File: | var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp |
Warning: | line 5032, column 22 Called C++ object pointer is null |
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1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | ||||
2 | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ | ||||
3 | /* This Source Code Form is subject to the terms of the Mozilla Public | ||||
4 | * License, v. 2.0. If a copy of the MPL was not distributed with this | ||||
5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | ||||
6 | |||||
7 | #include "EventStateManager.h" | ||||
8 | |||||
9 | #include "mozilla/AsyncEventDispatcher.h" | ||||
10 | #include "mozilla/Attributes.h" | ||||
11 | #include "mozilla/EditorBase.h" | ||||
12 | #include "mozilla/EventDispatcher.h" | ||||
13 | #include "mozilla/EventForwards.h" | ||||
14 | #include "mozilla/Hal.h" | ||||
15 | #include "mozilla/HTMLEditor.h" | ||||
16 | #include "mozilla/IMEStateManager.h" | ||||
17 | #include "mozilla/Likely.h" | ||||
18 | #include "mozilla/FocusModel.h" | ||||
19 | #include "mozilla/MiscEvents.h" | ||||
20 | #include "mozilla/MathAlgorithms.h" | ||||
21 | #include "mozilla/MouseEvents.h" | ||||
22 | #include "mozilla/PointerLockManager.h" | ||||
23 | #include "mozilla/PresShell.h" | ||||
24 | #include "mozilla/ScopeExit.h" | ||||
25 | #include "mozilla/ScrollTypes.h" | ||||
26 | #include "mozilla/TextComposition.h" | ||||
27 | #include "mozilla/TextControlElement.h" | ||||
28 | #include "mozilla/TextEditor.h" | ||||
29 | #include "mozilla/TextEvents.h" | ||||
30 | #include "mozilla/TouchEvents.h" | ||||
31 | #include "mozilla/Telemetry.h" | ||||
32 | #include "mozilla/UniquePtr.h" | ||||
33 | #include "mozilla/dom/BrowserBridgeChild.h" | ||||
34 | #include "mozilla/dom/BrowsingContext.h" | ||||
35 | #include "mozilla/dom/CanonicalBrowsingContext.h" | ||||
36 | #include "mozilla/dom/ContentChild.h" | ||||
37 | #include "mozilla/dom/DOMIntersectionObserver.h" | ||||
38 | #include "mozilla/dom/DragEvent.h" | ||||
39 | #include "mozilla/dom/Event.h" | ||||
40 | #include "mozilla/dom/FrameLoaderBinding.h" | ||||
41 | #include "mozilla/dom/HTMLLabelElement.h" | ||||
42 | #include "mozilla/dom/HTMLInputElement.h" | ||||
43 | #include "mozilla/dom/MouseEventBinding.h" | ||||
44 | #include "mozilla/dom/BrowserChild.h" | ||||
45 | #include "mozilla/dom/PointerEventHandler.h" | ||||
46 | #include "mozilla/dom/UIEvent.h" | ||||
47 | #include "mozilla/dom/UIEventBinding.h" | ||||
48 | #include "mozilla/dom/UserActivation.h" | ||||
49 | #include "mozilla/dom/WheelEventBinding.h" | ||||
50 | #include "mozilla/glean/GleanMetrics.h" | ||||
51 | #include "mozilla/ScrollContainerFrame.h" | ||||
52 | #include "mozilla/StaticPrefs_accessibility.h" | ||||
53 | #include "mozilla/StaticPrefs_browser.h" | ||||
54 | #include "mozilla/StaticPrefs_dom.h" | ||||
55 | #include "mozilla/StaticPrefs_layout.h" | ||||
56 | #include "mozilla/StaticPrefs_mousewheel.h" | ||||
57 | #include "mozilla/StaticPrefs_ui.h" | ||||
58 | #include "mozilla/StaticPrefs_zoom.h" | ||||
59 | |||||
60 | #include "ContentEventHandler.h" | ||||
61 | #include "IMEContentObserver.h" | ||||
62 | #include "WheelHandlingHelper.h" | ||||
63 | #include "RemoteDragStartData.h" | ||||
64 | |||||
65 | #include "nsCommandParams.h" | ||||
66 | #include "nsCOMPtr.h" | ||||
67 | #include "nsCopySupport.h" | ||||
68 | #include "nsFocusManager.h" | ||||
69 | #include "nsGenericHTMLElement.h" | ||||
70 | #include "nsIClipboard.h" | ||||
71 | #include "nsIContent.h" | ||||
72 | #include "nsIContentInlines.h" | ||||
73 | #include "mozilla/dom/Document.h" | ||||
74 | #include "nsICookieJarSettings.h" | ||||
75 | #include "nsIFrame.h" | ||||
76 | #include "nsFrameLoaderOwner.h" | ||||
77 | #include "nsIWeakReferenceUtils.h" | ||||
78 | #include "nsIWidget.h" | ||||
79 | #include "nsLiteralString.h" | ||||
80 | #include "nsPresContext.h" | ||||
81 | #include "nsTArray.h" | ||||
82 | #include "nsGkAtoms.h" | ||||
83 | #include "nsIFormControl.h" | ||||
84 | #include "nsComboboxControlFrame.h" | ||||
85 | #include "nsIDOMXULControlElement.h" | ||||
86 | #include "nsNameSpaceManager.h" | ||||
87 | #include "nsIBaseWindow.h" | ||||
88 | #include "nsFrameSelection.h" | ||||
89 | #include "nsPIDOMWindow.h" | ||||
90 | #include "nsPIWindowRoot.h" | ||||
91 | #include "nsIWebNavigation.h" | ||||
92 | #include "nsIDocumentViewer.h" | ||||
93 | #include "nsFrameManager.h" | ||||
94 | #include "nsIBrowserChild.h" | ||||
95 | #include "nsMenuPopupFrame.h" | ||||
96 | |||||
97 | #include "nsIObserverService.h" | ||||
98 | #include "nsIDocShell.h" | ||||
99 | |||||
100 | #include "nsSubDocumentFrame.h" | ||||
101 | #include "nsLayoutUtils.h" | ||||
102 | #include "nsIInterfaceRequestorUtils.h" | ||||
103 | #include "nsUnicharUtils.h" | ||||
104 | #include "nsContentUtils.h" | ||||
105 | |||||
106 | #include "imgIContainer.h" | ||||
107 | #include "nsIProperties.h" | ||||
108 | #include "nsISupportsPrimitives.h" | ||||
109 | |||||
110 | #include "nsServiceManagerUtils.h" | ||||
111 | #include "nsITimer.h" | ||||
112 | #include "nsFontMetrics.h" | ||||
113 | #include "nsIDragService.h" | ||||
114 | #include "nsIDragSession.h" | ||||
115 | #include "mozilla/dom/DataTransfer.h" | ||||
116 | #include "nsContentAreaDragDrop.h" | ||||
117 | #include "nsTreeBodyFrame.h" | ||||
118 | #include "nsIController.h" | ||||
119 | #include "mozilla/Services.h" | ||||
120 | #include "mozilla/dom/ContentParent.h" | ||||
121 | #include "mozilla/dom/Record.h" | ||||
122 | #include "mozilla/dom/Selection.h" | ||||
123 | |||||
124 | #include "mozilla/Preferences.h" | ||||
125 | #include "mozilla/LookAndFeel.h" | ||||
126 | #include "mozilla/ProfilerLabels.h" | ||||
127 | #include "Units.h" | ||||
128 | |||||
129 | #ifdef XP_MACOSX | ||||
130 | # import <ApplicationServices/ApplicationServices.h> | ||||
131 | #endif | ||||
132 | |||||
133 | namespace mozilla { | ||||
134 | |||||
135 | using namespace dom; | ||||
136 | |||||
137 | static const LayoutDeviceIntPoint kInvalidRefPoint = | ||||
138 | LayoutDeviceIntPoint(-1, -1); | ||||
139 | |||||
140 | static uint32_t gMouseOrKeyboardEventCounter = 0; | ||||
141 | static nsITimer* gUserInteractionTimer = nullptr; | ||||
142 | static nsITimerCallback* gUserInteractionTimerCallback = nullptr; | ||||
143 | |||||
144 | static const double kCursorLoadingTimeout = 1000; // ms | ||||
145 | static AutoWeakFrame gLastCursorSourceFrame; | ||||
146 | static TimeStamp gLastCursorUpdateTime; | ||||
147 | static TimeStamp gTypingStartTime; | ||||
148 | static TimeStamp gTypingEndTime; | ||||
149 | static int32_t gTypingInteractionKeyPresses = 0; | ||||
150 | static dom::InteractionData gTypingInteraction = {}; | ||||
151 | |||||
152 | static inline int32_t RoundDown(double aDouble) { | ||||
153 | return (aDouble > 0) ? static_cast<int32_t>(floor(aDouble)) | ||||
154 | : static_cast<int32_t>(ceil(aDouble)); | ||||
155 | } | ||||
156 | |||||
157 | static bool IsSelectingLink(nsIFrame* aTargetFrame) { | ||||
158 | if (!aTargetFrame) { | ||||
159 | return false; | ||||
160 | } | ||||
161 | const nsFrameSelection* frameSel = aTargetFrame->GetConstFrameSelection(); | ||||
162 | if (!frameSel || !frameSel->GetDragState()) { | ||||
163 | return false; | ||||
164 | } | ||||
165 | |||||
166 | if (!nsContentUtils::GetClosestLinkInFlatTree(aTargetFrame->GetContent())) { | ||||
167 | return false; | ||||
168 | } | ||||
169 | return true; | ||||
170 | } | ||||
171 | |||||
172 | static UniquePtr<WidgetMouseEvent> CreateMouseOrPointerWidgetEvent( | ||||
173 | WidgetMouseEvent* aMouseEvent, EventMessage aMessage, | ||||
174 | EventTarget* aRelatedTarget); | ||||
175 | |||||
176 | /** | ||||
177 | * Returns the common ancestor for mouseup purpose, given the | ||||
178 | * current mouseup target and the previous mousedown target. | ||||
179 | */ | ||||
180 | static nsINode* GetCommonAncestorForMouseUp( | ||||
181 | nsINode* aCurrentMouseUpTarget, nsINode* aLastMouseDownTarget, | ||||
182 | Maybe<FormControlType>& aLastMouseDownInputControlType) { | ||||
183 | if (!aCurrentMouseUpTarget || !aLastMouseDownTarget) { | ||||
184 | return nullptr; | ||||
185 | } | ||||
186 | |||||
187 | if (aCurrentMouseUpTarget == aLastMouseDownTarget) { | ||||
188 | return aCurrentMouseUpTarget; | ||||
189 | } | ||||
190 | |||||
191 | // Build the chain of parents | ||||
192 | AutoTArray<nsINode*, 30> parents1; | ||||
193 | do { | ||||
194 | parents1.AppendElement(aCurrentMouseUpTarget); | ||||
195 | aCurrentMouseUpTarget = aCurrentMouseUpTarget->GetFlattenedTreeParentNode(); | ||||
196 | } while (aCurrentMouseUpTarget); | ||||
197 | |||||
198 | AutoTArray<nsINode*, 30> parents2; | ||||
199 | do { | ||||
200 | parents2.AppendElement(aLastMouseDownTarget); | ||||
201 | if (aLastMouseDownTarget == parents1.LastElement()) { | ||||
202 | break; | ||||
203 | } | ||||
204 | aLastMouseDownTarget = aLastMouseDownTarget->GetFlattenedTreeParentNode(); | ||||
205 | } while (aLastMouseDownTarget); | ||||
206 | |||||
207 | // Find where the parent chain differs | ||||
208 | uint32_t pos1 = parents1.Length(); | ||||
209 | uint32_t pos2 = parents2.Length(); | ||||
210 | nsINode* parent = nullptr; | ||||
211 | for (uint32_t len = std::min(pos1, pos2); len > 0; --len) { | ||||
212 | nsINode* child1 = parents1.ElementAt(--pos1); | ||||
213 | nsINode* child2 = parents2.ElementAt(--pos2); | ||||
214 | if (child1 != child2) { | ||||
215 | break; | ||||
216 | } | ||||
217 | |||||
218 | // If the input control type is different between mouseup and mousedown, | ||||
219 | // this is not a valid click. | ||||
220 | if (HTMLInputElement* input = HTMLInputElement::FromNodeOrNull(child1)) { | ||||
221 | if (aLastMouseDownInputControlType.isSome() && | ||||
222 | aLastMouseDownInputControlType.ref() != input->ControlType()) { | ||||
223 | break; | ||||
224 | } | ||||
225 | } | ||||
226 | parent = child1; | ||||
227 | } | ||||
228 | |||||
229 | return parent; | ||||
230 | } | ||||
231 | |||||
232 | LazyLogModule sMouseBoundaryLog("MouseBoundaryEvents"); | ||||
233 | LazyLogModule sPointerBoundaryLog("PointerBoundaryEvents"); | ||||
234 | |||||
235 | /******************************************************************/ | ||||
236 | /* mozilla::UITimerCallback */ | ||||
237 | /******************************************************************/ | ||||
238 | |||||
239 | class UITimerCallback final : public nsITimerCallback, public nsINamed { | ||||
240 | public: | ||||
241 | UITimerCallback() : mPreviousCount(0) {} | ||||
242 | NS_DECL_ISUPPORTSpublic: virtual nsresult QueryInterface(const nsIID& aIID , void** aInstancePtr) override; virtual MozExternalRefCountType AddRef(void) override; virtual MozExternalRefCountType Release (void) override; using HasThreadSafeRefCnt = std::false_type; protected: nsAutoRefCnt mRefCnt; nsAutoOwningThread _mOwningThread ; public: | ||||
243 | NS_DECL_NSITIMERCALLBACKvirtual nsresult Notify(nsITimer *timer) override; inline void _ensure_GetName_exists(void) { static_assert(std::is_convertible <decltype(this), nsINamed*>::value, "nsITimerCallback implementations must also implement nsINamed" ); } | ||||
244 | NS_DECL_NSINAMEDvirtual nsresult GetName(nsACString& aName) override; | ||||
245 | private: | ||||
246 | ~UITimerCallback() = default; | ||||
247 | uint32_t mPreviousCount; | ||||
248 | }; | ||||
249 | |||||
250 | NS_IMPL_ISUPPORTS(UITimerCallback, nsITimerCallback, nsINamed)MozExternalRefCountType UITimerCallback::AddRef(void) { static_assert (!std::is_destructible_v<UITimerCallback>, "Reference-counted class " "UITimerCallback" " should not have a public destructor. " "Make this class's destructor non-public" ); do { static_assert( mozilla::detail::AssertionConditionType <decltype(int32_t(mRefCnt) >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) >= 0" " (" "illegal refcnt" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 250); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 250; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); do { static_assert( mozilla::detail::AssertionConditionType <decltype("UITimerCallback" != nullptr)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!("UITimerCallback" != nullptr ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "\"UITimerCallback\" != nullptr" " (" "Must specify a name" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 250); AnnotateMozCrashReason("MOZ_ASSERT" "(" "\"UITimerCallback\" != nullptr" ") (" "Must specify a name" ")"); do { *((volatile int*)__null ) = 250; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); if (!mRefCnt.isThreadSafe) _mOwningThread .AssertOwnership("UITimerCallback" " not thread-safe"); nsrefcnt count = ++mRefCnt; NS_LogAddRef((this), (count), ("UITimerCallback" ), (uint32_t)(sizeof(*this))); return count; } MozExternalRefCountType UITimerCallback::Release(void) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(int32_t(mRefCnt) > 0)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(int32_t(mRefCnt) > 0))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("int32_t(mRefCnt) > 0" " (" "dup release" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 250); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 250 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); do { static_assert( mozilla::detail::AssertionConditionType <decltype("UITimerCallback" != nullptr)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!("UITimerCallback" != nullptr ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "\"UITimerCallback\" != nullptr" " (" "Must specify a name" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 250); AnnotateMozCrashReason("MOZ_ASSERT" "(" "\"UITimerCallback\" != nullptr" ") (" "Must specify a name" ")"); do { *((volatile int*)__null ) = 250; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); if (!mRefCnt.isThreadSafe) _mOwningThread .AssertOwnership("UITimerCallback" " not thread-safe"); const char* const nametmp = "UITimerCallback"; nsrefcnt count = -- mRefCnt; NS_LogRelease((this), (count), (nametmp)); if (count == 0) { mRefCnt = 1; delete (this); return 0; } return count ; } nsresult UITimerCallback::QueryInterface(const nsIID& aIID, void** aInstancePtr) { do { if (!(aInstancePtr)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "QueryInterface requires a non-NULL destination!" , "aInstancePtr", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 250); MOZ_PretendNoReturn(); } } while (0); nsresult rv = NS_ERROR_FAILURE ; static_assert(2 > 0, "Need more arguments to NS_INTERFACE_TABLE" ); static const QITableEntry table[] = { {&mozilla::detail ::kImplementedIID<UITimerCallback, nsITimerCallback>, int32_t ( reinterpret_cast<char*>(static_cast<nsITimerCallback *>((UITimerCallback*)0x1000)) - reinterpret_cast<char*> ((UITimerCallback*)0x1000))}, {&mozilla::detail::kImplementedIID <UITimerCallback, nsINamed>, int32_t( reinterpret_cast< char*>(static_cast<nsINamed*>((UITimerCallback*)0x1000 )) - reinterpret_cast<char*>((UITimerCallback*)0x1000)) }, {&mozilla::detail::kImplementedIID<UITimerCallback, nsISupports>, int32_t(reinterpret_cast<char*>(static_cast <nsISupports*>( static_cast<nsITimerCallback*>((UITimerCallback *)0x1000))) - reinterpret_cast<char*>((UITimerCallback* )0x1000))}, { nullptr, 0 } } ; static_assert((sizeof(table) / sizeof(table[0])) > 1, "need at least 1 interface"); rv = NS_TableDrivenQI(static_cast<void*>(this), aIID, aInstancePtr , table); return rv; } | ||||
251 | |||||
252 | // If aTimer is nullptr, this method always sends "user-interaction-inactive" | ||||
253 | // notification. | ||||
254 | NS_IMETHODIMPnsresult | ||||
255 | UITimerCallback::Notify(nsITimer* aTimer) { | ||||
256 | nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService(); | ||||
257 | if (!obs) return NS_ERROR_FAILURE; | ||||
258 | if ((gMouseOrKeyboardEventCounter == mPreviousCount) || !aTimer) { | ||||
259 | gMouseOrKeyboardEventCounter = 0; | ||||
260 | obs->NotifyObservers(nullptr, "user-interaction-inactive", nullptr); | ||||
261 | if (gUserInteractionTimer) { | ||||
262 | gUserInteractionTimer->Cancel(); | ||||
263 | NS_RELEASE(gUserInteractionTimer)do { (gUserInteractionTimer)->Release(); (gUserInteractionTimer ) = 0; } while (0); | ||||
264 | } | ||||
265 | } else { | ||||
266 | obs->NotifyObservers(nullptr, "user-interaction-active", nullptr); | ||||
267 | EventStateManager::UpdateUserActivityTimer(); | ||||
268 | |||||
269 | if (XRE_IsParentProcess()) { | ||||
270 | hal::BatteryInformation batteryInfo; | ||||
271 | hal::GetCurrentBatteryInformation(&batteryInfo); | ||||
272 | glean::power_battery::percentage_when_user_active.AccumulateSingleSample( | ||||
273 | uint64_t(batteryInfo.level() * 100)); | ||||
274 | } | ||||
275 | } | ||||
276 | mPreviousCount = gMouseOrKeyboardEventCounter; | ||||
277 | return NS_OK; | ||||
278 | } | ||||
279 | |||||
280 | NS_IMETHODIMPnsresult | ||||
281 | UITimerCallback::GetName(nsACString& aName) { | ||||
282 | aName.AssignLiteral("UITimerCallback_timer"); | ||||
283 | return NS_OK; | ||||
284 | } | ||||
285 | |||||
286 | /******************************************************************/ | ||||
287 | /* mozilla::OverOutElementsWrapper */ | ||||
288 | /******************************************************************/ | ||||
289 | |||||
290 | NS_IMPL_CYCLE_COLLECTION(OverOutElementsWrapper, mDeepestEnterEventTarget,OverOutElementsWrapper::cycleCollection OverOutElementsWrapper ::_cycleCollectorGlobal; void OverOutElementsWrapper::cycleCollection ::Unlink(void* p) { OverOutElementsWrapper* tmp = DowncastCCParticipant <OverOutElementsWrapper>(p); ImplCycleCollectionUnlink( tmp->mDeepestEnterEventTarget); ImplCycleCollectionUnlink( tmp->mDispatchingOverEventTarget); ImplCycleCollectionUnlink (tmp->mDispatchingOutOrDeepestLeaveEventTarget); (void)tmp ; } nsresult OverOutElementsWrapper::cycleCollection::TraverseNative ( void* p, nsCycleCollectionTraversalCallback& cb) { OverOutElementsWrapper * tmp = DowncastCCParticipant<OverOutElementsWrapper>(p ); cb.DescribeRefCountedNode(tmp->mRefCnt.get(), "OverOutElementsWrapper" ); ImplCycleCollectionTraverse(cb, tmp->mDeepestEnterEventTarget , "mDeepestEnterEventTarget", 0); ImplCycleCollectionTraverse (cb, tmp->mDispatchingOverEventTarget, "mDispatchingOverEventTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mDispatchingOutOrDeepestLeaveEventTarget , "mDispatchingOutOrDeepestLeaveEventTarget", 0); (void)tmp; return NS_OK; } | ||||
291 | mDispatchingOverEventTarget,OverOutElementsWrapper::cycleCollection OverOutElementsWrapper ::_cycleCollectorGlobal; void OverOutElementsWrapper::cycleCollection ::Unlink(void* p) { OverOutElementsWrapper* tmp = DowncastCCParticipant <OverOutElementsWrapper>(p); ImplCycleCollectionUnlink( tmp->mDeepestEnterEventTarget); ImplCycleCollectionUnlink( tmp->mDispatchingOverEventTarget); ImplCycleCollectionUnlink (tmp->mDispatchingOutOrDeepestLeaveEventTarget); (void)tmp ; } nsresult OverOutElementsWrapper::cycleCollection::TraverseNative ( void* p, nsCycleCollectionTraversalCallback& cb) { OverOutElementsWrapper * tmp = DowncastCCParticipant<OverOutElementsWrapper>(p ); cb.DescribeRefCountedNode(tmp->mRefCnt.get(), "OverOutElementsWrapper" ); ImplCycleCollectionTraverse(cb, tmp->mDeepestEnterEventTarget , "mDeepestEnterEventTarget", 0); ImplCycleCollectionTraverse (cb, tmp->mDispatchingOverEventTarget, "mDispatchingOverEventTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mDispatchingOutOrDeepestLeaveEventTarget , "mDispatchingOutOrDeepestLeaveEventTarget", 0); (void)tmp; return NS_OK; } | ||||
292 | mDispatchingOutOrDeepestLeaveEventTarget)OverOutElementsWrapper::cycleCollection OverOutElementsWrapper ::_cycleCollectorGlobal; void OverOutElementsWrapper::cycleCollection ::Unlink(void* p) { OverOutElementsWrapper* tmp = DowncastCCParticipant <OverOutElementsWrapper>(p); ImplCycleCollectionUnlink( tmp->mDeepestEnterEventTarget); ImplCycleCollectionUnlink( tmp->mDispatchingOverEventTarget); ImplCycleCollectionUnlink (tmp->mDispatchingOutOrDeepestLeaveEventTarget); (void)tmp ; } nsresult OverOutElementsWrapper::cycleCollection::TraverseNative ( void* p, nsCycleCollectionTraversalCallback& cb) { OverOutElementsWrapper * tmp = DowncastCCParticipant<OverOutElementsWrapper>(p ); cb.DescribeRefCountedNode(tmp->mRefCnt.get(), "OverOutElementsWrapper" ); ImplCycleCollectionTraverse(cb, tmp->mDeepestEnterEventTarget , "mDeepestEnterEventTarget", 0); ImplCycleCollectionTraverse (cb, tmp->mDispatchingOverEventTarget, "mDispatchingOverEventTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mDispatchingOutOrDeepestLeaveEventTarget , "mDispatchingOutOrDeepestLeaveEventTarget", 0); (void)tmp; return NS_OK; } | ||||
293 | NS_IMPL_CYCLE_COLLECTING_ADDREF(OverOutElementsWrapper)MozExternalRefCountType OverOutElementsWrapper::AddRef(void) { static_assert(!std::is_destructible_v<OverOutElementsWrapper >, "Reference-counted class " "OverOutElementsWrapper" " should not have a public destructor. " "Make this class's destructor non-public"); do { static_assert ( mozilla::detail::AssertionConditionType<decltype(int32_t (mRefCnt) >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) >= 0" " (" "illegal refcnt" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 293); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 293; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("OverOutElementsWrapper" " not thread-safe"); nsISupports* base = OverOutElementsWrapper ::cycleCollection::Upcast(this); nsrefcnt count = mRefCnt.incr (base); NS_LogAddRef((this), (count), ("OverOutElementsWrapper" ), (uint32_t)(sizeof(*this))); return count; } | ||||
294 | NS_IMPL_CYCLE_COLLECTING_RELEASE(OverOutElementsWrapper)MozExternalRefCountType OverOutElementsWrapper::Release(void) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(int32_t(mRefCnt) > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) > 0))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) > 0" " (" "dup release" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 294); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 294 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("OverOutElementsWrapper" " not thread-safe"); nsISupports* base = OverOutElementsWrapper ::cycleCollection::Upcast(this); nsrefcnt count = mRefCnt.decr (base); NS_LogRelease((this), (count), ("OverOutElementsWrapper" )); return count; } void OverOutElementsWrapper::DeleteCycleCollectable (void) { delete (this); } | ||||
295 | |||||
296 | NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(OverOutElementsWrapper)nsresult OverOutElementsWrapper::QueryInterface(const nsIID& aIID, void** aInstancePtr) { do { if (!(aInstancePtr)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "QueryInterface requires a non-NULL destination!" , "aInstancePtr", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 296); MOZ_PretendNoReturn(); } } while (0); nsISupports* foundInterface ; if (TopThreeWordsEquals( aIID, (nsXPCOMCycleCollectionParticipant ::COMTypeInfo<nsXPCOMCycleCollectionParticipant, void>:: kIID), (nsCycleCollectionISupports::COMTypeInfo<nsCycleCollectionISupports , void>::kIID)) && (LowWordEquals(aIID, (nsXPCOMCycleCollectionParticipant ::COMTypeInfo<nsXPCOMCycleCollectionParticipant, void>:: kIID)) || LowWordEquals(aIID, (nsCycleCollectionISupports::COMTypeInfo <nsCycleCollectionISupports, void>::kIID)))) { if (LowWordEquals (aIID, (nsXPCOMCycleCollectionParticipant::COMTypeInfo<nsXPCOMCycleCollectionParticipant , void>::kIID))) { *aInstancePtr = OverOutElementsWrapper:: cycleCollection::GetParticipant(); return NS_OK; } if (LowWordEquals (aIID, (nsCycleCollectionISupports::COMTypeInfo<nsCycleCollectionISupports , void>::kIID))) { *aInstancePtr = OverOutElementsWrapper:: cycleCollection::Upcast(this); return NS_OK; } foundInterface = nullptr; } else | ||||
297 | NS_INTERFACE_MAP_ENTRY(nsISupports)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsISupports>)) foundInterface = static_cast <nsISupports*>(this); else | ||||
298 | NS_INTERFACE_MAP_ENDfoundInterface = 0; nsresult status; if (!foundInterface) { do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aIID.Equals((nsISupports::COMTypeInfo<nsISupports , void>::kIID)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aIID.Equals((nsISupports::COMTypeInfo <nsISupports, void>::kIID))))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("!aIID.Equals((nsISupports::COMTypeInfo<nsISupports, void>::kIID))" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 298); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aIID.Equals((nsISupports::COMTypeInfo<nsISupports, void>::kIID))" ")"); do { *((volatile int*)__null) = 298; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); status = NS_NOINTERFACE ; } else { (foundInterface)->AddRef(); status = NS_OK; } * aInstancePtr = foundInterface; return status; } | ||||
299 | |||||
300 | already_AddRefed<nsIWidget> OverOutElementsWrapper::GetLastOverWidget() const { | ||||
301 | nsCOMPtr<nsIWidget> widget = do_QueryReferent(mLastOverWidget); | ||||
302 | return widget.forget(); | ||||
303 | } | ||||
304 | |||||
305 | void OverOutElementsWrapper::ContentRemoved(nsIContent& aContent) { | ||||
306 | if (!mDeepestEnterEventTarget) { | ||||
307 | return; | ||||
308 | } | ||||
309 | |||||
310 | if (!nsContentUtils::ContentIsFlattenedTreeDescendantOf( | ||||
311 | mDeepestEnterEventTarget, &aContent)) { | ||||
312 | return; | ||||
313 | } | ||||
314 | |||||
315 | LogModule* const logModule = mType == BoundaryEventType::Mouse | ||||
316 | ? sMouseBoundaryLog | ||||
317 | : sPointerBoundaryLog; | ||||
318 | |||||
319 | if (!StaticPrefs:: | ||||
320 | dom_events_mouse_pointer_boundary_keep_enter_targets_after_over_target_removed()) { | ||||
321 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"over\" event target (%p) is removed" , mDeepestEnterEventTarget.get()); } } while (0) | ||||
322 | ("The last \"over\" event target (%p) is removed",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"over\" event target (%p) is removed" , mDeepestEnterEventTarget.get()); } } while (0) | ||||
323 | mDeepestEnterEventTarget.get()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"over\" event target (%p) is removed" , mDeepestEnterEventTarget.get()); } } while (0); | ||||
324 | StoreOverEventTargetAndDeepestEnterEventTarget(nullptr); | ||||
325 | return; | ||||
326 | } | ||||
327 | |||||
328 | if (mDispatchingOverEventTarget && | ||||
329 | (mDeepestEnterEventTarget == mDispatchingOverEventTarget || | ||||
330 | nsContentUtils::ContentIsFlattenedTreeDescendantOf( | ||||
331 | mDispatchingOverEventTarget, &aContent))) { | ||||
332 | if (mDispatchingOverEventTarget == | ||||
333 | mDispatchingOutOrDeepestLeaveEventTarget) { | ||||
334 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"%s\" event target (%p) is removed" , LastOverEventTargetIsOutEventTarget() ? "out" : "leave", mDispatchingOutOrDeepestLeaveEventTarget .get()); } } while (0) | ||||
335 | ("The dispatching \"%s\" event target (%p) is removed",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"%s\" event target (%p) is removed" , LastOverEventTargetIsOutEventTarget() ? "out" : "leave", mDispatchingOutOrDeepestLeaveEventTarget .get()); } } while (0) | ||||
336 | LastOverEventTargetIsOutEventTarget() ? "out" : "leave",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"%s\" event target (%p) is removed" , LastOverEventTargetIsOutEventTarget() ? "out" : "leave", mDispatchingOutOrDeepestLeaveEventTarget .get()); } } while (0) | ||||
337 | mDispatchingOutOrDeepestLeaveEventTarget.get()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"%s\" event target (%p) is removed" , LastOverEventTargetIsOutEventTarget() ? "out" : "leave", mDispatchingOutOrDeepestLeaveEventTarget .get()); } } while (0); | ||||
338 | mDispatchingOutOrDeepestLeaveEventTarget = nullptr; | ||||
339 | } | ||||
340 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"over\" event target (%p) is removed" , mDispatchingOverEventTarget.get()); } } while (0) | ||||
341 | ("The dispatching \"over\" event target (%p) is removed",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"over\" event target (%p) is removed" , mDispatchingOverEventTarget.get()); } } while (0) | ||||
342 | mDispatchingOverEventTarget.get()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"over\" event target (%p) is removed" , mDispatchingOverEventTarget.get()); } } while (0); | ||||
343 | mDispatchingOverEventTarget = nullptr; | ||||
344 | } | ||||
345 | if (mDispatchingOutOrDeepestLeaveEventTarget && | ||||
346 | (mDeepestEnterEventTarget == mDispatchingOutOrDeepestLeaveEventTarget || | ||||
347 | nsContentUtils::ContentIsFlattenedTreeDescendantOf( | ||||
348 | mDispatchingOutOrDeepestLeaveEventTarget, &aContent))) { | ||||
349 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"%s\" event target (%p) is removed" , LastOverEventTargetIsOutEventTarget() ? "out" : "leave", mDispatchingOutOrDeepestLeaveEventTarget .get()); } } while (0) | ||||
350 | ("The dispatching \"%s\" event target (%p) is removed",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"%s\" event target (%p) is removed" , LastOverEventTargetIsOutEventTarget() ? "out" : "leave", mDispatchingOutOrDeepestLeaveEventTarget .get()); } } while (0) | ||||
351 | LastOverEventTargetIsOutEventTarget() ? "out" : "leave",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"%s\" event target (%p) is removed" , LastOverEventTargetIsOutEventTarget() ? "out" : "leave", mDispatchingOutOrDeepestLeaveEventTarget .get()); } } while (0) | ||||
352 | mDispatchingOutOrDeepestLeaveEventTarget.get()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The dispatching \"%s\" event target (%p) is removed" , LastOverEventTargetIsOutEventTarget() ? "out" : "leave", mDispatchingOutOrDeepestLeaveEventTarget .get()); } } while (0); | ||||
353 | mDispatchingOutOrDeepestLeaveEventTarget = nullptr; | ||||
354 | } | ||||
355 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"%s\" event target (%p) is removed and now the last " "deepest enter target becomes %s(%p)", LastOverEventTargetIsOutEventTarget () ? "over" : "enter", mDeepestEnterEventTarget.get(), aContent .GetFlattenedTreeParent() ? ToString(*aContent.GetFlattenedTreeParent ()).c_str() : "nullptr", aContent.GetFlattenedTreeParent()); } } while (0) | ||||
356 | ("The last \"%s\" event target (%p) is removed and now the last "do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"%s\" event target (%p) is removed and now the last " "deepest enter target becomes %s(%p)", LastOverEventTargetIsOutEventTarget () ? "over" : "enter", mDeepestEnterEventTarget.get(), aContent .GetFlattenedTreeParent() ? ToString(*aContent.GetFlattenedTreeParent ()).c_str() : "nullptr", aContent.GetFlattenedTreeParent()); } } while (0) | ||||
357 | "deepest enter target becomes %s(%p)",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"%s\" event target (%p) is removed and now the last " "deepest enter target becomes %s(%p)", LastOverEventTargetIsOutEventTarget () ? "over" : "enter", mDeepestEnterEventTarget.get(), aContent .GetFlattenedTreeParent() ? ToString(*aContent.GetFlattenedTreeParent ()).c_str() : "nullptr", aContent.GetFlattenedTreeParent()); } } while (0) | ||||
358 | LastOverEventTargetIsOutEventTarget() ? "over" : "enter",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"%s\" event target (%p) is removed and now the last " "deepest enter target becomes %s(%p)", LastOverEventTargetIsOutEventTarget () ? "over" : "enter", mDeepestEnterEventTarget.get(), aContent .GetFlattenedTreeParent() ? ToString(*aContent.GetFlattenedTreeParent ()).c_str() : "nullptr", aContent.GetFlattenedTreeParent()); } } while (0) | ||||
359 | mDeepestEnterEventTarget.get(),do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"%s\" event target (%p) is removed and now the last " "deepest enter target becomes %s(%p)", LastOverEventTargetIsOutEventTarget () ? "over" : "enter", mDeepestEnterEventTarget.get(), aContent .GetFlattenedTreeParent() ? ToString(*aContent.GetFlattenedTreeParent ()).c_str() : "nullptr", aContent.GetFlattenedTreeParent()); } } while (0) | ||||
360 | aContent.GetFlattenedTreeParent()do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"%s\" event target (%p) is removed and now the last " "deepest enter target becomes %s(%p)", LastOverEventTargetIsOutEventTarget () ? "over" : "enter", mDeepestEnterEventTarget.get(), aContent .GetFlattenedTreeParent() ? ToString(*aContent.GetFlattenedTreeParent ()).c_str() : "nullptr", aContent.GetFlattenedTreeParent()); } } while (0) | ||||
361 | ? ToString(*aContent.GetFlattenedTreeParent()).c_str()do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"%s\" event target (%p) is removed and now the last " "deepest enter target becomes %s(%p)", LastOverEventTargetIsOutEventTarget () ? "over" : "enter", mDeepestEnterEventTarget.get(), aContent .GetFlattenedTreeParent() ? ToString(*aContent.GetFlattenedTreeParent ()).c_str() : "nullptr", aContent.GetFlattenedTreeParent()); } } while (0) | ||||
362 | : "nullptr",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"%s\" event target (%p) is removed and now the last " "deepest enter target becomes %s(%p)", LastOverEventTargetIsOutEventTarget () ? "over" : "enter", mDeepestEnterEventTarget.get(), aContent .GetFlattenedTreeParent() ? ToString(*aContent.GetFlattenedTreeParent ()).c_str() : "nullptr", aContent.GetFlattenedTreeParent()); } } while (0) | ||||
363 | aContent.GetFlattenedTreeParent()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The last \"%s\" event target (%p) is removed and now the last " "deepest enter target becomes %s(%p)", LastOverEventTargetIsOutEventTarget () ? "over" : "enter", mDeepestEnterEventTarget.get(), aContent .GetFlattenedTreeParent() ? ToString(*aContent.GetFlattenedTreeParent ()).c_str() : "nullptr", aContent.GetFlattenedTreeParent()); } } while (0); | ||||
364 | UpdateDeepestEnterEventTarget(aContent.GetFlattenedTreeParent()); | ||||
365 | } | ||||
366 | |||||
367 | void OverOutElementsWrapper::TryToRestorePendingRemovedOverTarget( | ||||
368 | const WidgetEvent* aEvent) { | ||||
369 | if (!MaybeHasPendingRemovingOverEventTarget()) { | ||||
370 | return; | ||||
371 | } | ||||
372 | |||||
373 | LogModule* const logModule = mType == BoundaryEventType::Mouse | ||||
374 | ? sMouseBoundaryLog | ||||
375 | : sPointerBoundaryLog; | ||||
376 | |||||
377 | // If we receive a mouse event immediately, let's try to restore the last | ||||
378 | // "over" event target as the following "out" event target. We assume that a | ||||
379 | // synthesized mousemove or another mouse event is being dispatched at latest | ||||
380 | // the next animation frame from the removal. However, synthesized mouse move | ||||
381 | // which is enqueued by ContentRemoved() may not sent to this instance because | ||||
382 | // the target is considered with the latest layout, so the document of this | ||||
383 | // instance may be moved somewhere before the next animation frame. | ||||
384 | // Therefore, we should not restore the last "over" target if we receive an | ||||
385 | // unexpected event like a keyboard event, a wheel event, etc. | ||||
386 | if (aEvent->AsMouseEvent()) { | ||||
387 | // Restore the original "over" event target should be allowed only when it's | ||||
388 | // reconnected under the last deepest "enter" event target because we need | ||||
389 | // to dispatch "leave" events later at least on the ancestors which have | ||||
390 | // never been removed from the tree. | ||||
391 | // XXX If new ancestor is inserted between mDeepestEnterEventTarget and | ||||
392 | // mPendingToRemoveLastOverEventTarget, we will dispatch "leave" event even | ||||
393 | // though we have not dispatched "enter" event on the element. For fixing | ||||
394 | // this, we need to store the full path of the last "out" event target when | ||||
395 | // it's removed from the tree. I guess we can be relax for this issue | ||||
396 | // because this hack is required for web apps which reconnect the target | ||||
397 | // to the same position immediately. | ||||
398 | // XXX Should be IsInclusiveFlatTreeDescendantOf()? However, it may | ||||
399 | // be reconnected into a subtree which is different from where the | ||||
400 | // last over element was. | ||||
401 | nsCOMPtr<nsIContent> pendingRemovingOverEventTarget = | ||||
402 | GetPendingRemovingOverEventTarget(); | ||||
403 | if (pendingRemovingOverEventTarget && | ||||
404 | pendingRemovingOverEventTarget->IsInclusiveDescendantOf( | ||||
405 | mDeepestEnterEventTarget)) { | ||||
406 | // StoreOverEventTargetAndDeepestEnterEventTarget() always resets | ||||
407 | // mLastOverWidget. When we restore the pending removing "over" event | ||||
408 | // target, we need to keep storing the original "over" widget too. | ||||
409 | nsCOMPtr<nsIWeakReference> widget = std::move(mLastOverWidget); | ||||
410 | StoreOverEventTargetAndDeepestEnterEventTarget( | ||||
411 | pendingRemovingOverEventTarget); | ||||
412 | mLastOverWidget = std::move(widget); | ||||
413 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The \"over\" event target (%p) is restored" , mDeepestEnterEventTarget.get()); } } while (0) | ||||
414 | ("The \"over\" event target (%p) is restored",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The \"over\" event target (%p) is restored" , mDeepestEnterEventTarget.get()); } } while (0) | ||||
415 | mDeepestEnterEventTarget.get()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The \"over\" event target (%p) is restored" , mDeepestEnterEventTarget.get()); } } while (0); | ||||
416 | return; | ||||
417 | } | ||||
418 | MOZ_LOG(logModule, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because it is not " "reconnected under the deepest enter event target (%p)", mPendingRemovingOverEventTarget .get(), mDeepestEnterEventTarget.get()); } } while (0) | ||||
419 | ("Forgetting the last \"over\" event target (%p) because it is not "do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because it is not " "reconnected under the deepest enter event target (%p)", mPendingRemovingOverEventTarget .get(), mDeepestEnterEventTarget.get()); } } while (0) | ||||
420 | "reconnected under the deepest enter event target (%p)",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because it is not " "reconnected under the deepest enter event target (%p)", mPendingRemovingOverEventTarget .get(), mDeepestEnterEventTarget.get()); } } while (0) | ||||
421 | mPendingRemovingOverEventTarget.get(),do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because it is not " "reconnected under the deepest enter event target (%p)", mPendingRemovingOverEventTarget .get(), mDeepestEnterEventTarget.get()); } } while (0) | ||||
422 | mDeepestEnterEventTarget.get()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because it is not " "reconnected under the deepest enter event target (%p)", mPendingRemovingOverEventTarget .get(), mDeepestEnterEventTarget.get()); } } while (0); | ||||
423 | } else { | ||||
424 | MOZ_LOG(logModule, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because an " "unexpected event (%s) is being dispatched, that means that " "EventStateManager didn't receive a synthesized mousemove which " "should be dispatched at next animation frame from the removal" , mPendingRemovingOverEventTarget.get(), ToChar(aEvent->mMessage )); } } while (0) | ||||
425 | ("Forgetting the last \"over\" event target (%p) because an "do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because an " "unexpected event (%s) is being dispatched, that means that " "EventStateManager didn't receive a synthesized mousemove which " "should be dispatched at next animation frame from the removal" , mPendingRemovingOverEventTarget.get(), ToChar(aEvent->mMessage )); } } while (0) | ||||
426 | "unexpected event (%s) is being dispatched, that means that "do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because an " "unexpected event (%s) is being dispatched, that means that " "EventStateManager didn't receive a synthesized mousemove which " "should be dispatched at next animation frame from the removal" , mPendingRemovingOverEventTarget.get(), ToChar(aEvent->mMessage )); } } while (0) | ||||
427 | "EventStateManager didn't receive a synthesized mousemove which "do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because an " "unexpected event (%s) is being dispatched, that means that " "EventStateManager didn't receive a synthesized mousemove which " "should be dispatched at next animation frame from the removal" , mPendingRemovingOverEventTarget.get(), ToChar(aEvent->mMessage )); } } while (0) | ||||
428 | "should be dispatched at next animation frame from the removal",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because an " "unexpected event (%s) is being dispatched, that means that " "EventStateManager didn't receive a synthesized mousemove which " "should be dispatched at next animation frame from the removal" , mPendingRemovingOverEventTarget.get(), ToChar(aEvent->mMessage )); } } while (0) | ||||
429 | mPendingRemovingOverEventTarget.get(), ToChar(aEvent->mMessage)))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Forgetting the last \"over\" event target (%p) because an " "unexpected event (%s) is being dispatched, that means that " "EventStateManager didn't receive a synthesized mousemove which " "should be dispatched at next animation frame from the removal" , mPendingRemovingOverEventTarget.get(), ToChar(aEvent->mMessage )); } } while (0); | ||||
430 | } | ||||
431 | |||||
432 | // Now, we should not restore mPendingRemovingOverEventTarget to | ||||
433 | // mDeepestEnterEventTarget anymore since mPendingRemovingOverEventTarget was | ||||
434 | // moved outside the subtree of mDeepestEnterEventTarget. | ||||
435 | mPendingRemovingOverEventTarget = nullptr; | ||||
436 | } | ||||
437 | |||||
438 | void OverOutElementsWrapper::WillDispatchOverAndEnterEvent( | ||||
439 | nsIContent* aOverEventTarget) { | ||||
440 | StoreOverEventTargetAndDeepestEnterEventTarget(aOverEventTarget); | ||||
441 | // Store the first "over" event target we fire and don't refire "over" event | ||||
442 | // to that element while the first "over" event is still ongoing. | ||||
443 | mDispatchingOverEventTarget = aOverEventTarget; | ||||
444 | } | ||||
445 | |||||
446 | void OverOutElementsWrapper::DidDispatchOverAndEnterEvent( | ||||
447 | nsIContent* aOriginalOverTargetInComposedDoc, | ||||
448 | nsIWidget* aOverEventTargetWidget) { | ||||
449 | mDispatchingOverEventTarget = nullptr; | ||||
450 | mLastOverWidget = do_GetWeakReference(aOverEventTargetWidget); | ||||
451 | |||||
452 | // Pointer Events define that once the `pointerover` event target is removed | ||||
453 | // from the tree, `pointerout` should not be fired on that and the closest | ||||
454 | // connected ancestor at the target removal should be kept as the deepest | ||||
455 | // `pointerleave` target. Therefore, we don't need the special handling for | ||||
456 | // `pointerout` event target if the last `pointerover` target is temporarily | ||||
457 | // removed from the tree. | ||||
458 | if (mType == OverOutElementsWrapper::BoundaryEventType::Pointer) { | ||||
459 | return; | ||||
460 | } | ||||
461 | |||||
462 | // Assume that the caller checks whether aOriginalOverTarget is in the | ||||
463 | // original document. If we don't enable the strict mouse/pointer event | ||||
464 | // boundary event dispatching by the pref (see below), | ||||
465 | // mDeepestEnterEventTarget is set to nullptr when the last "over" target is | ||||
466 | // removed. Therefore, we cannot check whether aOriginalOverTarget is in the | ||||
467 | // original document here. | ||||
468 | if (!aOriginalOverTargetInComposedDoc) { | ||||
469 | return; | ||||
470 | } | ||||
471 | MOZ_ASSERT_IF(mDeepestEnterEventTarget,do { if (mDeepestEnterEventTarget) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(mDeepestEnterEventTarget ->GetComposedDoc() == aOriginalOverTargetInComposedDoc-> GetComposedDoc())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mDeepestEnterEventTarget-> GetComposedDoc() == aOriginalOverTargetInComposedDoc->GetComposedDoc ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mDeepestEnterEventTarget->GetComposedDoc() == aOriginalOverTargetInComposedDoc->GetComposedDoc()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 473); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mDeepestEnterEventTarget->GetComposedDoc() == aOriginalOverTargetInComposedDoc->GetComposedDoc()" ")"); do { *((volatile int*)__null) = 473; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | ||||
472 | mDeepestEnterEventTarget->GetComposedDoc() ==do { if (mDeepestEnterEventTarget) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(mDeepestEnterEventTarget ->GetComposedDoc() == aOriginalOverTargetInComposedDoc-> GetComposedDoc())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mDeepestEnterEventTarget-> GetComposedDoc() == aOriginalOverTargetInComposedDoc->GetComposedDoc ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mDeepestEnterEventTarget->GetComposedDoc() == aOriginalOverTargetInComposedDoc->GetComposedDoc()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 473); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mDeepestEnterEventTarget->GetComposedDoc() == aOriginalOverTargetInComposedDoc->GetComposedDoc()" ")"); do { *((volatile int*)__null) = 473; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | ||||
473 | aOriginalOverTargetInComposedDoc->GetComposedDoc())do { if (mDeepestEnterEventTarget) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(mDeepestEnterEventTarget ->GetComposedDoc() == aOriginalOverTargetInComposedDoc-> GetComposedDoc())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mDeepestEnterEventTarget-> GetComposedDoc() == aOriginalOverTargetInComposedDoc->GetComposedDoc ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mDeepestEnterEventTarget->GetComposedDoc() == aOriginalOverTargetInComposedDoc->GetComposedDoc()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 473); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mDeepestEnterEventTarget->GetComposedDoc() == aOriginalOverTargetInComposedDoc->GetComposedDoc()" ")"); do { *((volatile int*)__null) = 473; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | ||||
474 | // If the "mouseover" event target is removed temporarily while we're | ||||
475 | // dispatching "mouseover" and "mouseenter" events and the target gets back | ||||
476 | // under the deepest enter event target, we should restore the "mouseover" | ||||
477 | // target. | ||||
478 | if ((!StaticPrefs:: | ||||
479 | dom_events_mouse_pointer_boundary_keep_enter_targets_after_over_target_removed() && | ||||
480 | !mDeepestEnterEventTarget) || | ||||
481 | (!LastOverEventTargetIsOutEventTarget() && mDeepestEnterEventTarget && | ||||
482 | nsContentUtils::ContentIsFlattenedTreeDescendantOf( | ||||
483 | aOriginalOverTargetInComposedDoc, mDeepestEnterEventTarget))) { | ||||
484 | StoreOverEventTargetAndDeepestEnterEventTarget( | ||||
485 | aOriginalOverTargetInComposedDoc); | ||||
486 | LogModule* const logModule = mType == BoundaryEventType::Mouse | ||||
487 | ? sMouseBoundaryLog | ||||
488 | : sPointerBoundaryLog; | ||||
489 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The \"over\" event target (%p) is restored" , mDeepestEnterEventTarget.get()); } } while (0) | ||||
490 | ("The \"over\" event target (%p) is restored",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The \"over\" event target (%p) is restored" , mDeepestEnterEventTarget.get()); } } while (0) | ||||
491 | mDeepestEnterEventTarget.get()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "The \"over\" event target (%p) is restored" , mDeepestEnterEventTarget.get()); } } while (0); | ||||
492 | } | ||||
493 | } | ||||
494 | |||||
495 | void OverOutElementsWrapper::StoreOverEventTargetAndDeepestEnterEventTarget( | ||||
496 | nsIContent* aOverEventTargetAndDeepestEnterEventTarget) { | ||||
497 | mDeepestEnterEventTarget = aOverEventTargetAndDeepestEnterEventTarget; | ||||
498 | mPendingRemovingOverEventTarget = nullptr; | ||||
499 | mDeepestEnterEventTargetIsOverEventTarget = !!mDeepestEnterEventTarget; | ||||
500 | mLastOverWidget = nullptr; // Set it after dispatching the "over" event. | ||||
501 | } | ||||
502 | |||||
503 | void OverOutElementsWrapper::UpdateDeepestEnterEventTarget( | ||||
504 | nsIContent* aDeepestEnterEventTarget) { | ||||
505 | if (MOZ_UNLIKELY(mDeepestEnterEventTarget == aDeepestEnterEventTarget)(__builtin_expect(!!(mDeepestEnterEventTarget == aDeepestEnterEventTarget ), 0))) { | ||||
506 | return; | ||||
507 | } | ||||
508 | |||||
509 | if (!aDeepestEnterEventTarget) { | ||||
510 | // If the root element is removed, we don't need to dispatch "leave" | ||||
511 | // events on any elements. Therefore, we can forget everything. | ||||
512 | StoreOverEventTargetAndDeepestEnterEventTarget(nullptr); | ||||
513 | return; | ||||
514 | } | ||||
515 | |||||
516 | if (LastOverEventTargetIsOutEventTarget()) { | ||||
517 | MOZ_ASSERT(mDeepestEnterEventTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mDeepestEnterEventTarget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mDeepestEnterEventTarget))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mDeepestEnterEventTarget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 517); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mDeepestEnterEventTarget" ")"); do { *((volatile int*)__null) = 517; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
518 | if (mType == BoundaryEventType::Pointer) { | ||||
519 | // The spec of Pointer Events defines that once the `pointerover` event | ||||
520 | // target is removed from the tree, `pointerout` should not be fired on | ||||
521 | // that and the closest connected ancestor at the target removal should be | ||||
522 | // kept as the deepest `pointerleave` target. All browsers considers the | ||||
523 | // last `pointerover` event target is removed immediately when it occurs. | ||||
524 | // Therefore, we don't need the special handling which we do for the | ||||
525 | // `mouseout` event target below for considering whether we'll dispatch | ||||
526 | // `pointerout` on the last `pointerover` target. | ||||
527 | mPendingRemovingOverEventTarget = nullptr; | ||||
528 | } else { | ||||
529 | // Now, the `mouseout` event target is removed from the DOM at least | ||||
530 | // temporarily. Let's keep storing it for restoring it if it's | ||||
531 | // reconnected into mDeepestEnterEventTarget in a tick because the other | ||||
532 | // browsers do not treat temporary removal of the last `mouseover` target | ||||
533 | // keeps storing it as the next `mouseout` event target. | ||||
534 | MOZ_ASSERT(!mPendingRemovingOverEventTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mPendingRemovingOverEventTarget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mPendingRemovingOverEventTarget ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!mPendingRemovingOverEventTarget", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 534); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mPendingRemovingOverEventTarget" ")"); do { *((volatile int*)__null) = 534; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
535 | MOZ_ASSERT(mDeepestEnterEventTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mDeepestEnterEventTarget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mDeepestEnterEventTarget))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mDeepestEnterEventTarget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 535); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mDeepestEnterEventTarget" ")"); do { *((volatile int*)__null) = 535; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
536 | mPendingRemovingOverEventTarget = | ||||
537 | do_GetWeakReference(mDeepestEnterEventTarget); | ||||
538 | } | ||||
539 | } else { | ||||
540 | MOZ_ASSERT(!mDeepestEnterEventTargetIsOverEventTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mDeepestEnterEventTargetIsOverEventTarget)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!mDeepestEnterEventTargetIsOverEventTarget))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mDeepestEnterEventTargetIsOverEventTarget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 540); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mDeepestEnterEventTargetIsOverEventTarget" ")"); do { *((volatile int*)__null) = 540; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
541 | // If mDeepestEnterEventTarget is not the last "over" event target, we've | ||||
542 | // already done the complicated state managing above. Therefore, we only | ||||
543 | // need to update mDeepestEnterEventTarget in this case. | ||||
544 | } | ||||
545 | mDeepestEnterEventTarget = aDeepestEnterEventTarget; | ||||
546 | mDeepestEnterEventTargetIsOverEventTarget = false; | ||||
547 | // Do not update mLastOverWidget here because it's required to ignore some | ||||
548 | // following pointer events which are fired on widget under different top | ||||
549 | // level widget. | ||||
550 | } | ||||
551 | |||||
552 | /******************************************************************/ | ||||
553 | /* mozilla::EventStateManager */ | ||||
554 | /******************************************************************/ | ||||
555 | |||||
556 | static uint32_t sESMInstanceCount = 0; | ||||
557 | |||||
558 | bool EventStateManager::sNormalLMouseEventInProcess = false; | ||||
559 | int16_t EventStateManager::sCurrentMouseBtn = MouseButton::eNotPressed; | ||||
560 | EventStateManager* EventStateManager::sActiveESM = nullptr; | ||||
561 | EventStateManager* EventStateManager::sCursorSettingManager = nullptr; | ||||
562 | AutoWeakFrame EventStateManager::sLastDragOverFrame = nullptr; | ||||
563 | LayoutDeviceIntPoint EventStateManager::sPreLockScreenPoint = | ||||
564 | LayoutDeviceIntPoint(0, 0); | ||||
565 | LayoutDeviceIntPoint EventStateManager::sLastRefPoint = kInvalidRefPoint; | ||||
566 | CSSIntPoint EventStateManager::sLastScreenPoint = CSSIntPoint(0, 0); | ||||
567 | LayoutDeviceIntPoint EventStateManager::sSynthCenteringPoint = kInvalidRefPoint; | ||||
568 | CSSIntPoint EventStateManager::sLastClientPoint = CSSIntPoint(0, 0); | ||||
569 | nsCOMPtr<nsIContent> EventStateManager::sDragOverContent = nullptr; | ||||
570 | |||||
571 | EventStateManager::WheelPrefs* EventStateManager::WheelPrefs::sInstance = | ||||
572 | nullptr; | ||||
573 | EventStateManager::DeltaAccumulator* | ||||
574 | EventStateManager::DeltaAccumulator::sInstance = nullptr; | ||||
575 | |||||
576 | constexpr const StyleCursorKind kInvalidCursorKind = | ||||
577 | static_cast<StyleCursorKind>(255); | ||||
578 | |||||
579 | EventStateManager::EventStateManager() | ||||
580 | : mLockCursor(kInvalidCursorKind), | ||||
581 | mCurrentTarget(nullptr), | ||||
582 | // init d&d gesture state machine variables | ||||
583 | mGestureDownPoint(0, 0), | ||||
584 | mGestureModifiers(0), | ||||
585 | mGestureDownButtons(0), | ||||
586 | mGestureDownButton(0), | ||||
587 | mPresContext(nullptr), | ||||
588 | mShouldAlwaysUseLineDeltas(false), | ||||
589 | mShouldAlwaysUseLineDeltasInitialized(false), | ||||
590 | mGestureDownInTextControl(false), | ||||
591 | mInTouchDrag(false), | ||||
592 | m_haveShutdown(false) { | ||||
593 | if (sESMInstanceCount == 0) { | ||||
594 | gUserInteractionTimerCallback = new UITimerCallback(); | ||||
595 | if (gUserInteractionTimerCallback) NS_ADDREF(gUserInteractionTimerCallback)(gUserInteractionTimerCallback)->AddRef(); | ||||
596 | UpdateUserActivityTimer(); | ||||
597 | } | ||||
598 | ++sESMInstanceCount; | ||||
599 | } | ||||
600 | |||||
601 | nsresult EventStateManager::UpdateUserActivityTimer() { | ||||
602 | if (!gUserInteractionTimerCallback) return NS_OK; | ||||
603 | |||||
604 | if (!gUserInteractionTimer) { | ||||
605 | gUserInteractionTimer = NS_NewTimer().take(); | ||||
606 | } | ||||
607 | |||||
608 | if (gUserInteractionTimer) { | ||||
609 | gUserInteractionTimer->InitWithCallback( | ||||
610 | gUserInteractionTimerCallback, | ||||
611 | StaticPrefs::dom_events_user_interaction_interval(), | ||||
612 | nsITimer::TYPE_ONE_SHOT); | ||||
613 | } | ||||
614 | return NS_OK; | ||||
615 | } | ||||
616 | |||||
617 | nsresult EventStateManager::Init() { | ||||
618 | nsCOMPtr<nsIObserverService> observerService = | ||||
619 | mozilla::services::GetObserverService(); | ||||
620 | if (!observerService) return NS_ERROR_FAILURE; | ||||
621 | |||||
622 | observerService->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID"xpcom-shutdown", true); | ||||
623 | |||||
624 | return NS_OK; | ||||
625 | } | ||||
626 | |||||
627 | bool EventStateManager::ShouldAlwaysUseLineDeltas() { | ||||
628 | if (MOZ_UNLIKELY(!mShouldAlwaysUseLineDeltasInitialized)(__builtin_expect(!!(!mShouldAlwaysUseLineDeltasInitialized), 0))) { | ||||
629 | mShouldAlwaysUseLineDeltasInitialized = true; | ||||
630 | mShouldAlwaysUseLineDeltas = | ||||
631 | !StaticPrefs::dom_event_wheel_deltaMode_lines_disabled(); | ||||
632 | if (!mShouldAlwaysUseLineDeltas && mDocument) { | ||||
633 | if (nsIPrincipal* principal = | ||||
634 | mDocument->GetPrincipalForPrefBasedHacks()) { | ||||
635 | mShouldAlwaysUseLineDeltas = principal->IsURIInPrefList( | ||||
636 | "dom.event.wheel-deltaMode-lines.always-enabled"); | ||||
637 | } | ||||
638 | } | ||||
639 | } | ||||
640 | return mShouldAlwaysUseLineDeltas; | ||||
641 | } | ||||
642 | |||||
643 | EventStateManager::~EventStateManager() { | ||||
644 | ReleaseCurrentIMEContentObserver(); | ||||
645 | |||||
646 | if (sActiveESM == this) { | ||||
647 | sActiveESM = nullptr; | ||||
648 | } | ||||
649 | |||||
650 | if (StaticPrefs::ui_click_hold_context_menus()) { | ||||
651 | KillClickHoldTimer(); | ||||
652 | } | ||||
653 | |||||
654 | if (sCursorSettingManager == this) { | ||||
655 | sCursorSettingManager = nullptr; | ||||
656 | } | ||||
657 | |||||
658 | --sESMInstanceCount; | ||||
659 | if (sESMInstanceCount == 0) { | ||||
660 | WheelTransaction::Shutdown(); | ||||
661 | if (gUserInteractionTimerCallback) { | ||||
662 | gUserInteractionTimerCallback->Notify(nullptr); | ||||
663 | NS_RELEASE(gUserInteractionTimerCallback)do { (gUserInteractionTimerCallback)->Release(); (gUserInteractionTimerCallback ) = 0; } while (0); | ||||
664 | } | ||||
665 | if (gUserInteractionTimer) { | ||||
666 | gUserInteractionTimer->Cancel(); | ||||
667 | NS_RELEASE(gUserInteractionTimer)do { (gUserInteractionTimer)->Release(); (gUserInteractionTimer ) = 0; } while (0); | ||||
668 | } | ||||
669 | WheelPrefs::Shutdown(); | ||||
670 | DeltaAccumulator::Shutdown(); | ||||
671 | } | ||||
672 | |||||
673 | if (sDragOverContent && sDragOverContent->OwnerDoc() == mDocument) { | ||||
674 | sDragOverContent = nullptr; | ||||
675 | } | ||||
676 | |||||
677 | if (!m_haveShutdown) { | ||||
678 | Shutdown(); | ||||
679 | |||||
680 | // Don't remove from Observer service in Shutdown because Shutdown also | ||||
681 | // gets called from xpcom shutdown observer. And we don't want to remove | ||||
682 | // from the service in that case. | ||||
683 | |||||
684 | nsCOMPtr<nsIObserverService> observerService = | ||||
685 | mozilla::services::GetObserverService(); | ||||
686 | if (observerService) { | ||||
687 | observerService->RemoveObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID"xpcom-shutdown"); | ||||
688 | } | ||||
689 | } | ||||
690 | } | ||||
691 | |||||
692 | nsresult EventStateManager::Shutdown() { | ||||
693 | m_haveShutdown = true; | ||||
694 | return NS_OK; | ||||
695 | } | ||||
696 | |||||
697 | NS_IMETHODIMPnsresult | ||||
698 | EventStateManager::Observe(nsISupports* aSubject, const char* aTopic, | ||||
699 | const char16_t* someData) { | ||||
700 | if (!nsCRT::strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID"xpcom-shutdown")) { | ||||
701 | Shutdown(); | ||||
702 | } | ||||
703 | |||||
704 | return NS_OK; | ||||
705 | } | ||||
706 | |||||
707 | NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(EventStateManager)nsresult EventStateManager::QueryInterface(const nsIID& aIID , void** aInstancePtr) { do { if (!(aInstancePtr)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "QueryInterface requires a non-NULL destination!" , "aInstancePtr", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 707); MOZ_PretendNoReturn(); } } while (0); nsISupports* foundInterface ; if (TopThreeWordsEquals( aIID, (nsXPCOMCycleCollectionParticipant ::COMTypeInfo<nsXPCOMCycleCollectionParticipant, void>:: kIID), (nsCycleCollectionISupports::COMTypeInfo<nsCycleCollectionISupports , void>::kIID)) && (LowWordEquals(aIID, (nsXPCOMCycleCollectionParticipant ::COMTypeInfo<nsXPCOMCycleCollectionParticipant, void>:: kIID)) || LowWordEquals(aIID, (nsCycleCollectionISupports::COMTypeInfo <nsCycleCollectionISupports, void>::kIID)))) { if (LowWordEquals (aIID, (nsXPCOMCycleCollectionParticipant::COMTypeInfo<nsXPCOMCycleCollectionParticipant , void>::kIID))) { *aInstancePtr = EventStateManager::cycleCollection ::GetParticipant(); return NS_OK; } if (LowWordEquals(aIID, ( nsCycleCollectionISupports::COMTypeInfo<nsCycleCollectionISupports , void>::kIID))) { *aInstancePtr = EventStateManager::cycleCollection ::Upcast(this); return NS_OK; } foundInterface = nullptr; } else | ||||
708 | NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIObserver)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsISupports>)) foundInterface = static_cast <nsISupports*>(static_cast<nsIObserver*>(this)); else | ||||
709 | NS_INTERFACE_MAP_ENTRY(nsIObserver)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIObserver>)) foundInterface = static_cast <nsIObserver*>(this); else | ||||
710 | NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsISupportsWeakReference>)) foundInterface = static_cast<nsISupportsWeakReference*>(this); else | ||||
711 | NS_INTERFACE_MAP_ENDfoundInterface = 0; nsresult status; if (!foundInterface) { do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aIID.Equals((nsISupports::COMTypeInfo<nsISupports , void>::kIID)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aIID.Equals((nsISupports::COMTypeInfo <nsISupports, void>::kIID))))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("!aIID.Equals((nsISupports::COMTypeInfo<nsISupports, void>::kIID))" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 711); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aIID.Equals((nsISupports::COMTypeInfo<nsISupports, void>::kIID))" ")"); do { *((volatile int*)__null) = 711; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); status = NS_NOINTERFACE ; } else { (foundInterface)->AddRef(); status = NS_OK; } * aInstancePtr = foundInterface; return status; } | ||||
712 | |||||
713 | NS_IMPL_CYCLE_COLLECTING_ADDREF(EventStateManager)MozExternalRefCountType EventStateManager::AddRef(void) { static_assert (!std::is_destructible_v<EventStateManager>, "Reference-counted class " "EventStateManager" " should not have a public destructor. " "Make this class's destructor non-public"); do { static_assert ( mozilla::detail::AssertionConditionType<decltype(int32_t (mRefCnt) >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) >= 0" " (" "illegal refcnt" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 713); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 713; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("EventStateManager" " not thread-safe"); nsISupports* base = EventStateManager:: cycleCollection::Upcast(this); nsrefcnt count = mRefCnt.incr( base); NS_LogAddRef((this), (count), ("EventStateManager"), ( uint32_t)(sizeof(*this))); return count; } | ||||
714 | NS_IMPL_CYCLE_COLLECTING_RELEASE(EventStateManager)MozExternalRefCountType EventStateManager::Release(void) { do { static_assert( mozilla::detail::AssertionConditionType< decltype(int32_t(mRefCnt) > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(int32_t(mRefCnt) > 0))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("int32_t(mRefCnt) > 0" " (" "dup release" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 714); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 714 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("EventStateManager" " not thread-safe" ); nsISupports* base = EventStateManager::cycleCollection::Upcast (this); nsrefcnt count = mRefCnt.decr(base); NS_LogRelease((this ), (count), ("EventStateManager")); return count; } void EventStateManager ::DeleteCycleCollectable(void) { delete (this); } | ||||
715 | |||||
716 | NS_IMPL_CYCLE_COLLECTION_WEAK(EventStateManager, mCurrentTargetContent,EventStateManager::cycleCollection EventStateManager::_cycleCollectorGlobal ; void EventStateManager::cycleCollection::Unlink(void* p) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); ImplCycleCollectionUnlink (tmp->mCurrentTargetContent); ImplCycleCollectionUnlink(tmp ->mGestureDownContent); ImplCycleCollectionUnlink(tmp-> mGestureDownFrameOwner); ImplCycleCollectionUnlink(tmp->mLastLeftMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastRightMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mActiveContent ); ImplCycleCollectionUnlink(tmp->mHoverContent); ImplCycleCollectionUnlink (tmp->mURLTargetContent); ImplCycleCollectionUnlink(tmp-> mPopoverPointerDownTarget); ImplCycleCollectionUnlink(tmp-> mMouseEnterLeaveHelper); ImplCycleCollectionUnlink(tmp->mPointersEnterLeaveHelper ); ImplCycleCollectionUnlink(tmp->mDocument); ImplCycleCollectionUnlink (tmp->mIMEContentObserver); ImplCycleCollectionUnlink(tmp-> mAccessKeys); tmp->ClearWeakReferences(); (void)tmp; } nsresult EventStateManager::cycleCollection::TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); cb .DescribeRefCountedNode(tmp->mRefCnt.get(), "EventStateManager" ); ImplCycleCollectionTraverse(cb, tmp->mCurrentTargetContent , "mCurrentTargetContent", 0); ImplCycleCollectionTraverse(cb , tmp->mGestureDownContent, "mGestureDownContent", 0); ImplCycleCollectionTraverse (cb, tmp->mGestureDownFrameOwner, "mGestureDownFrameOwner" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastLeftMouseDownInfo .mLastMouseDownContent, "mLastLeftMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent, "mLastMiddleMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastRightMouseDownInfo .mLastMouseDownContent, "mLastRightMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveContent, "mActiveContent", 0); ImplCycleCollectionTraverse(cb, tmp-> mHoverContent, "mHoverContent", 0); ImplCycleCollectionTraverse (cb, tmp->mURLTargetContent, "mURLTargetContent", 0); ImplCycleCollectionTraverse (cb, tmp->mPopoverPointerDownTarget, "mPopoverPointerDownTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mMouseEnterLeaveHelper , "mMouseEnterLeaveHelper", 0); ImplCycleCollectionTraverse(cb , tmp->mPointersEnterLeaveHelper, "mPointersEnterLeaveHelper" , 0); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mIMEContentObserver , "mIMEContentObserver", 0); ImplCycleCollectionTraverse(cb, tmp ->mAccessKeys, "mAccessKeys", 0); (void)tmp; return NS_OK; } | ||||
717 | mGestureDownContent, mGestureDownFrameOwner,EventStateManager::cycleCollection EventStateManager::_cycleCollectorGlobal ; void EventStateManager::cycleCollection::Unlink(void* p) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); ImplCycleCollectionUnlink (tmp->mCurrentTargetContent); ImplCycleCollectionUnlink(tmp ->mGestureDownContent); ImplCycleCollectionUnlink(tmp-> mGestureDownFrameOwner); ImplCycleCollectionUnlink(tmp->mLastLeftMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastRightMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mActiveContent ); ImplCycleCollectionUnlink(tmp->mHoverContent); ImplCycleCollectionUnlink (tmp->mURLTargetContent); ImplCycleCollectionUnlink(tmp-> mPopoverPointerDownTarget); ImplCycleCollectionUnlink(tmp-> mMouseEnterLeaveHelper); ImplCycleCollectionUnlink(tmp->mPointersEnterLeaveHelper ); ImplCycleCollectionUnlink(tmp->mDocument); ImplCycleCollectionUnlink (tmp->mIMEContentObserver); ImplCycleCollectionUnlink(tmp-> mAccessKeys); tmp->ClearWeakReferences(); (void)tmp; } nsresult EventStateManager::cycleCollection::TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); cb .DescribeRefCountedNode(tmp->mRefCnt.get(), "EventStateManager" ); ImplCycleCollectionTraverse(cb, tmp->mCurrentTargetContent , "mCurrentTargetContent", 0); ImplCycleCollectionTraverse(cb , tmp->mGestureDownContent, "mGestureDownContent", 0); ImplCycleCollectionTraverse (cb, tmp->mGestureDownFrameOwner, "mGestureDownFrameOwner" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastLeftMouseDownInfo .mLastMouseDownContent, "mLastLeftMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent, "mLastMiddleMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastRightMouseDownInfo .mLastMouseDownContent, "mLastRightMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveContent, "mActiveContent", 0); ImplCycleCollectionTraverse(cb, tmp-> mHoverContent, "mHoverContent", 0); ImplCycleCollectionTraverse (cb, tmp->mURLTargetContent, "mURLTargetContent", 0); ImplCycleCollectionTraverse (cb, tmp->mPopoverPointerDownTarget, "mPopoverPointerDownTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mMouseEnterLeaveHelper , "mMouseEnterLeaveHelper", 0); ImplCycleCollectionTraverse(cb , tmp->mPointersEnterLeaveHelper, "mPointersEnterLeaveHelper" , 0); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mIMEContentObserver , "mIMEContentObserver", 0); ImplCycleCollectionTraverse(cb, tmp ->mAccessKeys, "mAccessKeys", 0); (void)tmp; return NS_OK; } | ||||
718 | mLastLeftMouseDownInfo.mLastMouseDownContent,EventStateManager::cycleCollection EventStateManager::_cycleCollectorGlobal ; void EventStateManager::cycleCollection::Unlink(void* p) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); ImplCycleCollectionUnlink (tmp->mCurrentTargetContent); ImplCycleCollectionUnlink(tmp ->mGestureDownContent); ImplCycleCollectionUnlink(tmp-> mGestureDownFrameOwner); ImplCycleCollectionUnlink(tmp->mLastLeftMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastRightMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mActiveContent ); ImplCycleCollectionUnlink(tmp->mHoverContent); ImplCycleCollectionUnlink (tmp->mURLTargetContent); ImplCycleCollectionUnlink(tmp-> mPopoverPointerDownTarget); ImplCycleCollectionUnlink(tmp-> mMouseEnterLeaveHelper); ImplCycleCollectionUnlink(tmp->mPointersEnterLeaveHelper ); ImplCycleCollectionUnlink(tmp->mDocument); ImplCycleCollectionUnlink (tmp->mIMEContentObserver); ImplCycleCollectionUnlink(tmp-> mAccessKeys); tmp->ClearWeakReferences(); (void)tmp; } nsresult EventStateManager::cycleCollection::TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); cb .DescribeRefCountedNode(tmp->mRefCnt.get(), "EventStateManager" ); ImplCycleCollectionTraverse(cb, tmp->mCurrentTargetContent , "mCurrentTargetContent", 0); ImplCycleCollectionTraverse(cb , tmp->mGestureDownContent, "mGestureDownContent", 0); ImplCycleCollectionTraverse (cb, tmp->mGestureDownFrameOwner, "mGestureDownFrameOwner" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastLeftMouseDownInfo .mLastMouseDownContent, "mLastLeftMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent, "mLastMiddleMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastRightMouseDownInfo .mLastMouseDownContent, "mLastRightMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveContent, "mActiveContent", 0); ImplCycleCollectionTraverse(cb, tmp-> mHoverContent, "mHoverContent", 0); ImplCycleCollectionTraverse (cb, tmp->mURLTargetContent, "mURLTargetContent", 0); ImplCycleCollectionTraverse (cb, tmp->mPopoverPointerDownTarget, "mPopoverPointerDownTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mMouseEnterLeaveHelper , "mMouseEnterLeaveHelper", 0); ImplCycleCollectionTraverse(cb , tmp->mPointersEnterLeaveHelper, "mPointersEnterLeaveHelper" , 0); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mIMEContentObserver , "mIMEContentObserver", 0); ImplCycleCollectionTraverse(cb, tmp ->mAccessKeys, "mAccessKeys", 0); (void)tmp; return NS_OK; } | ||||
719 | mLastMiddleMouseDownInfo.mLastMouseDownContent,EventStateManager::cycleCollection EventStateManager::_cycleCollectorGlobal ; void EventStateManager::cycleCollection::Unlink(void* p) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); ImplCycleCollectionUnlink (tmp->mCurrentTargetContent); ImplCycleCollectionUnlink(tmp ->mGestureDownContent); ImplCycleCollectionUnlink(tmp-> mGestureDownFrameOwner); ImplCycleCollectionUnlink(tmp->mLastLeftMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastRightMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mActiveContent ); ImplCycleCollectionUnlink(tmp->mHoverContent); ImplCycleCollectionUnlink (tmp->mURLTargetContent); ImplCycleCollectionUnlink(tmp-> mPopoverPointerDownTarget); ImplCycleCollectionUnlink(tmp-> mMouseEnterLeaveHelper); ImplCycleCollectionUnlink(tmp->mPointersEnterLeaveHelper ); ImplCycleCollectionUnlink(tmp->mDocument); ImplCycleCollectionUnlink (tmp->mIMEContentObserver); ImplCycleCollectionUnlink(tmp-> mAccessKeys); tmp->ClearWeakReferences(); (void)tmp; } nsresult EventStateManager::cycleCollection::TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); cb .DescribeRefCountedNode(tmp->mRefCnt.get(), "EventStateManager" ); ImplCycleCollectionTraverse(cb, tmp->mCurrentTargetContent , "mCurrentTargetContent", 0); ImplCycleCollectionTraverse(cb , tmp->mGestureDownContent, "mGestureDownContent", 0); ImplCycleCollectionTraverse (cb, tmp->mGestureDownFrameOwner, "mGestureDownFrameOwner" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastLeftMouseDownInfo .mLastMouseDownContent, "mLastLeftMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent, "mLastMiddleMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastRightMouseDownInfo .mLastMouseDownContent, "mLastRightMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveContent, "mActiveContent", 0); ImplCycleCollectionTraverse(cb, tmp-> mHoverContent, "mHoverContent", 0); ImplCycleCollectionTraverse (cb, tmp->mURLTargetContent, "mURLTargetContent", 0); ImplCycleCollectionTraverse (cb, tmp->mPopoverPointerDownTarget, "mPopoverPointerDownTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mMouseEnterLeaveHelper , "mMouseEnterLeaveHelper", 0); ImplCycleCollectionTraverse(cb , tmp->mPointersEnterLeaveHelper, "mPointersEnterLeaveHelper" , 0); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mIMEContentObserver , "mIMEContentObserver", 0); ImplCycleCollectionTraverse(cb, tmp ->mAccessKeys, "mAccessKeys", 0); (void)tmp; return NS_OK; } | ||||
720 | mLastRightMouseDownInfo.mLastMouseDownContent,EventStateManager::cycleCollection EventStateManager::_cycleCollectorGlobal ; void EventStateManager::cycleCollection::Unlink(void* p) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); ImplCycleCollectionUnlink (tmp->mCurrentTargetContent); ImplCycleCollectionUnlink(tmp ->mGestureDownContent); ImplCycleCollectionUnlink(tmp-> mGestureDownFrameOwner); ImplCycleCollectionUnlink(tmp->mLastLeftMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastRightMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mActiveContent ); ImplCycleCollectionUnlink(tmp->mHoverContent); ImplCycleCollectionUnlink (tmp->mURLTargetContent); ImplCycleCollectionUnlink(tmp-> mPopoverPointerDownTarget); ImplCycleCollectionUnlink(tmp-> mMouseEnterLeaveHelper); ImplCycleCollectionUnlink(tmp->mPointersEnterLeaveHelper ); ImplCycleCollectionUnlink(tmp->mDocument); ImplCycleCollectionUnlink (tmp->mIMEContentObserver); ImplCycleCollectionUnlink(tmp-> mAccessKeys); tmp->ClearWeakReferences(); (void)tmp; } nsresult EventStateManager::cycleCollection::TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); cb .DescribeRefCountedNode(tmp->mRefCnt.get(), "EventStateManager" ); ImplCycleCollectionTraverse(cb, tmp->mCurrentTargetContent , "mCurrentTargetContent", 0); ImplCycleCollectionTraverse(cb , tmp->mGestureDownContent, "mGestureDownContent", 0); ImplCycleCollectionTraverse (cb, tmp->mGestureDownFrameOwner, "mGestureDownFrameOwner" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastLeftMouseDownInfo .mLastMouseDownContent, "mLastLeftMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent, "mLastMiddleMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastRightMouseDownInfo .mLastMouseDownContent, "mLastRightMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveContent, "mActiveContent", 0); ImplCycleCollectionTraverse(cb, tmp-> mHoverContent, "mHoverContent", 0); ImplCycleCollectionTraverse (cb, tmp->mURLTargetContent, "mURLTargetContent", 0); ImplCycleCollectionTraverse (cb, tmp->mPopoverPointerDownTarget, "mPopoverPointerDownTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mMouseEnterLeaveHelper , "mMouseEnterLeaveHelper", 0); ImplCycleCollectionTraverse(cb , tmp->mPointersEnterLeaveHelper, "mPointersEnterLeaveHelper" , 0); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mIMEContentObserver , "mIMEContentObserver", 0); ImplCycleCollectionTraverse(cb, tmp ->mAccessKeys, "mAccessKeys", 0); (void)tmp; return NS_OK; } | ||||
721 | mActiveContent, mHoverContent, mURLTargetContent,EventStateManager::cycleCollection EventStateManager::_cycleCollectorGlobal ; void EventStateManager::cycleCollection::Unlink(void* p) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); ImplCycleCollectionUnlink (tmp->mCurrentTargetContent); ImplCycleCollectionUnlink(tmp ->mGestureDownContent); ImplCycleCollectionUnlink(tmp-> mGestureDownFrameOwner); ImplCycleCollectionUnlink(tmp->mLastLeftMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastRightMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mActiveContent ); ImplCycleCollectionUnlink(tmp->mHoverContent); ImplCycleCollectionUnlink (tmp->mURLTargetContent); ImplCycleCollectionUnlink(tmp-> mPopoverPointerDownTarget); ImplCycleCollectionUnlink(tmp-> mMouseEnterLeaveHelper); ImplCycleCollectionUnlink(tmp->mPointersEnterLeaveHelper ); ImplCycleCollectionUnlink(tmp->mDocument); ImplCycleCollectionUnlink (tmp->mIMEContentObserver); ImplCycleCollectionUnlink(tmp-> mAccessKeys); tmp->ClearWeakReferences(); (void)tmp; } nsresult EventStateManager::cycleCollection::TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); cb .DescribeRefCountedNode(tmp->mRefCnt.get(), "EventStateManager" ); ImplCycleCollectionTraverse(cb, tmp->mCurrentTargetContent , "mCurrentTargetContent", 0); ImplCycleCollectionTraverse(cb , tmp->mGestureDownContent, "mGestureDownContent", 0); ImplCycleCollectionTraverse (cb, tmp->mGestureDownFrameOwner, "mGestureDownFrameOwner" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastLeftMouseDownInfo .mLastMouseDownContent, "mLastLeftMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent, "mLastMiddleMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastRightMouseDownInfo .mLastMouseDownContent, "mLastRightMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveContent, "mActiveContent", 0); ImplCycleCollectionTraverse(cb, tmp-> mHoverContent, "mHoverContent", 0); ImplCycleCollectionTraverse (cb, tmp->mURLTargetContent, "mURLTargetContent", 0); ImplCycleCollectionTraverse (cb, tmp->mPopoverPointerDownTarget, "mPopoverPointerDownTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mMouseEnterLeaveHelper , "mMouseEnterLeaveHelper", 0); ImplCycleCollectionTraverse(cb , tmp->mPointersEnterLeaveHelper, "mPointersEnterLeaveHelper" , 0); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mIMEContentObserver , "mIMEContentObserver", 0); ImplCycleCollectionTraverse(cb, tmp ->mAccessKeys, "mAccessKeys", 0); (void)tmp; return NS_OK; } | ||||
722 | mPopoverPointerDownTarget, mMouseEnterLeaveHelper,EventStateManager::cycleCollection EventStateManager::_cycleCollectorGlobal ; void EventStateManager::cycleCollection::Unlink(void* p) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); ImplCycleCollectionUnlink (tmp->mCurrentTargetContent); ImplCycleCollectionUnlink(tmp ->mGestureDownContent); ImplCycleCollectionUnlink(tmp-> mGestureDownFrameOwner); ImplCycleCollectionUnlink(tmp->mLastLeftMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastRightMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mActiveContent ); ImplCycleCollectionUnlink(tmp->mHoverContent); ImplCycleCollectionUnlink (tmp->mURLTargetContent); ImplCycleCollectionUnlink(tmp-> mPopoverPointerDownTarget); ImplCycleCollectionUnlink(tmp-> mMouseEnterLeaveHelper); ImplCycleCollectionUnlink(tmp->mPointersEnterLeaveHelper ); ImplCycleCollectionUnlink(tmp->mDocument); ImplCycleCollectionUnlink (tmp->mIMEContentObserver); ImplCycleCollectionUnlink(tmp-> mAccessKeys); tmp->ClearWeakReferences(); (void)tmp; } nsresult EventStateManager::cycleCollection::TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); cb .DescribeRefCountedNode(tmp->mRefCnt.get(), "EventStateManager" ); ImplCycleCollectionTraverse(cb, tmp->mCurrentTargetContent , "mCurrentTargetContent", 0); ImplCycleCollectionTraverse(cb , tmp->mGestureDownContent, "mGestureDownContent", 0); ImplCycleCollectionTraverse (cb, tmp->mGestureDownFrameOwner, "mGestureDownFrameOwner" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastLeftMouseDownInfo .mLastMouseDownContent, "mLastLeftMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent, "mLastMiddleMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastRightMouseDownInfo .mLastMouseDownContent, "mLastRightMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveContent, "mActiveContent", 0); ImplCycleCollectionTraverse(cb, tmp-> mHoverContent, "mHoverContent", 0); ImplCycleCollectionTraverse (cb, tmp->mURLTargetContent, "mURLTargetContent", 0); ImplCycleCollectionTraverse (cb, tmp->mPopoverPointerDownTarget, "mPopoverPointerDownTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mMouseEnterLeaveHelper , "mMouseEnterLeaveHelper", 0); ImplCycleCollectionTraverse(cb , tmp->mPointersEnterLeaveHelper, "mPointersEnterLeaveHelper" , 0); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mIMEContentObserver , "mIMEContentObserver", 0); ImplCycleCollectionTraverse(cb, tmp ->mAccessKeys, "mAccessKeys", 0); (void)tmp; return NS_OK; } | ||||
723 | mPointersEnterLeaveHelper, mDocument,EventStateManager::cycleCollection EventStateManager::_cycleCollectorGlobal ; void EventStateManager::cycleCollection::Unlink(void* p) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); ImplCycleCollectionUnlink (tmp->mCurrentTargetContent); ImplCycleCollectionUnlink(tmp ->mGestureDownContent); ImplCycleCollectionUnlink(tmp-> mGestureDownFrameOwner); ImplCycleCollectionUnlink(tmp->mLastLeftMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastRightMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mActiveContent ); ImplCycleCollectionUnlink(tmp->mHoverContent); ImplCycleCollectionUnlink (tmp->mURLTargetContent); ImplCycleCollectionUnlink(tmp-> mPopoverPointerDownTarget); ImplCycleCollectionUnlink(tmp-> mMouseEnterLeaveHelper); ImplCycleCollectionUnlink(tmp->mPointersEnterLeaveHelper ); ImplCycleCollectionUnlink(tmp->mDocument); ImplCycleCollectionUnlink (tmp->mIMEContentObserver); ImplCycleCollectionUnlink(tmp-> mAccessKeys); tmp->ClearWeakReferences(); (void)tmp; } nsresult EventStateManager::cycleCollection::TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); cb .DescribeRefCountedNode(tmp->mRefCnt.get(), "EventStateManager" ); ImplCycleCollectionTraverse(cb, tmp->mCurrentTargetContent , "mCurrentTargetContent", 0); ImplCycleCollectionTraverse(cb , tmp->mGestureDownContent, "mGestureDownContent", 0); ImplCycleCollectionTraverse (cb, tmp->mGestureDownFrameOwner, "mGestureDownFrameOwner" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastLeftMouseDownInfo .mLastMouseDownContent, "mLastLeftMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent, "mLastMiddleMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastRightMouseDownInfo .mLastMouseDownContent, "mLastRightMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveContent, "mActiveContent", 0); ImplCycleCollectionTraverse(cb, tmp-> mHoverContent, "mHoverContent", 0); ImplCycleCollectionTraverse (cb, tmp->mURLTargetContent, "mURLTargetContent", 0); ImplCycleCollectionTraverse (cb, tmp->mPopoverPointerDownTarget, "mPopoverPointerDownTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mMouseEnterLeaveHelper , "mMouseEnterLeaveHelper", 0); ImplCycleCollectionTraverse(cb , tmp->mPointersEnterLeaveHelper, "mPointersEnterLeaveHelper" , 0); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mIMEContentObserver , "mIMEContentObserver", 0); ImplCycleCollectionTraverse(cb, tmp ->mAccessKeys, "mAccessKeys", 0); (void)tmp; return NS_OK; } | ||||
724 | mIMEContentObserver, mAccessKeys)EventStateManager::cycleCollection EventStateManager::_cycleCollectorGlobal ; void EventStateManager::cycleCollection::Unlink(void* p) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); ImplCycleCollectionUnlink (tmp->mCurrentTargetContent); ImplCycleCollectionUnlink(tmp ->mGestureDownContent); ImplCycleCollectionUnlink(tmp-> mGestureDownFrameOwner); ImplCycleCollectionUnlink(tmp->mLastLeftMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mLastRightMouseDownInfo .mLastMouseDownContent); ImplCycleCollectionUnlink(tmp->mActiveContent ); ImplCycleCollectionUnlink(tmp->mHoverContent); ImplCycleCollectionUnlink (tmp->mURLTargetContent); ImplCycleCollectionUnlink(tmp-> mPopoverPointerDownTarget); ImplCycleCollectionUnlink(tmp-> mMouseEnterLeaveHelper); ImplCycleCollectionUnlink(tmp->mPointersEnterLeaveHelper ); ImplCycleCollectionUnlink(tmp->mDocument); ImplCycleCollectionUnlink (tmp->mIMEContentObserver); ImplCycleCollectionUnlink(tmp-> mAccessKeys); tmp->ClearWeakReferences(); (void)tmp; } nsresult EventStateManager::cycleCollection::TraverseNative( void* p, nsCycleCollectionTraversalCallback& cb) { EventStateManager * tmp = DowncastCCParticipant<EventStateManager>(p); cb .DescribeRefCountedNode(tmp->mRefCnt.get(), "EventStateManager" ); ImplCycleCollectionTraverse(cb, tmp->mCurrentTargetContent , "mCurrentTargetContent", 0); ImplCycleCollectionTraverse(cb , tmp->mGestureDownContent, "mGestureDownContent", 0); ImplCycleCollectionTraverse (cb, tmp->mGestureDownFrameOwner, "mGestureDownFrameOwner" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastLeftMouseDownInfo .mLastMouseDownContent, "mLastLeftMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastMiddleMouseDownInfo .mLastMouseDownContent, "mLastMiddleMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mLastRightMouseDownInfo .mLastMouseDownContent, "mLastRightMouseDownInfo.mLastMouseDownContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveContent, "mActiveContent", 0); ImplCycleCollectionTraverse(cb, tmp-> mHoverContent, "mHoverContent", 0); ImplCycleCollectionTraverse (cb, tmp->mURLTargetContent, "mURLTargetContent", 0); ImplCycleCollectionTraverse (cb, tmp->mPopoverPointerDownTarget, "mPopoverPointerDownTarget" , 0); ImplCycleCollectionTraverse(cb, tmp->mMouseEnterLeaveHelper , "mMouseEnterLeaveHelper", 0); ImplCycleCollectionTraverse(cb , tmp->mPointersEnterLeaveHelper, "mPointersEnterLeaveHelper" , 0); ImplCycleCollectionTraverse(cb, tmp->mDocument, "mDocument" , 0); ImplCycleCollectionTraverse(cb, tmp->mIMEContentObserver , "mIMEContentObserver", 0); ImplCycleCollectionTraverse(cb, tmp ->mAccessKeys, "mAccessKeys", 0); (void)tmp; return NS_OK; } | ||||
725 | |||||
726 | void EventStateManager::ReleaseCurrentIMEContentObserver() { | ||||
727 | if (mIMEContentObserver) { | ||||
728 | mIMEContentObserver->DisconnectFromEventStateManager(); | ||||
729 | } | ||||
730 | mIMEContentObserver = nullptr; | ||||
731 | } | ||||
732 | |||||
733 | void EventStateManager::OnStartToObserveContent( | ||||
734 | IMEContentObserver* aIMEContentObserver) { | ||||
735 | if (mIMEContentObserver == aIMEContentObserver) { | ||||
736 | return; | ||||
737 | } | ||||
738 | ReleaseCurrentIMEContentObserver(); | ||||
739 | mIMEContentObserver = aIMEContentObserver; | ||||
740 | } | ||||
741 | |||||
742 | void EventStateManager::OnStopObservingContent( | ||||
743 | IMEContentObserver* aIMEContentObserver) { | ||||
744 | aIMEContentObserver->DisconnectFromEventStateManager(); | ||||
745 | NS_ENSURE_TRUE_VOID(mIMEContentObserver == aIMEContentObserver)do { if ((__builtin_expect(!!(!(mIMEContentObserver == aIMEContentObserver )), 0))) { NS_DebugBreak(NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mIMEContentObserver == aIMEContentObserver" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 745); return; } } while (false); | ||||
746 | mIMEContentObserver = nullptr; | ||||
747 | } | ||||
748 | |||||
749 | void EventStateManager::TryToFlushPendingNotificationsToIME() { | ||||
750 | if (mIMEContentObserver) { | ||||
751 | mIMEContentObserver->TryToFlushPendingNotifications(true); | ||||
752 | } | ||||
753 | } | ||||
754 | |||||
755 | static bool IsMessageMouseUserActivity(EventMessage aMessage) { | ||||
756 | return aMessage == eMouseMove || aMessage == eMouseUp || | ||||
757 | aMessage == eMouseDown || aMessage == ePointerAuxClick || | ||||
758 | aMessage == eMouseDoubleClick || aMessage == ePointerClick || | ||||
759 | aMessage == eMouseActivate || aMessage == eMouseLongTap; | ||||
760 | } | ||||
761 | |||||
762 | static bool IsMessageGamepadUserActivity(EventMessage aMessage) { | ||||
763 | return aMessage == eGamepadButtonDown || aMessage == eGamepadButtonUp || | ||||
764 | aMessage == eGamepadAxisMove; | ||||
765 | } | ||||
766 | |||||
767 | // static | ||||
768 | bool EventStateManager::IsKeyboardEventUserActivity(WidgetEvent* aEvent) { | ||||
769 | // We ignore things that shouldn't cause popups, but also things that look | ||||
770 | // like shortcut presses. In some obscure cases these may actually be | ||||
771 | // website input, but any meaningful website will have other input anyway, | ||||
772 | // and we can't very well tell whether shortcut input was supposed to be | ||||
773 | // directed at chrome or the document. | ||||
774 | |||||
775 | WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent(); | ||||
776 | // Access keys should be treated as page interaction. | ||||
777 | if (keyEvent->ModifiersMatchWithAccessKey(AccessKeyType::eContent)) { | ||||
778 | return true; | ||||
779 | } | ||||
780 | if (!keyEvent->CanTreatAsUserInput() || keyEvent->IsControl() || | ||||
781 | keyEvent->IsMeta() || keyEvent->IsAlt()) { | ||||
782 | return false; | ||||
783 | } | ||||
784 | // Deal with function keys: | ||||
785 | switch (keyEvent->mKeyNameIndex) { | ||||
786 | case KEY_NAME_INDEX_F1: | ||||
787 | case KEY_NAME_INDEX_F2: | ||||
788 | case KEY_NAME_INDEX_F3: | ||||
789 | case KEY_NAME_INDEX_F4: | ||||
790 | case KEY_NAME_INDEX_F5: | ||||
791 | case KEY_NAME_INDEX_F6: | ||||
792 | case KEY_NAME_INDEX_F7: | ||||
793 | case KEY_NAME_INDEX_F8: | ||||
794 | case KEY_NAME_INDEX_F9: | ||||
795 | case KEY_NAME_INDEX_F10: | ||||
796 | case KEY_NAME_INDEX_F11: | ||||
797 | case KEY_NAME_INDEX_F12: | ||||
798 | case KEY_NAME_INDEX_F13: | ||||
799 | case KEY_NAME_INDEX_F14: | ||||
800 | case KEY_NAME_INDEX_F15: | ||||
801 | case KEY_NAME_INDEX_F16: | ||||
802 | case KEY_NAME_INDEX_F17: | ||||
803 | case KEY_NAME_INDEX_F18: | ||||
804 | case KEY_NAME_INDEX_F19: | ||||
805 | case KEY_NAME_INDEX_F20: | ||||
806 | case KEY_NAME_INDEX_F21: | ||||
807 | case KEY_NAME_INDEX_F22: | ||||
808 | case KEY_NAME_INDEX_F23: | ||||
809 | case KEY_NAME_INDEX_F24: | ||||
810 | return false; | ||||
811 | default: | ||||
812 | return true; | ||||
813 | } | ||||
814 | } | ||||
815 | |||||
816 | static void OnTypingInteractionEnded() { | ||||
817 | // We don't consider a single keystroke to be typing. | ||||
818 | if (gTypingInteractionKeyPresses > 1) { | ||||
819 | gTypingInteraction.mInteractionCount += gTypingInteractionKeyPresses; | ||||
820 | gTypingInteraction.mInteractionTimeInMilliseconds += static_cast<uint32_t>( | ||||
821 | std::ceil((gTypingEndTime - gTypingStartTime).ToMilliseconds())); | ||||
822 | } | ||||
823 | |||||
824 | gTypingInteractionKeyPresses = 0; | ||||
825 | gTypingStartTime = TimeStamp(); | ||||
826 | gTypingEndTime = TimeStamp(); | ||||
827 | } | ||||
828 | |||||
829 | static void HandleKeyUpInteraction(WidgetKeyboardEvent* aKeyEvent) { | ||||
830 | if (EventStateManager::IsKeyboardEventUserActivity(aKeyEvent)) { | ||||
831 | TimeStamp now = TimeStamp::Now(); | ||||
832 | if (gTypingEndTime.IsNull()) { | ||||
833 | gTypingEndTime = now; | ||||
834 | } | ||||
835 | TimeDuration delay = now - gTypingEndTime; | ||||
836 | // Has it been too long since the last keystroke to be considered typing? | ||||
837 | if (gTypingInteractionKeyPresses > 0 && | ||||
838 | delay > | ||||
839 | TimeDuration::FromMilliseconds( | ||||
840 | StaticPrefs::browser_places_interactions_typing_timeout_ms())) { | ||||
841 | OnTypingInteractionEnded(); | ||||
842 | } | ||||
843 | gTypingInteractionKeyPresses++; | ||||
844 | if (gTypingStartTime.IsNull()) { | ||||
845 | gTypingStartTime = now; | ||||
846 | } | ||||
847 | gTypingEndTime = now; | ||||
848 | } | ||||
849 | } | ||||
850 | |||||
851 | nsresult EventStateManager::PreHandleEvent(nsPresContext* aPresContext, | ||||
852 | WidgetEvent* aEvent, | ||||
853 | nsIFrame* aTargetFrame, | ||||
854 | nsIContent* aTargetContent, | ||||
855 | nsEventStatus* aStatus, | ||||
856 | nsIContent* aOverrideClickTarget) { | ||||
857 | AUTO_PROFILER_LABEL("EventStateManager::PreHandleEvent", DOM)mozilla::AutoProfilerLabel raiiObject857( "EventStateManager::PreHandleEvent" , nullptr, JS::ProfilingCategoryPair::DOM); | ||||
858 | NS_ENSURE_ARG_POINTER(aStatus)do { if ((__builtin_expect(!!(!(aStatus)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aStatus" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 858); return NS_ERROR_INVALID_POINTER; } } while (false); | ||||
859 | NS_ENSURE_ARG(aPresContext)do { if ((__builtin_expect(!!(!(aPresContext)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aPresContext" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 859); return NS_ERROR_INVALID_ARG; } } while (false); | ||||
860 | if (!aEvent) { | ||||
861 | NS_ERROR("aEvent is null. This should never happen.")do { NS_DebugBreak(NS_DEBUG_ASSERTION, "aEvent is null. This should never happen." , "Error", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 861); MOZ_PretendNoReturn(); } while (0); | ||||
862 | return NS_ERROR_NULL_POINTER; | ||||
863 | } | ||||
864 | |||||
865 | NS_WARNING_ASSERTION(do { if (!(!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame ->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame())) { NS_DebugBreak (NS_DEBUG_WARNING, "aTargetFrame should be related with aTargetContent" , "!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 871); } } while (false) | ||||
866 | !aTargetFrame || !aTargetFrame->GetContent() ||do { if (!(!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame ->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame())) { NS_DebugBreak (NS_DEBUG_WARNING, "aTargetFrame should be related with aTargetContent" , "!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 871); } } while (false) | ||||
867 | aTargetFrame->GetContent() == aTargetContent ||do { if (!(!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame ->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame())) { NS_DebugBreak (NS_DEBUG_WARNING, "aTargetFrame should be related with aTargetContent" , "!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 871); } } while (false) | ||||
868 | aTargetFrame->GetContent()->GetFlattenedTreeParent() ==do { if (!(!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame ->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame())) { NS_DebugBreak (NS_DEBUG_WARNING, "aTargetFrame should be related with aTargetContent" , "!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 871); } } while (false) | ||||
869 | aTargetContent ||do { if (!(!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame ->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame())) { NS_DebugBreak (NS_DEBUG_WARNING, "aTargetFrame should be related with aTargetContent" , "!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 871); } } while (false) | ||||
870 | aTargetFrame->IsGeneratedContentFrame(),do { if (!(!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame ->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame())) { NS_DebugBreak (NS_DEBUG_WARNING, "aTargetFrame should be related with aTargetContent" , "!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 871); } } while (false) | ||||
871 | "aTargetFrame should be related with aTargetContent")do { if (!(!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame ->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame())) { NS_DebugBreak (NS_DEBUG_WARNING, "aTargetFrame should be related with aTargetContent" , "!aTargetFrame || !aTargetFrame->GetContent() || aTargetFrame->GetContent() == aTargetContent || aTargetFrame->GetContent()->GetFlattenedTreeParent() == aTargetContent || aTargetFrame->IsGeneratedContentFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 871); } } while (false); | ||||
872 | #if DEBUG1 | ||||
873 | if (aTargetFrame && aTargetFrame->IsGeneratedContentFrame()) { | ||||
874 | nsCOMPtr<nsIContent> targetContent; | ||||
875 | aTargetFrame->GetContentForEvent(aEvent, getter_AddRefs(targetContent)); | ||||
876 | MOZ_ASSERT(aTargetContent == targetContent,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aTargetContent == targetContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aTargetContent == targetContent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aTargetContent == targetContent" " (" "Unexpected target for generated content frame!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 877); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aTargetContent == targetContent" ") (" "Unexpected target for generated content frame!" ")"); do { *((volatile int*)__null) = 877; __attribute__((nomerge) ) ::abort(); } while (false); } } while (false) | ||||
877 | "Unexpected target for generated content frame!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aTargetContent == targetContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aTargetContent == targetContent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aTargetContent == targetContent" " (" "Unexpected target for generated content frame!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 877); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aTargetContent == targetContent" ") (" "Unexpected target for generated content frame!" ")"); do { *((volatile int*)__null) = 877; __attribute__((nomerge) ) ::abort(); } while (false); } } while (false); | ||||
878 | } | ||||
879 | #endif | ||||
880 | |||||
881 | mCurrentTarget = aTargetFrame; | ||||
882 | mCurrentTargetContent = nullptr; | ||||
883 | |||||
884 | // Do not take account eMouseEnterIntoWidget/ExitFromWidget so that loading | ||||
885 | // a page when user is not active doesn't change the state to active. | ||||
886 | WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent(); | ||||
887 | if (aEvent->IsTrusted() && | ||||
888 | ((mouseEvent && mouseEvent->IsReal() && | ||||
889 | IsMessageMouseUserActivity(mouseEvent->mMessage)) || | ||||
890 | aEvent->mClass == eWheelEventClass || | ||||
891 | aEvent->mClass == ePointerEventClass || | ||||
892 | aEvent->mClass == eTouchEventClass || | ||||
893 | aEvent->mClass == eKeyboardEventClass || | ||||
894 | (aEvent->mClass == eDragEventClass && aEvent->mMessage == eDrop) || | ||||
895 | IsMessageGamepadUserActivity(aEvent->mMessage))) { | ||||
896 | if (gMouseOrKeyboardEventCounter == 0) { | ||||
897 | nsCOMPtr<nsIObserverService> obs = | ||||
898 | mozilla::services::GetObserverService(); | ||||
899 | if (obs) { | ||||
900 | obs->NotifyObservers(nullptr, "user-interaction-active", nullptr); | ||||
901 | UpdateUserActivityTimer(); | ||||
902 | } | ||||
903 | } | ||||
904 | ++gMouseOrKeyboardEventCounter; | ||||
905 | |||||
906 | nsCOMPtr<nsINode> node = aTargetContent; | ||||
907 | if (node && | ||||
908 | ((aEvent->mMessage == eKeyUp && IsKeyboardEventUserActivity(aEvent)) || | ||||
909 | aEvent->mMessage == eMouseUp || aEvent->mMessage == eWheel || | ||||
910 | aEvent->mMessage == eTouchEnd || aEvent->mMessage == ePointerUp || | ||||
911 | aEvent->mMessage == eDrop)) { | ||||
912 | Document* doc = node->OwnerDoc(); | ||||
913 | while (doc) { | ||||
914 | doc->SetUserHasInteracted(); | ||||
915 | doc = nsContentUtils::IsChildOfSameType(doc) | ||||
916 | ? doc->GetInProcessParentDocument() | ||||
917 | : nullptr; | ||||
918 | } | ||||
919 | } | ||||
920 | } | ||||
921 | |||||
922 | WheelTransaction::OnEvent(aEvent); | ||||
923 | |||||
924 | // Focus events don't necessarily need a frame. | ||||
925 | if (!mCurrentTarget && !aTargetContent) { | ||||
926 | NS_ERROR("mCurrentTarget and aTargetContent are null")do { NS_DebugBreak(NS_DEBUG_ASSERTION, "mCurrentTarget and aTargetContent are null" , "Error", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 926); MOZ_PretendNoReturn(); } while (0); | ||||
927 | return NS_ERROR_NULL_POINTER; | ||||
928 | } | ||||
929 | #ifdef DEBUG1 | ||||
930 | if (aEvent->HasDragEventMessage() && PointerLockManager::IsLocked()) { | ||||
931 | NS_ASSERTION(PointerLockManager::IsLocked(),do { if (!(PointerLockManager::IsLocked())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Pointer is locked. Drag events should be suppressed when " "the pointer is locked.", "PointerLockManager::IsLocked()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 933); MOZ_PretendNoReturn(); } } while (0) | ||||
932 | "Pointer is locked. Drag events should be suppressed when "do { if (!(PointerLockManager::IsLocked())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Pointer is locked. Drag events should be suppressed when " "the pointer is locked.", "PointerLockManager::IsLocked()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 933); MOZ_PretendNoReturn(); } } while (0) | ||||
933 | "the pointer is locked.")do { if (!(PointerLockManager::IsLocked())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Pointer is locked. Drag events should be suppressed when " "the pointer is locked.", "PointerLockManager::IsLocked()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 933); MOZ_PretendNoReturn(); } } while (0); | ||||
934 | } | ||||
935 | #endif | ||||
936 | // Store last known screenPoint and clientPoint so pointer lock | ||||
937 | // can use these values as constants. | ||||
938 | if (aEvent->IsTrusted() && | ||||
939 | ((mouseEvent && mouseEvent->IsReal()) || | ||||
940 | aEvent->mClass == eWheelEventClass) && | ||||
941 | !PointerLockManager::IsLocked()) { | ||||
942 | // XXX Probably doesn't matter much, but storing these in CSS pixels instead | ||||
943 | // of device pixels means behavior can be a bit odd if you zoom while | ||||
944 | // pointer-locked. | ||||
945 | sLastScreenPoint = | ||||
946 | Event::GetScreenCoords(aPresContext, aEvent, aEvent->mRefPoint) | ||||
947 | .extract(); | ||||
948 | sLastClientPoint = Event::GetClientCoords( | ||||
949 | aPresContext, aEvent, aEvent->mRefPoint, CSSIntPoint(0, 0)); | ||||
950 | } | ||||
951 | |||||
952 | *aStatus = nsEventStatus_eIgnore; | ||||
953 | |||||
954 | if (aEvent->mClass == eQueryContentEventClass) { | ||||
955 | HandleQueryContentEvent(aEvent->AsQueryContentEvent()); | ||||
956 | return NS_OK; | ||||
957 | } | ||||
958 | |||||
959 | WidgetTouchEvent* touchEvent = aEvent->AsTouchEvent(); | ||||
960 | if (touchEvent && mInTouchDrag) { | ||||
961 | if (touchEvent->mMessage == eTouchMove) { | ||||
962 | GenerateDragGesture(aPresContext, touchEvent); | ||||
963 | } else { | ||||
964 | mInTouchDrag = false; | ||||
965 | StopTrackingDragGesture(true); | ||||
966 | } | ||||
967 | } | ||||
968 | |||||
969 | if (mMouseEnterLeaveHelper && aEvent->IsTrusted()) { | ||||
970 | // When the last `mouseover` event target is removed from the document, | ||||
971 | // we makes mMouseEnterLeaveHelper update the last deepest `mouseenter` | ||||
972 | // event target to the removed node parent and mark it as not the following | ||||
973 | // `mouseout` event target. However, the other browsers may dispatch | ||||
974 | // `mouseout` on it if it's restored "immediately". Therefore, we use | ||||
975 | // the next animation frame as the deadline. ContentRemoved() enqueues a | ||||
976 | // synthesized `mousemove` to dispatch mouse boundary events under the | ||||
977 | // mouse cursor soon and the synthesized event (or eMouseExitFromWidget if | ||||
978 | // our window is moved) will reach here at latest the next animation frame. | ||||
979 | // Therefore, we can use the event as the deadline. If the removed last | ||||
980 | // `mouseover` target is reconnected before a synthesized mouse event or | ||||
981 | // a real mouse event, let's restore it as the following `mouseout` event | ||||
982 | // target. Otherwise, e.g., a keyboard event, let's forget it. | ||||
983 | mMouseEnterLeaveHelper->TryToRestorePendingRemovedOverTarget(aEvent); | ||||
984 | } | ||||
985 | |||||
986 | static constexpr auto const allowSynthesisForTests = []() -> bool { | ||||
987 | nsCOMPtr<nsIDragService> dragService = | ||||
988 | do_GetService("@mozilla.org/widget/dragservice;1"); | ||||
989 | return dragService && | ||||
990 | !dragService->GetNeverAllowSessionIsSynthesizedForTests(); | ||||
991 | }; | ||||
992 | |||||
993 | switch (aEvent->mMessage) { | ||||
994 | case eContextMenu: | ||||
995 | if (PointerLockManager::IsLocked()) { | ||||
996 | return NS_ERROR_DOM_INVALID_STATE_ERR; | ||||
997 | } | ||||
998 | break; | ||||
999 | case eMouseTouchDrag: | ||||
1000 | mInTouchDrag = true; | ||||
1001 | BeginTrackingDragGesture(aPresContext, mouseEvent, aTargetFrame); | ||||
1002 | break; | ||||
1003 | case eMouseDown: { | ||||
1004 | switch (mouseEvent->mButton) { | ||||
1005 | case MouseButton::ePrimary: | ||||
1006 | BeginTrackingDragGesture(aPresContext, mouseEvent, aTargetFrame); | ||||
1007 | mLastLeftMouseDownInfo.mClickCount = mouseEvent->mClickCount; | ||||
1008 | SetClickCount(mouseEvent, aStatus); | ||||
1009 | sNormalLMouseEventInProcess = true; | ||||
1010 | break; | ||||
1011 | case MouseButton::eMiddle: | ||||
1012 | mLastMiddleMouseDownInfo.mClickCount = mouseEvent->mClickCount; | ||||
1013 | SetClickCount(mouseEvent, aStatus); | ||||
1014 | break; | ||||
1015 | case MouseButton::eSecondary: | ||||
1016 | mLastRightMouseDownInfo.mClickCount = mouseEvent->mClickCount; | ||||
1017 | SetClickCount(mouseEvent, aStatus); | ||||
1018 | break; | ||||
1019 | } | ||||
1020 | NotifyTargetUserActivation(aEvent, aTargetContent); | ||||
1021 | break; | ||||
1022 | } | ||||
1023 | case eMouseUp: { | ||||
1024 | switch (mouseEvent->mButton) { | ||||
1025 | case MouseButton::ePrimary: | ||||
1026 | if (StaticPrefs::ui_click_hold_context_menus()) { | ||||
1027 | KillClickHoldTimer(); | ||||
1028 | } | ||||
1029 | mInTouchDrag = false; | ||||
1030 | StopTrackingDragGesture(true); | ||||
1031 | sNormalLMouseEventInProcess = false; | ||||
1032 | // then fall through... | ||||
1033 | [[fallthrough]]; | ||||
1034 | case MouseButton::eSecondary: | ||||
1035 | case MouseButton::eMiddle: | ||||
1036 | RefPtr<EventStateManager> esm = | ||||
1037 | ESMFromContentOrThis(aOverrideClickTarget); | ||||
1038 | esm->SetClickCount(mouseEvent, aStatus, aOverrideClickTarget); | ||||
1039 | break; | ||||
1040 | } | ||||
1041 | break; | ||||
1042 | } | ||||
1043 | case eMouseEnterIntoWidget: | ||||
1044 | PointerEventHandler::UpdateActivePointerState(mouseEvent, aTargetContent); | ||||
1045 | // In some cases on e10s eMouseEnterIntoWidget | ||||
1046 | // event was sent twice into child process of content. | ||||
1047 | // (From specific widget code (sending is not permanent) and | ||||
1048 | // from ESM::DispatchMouseOrPointerBoundaryEvent (sending is permanent)). | ||||
1049 | // IsCrossProcessForwardingStopped() helps to suppress sending accidental | ||||
1050 | // event from widget code. | ||||
1051 | aEvent->StopCrossProcessForwarding(); | ||||
1052 | break; | ||||
1053 | case eMouseExitFromWidget: | ||||
1054 | // If this is a remote frame, we receive eMouseExitFromWidget from the | ||||
1055 | // parent the mouse exits our content. Since the parent may update the | ||||
1056 | // cursor while the mouse is outside our frame, and since PuppetWidget | ||||
1057 | // caches the current cursor internally, re-entering our content (say from | ||||
1058 | // over a window edge) wont update the cursor if the cached value and the | ||||
1059 | // current cursor match. So when the mouse exits a remote frame, clear the | ||||
1060 | // cached widget cursor so a proper update will occur when the mouse | ||||
1061 | // re-enters. | ||||
1062 | if (XRE_IsContentProcess()) { | ||||
1063 | ClearCachedWidgetCursor(mCurrentTarget); | ||||
1064 | } | ||||
1065 | |||||
1066 | // IsCrossProcessForwardingStopped() helps to suppress double event | ||||
1067 | // sending into process of content. For more information see comment | ||||
1068 | // above, at eMouseEnterIntoWidget case. | ||||
1069 | aEvent->StopCrossProcessForwarding(); | ||||
1070 | |||||
1071 | // If the event is not a top-level window or puppet widget exit, then it's | ||||
1072 | // not really an exit --- we may have traversed widget boundaries but | ||||
1073 | // we're still in our toplevel window or puppet widget. | ||||
1074 | if (mouseEvent->mExitFrom.value() != | ||||
1075 | WidgetMouseEvent::ePlatformTopLevel && | ||||
1076 | mouseEvent->mExitFrom.value() != WidgetMouseEvent::ePuppet) { | ||||
1077 | // Treat it as a synthetic move so we don't generate spurious | ||||
1078 | // "exit" or "move" events. Any necessary "out" or "over" events | ||||
1079 | // will be generated by GenerateMouseEnterExit | ||||
1080 | mouseEvent->mMessage = eMouseMove; | ||||
1081 | mouseEvent->mReason = WidgetMouseEvent::eSynthesized; | ||||
1082 | // then fall through... | ||||
1083 | } else { | ||||
1084 | MOZ_ASSERT_IF(XRE_IsParentProcess(),do { if (XRE_IsParentProcess()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(mouseEvent->mExitFrom .value() == WidgetMouseEvent::ePlatformTopLevel)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePlatformTopLevel ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePlatformTopLevel" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1086); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePlatformTopLevel" ")"); do { *((volatile int*)__null) = 1086; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | ||||
1085 | mouseEvent->mExitFrom.value() ==do { if (XRE_IsParentProcess()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(mouseEvent->mExitFrom .value() == WidgetMouseEvent::ePlatformTopLevel)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePlatformTopLevel ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePlatformTopLevel" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1086); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePlatformTopLevel" ")"); do { *((volatile int*)__null) = 1086; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | ||||
1086 | WidgetMouseEvent::ePlatformTopLevel)do { if (XRE_IsParentProcess()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(mouseEvent->mExitFrom .value() == WidgetMouseEvent::ePlatformTopLevel)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePlatformTopLevel ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePlatformTopLevel" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1086); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePlatformTopLevel" ")"); do { *((volatile int*)__null) = 1086; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | ||||
1087 | MOZ_ASSERT_IF(XRE_IsContentProcess(), mouseEvent->mExitFrom.value() ==do { if (XRE_IsContentProcess()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(mouseEvent->mExitFrom .value() == WidgetMouseEvent::ePuppet)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mouseEvent->mExitFrom.value () == WidgetMouseEvent::ePuppet))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePuppet" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1088); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePuppet" ")"); do { *((volatile int*)__null) = 1088; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | ||||
1088 | WidgetMouseEvent::ePuppet)do { if (XRE_IsContentProcess()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(mouseEvent->mExitFrom .value() == WidgetMouseEvent::ePuppet)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mouseEvent->mExitFrom.value () == WidgetMouseEvent::ePuppet))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePuppet" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1088); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePuppet" ")"); do { *((volatile int*)__null) = 1088; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | ||||
1089 | // We should synthetize corresponding pointer events | ||||
1090 | GeneratePointerEnterExit(ePointerLeave, mouseEvent); | ||||
1091 | GenerateMouseEnterExit(mouseEvent); | ||||
1092 | // This is really an exit and should stop here | ||||
1093 | aEvent->mMessage = eVoidEvent; | ||||
1094 | break; | ||||
1095 | } | ||||
1096 | [[fallthrough]]; | ||||
1097 | case eMouseMove: | ||||
1098 | case ePointerDown: | ||||
1099 | if (aEvent->mMessage == ePointerDown) { | ||||
1100 | PointerEventHandler::UpdateActivePointerState(mouseEvent, | ||||
1101 | aTargetContent); | ||||
1102 | PointerEventHandler::ImplicitlyCapturePointer(aTargetFrame, aEvent); | ||||
1103 | if (mouseEvent->mInputSource != MouseEvent_Binding::MOZ_SOURCE_TOUCH) { | ||||
1104 | NotifyTargetUserActivation(aEvent, aTargetContent); | ||||
1105 | } | ||||
1106 | |||||
1107 | LightDismissOpenPopovers(aEvent, aTargetContent); | ||||
1108 | } | ||||
1109 | [[fallthrough]]; | ||||
1110 | case ePointerMove: { | ||||
1111 | if (!mInTouchDrag && | ||||
1112 | PointerEventHandler::IsDragAndDropEnabled(*mouseEvent)) { | ||||
1113 | GenerateDragGesture(aPresContext, mouseEvent); | ||||
1114 | } | ||||
1115 | // on the Mac, GenerateDragGesture() may not return until the drag | ||||
1116 | // has completed and so |aTargetFrame| may have been deleted (moving | ||||
1117 | // a bookmark, for example). If this is the case, however, we know | ||||
1118 | // that ClearFrameRefs() has been called and it cleared out | ||||
1119 | // |mCurrentTarget|. As a result, we should pass |mCurrentTarget| | ||||
1120 | // into UpdateCursor(). | ||||
1121 | UpdateCursor(aPresContext, mouseEvent, mCurrentTarget, aStatus); | ||||
1122 | |||||
1123 | UpdateLastRefPointOfMouseEvent(mouseEvent); | ||||
1124 | if (PointerLockManager::IsLocked()) { | ||||
1125 | ResetPointerToWindowCenterWhilePointerLocked(mouseEvent); | ||||
1126 | } | ||||
1127 | UpdateLastPointerPosition(mouseEvent); | ||||
1128 | |||||
1129 | GenerateMouseEnterExit(mouseEvent); | ||||
1130 | // Flush pending layout changes, so that later mouse move events | ||||
1131 | // will go to the right nodes. | ||||
1132 | FlushLayout(aPresContext); | ||||
1133 | break; | ||||
1134 | } | ||||
1135 | case ePointerUp: | ||||
1136 | LightDismissOpenPopovers(aEvent, aTargetContent); | ||||
1137 | GenerateMouseEnterExit(mouseEvent); | ||||
1138 | break; | ||||
1139 | case ePointerGotCapture: | ||||
1140 | GenerateMouseEnterExit(mouseEvent); | ||||
1141 | break; | ||||
1142 | case eDragStart: | ||||
1143 | if (StaticPrefs::ui_click_hold_context_menus()) { | ||||
1144 | // an external drag gesture event came in, not generated internally | ||||
1145 | // by Gecko. Make sure we get rid of the click-hold timer. | ||||
1146 | KillClickHoldTimer(); | ||||
1147 | } | ||||
1148 | break; | ||||
1149 | case eDragOver: { | ||||
1150 | WidgetDragEvent* dragEvent = aEvent->AsDragEvent(); | ||||
1151 | MOZ_ASSERT(dragEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(dragEvent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(dragEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("dragEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1151); AnnotateMozCrashReason("MOZ_ASSERT" "(" "dragEvent" ")" ); do { *((volatile int*)__null) = 1151; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1152 | if (dragEvent->mFlags.mIsSynthesizedForTests && | ||||
1153 | allowSynthesisForTests()) { | ||||
1154 | dragEvent->InitDropEffectForTests(); | ||||
1155 | } | ||||
1156 | // Send the enter/exit events before eDrop. | ||||
1157 | GenerateDragDropEnterExit(aPresContext, dragEvent); | ||||
1158 | break; | ||||
1159 | } | ||||
1160 | case eDrop: { | ||||
1161 | if (aEvent->mFlags.mIsSynthesizedForTests && allowSynthesisForTests()) { | ||||
1162 | MOZ_ASSERT(aEvent->AsDragEvent())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->AsDragEvent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->AsDragEvent()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->AsDragEvent()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1162); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->AsDragEvent()" ")"); do { *((volatile int*)__null) = 1162; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1163 | aEvent->AsDragEvent()->InitDropEffectForTests(); | ||||
1164 | } | ||||
1165 | break; | ||||
1166 | } | ||||
1167 | case eKeyPress: { | ||||
1168 | WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent(); | ||||
1169 | if (keyEvent->ModifiersMatchWithAccessKey(AccessKeyType::eChrome) || | ||||
1170 | keyEvent->ModifiersMatchWithAccessKey(AccessKeyType::eContent)) { | ||||
1171 | // If the eKeyPress event will be sent to a remote process, this | ||||
1172 | // process needs to wait reply from the remote process for checking if | ||||
1173 | // preceding eKeyDown event is consumed. If preceding eKeyDown event | ||||
1174 | // is consumed in the remote process, BrowserChild won't send the event | ||||
1175 | // back to this process. So, only when this process receives a reply | ||||
1176 | // eKeyPress event in BrowserParent, we should handle accesskey in this | ||||
1177 | // process. | ||||
1178 | if (IsTopLevelRemoteTarget(GetFocusedElement())) { | ||||
1179 | // However, if there is no accesskey target for the key combination, | ||||
1180 | // we don't need to wait reply from the remote process. Otherwise, | ||||
1181 | // Mark the event as waiting reply from remote process and stop | ||||
1182 | // propagation in this process. | ||||
1183 | if (CheckIfEventMatchesAccessKey(keyEvent, aPresContext)) { | ||||
1184 | keyEvent->StopPropagation(); | ||||
1185 | keyEvent->MarkAsWaitingReplyFromRemoteProcess(); | ||||
1186 | } | ||||
1187 | } | ||||
1188 | // If the event target is in this process, we can handle accesskey now | ||||
1189 | // since if preceding eKeyDown event was consumed, eKeyPress event | ||||
1190 | // won't be dispatched by widget. So, coming eKeyPress event means | ||||
1191 | // that the preceding eKeyDown event wasn't consumed in this case. | ||||
1192 | else { | ||||
1193 | AutoTArray<uint32_t, 10> accessCharCodes; | ||||
1194 | keyEvent->GetAccessKeyCandidates(accessCharCodes); | ||||
1195 | |||||
1196 | if (HandleAccessKey(keyEvent, aPresContext, accessCharCodes)) { | ||||
1197 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
1198 | } | ||||
1199 | } | ||||
1200 | } | ||||
1201 | } | ||||
1202 | // then fall through... | ||||
1203 | [[fallthrough]]; | ||||
1204 | case eKeyDown: | ||||
1205 | if (aEvent->mMessage == eKeyDown) { | ||||
1206 | NotifyTargetUserActivation(aEvent, aTargetContent); | ||||
1207 | } | ||||
1208 | [[fallthrough]]; | ||||
1209 | case eKeyUp: { | ||||
1210 | Element* element = GetFocusedElement(); | ||||
1211 | if (element) { | ||||
1212 | mCurrentTargetContent = element; | ||||
1213 | } | ||||
1214 | |||||
1215 | // NOTE: Don't refer TextComposition::IsComposing() since UI Events | ||||
1216 | // defines that KeyboardEvent.isComposing is true when it's | ||||
1217 | // dispatched after compositionstart and compositionend. | ||||
1218 | // TextComposition::IsComposing() is false even before | ||||
1219 | // compositionend if there is no composing string. | ||||
1220 | // And also don't expose other document's composition state. | ||||
1221 | // A native IME context is typically shared by multiple documents. | ||||
1222 | // So, don't use GetTextCompositionFor(nsIWidget*) here. | ||||
1223 | RefPtr<TextComposition> composition = | ||||
1224 | IMEStateManager::GetTextCompositionFor(aPresContext); | ||||
1225 | aEvent->AsKeyboardEvent()->mIsComposing = !!composition; | ||||
1226 | |||||
1227 | // Widget may need to perform default action for specific keyboard | ||||
1228 | // event if it's not consumed. In this case, widget has already marked | ||||
1229 | // the event as "waiting reply from remote process". However, we need | ||||
1230 | // to reset it if the target (focused content) isn't in a remote process | ||||
1231 | // because PresShell needs to check if it's marked as so before | ||||
1232 | // dispatching events into the DOM tree. | ||||
1233 | if (aEvent->IsWaitingReplyFromRemoteProcess() && | ||||
1234 | !aEvent->PropagationStopped() && !IsTopLevelRemoteTarget(element)) { | ||||
1235 | aEvent->ResetWaitingReplyFromRemoteProcessState(); | ||||
1236 | } | ||||
1237 | } break; | ||||
1238 | case eWheel: | ||||
1239 | case eWheelOperationStart: | ||||
1240 | case eWheelOperationEnd: { | ||||
1241 | NS_ASSERTION(aEvent->IsTrusted(),do { if (!(aEvent->IsTrusted())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Untrusted wheel event shouldn't be here", "aEvent->IsTrusted()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1242); MOZ_PretendNoReturn(); } } while (0) | ||||
1242 | "Untrusted wheel event shouldn't be here")do { if (!(aEvent->IsTrusted())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Untrusted wheel event shouldn't be here", "aEvent->IsTrusted()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1242); MOZ_PretendNoReturn(); } } while (0); | ||||
1243 | using DeltaModeCheckingState = WidgetWheelEvent::DeltaModeCheckingState; | ||||
1244 | |||||
1245 | if (Element* element = GetFocusedElement()) { | ||||
1246 | mCurrentTargetContent = element; | ||||
1247 | } | ||||
1248 | |||||
1249 | if (aEvent->mMessage != eWheel) { | ||||
1250 | break; | ||||
1251 | } | ||||
1252 | |||||
1253 | WidgetWheelEvent* wheelEvent = aEvent->AsWheelEvent(); | ||||
1254 | WheelPrefs::GetInstance()->ApplyUserPrefsToDelta(wheelEvent); | ||||
1255 | |||||
1256 | // If we won't dispatch a DOM event for this event, nothing to do anymore. | ||||
1257 | if (!wheelEvent->IsAllowedToDispatchDOMEvent()) { | ||||
1258 | break; | ||||
1259 | } | ||||
1260 | |||||
1261 | if (StaticPrefs::dom_event_wheel_deltaMode_lines_always_disabled()) { | ||||
1262 | wheelEvent->mDeltaModeCheckingState = DeltaModeCheckingState::Unchecked; | ||||
1263 | } else if (ShouldAlwaysUseLineDeltas()) { | ||||
1264 | wheelEvent->mDeltaModeCheckingState = DeltaModeCheckingState::Checked; | ||||
1265 | } else { | ||||
1266 | wheelEvent->mDeltaModeCheckingState = DeltaModeCheckingState::Unknown; | ||||
1267 | } | ||||
1268 | |||||
1269 | // Init lineOrPageDelta values for line scroll events for some devices | ||||
1270 | // on some platforms which might dispatch wheel events which don't | ||||
1271 | // have lineOrPageDelta values. And also, if delta values are | ||||
1272 | // customized by prefs, this recomputes them. | ||||
1273 | DeltaAccumulator::GetInstance()->InitLineOrPageDelta(aTargetFrame, this, | ||||
1274 | wheelEvent); | ||||
1275 | } break; | ||||
1276 | case eSetSelection: { | ||||
1277 | RefPtr<Element> focuedElement = GetFocusedElement(); | ||||
1278 | IMEStateManager::HandleSelectionEvent(aPresContext, focuedElement, | ||||
1279 | aEvent->AsSelectionEvent()); | ||||
1280 | break; | ||||
1281 | } | ||||
1282 | case eContentCommandCut: | ||||
1283 | case eContentCommandCopy: | ||||
1284 | case eContentCommandPaste: | ||||
1285 | case eContentCommandDelete: | ||||
1286 | case eContentCommandUndo: | ||||
1287 | case eContentCommandRedo: | ||||
1288 | case eContentCommandPasteTransferable: | ||||
1289 | case eContentCommandLookUpDictionary: | ||||
1290 | DoContentCommandEvent(aEvent->AsContentCommandEvent()); | ||||
1291 | break; | ||||
1292 | case eContentCommandInsertText: | ||||
1293 | DoContentCommandInsertTextEvent(aEvent->AsContentCommandEvent()); | ||||
1294 | break; | ||||
1295 | case eContentCommandReplaceText: | ||||
1296 | DoContentCommandReplaceTextEvent(aEvent->AsContentCommandEvent()); | ||||
1297 | break; | ||||
1298 | case eContentCommandScroll: | ||||
1299 | DoContentCommandScrollEvent(aEvent->AsContentCommandEvent()); | ||||
1300 | break; | ||||
1301 | case eCompositionStart: | ||||
1302 | if (aEvent->IsTrusted()) { | ||||
1303 | // If the event is trusted event, set the selected text to data of | ||||
1304 | // composition event. | ||||
1305 | WidgetCompositionEvent* compositionEvent = aEvent->AsCompositionEvent(); | ||||
1306 | WidgetQueryContentEvent querySelectedTextEvent( | ||||
1307 | true, eQuerySelectedText, compositionEvent->mWidget); | ||||
1308 | HandleQueryContentEvent(&querySelectedTextEvent); | ||||
1309 | if (querySelectedTextEvent.FoundSelection()) { | ||||
1310 | compositionEvent->mData = querySelectedTextEvent.mReply->DataRef(); | ||||
1311 | } | ||||
1312 | NS_ASSERTION(querySelectedTextEvent.Succeeded(),do { if (!(querySelectedTextEvent.Succeeded())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Failed to get selected text", "querySelectedTextEvent.Succeeded()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1313); MOZ_PretendNoReturn(); } } while (0) | ||||
1313 | "Failed to get selected text")do { if (!(querySelectedTextEvent.Succeeded())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Failed to get selected text", "querySelectedTextEvent.Succeeded()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1313); MOZ_PretendNoReturn(); } } while (0); | ||||
1314 | } | ||||
1315 | break; | ||||
1316 | case eTouchStart: | ||||
1317 | SetGestureDownPoint(aEvent->AsTouchEvent()); | ||||
1318 | break; | ||||
1319 | case eTouchEnd: | ||||
1320 | NotifyTargetUserActivation(aEvent, aTargetContent); | ||||
1321 | break; | ||||
1322 | default: | ||||
1323 | break; | ||||
1324 | } | ||||
1325 | return NS_OK; | ||||
1326 | } | ||||
1327 | |||||
1328 | // Returns true if this event is likely an user activation for a link or | ||||
1329 | // a link-like button, where modifier keys are likely be used for controlling | ||||
1330 | // where the link is opened. | ||||
1331 | // | ||||
1332 | // The modifiers associated with the user activation is used for controlling | ||||
1333 | // where the `window.open` is opened into. | ||||
1334 | static bool CanReflectModifiersToUserActivation(WidgetInputEvent* aEvent) { | ||||
1335 | MOZ_ASSERT(aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent ->mMessage == eTouchEnd)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1336); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd" ")"); do { *((volatile int*)__null) = 1336; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
1336 | aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent ->mMessage == eTouchEnd)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1336); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd" ")"); do { *((volatile int*)__null) = 1336; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1337 | |||||
1338 | WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent(); | ||||
1339 | if (keyEvent) { | ||||
1340 | return keyEvent->CanReflectModifiersToUserActivation(); | ||||
1341 | } | ||||
1342 | |||||
1343 | return true; | ||||
1344 | } | ||||
1345 | |||||
1346 | void EventStateManager::NotifyTargetUserActivation(WidgetEvent* aEvent, | ||||
1347 | nsIContent* aTargetContent) { | ||||
1348 | if (!aEvent->IsTrusted()) { | ||||
1349 | return; | ||||
1350 | } | ||||
1351 | |||||
1352 | WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent(); | ||||
1353 | if (mouseEvent && !mouseEvent->IsReal()) { | ||||
1354 | return; | ||||
1355 | } | ||||
1356 | |||||
1357 | nsCOMPtr<nsINode> node = aTargetContent; | ||||
1358 | if (!node) { | ||||
1359 | return; | ||||
1360 | } | ||||
1361 | |||||
1362 | Document* doc = node->OwnerDoc(); | ||||
1363 | if (!doc) { | ||||
1364 | return; | ||||
1365 | } | ||||
1366 | |||||
1367 | // Don't gesture activate for key events for keys which are likely | ||||
1368 | // to be interaction with the browser, OS. | ||||
1369 | WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent(); | ||||
1370 | if (keyEvent && !keyEvent->CanUserGestureActivateTarget()) { | ||||
1371 | return; | ||||
1372 | } | ||||
1373 | |||||
1374 | // Touch gestures that end outside the drag target were touches that turned | ||||
1375 | // into scroll/pan/swipe actions. We don't want to gesture activate on such | ||||
1376 | // actions, we want to only gesture activate on touches that are taps. | ||||
1377 | // That is, touches that end in roughly the same place that they started. | ||||
1378 | if (aEvent->mMessage == eTouchEnd && aEvent->AsTouchEvent() && | ||||
1379 | IsEventOutsideDragThreshold(aEvent->AsTouchEvent())) { | ||||
1380 | return; | ||||
1381 | } | ||||
1382 | |||||
1383 | // Do not treat the click on scrollbar as a user interaction with the web | ||||
1384 | // content. | ||||
1385 | if (StaticPrefs::dom_user_activation_ignore_scrollbars() && | ||||
1386 | (aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown) && | ||||
1387 | aTargetContent->IsInNativeAnonymousSubtree()) { | ||||
1388 | nsIContent* current = aTargetContent; | ||||
1389 | do { | ||||
1390 | nsIContent* root = current->GetClosestNativeAnonymousSubtreeRoot(); | ||||
1391 | if (!root) { | ||||
1392 | break; | ||||
1393 | } | ||||
1394 | if (root->IsXULElement(nsGkAtoms::scrollbar)) { | ||||
1395 | return; | ||||
1396 | } | ||||
1397 | current = root->GetParent(); | ||||
1398 | } while (current); | ||||
1399 | } | ||||
1400 | |||||
1401 | MOZ_ASSERT(aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent ->mMessage == eTouchEnd)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1402); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd" ")"); do { *((volatile int*)__null) = 1402; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
1402 | aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent ->mMessage == eTouchEnd)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1402); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage == eKeyDown || aEvent->mMessage == eMouseDown || aEvent->mMessage == ePointerDown || aEvent->mMessage == eTouchEnd" ")"); do { *((volatile int*)__null) = 1402; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1403 | UserActivation::Modifiers modifiers; | ||||
1404 | if (WidgetInputEvent* inputEvent = aEvent->AsInputEvent()) { | ||||
1405 | if (CanReflectModifiersToUserActivation(inputEvent)) { | ||||
1406 | if (inputEvent->IsShift()) { | ||||
1407 | modifiers.SetShift(); | ||||
1408 | } | ||||
1409 | if (inputEvent->IsMeta()) { | ||||
1410 | modifiers.SetMeta(); | ||||
1411 | } | ||||
1412 | if (inputEvent->IsControl()) { | ||||
1413 | modifiers.SetControl(); | ||||
1414 | } | ||||
1415 | if (inputEvent->IsAlt()) { | ||||
1416 | modifiers.SetAlt(); | ||||
1417 | } | ||||
1418 | |||||
1419 | WidgetMouseEvent* mouseEvent = inputEvent->AsMouseEvent(); | ||||
1420 | if (mouseEvent) { | ||||
1421 | if (mouseEvent->mButton == MouseButton::eMiddle) { | ||||
1422 | modifiers.SetMiddleMouse(); | ||||
1423 | } | ||||
1424 | } | ||||
1425 | } | ||||
1426 | } | ||||
1427 | doc->NotifyUserGestureActivation(modifiers); | ||||
1428 | } | ||||
1429 | |||||
1430 | // https://html.spec.whatwg.org/multipage/popover.html#popover-light-dismiss | ||||
1431 | void EventStateManager::LightDismissOpenPopovers(WidgetEvent* aEvent, | ||||
1432 | nsIContent* aTargetContent) { | ||||
1433 | MOZ_ASSERT(aEvent->mMessage == ePointerDown || aEvent->mMessage == ePointerUp,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage == ePointerDown || aEvent->mMessage == ePointerUp)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aEvent->mMessage == ePointerDown || aEvent->mMessage == ePointerUp))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mMessage == ePointerDown || aEvent->mMessage == ePointerUp" " (" "Light dismiss must be called for pointer up/down only" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1434); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage == ePointerDown || aEvent->mMessage == ePointerUp" ") (" "Light dismiss must be called for pointer up/down only" ")"); do { *((volatile int*)__null) = 1434; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
1434 | "Light dismiss must be called for pointer up/down only")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage == ePointerDown || aEvent->mMessage == ePointerUp)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aEvent->mMessage == ePointerDown || aEvent->mMessage == ePointerUp))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mMessage == ePointerDown || aEvent->mMessage == ePointerUp" " (" "Light dismiss must be called for pointer up/down only" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1434); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage == ePointerDown || aEvent->mMessage == ePointerUp" ") (" "Light dismiss must be called for pointer up/down only" ")"); do { *((volatile int*)__null) = 1434; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1435 | |||||
1436 | if (!StaticPrefs::dom_element_popover_enabled() || !aEvent->IsTrusted() || | ||||
1437 | !aTargetContent) { | ||||
1438 | return; | ||||
1439 | } | ||||
1440 | |||||
1441 | Element* topmostPopover = aTargetContent->OwnerDoc()->GetTopmostAutoPopover(); | ||||
1442 | if (!topmostPopover) { | ||||
1443 | return; | ||||
1444 | } | ||||
1445 | |||||
1446 | // Pointerdown: set document's popover pointerdown target to the result of | ||||
1447 | // running topmost clicked popover given target. | ||||
1448 | if (aEvent->mMessage == ePointerDown) { | ||||
1449 | mPopoverPointerDownTarget = aTargetContent->GetTopmostClickedPopover(); | ||||
1450 | return; | ||||
1451 | } | ||||
1452 | |||||
1453 | // Pointerup: hide open popovers. | ||||
1454 | RefPtr<nsINode> ancestor = aTargetContent->GetTopmostClickedPopover(); | ||||
1455 | bool sameTarget = mPopoverPointerDownTarget == ancestor; | ||||
1456 | mPopoverPointerDownTarget = nullptr; | ||||
1457 | if (!sameTarget) { | ||||
1458 | return; | ||||
1459 | } | ||||
1460 | |||||
1461 | if (!ancestor) { | ||||
1462 | ancestor = aTargetContent->OwnerDoc(); | ||||
1463 | } | ||||
1464 | RefPtr<Document> doc(ancestor->OwnerDoc()); | ||||
1465 | doc->HideAllPopoversUntil(*ancestor, false, true); | ||||
1466 | } | ||||
1467 | |||||
1468 | already_AddRefed<EventStateManager> EventStateManager::ESMFromContentOrThis( | ||||
1469 | nsIContent* aContent) { | ||||
1470 | if (aContent) { | ||||
1471 | PresShell* presShell = aContent->OwnerDoc()->GetPresShell(); | ||||
1472 | if (presShell) { | ||||
1473 | nsPresContext* prescontext = presShell->GetPresContext(); | ||||
1474 | if (prescontext) { | ||||
1475 | RefPtr<EventStateManager> esm = prescontext->EventStateManager(); | ||||
1476 | if (esm) { | ||||
1477 | return esm.forget(); | ||||
1478 | } | ||||
1479 | } | ||||
1480 | } | ||||
1481 | } | ||||
1482 | |||||
1483 | RefPtr<EventStateManager> esm = this; | ||||
1484 | return esm.forget(); | ||||
1485 | } | ||||
1486 | |||||
1487 | EventStateManager::LastMouseDownInfo& EventStateManager::GetLastMouseDownInfo( | ||||
1488 | int16_t aButton) { | ||||
1489 | switch (aButton) { | ||||
1490 | case MouseButton::ePrimary: | ||||
1491 | return mLastLeftMouseDownInfo; | ||||
1492 | case MouseButton::eMiddle: | ||||
1493 | return mLastMiddleMouseDownInfo; | ||||
1494 | case MouseButton::eSecondary: | ||||
1495 | return mLastRightMouseDownInfo; | ||||
1496 | default: | ||||
1497 | MOZ_ASSERT_UNREACHABLE("This button shouldn't use this method")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "This button shouldn't use this method" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1497); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "This button shouldn't use this method" ")"); do { *((volatile int*)__null) = 1497; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1498 | return mLastLeftMouseDownInfo; | ||||
1499 | } | ||||
1500 | } | ||||
1501 | |||||
1502 | void EventStateManager::HandleQueryContentEvent( | ||||
1503 | WidgetQueryContentEvent* aEvent) { | ||||
1504 | switch (aEvent->mMessage) { | ||||
1505 | case eQuerySelectedText: | ||||
1506 | case eQueryTextContent: | ||||
1507 | case eQueryCaretRect: | ||||
1508 | case eQueryTextRect: | ||||
1509 | case eQueryEditorRect: | ||||
1510 | if (!IsTargetCrossProcess(aEvent)) { | ||||
1511 | break; | ||||
1512 | } | ||||
1513 | // Will not be handled locally, remote the event | ||||
1514 | GetCrossProcessTarget()->HandleQueryContentEvent(*aEvent); | ||||
1515 | return; | ||||
1516 | // Following events have not been supported in e10s mode yet. | ||||
1517 | case eQueryContentState: | ||||
1518 | case eQuerySelectionAsTransferable: | ||||
1519 | case eQueryCharacterAtPoint: | ||||
1520 | case eQueryDOMWidgetHittest: | ||||
1521 | case eQueryTextRectArray: | ||||
1522 | break; | ||||
1523 | default: | ||||
1524 | return; | ||||
1525 | } | ||||
1526 | |||||
1527 | // If there is an IMEContentObserver, we need to handle QueryContentEvent | ||||
1528 | // with it. | ||||
1529 | if (mIMEContentObserver) { | ||||
1530 | RefPtr<IMEContentObserver> contentObserver = mIMEContentObserver; | ||||
1531 | contentObserver->HandleQueryContentEvent(aEvent); | ||||
1532 | return; | ||||
1533 | } | ||||
1534 | |||||
1535 | ContentEventHandler handler(mPresContext); | ||||
1536 | handler.HandleQueryContentEvent(aEvent); | ||||
1537 | } | ||||
1538 | |||||
1539 | static AccessKeyType GetAccessKeyTypeFor(nsISupports* aDocShell) { | ||||
1540 | nsCOMPtr<nsIDocShellTreeItem> treeItem(do_QueryInterface(aDocShell)); | ||||
1541 | if (!treeItem) { | ||||
1542 | return AccessKeyType::eNone; | ||||
1543 | } | ||||
1544 | |||||
1545 | switch (treeItem->ItemType()) { | ||||
1546 | case nsIDocShellTreeItem::typeChrome: | ||||
1547 | return AccessKeyType::eChrome; | ||||
1548 | case nsIDocShellTreeItem::typeContent: | ||||
1549 | return AccessKeyType::eContent; | ||||
1550 | default: | ||||
1551 | return AccessKeyType::eNone; | ||||
1552 | } | ||||
1553 | } | ||||
1554 | |||||
1555 | static bool IsAccessKeyTarget(Element* aElement, nsAString& aKey) { | ||||
1556 | // Use GetAttr because we want Unicode case=insensitive matching | ||||
1557 | // XXXbz shouldn't this be case-sensitive, per spec? | ||||
1558 | nsString contentKey; | ||||
1559 | if (!aElement || !aElement->GetAttr(nsGkAtoms::accesskey, contentKey) || | ||||
1560 | !contentKey.Equals(aKey, nsCaseInsensitiveStringComparator)) { | ||||
1561 | return false; | ||||
1562 | } | ||||
1563 | |||||
1564 | if (!aElement->IsXULElement()) { | ||||
1565 | return true; | ||||
1566 | } | ||||
1567 | |||||
1568 | // For XUL we do visibility checks. | ||||
1569 | nsIFrame* frame = aElement->GetPrimaryFrame(); | ||||
1570 | if (!frame) { | ||||
1571 | return false; | ||||
1572 | } | ||||
1573 | |||||
1574 | if (frame->IsFocusable()) { | ||||
1575 | return true; | ||||
1576 | } | ||||
1577 | |||||
1578 | if (!frame->IsVisibleConsideringAncestors()) { | ||||
1579 | return false; | ||||
1580 | } | ||||
1581 | |||||
1582 | // XUL controls can be activated. | ||||
1583 | nsCOMPtr<nsIDOMXULControlElement> control = aElement->AsXULControl(); | ||||
1584 | if (control) { | ||||
1585 | return true; | ||||
1586 | } | ||||
1587 | |||||
1588 | // XUL label elements are never focusable, so we need to check for them | ||||
1589 | // explicitly before giving up. | ||||
1590 | if (aElement->IsXULElement(nsGkAtoms::label)) { | ||||
1591 | return true; | ||||
1592 | } | ||||
1593 | |||||
1594 | return false; | ||||
1595 | } | ||||
1596 | |||||
1597 | bool EventStateManager::CheckIfEventMatchesAccessKey( | ||||
1598 | WidgetKeyboardEvent* aEvent, nsPresContext* aPresContext) { | ||||
1599 | AutoTArray<uint32_t, 10> accessCharCodes; | ||||
1600 | aEvent->GetAccessKeyCandidates(accessCharCodes); | ||||
1601 | return WalkESMTreeToHandleAccessKey(aEvent, aPresContext, accessCharCodes, | ||||
1602 | nullptr, eAccessKeyProcessingNormal, | ||||
1603 | false); | ||||
1604 | } | ||||
1605 | |||||
1606 | bool EventStateManager::LookForAccessKeyAndExecute( | ||||
1607 | nsTArray<uint32_t>& aAccessCharCodes, bool aIsTrustedEvent, bool aIsRepeat, | ||||
1608 | bool aExecute) { | ||||
1609 | int32_t count, start = -1; | ||||
1610 | if (Element* focusedElement = GetFocusedElement()) { | ||||
1611 | start = mAccessKeys.IndexOf(focusedElement); | ||||
1612 | if (start == -1 && focusedElement->IsInNativeAnonymousSubtree()) { | ||||
1613 | start = mAccessKeys.IndexOf(Element::FromNodeOrNull( | ||||
1614 | focusedElement->GetClosestNativeAnonymousSubtreeRootParentOrHost())); | ||||
1615 | } | ||||
1616 | } | ||||
1617 | RefPtr<Element> element; | ||||
1618 | int32_t length = mAccessKeys.Count(); | ||||
1619 | for (uint32_t i = 0; i < aAccessCharCodes.Length(); ++i) { | ||||
1620 | uint32_t ch = aAccessCharCodes[i]; | ||||
1621 | nsAutoString accessKey; | ||||
1622 | AppendUCS4ToUTF16(ch, accessKey); | ||||
1623 | for (count = 1; count <= length; ++count) { | ||||
1624 | // mAccessKeys always stores Element instances. | ||||
1625 | MOZ_DIAGNOSTIC_ASSERT(length == mAccessKeys.Count())do { static_assert( mozilla::detail::AssertionConditionType< decltype(length == mAccessKeys.Count())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(length == mAccessKeys.Count( )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("length == mAccessKeys.Count()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1625); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "length == mAccessKeys.Count()" ")"); do { *((volatile int*)__null) = 1625; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1626 | element = mAccessKeys[(start + count) % length]; | ||||
1627 | if (IsAccessKeyTarget(element, accessKey)) { | ||||
1628 | if (!aExecute) { | ||||
1629 | return true; | ||||
1630 | } | ||||
1631 | Document* doc = element->OwnerDoc(); | ||||
1632 | const bool shouldActivate = [&] { | ||||
1633 | if (!StaticPrefs::accessibility_accesskeycausesactivation()) { | ||||
1634 | return false; | ||||
1635 | } | ||||
1636 | if (aIsRepeat && nsContentUtils::IsChromeDoc(doc)) { | ||||
1637 | return false; | ||||
1638 | } | ||||
1639 | |||||
1640 | // XXXedgar, Bug 1700646, maybe we could use other data structure to | ||||
1641 | // make searching target with same accesskey easier, and current setup | ||||
1642 | // could not ensure we cycle the target with tree order. | ||||
1643 | int32_t j = 0; | ||||
1644 | while (++j < length) { | ||||
1645 | Element* el = mAccessKeys[(start + count + j) % length]; | ||||
1646 | if (IsAccessKeyTarget(el, accessKey)) { | ||||
1647 | return false; | ||||
1648 | } | ||||
1649 | } | ||||
1650 | return true; | ||||
1651 | }(); | ||||
1652 | |||||
1653 | // TODO(bug 1641171): This shouldn't be needed if we considered the | ||||
1654 | // accesskey combination properly. | ||||
1655 | if (aIsTrustedEvent) { | ||||
1656 | doc->NotifyUserGestureActivation(); | ||||
1657 | } | ||||
1658 | |||||
1659 | auto result = | ||||
1660 | element->PerformAccesskey(shouldActivate, aIsTrustedEvent); | ||||
1661 | if (result.isOk()) { | ||||
1662 | if (result.unwrap() && aIsTrustedEvent) { | ||||
1663 | // If this is a child process, inform the parent that we want the | ||||
1664 | // focus, but pass false since we don't want to change the window | ||||
1665 | // order. | ||||
1666 | nsIDocShell* docShell = mPresContext->GetDocShell(); | ||||
1667 | nsCOMPtr<nsIBrowserChild> child = | ||||
1668 | docShell ? docShell->GetBrowserChild() : nullptr; | ||||
1669 | if (child) { | ||||
1670 | child->SendRequestFocus(false, CallerType::System); | ||||
1671 | } | ||||
1672 | } | ||||
1673 | return true; | ||||
1674 | } | ||||
1675 | } | ||||
1676 | } | ||||
1677 | } | ||||
1678 | return false; | ||||
1679 | } | ||||
1680 | |||||
1681 | // static | ||||
1682 | void EventStateManager::GetAccessKeyLabelPrefix(Element* aElement, | ||||
1683 | nsAString& aPrefix) { | ||||
1684 | aPrefix.Truncate(); | ||||
1685 | nsAutoString separator, modifierText; | ||||
1686 | nsContentUtils::GetModifierSeparatorText(separator); | ||||
1687 | |||||
1688 | AccessKeyType accessKeyType = | ||||
1689 | GetAccessKeyTypeFor(aElement->OwnerDoc()->GetDocShell()); | ||||
1690 | if (accessKeyType == AccessKeyType::eNone) { | ||||
1691 | return; | ||||
1692 | } | ||||
1693 | Modifiers modifiers = WidgetKeyboardEvent::AccessKeyModifiers(accessKeyType); | ||||
1694 | if (modifiers == MODIFIER_NONE) { | ||||
1695 | return; | ||||
1696 | } | ||||
1697 | |||||
1698 | if (modifiers & MODIFIER_CONTROL) { | ||||
1699 | nsContentUtils::GetControlText(modifierText); | ||||
1700 | aPrefix.Append(modifierText + separator); | ||||
1701 | } | ||||
1702 | if (modifiers & MODIFIER_META) { | ||||
1703 | nsContentUtils::GetCommandOrWinText(modifierText); | ||||
1704 | aPrefix.Append(modifierText + separator); | ||||
1705 | } | ||||
1706 | if (modifiers & MODIFIER_ALT) { | ||||
1707 | nsContentUtils::GetAltText(modifierText); | ||||
1708 | aPrefix.Append(modifierText + separator); | ||||
1709 | } | ||||
1710 | if (modifiers & MODIFIER_SHIFT) { | ||||
1711 | nsContentUtils::GetShiftText(modifierText); | ||||
1712 | aPrefix.Append(modifierText + separator); | ||||
1713 | } | ||||
1714 | } | ||||
1715 | |||||
1716 | struct MOZ_STACK_CLASS AccessKeyInfo { | ||||
1717 | WidgetKeyboardEvent* event; | ||||
1718 | nsTArray<uint32_t>& charCodes; | ||||
1719 | |||||
1720 | AccessKeyInfo(WidgetKeyboardEvent* aEvent, nsTArray<uint32_t>& aCharCodes) | ||||
1721 | : event(aEvent), charCodes(aCharCodes) {} | ||||
1722 | }; | ||||
1723 | |||||
1724 | bool EventStateManager::WalkESMTreeToHandleAccessKey( | ||||
1725 | WidgetKeyboardEvent* aEvent, nsPresContext* aPresContext, | ||||
1726 | nsTArray<uint32_t>& aAccessCharCodes, nsIDocShellTreeItem* aBubbledFrom, | ||||
1727 | ProcessingAccessKeyState aAccessKeyState, bool aExecute) { | ||||
1728 | EnsureDocument(mPresContext); | ||||
1729 | nsCOMPtr<nsIDocShell> docShell = aPresContext->GetDocShell(); | ||||
1730 | if (NS_WARN_IF(!docShell)NS_warn_if_impl(!docShell, "!docShell", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1730) || NS_WARN_IF(!mDocument)NS_warn_if_impl(!mDocument, "!mDocument", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1730)) { | ||||
1731 | return false; | ||||
1732 | } | ||||
1733 | AccessKeyType accessKeyType = GetAccessKeyTypeFor(docShell); | ||||
1734 | if (accessKeyType == AccessKeyType::eNone) { | ||||
1735 | return false; | ||||
1736 | } | ||||
1737 | // Alt or other accesskey modifier is down, we may need to do an accesskey. | ||||
1738 | if (mAccessKeys.Count() > 0 && | ||||
1739 | aEvent->ModifiersMatchWithAccessKey(accessKeyType)) { | ||||
1740 | // Someone registered an accesskey. Find and activate it. | ||||
1741 | if (LookForAccessKeyAndExecute(aAccessCharCodes, aEvent->IsTrusted(), | ||||
1742 | aEvent->mIsRepeat, aExecute)) { | ||||
1743 | return true; | ||||
1744 | } | ||||
1745 | } | ||||
1746 | |||||
1747 | int32_t childCount; | ||||
1748 | docShell->GetInProcessChildCount(&childCount); | ||||
1749 | for (int32_t counter = 0; counter < childCount; counter++) { | ||||
1750 | // Not processing the child which bubbles up the handling | ||||
1751 | nsCOMPtr<nsIDocShellTreeItem> subShellItem; | ||||
1752 | docShell->GetInProcessChildAt(counter, getter_AddRefs(subShellItem)); | ||||
1753 | if (aAccessKeyState == eAccessKeyProcessingUp && | ||||
1754 | subShellItem == aBubbledFrom) { | ||||
1755 | continue; | ||||
1756 | } | ||||
1757 | |||||
1758 | nsCOMPtr<nsIDocShell> subDS = do_QueryInterface(subShellItem); | ||||
1759 | if (subDS && IsShellVisible(subDS)) { | ||||
1760 | // Guarantee subPresShell lifetime while we're handling access key | ||||
1761 | // since somebody may assume that it won't be deleted before the | ||||
1762 | // corresponding nsPresContext and EventStateManager. | ||||
1763 | RefPtr<PresShell> subPresShell = subDS->GetPresShell(); | ||||
1764 | |||||
1765 | // Docshells need not have a presshell (eg. display:none | ||||
1766 | // iframes, docshells in transition between documents, etc). | ||||
1767 | if (!subPresShell) { | ||||
1768 | // Oh, well. Just move on to the next child | ||||
1769 | continue; | ||||
1770 | } | ||||
1771 | |||||
1772 | RefPtr<nsPresContext> subPresContext = subPresShell->GetPresContext(); | ||||
1773 | |||||
1774 | RefPtr<EventStateManager> esm = | ||||
1775 | static_cast<EventStateManager*>(subPresContext->EventStateManager()); | ||||
1776 | |||||
1777 | if (esm && esm->WalkESMTreeToHandleAccessKey( | ||||
1778 | aEvent, subPresContext, aAccessCharCodes, nullptr, | ||||
1779 | eAccessKeyProcessingDown, aExecute)) { | ||||
1780 | return true; | ||||
1781 | } | ||||
1782 | } | ||||
1783 | } // if end . checking all sub docshell ends here. | ||||
1784 | |||||
1785 | // bubble up the process to the parent docshell if necessary | ||||
1786 | if (eAccessKeyProcessingDown != aAccessKeyState) { | ||||
1787 | nsCOMPtr<nsIDocShellTreeItem> parentShellItem; | ||||
1788 | docShell->GetInProcessParent(getter_AddRefs(parentShellItem)); | ||||
1789 | nsCOMPtr<nsIDocShell> parentDS = do_QueryInterface(parentShellItem); | ||||
1790 | if (parentDS) { | ||||
1791 | // Guarantee parentPresShell lifetime while we're handling access key | ||||
1792 | // since somebody may assume that it won't be deleted before the | ||||
1793 | // corresponding nsPresContext and EventStateManager. | ||||
1794 | RefPtr<PresShell> parentPresShell = parentDS->GetPresShell(); | ||||
1795 | NS_ASSERTION(parentPresShell,do { if (!(parentPresShell)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Our PresShell exists but the parent's does not?", "parentPresShell" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1796); MOZ_PretendNoReturn(); } } while (0) | ||||
1796 | "Our PresShell exists but the parent's does not?")do { if (!(parentPresShell)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Our PresShell exists but the parent's does not?", "parentPresShell" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1796); MOZ_PretendNoReturn(); } } while (0); | ||||
1797 | |||||
1798 | RefPtr<nsPresContext> parentPresContext = | ||||
1799 | parentPresShell->GetPresContext(); | ||||
1800 | NS_ASSERTION(parentPresContext, "PresShell without PresContext")do { if (!(parentPresContext)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "PresShell without PresContext", "parentPresContext", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1800); MOZ_PretendNoReturn(); } } while (0); | ||||
1801 | |||||
1802 | RefPtr<EventStateManager> esm = static_cast<EventStateManager*>( | ||||
1803 | parentPresContext->EventStateManager()); | ||||
1804 | if (esm && esm->WalkESMTreeToHandleAccessKey( | ||||
1805 | aEvent, parentPresContext, aAccessCharCodes, docShell, | ||||
1806 | eAccessKeyProcessingDown, aExecute)) { | ||||
1807 | return true; | ||||
1808 | } | ||||
1809 | } | ||||
1810 | } // if end. bubble up process | ||||
1811 | |||||
1812 | // If the content access key modifier is pressed, try remote children | ||||
1813 | if (aExecute && | ||||
1814 | aEvent->ModifiersMatchWithAccessKey(AccessKeyType::eContent) && | ||||
1815 | mDocument && mDocument->GetWindow()) { | ||||
1816 | // If the focus is currently on a node with a BrowserParent, the key event | ||||
1817 | // should've gotten forwarded to the child process and HandleAccessKey | ||||
1818 | // called from there. | ||||
1819 | if (BrowserParent::GetFrom(GetFocusedElement())) { | ||||
1820 | // If access key may be only in remote contents, this method won't handle | ||||
1821 | // access key synchronously. In this case, only reply event should reach | ||||
1822 | // here. | ||||
1823 | MOZ_ASSERT(aEvent->IsHandledInRemoteProcess() ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->IsHandledInRemoteProcess() || !aEvent-> IsWaitingReplyFromRemoteProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->IsHandledInRemoteProcess () || !aEvent->IsWaitingReplyFromRemoteProcess()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->IsHandledInRemoteProcess() || !aEvent->IsWaitingReplyFromRemoteProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1824); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->IsHandledInRemoteProcess() || !aEvent->IsWaitingReplyFromRemoteProcess()" ")"); do { *((volatile int*)__null) = 1824; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
1824 | !aEvent->IsWaitingReplyFromRemoteProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->IsHandledInRemoteProcess() || !aEvent-> IsWaitingReplyFromRemoteProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->IsHandledInRemoteProcess () || !aEvent->IsWaitingReplyFromRemoteProcess()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->IsHandledInRemoteProcess() || !aEvent->IsWaitingReplyFromRemoteProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1824); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->IsHandledInRemoteProcess() || !aEvent->IsWaitingReplyFromRemoteProcess()" ")"); do { *((volatile int*)__null) = 1824; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1825 | } | ||||
1826 | // If focus is somewhere else, then we need to check the remote children. | ||||
1827 | // However, if the event has already been handled in a remote process, | ||||
1828 | // then, focus is moved from the remote process after posting the event. | ||||
1829 | // In such case, we shouldn't retry to handle access keys in remote | ||||
1830 | // processes. | ||||
1831 | else if (!aEvent->IsHandledInRemoteProcess()) { | ||||
1832 | AccessKeyInfo accessKeyInfo(aEvent, aAccessCharCodes); | ||||
1833 | nsContentUtils::CallOnAllRemoteChildren( | ||||
1834 | mDocument->GetWindow(), | ||||
1835 | [&accessKeyInfo](BrowserParent* aBrowserParent) -> CallState { | ||||
1836 | // Only forward accesskeys for the active tab. | ||||
1837 | if (aBrowserParent->GetDocShellIsActive()) { | ||||
1838 | // Even if there is no target for the accesskey in this process, | ||||
1839 | // the event may match with a content accesskey. If so, the | ||||
1840 | // keyboard event should be handled with reply event for | ||||
1841 | // preventing double action. (e.g., Alt+Shift+F on Windows may | ||||
1842 | // focus a content in remote and open "File" menu.) | ||||
1843 | accessKeyInfo.event->StopPropagation(); | ||||
1844 | accessKeyInfo.event->MarkAsWaitingReplyFromRemoteProcess(); | ||||
1845 | aBrowserParent->HandleAccessKey(*accessKeyInfo.event, | ||||
1846 | accessKeyInfo.charCodes); | ||||
1847 | return CallState::Stop; | ||||
1848 | } | ||||
1849 | |||||
1850 | return CallState::Continue; | ||||
1851 | }); | ||||
1852 | } | ||||
1853 | } | ||||
1854 | |||||
1855 | return false; | ||||
1856 | } // end of HandleAccessKey | ||||
1857 | |||||
1858 | static BrowserParent* GetBrowserParentAncestor(BrowserParent* aBrowserParent) { | ||||
1859 | MOZ_ASSERT(aBrowserParent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aBrowserParent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aBrowserParent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aBrowserParent" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1859); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aBrowserParent" ")"); do { *((volatile int*)__null) = 1859; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1860 | |||||
1861 | BrowserBridgeParent* bbp = aBrowserParent->GetBrowserBridgeParent(); | ||||
1862 | if (!bbp) { | ||||
1863 | return nullptr; | ||||
1864 | } | ||||
1865 | |||||
1866 | return bbp->Manager(); | ||||
1867 | } | ||||
1868 | |||||
1869 | static void DispatchCrossProcessMouseExitEvents(WidgetMouseEvent* aMouseEvent, | ||||
1870 | BrowserParent* aRemoteTarget, | ||||
1871 | BrowserParent* aStopAncestor, | ||||
1872 | bool aIsReallyExit) { | ||||
1873 | MOZ_ASSERT(aMouseEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMouseEvent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMouseEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMouseEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1873); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMouseEvent" ")"); do { *((volatile int*)__null) = 1873; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1874 | MOZ_ASSERT(aRemoteTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aRemoteTarget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aRemoteTarget))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aRemoteTarget", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1874); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aRemoteTarget" ")"); do { *((volatile int*)__null) = 1874; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1875 | MOZ_ASSERT(aRemoteTarget != aStopAncestor)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aRemoteTarget != aStopAncestor)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aRemoteTarget != aStopAncestor ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aRemoteTarget != aStopAncestor", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1875); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aRemoteTarget != aStopAncestor" ")"); do { *((volatile int*)__null) = 1875; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1876 | MOZ_ASSERT_IF(aStopAncestor, nsContentUtils::GetCommonBrowserParentAncestor(do { if (aStopAncestor) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(nsContentUtils::GetCommonBrowserParentAncestor ( aRemoteTarget, aStopAncestor))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(nsContentUtils::GetCommonBrowserParentAncestor ( aRemoteTarget, aStopAncestor)))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("nsContentUtils::GetCommonBrowserParentAncestor( aRemoteTarget, aStopAncestor)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1877); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nsContentUtils::GetCommonBrowserParentAncestor( aRemoteTarget, aStopAncestor)" ")"); do { *((volatile int*)__null) = 1877; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) | ||||
1877 | aRemoteTarget, aStopAncestor))do { if (aStopAncestor) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(nsContentUtils::GetCommonBrowserParentAncestor ( aRemoteTarget, aStopAncestor))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(nsContentUtils::GetCommonBrowserParentAncestor ( aRemoteTarget, aStopAncestor)))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("nsContentUtils::GetCommonBrowserParentAncestor( aRemoteTarget, aStopAncestor)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1877); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nsContentUtils::GetCommonBrowserParentAncestor( aRemoteTarget, aStopAncestor)" ")"); do { *((volatile int*)__null) = 1877; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | ||||
1878 | |||||
1879 | while (aRemoteTarget != aStopAncestor) { | ||||
1880 | UniquePtr<WidgetMouseEvent> mouseExitEvent = | ||||
1881 | CreateMouseOrPointerWidgetEvent(aMouseEvent, eMouseExitFromWidget, | ||||
1882 | aMouseEvent->mRelatedTarget); | ||||
1883 | mouseExitEvent->mExitFrom = | ||||
1884 | Some(aIsReallyExit ? WidgetMouseEvent::ePuppet | ||||
1885 | : WidgetMouseEvent::ePuppetParentToPuppetChild); | ||||
1886 | aRemoteTarget->SendRealMouseEvent(*mouseExitEvent); | ||||
1887 | |||||
1888 | aRemoteTarget = GetBrowserParentAncestor(aRemoteTarget); | ||||
1889 | } | ||||
1890 | } | ||||
1891 | |||||
1892 | void EventStateManager::DispatchCrossProcessEvent(WidgetEvent* aEvent, | ||||
1893 | BrowserParent* aRemoteTarget, | ||||
1894 | nsEventStatus* aStatus) { | ||||
1895 | MOZ_ASSERT(aEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent" ")" ); do { *((volatile int*)__null) = 1895; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1896 | MOZ_ASSERT(aRemoteTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aRemoteTarget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aRemoteTarget))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aRemoteTarget", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1896); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aRemoteTarget" ")"); do { *((volatile int*)__null) = 1896; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1897 | MOZ_ASSERT(aStatus)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStatus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStatus))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStatus", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1897); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStatus" ")" ); do { *((volatile int*)__null) = 1897; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1898 | |||||
1899 | BrowserParent* remote = aRemoteTarget; | ||||
1900 | |||||
1901 | WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent(); | ||||
1902 | bool isContextMenuKey = mouseEvent && mouseEvent->IsContextMenuKeyEvent(); | ||||
1903 | if (aEvent->mClass == eKeyboardEventClass || isContextMenuKey) { | ||||
1904 | // APZ attaches a LayersId to hit-testable events, for keyboard events, | ||||
1905 | // we use focus. | ||||
1906 | BrowserParent* preciseRemote = BrowserParent::GetFocused(); | ||||
1907 | if (preciseRemote) { | ||||
1908 | remote = preciseRemote; | ||||
1909 | } | ||||
1910 | // else there is a race between layout and focus tracking, | ||||
1911 | // so fall back to delivering the event to the topmost child process. | ||||
1912 | } else if (aEvent->mLayersId.IsValid()) { | ||||
1913 | BrowserParent* preciseRemote = | ||||
1914 | BrowserParent::GetBrowserParentFromLayersId(aEvent->mLayersId); | ||||
1915 | if (preciseRemote) { | ||||
1916 | remote = preciseRemote; | ||||
1917 | } | ||||
1918 | // else there is a race between APZ and the LayersId to BrowserParent | ||||
1919 | // mapping, so fall back to delivering the event to the topmost child | ||||
1920 | // process. | ||||
1921 | } | ||||
1922 | |||||
1923 | MOZ_ASSERT(aEvent->mMessage != ePointerClick)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage != ePointerClick)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->mMessage != ePointerClick ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aEvent->mMessage != ePointerClick", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1923); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage != ePointerClick" ")"); do { *((volatile int*)__null) = 1923; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1924 | MOZ_ASSERT(aEvent->mMessage != ePointerAuxClick)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage != ePointerAuxClick)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aEvent->mMessage != ePointerAuxClick))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mMessage != ePointerAuxClick" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1924); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage != ePointerAuxClick" ")"); do { *((volatile int*)__null) = 1924; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1925 | |||||
1926 | // SendReal* will transform the coordinate to the child process coordinate | ||||
1927 | // space. So restore the coordinate after the event has been dispatched to the | ||||
1928 | // child process to avoid using the transformed coordinate afterward. | ||||
1929 | AutoRestore<LayoutDeviceIntPoint> restore(aEvent->mRefPoint); | ||||
1930 | switch (aEvent->mClass) { | ||||
1931 | case ePointerEventClass: | ||||
1932 | MOZ_ASSERT(aEvent->mMessage == eContextMenu)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage == eContextMenu)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->mMessage == eContextMenu ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aEvent->mMessage == eContextMenu", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1932); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage == eContextMenu" ")"); do { *((volatile int*)__null) = 1932; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1933 | [[fallthrough]]; | ||||
1934 | case eMouseEventClass: { | ||||
1935 | BrowserParent* oldRemote = BrowserParent::GetLastMouseRemoteTarget(); | ||||
1936 | |||||
1937 | // If this is a eMouseExitFromWidget event, need to redirect the event to | ||||
1938 | // the last remote and and notify all its ancestors about the exit, if | ||||
1939 | // any. | ||||
1940 | if (mouseEvent->mMessage == eMouseExitFromWidget) { | ||||
1941 | MOZ_ASSERT(mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePuppet)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mouseEvent->mExitFrom.value() == WidgetMouseEvent ::ePuppet)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePuppet))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePuppet" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1941); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mouseEvent->mExitFrom.value() == WidgetMouseEvent::ePuppet" ")"); do { *((volatile int*)__null) = 1941; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1942 | MOZ_ASSERT(mouseEvent->mReason == WidgetMouseEvent::eReal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mouseEvent->mReason == WidgetMouseEvent::eReal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mouseEvent->mReason == WidgetMouseEvent::eReal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("mouseEvent->mReason == WidgetMouseEvent::eReal" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1942); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mouseEvent->mReason == WidgetMouseEvent::eReal" ")"); do { *((volatile int*)__null) = 1942; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1943 | MOZ_ASSERT(!mouseEvent->mLayersId.IsValid())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mouseEvent->mLayersId.IsValid())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mouseEvent->mLayersId.IsValid ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!mouseEvent->mLayersId.IsValid()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1943); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mouseEvent->mLayersId.IsValid()" ")"); do { *((volatile int*)__null) = 1943; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1944 | MOZ_ASSERT(remote->GetBrowserHost())do { static_assert( mozilla::detail::AssertionConditionType< decltype(remote->GetBrowserHost())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(remote->GetBrowserHost()) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("remote->GetBrowserHost()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1944); AnnotateMozCrashReason("MOZ_ASSERT" "(" "remote->GetBrowserHost()" ")"); do { *((volatile int*)__null) = 1944; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1945 | |||||
1946 | if (oldRemote && oldRemote != remote) { | ||||
1947 | Unused << NS_WARN_IF(nsContentUtils::GetCommonBrowserParentAncestor(NS_warn_if_impl(nsContentUtils::GetCommonBrowserParentAncestor ( remote, oldRemote) != remote, "nsContentUtils::GetCommonBrowserParentAncestor( remote, oldRemote) != remote" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1948) | ||||
1948 | remote, oldRemote) != remote)NS_warn_if_impl(nsContentUtils::GetCommonBrowserParentAncestor ( remote, oldRemote) != remote, "nsContentUtils::GetCommonBrowserParentAncestor( remote, oldRemote) != remote" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1948); | ||||
1949 | remote = oldRemote; | ||||
1950 | } | ||||
1951 | |||||
1952 | DispatchCrossProcessMouseExitEvents(mouseEvent, remote, nullptr, true); | ||||
1953 | return; | ||||
1954 | } | ||||
1955 | |||||
1956 | if (BrowserParent* pointerLockedRemote = | ||||
1957 | PointerLockManager::GetLockedRemoteTarget()) { | ||||
1958 | remote = pointerLockedRemote; | ||||
1959 | } else if (BrowserParent* pointerCapturedRemote = | ||||
1960 | PointerEventHandler::GetPointerCapturingRemoteTarget( | ||||
1961 | mouseEvent->pointerId)) { | ||||
1962 | remote = pointerCapturedRemote; | ||||
1963 | } else if (BrowserParent* capturingRemote = | ||||
1964 | PresShell::GetCapturingRemoteTarget()) { | ||||
1965 | remote = capturingRemote; | ||||
1966 | } | ||||
1967 | |||||
1968 | // If a mouse is over a remote target A, and then moves to | ||||
1969 | // remote target B, we'd deliver the event directly to remote target B | ||||
1970 | // after the moving, A would never get notified that the mouse left. | ||||
1971 | // So we generate a exit event to notify A after the move. | ||||
1972 | // XXXedgar, if the synthesized mouse events could deliver to the correct | ||||
1973 | // process directly (see | ||||
1974 | // https://bugzilla.mozilla.org/show_bug.cgi?id=1549355), we probably | ||||
1975 | // don't need to check mReason then. | ||||
1976 | if (mouseEvent->mReason == WidgetMouseEvent::eReal && | ||||
1977 | remote != oldRemote) { | ||||
1978 | MOZ_ASSERT(mouseEvent->mMessage != eMouseExitFromWidget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mouseEvent->mMessage != eMouseExitFromWidget)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mouseEvent->mMessage != eMouseExitFromWidget))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("mouseEvent->mMessage != eMouseExitFromWidget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 1978); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mouseEvent->mMessage != eMouseExitFromWidget" ")"); do { *((volatile int*)__null) = 1978; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
1979 | if (oldRemote) { | ||||
1980 | BrowserParent* commonAncestor = | ||||
1981 | nsContentUtils::GetCommonBrowserParentAncestor(remote, oldRemote); | ||||
1982 | if (commonAncestor == oldRemote) { | ||||
1983 | // Mouse moves to the inner OOP frame, it is not a really exit. | ||||
1984 | DispatchCrossProcessMouseExitEvents( | ||||
1985 | mouseEvent, GetBrowserParentAncestor(remote), | ||||
1986 | GetBrowserParentAncestor(commonAncestor), false); | ||||
1987 | } else if (commonAncestor == remote) { | ||||
1988 | // Mouse moves to the outer OOP frame, it is a really exit. | ||||
1989 | DispatchCrossProcessMouseExitEvents(mouseEvent, oldRemote, | ||||
1990 | commonAncestor, true); | ||||
1991 | } else { | ||||
1992 | // Mouse moves to OOP frame in other subtree, it is a really exit, | ||||
1993 | // need to notify all its ancestors before common ancestor about the | ||||
1994 | // exit. | ||||
1995 | DispatchCrossProcessMouseExitEvents(mouseEvent, oldRemote, | ||||
1996 | commonAncestor, true); | ||||
1997 | if (commonAncestor) { | ||||
1998 | UniquePtr<WidgetMouseEvent> mouseExitEvent = | ||||
1999 | CreateMouseOrPointerWidgetEvent(mouseEvent, | ||||
2000 | eMouseExitFromWidget, | ||||
2001 | mouseEvent->mRelatedTarget); | ||||
2002 | mouseExitEvent->mExitFrom = | ||||
2003 | Some(WidgetMouseEvent::ePuppetParentToPuppetChild); | ||||
2004 | commonAncestor->SendRealMouseEvent(*mouseExitEvent); | ||||
2005 | } | ||||
2006 | } | ||||
2007 | } | ||||
2008 | |||||
2009 | if (mouseEvent->mMessage != eMouseExitFromWidget && | ||||
2010 | mouseEvent->mMessage != eMouseEnterIntoWidget) { | ||||
2011 | // This is to make cursor would be updated correctly. | ||||
2012 | remote->MouseEnterIntoWidget(); | ||||
2013 | } | ||||
2014 | } | ||||
2015 | |||||
2016 | remote->SendRealMouseEvent(*mouseEvent); | ||||
2017 | return; | ||||
2018 | } | ||||
2019 | case eKeyboardEventClass: { | ||||
2020 | auto* keyboardEvent = aEvent->AsKeyboardEvent(); | ||||
2021 | if (aEvent->mMessage == eKeyUp) { | ||||
2022 | HandleKeyUpInteraction(keyboardEvent); | ||||
2023 | } | ||||
2024 | remote->SendRealKeyEvent(*keyboardEvent); | ||||
2025 | return; | ||||
2026 | } | ||||
2027 | case eWheelEventClass: { | ||||
2028 | if (BrowserParent* pointerLockedRemote = | ||||
2029 | PointerLockManager::GetLockedRemoteTarget()) { | ||||
2030 | remote = pointerLockedRemote; | ||||
2031 | } | ||||
2032 | remote->SendMouseWheelEvent(*aEvent->AsWheelEvent()); | ||||
2033 | return; | ||||
2034 | } | ||||
2035 | case eTouchEventClass: { | ||||
2036 | // Let the child process synthesize a mouse event if needed, and | ||||
2037 | // ensure we don't synthesize one in this process. | ||||
2038 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
2039 | remote->SendRealTouchEvent(*aEvent->AsTouchEvent()); | ||||
2040 | return; | ||||
2041 | } | ||||
2042 | case eDragEventClass: { | ||||
2043 | RefPtr<BrowserParent> browserParent = remote; | ||||
2044 | browserParent->MaybeInvokeDragSession(aEvent->mMessage); | ||||
2045 | |||||
2046 | RefPtr<nsIWidget> widget = browserParent->GetTopLevelWidget(); | ||||
2047 | nsCOMPtr<nsIDragSession> dragSession = | ||||
2048 | nsContentUtils::GetDragSession(widget); | ||||
2049 | uint32_t dropEffect = nsIDragService::DRAGDROP_ACTION_NONE; | ||||
2050 | uint32_t action = nsIDragService::DRAGDROP_ACTION_NONE; | ||||
2051 | nsCOMPtr<nsIPrincipal> principal; | ||||
2052 | nsCOMPtr<nsIContentSecurityPolicy> csp; | ||||
2053 | |||||
2054 | if (dragSession) { | ||||
2055 | dragSession->DragEventDispatchedToChildProcess(); | ||||
2056 | dragSession->GetDragAction(&action); | ||||
2057 | dragSession->GetTriggeringPrincipal(getter_AddRefs(principal)); | ||||
2058 | dragSession->GetCsp(getter_AddRefs(csp)); | ||||
2059 | RefPtr<DataTransfer> initialDataTransfer = | ||||
2060 | dragSession->GetDataTransfer(); | ||||
2061 | if (initialDataTransfer) { | ||||
2062 | dropEffect = initialDataTransfer->DropEffectInt(); | ||||
2063 | } | ||||
2064 | } | ||||
2065 | |||||
2066 | browserParent->SendRealDragEvent(*aEvent->AsDragEvent(), action, | ||||
2067 | dropEffect, principal, csp); | ||||
2068 | return; | ||||
2069 | } | ||||
2070 | default: { | ||||
2071 | MOZ_CRASH("Attempt to send non-whitelisted event?")do { do { } while (false); MOZ_ReportCrash("" "Attempt to send non-whitelisted event?" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2071); AnnotateMozCrashReason("MOZ_CRASH(" "Attempt to send non-whitelisted event?" ")"); do { *((volatile int*)__null) = 2071; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | ||||
2072 | } | ||||
2073 | } | ||||
2074 | } | ||||
2075 | |||||
2076 | bool EventStateManager::IsRemoteTarget(nsIContent* target) { | ||||
2077 | return BrowserParent::GetFrom(target) || BrowserBridgeChild::GetFrom(target); | ||||
2078 | } | ||||
2079 | |||||
2080 | bool EventStateManager::IsTopLevelRemoteTarget(nsIContent* target) { | ||||
2081 | return !!BrowserParent::GetFrom(target); | ||||
2082 | } | ||||
2083 | |||||
2084 | bool EventStateManager::HandleCrossProcessEvent(WidgetEvent* aEvent, | ||||
2085 | nsEventStatus* aStatus) { | ||||
2086 | if (!aEvent->CanBeSentToRemoteProcess()) { | ||||
2087 | return false; | ||||
2088 | } | ||||
2089 | |||||
2090 | MOZ_ASSERT(!aEvent->HasBeenPostedToRemoteProcess(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aEvent->HasBeenPostedToRemoteProcess())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aEvent->HasBeenPostedToRemoteProcess()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aEvent->HasBeenPostedToRemoteProcess()" " (" "Why do we need to post same event to remote processes again?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2091); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aEvent->HasBeenPostedToRemoteProcess()" ") (" "Why do we need to post same event to remote processes again?" ")"); do { *((volatile int*)__null) = 2091; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
2091 | "Why do we need to post same event to remote processes again?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aEvent->HasBeenPostedToRemoteProcess())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aEvent->HasBeenPostedToRemoteProcess()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aEvent->HasBeenPostedToRemoteProcess()" " (" "Why do we need to post same event to remote processes again?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2091); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aEvent->HasBeenPostedToRemoteProcess()" ") (" "Why do we need to post same event to remote processes again?" ")"); do { *((volatile int*)__null) = 2091; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
2092 | |||||
2093 | // Collect the remote event targets we're going to forward this | ||||
2094 | // event to. | ||||
2095 | // | ||||
2096 | // NB: the elements of |remoteTargets| must be unique, for correctness. | ||||
2097 | AutoTArray<RefPtr<BrowserParent>, 1> remoteTargets; | ||||
2098 | if (aEvent->mClass != eTouchEventClass || aEvent->mMessage == eTouchStart) { | ||||
2099 | // If this event only has one target, and it's remote, add it to | ||||
2100 | // the array. | ||||
2101 | nsIFrame* frame = aEvent->mMessage == eDragExit | ||||
2102 | ? sLastDragOverFrame.GetFrame() | ||||
2103 | : GetEventTarget(); | ||||
2104 | nsIContent* target = frame ? frame->GetContent() : nullptr; | ||||
2105 | if (BrowserParent* remoteTarget = BrowserParent::GetFrom(target)) { | ||||
2106 | remoteTargets.AppendElement(remoteTarget); | ||||
2107 | } | ||||
2108 | } else { | ||||
2109 | // This is a touch event with possibly multiple touch points. | ||||
2110 | // Each touch point may have its own target. So iterate through | ||||
2111 | // all of them and collect the unique set of targets for event | ||||
2112 | // forwarding. | ||||
2113 | // | ||||
2114 | // This loop is similar to the one used in | ||||
2115 | // PresShell::DispatchTouchEvent(). | ||||
2116 | const WidgetTouchEvent::TouchArray& touches = | ||||
2117 | aEvent->AsTouchEvent()->mTouches; | ||||
2118 | for (uint32_t i = 0; i < touches.Length(); ++i) { | ||||
2119 | Touch* touch = touches[i]; | ||||
2120 | // NB: the |mChanged| check is an optimization, subprocesses can | ||||
2121 | // compute this for themselves. If the touch hasn't changed, we | ||||
2122 | // may be able to avoid forwarding the event entirely (which is | ||||
2123 | // not free). | ||||
2124 | if (!touch || !touch->mChanged) { | ||||
2125 | continue; | ||||
2126 | } | ||||
2127 | nsCOMPtr<EventTarget> targetPtr = touch->mTarget; | ||||
2128 | if (!targetPtr) { | ||||
2129 | continue; | ||||
2130 | } | ||||
2131 | nsCOMPtr<nsIContent> target = do_QueryInterface(targetPtr); | ||||
2132 | BrowserParent* remoteTarget = BrowserParent::GetFrom(target); | ||||
2133 | if (remoteTarget && !remoteTargets.Contains(remoteTarget)) { | ||||
2134 | remoteTargets.AppendElement(remoteTarget); | ||||
2135 | } | ||||
2136 | } | ||||
2137 | } | ||||
2138 | |||||
2139 | if (remoteTargets.Length() == 0) { | ||||
2140 | return false; | ||||
2141 | } | ||||
2142 | |||||
2143 | // Dispatch the event to the remote target. | ||||
2144 | for (uint32_t i = 0; i < remoteTargets.Length(); ++i) { | ||||
2145 | DispatchCrossProcessEvent(aEvent, remoteTargets[i], aStatus); | ||||
2146 | } | ||||
2147 | return aEvent->HasBeenPostedToRemoteProcess(); | ||||
2148 | } | ||||
2149 | |||||
2150 | // | ||||
2151 | // CreateClickHoldTimer | ||||
2152 | // | ||||
2153 | // Fire off a timer for determining if the user wants click-hold. This timer | ||||
2154 | // is a one-shot that will be cancelled when the user moves enough to fire | ||||
2155 | // a drag. | ||||
2156 | // | ||||
2157 | void EventStateManager::CreateClickHoldTimer(nsPresContext* inPresContext, | ||||
2158 | nsIFrame* inDownFrame, | ||||
2159 | WidgetGUIEvent* inMouseDownEvent) { | ||||
2160 | if (!inMouseDownEvent->IsTrusted() || | ||||
2161 | IsTopLevelRemoteTarget(mGestureDownContent) || | ||||
2162 | PointerLockManager::IsLocked()) { | ||||
2163 | return; | ||||
2164 | } | ||||
2165 | |||||
2166 | // just to be anal (er, safe) | ||||
2167 | if (mClickHoldTimer) { | ||||
2168 | mClickHoldTimer->Cancel(); | ||||
2169 | mClickHoldTimer = nullptr; | ||||
2170 | } | ||||
2171 | |||||
2172 | // if content clicked on has a popup, don't even start the timer | ||||
2173 | // since we'll end up conflicting and both will show. | ||||
2174 | if (mGestureDownContent && | ||||
2175 | nsContentUtils::HasNonEmptyAttr(mGestureDownContent, kNameSpaceID_None, | ||||
2176 | nsGkAtoms::popup)) { | ||||
2177 | return; | ||||
2178 | } | ||||
2179 | |||||
2180 | int32_t clickHoldDelay = StaticPrefs::ui_click_hold_context_menus_delay(); | ||||
2181 | NS_NewTimerWithFuncCallback( | ||||
2182 | getter_AddRefs(mClickHoldTimer), sClickHoldCallback, this, clickHoldDelay, | ||||
2183 | nsITimer::TYPE_ONE_SHOT, "EventStateManager::CreateClickHoldTimer"); | ||||
2184 | } // CreateClickHoldTimer | ||||
2185 | |||||
2186 | // | ||||
2187 | // KillClickHoldTimer | ||||
2188 | // | ||||
2189 | // Stop the timer that would show the context menu dead in its tracks | ||||
2190 | // | ||||
2191 | void EventStateManager::KillClickHoldTimer() { | ||||
2192 | if (mClickHoldTimer) { | ||||
2193 | mClickHoldTimer->Cancel(); | ||||
2194 | mClickHoldTimer = nullptr; | ||||
2195 | } | ||||
2196 | } | ||||
2197 | |||||
2198 | // | ||||
2199 | // sClickHoldCallback | ||||
2200 | // | ||||
2201 | // This fires after the mouse has been down for a certain length of time. | ||||
2202 | // | ||||
2203 | void EventStateManager::sClickHoldCallback(nsITimer* aTimer, void* aESM) { | ||||
2204 | RefPtr<EventStateManager> self = static_cast<EventStateManager*>(aESM); | ||||
2205 | if (self) { | ||||
2206 | self->FireContextClick(); | ||||
2207 | } | ||||
2208 | |||||
2209 | // NOTE: |aTimer| and |self->mAutoHideTimer| are invalid after calling | ||||
2210 | // ClosePopup(); | ||||
2211 | |||||
2212 | } // sAutoHideCallback | ||||
2213 | |||||
2214 | // | ||||
2215 | // FireContextClick | ||||
2216 | // | ||||
2217 | // If we're this far, our timer has fired, which means the mouse has been down | ||||
2218 | // for a certain period of time and has not moved enough to generate a | ||||
2219 | // dragGesture. We can be certain the user wants a context-click at this stage, | ||||
2220 | // so generate a dom event and fire it in. | ||||
2221 | // | ||||
2222 | // After the event fires, check if PreventDefault() has been set on the event | ||||
2223 | // which means that someone either ate the event or put up a context menu. This | ||||
2224 | // is our cue to stop tracking the drag gesture. If we always did this, | ||||
2225 | // draggable items w/out a context menu wouldn't be draggable after a certain | ||||
2226 | // length of time, which is _not_ what we want. | ||||
2227 | // | ||||
2228 | void EventStateManager::FireContextClick() { | ||||
2229 | if (!mGestureDownContent || !mPresContext || PointerLockManager::IsLocked()) { | ||||
2230 | return; | ||||
2231 | } | ||||
2232 | |||||
2233 | #ifdef XP_MACOSX | ||||
2234 | // Hack to ensure that we don't show a context menu when the user | ||||
2235 | // let go of the mouse after a long cpu-hogging operation prevented | ||||
2236 | // us from handling any OS events. See bug 117589. | ||||
2237 | if (!CGEventSourceButtonState(kCGEventSourceStateCombinedSessionState, | ||||
2238 | kCGMouseButtonLeft)) | ||||
2239 | return; | ||||
2240 | #endif | ||||
2241 | |||||
2242 | nsEventStatus status = nsEventStatus_eIgnore; | ||||
2243 | |||||
2244 | // Dispatch to the DOM. We have to fake out the ESM and tell it that the | ||||
2245 | // current target frame is actually where the mouseDown occurred, otherwise it | ||||
2246 | // will use the frame the mouse is currently over which may or may not be | ||||
2247 | // the same. (Note: saari and I have decided that we don't have to reset | ||||
2248 | // |mCurrentTarget| when we're through because no one else is doing anything | ||||
2249 | // more with this event and it will get reset on the very next event to the | ||||
2250 | // correct frame). | ||||
2251 | mCurrentTarget = mPresContext->GetPrimaryFrameFor(mGestureDownContent); | ||||
2252 | // make sure the widget sticks around | ||||
2253 | nsCOMPtr<nsIWidget> targetWidget; | ||||
2254 | if (mCurrentTarget && (targetWidget = mCurrentTarget->GetNearestWidget())) { | ||||
2255 | NS_ASSERTION(do { if (!(mPresContext == mCurrentTarget->PresContext())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "a prescontext returned a primary frame that didn't belong to it?" , "mPresContext == mCurrentTarget->PresContext()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2257); MOZ_PretendNoReturn(); } } while (0) | ||||
2256 | mPresContext == mCurrentTarget->PresContext(),do { if (!(mPresContext == mCurrentTarget->PresContext())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "a prescontext returned a primary frame that didn't belong to it?" , "mPresContext == mCurrentTarget->PresContext()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2257); MOZ_PretendNoReturn(); } } while (0) | ||||
2257 | "a prescontext returned a primary frame that didn't belong to it?")do { if (!(mPresContext == mCurrentTarget->PresContext())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "a prescontext returned a primary frame that didn't belong to it?" , "mPresContext == mCurrentTarget->PresContext()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2257); MOZ_PretendNoReturn(); } } while (0); | ||||
2258 | |||||
2259 | // before dispatching, check that we're not on something that | ||||
2260 | // doesn't get a context menu | ||||
2261 | bool allowedToDispatch = true; | ||||
2262 | |||||
2263 | if (mGestureDownContent->IsAnyOfXULElements(nsGkAtoms::scrollbar, | ||||
2264 | nsGkAtoms::scrollbarbutton, | ||||
2265 | nsGkAtoms::button)) { | ||||
2266 | allowedToDispatch = false; | ||||
2267 | } else if (mGestureDownContent->IsXULElement(nsGkAtoms::toolbarbutton)) { | ||||
2268 | // a <toolbarbutton> that has the container attribute set | ||||
2269 | // will already have its own dropdown. | ||||
2270 | if (nsContentUtils::HasNonEmptyAttr( | ||||
2271 | mGestureDownContent, kNameSpaceID_None, nsGkAtoms::container)) { | ||||
2272 | allowedToDispatch = false; | ||||
2273 | } else { | ||||
2274 | // If the toolbar button has an open menu, don't attempt to open | ||||
2275 | // a second menu | ||||
2276 | if (mGestureDownContent->IsElement() && | ||||
2277 | mGestureDownContent->AsElement()->AttrValueIs( | ||||
2278 | kNameSpaceID_None, nsGkAtoms::open, nsGkAtoms::_true, | ||||
2279 | eCaseMatters)) { | ||||
2280 | allowedToDispatch = false; | ||||
2281 | } | ||||
2282 | } | ||||
2283 | } else if (mGestureDownContent->IsHTMLElement()) { | ||||
2284 | if (const auto* formCtrl = | ||||
2285 | nsIFormControl::FromNode(mGestureDownContent)) { | ||||
2286 | allowedToDispatch = | ||||
2287 | formCtrl->IsTextControl(/*aExcludePassword*/ false) || | ||||
2288 | formCtrl->ControlType() == FormControlType::InputFile; | ||||
2289 | } else if (mGestureDownContent->IsAnyOfHTMLElements( | ||||
2290 | nsGkAtoms::embed, nsGkAtoms::object, nsGkAtoms::label)) { | ||||
2291 | allowedToDispatch = false; | ||||
2292 | } | ||||
2293 | } | ||||
2294 | |||||
2295 | if (allowedToDispatch) { | ||||
2296 | // init the event while mCurrentTarget is still good | ||||
2297 | Maybe<WidgetPointerEvent> pointerEvent; | ||||
2298 | Maybe<WidgetMouseEvent> mouseEvent; | ||||
2299 | if (StaticPrefs:: | ||||
2300 | dom_w3c_pointer_events_dispatch_click_as_pointer_event()) { | ||||
2301 | pointerEvent.emplace(true, eContextMenu, targetWidget); | ||||
2302 | } else { | ||||
2303 | mouseEvent.emplace(true, eContextMenu, targetWidget, | ||||
2304 | WidgetMouseEvent::eReal); | ||||
2305 | } | ||||
2306 | WidgetMouseEvent& event = | ||||
2307 | pointerEvent.isSome() ? pointerEvent.ref() : mouseEvent.ref(); | ||||
2308 | event.mClickCount = 1; | ||||
2309 | FillInEventFromGestureDown(&event); | ||||
2310 | |||||
2311 | // we need to forget the clicking content and click count for the | ||||
2312 | // following eMouseUp event when click-holding context menus | ||||
2313 | LastMouseDownInfo& mouseDownInfo = GetLastMouseDownInfo(event.mButton); | ||||
2314 | mouseDownInfo.mLastMouseDownContent = nullptr; | ||||
2315 | mouseDownInfo.mClickCount = 0; | ||||
2316 | mouseDownInfo.mLastMouseDownInputControlType = Nothing(); | ||||
2317 | |||||
2318 | // stop selection tracking, we're in control now | ||||
2319 | if (mCurrentTarget) { | ||||
2320 | RefPtr<nsFrameSelection> frameSel = mCurrentTarget->GetFrameSelection(); | ||||
2321 | |||||
2322 | if (frameSel && frameSel->GetDragState()) { | ||||
2323 | // note that this can cause selection changed events to fire if we're | ||||
2324 | // in a text field, which will null out mCurrentTarget | ||||
2325 | frameSel->SetDragState(false); | ||||
2326 | } | ||||
2327 | } | ||||
2328 | |||||
2329 | AutoHandlingUserInputStatePusher userInpStatePusher(true, &event); | ||||
2330 | |||||
2331 | // dispatch to DOM | ||||
2332 | RefPtr<nsPresContext> presContext = mPresContext; | ||||
2333 | |||||
2334 | // The contextmenu event handled by PresShell will apply to elements (not | ||||
2335 | // all nodes) correctly and will be dispatched to EventStateManager for | ||||
2336 | // further handling preventing click event and stopping tracking drag | ||||
2337 | // gesture. | ||||
2338 | if (RefPtr<PresShell> presShell = presContext->GetPresShell()) { | ||||
2339 | presShell->HandleEvent(mCurrentTarget, &event, false, &status); | ||||
2340 | } | ||||
2341 | |||||
2342 | // We don't need to dispatch to frame handling because no frames | ||||
2343 | // watch eContextMenu except for nsMenuFrame and that's only for | ||||
2344 | // dismissal. That's just as well since we don't really know | ||||
2345 | // which frame to send it to. | ||||
2346 | } | ||||
2347 | } | ||||
2348 | |||||
2349 | // stop tracking a drag whatever the event has been handled or not. | ||||
2350 | StopTrackingDragGesture(true); | ||||
2351 | |||||
2352 | KillClickHoldTimer(); | ||||
2353 | |||||
2354 | } // FireContextClick | ||||
2355 | |||||
2356 | // | ||||
2357 | // BeginTrackingDragGesture | ||||
2358 | // | ||||
2359 | // Record that the mouse has gone down and that we should move to TRACKING state | ||||
2360 | // of d&d gesture tracker. | ||||
2361 | // | ||||
2362 | // We also use this to track click-hold context menus. When the mouse goes down, | ||||
2363 | // fire off a short timer. If the timer goes off and we have yet to fire the | ||||
2364 | // drag gesture (ie, the mouse hasn't moved a certain distance), then we can | ||||
2365 | // assume the user wants a click-hold, so fire a context-click event. We only | ||||
2366 | // want to cancel the drag gesture if the context-click event is handled. | ||||
2367 | // | ||||
2368 | void EventStateManager::BeginTrackingDragGesture(nsPresContext* aPresContext, | ||||
2369 | WidgetMouseEvent* inDownEvent, | ||||
2370 | nsIFrame* inDownFrame) { | ||||
2371 | if (!inDownEvent->mWidget) { | ||||
2372 | return; | ||||
2373 | } | ||||
2374 | |||||
2375 | // Note that |inDownEvent| could be either a mouse down event or a | ||||
2376 | // synthesized mouse move event. | ||||
2377 | SetGestureDownPoint(inDownEvent); | ||||
2378 | |||||
2379 | if (inDownFrame) { | ||||
2380 | inDownFrame->GetContentForEvent(inDownEvent, | ||||
2381 | getter_AddRefs(mGestureDownContent)); | ||||
2382 | |||||
2383 | mGestureDownFrameOwner = inDownFrame->GetContent(); | ||||
2384 | if (!mGestureDownFrameOwner) { | ||||
2385 | mGestureDownFrameOwner = mGestureDownContent; | ||||
2386 | } | ||||
2387 | } | ||||
2388 | mGestureModifiers = inDownEvent->mModifiers; | ||||
2389 | mGestureDownButtons = inDownEvent->mButtons; | ||||
2390 | mGestureDownButton = inDownEvent->mButton; | ||||
2391 | |||||
2392 | if (inDownEvent->mMessage != eMouseTouchDrag && | ||||
2393 | StaticPrefs::ui_click_hold_context_menus()) { | ||||
2394 | // fire off a timer to track click-hold | ||||
2395 | CreateClickHoldTimer(aPresContext, inDownFrame, inDownEvent); | ||||
2396 | } | ||||
2397 | } | ||||
2398 | |||||
2399 | void EventStateManager::SetGestureDownPoint(WidgetGUIEvent* aEvent) { | ||||
2400 | mGestureDownPoint = | ||||
2401 | GetEventRefPoint(aEvent) + aEvent->mWidget->WidgetToScreenOffset(); | ||||
2402 | } | ||||
2403 | |||||
2404 | LayoutDeviceIntPoint EventStateManager::GetEventRefPoint( | ||||
2405 | WidgetEvent* aEvent) const { | ||||
2406 | auto touchEvent = aEvent->AsTouchEvent(); | ||||
2407 | return (touchEvent && !touchEvent->mTouches.IsEmpty()) | ||||
2408 | ? aEvent->AsTouchEvent()->mTouches[0]->mRefPoint | ||||
2409 | : aEvent->mRefPoint; | ||||
2410 | } | ||||
2411 | |||||
2412 | void EventStateManager::BeginTrackingRemoteDragGesture( | ||||
2413 | nsIContent* aContent, RemoteDragStartData* aDragStartData) { | ||||
2414 | mGestureDownContent = aContent; | ||||
2415 | mGestureDownFrameOwner = aContent; | ||||
2416 | mGestureDownInTextControl = | ||||
2417 | aContent && aContent->IsInNativeAnonymousSubtree() && | ||||
2418 | TextControlElement::FromNodeOrNull( | ||||
2419 | aContent->GetClosestNativeAnonymousSubtreeRootParentOrHost()); | ||||
2420 | mGestureDownDragStartData = aDragStartData; | ||||
2421 | } | ||||
2422 | |||||
2423 | // | ||||
2424 | // StopTrackingDragGesture | ||||
2425 | // | ||||
2426 | // Record that the mouse has gone back up so that we should leave the TRACKING | ||||
2427 | // state of d&d gesture tracker and return to the START state. | ||||
2428 | // | ||||
2429 | void EventStateManager::StopTrackingDragGesture(bool aClearInChildProcesses) { | ||||
2430 | mGestureDownContent = nullptr; | ||||
2431 | mGestureDownFrameOwner = nullptr; | ||||
2432 | mGestureDownInTextControl = false; | ||||
2433 | mGestureDownDragStartData = nullptr; | ||||
2434 | |||||
2435 | // If a content process starts a drag but the mouse is released before the | ||||
2436 | // parent starts the actual drag, the content process will think a drag is | ||||
2437 | // still happening. Inform any child processes with active drags that the drag | ||||
2438 | // should be stopped. | ||||
2439 | if (aClearInChildProcesses) { | ||||
2440 | nsCOMPtr<nsIDragService> dragService = | ||||
2441 | do_GetService("@mozilla.org/widget/dragservice;1"); | ||||
2442 | if (dragService) { | ||||
2443 | RefPtr<nsIDragSession> dragSession = | ||||
2444 | dragService->GetCurrentSession(mPresContext->GetRootWidget()); | ||||
2445 | if (!dragSession) { | ||||
2446 | // Only notify if there isn't a drag session active. | ||||
2447 | dragService->RemoveAllBrowsers(); | ||||
2448 | } | ||||
2449 | } | ||||
2450 | } | ||||
2451 | } | ||||
2452 | |||||
2453 | void EventStateManager::FillInEventFromGestureDown(WidgetMouseEvent* aEvent) { | ||||
2454 | NS_ASSERTION(aEvent->mWidget == mCurrentTarget->GetNearestWidget(),do { if (!(aEvent->mWidget == mCurrentTarget->GetNearestWidget ())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Incorrect widget in event" , "aEvent->mWidget == mCurrentTarget->GetNearestWidget()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2455); MOZ_PretendNoReturn(); } } while (0) | ||||
2455 | "Incorrect widget in event")do { if (!(aEvent->mWidget == mCurrentTarget->GetNearestWidget ())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Incorrect widget in event" , "aEvent->mWidget == mCurrentTarget->GetNearestWidget()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2455); MOZ_PretendNoReturn(); } } while (0); | ||||
2456 | |||||
2457 | // Set the coordinates in the new event to the coordinates of | ||||
2458 | // the old event, adjusted for the fact that the widget might be | ||||
2459 | // different | ||||
2460 | aEvent->mRefPoint = | ||||
2461 | mGestureDownPoint - aEvent->mWidget->WidgetToScreenOffset(); | ||||
2462 | aEvent->mModifiers = mGestureModifiers; | ||||
2463 | aEvent->mButtons = mGestureDownButtons; | ||||
2464 | if (aEvent->mMessage == eContextMenu) { | ||||
2465 | aEvent->mButton = mGestureDownButton; | ||||
2466 | } | ||||
2467 | } | ||||
2468 | |||||
2469 | void EventStateManager::MaybeFirePointerCancel(WidgetInputEvent* aEvent) { | ||||
2470 | RefPtr<PresShell> presShell = mPresContext->GetPresShell(); | ||||
2471 | AutoWeakFrame targetFrame = mCurrentTarget; | ||||
2472 | |||||
2473 | if (!presShell || !targetFrame) { | ||||
2474 | return; | ||||
2475 | } | ||||
2476 | |||||
2477 | nsCOMPtr<nsIContent> content; | ||||
2478 | targetFrame->GetContentForEvent(aEvent, getter_AddRefs(content)); | ||||
2479 | if (!content) { | ||||
2480 | return; | ||||
2481 | } | ||||
2482 | |||||
2483 | nsEventStatus status = nsEventStatus_eIgnore; | ||||
2484 | |||||
2485 | if (WidgetMouseEvent* aMouseEvent = aEvent->AsMouseEvent()) { | ||||
2486 | WidgetPointerEvent event(*aMouseEvent); | ||||
2487 | PointerEventHandler::InitPointerEventFromMouse(&event, aMouseEvent, | ||||
2488 | ePointerCancel); | ||||
2489 | |||||
2490 | event.convertToPointer = false; | ||||
2491 | presShell->HandleEventWithTarget(&event, targetFrame, content, &status); | ||||
2492 | } else if (WidgetTouchEvent* aTouchEvent = aEvent->AsTouchEvent()) { | ||||
2493 | WidgetPointerEvent event(aTouchEvent->IsTrusted(), ePointerCancel, | ||||
2494 | aTouchEvent->mWidget); | ||||
2495 | |||||
2496 | PointerEventHandler::InitPointerEventFromTouch(event, *aTouchEvent, | ||||
2497 | *aTouchEvent->mTouches[0]); | ||||
2498 | |||||
2499 | event.convertToPointer = false; | ||||
2500 | presShell->HandleEventWithTarget(&event, targetFrame, content, &status); | ||||
2501 | } else { | ||||
2502 | MOZ_ASSERT(false)do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2502); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ")") ; do { *((volatile int*)__null) = 2502; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
2503 | } | ||||
2504 | |||||
2505 | // HandleEventWithTarget clears out mCurrentTarget, which may be used in the | ||||
2506 | // caller GenerateDragGesture. We have to restore mCurrentTarget. | ||||
2507 | mCurrentTarget = targetFrame; | ||||
2508 | } | ||||
2509 | |||||
2510 | bool EventStateManager::IsEventOutsideDragThreshold( | ||||
2511 | WidgetInputEvent* aEvent) const { | ||||
2512 | static int32_t sPixelThresholdX = 0; | ||||
2513 | static int32_t sPixelThresholdY = 0; | ||||
2514 | |||||
2515 | if (!sPixelThresholdX) { | ||||
2516 | sPixelThresholdX = | ||||
2517 | LookAndFeel::GetInt(LookAndFeel::IntID::DragThresholdX, 0); | ||||
2518 | sPixelThresholdY = | ||||
2519 | LookAndFeel::GetInt(LookAndFeel::IntID::DragThresholdY, 0); | ||||
2520 | if (sPixelThresholdX <= 0) { | ||||
2521 | sPixelThresholdX = 5; | ||||
2522 | } | ||||
2523 | if (sPixelThresholdY <= 0) { | ||||
2524 | sPixelThresholdY = 5; | ||||
2525 | } | ||||
2526 | } | ||||
2527 | |||||
2528 | LayoutDeviceIntPoint pt = | ||||
2529 | aEvent->mWidget->WidgetToScreenOffset() + GetEventRefPoint(aEvent); | ||||
2530 | LayoutDeviceIntPoint distance = pt - mGestureDownPoint; | ||||
2531 | return Abs(distance.x) > sPixelThresholdX || | ||||
2532 | Abs(distance.y) > sPixelThresholdY; | ||||
2533 | } | ||||
2534 | |||||
2535 | // | ||||
2536 | // GenerateDragGesture | ||||
2537 | // | ||||
2538 | // If we're in the TRACKING state of the d&d gesture tracker, check the current | ||||
2539 | // position of the mouse in relation to the old one. If we've moved a sufficient | ||||
2540 | // amount from the mouse down, then fire off a drag gesture event. | ||||
2541 | void EventStateManager::GenerateDragGesture(nsPresContext* aPresContext, | ||||
2542 | WidgetInputEvent* aEvent) { | ||||
2543 | NS_ASSERTION(aPresContext, "This shouldn't happen.")do { if (!(aPresContext)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "This shouldn't happen.", "aPresContext", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2543); MOZ_PretendNoReturn(); } } while (0); | ||||
2544 | if (!IsTrackingDragGesture()) { | ||||
2545 | return; | ||||
2546 | } | ||||
2547 | |||||
2548 | AutoWeakFrame targetFrameBefore = mCurrentTarget; | ||||
2549 | auto autoRestore = MakeScopeExit([&] { mCurrentTarget = targetFrameBefore; }); | ||||
2550 | mCurrentTarget = mGestureDownFrameOwner->GetPrimaryFrame(); | ||||
2551 | |||||
2552 | if (!mCurrentTarget || !mCurrentTarget->GetNearestWidget()) { | ||||
2553 | StopTrackingDragGesture(true); | ||||
2554 | return; | ||||
2555 | } | ||||
2556 | |||||
2557 | // Check if selection is tracking drag gestures, if so | ||||
2558 | // don't interfere! | ||||
2559 | if (mCurrentTarget) { | ||||
2560 | RefPtr<nsFrameSelection> frameSel = mCurrentTarget->GetFrameSelection(); | ||||
2561 | if (frameSel && frameSel->GetDragState()) { | ||||
2562 | StopTrackingDragGesture(true); | ||||
2563 | return; | ||||
2564 | } | ||||
2565 | } | ||||
2566 | |||||
2567 | // If non-native code is capturing the mouse don't start a drag. | ||||
2568 | if (PresShell::IsMouseCapturePreventingDrag()) { | ||||
2569 | StopTrackingDragGesture(true); | ||||
2570 | return; | ||||
2571 | } | ||||
2572 | |||||
2573 | if (!IsEventOutsideDragThreshold(aEvent)) { | ||||
2574 | // To keep the old behavior, flush layout even if we don't start dnd. | ||||
2575 | FlushLayout(aPresContext); | ||||
2576 | return; | ||||
2577 | } | ||||
2578 | |||||
2579 | if (StaticPrefs::ui_click_hold_context_menus()) { | ||||
2580 | // stop the click-hold before we fire off the drag gesture, in case | ||||
2581 | // it takes a long time | ||||
2582 | KillClickHoldTimer(); | ||||
2583 | } | ||||
2584 | |||||
2585 | nsCOMPtr<nsIDocShell> docshell = aPresContext->GetDocShell(); | ||||
2586 | if (!docshell) { | ||||
2587 | return; | ||||
2588 | } | ||||
2589 | |||||
2590 | nsCOMPtr<nsPIDOMWindowOuter> window = docshell->GetWindow(); | ||||
2591 | if (!window) return; | ||||
2592 | |||||
2593 | RefPtr<DataTransfer> dataTransfer = | ||||
2594 | new DataTransfer(window, eDragStart, /* aIsExternal */ false, | ||||
2595 | /* aClipboardType */ Nothing()); | ||||
2596 | auto protectDataTransfer = MakeScopeExit([&] { | ||||
2597 | if (dataTransfer) { | ||||
2598 | dataTransfer->Disconnect(); | ||||
2599 | } | ||||
2600 | }); | ||||
2601 | |||||
2602 | RefPtr<Selection> selection; | ||||
2603 | RefPtr<RemoteDragStartData> remoteDragStartData; | ||||
2604 | nsCOMPtr<nsIContent> eventContent, targetContent; | ||||
2605 | nsCOMPtr<nsIPrincipal> principal; | ||||
2606 | nsCOMPtr<nsIContentSecurityPolicy> csp; | ||||
2607 | nsCOMPtr<nsICookieJarSettings> cookieJarSettings; | ||||
2608 | bool allowEmptyDataTransfer = false; | ||||
2609 | mCurrentTarget->GetContentForEvent(aEvent, getter_AddRefs(eventContent)); | ||||
2610 | if (eventContent) { | ||||
2611 | // If the content is a text node in a password field, we shouldn't | ||||
2612 | // allow to drag its raw text. Note that we've supported drag from | ||||
2613 | // password fields but dragging data was masked text. So, it doesn't | ||||
2614 | // make sense anyway. | ||||
2615 | if (eventContent->IsText() && eventContent->HasFlag(NS_MAYBE_MASKED)) { | ||||
2616 | // However, it makes sense to allow to drag selected password text | ||||
2617 | // when copying selected password is allowed because users may want | ||||
2618 | // to use drag and drop rather than copy and paste when web apps | ||||
2619 | // request to input password twice for conforming new password but | ||||
2620 | // they used password generator. | ||||
2621 | TextEditor* textEditor = | ||||
2622 | nsContentUtils::GetTextEditorFromAnonymousNodeWithoutCreation( | ||||
2623 | eventContent); | ||||
2624 | if (!textEditor || !textEditor->IsCopyToClipboardAllowed()) { | ||||
2625 | StopTrackingDragGesture(true); | ||||
2626 | return; | ||||
2627 | } | ||||
2628 | } | ||||
2629 | DetermineDragTargetAndDefaultData( | ||||
2630 | window, eventContent, dataTransfer, &allowEmptyDataTransfer, | ||||
2631 | getter_AddRefs(selection), getter_AddRefs(remoteDragStartData), | ||||
2632 | getter_AddRefs(targetContent), getter_AddRefs(principal), | ||||
2633 | getter_AddRefs(csp), getter_AddRefs(cookieJarSettings)); | ||||
2634 | } | ||||
2635 | |||||
2636 | // Stop tracking the drag gesture now. This should stop us from | ||||
2637 | // reentering GenerateDragGesture inside DOM event processing. | ||||
2638 | // Pass false to avoid clearing the child process state since a real | ||||
2639 | // drag should be starting. | ||||
2640 | StopTrackingDragGesture(false); | ||||
2641 | |||||
2642 | if (!targetContent) return; | ||||
2643 | |||||
2644 | // Use our targetContent, now that we've determined it, as the | ||||
2645 | // parent object of the DataTransfer. | ||||
2646 | nsCOMPtr<nsIContent> parentContent = | ||||
2647 | targetContent->FindFirstNonChromeOnlyAccessContent(); | ||||
2648 | dataTransfer->SetParentObject(parentContent); | ||||
2649 | |||||
2650 | sLastDragOverFrame = nullptr; | ||||
2651 | nsCOMPtr<nsIWidget> widget = mCurrentTarget->GetNearestWidget(); | ||||
2652 | |||||
2653 | // get the widget from the target frame | ||||
2654 | WidgetDragEvent startEvent(aEvent->IsTrusted(), eDragStart, widget); | ||||
2655 | startEvent.mFlags.mIsSynthesizedForTests = | ||||
2656 | aEvent->mFlags.mIsSynthesizedForTests; | ||||
2657 | FillInEventFromGestureDown(&startEvent); | ||||
2658 | |||||
2659 | startEvent.mDataTransfer = dataTransfer; | ||||
2660 | if (aEvent->AsMouseEvent()) { | ||||
2661 | startEvent.mInputSource = aEvent->AsMouseEvent()->mInputSource; | ||||
2662 | } else if (aEvent->AsTouchEvent()) { | ||||
2663 | startEvent.mInputSource = MouseEvent_Binding::MOZ_SOURCE_TOUCH; | ||||
2664 | } else { | ||||
2665 | MOZ_ASSERT(false)do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2665); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ")") ; do { *((volatile int*)__null) = 2665; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
2666 | } | ||||
2667 | |||||
2668 | // Dispatch to the DOM. By setting mCurrentTarget we are faking | ||||
2669 | // out the ESM and telling it that the current target frame is | ||||
2670 | // actually where the mouseDown occurred, otherwise it will use | ||||
2671 | // the frame the mouse is currently over which may or may not be | ||||
2672 | // the same. | ||||
2673 | |||||
2674 | // Hold onto old target content through the event and reset after. | ||||
2675 | nsCOMPtr<nsIContent> targetBeforeEvent = mCurrentTargetContent; | ||||
2676 | |||||
2677 | // Set the current target to the content for the mouse down | ||||
2678 | mCurrentTargetContent = targetContent; | ||||
2679 | |||||
2680 | // Dispatch the dragstart event to the DOM. | ||||
2681 | nsEventStatus status = nsEventStatus_eIgnore; | ||||
2682 | EventDispatcher::Dispatch(targetContent, aPresContext, &startEvent, nullptr, | ||||
2683 | &status); | ||||
2684 | |||||
2685 | WidgetDragEvent* event = &startEvent; | ||||
2686 | |||||
2687 | nsCOMPtr<nsIObserverService> observerService = | ||||
2688 | mozilla::services::GetObserverService(); | ||||
2689 | // Emit observer event to allow addons to modify the DataTransfer | ||||
2690 | // object. | ||||
2691 | if (observerService) { | ||||
2692 | observerService->NotifyObservers(dataTransfer, "on-datatransfer-available", | ||||
2693 | nullptr); | ||||
2694 | } | ||||
2695 | |||||
2696 | if (status != nsEventStatus_eConsumeNoDefault) { | ||||
2697 | bool dragStarted = DoDefaultDragStart(aPresContext, event, dataTransfer, | ||||
2698 | allowEmptyDataTransfer, targetContent, | ||||
2699 | selection, remoteDragStartData, | ||||
2700 | principal, csp, cookieJarSettings); | ||||
2701 | if (dragStarted) { | ||||
2702 | sActiveESM = nullptr; | ||||
2703 | MaybeFirePointerCancel(aEvent); | ||||
2704 | aEvent->StopPropagation(); | ||||
2705 | } | ||||
2706 | } | ||||
2707 | |||||
2708 | // Reset mCurretTargetContent to what it was | ||||
2709 | mCurrentTargetContent = targetBeforeEvent; | ||||
2710 | |||||
2711 | // Now flush all pending notifications, for better responsiveness | ||||
2712 | // while dragging. | ||||
2713 | FlushLayout(aPresContext); | ||||
2714 | } // GenerateDragGesture | ||||
2715 | |||||
2716 | void EventStateManager::DetermineDragTargetAndDefaultData( | ||||
2717 | nsPIDOMWindowOuter* aWindow, nsIContent* aSelectionTarget, | ||||
2718 | DataTransfer* aDataTransfer, bool* aAllowEmptyDataTransfer, | ||||
2719 | Selection** aSelection, RemoteDragStartData** aRemoteDragStartData, | ||||
2720 | nsIContent** aTargetNode, nsIPrincipal** aPrincipal, | ||||
2721 | nsIContentSecurityPolicy** aCsp, | ||||
2722 | nsICookieJarSettings** aCookieJarSettings) { | ||||
2723 | *aTargetNode = nullptr; | ||||
2724 | *aAllowEmptyDataTransfer = false; | ||||
2725 | nsCOMPtr<nsIContent> dragDataNode; | ||||
2726 | |||||
2727 | nsIContent* editingElement = aSelectionTarget->IsEditable() | ||||
2728 | ? aSelectionTarget->GetEditingHost() | ||||
2729 | : nullptr; | ||||
2730 | |||||
2731 | // In chrome, only allow dragging inside editable areas. | ||||
2732 | bool isChromeContext = !aWindow->GetBrowsingContext()->IsContent(); | ||||
2733 | if (isChromeContext && !editingElement) { | ||||
2734 | if (mGestureDownDragStartData) { | ||||
2735 | // A child process started a drag so use any data it assigned for the dnd | ||||
2736 | // session. | ||||
2737 | mGestureDownDragStartData->AddInitialDnDDataTo(aDataTransfer, aPrincipal, | ||||
2738 | aCsp, aCookieJarSettings); | ||||
2739 | mGestureDownDragStartData.forget(aRemoteDragStartData); | ||||
2740 | *aAllowEmptyDataTransfer = true; | ||||
2741 | } | ||||
2742 | } else { | ||||
2743 | mGestureDownDragStartData = nullptr; | ||||
2744 | |||||
2745 | // GetDragData determines if a selection, link or image in the content | ||||
2746 | // should be dragged, and places the data associated with the drag in the | ||||
2747 | // data transfer. | ||||
2748 | // mGestureDownContent is the node where the mousedown event for the drag | ||||
2749 | // occurred, and aSelectionTarget is the node to use when a selection is | ||||
2750 | // used | ||||
2751 | bool canDrag; | ||||
2752 | bool wasAlt = (mGestureModifiers & MODIFIER_ALT) != 0; | ||||
2753 | nsresult rv = nsContentAreaDragDrop::GetDragData( | ||||
2754 | aWindow, mGestureDownContent, aSelectionTarget, wasAlt, aDataTransfer, | ||||
2755 | &canDrag, aSelection, getter_AddRefs(dragDataNode), aCsp, | ||||
2756 | aCookieJarSettings); | ||||
2757 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0))) || !canDrag) { | ||||
2758 | return; | ||||
2759 | } | ||||
2760 | } | ||||
2761 | |||||
2762 | // if GetDragData returned a node, use that as the node being dragged. | ||||
2763 | // Otherwise, if a selection is being dragged, use the node within the | ||||
2764 | // selection that was dragged. Otherwise, just use the mousedown target. | ||||
2765 | nsIContent* dragContent = mGestureDownContent; | ||||
2766 | if (dragDataNode) | ||||
2767 | dragContent = dragDataNode; | ||||
2768 | else if (*aSelection) | ||||
2769 | dragContent = aSelectionTarget; | ||||
2770 | |||||
2771 | nsIContent* originalDragContent = dragContent; | ||||
2772 | |||||
2773 | // If a selection isn't being dragged, look for an ancestor with the | ||||
2774 | // draggable property set. If one is found, use that as the target of the | ||||
2775 | // drag instead of the node that was clicked on. If a draggable node wasn't | ||||
2776 | // found, just use the clicked node. | ||||
2777 | if (!*aSelection) { | ||||
2778 | while (dragContent) { | ||||
2779 | if (auto htmlElement = nsGenericHTMLElement::FromNode(dragContent)) { | ||||
2780 | if (htmlElement->Draggable()) { | ||||
2781 | // We let draggable elements to trigger dnd even if there is no data | ||||
2782 | // in the DataTransfer. | ||||
2783 | *aAllowEmptyDataTransfer = true; | ||||
2784 | break; | ||||
2785 | } | ||||
2786 | } else { | ||||
2787 | if (dragContent->IsXULElement()) { | ||||
2788 | // All XUL elements are draggable, so if a XUL element is | ||||
2789 | // encountered, stop looking for draggable nodes and just use the | ||||
2790 | // original clicked node instead. | ||||
2791 | // XXXndeakin | ||||
2792 | // In the future, we will want to improve this so that XUL has a | ||||
2793 | // better way to specify whether something is draggable than just | ||||
2794 | // on/off. | ||||
2795 | dragContent = mGestureDownContent; | ||||
2796 | break; | ||||
2797 | } | ||||
2798 | // otherwise, it's not an HTML or XUL element, so just keep looking | ||||
2799 | } | ||||
2800 | dragContent = dragContent->GetFlattenedTreeParent(); | ||||
2801 | } | ||||
2802 | } | ||||
2803 | |||||
2804 | // if no node in the hierarchy was found to drag, but the GetDragData method | ||||
2805 | // returned a node, use that returned node. Otherwise, nothing is draggable. | ||||
2806 | if (!dragContent && dragDataNode) dragContent = dragDataNode; | ||||
2807 | |||||
2808 | if (dragContent) { | ||||
2809 | // if an ancestor node was used instead, clear the drag data | ||||
2810 | // XXXndeakin rework this a bit. Find a way to just not call GetDragData if | ||||
2811 | // we don't need to. | ||||
2812 | if (dragContent != originalDragContent) aDataTransfer->ClearAll(); | ||||
2813 | *aTargetNode = dragContent; | ||||
2814 | NS_ADDREF(*aTargetNode)(*aTargetNode)->AddRef(); | ||||
2815 | } | ||||
2816 | } | ||||
2817 | |||||
2818 | bool EventStateManager::DoDefaultDragStart( | ||||
2819 | nsPresContext* aPresContext, WidgetDragEvent* aDragEvent, | ||||
2820 | DataTransfer* aDataTransfer, bool aAllowEmptyDataTransfer, | ||||
2821 | nsIContent* aDragTarget, Selection* aSelection, | ||||
2822 | RemoteDragStartData* aDragStartData, nsIPrincipal* aPrincipal, | ||||
2823 | nsIContentSecurityPolicy* aCsp, nsICookieJarSettings* aCookieJarSettings) { | ||||
2824 | nsCOMPtr<nsIDragService> dragService = | ||||
2825 | do_GetService("@mozilla.org/widget/dragservice;1"); | ||||
2826 | if (!dragService) return false; | ||||
2827 | |||||
2828 | // Default handling for the dragstart event. | ||||
2829 | // | ||||
2830 | // First, check if a drag session already exists. This means that the drag | ||||
2831 | // service was called directly within a draggesture handler. In this case, | ||||
2832 | // don't do anything more, as it is assumed that the handler is managing | ||||
2833 | // drag and drop manually. Make sure to return true to indicate that a drag | ||||
2834 | // began. However, if we're handling drag session for synthesized events, | ||||
2835 | // we need to initialize some information of the session. Therefore, we | ||||
2836 | // need to keep going for synthesized case. | ||||
2837 | if (MOZ_UNLIKELY(!mPresContext)(__builtin_expect(!!(!mPresContext), 0))) { | ||||
2838 | return true; | ||||
2839 | } | ||||
2840 | nsCOMPtr<nsIDragSession> dragSession = | ||||
2841 | dragService->GetCurrentSession(mPresContext->GetRootWidget()); | ||||
2842 | if (dragSession && !dragSession->IsSynthesizedForTests()) { | ||||
2843 | return true; | ||||
2844 | } | ||||
2845 | |||||
2846 | // No drag session is currently active, so check if a handler added | ||||
2847 | // any items to be dragged. If not, there isn't anything to drag. | ||||
2848 | uint32_t count = 0; | ||||
2849 | if (aDataTransfer) { | ||||
2850 | count = aDataTransfer->MozItemCount(); | ||||
2851 | } | ||||
2852 | if (!aAllowEmptyDataTransfer && !count) { | ||||
2853 | return false; | ||||
2854 | } | ||||
2855 | |||||
2856 | // Get the target being dragged, which may not be the same as the | ||||
2857 | // target of the mouse event. If one wasn't set in the | ||||
2858 | // aDataTransfer during the event handler, just use the original | ||||
2859 | // target instead. | ||||
2860 | nsCOMPtr<nsIContent> dragTarget = aDataTransfer->GetDragTarget(); | ||||
2861 | if (!dragTarget) { | ||||
2862 | dragTarget = aDragTarget; | ||||
2863 | if (!dragTarget) { | ||||
2864 | return false; | ||||
2865 | } | ||||
2866 | } | ||||
2867 | |||||
2868 | // check which drag effect should initially be used. If the effect was not | ||||
2869 | // set, just use all actions, otherwise Windows won't allow a drop. | ||||
2870 | uint32_t action = aDataTransfer->EffectAllowedInt(); | ||||
2871 | if (action == nsIDragService::DRAGDROP_ACTION_UNINITIALIZED) { | ||||
2872 | action = nsIDragService::DRAGDROP_ACTION_COPY | | ||||
2873 | nsIDragService::DRAGDROP_ACTION_MOVE | | ||||
2874 | nsIDragService::DRAGDROP_ACTION_LINK; | ||||
2875 | } | ||||
2876 | |||||
2877 | // get any custom drag image that was set | ||||
2878 | int32_t imageX, imageY; | ||||
2879 | RefPtr<Element> dragImage = aDataTransfer->GetDragImage(&imageX, &imageY); | ||||
2880 | |||||
2881 | nsCOMPtr<nsIArray> transArray = aDataTransfer->GetTransferables(dragTarget); | ||||
2882 | if (!transArray) { | ||||
2883 | return false; | ||||
2884 | } | ||||
2885 | |||||
2886 | RefPtr<DataTransfer> dataTransfer; | ||||
2887 | if (!dragSession) { | ||||
2888 | // After this function returns, the DataTransfer will be cleared so it | ||||
2889 | // appears empty to content. We need to pass a DataTransfer into the Drag | ||||
2890 | // Session, so we need to make a copy. | ||||
2891 | aDataTransfer->Clone(aDragTarget, eDrop, aDataTransfer->MozUserCancelled(), | ||||
2892 | false, getter_AddRefs(dataTransfer)); | ||||
2893 | |||||
2894 | // Copy over the drop effect, as Clone doesn't copy it for us. | ||||
2895 | dataTransfer->SetDropEffectInt(aDataTransfer->DropEffectInt()); | ||||
2896 | } else { | ||||
2897 | MOZ_ASSERT(dragSession->IsSynthesizedForTests())do { static_assert( mozilla::detail::AssertionConditionType< decltype(dragSession->IsSynthesizedForTests())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(dragSession->IsSynthesizedForTests()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("dragSession->IsSynthesizedForTests()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2897); AnnotateMozCrashReason("MOZ_ASSERT" "(" "dragSession->IsSynthesizedForTests()" ")"); do { *((volatile int*)__null) = 2897; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
2898 | MOZ_ASSERT(aDragEvent->mFlags.mIsSynthesizedForTests)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDragEvent->mFlags.mIsSynthesizedForTests)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aDragEvent->mFlags.mIsSynthesizedForTests))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDragEvent->mFlags.mIsSynthesizedForTests" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2898); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDragEvent->mFlags.mIsSynthesizedForTests" ")"); do { *((volatile int*)__null) = 2898; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
2899 | // If we're initializing synthesized drag session, we should use given | ||||
2900 | // DataTransfer as is because it'll be used with following drag events | ||||
2901 | // in any tests, therefore it should be set to nsIDragSession.dataTransfer | ||||
2902 | // because it and DragEvent.dataTransfer should be same instance. | ||||
2903 | dataTransfer = aDataTransfer; | ||||
2904 | } | ||||
2905 | |||||
2906 | // XXXndeakin don't really want to create a new drag DOM event | ||||
2907 | // here, but we need something to pass to the InvokeDragSession | ||||
2908 | // methods. | ||||
2909 | RefPtr<DragEvent> event = | ||||
2910 | NS_NewDOMDragEvent(dragTarget, aPresContext, aDragEvent); | ||||
2911 | |||||
2912 | // Use InvokeDragSessionWithSelection if a selection is being dragged, | ||||
2913 | // such that the image can be generated from the selected text. However, | ||||
2914 | // use InvokeDragSessionWithImage if a custom image was set or something | ||||
2915 | // other than a selection is being dragged. | ||||
2916 | if (!dragImage && aSelection) { | ||||
2917 | dragService->InvokeDragSessionWithSelection( | ||||
2918 | aSelection, aPrincipal, aCsp, aCookieJarSettings, transArray, action, | ||||
2919 | event, dataTransfer, dragTarget); | ||||
2920 | } else if (aDragStartData) { | ||||
2921 | MOZ_ASSERT(XRE_IsParentProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(XRE_IsParentProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(XRE_IsParentProcess()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("XRE_IsParentProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2921); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 2921; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
2922 | dragService->InvokeDragSessionWithRemoteImage( | ||||
2923 | dragTarget, aPrincipal, aCsp, aCookieJarSettings, transArray, action, | ||||
2924 | aDragStartData, event, dataTransfer); | ||||
2925 | } else { | ||||
2926 | dragService->InvokeDragSessionWithImage( | ||||
2927 | dragTarget, aPrincipal, aCsp, aCookieJarSettings, transArray, action, | ||||
2928 | dragImage, imageX, imageY, event, dataTransfer); | ||||
2929 | } | ||||
2930 | |||||
2931 | return true; | ||||
2932 | } | ||||
2933 | |||||
2934 | void EventStateManager::ChangeZoom(bool aIncrease) { | ||||
2935 | // Send the zoom change to the top level browser so it will be handled by the | ||||
2936 | // front end in the same way as other zoom actions. | ||||
2937 | nsIDocShell* docShell = mDocument->GetDocShell(); | ||||
2938 | if (!docShell) { | ||||
2939 | return; | ||||
2940 | } | ||||
2941 | |||||
2942 | BrowsingContext* bc = docShell->GetBrowsingContext(); | ||||
2943 | if (!bc) { | ||||
2944 | return; | ||||
2945 | } | ||||
2946 | |||||
2947 | if (XRE_IsParentProcess()) { | ||||
2948 | bc->Canonical()->DispatchWheelZoomChange(aIncrease); | ||||
2949 | } else if (BrowserChild* child = BrowserChild::GetFrom(docShell)) { | ||||
2950 | child->SendWheelZoomChange(aIncrease); | ||||
2951 | } | ||||
2952 | } | ||||
2953 | |||||
2954 | void EventStateManager::DoScrollHistory(int32_t direction) { | ||||
2955 | nsCOMPtr<nsISupports> pcContainer(mPresContext->GetContainerWeak()); | ||||
2956 | if (pcContainer) { | ||||
2957 | nsCOMPtr<nsIWebNavigation> webNav(do_QueryInterface(pcContainer)); | ||||
2958 | if (webNav) { | ||||
2959 | // positive direction to go back one step, nonpositive to go forward | ||||
2960 | // This is doing user-initiated history traversal, hence we want | ||||
2961 | // to require that history entries we navigate to have user interaction. | ||||
2962 | if (direction > 0) | ||||
2963 | webNav->GoBack(StaticPrefs::browser_navigation_requireUserInteraction(), | ||||
2964 | true); | ||||
2965 | else | ||||
2966 | webNav->GoForward( | ||||
2967 | StaticPrefs::browser_navigation_requireUserInteraction(), true); | ||||
2968 | } | ||||
2969 | } | ||||
2970 | } | ||||
2971 | |||||
2972 | void EventStateManager::DoScrollZoom(nsIFrame* aTargetFrame, | ||||
2973 | int32_t adjustment) { | ||||
2974 | // Exclude content in chrome docshells. | ||||
2975 | nsIContent* content = aTargetFrame->GetContent(); | ||||
2976 | if (content && !nsContentUtils::IsInChromeDocshell(content->OwnerDoc())) { | ||||
2977 | // Positive adjustment to decrease zoom, negative to increase | ||||
2978 | const bool increase = adjustment <= 0; | ||||
2979 | EnsureDocument(mPresContext); | ||||
2980 | ChangeZoom(increase); | ||||
2981 | } | ||||
2982 | } | ||||
2983 | |||||
2984 | static nsIFrame* GetParentFrameToScroll(nsIFrame* aFrame) { | ||||
2985 | if (!aFrame) return nullptr; | ||||
2986 | |||||
2987 | if (aFrame->StyleDisplay()->mPosition == StylePositionProperty::Fixed && | ||||
2988 | nsLayoutUtils::IsReallyFixedPos(aFrame)) { | ||||
2989 | return aFrame->PresShell()->GetRootScrollContainerFrame(); | ||||
2990 | } | ||||
2991 | return aFrame->GetParent(); | ||||
2992 | } | ||||
2993 | |||||
2994 | void EventStateManager::DispatchLegacyMouseScrollEvents( | ||||
2995 | nsIFrame* aTargetFrame, WidgetWheelEvent* aEvent, nsEventStatus* aStatus) { | ||||
2996 | MOZ_ASSERT(aEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2996); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent" ")" ); do { *((volatile int*)__null) = 2996; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
2997 | MOZ_ASSERT(aStatus)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStatus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStatus))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStatus", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 2997); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStatus" ")" ); do { *((volatile int*)__null) = 2997; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
2998 | |||||
2999 | if (!aTargetFrame || *aStatus == nsEventStatus_eConsumeNoDefault) { | ||||
3000 | return; | ||||
3001 | } | ||||
3002 | |||||
3003 | // Ignore mouse wheel transaction for computing legacy mouse wheel | ||||
3004 | // events' delta value. | ||||
3005 | // DOM event's delta vales are computed from CSS pixels. | ||||
3006 | auto scrollAmountInCSSPixels = | ||||
3007 | CSSIntSize::FromAppUnitsRounded(aEvent->mScrollAmount); | ||||
3008 | |||||
3009 | // XXX We don't deal with fractional amount in legacy event, though the | ||||
3010 | // default action handler (DoScrollText()) deals with it. | ||||
3011 | // If we implemented such strict computation, we would need additional | ||||
3012 | // accumulated delta values. It would made the code more complicated. | ||||
3013 | // And also it would computes different delta values from older version. | ||||
3014 | // It doesn't make sense to implement such code for legacy events and | ||||
3015 | // rare cases. | ||||
3016 | int32_t scrollDeltaX, scrollDeltaY, pixelDeltaX, pixelDeltaY; | ||||
3017 | switch (aEvent->mDeltaMode) { | ||||
3018 | case WheelEvent_Binding::DOM_DELTA_PAGE: | ||||
3019 | scrollDeltaX = !aEvent->mLineOrPageDeltaX | ||||
3020 | ? 0 | ||||
3021 | : (aEvent->mLineOrPageDeltaX > 0 | ||||
3022 | ? UIEvent_Binding::SCROLL_PAGE_DOWN | ||||
3023 | : UIEvent_Binding::SCROLL_PAGE_UP); | ||||
3024 | scrollDeltaY = !aEvent->mLineOrPageDeltaY | ||||
3025 | ? 0 | ||||
3026 | : (aEvent->mLineOrPageDeltaY > 0 | ||||
3027 | ? UIEvent_Binding::SCROLL_PAGE_DOWN | ||||
3028 | : UIEvent_Binding::SCROLL_PAGE_UP); | ||||
3029 | pixelDeltaX = RoundDown(aEvent->mDeltaX * scrollAmountInCSSPixels.width); | ||||
3030 | pixelDeltaY = RoundDown(aEvent->mDeltaY * scrollAmountInCSSPixels.height); | ||||
3031 | break; | ||||
3032 | |||||
3033 | case WheelEvent_Binding::DOM_DELTA_LINE: | ||||
3034 | scrollDeltaX = aEvent->mLineOrPageDeltaX; | ||||
3035 | scrollDeltaY = aEvent->mLineOrPageDeltaY; | ||||
3036 | pixelDeltaX = RoundDown(aEvent->mDeltaX * scrollAmountInCSSPixels.width); | ||||
3037 | pixelDeltaY = RoundDown(aEvent->mDeltaY * scrollAmountInCSSPixels.height); | ||||
3038 | break; | ||||
3039 | |||||
3040 | case WheelEvent_Binding::DOM_DELTA_PIXEL: | ||||
3041 | scrollDeltaX = aEvent->mLineOrPageDeltaX; | ||||
3042 | scrollDeltaY = aEvent->mLineOrPageDeltaY; | ||||
3043 | pixelDeltaX = RoundDown(aEvent->mDeltaX); | ||||
3044 | pixelDeltaY = RoundDown(aEvent->mDeltaY); | ||||
3045 | break; | ||||
3046 | |||||
3047 | default: | ||||
3048 | MOZ_CRASH("Invalid deltaMode value comes")do { do { } while (false); MOZ_ReportCrash("" "Invalid deltaMode value comes" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3048); AnnotateMozCrashReason("MOZ_CRASH(" "Invalid deltaMode value comes" ")"); do { *((volatile int*)__null) = 3048; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | ||||
3049 | } | ||||
3050 | |||||
3051 | // Send the legacy events in following order: | ||||
3052 | // 1. Vertical scroll | ||||
3053 | // 2. Vertical pixel scroll (even if #1 isn't consumed) | ||||
3054 | // 3. Horizontal scroll (even if #1 and/or #2 are consumed) | ||||
3055 | // 4. Horizontal pixel scroll (even if #3 isn't consumed) | ||||
3056 | |||||
3057 | AutoWeakFrame targetFrame(aTargetFrame); | ||||
3058 | |||||
3059 | MOZ_ASSERT(*aStatus != nsEventStatus_eConsumeNoDefault &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()" " (" "If you make legacy events dispatched for default prevented wheel " "event, you need to initialize stateX and stateY" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3062); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()" ") (" "If you make legacy events dispatched for default prevented wheel " "event, you need to initialize stateX and stateY" ")"); do { *((volatile int*)__null) = 3062; __attribute__((nomerge)) :: abort(); } while (false); } } while (false) | ||||
3060 | !aEvent->DefaultPrevented(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()" " (" "If you make legacy events dispatched for default prevented wheel " "event, you need to initialize stateX and stateY" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3062); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()" ") (" "If you make legacy events dispatched for default prevented wheel " "event, you need to initialize stateX and stateY" ")"); do { *((volatile int*)__null) = 3062; __attribute__((nomerge)) :: abort(); } while (false); } } while (false) | ||||
3061 | "If you make legacy events dispatched for default prevented wheel "do { static_assert( mozilla::detail::AssertionConditionType< decltype(*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()" " (" "If you make legacy events dispatched for default prevented wheel " "event, you need to initialize stateX and stateY" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3062); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()" ") (" "If you make legacy events dispatched for default prevented wheel " "event, you need to initialize stateX and stateY" ")"); do { *((volatile int*)__null) = 3062; __attribute__((nomerge)) :: abort(); } while (false); } } while (false) | ||||
3062 | "event, you need to initialize stateX and stateY")do { static_assert( mozilla::detail::AssertionConditionType< decltype(*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()" " (" "If you make legacy events dispatched for default prevented wheel " "event, you need to initialize stateX and stateY" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3062); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*aStatus != nsEventStatus_eConsumeNoDefault && !aEvent->DefaultPrevented()" ") (" "If you make legacy events dispatched for default prevented wheel " "event, you need to initialize stateX and stateY" ")"); do { *((volatile int*)__null) = 3062; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); | ||||
3063 | EventState stateX, stateY; | ||||
3064 | if (scrollDeltaY) { | ||||
3065 | SendLineScrollEvent(aTargetFrame, aEvent, stateY, scrollDeltaY, | ||||
3066 | DELTA_DIRECTION_Y); | ||||
3067 | if (!targetFrame.IsAlive()) { | ||||
3068 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
3069 | return; | ||||
3070 | } | ||||
3071 | } | ||||
3072 | |||||
3073 | if (pixelDeltaY) { | ||||
3074 | SendPixelScrollEvent(aTargetFrame, aEvent, stateY, pixelDeltaY, | ||||
3075 | DELTA_DIRECTION_Y); | ||||
3076 | if (!targetFrame.IsAlive()) { | ||||
3077 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
3078 | return; | ||||
3079 | } | ||||
3080 | } | ||||
3081 | |||||
3082 | if (scrollDeltaX) { | ||||
3083 | SendLineScrollEvent(aTargetFrame, aEvent, stateX, scrollDeltaX, | ||||
3084 | DELTA_DIRECTION_X); | ||||
3085 | if (!targetFrame.IsAlive()) { | ||||
3086 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
3087 | return; | ||||
3088 | } | ||||
3089 | } | ||||
3090 | |||||
3091 | if (pixelDeltaX) { | ||||
3092 | SendPixelScrollEvent(aTargetFrame, aEvent, stateX, pixelDeltaX, | ||||
3093 | DELTA_DIRECTION_X); | ||||
3094 | if (!targetFrame.IsAlive()) { | ||||
3095 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
3096 | return; | ||||
3097 | } | ||||
3098 | } | ||||
3099 | |||||
3100 | if (stateY.mDefaultPrevented) { | ||||
3101 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
3102 | aEvent->PreventDefault(!stateY.mDefaultPreventedByContent); | ||||
3103 | } | ||||
3104 | |||||
3105 | if (stateX.mDefaultPrevented) { | ||||
3106 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
3107 | aEvent->PreventDefault(!stateX.mDefaultPreventedByContent); | ||||
3108 | } | ||||
3109 | } | ||||
3110 | |||||
3111 | void EventStateManager::SendLineScrollEvent(nsIFrame* aTargetFrame, | ||||
3112 | WidgetWheelEvent* aEvent, | ||||
3113 | EventState& aState, int32_t aDelta, | ||||
3114 | DeltaDirection aDeltaDirection) { | ||||
3115 | nsCOMPtr<nsIContent> targetContent = aTargetFrame->GetContent(); | ||||
3116 | if (!targetContent) { | ||||
3117 | targetContent = GetFocusedElement(); | ||||
3118 | if (!targetContent) { | ||||
3119 | return; | ||||
3120 | } | ||||
3121 | } | ||||
3122 | |||||
3123 | while (targetContent->IsText()) { | ||||
3124 | targetContent = targetContent->GetFlattenedTreeParent(); | ||||
3125 | } | ||||
3126 | |||||
3127 | WidgetMouseScrollEvent event(aEvent->IsTrusted(), | ||||
3128 | eLegacyMouseLineOrPageScroll, aEvent->mWidget); | ||||
3129 | event.mFlags.mDefaultPrevented = aState.mDefaultPrevented; | ||||
3130 | event.mFlags.mDefaultPreventedByContent = aState.mDefaultPreventedByContent; | ||||
3131 | event.mRefPoint = aEvent->mRefPoint; | ||||
3132 | event.mTimeStamp = aEvent->mTimeStamp; | ||||
3133 | event.mModifiers = aEvent->mModifiers; | ||||
3134 | event.mButtons = aEvent->mButtons; | ||||
3135 | event.mIsHorizontal = (aDeltaDirection == DELTA_DIRECTION_X); | ||||
3136 | event.mDelta = aDelta; | ||||
3137 | event.mInputSource = aEvent->mInputSource; | ||||
3138 | |||||
3139 | RefPtr<nsPresContext> presContext = aTargetFrame->PresContext(); | ||||
3140 | nsEventStatus status = nsEventStatus_eIgnore; | ||||
3141 | EventDispatcher::Dispatch(targetContent, presContext, &event, nullptr, | ||||
3142 | &status); | ||||
3143 | aState.mDefaultPrevented = | ||||
3144 | event.DefaultPrevented() || status == nsEventStatus_eConsumeNoDefault; | ||||
3145 | aState.mDefaultPreventedByContent = event.DefaultPreventedByContent(); | ||||
3146 | } | ||||
3147 | |||||
3148 | void EventStateManager::SendPixelScrollEvent(nsIFrame* aTargetFrame, | ||||
3149 | WidgetWheelEvent* aEvent, | ||||
3150 | EventState& aState, | ||||
3151 | int32_t aPixelDelta, | ||||
3152 | DeltaDirection aDeltaDirection) { | ||||
3153 | nsCOMPtr<nsIContent> targetContent = aTargetFrame->GetContent(); | ||||
3154 | if (!targetContent) { | ||||
3155 | targetContent = GetFocusedElement(); | ||||
3156 | if (!targetContent) { | ||||
3157 | return; | ||||
3158 | } | ||||
3159 | } | ||||
3160 | |||||
3161 | while (targetContent->IsText()) { | ||||
3162 | targetContent = targetContent->GetFlattenedTreeParent(); | ||||
3163 | } | ||||
3164 | |||||
3165 | WidgetMouseScrollEvent event(aEvent->IsTrusted(), eLegacyMousePixelScroll, | ||||
3166 | aEvent->mWidget); | ||||
3167 | event.mFlags.mDefaultPrevented = aState.mDefaultPrevented; | ||||
3168 | event.mFlags.mDefaultPreventedByContent = aState.mDefaultPreventedByContent; | ||||
3169 | event.mRefPoint = aEvent->mRefPoint; | ||||
3170 | event.mTimeStamp = aEvent->mTimeStamp; | ||||
3171 | event.mModifiers = aEvent->mModifiers; | ||||
3172 | event.mButtons = aEvent->mButtons; | ||||
3173 | event.mIsHorizontal = (aDeltaDirection == DELTA_DIRECTION_X); | ||||
3174 | event.mDelta = aPixelDelta; | ||||
3175 | event.mInputSource = aEvent->mInputSource; | ||||
3176 | |||||
3177 | RefPtr<nsPresContext> presContext = aTargetFrame->PresContext(); | ||||
3178 | nsEventStatus status = nsEventStatus_eIgnore; | ||||
3179 | EventDispatcher::Dispatch(targetContent, presContext, &event, nullptr, | ||||
3180 | &status); | ||||
3181 | aState.mDefaultPrevented = | ||||
3182 | event.DefaultPrevented() || status == nsEventStatus_eConsumeNoDefault; | ||||
3183 | aState.mDefaultPreventedByContent = event.DefaultPreventedByContent(); | ||||
3184 | } | ||||
3185 | |||||
3186 | ScrollContainerFrame* | ||||
3187 | EventStateManager::ComputeScrollTargetAndMayAdjustWheelEvent( | ||||
3188 | nsIFrame* aTargetFrame, WidgetWheelEvent* aEvent, | ||||
3189 | ComputeScrollTargetOptions aOptions) { | ||||
3190 | return ComputeScrollTargetAndMayAdjustWheelEvent( | ||||
3191 | aTargetFrame, aEvent->mDeltaX, aEvent->mDeltaY, aEvent, aOptions); | ||||
3192 | } | ||||
3193 | |||||
3194 | // Overload ComputeScrollTargetAndMayAdjustWheelEvent method to allow passing | ||||
3195 | // "test" dx and dy when looking for which scrollbarmediators to activate when | ||||
3196 | // two finger down on trackpad and before any actual motion | ||||
3197 | ScrollContainerFrame* | ||||
3198 | EventStateManager::ComputeScrollTargetAndMayAdjustWheelEvent( | ||||
3199 | nsIFrame* aTargetFrame, double aDirectionX, double aDirectionY, | ||||
3200 | WidgetWheelEvent* aEvent, ComputeScrollTargetOptions aOptions) { | ||||
3201 | bool isAutoDir = false; | ||||
3202 | bool honoursRoot = false; | ||||
3203 | if (MAY_BE_ADJUSTED_BY_AUTO_DIR & aOptions) { | ||||
3204 | // If the scroll is respected as auto-dir, aDirection* should always be | ||||
3205 | // equivalent to the event's delta vlaues(Currently, there are only one case | ||||
3206 | // where aDirection*s have different values from the widget wheel event's | ||||
3207 | // original delta values and the only case isn't auto-dir, see | ||||
3208 | // ScrollbarsForWheel::TemporarilyActivateAllPossibleScrollTargets). | ||||
3209 | MOZ_ASSERT(aDirectionX == aEvent->mDeltaX &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDirectionX == aEvent->mDeltaX && aDirectionY == aEvent->mDeltaY)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDirectionX == aEvent->mDeltaX && aDirectionY == aEvent->mDeltaY))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDirectionX == aEvent->mDeltaX && aDirectionY == aEvent->mDeltaY" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3210); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDirectionX == aEvent->mDeltaX && aDirectionY == aEvent->mDeltaY" ")"); do { *((volatile int*)__null) = 3210; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
3210 | aDirectionY == aEvent->mDeltaY)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDirectionX == aEvent->mDeltaX && aDirectionY == aEvent->mDeltaY)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDirectionX == aEvent->mDeltaX && aDirectionY == aEvent->mDeltaY))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDirectionX == aEvent->mDeltaX && aDirectionY == aEvent->mDeltaY" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3210); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDirectionX == aEvent->mDeltaX && aDirectionY == aEvent->mDeltaY" ")"); do { *((volatile int*)__null) = 3210; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
3211 | |||||
3212 | WheelDeltaAdjustmentStrategy strategy = | ||||
3213 | GetWheelDeltaAdjustmentStrategy(*aEvent); | ||||
3214 | switch (strategy) { | ||||
3215 | case WheelDeltaAdjustmentStrategy::eAutoDir: | ||||
3216 | isAutoDir = true; | ||||
3217 | honoursRoot = false; | ||||
3218 | break; | ||||
3219 | case WheelDeltaAdjustmentStrategy::eAutoDirWithRootHonour: | ||||
3220 | isAutoDir = true; | ||||
3221 | honoursRoot = true; | ||||
3222 | break; | ||||
3223 | default: | ||||
3224 | break; | ||||
3225 | } | ||||
3226 | } | ||||
3227 | |||||
3228 | if (aOptions & PREFER_MOUSE_WHEEL_TRANSACTION) { | ||||
3229 | // If the user recently scrolled with the mousewheel, then they probably | ||||
3230 | // want to scroll the same view as before instead of the view under the | ||||
3231 | // cursor. WheelTransaction tracks the frame currently being | ||||
3232 | // scrolled with the mousewheel. We consider the transaction ended when the | ||||
3233 | // mouse moves more than "mousewheel.transaction.ignoremovedelay" | ||||
3234 | // milliseconds after the last scroll operation, or any time the mouse moves | ||||
3235 | // out of the frame, or when more than "mousewheel.transaction.timeout" | ||||
3236 | // milliseconds have passed after the last operation, even if the mouse | ||||
3237 | // hasn't moved. | ||||
3238 | nsIFrame* lastScrollFrame = WheelTransaction::GetScrollTargetFrame(); | ||||
3239 | if (lastScrollFrame) { | ||||
3240 | ScrollContainerFrame* scrollContainerFrame = | ||||
3241 | lastScrollFrame->GetScrollTargetFrame(); | ||||
3242 | if (scrollContainerFrame) { | ||||
3243 | if (isAutoDir) { | ||||
3244 | ESMAutoDirWheelDeltaAdjuster adjuster(*aEvent, *lastScrollFrame, | ||||
3245 | honoursRoot); | ||||
3246 | // Note that calling this function will not always cause the delta to | ||||
3247 | // be adjusted, it only adjusts the delta when it should, because | ||||
3248 | // Adjust() internally calls ShouldBeAdjusted() before making | ||||
3249 | // adjustment. | ||||
3250 | adjuster.Adjust(); | ||||
3251 | } | ||||
3252 | return scrollContainerFrame; | ||||
3253 | } | ||||
3254 | } | ||||
3255 | } | ||||
3256 | |||||
3257 | // If the event doesn't cause scroll actually, we cannot find scroll target | ||||
3258 | // because we check if the event can cause scroll actually on each found | ||||
3259 | // scrollable frame. | ||||
3260 | if (!aDirectionX && !aDirectionY) { | ||||
3261 | return nullptr; | ||||
3262 | } | ||||
3263 | |||||
3264 | bool checkIfScrollableX; | ||||
3265 | bool checkIfScrollableY; | ||||
3266 | if (isAutoDir) { | ||||
3267 | // Always check the frame's scrollability in both the two directions for an | ||||
3268 | // auto-dir scroll. That is, for an auto-dir scroll, | ||||
3269 | // PREFER_ACTUAL_SCROLLABLE_TARGET_ALONG_X_AXIS and | ||||
3270 | // PREFER_ACTUAL_SCROLLABLE_TARGET_ALONG_Y_AXIS should be ignored. | ||||
3271 | checkIfScrollableX = true; | ||||
3272 | checkIfScrollableY = true; | ||||
3273 | } else { | ||||
3274 | checkIfScrollableX = | ||||
3275 | aDirectionX && | ||||
3276 | (aOptions & PREFER_ACTUAL_SCROLLABLE_TARGET_ALONG_X_AXIS); | ||||
3277 | checkIfScrollableY = | ||||
3278 | aDirectionY && | ||||
3279 | (aOptions & PREFER_ACTUAL_SCROLLABLE_TARGET_ALONG_Y_AXIS); | ||||
3280 | } | ||||
3281 | |||||
3282 | nsIFrame* scrollFrame = !(aOptions & START_FROM_PARENT) | ||||
3283 | ? aTargetFrame | ||||
3284 | : GetParentFrameToScroll(aTargetFrame); | ||||
3285 | for (; scrollFrame; scrollFrame = GetParentFrameToScroll(scrollFrame)) { | ||||
3286 | // Check whether the frame wants to provide us with a scrollable view. | ||||
3287 | ScrollContainerFrame* scrollContainerFrame = | ||||
3288 | scrollFrame->GetScrollTargetFrame(); | ||||
3289 | if (!scrollContainerFrame) { | ||||
3290 | nsMenuPopupFrame* menuPopupFrame = do_QueryFrame(scrollFrame); | ||||
3291 | if (menuPopupFrame) { | ||||
3292 | return nullptr; | ||||
3293 | } | ||||
3294 | continue; | ||||
3295 | } | ||||
3296 | |||||
3297 | if (!checkIfScrollableX && !checkIfScrollableY) { | ||||
3298 | return scrollContainerFrame; | ||||
3299 | } | ||||
3300 | |||||
3301 | // If the frame disregards the direction the user is trying to scroll, then | ||||
3302 | // it should just bubbles the scroll event up to its parental scroll frame | ||||
3303 | |||||
3304 | Maybe<layers::ScrollDirection> disregardedDirection = | ||||
3305 | WheelHandlingUtils::GetDisregardedWheelScrollDirection(scrollFrame); | ||||
3306 | if (disregardedDirection) { | ||||
3307 | switch (disregardedDirection.ref()) { | ||||
3308 | case layers::ScrollDirection::eHorizontal: | ||||
3309 | if (checkIfScrollableX) { | ||||
3310 | continue; | ||||
3311 | } | ||||
3312 | break; | ||||
3313 | case layers::ScrollDirection::eVertical: | ||||
3314 | if (checkIfScrollableY) { | ||||
3315 | continue; | ||||
3316 | } | ||||
3317 | break; | ||||
3318 | } | ||||
3319 | } | ||||
3320 | |||||
3321 | layers::ScrollDirections directions = | ||||
3322 | scrollContainerFrame | ||||
3323 | ->GetAvailableScrollingDirectionsForUserInputEvents(); | ||||
3324 | if ((!(directions.contains(layers::ScrollDirection::eVertical)) && | ||||
3325 | !(directions.contains(layers::ScrollDirection::eHorizontal))) || | ||||
3326 | (checkIfScrollableY && !checkIfScrollableX && | ||||
3327 | !(directions.contains(layers::ScrollDirection::eVertical))) || | ||||
3328 | (checkIfScrollableX && !checkIfScrollableY && | ||||
3329 | !(directions.contains(layers::ScrollDirection::eHorizontal)))) { | ||||
3330 | continue; | ||||
3331 | } | ||||
3332 | |||||
3333 | // Computes whether the currently checked frame is scrollable by this wheel | ||||
3334 | // event. | ||||
3335 | bool canScroll = false; | ||||
3336 | if (isAutoDir) { | ||||
3337 | ESMAutoDirWheelDeltaAdjuster adjuster(*aEvent, *scrollFrame, honoursRoot); | ||||
3338 | if (adjuster.ShouldBeAdjusted()) { | ||||
3339 | adjuster.Adjust(); | ||||
3340 | canScroll = true; | ||||
3341 | } else if (WheelHandlingUtils::CanScrollOn(scrollContainerFrame, | ||||
3342 | aDirectionX, aDirectionY)) { | ||||
3343 | canScroll = true; | ||||
3344 | } | ||||
3345 | } else if (WheelHandlingUtils::CanScrollOn(scrollContainerFrame, | ||||
3346 | aDirectionX, aDirectionY)) { | ||||
3347 | canScroll = true; | ||||
3348 | } | ||||
3349 | |||||
3350 | if (canScroll) { | ||||
3351 | return scrollContainerFrame; | ||||
3352 | } | ||||
3353 | |||||
3354 | // Where we are at is the block ending in a for loop. | ||||
3355 | // The current frame has been checked to be unscrollable by this wheel | ||||
3356 | // event, continue the loop to check its parent, if any. | ||||
3357 | } | ||||
3358 | |||||
3359 | nsIFrame* newFrame = nsLayoutUtils::GetCrossDocParentFrameInProcess( | ||||
3360 | aTargetFrame->PresShell()->GetRootFrame()); | ||||
3361 | aOptions = | ||||
3362 | static_cast<ComputeScrollTargetOptions>(aOptions & ~START_FROM_PARENT); | ||||
3363 | if (!newFrame) { | ||||
3364 | return nullptr; | ||||
3365 | } | ||||
3366 | return ComputeScrollTargetAndMayAdjustWheelEvent(newFrame, aEvent, aOptions); | ||||
3367 | } | ||||
3368 | |||||
3369 | nsSize EventStateManager::GetScrollAmount( | ||||
3370 | nsPresContext* aPresContext, WidgetWheelEvent* aEvent, | ||||
3371 | ScrollContainerFrame* aScrollContainerFrame) { | ||||
3372 | MOZ_ASSERT(aPresContext)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPresContext", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3372); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPresContext" ")"); do { *((volatile int*)__null) = 3372; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
3373 | MOZ_ASSERT(aEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3373); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent" ")" ); do { *((volatile int*)__null) = 3373; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
3374 | |||||
3375 | const bool isPage = aEvent->mDeltaMode == WheelEvent_Binding::DOM_DELTA_PAGE; | ||||
3376 | if (!aScrollContainerFrame) { | ||||
3377 | // If there is no scrollable frame, we should use root, see below. | ||||
3378 | aScrollContainerFrame = | ||||
3379 | aPresContext->PresShell()->GetRootScrollContainerFrame(); | ||||
3380 | } | ||||
3381 | |||||
3382 | if (aScrollContainerFrame) { | ||||
3383 | return isPage ? aScrollContainerFrame->GetPageScrollAmount() | ||||
3384 | : aScrollContainerFrame->GetLineScrollAmount(); | ||||
3385 | } | ||||
3386 | |||||
3387 | // If there is no scrollable frame and page scrolling, use viewport size. | ||||
3388 | if (isPage) { | ||||
3389 | return aPresContext->GetVisibleArea().Size(); | ||||
3390 | } | ||||
3391 | |||||
3392 | // Otherwise use root frame's font metrics. | ||||
3393 | // | ||||
3394 | // FIXME(emilio): Should this use the root element's style frame? The root | ||||
3395 | // frame will always have the initial font. Then again it should never matter | ||||
3396 | // for content, we should always have a root scrollable frame in html | ||||
3397 | // documents. | ||||
3398 | nsIFrame* rootFrame = aPresContext->PresShell()->GetRootFrame(); | ||||
3399 | if (!rootFrame) { | ||||
3400 | return nsSize(0, 0); | ||||
3401 | } | ||||
3402 | RefPtr<nsFontMetrics> fm = | ||||
3403 | nsLayoutUtils::GetInflatedFontMetricsForFrame(rootFrame); | ||||
3404 | NS_ENSURE_TRUE(fm, nsSize(0, 0))do { if ((__builtin_expect(!!(!(fm)), 0))) { NS_DebugBreak(NS_DEBUG_WARNING , "NS_ENSURE_TRUE(" "fm" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3404); return nsSize(0, 0); } } while (false); | ||||
3405 | return nsSize(fm->AveCharWidth(), fm->MaxHeight()); | ||||
3406 | } | ||||
3407 | |||||
3408 | void EventStateManager::DoScrollText( | ||||
3409 | ScrollContainerFrame* aScrollContainerFrame, WidgetWheelEvent* aEvent) { | ||||
3410 | MOZ_ASSERT(aScrollContainerFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aScrollContainerFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aScrollContainerFrame))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("aScrollContainerFrame" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3410); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aScrollContainerFrame" ")"); do { *((volatile int*)__null) = 3410; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
3411 | MOZ_ASSERT(aEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3411); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent" ")" ); do { *((volatile int*)__null) = 3411; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
3412 | |||||
3413 | AutoWeakFrame scrollFrameWeak(aScrollContainerFrame); | ||||
3414 | AutoWeakFrame eventFrameWeak(mCurrentTarget); | ||||
3415 | if (!WheelTransaction::WillHandleDefaultAction(aEvent, scrollFrameWeak, | ||||
3416 | eventFrameWeak)) { | ||||
3417 | return; | ||||
3418 | } | ||||
3419 | |||||
3420 | // Default action's actual scroll amount should be computed from device | ||||
3421 | // pixels. | ||||
3422 | nsPresContext* pc = aScrollContainerFrame->PresContext(); | ||||
3423 | nsSize scrollAmount = GetScrollAmount(pc, aEvent, aScrollContainerFrame); | ||||
3424 | nsIntSize scrollAmountInDevPixels( | ||||
3425 | pc->AppUnitsToDevPixels(scrollAmount.width), | ||||
3426 | pc->AppUnitsToDevPixels(scrollAmount.height)); | ||||
3427 | nsIntPoint actualDevPixelScrollAmount = | ||||
3428 | DeltaAccumulator::GetInstance()->ComputeScrollAmountForDefaultAction( | ||||
3429 | aEvent, scrollAmountInDevPixels); | ||||
3430 | |||||
3431 | // Don't scroll around the axis whose overflow style is hidden. | ||||
3432 | ScrollStyles overflowStyle = aScrollContainerFrame->GetScrollStyles(); | ||||
3433 | if (overflowStyle.mHorizontal == StyleOverflow::Hidden) { | ||||
3434 | actualDevPixelScrollAmount.x = 0; | ||||
3435 | } | ||||
3436 | if (overflowStyle.mVertical == StyleOverflow::Hidden) { | ||||
3437 | actualDevPixelScrollAmount.y = 0; | ||||
3438 | } | ||||
3439 | |||||
3440 | ScrollSnapFlags snapFlags = ScrollSnapFlags::Disabled; | ||||
3441 | mozilla::ScrollOrigin origin = mozilla::ScrollOrigin::NotSpecified; | ||||
3442 | switch (aEvent->mDeltaMode) { | ||||
3443 | case WheelEvent_Binding::DOM_DELTA_LINE: | ||||
3444 | origin = mozilla::ScrollOrigin::MouseWheel; | ||||
3445 | snapFlags = ScrollSnapFlags::IntendedDirection; | ||||
3446 | break; | ||||
3447 | case WheelEvent_Binding::DOM_DELTA_PAGE: | ||||
3448 | origin = mozilla::ScrollOrigin::Pages; | ||||
3449 | snapFlags = ScrollSnapFlags::IntendedDirection | | ||||
3450 | ScrollSnapFlags::IntendedEndPosition; | ||||
3451 | break; | ||||
3452 | case WheelEvent_Binding::DOM_DELTA_PIXEL: | ||||
3453 | origin = mozilla::ScrollOrigin::Pixels; | ||||
3454 | break; | ||||
3455 | default: | ||||
3456 | MOZ_CRASH("Invalid deltaMode value comes")do { do { } while (false); MOZ_ReportCrash("" "Invalid deltaMode value comes" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3456); AnnotateMozCrashReason("MOZ_CRASH(" "Invalid deltaMode value comes" ")"); do { *((volatile int*)__null) = 3456; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | ||||
3457 | } | ||||
3458 | |||||
3459 | // We shouldn't scroll more one page at once except when over one page scroll | ||||
3460 | // is allowed for the event. | ||||
3461 | nsSize pageSize = aScrollContainerFrame->GetPageScrollAmount(); | ||||
3462 | nsIntSize devPixelPageSize(pc->AppUnitsToDevPixels(pageSize.width), | ||||
3463 | pc->AppUnitsToDevPixels(pageSize.height)); | ||||
3464 | if (!WheelPrefs::GetInstance()->IsOverOnePageScrollAllowedX(aEvent) && | ||||
3465 | DeprecatedAbs(actualDevPixelScrollAmount.x.value) > | ||||
3466 | devPixelPageSize.width) { | ||||
3467 | actualDevPixelScrollAmount.x = (actualDevPixelScrollAmount.x >= 0) | ||||
3468 | ? devPixelPageSize.width | ||||
3469 | : -devPixelPageSize.width; | ||||
3470 | } | ||||
3471 | |||||
3472 | if (!WheelPrefs::GetInstance()->IsOverOnePageScrollAllowedY(aEvent) && | ||||
3473 | DeprecatedAbs(actualDevPixelScrollAmount.y.value) > | ||||
3474 | devPixelPageSize.height) { | ||||
3475 | actualDevPixelScrollAmount.y = (actualDevPixelScrollAmount.y >= 0) | ||||
3476 | ? devPixelPageSize.height | ||||
3477 | : -devPixelPageSize.height; | ||||
3478 | } | ||||
3479 | |||||
3480 | bool isDeltaModePixel = | ||||
3481 | (aEvent->mDeltaMode == WheelEvent_Binding::DOM_DELTA_PIXEL); | ||||
3482 | |||||
3483 | ScrollMode mode; | ||||
3484 | switch (aEvent->mScrollType) { | ||||
3485 | case WidgetWheelEvent::SCROLL_DEFAULT: | ||||
3486 | if (isDeltaModePixel) { | ||||
3487 | mode = ScrollMode::Normal; | ||||
3488 | } else if (aEvent->mFlags.mHandledByAPZ) { | ||||
3489 | mode = ScrollMode::SmoothMsd; | ||||
3490 | } else { | ||||
3491 | mode = ScrollMode::Smooth; | ||||
3492 | } | ||||
3493 | break; | ||||
3494 | case WidgetWheelEvent::SCROLL_SYNCHRONOUSLY: | ||||
3495 | mode = ScrollMode::Instant; | ||||
3496 | break; | ||||
3497 | case WidgetWheelEvent::SCROLL_ASYNCHRONOUSLY: | ||||
3498 | mode = ScrollMode::Normal; | ||||
3499 | break; | ||||
3500 | case WidgetWheelEvent::SCROLL_SMOOTHLY: | ||||
3501 | mode = ScrollMode::Smooth; | ||||
3502 | break; | ||||
3503 | default: | ||||
3504 | MOZ_CRASH("Invalid mScrollType value comes")do { do { } while (false); MOZ_ReportCrash("" "Invalid mScrollType value comes" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3504); AnnotateMozCrashReason("MOZ_CRASH(" "Invalid mScrollType value comes" ")"); do { *((volatile int*)__null) = 3504; __attribute__((nomerge )) ::abort(); } while (false); } while (false); | ||||
3505 | } | ||||
3506 | |||||
3507 | ScrollContainerFrame::ScrollMomentum momentum = | ||||
3508 | aEvent->mIsMomentum ? ScrollContainerFrame::SYNTHESIZED_MOMENTUM_EVENT | ||||
3509 | : ScrollContainerFrame::NOT_MOMENTUM; | ||||
3510 | |||||
3511 | nsIntPoint overflow; | ||||
3512 | aScrollContainerFrame->ScrollBy(actualDevPixelScrollAmount, | ||||
3513 | ScrollUnit::DEVICE_PIXELS, mode, &overflow, | ||||
3514 | origin, momentum, snapFlags); | ||||
3515 | |||||
3516 | if (!scrollFrameWeak.IsAlive()) { | ||||
3517 | // If the scroll causes changing the layout, we can think that the event | ||||
3518 | // has been completely consumed by the content. Then, users probably don't | ||||
3519 | // want additional action. | ||||
3520 | aEvent->mOverflowDeltaX = aEvent->mOverflowDeltaY = 0; | ||||
3521 | } else if (isDeltaModePixel) { | ||||
3522 | aEvent->mOverflowDeltaX = overflow.x; | ||||
3523 | aEvent->mOverflowDeltaY = overflow.y; | ||||
3524 | } else { | ||||
3525 | aEvent->mOverflowDeltaX = | ||||
3526 | static_cast<double>(overflow.x) / scrollAmountInDevPixels.width; | ||||
3527 | aEvent->mOverflowDeltaY = | ||||
3528 | static_cast<double>(overflow.y) / scrollAmountInDevPixels.height; | ||||
3529 | } | ||||
3530 | |||||
3531 | // If CSS overflow properties caused not to scroll, the overflowDelta* values | ||||
3532 | // should be same as delta* values since they may be used as gesture event by | ||||
3533 | // widget. However, if there is another scrollable element in the ancestor | ||||
3534 | // along the axis, probably users don't want the operation to cause | ||||
3535 | // additional action such as moving history. In such case, overflowDelta | ||||
3536 | // values should stay zero. | ||||
3537 | if (scrollFrameWeak.IsAlive()) { | ||||
3538 | if (aEvent->mDeltaX && overflowStyle.mHorizontal == StyleOverflow::Hidden && | ||||
3539 | !ComputeScrollTargetAndMayAdjustWheelEvent( | ||||
3540 | aScrollContainerFrame, aEvent, | ||||
3541 | COMPUTE_SCROLLABLE_ANCESTOR_ALONG_X_AXIS_WITH_AUTO_DIR)) { | ||||
3542 | aEvent->mOverflowDeltaX = aEvent->mDeltaX; | ||||
3543 | } | ||||
3544 | if (aEvent->mDeltaY && overflowStyle.mVertical == StyleOverflow::Hidden && | ||||
3545 | !ComputeScrollTargetAndMayAdjustWheelEvent( | ||||
3546 | aScrollContainerFrame, aEvent, | ||||
3547 | COMPUTE_SCROLLABLE_ANCESTOR_ALONG_Y_AXIS_WITH_AUTO_DIR)) { | ||||
3548 | aEvent->mOverflowDeltaY = aEvent->mDeltaY; | ||||
3549 | } | ||||
3550 | } | ||||
3551 | |||||
3552 | NS_ASSERTION(do { if (!(aEvent->mOverflowDeltaX == 0 || (aEvent->mOverflowDeltaX > 0) == (aEvent->mDeltaX > 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "The sign of mOverflowDeltaX is different from the scroll direction" , "aEvent->mOverflowDeltaX == 0 || (aEvent->mOverflowDeltaX > 0) == (aEvent->mDeltaX > 0)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3555); MOZ_PretendNoReturn(); } } while (0) | ||||
3553 | aEvent->mOverflowDeltaX == 0 ||do { if (!(aEvent->mOverflowDeltaX == 0 || (aEvent->mOverflowDeltaX > 0) == (aEvent->mDeltaX > 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "The sign of mOverflowDeltaX is different from the scroll direction" , "aEvent->mOverflowDeltaX == 0 || (aEvent->mOverflowDeltaX > 0) == (aEvent->mDeltaX > 0)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3555); MOZ_PretendNoReturn(); } } while (0) | ||||
3554 | (aEvent->mOverflowDeltaX > 0) == (aEvent->mDeltaX > 0),do { if (!(aEvent->mOverflowDeltaX == 0 || (aEvent->mOverflowDeltaX > 0) == (aEvent->mDeltaX > 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "The sign of mOverflowDeltaX is different from the scroll direction" , "aEvent->mOverflowDeltaX == 0 || (aEvent->mOverflowDeltaX > 0) == (aEvent->mDeltaX > 0)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3555); MOZ_PretendNoReturn(); } } while (0) | ||||
3555 | "The sign of mOverflowDeltaX is different from the scroll direction")do { if (!(aEvent->mOverflowDeltaX == 0 || (aEvent->mOverflowDeltaX > 0) == (aEvent->mDeltaX > 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "The sign of mOverflowDeltaX is different from the scroll direction" , "aEvent->mOverflowDeltaX == 0 || (aEvent->mOverflowDeltaX > 0) == (aEvent->mDeltaX > 0)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3555); MOZ_PretendNoReturn(); } } while (0); | ||||
3556 | NS_ASSERTION(do { if (!(aEvent->mOverflowDeltaY == 0 || (aEvent->mOverflowDeltaY > 0) == (aEvent->mDeltaY > 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "The sign of mOverflowDeltaY is different from the scroll direction" , "aEvent->mOverflowDeltaY == 0 || (aEvent->mOverflowDeltaY > 0) == (aEvent->mDeltaY > 0)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3559); MOZ_PretendNoReturn(); } } while (0) | ||||
3557 | aEvent->mOverflowDeltaY == 0 ||do { if (!(aEvent->mOverflowDeltaY == 0 || (aEvent->mOverflowDeltaY > 0) == (aEvent->mDeltaY > 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "The sign of mOverflowDeltaY is different from the scroll direction" , "aEvent->mOverflowDeltaY == 0 || (aEvent->mOverflowDeltaY > 0) == (aEvent->mDeltaY > 0)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3559); MOZ_PretendNoReturn(); } } while (0) | ||||
3558 | (aEvent->mOverflowDeltaY > 0) == (aEvent->mDeltaY > 0),do { if (!(aEvent->mOverflowDeltaY == 0 || (aEvent->mOverflowDeltaY > 0) == (aEvent->mDeltaY > 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "The sign of mOverflowDeltaY is different from the scroll direction" , "aEvent->mOverflowDeltaY == 0 || (aEvent->mOverflowDeltaY > 0) == (aEvent->mDeltaY > 0)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3559); MOZ_PretendNoReturn(); } } while (0) | ||||
3559 | "The sign of mOverflowDeltaY is different from the scroll direction")do { if (!(aEvent->mOverflowDeltaY == 0 || (aEvent->mOverflowDeltaY > 0) == (aEvent->mDeltaY > 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "The sign of mOverflowDeltaY is different from the scroll direction" , "aEvent->mOverflowDeltaY == 0 || (aEvent->mOverflowDeltaY > 0) == (aEvent->mDeltaY > 0)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3559); MOZ_PretendNoReturn(); } } while (0); | ||||
3560 | |||||
3561 | WheelPrefs::GetInstance()->CancelApplyingUserPrefsFromOverflowDelta(aEvent); | ||||
3562 | } | ||||
3563 | |||||
3564 | void EventStateManager::DecideGestureEvent(WidgetGestureNotifyEvent* aEvent, | ||||
3565 | nsIFrame* targetFrame) { | ||||
3566 | NS_ASSERTION(aEvent->mMessage == eGestureNotify,do { if (!(aEvent->mMessage == eGestureNotify)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "DecideGestureEvent called with a non-gesture event" , "aEvent->mMessage == eGestureNotify", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3567); MOZ_PretendNoReturn(); } } while (0) | ||||
3567 | "DecideGestureEvent called with a non-gesture event")do { if (!(aEvent->mMessage == eGestureNotify)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "DecideGestureEvent called with a non-gesture event" , "aEvent->mMessage == eGestureNotify", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3567); MOZ_PretendNoReturn(); } } while (0); | ||||
3568 | |||||
3569 | /* Check the ancestor tree to decide if any frame is willing* to receive | ||||
3570 | * a MozPixelScroll event. If that's the case, the current touch gesture | ||||
3571 | * will be used as a pan gesture; otherwise it will be a regular | ||||
3572 | * mousedown/mousemove/click event. | ||||
3573 | * | ||||
3574 | * *willing: determine if it makes sense to pan the element using scroll | ||||
3575 | * events: | ||||
3576 | * - For web content: if there are any visible scrollbars on the touch point | ||||
3577 | * - For XUL: if it's an scrollable element that can currently scroll in some | ||||
3578 | * direction. | ||||
3579 | * | ||||
3580 | * Note: we'll have to one-off various cases to ensure a good usable behavior | ||||
3581 | */ | ||||
3582 | WidgetGestureNotifyEvent::PanDirection panDirection = | ||||
3583 | WidgetGestureNotifyEvent::ePanNone; | ||||
3584 | bool displayPanFeedback = false; | ||||
3585 | for (nsIFrame* current = targetFrame; current; | ||||
3586 | current = nsLayoutUtils::GetCrossDocParentFrame(current)) { | ||||
3587 | // e10s - mark remote content as pannable. This is a work around since | ||||
3588 | // we don't have access to remote frame scroll info here. Apz data may | ||||
3589 | // assist is solving this. | ||||
3590 | if (current && IsTopLevelRemoteTarget(current->GetContent())) { | ||||
3591 | panDirection = WidgetGestureNotifyEvent::ePanBoth; | ||||
3592 | // We don't know when we reach bounds, so just disable feedback for now. | ||||
3593 | displayPanFeedback = false; | ||||
3594 | break; | ||||
3595 | } | ||||
3596 | |||||
3597 | LayoutFrameType currentFrameType = current->Type(); | ||||
3598 | |||||
3599 | // Scrollbars should always be draggable | ||||
3600 | if (currentFrameType == LayoutFrameType::Scrollbar) { | ||||
3601 | panDirection = WidgetGestureNotifyEvent::ePanNone; | ||||
3602 | break; | ||||
3603 | } | ||||
3604 | |||||
3605 | // Special check for trees | ||||
3606 | if (nsTreeBodyFrame* treeFrame = do_QueryFrame(current)) { | ||||
3607 | if (treeFrame->GetHorizontalOverflow()) { | ||||
3608 | panDirection = WidgetGestureNotifyEvent::ePanHorizontal; | ||||
3609 | } | ||||
3610 | if (treeFrame->GetVerticalOverflow()) { | ||||
3611 | panDirection = WidgetGestureNotifyEvent::ePanVertical; | ||||
3612 | } | ||||
3613 | break; | ||||
3614 | } | ||||
3615 | |||||
3616 | if (ScrollContainerFrame* scrollContainerFrame = do_QueryFrame(current)) { | ||||
3617 | layers::ScrollDirections scrollbarVisibility = | ||||
3618 | scrollContainerFrame->GetScrollbarVisibility(); | ||||
3619 | |||||
3620 | // Check if we have visible scrollbars | ||||
3621 | if (scrollbarVisibility.contains(layers::ScrollDirection::eVertical)) { | ||||
3622 | panDirection = WidgetGestureNotifyEvent::ePanVertical; | ||||
3623 | displayPanFeedback = true; | ||||
3624 | break; | ||||
3625 | } | ||||
3626 | |||||
3627 | if (scrollbarVisibility.contains(layers::ScrollDirection::eHorizontal)) { | ||||
3628 | panDirection = WidgetGestureNotifyEvent::ePanHorizontal; | ||||
3629 | displayPanFeedback = true; | ||||
3630 | } | ||||
3631 | } | ||||
3632 | } // ancestor chain | ||||
3633 | aEvent->mDisplayPanFeedback = displayPanFeedback; | ||||
3634 | aEvent->mPanDirection = panDirection; | ||||
3635 | } | ||||
3636 | |||||
3637 | #ifdef XP_MACOSX | ||||
3638 | static nsINode* GetCrossDocParentNode(nsINode* aChild) { | ||||
3639 | MOZ_ASSERT(aChild, "The child is null!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChild)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChild" " (" "The child is null!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3639); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChild" ") (" "The child is null!" ")"); do { *((volatile int*)__null) = 3639 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | ||||
3640 | MOZ_ASSERT(XRE_IsParentProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(XRE_IsParentProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(XRE_IsParentProcess()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("XRE_IsParentProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3640); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 3640; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
3641 | |||||
3642 | nsINode* parent = aChild->GetParentNode(); | ||||
3643 | if (parent && parent->IsContent() && aChild->IsContent()) { | ||||
3644 | parent = aChild->AsContent()->GetFlattenedTreeParent(); | ||||
3645 | } | ||||
3646 | |||||
3647 | if (parent || !aChild->IsDocument()) { | ||||
3648 | return parent; | ||||
3649 | } | ||||
3650 | |||||
3651 | return aChild->AsDocument()->GetEmbedderElement(); | ||||
3652 | } | ||||
3653 | |||||
3654 | static bool NodeAllowsClickThrough(nsINode* aNode) { | ||||
3655 | while (aNode) { | ||||
3656 | if (aNode->IsAnyOfXULElements(nsGkAtoms::browser, nsGkAtoms::tree)) { | ||||
3657 | return false; | ||||
3658 | } | ||||
3659 | if (aNode->IsAnyOfXULElements(nsGkAtoms::scrollbar, nsGkAtoms::resizer)) { | ||||
3660 | return true; | ||||
3661 | } | ||||
3662 | aNode = GetCrossDocParentNode(aNode); | ||||
3663 | } | ||||
3664 | return true; | ||||
3665 | } | ||||
3666 | #endif | ||||
3667 | |||||
3668 | void EventStateManager::PostHandleKeyboardEvent( | ||||
3669 | WidgetKeyboardEvent* aKeyboardEvent, nsIFrame* aTargetFrame, | ||||
3670 | nsEventStatus& aStatus) { | ||||
3671 | if (aStatus == nsEventStatus_eConsumeNoDefault) { | ||||
3672 | return; | ||||
3673 | } | ||||
3674 | |||||
3675 | RefPtr<nsPresContext> presContext = mPresContext; | ||||
3676 | |||||
3677 | if (!aKeyboardEvent->HasBeenPostedToRemoteProcess()) { | ||||
3678 | if (aKeyboardEvent->IsWaitingReplyFromRemoteProcess()) { | ||||
3679 | RefPtr<BrowserParent> remote = | ||||
3680 | aTargetFrame ? BrowserParent::GetFrom(aTargetFrame->GetContent()) | ||||
3681 | : nullptr; | ||||
3682 | if (remote) { | ||||
3683 | // remote is null-checked above in order to let pre-existing event | ||||
3684 | // targeting code's chrome vs. content decision override in case of | ||||
3685 | // disagreement in order not to disrupt non-Fission e10s mode in case | ||||
3686 | // there are still bugs in the Fission-mode code. That is, if remote | ||||
3687 | // is nullptr, the pre-existing event targeting code has deemed this | ||||
3688 | // event to belong to chrome rather than content. | ||||
3689 | BrowserParent* preciseRemote = BrowserParent::GetFocused(); | ||||
3690 | if (preciseRemote) { | ||||
3691 | remote = preciseRemote; | ||||
3692 | } | ||||
3693 | // else there was a race between layout and focus tracking | ||||
3694 | } | ||||
3695 | if (remote && !remote->IsReadyToHandleInputEvents()) { | ||||
3696 | // We need to dispatch the event to the browser element again if we were | ||||
3697 | // waiting for the key reply but the event wasn't sent to the content | ||||
3698 | // process due to the remote browser wasn't ready. | ||||
3699 | WidgetKeyboardEvent keyEvent(*aKeyboardEvent); | ||||
3700 | aKeyboardEvent->MarkAsHandledInRemoteProcess(); | ||||
3701 | RefPtr<Element> ownerElement = remote->GetOwnerElement(); | ||||
3702 | EventDispatcher::Dispatch(ownerElement, presContext, &keyEvent); | ||||
3703 | if (keyEvent.DefaultPrevented()) { | ||||
3704 | aKeyboardEvent->PreventDefault(!keyEvent.DefaultPreventedByContent()); | ||||
3705 | aStatus = nsEventStatus_eConsumeNoDefault; | ||||
3706 | return; | ||||
3707 | } | ||||
3708 | } | ||||
3709 | } | ||||
3710 | // The widget expects a reply for every keyboard event. If the event wasn't | ||||
3711 | // dispatched to a content process (non-e10s or no content process | ||||
3712 | // running), we need to short-circuit here. Otherwise, we need to wait for | ||||
3713 | // the content process to handle the event. | ||||
3714 | if (aKeyboardEvent->mWidget) { | ||||
3715 | aKeyboardEvent->mWidget->PostHandleKeyEvent(aKeyboardEvent); | ||||
3716 | } | ||||
3717 | if (aKeyboardEvent->DefaultPrevented()) { | ||||
3718 | aStatus = nsEventStatus_eConsumeNoDefault; | ||||
3719 | return; | ||||
3720 | } | ||||
3721 | } | ||||
3722 | |||||
3723 | // XXX Currently, our automated tests don't support mKeyNameIndex. | ||||
3724 | // Therefore, we still need to handle this with keyCode. | ||||
3725 | switch (aKeyboardEvent->mKeyCode) { | ||||
3726 | case NS_VK_TAB: | ||||
3727 | case NS_VK_F6: | ||||
3728 | // This is to prevent keyboard scrolling while alt modifier in use. | ||||
3729 | if (!aKeyboardEvent->IsAlt()) { | ||||
3730 | aStatus = nsEventStatus_eConsumeNoDefault; | ||||
3731 | |||||
3732 | // Handling the tab event after it was sent to content is bad, | ||||
3733 | // because to the FocusManager the remote-browser looks like one | ||||
3734 | // element, so we would just move the focus to the next element | ||||
3735 | // in chrome, instead of handling it in content. | ||||
3736 | if (aKeyboardEvent->HasBeenPostedToRemoteProcess()) { | ||||
3737 | break; | ||||
3738 | } | ||||
3739 | |||||
3740 | EnsureDocument(presContext); | ||||
3741 | nsFocusManager* fm = nsFocusManager::GetFocusManager(); | ||||
3742 | if (fm && mDocument) { | ||||
3743 | // Shift focus forward or back depending on shift key | ||||
3744 | bool isDocMove = aKeyboardEvent->IsControl() || | ||||
3745 | aKeyboardEvent->mKeyCode == NS_VK_F6; | ||||
3746 | uint32_t dir = | ||||
3747 | aKeyboardEvent->IsShift() | ||||
3748 | ? (isDocMove ? static_cast<uint32_t>( | ||||
3749 | nsIFocusManager::MOVEFOCUS_BACKWARDDOC) | ||||
3750 | : static_cast<uint32_t>( | ||||
3751 | nsIFocusManager::MOVEFOCUS_BACKWARD)) | ||||
3752 | : (isDocMove ? static_cast<uint32_t>( | ||||
3753 | nsIFocusManager::MOVEFOCUS_FORWARDDOC) | ||||
3754 | : static_cast<uint32_t>( | ||||
3755 | nsIFocusManager::MOVEFOCUS_FORWARD)); | ||||
3756 | RefPtr<Element> result; | ||||
3757 | fm->MoveFocus(mDocument->GetWindow(), nullptr, dir, | ||||
3758 | nsIFocusManager::FLAG_BYKEY, getter_AddRefs(result)); | ||||
3759 | } | ||||
3760 | } | ||||
3761 | return; | ||||
3762 | case 0: | ||||
3763 | // We handle keys with no specific keycode value below. | ||||
3764 | break; | ||||
3765 | default: | ||||
3766 | return; | ||||
3767 | } | ||||
3768 | |||||
3769 | switch (aKeyboardEvent->mKeyNameIndex) { | ||||
3770 | case KEY_NAME_INDEX_ZoomIn: | ||||
3771 | case KEY_NAME_INDEX_ZoomOut: | ||||
3772 | ChangeZoom(aKeyboardEvent->mKeyNameIndex == KEY_NAME_INDEX_ZoomIn); | ||||
3773 | aStatus = nsEventStatus_eConsumeNoDefault; | ||||
3774 | break; | ||||
3775 | default: | ||||
3776 | break; | ||||
3777 | } | ||||
3778 | } | ||||
3779 | |||||
3780 | static bool NeedsActiveContentChange(const WidgetMouseEvent* aMouseEvent) { | ||||
3781 | // If the mouse event is a synthesized mouse event due to a touch, do | ||||
3782 | // not set/clear the activation state. Element activation is handled by APZ. | ||||
3783 | return !aMouseEvent || | ||||
3784 | aMouseEvent->mInputSource != MouseEvent_Binding::MOZ_SOURCE_TOUCH; | ||||
3785 | } | ||||
3786 | |||||
3787 | nsresult EventStateManager::PostHandleEvent(nsPresContext* aPresContext, | ||||
3788 | WidgetEvent* aEvent, | ||||
3789 | nsIFrame* aTargetFrame, | ||||
3790 | nsEventStatus* aStatus, | ||||
3791 | nsIContent* aOverrideClickTarget) { | ||||
3792 | AUTO_PROFILER_LABEL("EventStateManager::PostHandleEvent", DOM)mozilla::AutoProfilerLabel raiiObject3792( "EventStateManager::PostHandleEvent" , nullptr, JS::ProfilingCategoryPair::DOM); | ||||
3793 | NS_ENSURE_ARG(aPresContext)do { if ((__builtin_expect(!!(!(aPresContext)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aPresContext" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3793); return NS_ERROR_INVALID_ARG; } } while (false); | ||||
| |||||
3794 | NS_ENSURE_ARG_POINTER(aStatus)do { if ((__builtin_expect(!!(!(aStatus)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aStatus" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3794); return NS_ERROR_INVALID_POINTER; } } while (false); | ||||
3795 | |||||
3796 | mCurrentTarget = aTargetFrame; | ||||
3797 | mCurrentTargetContent = nullptr; | ||||
3798 | |||||
3799 | HandleCrossProcessEvent(aEvent, aStatus); | ||||
3800 | // NOTE: the above call may have destroyed aTargetFrame, please use | ||||
3801 | // mCurrentTarget henceforth. This is to avoid using it accidentally: | ||||
3802 | aTargetFrame = nullptr; | ||||
3803 | |||||
3804 | // Most of the events we handle below require a frame. | ||||
3805 | // Add special cases here. | ||||
3806 | if (!mCurrentTarget && aEvent->mMessage != eMouseUp && | ||||
3807 | aEvent->mMessage != eMouseDown && aEvent->mMessage != eDragEnter && | ||||
3808 | aEvent->mMessage != eDragOver && aEvent->mMessage != ePointerUp && | ||||
3809 | aEvent->mMessage != ePointerCancel) { | ||||
3810 | return NS_OK; | ||||
3811 | } | ||||
3812 | |||||
3813 | // Keep the prescontext alive, we might need it after event dispatch | ||||
3814 | RefPtr<nsPresContext> presContext = aPresContext; | ||||
3815 | nsresult ret = NS_OK; | ||||
3816 | |||||
3817 | switch (aEvent->mMessage) { | ||||
3818 | case eMouseDown: { | ||||
3819 | WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent(); | ||||
3820 | if (mouseEvent->mButton == MouseButton::ePrimary && | ||||
3821 | !sNormalLMouseEventInProcess) { | ||||
3822 | // We got a mouseup event while a mousedown event was being processed. | ||||
3823 | // Make sure that the capturing content is cleared. | ||||
3824 | PresShell::ReleaseCapturingContent(); | ||||
3825 | break; | ||||
3826 | } | ||||
3827 | |||||
3828 | // For remote content, capture the event in the parent process at the | ||||
3829 | // <xul:browser remote> element. This will ensure that subsequent | ||||
3830 | // mousemove/mouseup events will continue to be dispatched to this element | ||||
3831 | // and therefore forwarded to the child. | ||||
3832 | if (aEvent->HasBeenPostedToRemoteProcess() && | ||||
3833 | !PresShell::GetCapturingContent()) { | ||||
3834 | if (nsIContent* content = | ||||
3835 | mCurrentTarget ? mCurrentTarget->GetContent() : nullptr) { | ||||
3836 | PresShell::SetCapturingContent(content, CaptureFlags::None, aEvent); | ||||
3837 | } else { | ||||
3838 | PresShell::ReleaseCapturingContent(); | ||||
3839 | } | ||||
3840 | } | ||||
3841 | |||||
3842 | // If MouseEvent::PreventClickEvent() was called by chrome script, | ||||
3843 | // we need to forget the clicking content and click count for the | ||||
3844 | // following eMouseUp event. | ||||
3845 | if (mouseEvent->mClickEventPrevented) { | ||||
3846 | switch (mouseEvent->mButton) { | ||||
3847 | case MouseButton::ePrimary: | ||||
3848 | case MouseButton::eSecondary: | ||||
3849 | case MouseButton::eMiddle: { | ||||
3850 | LastMouseDownInfo& mouseDownInfo = | ||||
3851 | GetLastMouseDownInfo(mouseEvent->mButton); | ||||
3852 | mouseDownInfo.mLastMouseDownContent = nullptr; | ||||
3853 | mouseDownInfo.mClickCount = 0; | ||||
3854 | mouseDownInfo.mLastMouseDownInputControlType = Nothing(); | ||||
3855 | break; | ||||
3856 | } | ||||
3857 | |||||
3858 | default: | ||||
3859 | break; | ||||
3860 | } | ||||
3861 | } | ||||
3862 | |||||
3863 | nsCOMPtr<nsIContent> activeContent; | ||||
3864 | // When content calls PreventDefault on pointerdown, we also call | ||||
3865 | // PreventDefault on the subsequent mouse events to suppress default | ||||
3866 | // behaviors. Normally, aStatus should be nsEventStatus_eConsumeNoDefault | ||||
3867 | // when the event is DefaultPrevented but it's reset to | ||||
3868 | // nsEventStatus_eIgnore in EventStateManager::PreHandleEvent. So we also | ||||
3869 | // check if the event is DefaultPrevented. | ||||
3870 | if (nsEventStatus_eConsumeNoDefault != *aStatus && | ||||
3871 | !aEvent->DefaultPrevented()) { | ||||
3872 | nsCOMPtr<nsIContent> newFocus; | ||||
3873 | bool suppressBlur = false; | ||||
3874 | if (mCurrentTarget) { | ||||
3875 | mCurrentTarget->GetContentForEvent(aEvent, getter_AddRefs(newFocus)); | ||||
3876 | activeContent = mCurrentTarget->GetContent(); | ||||
3877 | |||||
3878 | // In some cases, we do not want to even blur the current focused | ||||
3879 | // element. Those cases are: | ||||
3880 | // 1. -moz-user-focus CSS property is set to 'ignore'; | ||||
3881 | // 2. XUL control element has the disabled property set to 'true'. | ||||
3882 | // | ||||
3883 | // We can't use nsIFrame::IsFocusable() because we want to blur when | ||||
3884 | // we click on a visibility: none element. | ||||
3885 | // We can't use nsIContent::IsFocusable() because we want to blur when | ||||
3886 | // we click on a non-focusable element like a <div>. | ||||
3887 | // We have to use |aEvent->mTarget| to not make sure we do not check | ||||
3888 | // an anonymous node of the targeted element. | ||||
3889 | suppressBlur = | ||||
3890 | mCurrentTarget->StyleUI()->UserFocus() == StyleUserFocus::Ignore; | ||||
3891 | |||||
3892 | if (!suppressBlur) { | ||||
3893 | if (Element* element = | ||||
3894 | Element::FromEventTargetOrNull(aEvent->mTarget)) { | ||||
3895 | if (nsCOMPtr<nsIDOMXULControlElement> xulControl = | ||||
3896 | element->AsXULControl()) { | ||||
3897 | bool disabled = false; | ||||
3898 | xulControl->GetDisabled(&disabled); | ||||
3899 | suppressBlur = disabled; | ||||
3900 | } | ||||
3901 | } | ||||
3902 | } | ||||
3903 | } | ||||
3904 | |||||
3905 | // When a root content which isn't editable but has an editable HTML | ||||
3906 | // <body> element is clicked, we should redirect the focus to the | ||||
3907 | // the <body> element. E.g., when an user click bottom of the editor | ||||
3908 | // where is outside of the <body> element, the <body> should be focused | ||||
3909 | // and the user can edit immediately after that. | ||||
3910 | // | ||||
3911 | // NOTE: The newFocus isn't editable that also means it's not in | ||||
3912 | // designMode. In designMode, all contents are not focusable. | ||||
3913 | if (newFocus && !newFocus->IsEditable()) { | ||||
3914 | Document* doc = newFocus->GetComposedDoc(); | ||||
3915 | if (doc && newFocus == doc->GetRootElement()) { | ||||
3916 | nsIContent* bodyContent = | ||||
3917 | nsLayoutUtils::GetEditableRootContentByContentEditable(doc); | ||||
3918 | if (bodyContent && bodyContent->GetPrimaryFrame()) { | ||||
3919 | newFocus = bodyContent; | ||||
3920 | } | ||||
3921 | } | ||||
3922 | } | ||||
3923 | |||||
3924 | // When the mouse is pressed, the default action is to focus the | ||||
3925 | // target. Look for the nearest enclosing focusable frame. | ||||
3926 | // | ||||
3927 | // TODO: Probably this should be moved to Element::PostHandleEvent. | ||||
3928 | for (; newFocus; newFocus = newFocus->GetFlattenedTreeParent()) { | ||||
3929 | if (!newFocus->IsElement()) { | ||||
3930 | continue; | ||||
3931 | } | ||||
3932 | |||||
3933 | nsIFrame* frame = newFocus->GetPrimaryFrame(); | ||||
3934 | if (!frame) { | ||||
3935 | continue; | ||||
3936 | } | ||||
3937 | |||||
3938 | // If the mousedown happened inside a popup, don't try to set focus on | ||||
3939 | // one of its containing elements | ||||
3940 | if (frame->IsMenuPopupFrame()) { | ||||
3941 | newFocus = nullptr; | ||||
3942 | break; | ||||
3943 | } | ||||
3944 | |||||
3945 | auto flags = IsFocusableFlags::WithMouse; | ||||
3946 | if (frame->IsFocusable(flags)) { | ||||
3947 | break; | ||||
3948 | } | ||||
3949 | |||||
3950 | if (ShadowRoot* root = newFocus->GetShadowRoot()) { | ||||
3951 | if (root->DelegatesFocus()) { | ||||
3952 | if (Element* firstFocusable = root->GetFocusDelegate(flags)) { | ||||
3953 | newFocus = firstFocusable; | ||||
3954 | break; | ||||
3955 | } | ||||
3956 | } | ||||
3957 | } | ||||
3958 | } | ||||
3959 | |||||
3960 | MOZ_ASSERT_IF(newFocus, newFocus->IsElement())do { if (newFocus) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(newFocus->IsElement())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(newFocus->IsElement()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("newFocus->IsElement()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 3960); AnnotateMozCrashReason("MOZ_ASSERT" "(" "newFocus->IsElement()" ")"); do { *((volatile int*)__null) = 3960; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); | ||||
3961 | |||||
3962 | if (RefPtr<nsFocusManager> fm = nsFocusManager::GetFocusManager()) { | ||||
3963 | // if something was found to focus, focus it. Otherwise, if the | ||||
3964 | // element that was clicked doesn't have -moz-user-focus: ignore, | ||||
3965 | // clear the existing focus. For -moz-user-focus: ignore, the focus | ||||
3966 | // is just left as is. | ||||
3967 | // Another effect of mouse clicking, handled in Selection, is that | ||||
3968 | // it should update the caret position to where the mouse was | ||||
3969 | // clicked. Because the focus is cleared when clicking on a | ||||
3970 | // non-focusable node, the next press of the tab key will cause | ||||
3971 | // focus to be shifted from the caret position instead of the root. | ||||
3972 | if (newFocus) { | ||||
3973 | // use the mouse flag and the noscroll flag so that the content | ||||
3974 | // doesn't unexpectedly scroll when clicking an element that is | ||||
3975 | // only half visible | ||||
3976 | uint32_t flags = | ||||
3977 | nsIFocusManager::FLAG_BYMOUSE | nsIFocusManager::FLAG_NOSCROLL; | ||||
3978 | // If this was a touch-generated event, pass that information: | ||||
3979 | if (mouseEvent->mInputSource == | ||||
3980 | MouseEvent_Binding::MOZ_SOURCE_TOUCH) { | ||||
3981 | flags |= nsIFocusManager::FLAG_BYTOUCH; | ||||
3982 | } | ||||
3983 | fm->SetFocus(MOZ_KnownLive(newFocus->AsElement())(newFocus->AsElement()), flags); | ||||
3984 | } else if (!suppressBlur) { | ||||
3985 | // clear the focus within the frame and then set it as the | ||||
3986 | // focused frame | ||||
3987 | EnsureDocument(mPresContext); | ||||
3988 | if (mDocument) { | ||||
3989 | nsCOMPtr<nsPIDOMWindowOuter> outerWindow = mDocument->GetWindow(); | ||||
3990 | #ifdef XP_MACOSX | ||||
3991 | if (!activeContent || !activeContent->IsXULElement()) | ||||
3992 | #endif | ||||
3993 | fm->ClearFocus(outerWindow); | ||||
3994 | // Prevent switch frame if we're already not in the foreground tab | ||||
3995 | // and we're in a content process. | ||||
3996 | // TODO: If we were inactive frame in this tab, and now in | ||||
3997 | // background tab, we shouldn't make the tab foreground, but | ||||
3998 | // we should set focus to clicked document in the background | ||||
3999 | // tab. However, nsFocusManager does not have proper method | ||||
4000 | // for doing this. Therefore, we should skip setting focus | ||||
4001 | // to clicked document for now. | ||||
4002 | if (XRE_IsParentProcess() || IsInActiveTab(mDocument)) { | ||||
4003 | fm->SetFocusedWindow(outerWindow); | ||||
4004 | } | ||||
4005 | } | ||||
4006 | } | ||||
4007 | } | ||||
4008 | |||||
4009 | // The rest is left button-specific. | ||||
4010 | if (mouseEvent->mButton != MouseButton::ePrimary) { | ||||
4011 | break; | ||||
4012 | } | ||||
4013 | |||||
4014 | // The nearest enclosing element goes into the :active state. If we're | ||||
4015 | // not an element (so we're text or something) we need to obtain | ||||
4016 | // our parent element and put it into :active instead. | ||||
4017 | if (activeContent && !activeContent->IsElement()) { | ||||
4018 | if (nsIContent* par = activeContent->GetFlattenedTreeParent()) { | ||||
4019 | activeContent = par; | ||||
4020 | } | ||||
4021 | } | ||||
4022 | } else { | ||||
4023 | // if we're here, the event handler returned false, so stop | ||||
4024 | // any of our own processing of a drag. Workaround for bug 43258. | ||||
4025 | StopTrackingDragGesture(true); | ||||
4026 | } | ||||
4027 | // XXX Why do we always set this is active? Active window may be changed | ||||
4028 | // by a mousedown event listener. | ||||
4029 | if (NeedsActiveContentChange(mouseEvent)) { | ||||
4030 | SetActiveManager(this, activeContent); | ||||
4031 | } | ||||
4032 | } break; | ||||
4033 | case ePointerCancel: | ||||
4034 | case ePointerUp: { | ||||
4035 | WidgetPointerEvent* pointerEvent = aEvent->AsPointerEvent(); | ||||
4036 | MOZ_ASSERT(pointerEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(pointerEvent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pointerEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pointerEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4036); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pointerEvent" ")"); do { *((volatile int*)__null) = 4036; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4037 | // Implicitly releasing capture for given pointer. ePointerLostCapture | ||||
4038 | // should be send after ePointerUp or ePointerCancel. | ||||
4039 | PointerEventHandler::ImplicitlyReleasePointerCapture(pointerEvent); | ||||
4040 | PointerEventHandler::UpdateActivePointerState(pointerEvent); | ||||
4041 | |||||
4042 | if ( | ||||
4043 | // After pointercancel, pointer becomes invalid so we can remove | ||||
4044 | // relevant helper from table. | ||||
4045 | pointerEvent->mMessage == ePointerCancel || | ||||
4046 | // pointerup for non-hoverable pointer needs to dispatch pointerout | ||||
4047 | // and pointerleave events because the pointer is valid only while the | ||||
4048 | // pointer is "down". | ||||
4049 | !pointerEvent->InputSourceSupportsHover()) { | ||||
4050 | GenerateMouseEnterExit(pointerEvent); | ||||
4051 | mPointersEnterLeaveHelper.Remove(pointerEvent->pointerId); | ||||
4052 | } | ||||
4053 | |||||
4054 | break; | ||||
4055 | } | ||||
4056 | case eMouseUp: { | ||||
4057 | // We can unconditionally stop capturing because | ||||
4058 | // we should never be capturing when the mouse button is up | ||||
4059 | PresShell::ReleaseCapturingContent(); | ||||
4060 | |||||
4061 | WidgetMouseEvent* mouseUpEvent = aEvent->AsMouseEvent(); | ||||
4062 | if (NeedsActiveContentChange(mouseUpEvent)) { | ||||
4063 | ClearGlobalActiveContent(this); | ||||
4064 | } | ||||
4065 | if (mouseUpEvent && EventCausesClickEvents(*mouseUpEvent)) { | ||||
4066 | // Make sure to dispatch the click even if there is no frame for | ||||
4067 | // the current target element. This is required for Web compatibility. | ||||
4068 | RefPtr<EventStateManager> esm = | ||||
4069 | ESMFromContentOrThis(aOverrideClickTarget); | ||||
4070 | ret = | ||||
4071 | esm->PostHandleMouseUp(mouseUpEvent, aStatus, aOverrideClickTarget); | ||||
4072 | } | ||||
4073 | |||||
4074 | if (PresShell* presShell = presContext->GetPresShell()) { | ||||
4075 | RefPtr<nsFrameSelection> frameSelection = presShell->FrameSelection(); | ||||
4076 | frameSelection->SetDragState(false); | ||||
4077 | } | ||||
4078 | } break; | ||||
4079 | case eWheelOperationEnd: { | ||||
4080 | MOZ_ASSERT(aEvent->IsTrusted())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->IsTrusted())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->IsTrusted()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->IsTrusted()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4080); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->IsTrusted()" ")"); do { *((volatile int*)__null) = 4080; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4081 | ScrollbarsForWheel::MayInactivate(); | ||||
4082 | WidgetWheelEvent* wheelEvent = aEvent->AsWheelEvent(); | ||||
4083 | ScrollContainerFrame* scrollTarget = | ||||
4084 | ComputeScrollTargetAndMayAdjustWheelEvent( | ||||
4085 | mCurrentTarget, wheelEvent, | ||||
4086 | COMPUTE_DEFAULT_ACTION_TARGET_WITH_AUTO_DIR); | ||||
4087 | // If the wheel event was handled by APZ, APZ will perform the scroll | ||||
4088 | // snap. | ||||
4089 | if (scrollTarget && !WheelTransaction::HandledByApz()) { | ||||
4090 | scrollTarget->ScrollSnap(); | ||||
4091 | } | ||||
4092 | } break; | ||||
4093 | case eWheel: | ||||
4094 | case eWheelOperationStart: { | ||||
4095 | MOZ_ASSERT(aEvent->IsTrusted())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->IsTrusted())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->IsTrusted()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->IsTrusted()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4095); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->IsTrusted()" ")"); do { *((volatile int*)__null) = 4095; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4096 | |||||
4097 | if (*aStatus == nsEventStatus_eConsumeNoDefault) { | ||||
4098 | ScrollbarsForWheel::Inactivate(); | ||||
4099 | break; | ||||
4100 | } | ||||
4101 | |||||
4102 | WidgetWheelEvent* wheelEvent = aEvent->AsWheelEvent(); | ||||
4103 | MOZ_ASSERT(wheelEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(wheelEvent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(wheelEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("wheelEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4103); AnnotateMozCrashReason("MOZ_ASSERT" "(" "wheelEvent" ")"); do { *((volatile int*)__null) = 4103; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4104 | |||||
4105 | // When APZ is enabled, the actual scroll animation might be handled by | ||||
4106 | // the compositor. | ||||
4107 | WheelPrefs::Action action = | ||||
4108 | wheelEvent->mFlags.mHandledByAPZ | ||||
4109 | ? WheelPrefs::ACTION_NONE | ||||
4110 | : WheelPrefs::GetInstance()->ComputeActionFor(wheelEvent); | ||||
4111 | |||||
4112 | WheelDeltaAdjustmentStrategy strategy = | ||||
4113 | GetWheelDeltaAdjustmentStrategy(*wheelEvent); | ||||
4114 | // Adjust the delta values of the wheel event if the current default | ||||
4115 | // action is to horizontalize scrolling. I.e., deltaY values are set to | ||||
4116 | // deltaX and deltaY and deltaZ values are set to 0. | ||||
4117 | // If horizontalized, the delta values will be restored and its overflow | ||||
4118 | // deltaX will become 0 when the WheelDeltaHorizontalizer instance is | ||||
4119 | // being destroyed. | ||||
4120 | WheelDeltaHorizontalizer horizontalizer(*wheelEvent); | ||||
4121 | if (WheelDeltaAdjustmentStrategy::eHorizontalize == strategy) { | ||||
4122 | horizontalizer.Horizontalize(); | ||||
4123 | } | ||||
4124 | |||||
4125 | // Since ComputeScrollTargetAndMayAdjustWheelEvent() may adjust the delta | ||||
4126 | // if the event is auto-dir. So we use |ESMAutoDirWheelDeltaRestorer| | ||||
4127 | // here. | ||||
4128 | // An instance of |ESMAutoDirWheelDeltaRestorer| is used to monitor | ||||
4129 | // auto-dir adjustment which may happen during its lifetime. If the delta | ||||
4130 | // values is adjusted during its lifetime, the instance will restore the | ||||
4131 | // adjusted delta when it's being destrcuted. | ||||
4132 | ESMAutoDirWheelDeltaRestorer restorer(*wheelEvent); | ||||
4133 | ScrollContainerFrame* scrollTarget = | ||||
4134 | ComputeScrollTargetAndMayAdjustWheelEvent( | ||||
4135 | mCurrentTarget, wheelEvent, | ||||
4136 | COMPUTE_DEFAULT_ACTION_TARGET_WITH_AUTO_DIR); | ||||
4137 | |||||
4138 | switch (action) { | ||||
4139 | case WheelPrefs::ACTION_SCROLL: | ||||
4140 | case WheelPrefs::ACTION_HORIZONTALIZED_SCROLL: { | ||||
4141 | // For scrolling of default action, we should honor the mouse wheel | ||||
4142 | // transaction. | ||||
4143 | |||||
4144 | ScrollbarsForWheel::PrepareToScrollText(this, mCurrentTarget, | ||||
4145 | wheelEvent); | ||||
4146 | |||||
4147 | if (aEvent->mMessage != eWheel || | ||||
4148 | (!wheelEvent->mDeltaX && !wheelEvent->mDeltaY)) { | ||||
4149 | break; | ||||
4150 | } | ||||
4151 | |||||
4152 | ScrollbarsForWheel::SetActiveScrollTarget(scrollTarget); | ||||
4153 | |||||
4154 | ScrollContainerFrame* rootScrollContainerFrame = | ||||
4155 | !mCurrentTarget | ||||
4156 | ? nullptr | ||||
4157 | : mCurrentTarget->PresShell()->GetRootScrollContainerFrame(); | ||||
4158 | if (!scrollTarget || scrollTarget == rootScrollContainerFrame) { | ||||
4159 | wheelEvent->mViewPortIsOverscrolled = true; | ||||
4160 | } | ||||
4161 | wheelEvent->mOverflowDeltaX = wheelEvent->mDeltaX; | ||||
4162 | wheelEvent->mOverflowDeltaY = wheelEvent->mDeltaY; | ||||
4163 | WheelPrefs::GetInstance()->CancelApplyingUserPrefsFromOverflowDelta( | ||||
4164 | wheelEvent); | ||||
4165 | if (scrollTarget) { | ||||
4166 | DoScrollText(scrollTarget, wheelEvent); | ||||
4167 | } else { | ||||
4168 | WheelTransaction::EndTransaction(); | ||||
4169 | ScrollbarsForWheel::Inactivate(); | ||||
4170 | } | ||||
4171 | break; | ||||
4172 | } | ||||
4173 | case WheelPrefs::ACTION_HISTORY: { | ||||
4174 | // If this event doesn't cause eLegacyMouseLineOrPageScroll event or | ||||
4175 | // the direction is oblique, don't perform history back/forward. | ||||
4176 | int32_t intDelta = wheelEvent->GetPreferredIntDelta(); | ||||
4177 | if (!intDelta) { | ||||
4178 | break; | ||||
4179 | } | ||||
4180 | DoScrollHistory(intDelta); | ||||
4181 | break; | ||||
4182 | } | ||||
4183 | case WheelPrefs::ACTION_ZOOM: { | ||||
4184 | // If this event doesn't cause eLegacyMouseLineOrPageScroll event or | ||||
4185 | // the direction is oblique, don't perform zoom in/out. | ||||
4186 | int32_t intDelta = wheelEvent->GetPreferredIntDelta(); | ||||
4187 | if (!intDelta) { | ||||
4188 | break; | ||||
4189 | } | ||||
4190 | DoScrollZoom(mCurrentTarget, intDelta); | ||||
4191 | break; | ||||
4192 | } | ||||
4193 | case WheelPrefs::ACTION_NONE: | ||||
4194 | default: | ||||
4195 | bool allDeltaOverflown = false; | ||||
4196 | if (StaticPrefs::dom_event_wheel_event_groups_enabled() && | ||||
4197 | (wheelEvent->mDeltaX != 0.0 || wheelEvent->mDeltaY != 0.0)) { | ||||
4198 | if (scrollTarget) { | ||||
4199 | WheelTransaction::WillHandleDefaultAction( | ||||
4200 | wheelEvent, scrollTarget, mCurrentTarget); | ||||
4201 | } else { | ||||
4202 | WheelTransaction::EndTransaction(); | ||||
4203 | } | ||||
4204 | } | ||||
4205 | if (wheelEvent->mFlags.mHandledByAPZ) { | ||||
4206 | if (wheelEvent->mCanTriggerSwipe) { | ||||
4207 | // For events that can trigger swipes, APZ needs to know whether | ||||
4208 | // scrolling is possible in the requested direction. It does this | ||||
4209 | // by looking at the scroll overflow values on mCanTriggerSwipe | ||||
4210 | // events after they have been processed. | ||||
4211 | allDeltaOverflown = !ComputeScrollTarget( | ||||
4212 | mCurrentTarget, wheelEvent, COMPUTE_DEFAULT_ACTION_TARGET); | ||||
4213 | } | ||||
4214 | } else { | ||||
4215 | // The event was processed neither by APZ nor by us, so all of the | ||||
4216 | // delta values must be overflown delta values. | ||||
4217 | allDeltaOverflown = true; | ||||
4218 | } | ||||
4219 | |||||
4220 | if (!allDeltaOverflown) { | ||||
4221 | break; | ||||
4222 | } | ||||
4223 | wheelEvent->mOverflowDeltaX = wheelEvent->mDeltaX; | ||||
4224 | wheelEvent->mOverflowDeltaY = wheelEvent->mDeltaY; | ||||
4225 | WheelPrefs::GetInstance()->CancelApplyingUserPrefsFromOverflowDelta( | ||||
4226 | wheelEvent); | ||||
4227 | wheelEvent->mViewPortIsOverscrolled = true; | ||||
4228 | break; | ||||
4229 | } | ||||
4230 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
4231 | } break; | ||||
4232 | |||||
4233 | case eGestureNotify: { | ||||
4234 | if (nsEventStatus_eConsumeNoDefault != *aStatus) { | ||||
4235 | DecideGestureEvent(aEvent->AsGestureNotifyEvent(), mCurrentTarget); | ||||
4236 | } | ||||
4237 | } break; | ||||
4238 | |||||
4239 | case eDragEnter: | ||||
4240 | case eDragOver: { | ||||
4241 | NS_ASSERTION(aEvent->mClass == eDragEventClass, "Expected a drag event")do { if (!(aEvent->mClass == eDragEventClass)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Expected a drag event", "aEvent->mClass == eDragEventClass" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4241); MOZ_PretendNoReturn(); } } while (0); | ||||
4242 | |||||
4243 | // Check if the drag is occurring inside a scrollable area. If so, scroll | ||||
4244 | // the area when the mouse is near the edges. | ||||
4245 | if (mCurrentTarget && aEvent->mMessage == eDragOver) { | ||||
4246 | nsIFrame* checkFrame = mCurrentTarget; | ||||
4247 | while (checkFrame) { | ||||
4248 | ScrollContainerFrame* scrollFrame = do_QueryFrame(checkFrame); | ||||
4249 | // Break out so only the innermost scrollframe is scrolled. | ||||
4250 | if (scrollFrame && scrollFrame->DragScroll(aEvent)) { | ||||
4251 | break; | ||||
4252 | } | ||||
4253 | checkFrame = checkFrame->GetParent(); | ||||
4254 | } | ||||
4255 | } | ||||
4256 | |||||
4257 | nsCOMPtr<nsIDragSession> dragSession = | ||||
4258 | nsContentUtils::GetDragSession(mPresContext); | ||||
4259 | if (!dragSession) break; | ||||
4260 | |||||
4261 | // Reset the flag. | ||||
4262 | dragSession->SetOnlyChromeDrop(false); | ||||
4263 | if (mPresContext) { | ||||
4264 | EnsureDocument(mPresContext); | ||||
4265 | } | ||||
4266 | bool isChromeDoc = nsContentUtils::IsChromeDoc(mDocument); | ||||
4267 | |||||
4268 | // the initial dataTransfer is the one from the dragstart event that | ||||
4269 | // was set on the dragSession when the drag began. | ||||
4270 | RefPtr<DataTransfer> dataTransfer; | ||||
4271 | RefPtr<DataTransfer> initialDataTransfer = dragSession->GetDataTransfer(); | ||||
4272 | |||||
4273 | WidgetDragEvent* dragEvent = aEvent->AsDragEvent(); | ||||
4274 | |||||
4275 | // collect any changes to moz cursor settings stored in the event's | ||||
4276 | // data transfer. | ||||
4277 | UpdateDragDataTransfer(dragEvent); | ||||
4278 | |||||
4279 | // cancelling a dragenter or dragover event means that a drop should be | ||||
4280 | // allowed, so update the dropEffect and the canDrop state to indicate | ||||
4281 | // that a drag is allowed. If the event isn't cancelled, a drop won't be | ||||
4282 | // allowed. Essentially, to allow a drop somewhere, specify the effects | ||||
4283 | // using the effectAllowed and dropEffect properties in a dragenter or | ||||
4284 | // dragover event and cancel the event. To not allow a drop somewhere, | ||||
4285 | // don't cancel the event or set the effectAllowed or dropEffect to | ||||
4286 | // "none". This way, if the event is just ignored, no drop will be | ||||
4287 | // allowed. | ||||
4288 | uint32_t dropEffect = nsIDragService::DRAGDROP_ACTION_NONE; | ||||
4289 | uint32_t action = nsIDragService::DRAGDROP_ACTION_NONE; | ||||
4290 | if (nsEventStatus_eConsumeNoDefault == *aStatus) { | ||||
4291 | // If the event has initialized its mDataTransfer, use it. | ||||
4292 | // Or the event has not been initialized its mDataTransfer, but | ||||
4293 | // it's set before dispatch because of synthesized, but without | ||||
4294 | // testing session (e.g., emulating drag from another app), use it | ||||
4295 | // coming from outside. | ||||
4296 | // XXX Perhaps, for the latter case, we need new API because we don't | ||||
4297 | // have a chance to initialize allowed effects of the session. | ||||
4298 | if (dragEvent->mDataTransfer) { | ||||
4299 | // get the dataTransfer and the dropEffect that was set on it | ||||
4300 | dataTransfer = dragEvent->mDataTransfer; | ||||
4301 | dropEffect = dataTransfer->DropEffectInt(); | ||||
4302 | } else { | ||||
4303 | // if dragEvent->mDataTransfer is null, it means that no attempt was | ||||
4304 | // made to access the dataTransfer during the event, yet the event | ||||
4305 | // was cancelled. Instead, use the initial data transfer available | ||||
4306 | // from the drag session. The drop effect would not have been | ||||
4307 | // initialized (which is done in DragEvent::GetDataTransfer), | ||||
4308 | // so set it from the drag action. We'll still want to filter it | ||||
4309 | // based on the effectAllowed below. | ||||
4310 | dataTransfer = initialDataTransfer; | ||||
4311 | |||||
4312 | dragSession->GetDragAction(&action); | ||||
4313 | |||||
4314 | // filter the drop effect based on the action. Use UNINITIALIZED as | ||||
4315 | // any effect is allowed. | ||||
4316 | dropEffect = nsContentUtils::FilterDropEffect( | ||||
4317 | action, nsIDragService::DRAGDROP_ACTION_UNINITIALIZED); | ||||
4318 | } | ||||
4319 | |||||
4320 | // At this point, if the dataTransfer is null, it means that the | ||||
4321 | // drag was originally started by directly calling the drag service. | ||||
4322 | // Just assume that all effects are allowed. | ||||
4323 | uint32_t effectAllowed = nsIDragService::DRAGDROP_ACTION_UNINITIALIZED; | ||||
4324 | if (dataTransfer) { | ||||
4325 | effectAllowed = dataTransfer->EffectAllowedInt(); | ||||
4326 | } | ||||
4327 | |||||
4328 | // set the drag action based on the drop effect and effect allowed. | ||||
4329 | // The drop effect field on the drag transfer object specifies the | ||||
4330 | // desired current drop effect. However, it cannot be used if the | ||||
4331 | // effectAllowed state doesn't include that type of action. If the | ||||
4332 | // dropEffect is "none", then the action will be 'none' so a drop will | ||||
4333 | // not be allowed. | ||||
4334 | if (effectAllowed == nsIDragService::DRAGDROP_ACTION_UNINITIALIZED || | ||||
4335 | dropEffect & effectAllowed) | ||||
4336 | action = dropEffect; | ||||
4337 | |||||
4338 | if (action == nsIDragService::DRAGDROP_ACTION_NONE) | ||||
4339 | dropEffect = nsIDragService::DRAGDROP_ACTION_NONE; | ||||
4340 | |||||
4341 | // inform the drag session that a drop is allowed on this node. | ||||
4342 | dragSession->SetDragAction(action); | ||||
4343 | dragSession->SetCanDrop(action != nsIDragService::DRAGDROP_ACTION_NONE); | ||||
4344 | |||||
4345 | // For now, do this only for dragover. | ||||
4346 | // XXXsmaug dragenter needs some more work. | ||||
4347 | if (aEvent->mMessage == eDragOver && !isChromeDoc) { | ||||
4348 | // Someone has called preventDefault(), check whether is was on | ||||
4349 | // content or chrome. | ||||
4350 | dragSession->SetOnlyChromeDrop( | ||||
4351 | !dragEvent->mDefaultPreventedOnContent); | ||||
4352 | } | ||||
4353 | } else if (aEvent->mMessage == eDragOver && !isChromeDoc) { | ||||
4354 | // No one called preventDefault(), so handle drop only in chrome. | ||||
4355 | dragSession->SetOnlyChromeDrop(true); | ||||
4356 | } | ||||
4357 | if (auto* bc = BrowserChild::GetFrom(presContext->GetDocShell())) { | ||||
4358 | bc->SendUpdateDropEffect(action, dropEffect); | ||||
4359 | } | ||||
4360 | if (aEvent->HasBeenPostedToRemoteProcess()) { | ||||
4361 | dragSession->SetCanDrop(true); | ||||
4362 | } else if (initialDataTransfer) { | ||||
4363 | // Now set the drop effect in the initial dataTransfer. This ensures | ||||
4364 | // that we can get the desired drop effect in the drop event. For events | ||||
4365 | // dispatched to content, the content process will take care of setting | ||||
4366 | // this. | ||||
4367 | initialDataTransfer->SetDropEffectInt(dropEffect); | ||||
4368 | } | ||||
4369 | } break; | ||||
4370 | |||||
4371 | case eDrop: { | ||||
4372 | if (aEvent->mFlags.mIsSynthesizedForTests) { | ||||
4373 | nsCOMPtr<nsIDragService> dragService = | ||||
4374 | do_GetService("@mozilla.org/widget/dragservice;1"); | ||||
4375 | nsCOMPtr<nsIDragSession> dragSession = | ||||
4376 | nsContentUtils::GetDragSession(mPresContext); | ||||
4377 | if (dragSession && dragService && | ||||
4378 | !dragService->GetNeverAllowSessionIsSynthesizedForTests()) { | ||||
4379 | MOZ_ASSERT(dragSession->IsSynthesizedForTests())do { static_assert( mozilla::detail::AssertionConditionType< decltype(dragSession->IsSynthesizedForTests())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(dragSession->IsSynthesizedForTests()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("dragSession->IsSynthesizedForTests()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4379); AnnotateMozCrashReason("MOZ_ASSERT" "(" "dragSession->IsSynthesizedForTests()" ")"); do { *((volatile int*)__null) = 4379; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4380 | RefPtr<WindowContext> sourceWC; | ||||
4381 | DebugOnly<nsresult> rvIgnored = | ||||
4382 | dragSession->GetSourceWindowContext(getter_AddRefs(sourceWC)); | ||||
4383 | NS_WARNING_ASSERTION(do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rvIgnored )), 1))))) { NS_DebugBreak(NS_DEBUG_WARNING, "nsIDragSession::GetSourceDocument() failed, but ignored" , "NS_SUCCEEDED(rvIgnored)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4385); } } while (false) | ||||
4384 | NS_SUCCEEDED(rvIgnored),do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rvIgnored )), 1))))) { NS_DebugBreak(NS_DEBUG_WARNING, "nsIDragSession::GetSourceDocument() failed, but ignored" , "NS_SUCCEEDED(rvIgnored)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4385); } } while (false) | ||||
4385 | "nsIDragSession::GetSourceDocument() failed, but ignored")do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rvIgnored )), 1))))) { NS_DebugBreak(NS_DEBUG_WARNING, "nsIDragSession::GetSourceDocument() failed, but ignored" , "NS_SUCCEEDED(rvIgnored)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4385); } } while (false); | ||||
4386 | // If the drag source hasn't been initialized, i.e., dragstart was | ||||
4387 | // consumed by the test, the test needs to dispatch "dragend" event | ||||
4388 | // instead of the drag session. Therefore, it does not make sense | ||||
4389 | // to set drag end point in such case (you hit assersion if you do | ||||
4390 | // it). | ||||
4391 | if (sourceWC) { | ||||
4392 | CSSIntPoint dropPointInScreen = | ||||
4393 | Event::GetScreenCoords(aPresContext, aEvent, aEvent->mRefPoint) | ||||
4394 | .extract(); | ||||
4395 | dragSession->SetDragEndPointForTests(dropPointInScreen.x, | ||||
4396 | dropPointInScreen.y); | ||||
4397 | } | ||||
4398 | } | ||||
4399 | } | ||||
4400 | sLastDragOverFrame = nullptr; | ||||
4401 | ClearGlobalActiveContent(this); | ||||
4402 | break; | ||||
4403 | } | ||||
4404 | case eDragExit: { | ||||
4405 | // make sure to fire the enter and exit_synth events after the | ||||
4406 | // eDragExit event, otherwise we'll clean up too early | ||||
4407 | GenerateDragDropEnterExit(presContext, aEvent->AsDragEvent()); | ||||
4408 | if (auto* bc = BrowserChild::GetFrom(presContext->GetDocShell())) { | ||||
4409 | // SendUpdateDropEffect to prevent nsIDragService from waiting for | ||||
4410 | // response of forwarded dragexit event. | ||||
4411 | bc->SendUpdateDropEffect(nsIDragService::DRAGDROP_ACTION_NONE, | ||||
4412 | nsIDragService::DRAGDROP_ACTION_NONE); | ||||
4413 | } | ||||
4414 | break; | ||||
4415 | } | ||||
4416 | case eKeyUp: | ||||
4417 | // If space key is released, we need to inactivate the element which was | ||||
4418 | // activated by preceding space key down. | ||||
4419 | // XXX Currently, we don't store the reason of activation. Therefore, | ||||
4420 | // this may cancel what is activated by a mousedown, but it must not | ||||
4421 | // cause actual problem in web apps in the wild since it must be | ||||
4422 | // rare case that users release space key during a mouse click/drag. | ||||
4423 | if (aEvent->AsKeyboardEvent()->ShouldWorkAsSpaceKey()) { | ||||
4424 | ClearGlobalActiveContent(this); | ||||
4425 | } | ||||
4426 | break; | ||||
4427 | |||||
4428 | case eKeyPress: { | ||||
4429 | WidgetKeyboardEvent* keyEvent = aEvent->AsKeyboardEvent(); | ||||
4430 | PostHandleKeyboardEvent(keyEvent, mCurrentTarget, *aStatus); | ||||
4431 | } break; | ||||
4432 | |||||
4433 | case eMouseEnterIntoWidget: | ||||
4434 | if (mCurrentTarget) { | ||||
4435 | nsCOMPtr<nsIContent> targetContent; | ||||
4436 | mCurrentTarget->GetContentForEvent(aEvent, | ||||
4437 | getter_AddRefs(targetContent)); | ||||
4438 | SetContentState(targetContent, ElementState::HOVER); | ||||
4439 | } | ||||
4440 | break; | ||||
4441 | |||||
4442 | case eMouseExitFromWidget: | ||||
4443 | PointerEventHandler::UpdateActivePointerState(aEvent->AsMouseEvent()); | ||||
4444 | break; | ||||
4445 | |||||
4446 | #ifdef XP_MACOSX | ||||
4447 | case eMouseActivate: | ||||
4448 | if (mCurrentTarget) { | ||||
4449 | nsCOMPtr<nsIContent> targetContent; | ||||
4450 | mCurrentTarget->GetContentForEvent(aEvent, | ||||
4451 | getter_AddRefs(targetContent)); | ||||
4452 | if (!NodeAllowsClickThrough(targetContent)) { | ||||
4453 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
4454 | } | ||||
4455 | } | ||||
4456 | break; | ||||
4457 | #endif | ||||
4458 | |||||
4459 | default: | ||||
4460 | break; | ||||
4461 | } | ||||
4462 | |||||
4463 | // Reset target frame to null to avoid mistargeting after reentrant event | ||||
4464 | mCurrentTarget = nullptr; | ||||
4465 | mCurrentTargetContent = nullptr; | ||||
4466 | |||||
4467 | return ret; | ||||
4468 | } | ||||
4469 | |||||
4470 | BrowserParent* EventStateManager::GetCrossProcessTarget() { | ||||
4471 | return IMEStateManager::GetActiveBrowserParent(); | ||||
4472 | } | ||||
4473 | |||||
4474 | bool EventStateManager::IsTargetCrossProcess(WidgetGUIEvent* aEvent) { | ||||
4475 | // Check to see if there is a focused, editable content in chrome, | ||||
4476 | // in that case, do not forward IME events to content | ||||
4477 | Element* focusedElement = GetFocusedElement(); | ||||
4478 | if (focusedElement && focusedElement->IsEditable()) { | ||||
4479 | return false; | ||||
4480 | } | ||||
4481 | return IMEStateManager::GetActiveBrowserParent() != nullptr; | ||||
4482 | } | ||||
4483 | |||||
4484 | void EventStateManager::NotifyDestroyPresContext(nsPresContext* aPresContext) { | ||||
4485 | RefPtr<nsPresContext> presContext = aPresContext; | ||||
4486 | if (presContext) { | ||||
4487 | IMEStateManager::OnDestroyPresContext(*presContext); | ||||
4488 | } | ||||
4489 | |||||
4490 | // Bug 70855: Presentation is going away, possibly for a reframe. | ||||
4491 | // Reset the hover state so that if we're recreating the presentation, | ||||
4492 | // we won't have the old hover state still set in the new presentation, | ||||
4493 | // as if the new presentation is resized, a new element may be hovered. | ||||
4494 | ResetHoverState(); | ||||
4495 | |||||
4496 | mMouseEnterLeaveHelper = nullptr; | ||||
4497 | mPointersEnterLeaveHelper.Clear(); | ||||
4498 | PointerEventHandler::NotifyDestroyPresContext(presContext); | ||||
4499 | } | ||||
4500 | |||||
4501 | void EventStateManager::ResetHoverState() { | ||||
4502 | if (mHoverContent) { | ||||
4503 | SetContentState(nullptr, ElementState::HOVER); | ||||
4504 | } | ||||
4505 | } | ||||
4506 | |||||
4507 | void EventStateManager::SetPresContext(nsPresContext* aPresContext) { | ||||
4508 | mPresContext = aPresContext; | ||||
4509 | } | ||||
4510 | |||||
4511 | void EventStateManager::ClearFrameRefs(nsIFrame* aFrame) { | ||||
4512 | if (aFrame && aFrame == mCurrentTarget) { | ||||
4513 | mCurrentTargetContent = aFrame->GetContent(); | ||||
4514 | } | ||||
4515 | } | ||||
4516 | |||||
4517 | struct CursorImage { | ||||
4518 | gfx::IntPoint mHotspot; | ||||
4519 | nsCOMPtr<imgIContainer> mContainer; | ||||
4520 | ImageResolution mResolution; | ||||
4521 | bool mEarlierCursorLoading = false; | ||||
4522 | }; | ||||
4523 | |||||
4524 | // Given the event that we're processing, and the computed cursor and hotspot, | ||||
4525 | // determine whether the custom CSS cursor should be blocked (that is, not | ||||
4526 | // honored). | ||||
4527 | // | ||||
4528 | // We will not honor it all of the following are true: | ||||
4529 | // | ||||
4530 | // * the size of the custom cursor is bigger than layout.cursor.block.max-size. | ||||
4531 | // * the bounds of the cursor would end up outside of the viewport of the | ||||
4532 | // top-level content document. | ||||
4533 | // | ||||
4534 | // This is done in order to prevent hijacking the cursor, see bug 1445844 and | ||||
4535 | // co. | ||||
4536 | static bool ShouldBlockCustomCursor(nsPresContext* aPresContext, | ||||
4537 | WidgetEvent* aEvent, | ||||
4538 | const CursorImage& aCursor) { | ||||
4539 | int32_t width = 0; | ||||
4540 | int32_t height = 0; | ||||
4541 | aCursor.mContainer->GetWidth(&width); | ||||
4542 | aCursor.mContainer->GetHeight(&height); | ||||
4543 | aCursor.mResolution.ApplyTo(width, height); | ||||
4544 | |||||
4545 | int32_t maxSize = StaticPrefs::layout_cursor_block_max_size(); | ||||
4546 | |||||
4547 | if (width <= maxSize && height <= maxSize) { | ||||
4548 | return false; | ||||
4549 | } | ||||
4550 | |||||
4551 | auto input = DOMIntersectionObserver::ComputeInput(*aPresContext->Document(), | ||||
4552 | nullptr, nullptr); | ||||
4553 | |||||
4554 | if (!input.mRootFrame) { | ||||
4555 | return false; | ||||
4556 | } | ||||
4557 | |||||
4558 | nsPoint point = nsLayoutUtils::GetEventCoordinatesRelativeTo( | ||||
4559 | aEvent, RelativeTo{input.mRootFrame}); | ||||
4560 | |||||
4561 | // The cursor size won't be affected by our full zoom in the parent process, | ||||
4562 | // so undo that before checking the rect. | ||||
4563 | float zoom = aPresContext->GetFullZoom(); | ||||
4564 | |||||
4565 | // Also adjust for accessibility cursor scaling factor. | ||||
4566 | zoom /= LookAndFeel::GetFloat(LookAndFeel::FloatID::CursorScale, 1.0f); | ||||
4567 | |||||
4568 | nsSize size(CSSPixel::ToAppUnits(width / zoom), | ||||
4569 | CSSPixel::ToAppUnits(height / zoom)); | ||||
4570 | nsPoint hotspot( | ||||
4571 | CSSPixel::ToAppUnits(ViewAs<CSSPixel>(aCursor.mHotspot.x / zoom)), | ||||
4572 | CSSPixel::ToAppUnits(ViewAs<CSSPixel>(aCursor.mHotspot.y / zoom))); | ||||
4573 | |||||
4574 | const nsRect cursorRect(point - hotspot, size); | ||||
4575 | auto output = DOMIntersectionObserver::Intersect(input, cursorRect); | ||||
4576 | return !output.mIntersectionRect || | ||||
4577 | !(*output.mIntersectionRect == cursorRect); | ||||
4578 | } | ||||
4579 | |||||
4580 | static gfx::IntPoint ComputeHotspot(imgIContainer* aContainer, | ||||
4581 | const Maybe<gfx::Point>& aHotspot) { | ||||
4582 | MOZ_ASSERT(aContainer)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContainer)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContainer))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContainer", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4582); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContainer" ")"); do { *((volatile int*)__null) = 4582; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4583 | |||||
4584 | // css3-ui says to use the CSS-specified hotspot if present, | ||||
4585 | // otherwise use the intrinsic hotspot, otherwise use the top left | ||||
4586 | // corner. | ||||
4587 | if (aHotspot) { | ||||
4588 | int32_t imgWidth, imgHeight; | ||||
4589 | aContainer->GetWidth(&imgWidth); | ||||
4590 | aContainer->GetHeight(&imgHeight); | ||||
4591 | auto hotspot = gfx::IntPoint::Round(*aHotspot); | ||||
4592 | return {std::max(std::min(hotspot.x.value, imgWidth - 1), 0), | ||||
4593 | std::max(std::min(hotspot.y.value, imgHeight - 1), 0)}; | ||||
4594 | } | ||||
4595 | |||||
4596 | gfx::IntPoint hotspot; | ||||
4597 | aContainer->GetHotspotX(&hotspot.x.value); | ||||
4598 | aContainer->GetHotspotY(&hotspot.y.value); | ||||
4599 | return hotspot; | ||||
4600 | } | ||||
4601 | |||||
4602 | static CursorImage ComputeCustomCursor(nsPresContext* aPresContext, | ||||
4603 | WidgetEvent* aEvent, | ||||
4604 | const nsIFrame& aFrame, | ||||
4605 | const nsIFrame::Cursor& aCursor) { | ||||
4606 | if (aCursor.mAllowCustomCursor == nsIFrame::AllowCustomCursorImage::No) { | ||||
4607 | return {}; | ||||
4608 | } | ||||
4609 | const ComputedStyle& style = | ||||
4610 | aCursor.mStyle ? *aCursor.mStyle : *aFrame.Style(); | ||||
4611 | |||||
4612 | // If we are falling back because any cursor before us is loading, let the | ||||
4613 | // consumer know. | ||||
4614 | bool loading = false; | ||||
4615 | for (const auto& image : style.StyleUI()->Cursor().images.AsSpan()) { | ||||
4616 | MOZ_ASSERT(image.image.IsImageRequestType(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(image.image.IsImageRequestType())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(image.image.IsImageRequestType ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("image.image.IsImageRequestType()" " (" "Cursor image should only parse url() types" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4617); AnnotateMozCrashReason("MOZ_ASSERT" "(" "image.image.IsImageRequestType()" ") (" "Cursor image should only parse url() types" ")"); do { *((volatile int*)__null) = 4617; __attribute__((nomerge)) :: abort(); } while (false); } } while (false) | ||||
4617 | "Cursor image should only parse url() types")do { static_assert( mozilla::detail::AssertionConditionType< decltype(image.image.IsImageRequestType())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(image.image.IsImageRequestType ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("image.image.IsImageRequestType()" " (" "Cursor image should only parse url() types" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4617); AnnotateMozCrashReason("MOZ_ASSERT" "(" "image.image.IsImageRequestType()" ") (" "Cursor image should only parse url() types" ")"); do { *((volatile int*)__null) = 4617; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); | ||||
4618 | uint32_t status; | ||||
4619 | imgRequestProxy* req = image.image.GetImageRequest(); | ||||
4620 | if (!req || NS_FAILED(req->GetImageStatus(&status))((bool)(__builtin_expect(!!(NS_FAILED_impl(req->GetImageStatus (&status))), 0)))) { | ||||
4621 | continue; | ||||
4622 | } | ||||
4623 | if (!(status & imgIRequest::STATUS_LOAD_COMPLETE)) { | ||||
4624 | loading = true; | ||||
4625 | continue; | ||||
4626 | } | ||||
4627 | if (status & imgIRequest::STATUS_ERROR) { | ||||
4628 | continue; | ||||
4629 | } | ||||
4630 | nsCOMPtr<imgIContainer> container; | ||||
4631 | req->GetImage(getter_AddRefs(container)); | ||||
4632 | if (!container) { | ||||
4633 | continue; | ||||
4634 | } | ||||
4635 | StyleImageOrientation orientation = | ||||
4636 | aFrame.StyleVisibility()->UsedImageOrientation(req); | ||||
4637 | container = nsLayoutUtils::OrientImage(container, orientation); | ||||
4638 | Maybe<gfx::Point> specifiedHotspot = | ||||
4639 | image.has_hotspot ? Some(gfx::Point{image.hotspot_x, image.hotspot_y}) | ||||
4640 | : Nothing(); | ||||
4641 | gfx::IntPoint hotspot = ComputeHotspot(container, specifiedHotspot); | ||||
4642 | CursorImage result{hotspot, std::move(container), | ||||
4643 | image.image.GetResolution(style), loading}; | ||||
4644 | if (ShouldBlockCustomCursor(aPresContext, aEvent, result)) { | ||||
4645 | continue; | ||||
4646 | } | ||||
4647 | // This is the one we want! | ||||
4648 | return result; | ||||
4649 | } | ||||
4650 | return {{}, nullptr, {}, loading}; | ||||
4651 | } | ||||
4652 | |||||
4653 | void EventStateManager::UpdateCursor(nsPresContext* aPresContext, | ||||
4654 | WidgetMouseEvent* aEvent, | ||||
4655 | nsIFrame* aTargetFrame, | ||||
4656 | nsEventStatus* aStatus) { | ||||
4657 | if (aTargetFrame && IsRemoteTarget(aTargetFrame->GetContent())) { | ||||
4658 | return; | ||||
4659 | } | ||||
4660 | |||||
4661 | auto cursor = StyleCursorKind::Default; | ||||
4662 | nsCOMPtr<imgIContainer> container; | ||||
4663 | ImageResolution resolution; | ||||
4664 | Maybe<gfx::IntPoint> hotspot; | ||||
4665 | |||||
4666 | if (mHidingCursorWhileTyping && aEvent->IsReal()) { | ||||
4667 | // Any non-synthetic mouse event makes us show the cursor again. | ||||
4668 | mHidingCursorWhileTyping = false; | ||||
4669 | } | ||||
4670 | |||||
4671 | if (mHidingCursorWhileTyping) { | ||||
4672 | cursor = StyleCursorKind::None; | ||||
4673 | } else if (mLockCursor != kInvalidCursorKind) { | ||||
4674 | // If cursor is locked just use the locked one | ||||
4675 | cursor = mLockCursor; | ||||
4676 | } else if (aTargetFrame) { | ||||
4677 | // If not locked, look for correct cursor | ||||
4678 | nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo( | ||||
4679 | aEvent, RelativeTo{aTargetFrame}); | ||||
4680 | const nsIFrame::Cursor framecursor = aTargetFrame->GetCursor(pt); | ||||
4681 | const CursorImage customCursor = | ||||
4682 | ComputeCustomCursor(aPresContext, aEvent, *aTargetFrame, framecursor); | ||||
4683 | |||||
4684 | // If the current cursor is from the same frame, and it is now | ||||
4685 | // loading some new image for the cursor, we should wait for a | ||||
4686 | // while rather than taking its fallback cursor directly. | ||||
4687 | if (customCursor.mEarlierCursorLoading && | ||||
4688 | gLastCursorSourceFrame == aTargetFrame && | ||||
4689 | TimeStamp::NowLoRes() - gLastCursorUpdateTime < | ||||
4690 | TimeDuration::FromMilliseconds(kCursorLoadingTimeout)) { | ||||
4691 | return; | ||||
4692 | } | ||||
4693 | cursor = framecursor.mCursor; | ||||
4694 | container = std::move(customCursor.mContainer); | ||||
4695 | resolution = customCursor.mResolution; | ||||
4696 | hotspot = Some(customCursor.mHotspot); | ||||
4697 | } | ||||
4698 | |||||
4699 | if (aTargetFrame) { | ||||
4700 | if (cursor == StyleCursorKind::Pointer && IsSelectingLink(aTargetFrame)) { | ||||
4701 | cursor = aTargetFrame->GetWritingMode().IsVertical() | ||||
4702 | ? StyleCursorKind::VerticalText | ||||
4703 | : StyleCursorKind::Text; | ||||
4704 | } | ||||
4705 | SetCursor(cursor, container, resolution, hotspot, | ||||
4706 | aTargetFrame->GetNearestWidget(), false); | ||||
4707 | gLastCursorSourceFrame = aTargetFrame; | ||||
4708 | gLastCursorUpdateTime = TimeStamp::NowLoRes(); | ||||
4709 | } | ||||
4710 | |||||
4711 | if (mLockCursor != kInvalidCursorKind || StyleCursorKind::Auto != cursor) { | ||||
4712 | *aStatus = nsEventStatus_eConsumeDoDefault; | ||||
4713 | } | ||||
4714 | } | ||||
4715 | |||||
4716 | void EventStateManager::ClearCachedWidgetCursor(nsIFrame* aTargetFrame) { | ||||
4717 | if (!aTargetFrame) { | ||||
4718 | return; | ||||
4719 | } | ||||
4720 | nsIWidget* aWidget = aTargetFrame->GetNearestWidget(); | ||||
4721 | if (!aWidget) { | ||||
4722 | return; | ||||
4723 | } | ||||
4724 | aWidget->ClearCachedCursor(); | ||||
4725 | } | ||||
4726 | |||||
4727 | void EventStateManager::StartHidingCursorWhileTyping(nsIWidget* aWidget) { | ||||
4728 | if (mHidingCursorWhileTyping || sCursorSettingManager != this) { | ||||
4729 | return; | ||||
4730 | } | ||||
4731 | mHidingCursorWhileTyping = true; | ||||
4732 | SetCursor(StyleCursorKind::None, nullptr, {}, {}, aWidget, false); | ||||
4733 | } | ||||
4734 | |||||
4735 | nsresult EventStateManager::SetCursor(StyleCursorKind aCursor, | ||||
4736 | imgIContainer* aContainer, | ||||
4737 | const ImageResolution& aResolution, | ||||
4738 | const Maybe<gfx::IntPoint>& aHotspot, | ||||
4739 | nsIWidget* aWidget, bool aLockCursor) { | ||||
4740 | EnsureDocument(mPresContext); | ||||
4741 | NS_ENSURE_TRUE(mDocument, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(mDocument)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mDocument" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4741); return NS_ERROR_FAILURE; } } while (false); | ||||
4742 | sCursorSettingManager = this; | ||||
4743 | |||||
4744 | NS_ENSURE_TRUE(aWidget, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(aWidget)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aWidget" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4744); return NS_ERROR_FAILURE; } } while (false); | ||||
4745 | if (aLockCursor) { | ||||
4746 | if (StyleCursorKind::Auto != aCursor) { | ||||
4747 | mLockCursor = aCursor; | ||||
4748 | } else { | ||||
4749 | // If cursor style is set to auto we unlock the cursor again. | ||||
4750 | mLockCursor = kInvalidCursorKind; | ||||
4751 | } | ||||
4752 | } | ||||
4753 | nsCursor c; | ||||
4754 | switch (aCursor) { | ||||
4755 | case StyleCursorKind::Auto: | ||||
4756 | case StyleCursorKind::Default: | ||||
4757 | c = eCursor_standard; | ||||
4758 | break; | ||||
4759 | case StyleCursorKind::Pointer: | ||||
4760 | c = eCursor_hyperlink; | ||||
4761 | break; | ||||
4762 | case StyleCursorKind::Crosshair: | ||||
4763 | c = eCursor_crosshair; | ||||
4764 | break; | ||||
4765 | case StyleCursorKind::Move: | ||||
4766 | c = eCursor_move; | ||||
4767 | break; | ||||
4768 | case StyleCursorKind::Text: | ||||
4769 | c = eCursor_select; | ||||
4770 | break; | ||||
4771 | case StyleCursorKind::Wait: | ||||
4772 | c = eCursor_wait; | ||||
4773 | break; | ||||
4774 | case StyleCursorKind::Help: | ||||
4775 | c = eCursor_help; | ||||
4776 | break; | ||||
4777 | case StyleCursorKind::NResize: | ||||
4778 | c = eCursor_n_resize; | ||||
4779 | break; | ||||
4780 | case StyleCursorKind::SResize: | ||||
4781 | c = eCursor_s_resize; | ||||
4782 | break; | ||||
4783 | case StyleCursorKind::WResize: | ||||
4784 | c = eCursor_w_resize; | ||||
4785 | break; | ||||
4786 | case StyleCursorKind::EResize: | ||||
4787 | c = eCursor_e_resize; | ||||
4788 | break; | ||||
4789 | case StyleCursorKind::NwResize: | ||||
4790 | c = eCursor_nw_resize; | ||||
4791 | break; | ||||
4792 | case StyleCursorKind::SeResize: | ||||
4793 | c = eCursor_se_resize; | ||||
4794 | break; | ||||
4795 | case StyleCursorKind::NeResize: | ||||
4796 | c = eCursor_ne_resize; | ||||
4797 | break; | ||||
4798 | case StyleCursorKind::SwResize: | ||||
4799 | c = eCursor_sw_resize; | ||||
4800 | break; | ||||
4801 | case StyleCursorKind::Copy: // CSS3 | ||||
4802 | c = eCursor_copy; | ||||
4803 | break; | ||||
4804 | case StyleCursorKind::Alias: | ||||
4805 | c = eCursor_alias; | ||||
4806 | break; | ||||
4807 | case StyleCursorKind::ContextMenu: | ||||
4808 | c = eCursor_context_menu; | ||||
4809 | break; | ||||
4810 | case StyleCursorKind::Cell: | ||||
4811 | c = eCursor_cell; | ||||
4812 | break; | ||||
4813 | case StyleCursorKind::Grab: | ||||
4814 | c = eCursor_grab; | ||||
4815 | break; | ||||
4816 | case StyleCursorKind::Grabbing: | ||||
4817 | c = eCursor_grabbing; | ||||
4818 | break; | ||||
4819 | case StyleCursorKind::Progress: | ||||
4820 | c = eCursor_spinning; | ||||
4821 | break; | ||||
4822 | case StyleCursorKind::ZoomIn: | ||||
4823 | c = eCursor_zoom_in; | ||||
4824 | break; | ||||
4825 | case StyleCursorKind::ZoomOut: | ||||
4826 | c = eCursor_zoom_out; | ||||
4827 | break; | ||||
4828 | case StyleCursorKind::NotAllowed: | ||||
4829 | c = eCursor_not_allowed; | ||||
4830 | break; | ||||
4831 | case StyleCursorKind::ColResize: | ||||
4832 | c = eCursor_col_resize; | ||||
4833 | break; | ||||
4834 | case StyleCursorKind::RowResize: | ||||
4835 | c = eCursor_row_resize; | ||||
4836 | break; | ||||
4837 | case StyleCursorKind::NoDrop: | ||||
4838 | c = eCursor_no_drop; | ||||
4839 | break; | ||||
4840 | case StyleCursorKind::VerticalText: | ||||
4841 | c = eCursor_vertical_text; | ||||
4842 | break; | ||||
4843 | case StyleCursorKind::AllScroll: | ||||
4844 | c = eCursor_all_scroll; | ||||
4845 | break; | ||||
4846 | case StyleCursorKind::NeswResize: | ||||
4847 | c = eCursor_nesw_resize; | ||||
4848 | break; | ||||
4849 | case StyleCursorKind::NwseResize: | ||||
4850 | c = eCursor_nwse_resize; | ||||
4851 | break; | ||||
4852 | case StyleCursorKind::NsResize: | ||||
4853 | c = eCursor_ns_resize; | ||||
4854 | break; | ||||
4855 | case StyleCursorKind::EwResize: | ||||
4856 | c = eCursor_ew_resize; | ||||
4857 | break; | ||||
4858 | case StyleCursorKind::None: | ||||
4859 | c = eCursor_none; | ||||
4860 | break; | ||||
4861 | default: | ||||
4862 | MOZ_ASSERT_UNREACHABLE("Unknown cursor kind")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "Unknown cursor kind" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4862); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Unknown cursor kind" ")"); do { * ((volatile int*)__null) = 4862; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); | ||||
4863 | c = eCursor_standard; | ||||
4864 | break; | ||||
4865 | } | ||||
4866 | |||||
4867 | uint32_t x = aHotspot ? aHotspot->x.value : 0; | ||||
4868 | uint32_t y = aHotspot ? aHotspot->y.value : 0; | ||||
4869 | aWidget->SetCursor(nsIWidget::Cursor{c, aContainer, x, y, aResolution}); | ||||
4870 | return NS_OK; | ||||
4871 | } | ||||
4872 | |||||
4873 | bool EventStateManager::CursorSettingManagerHasLockedCursor() { | ||||
4874 | return sCursorSettingManager && | ||||
4875 | sCursorSettingManager->mLockCursor != kInvalidCursorKind; | ||||
4876 | } | ||||
4877 | |||||
4878 | class MOZ_STACK_CLASS ESMEventCB : public EventDispatchingCallback { | ||||
4879 | public: | ||||
4880 | explicit ESMEventCB(nsIContent* aTarget) : mTarget(aTarget) {} | ||||
4881 | |||||
4882 | MOZ_CAN_RUN_SCRIPT | ||||
4883 | void HandleEvent(EventChainPostVisitor& aVisitor) override { | ||||
4884 | if (aVisitor.mPresContext) { | ||||
4885 | nsIFrame* frame = aVisitor.mPresContext->GetPrimaryFrameFor(mTarget); | ||||
4886 | if (frame) { | ||||
4887 | frame->HandleEvent(aVisitor.mPresContext, aVisitor.mEvent->AsGUIEvent(), | ||||
4888 | &aVisitor.mEventStatus); | ||||
4889 | } | ||||
4890 | } | ||||
4891 | } | ||||
4892 | |||||
4893 | nsCOMPtr<nsIContent> mTarget; | ||||
4894 | }; | ||||
4895 | |||||
4896 | static UniquePtr<WidgetMouseEvent> CreateMouseOrPointerWidgetEvent( | ||||
4897 | WidgetMouseEvent* aMouseEvent, EventMessage aMessage, | ||||
4898 | EventTarget* aRelatedTarget) { | ||||
4899 | // This method does not support creating a mouse/pointer button change event | ||||
4900 | // because of no data about the changing state. | ||||
4901 | MOZ_ASSERT(aMessage != eMouseDown)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage != eMouseDown)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage != eMouseDown))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aMessage != eMouseDown" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4901); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage != eMouseDown" ")"); do { *((volatile int*)__null) = 4901; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4902 | MOZ_ASSERT(aMessage != eMouseUp)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage != eMouseUp)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage != eMouseUp))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("aMessage != eMouseUp" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4902); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage != eMouseUp" ")"); do { *((volatile int*)__null) = 4902; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4903 | MOZ_ASSERT(aMessage != ePointerDown)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage != ePointerDown)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage != ePointerDown))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMessage != ePointerDown" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4903); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage != ePointerDown" ")"); do { *((volatile int*)__null) = 4903; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4904 | MOZ_ASSERT(aMessage != ePointerUp)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage != ePointerUp)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage != ePointerUp))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aMessage != ePointerUp" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4904); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage != ePointerUp" ")"); do { *((volatile int*)__null) = 4904; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4905 | // This method is currently designed to create the following events. | ||||
4906 | MOZ_ASSERT(aMessage == eMouseOver || aMessage == eMouseEnter ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4911); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" ")"); do { *((volatile int*)__null) = 4911; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
4907 | aMessage == eMouseOut || aMessage == eMouseLeave ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4911); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" ")"); do { *((volatile int*)__null) = 4911; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
4908 | aMessage == ePointerOver || aMessage == ePointerEnter ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4911); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" ")"); do { *((volatile int*)__null) = 4911; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
4909 | aMessage == ePointerOut || aMessage == ePointerLeave ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4911); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" ")"); do { *((volatile int*)__null) = 4911; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
4910 | aMessage == eMouseEnterIntoWidget ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4911); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" ")"); do { *((volatile int*)__null) = 4911; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
4911 | aMessage == eMouseExitFromWidget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 4911); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eMouseOver || aMessage == eMouseEnter || aMessage == eMouseOut || aMessage == eMouseLeave || aMessage == ePointerOver || aMessage == ePointerEnter || aMessage == ePointerOut || aMessage == ePointerLeave || aMessage == eMouseEnterIntoWidget || aMessage == eMouseExitFromWidget" ")"); do { *((volatile int*)__null) = 4911; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
4912 | |||||
4913 | WidgetPointerEvent* sourcePointer = aMouseEvent->AsPointerEvent(); | ||||
4914 | UniquePtr<WidgetMouseEvent> newEvent; | ||||
4915 | if (sourcePointer) { | ||||
4916 | AUTO_PROFILER_LABEL("CreateMouseOrPointerWidgetEvent", OTHER)mozilla::AutoProfilerLabel raiiObject4916( "CreateMouseOrPointerWidgetEvent" , nullptr, JS::ProfilingCategoryPair::OTHER); | ||||
4917 | |||||
4918 | WidgetPointerEvent* newPointerEvent = new WidgetPointerEvent( | ||||
4919 | aMouseEvent->IsTrusted(), aMessage, aMouseEvent->mWidget); | ||||
4920 | newPointerEvent->mIsPrimary = sourcePointer->mIsPrimary; | ||||
4921 | newPointerEvent->mWidth = sourcePointer->mWidth; | ||||
4922 | newPointerEvent->mHeight = sourcePointer->mHeight; | ||||
4923 | newPointerEvent->mInputSource = sourcePointer->mInputSource; | ||||
4924 | |||||
4925 | newEvent = WrapUnique(newPointerEvent); | ||||
4926 | } else { | ||||
4927 | newEvent = MakeUnique<WidgetMouseEvent>(aMouseEvent->IsTrusted(), aMessage, | ||||
4928 | aMouseEvent->mWidget, | ||||
4929 | WidgetMouseEvent::eReal); | ||||
4930 | } | ||||
4931 | |||||
4932 | // Inherit whether the event is synthesized by the test API or not. | ||||
4933 | // Then, when the event is synthesized by a test API and handled in a remote | ||||
4934 | // process, it won't be ignored. See PresShell::HandleEvent(). | ||||
4935 | newEvent->mFlags.mIsSynthesizedForTests = | ||||
4936 | aMouseEvent->mFlags.mIsSynthesizedForTests; | ||||
4937 | |||||
4938 | newEvent->mRelatedTarget = aRelatedTarget; | ||||
4939 | newEvent->mRefPoint = aMouseEvent->mRefPoint; | ||||
4940 | newEvent->mModifiers = aMouseEvent->mModifiers; | ||||
4941 | if (!aMouseEvent->mFlags.mDispatchedAtLeastOnce && | ||||
4942 | aMouseEvent->InputSourceSupportsHover()) { | ||||
4943 | // If we synthesize a pointer event or a mouse event from another event | ||||
4944 | // which changes a button state whose input soucre supports hover state and | ||||
4945 | // the source event has not been dispatched yet, we should set to the button | ||||
4946 | // state of the synthesizing event to previous one. | ||||
4947 | // Note that we don't need to do this if the input source does not support | ||||
4948 | // hover state because a WPT check the behavior (see below) and the other | ||||
4949 | // browsers pass the test even though this is inconsistent behavior. | ||||
4950 | newEvent->mButton = | ||||
4951 | sourcePointer ? MouseButton::eNotPressed : MouseButton::ePrimary; | ||||
4952 | if (aMouseEvent->IsPressingButton()) { | ||||
4953 | // If the source event has not been dispatched into the DOM yet, we | ||||
4954 | // need to remove the flag which is being pressed. | ||||
4955 | newEvent->mButtons = static_cast<decltype(WidgetMouseEvent::mButtons)>( | ||||
4956 | aMouseEvent->mButtons & | ||||
4957 | ~MouseButtonsFlagToChange( | ||||
4958 | static_cast<MouseButton>(aMouseEvent->mButton))); | ||||
4959 | } else if (aMouseEvent->IsReleasingButton()) { | ||||
4960 | // If the source event has not been dispatched into the DOM yet, we | ||||
4961 | // need to add the flag which is being released. | ||||
4962 | newEvent->mButtons = static_cast<decltype(WidgetMouseEvent::mButtons)>( | ||||
4963 | aMouseEvent->mButtons | | ||||
4964 | MouseButtonsFlagToChange( | ||||
4965 | static_cast<MouseButton>(aMouseEvent->mButton))); | ||||
4966 | } else { | ||||
4967 | // The source event does not change the buttons state so that we can | ||||
4968 | // set mButtons value as-is. | ||||
4969 | newEvent->mButtons = aMouseEvent->mButtons; | ||||
4970 | } | ||||
4971 | // Adjust pressure if it does not matches with mButtons. | ||||
4972 | // FIXME: We may use wrong pressure value if the source event has not been | ||||
4973 | // dispatched into the DOM yet. However, fixing this requires to store the | ||||
4974 | // last pressure value somewhere. | ||||
4975 | if (newEvent->mButtons && aMouseEvent->mPressure == 0) { | ||||
4976 | newEvent->mPressure = 0.5f; | ||||
4977 | } else if (!newEvent->mButtons && aMouseEvent->mPressure != 0) { | ||||
4978 | newEvent->mPressure = 0; | ||||
4979 | } else { | ||||
4980 | newEvent->mPressure = aMouseEvent->mPressure; | ||||
4981 | } | ||||
4982 | } else { | ||||
4983 | // If the event has already been dispatched into the tree, web apps has | ||||
4984 | // already handled the button state change, so the button state of the | ||||
4985 | // source event has already synced. | ||||
4986 | // If the input source does not have hover state, we don't need to modify | ||||
4987 | // the state because the other browsers behave so and tested by | ||||
4988 | // pointerevent_attributes_nohover_pointers.html even though this is | ||||
4989 | // different expectation from | ||||
4990 | // pointerevent_attributes_hoverable_pointers.html, but the other browsers | ||||
4991 | // pass both of them. | ||||
4992 | newEvent->mButton = aMouseEvent->mButton; | ||||
4993 | newEvent->mButtons = aMouseEvent->mButtons; | ||||
4994 | newEvent->mPressure = aMouseEvent->mPressure; | ||||
4995 | } | ||||
4996 | |||||
4997 | newEvent->mInputSource = aMouseEvent->mInputSource; | ||||
4998 | newEvent->pointerId = aMouseEvent->pointerId; | ||||
4999 | |||||
5000 | return newEvent; | ||||
5001 | } | ||||
5002 | |||||
5003 | already_AddRefed<nsIWidget> | ||||
5004 | EventStateManager::DispatchMouseOrPointerBoundaryEvent( | ||||
5005 | WidgetMouseEvent* aMouseEvent, EventMessage aMessage, | ||||
5006 | nsIContent* aTargetContent, nsIContent* aRelatedContent) { | ||||
5007 | MOZ_ASSERT(aMessage == eMouseEnter || aMessage == ePointerEnter ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5010); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut" ")"); do { *((volatile int*)__null) = 5010; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
5008 | aMessage == eMouseLeave || aMessage == ePointerLeave ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5010); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut" ")"); do { *((volatile int*)__null) = 5010; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
5009 | aMessage == eMouseOver || aMessage == ePointerOver ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5010); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut" ")"); do { *((volatile int*)__null) = 5010; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
5010 | aMessage == eMouseOut || aMessage == ePointerOut)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5010); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eMouseEnter || aMessage == ePointerEnter || aMessage == eMouseLeave || aMessage == ePointerLeave || aMessage == eMouseOver || aMessage == ePointerOver || aMessage == eMouseOut || aMessage == ePointerOut" ")"); do { *((volatile int*)__null) = 5010; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
5011 | |||||
5012 | // https://w3c.github.io/pointerlock/#dom-element-requestpointerlock | ||||
5013 | // "[Once in the locked state...E]vents that require the concept | ||||
5014 | // of a mouse cursor must not be dispatched (for example: mouseover, | ||||
5015 | // mouseout...). | ||||
5016 | // XXXedgar should we also block pointer events? | ||||
5017 | if (PointerLockManager::IsLocked() && | ||||
5018 | (aMessage
| ||||
5019 | aMessage
| ||||
5020 | mCurrentTargetContent = nullptr; | ||||
5021 | nsCOMPtr<Element> pointerLockedElement = | ||||
5022 | PointerLockManager::GetLockedElement(); | ||||
5023 | if (!pointerLockedElement) { | ||||
5024 | NS_WARNING("Should have pointer locked element, but didn't.")NS_DebugBreak(NS_DEBUG_WARNING, "Should have pointer locked element, but didn't." , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5024); | ||||
5025 | return nullptr; | ||||
5026 | } | ||||
5027 | nsIFrame* const pointerLockedFrame = | ||||
5028 | mPresContext->GetPrimaryFrameFor(pointerLockedElement); | ||||
5029 | if (NS_WARN_IF(!pointerLockedFrame)NS_warn_if_impl(!pointerLockedFrame, "!pointerLockedFrame", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5029)) { | ||||
5030 | return nullptr; | ||||
5031 | } | ||||
5032 | return do_AddRef(pointerLockedFrame->GetNearestWidget()); | ||||
| |||||
5033 | } | ||||
5034 | |||||
5035 | mCurrentTargetContent = nullptr; | ||||
5036 | |||||
5037 | if (!aTargetContent) { | ||||
5038 | return nullptr; | ||||
5039 | } | ||||
5040 | |||||
5041 | // Store the widget before dispatching the event because some event listeners | ||||
5042 | // of the dispatching event may cause reframe the target or remove the target | ||||
5043 | // from the tree. | ||||
5044 | nsCOMPtr<nsIWidget> targetWidget; | ||||
5045 | if (nsIFrame* const targetFrame = | ||||
5046 | mPresContext->GetPrimaryFrameFor(aTargetContent)) { | ||||
5047 | targetWidget = targetFrame->GetNearestWidget(); | ||||
5048 | } | ||||
5049 | |||||
5050 | nsCOMPtr<nsIContent> targetContent = aTargetContent; | ||||
5051 | nsCOMPtr<nsIContent> relatedContent = aRelatedContent; | ||||
5052 | |||||
5053 | UniquePtr<WidgetMouseEvent> dispatchEvent = | ||||
5054 | CreateMouseOrPointerWidgetEvent(aMouseEvent, aMessage, relatedContent); | ||||
5055 | |||||
5056 | AutoWeakFrame previousTarget = mCurrentTarget; | ||||
5057 | mCurrentTargetContent = targetContent; | ||||
5058 | |||||
5059 | nsEventStatus status = nsEventStatus_eIgnore; | ||||
5060 | ESMEventCB callback(targetContent); | ||||
5061 | RefPtr<nsPresContext> presContext = mPresContext; | ||||
5062 | EventDispatcher::Dispatch(targetContent, presContext, dispatchEvent.get(), | ||||
5063 | nullptr, &status, &callback); | ||||
5064 | |||||
5065 | if (mPresContext) { | ||||
5066 | // If we are entering/leaving remote content, dispatch a mouse enter/exit | ||||
5067 | // event to the remote frame. | ||||
5068 | if (IsTopLevelRemoteTarget(targetContent)) { | ||||
5069 | if (aMessage == eMouseOut) { | ||||
5070 | // For remote content, send a puppet widget mouse exit event. | ||||
5071 | UniquePtr<WidgetMouseEvent> remoteEvent = | ||||
5072 | CreateMouseOrPointerWidgetEvent(aMouseEvent, eMouseExitFromWidget, | ||||
5073 | relatedContent); | ||||
5074 | remoteEvent->mExitFrom = Some(WidgetMouseEvent::ePuppet); | ||||
5075 | |||||
5076 | // mCurrentTarget is set to the new target, so we must reset it to the | ||||
5077 | // old target and then dispatch a cross-process event. (mCurrentTarget | ||||
5078 | // will be set back below.) HandleCrossProcessEvent will query for the | ||||
5079 | // proper target via GetEventTarget which will return mCurrentTarget. | ||||
5080 | mCurrentTarget = mPresContext->GetPrimaryFrameFor(targetContent); | ||||
5081 | HandleCrossProcessEvent(remoteEvent.get(), &status); | ||||
5082 | } else if (aMessage == eMouseOver) { | ||||
5083 | UniquePtr<WidgetMouseEvent> remoteEvent = | ||||
5084 | CreateMouseOrPointerWidgetEvent(aMouseEvent, eMouseEnterIntoWidget, | ||||
5085 | relatedContent); | ||||
5086 | HandleCrossProcessEvent(remoteEvent.get(), &status); | ||||
5087 | } | ||||
5088 | } | ||||
5089 | } | ||||
5090 | |||||
5091 | mCurrentTargetContent = nullptr; | ||||
5092 | mCurrentTarget = previousTarget; | ||||
5093 | |||||
5094 | return targetWidget.forget(); | ||||
5095 | } | ||||
5096 | |||||
5097 | static nsIContent* FindCommonAncestor(nsIContent* aNode1, nsIContent* aNode2) { | ||||
5098 | if (!aNode1 || !aNode2) { | ||||
5099 | return nullptr; | ||||
5100 | } | ||||
5101 | return nsContentUtils::GetCommonFlattenedTreeAncestor(aNode1, aNode2); | ||||
5102 | } | ||||
5103 | |||||
5104 | class EnterLeaveDispatcher { | ||||
5105 | public: | ||||
5106 | EnterLeaveDispatcher(EventStateManager* aESM, nsIContent* aTarget, | ||||
5107 | nsIContent* aRelatedTarget, | ||||
5108 | WidgetMouseEvent* aMouseEvent, | ||||
5109 | EventMessage aEventMessage) | ||||
5110 | : mESM(aESM), mMouseEvent(aMouseEvent), mEventMessage(aEventMessage) { | ||||
5111 | nsPIDOMWindowInner* win = | ||||
5112 | aTarget ? aTarget->OwnerDoc()->GetInnerWindow() : nullptr; | ||||
5113 | if (aMouseEvent->AsPointerEvent() | ||||
5114 | ? win && win->HasPointerEnterLeaveEventListeners() | ||||
5115 | : win && win->HasMouseEnterLeaveEventListeners()) { | ||||
5116 | mRelatedTarget = | ||||
5117 | aRelatedTarget ? aRelatedTarget->FindFirstNonChromeOnlyAccessContent() | ||||
5118 | : nullptr; | ||||
5119 | nsINode* commonParent = FindCommonAncestor(aTarget, aRelatedTarget); | ||||
5120 | nsIContent* current = aTarget; | ||||
5121 | // Note, it is ok if commonParent is null! | ||||
5122 | while (current && current != commonParent) { | ||||
5123 | if (!current->ChromeOnlyAccess()) { | ||||
5124 | mTargets.AppendObject(current); | ||||
5125 | } | ||||
5126 | // mouseenter/leave is fired only on elements. | ||||
5127 | current = current->GetFlattenedTreeParent(); | ||||
5128 | } | ||||
5129 | } | ||||
5130 | } | ||||
5131 | |||||
5132 | // TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1415230) | ||||
5133 | MOZ_CAN_RUN_SCRIPT_BOUNDARY void Dispatch() { | ||||
5134 | if (mEventMessage == eMouseEnter || mEventMessage == ePointerEnter) { | ||||
5135 | for (int32_t i = mTargets.Count() - 1; i >= 0; --i) { | ||||
5136 | nsCOMPtr<nsIWidget> widget = mESM->DispatchMouseOrPointerBoundaryEvent( | ||||
5137 | mMouseEvent, mEventMessage, MOZ_KnownLive(mTargets[i])(mTargets[i]), | ||||
5138 | mRelatedTarget); | ||||
5139 | } | ||||
5140 | } else { | ||||
5141 | for (int32_t i = 0; i < mTargets.Count(); ++i) { | ||||
5142 | nsCOMPtr<nsIWidget> widget = mESM->DispatchMouseOrPointerBoundaryEvent( | ||||
5143 | mMouseEvent, mEventMessage, MOZ_KnownLive(mTargets[i])(mTargets[i]), | ||||
5144 | mRelatedTarget); | ||||
5145 | } | ||||
5146 | } | ||||
5147 | } | ||||
5148 | |||||
5149 | // Nothing overwrites anything after constructor. Please remove MOZ_KnownLive | ||||
5150 | // and MOZ_KNOWN_LIVE if anything marked as such becomes mutable. | ||||
5151 | const RefPtr<EventStateManager> mESM; | ||||
5152 | nsCOMArray<nsIContent> mTargets; | ||||
5153 | MOZ_KNOWN_LIVE nsCOMPtr<nsIContent> mRelatedTarget; | ||||
5154 | WidgetMouseEvent* mMouseEvent; | ||||
5155 | EventMessage mEventMessage; | ||||
5156 | }; | ||||
5157 | |||||
5158 | void EventStateManager::NotifyMouseOut(WidgetMouseEvent* aMouseEvent, | ||||
5159 | nsIContent* aMovingInto) { | ||||
5160 | const bool isPointer = aMouseEvent->mClass == ePointerEventClass; | ||||
5161 | LogModule* const logModule = | ||||
5162 | isPointer
| ||||
5163 | |||||
5164 | RefPtr<OverOutElementsWrapper> wrapper = GetWrapperByEventID(aMouseEvent); | ||||
5165 | |||||
5166 | // If there is no deepest "leave" event target, that means the last "over" | ||||
5167 | // target has already been removed from the tree. Therefore, checking only | ||||
5168 | // the "leave" event target is enough. | ||||
5169 | if (!wrapper || !wrapper->GetDeepestLeaveEventTarget()) { | ||||
5170 | return; | ||||
5171 | } | ||||
5172 | // Before firing "out" and/or "leave" events, check for recursion | ||||
5173 | if (wrapper->IsDispatchingOutEventOnLastOverEventTarget()) { | ||||
5174 | return; | ||||
5175 | } | ||||
5176 | |||||
5177 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "NotifyMouseOut: the source event is %s (IsReal()=%s)" , ToChar(aMouseEvent->mMessage), aMouseEvent->IsReal() ? "true" : "false"); } } while (0) | ||||
5178 | ("NotifyMouseOut: the source event is %s (IsReal()=%s)",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "NotifyMouseOut: the source event is %s (IsReal()=%s)" , ToChar(aMouseEvent->mMessage), aMouseEvent->IsReal() ? "true" : "false"); } } while (0) | ||||
5179 | ToChar(aMouseEvent->mMessage),do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "NotifyMouseOut: the source event is %s (IsReal()=%s)" , ToChar(aMouseEvent->mMessage), aMouseEvent->IsReal() ? "true" : "false"); } } while (0) | ||||
5180 | aMouseEvent->IsReal() ? "true" : "false"))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "NotifyMouseOut: the source event is %s (IsReal()=%s)" , ToChar(aMouseEvent->mMessage), aMouseEvent->IsReal() ? "true" : "false"); } } while (0); | ||||
5181 | |||||
5182 | // XXX If a content node is a container of remove content, it should be | ||||
5183 | // replaced with them and its children should not be visible. Therefore, | ||||
5184 | // if the deepest "enter" target is not the last "over" target, i.e., the | ||||
5185 | // last "over" target has been removed from the DOM tree, it means that the | ||||
5186 | // child/descendant was not replaced by remote content. So, | ||||
5187 | // wrapper->GetOutEventTaget() may be enough here. | ||||
5188 | if (RefPtr<nsFrameLoaderOwner> flo = | ||||
5189 | do_QueryObject(wrapper->GetDeepestLeaveEventTarget())) { | ||||
5190 | if (BrowsingContext* bc = flo->GetExtantBrowsingContext()) { | ||||
5191 | if (nsIDocShell* docshell = bc->GetDocShell()) { | ||||
5192 | if (RefPtr<nsPresContext> presContext = docshell->GetPresContext()) { | ||||
5193 | EventStateManager* kidESM = presContext->EventStateManager(); | ||||
5194 | // Not moving into any element in this subdocument | ||||
5195 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Notifying child EventStateManager (%p) of \"out\" " "event...", kidESM); } } while (0) | ||||
5196 | ("Notifying child EventStateManager (%p) of \"out\" "do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Notifying child EventStateManager (%p) of \"out\" " "event...", kidESM); } } while (0) | ||||
5197 | "event...",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Notifying child EventStateManager (%p) of \"out\" " "event...", kidESM); } } while (0) | ||||
5198 | kidESM))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Notifying child EventStateManager (%p) of \"out\" " "event...", kidESM); } } while (0); | ||||
5199 | kidESM->NotifyMouseOut(aMouseEvent, nullptr); | ||||
5200 | } | ||||
5201 | } | ||||
5202 | } | ||||
5203 | } | ||||
5204 | // That could have caused DOM events which could wreak havoc. Reverify | ||||
5205 | // things and be careful. | ||||
5206 | if (!wrapper->GetDeepestLeaveEventTarget()) { | ||||
5207 | return; | ||||
5208 | } | ||||
5209 | |||||
5210 | wrapper->WillDispatchOutAndOrLeaveEvent(); | ||||
5211 | |||||
5212 | // Don't touch hover state if aMovingInto is non-null. Caller will update | ||||
5213 | // hover state itself, and we have optimizations for hover switching between | ||||
5214 | // two nearby elements both deep in the DOM tree that would be defeated by | ||||
5215 | // switching the hover state to null here. | ||||
5216 | if (!aMovingInto
| ||||
5217 | // Unset :hover | ||||
5218 | SetContentState(nullptr, ElementState::HOVER); | ||||
5219 | } | ||||
5220 | |||||
5221 | EnterLeaveDispatcher leaveDispatcher( | ||||
5222 | this, wrapper->GetDeepestLeaveEventTarget(), aMovingInto, aMouseEvent, | ||||
5223 | isPointer
| ||||
5224 | |||||
5225 | // "out" events hould be fired only when the deepest "leave" event target | ||||
5226 | // is the last "over" event target. | ||||
5227 | if (nsCOMPtr<nsIContent> outEventTarget = wrapper->GetOutEventTarget()) { | ||||
5228 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p)", isPointer ? "ePointerOut" : "eMouseOut", outEventTarget ? ToString(*outEventTarget ).c_str() : "nullptr", outEventTarget.get()); } } while (0) | ||||
5229 | ("Dispatching %s event to %s (%p)",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p)", isPointer ? "ePointerOut" : "eMouseOut", outEventTarget ? ToString(*outEventTarget ).c_str() : "nullptr", outEventTarget.get()); } } while (0) | ||||
5230 | isPointer ? "ePointerOut" : "eMouseOut",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p)", isPointer ? "ePointerOut" : "eMouseOut", outEventTarget ? ToString(*outEventTarget ).c_str() : "nullptr", outEventTarget.get()); } } while (0) | ||||
5231 | outEventTarget ? ToString(*outEventTarget).c_str() : "nullptr",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p)", isPointer ? "ePointerOut" : "eMouseOut", outEventTarget ? ToString(*outEventTarget ).c_str() : "nullptr", outEventTarget.get()); } } while (0) | ||||
5232 | outEventTarget.get()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p)", isPointer ? "ePointerOut" : "eMouseOut", outEventTarget ? ToString(*outEventTarget ).c_str() : "nullptr", outEventTarget.get()); } } while (0); | ||||
5233 | nsCOMPtr<nsIWidget> widget = DispatchMouseOrPointerBoundaryEvent( | ||||
5234 | aMouseEvent, isPointer
| ||||
5235 | aMovingInto); | ||||
5236 | } | ||||
5237 | |||||
5238 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerLeave" : "eMouseLeave", wrapper->GetDeepestLeaveEventTarget () ? ToString(*wrapper->GetDeepestLeaveEventTarget()).c_str () : "nullptr", wrapper->GetDeepestLeaveEventTarget()); } } while (0) | ||||
5239 | ("Dispatching %s event to %s (%p) and its ancestors",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerLeave" : "eMouseLeave", wrapper->GetDeepestLeaveEventTarget () ? ToString(*wrapper->GetDeepestLeaveEventTarget()).c_str () : "nullptr", wrapper->GetDeepestLeaveEventTarget()); } } while (0) | ||||
5240 | isPointer ? "ePointerLeave" : "eMouseLeave",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerLeave" : "eMouseLeave", wrapper->GetDeepestLeaveEventTarget () ? ToString(*wrapper->GetDeepestLeaveEventTarget()).c_str () : "nullptr", wrapper->GetDeepestLeaveEventTarget()); } } while (0) | ||||
5241 | wrapper->GetDeepestLeaveEventTarget()do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerLeave" : "eMouseLeave", wrapper->GetDeepestLeaveEventTarget () ? ToString(*wrapper->GetDeepestLeaveEventTarget()).c_str () : "nullptr", wrapper->GetDeepestLeaveEventTarget()); } } while (0) | ||||
5242 | ? ToString(*wrapper->GetDeepestLeaveEventTarget()).c_str()do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerLeave" : "eMouseLeave", wrapper->GetDeepestLeaveEventTarget () ? ToString(*wrapper->GetDeepestLeaveEventTarget()).c_str () : "nullptr", wrapper->GetDeepestLeaveEventTarget()); } } while (0) | ||||
5243 | : "nullptr",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerLeave" : "eMouseLeave", wrapper->GetDeepestLeaveEventTarget () ? ToString(*wrapper->GetDeepestLeaveEventTarget()).c_str () : "nullptr", wrapper->GetDeepestLeaveEventTarget()); } } while (0) | ||||
5244 | wrapper->GetDeepestLeaveEventTarget()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerLeave" : "eMouseLeave", wrapper->GetDeepestLeaveEventTarget () ? ToString(*wrapper->GetDeepestLeaveEventTarget()).c_str () : "nullptr", wrapper->GetDeepestLeaveEventTarget()); } } while (0); | ||||
5245 | leaveDispatcher.Dispatch(); | ||||
5246 | |||||
5247 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatched \"out\" and/or \"leave\" events" ); } } while (0) | ||||
5248 | ("Dispatched \"out\" and/or \"leave\" events"))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatched \"out\" and/or \"leave\" events" ); } } while (0); | ||||
5249 | wrapper->DidDispatchOutAndOrLeaveEvent(); | ||||
5250 | } | ||||
5251 | |||||
5252 | void EventStateManager::RecomputeMouseEnterStateForRemoteFrame( | ||||
5253 | Element& aElement) { | ||||
5254 | if (!mMouseEnterLeaveHelper || | ||||
5255 | mMouseEnterLeaveHelper->GetDeepestLeaveEventTarget() != &aElement) { | ||||
5256 | return; | ||||
5257 | } | ||||
5258 | |||||
5259 | if (BrowserParent* remote = BrowserParent::GetFrom(&aElement)) { | ||||
5260 | remote->MouseEnterIntoWidget(); | ||||
5261 | } | ||||
5262 | } | ||||
5263 | |||||
5264 | void EventStateManager::NotifyMouseOver(WidgetMouseEvent* aMouseEvent, | ||||
5265 | nsIContent* aContent) { | ||||
5266 | NS_ASSERTION(aContent, "Mouse must be over something")do { if (!(aContent)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Mouse must be over something" , "aContent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5266); MOZ_PretendNoReturn(); } } while (0); | ||||
5267 | |||||
5268 | const bool isPointer = aMouseEvent->mClass == ePointerEventClass; | ||||
5269 | LogModule* const logModule = | ||||
5270 | isPointer ? sPointerBoundaryLog : sMouseBoundaryLog; | ||||
5271 | |||||
5272 | RefPtr<OverOutElementsWrapper> wrapper = GetWrapperByEventID(aMouseEvent); | ||||
5273 | |||||
5274 | // If we have next "out" event target and it's the new "over" target, we don't | ||||
5275 | // need to dispatch "out" nor "enter" event. | ||||
5276 | if (!wrapper || aContent == wrapper->GetOutEventTarget()) { | ||||
5277 | return; | ||||
5278 | } | ||||
5279 | |||||
5280 | // Before firing "over" and "enter" events, check for recursion | ||||
5281 | if (wrapper->IsDispatchingOverEventOn(aContent)) { | ||||
5282 | return; | ||||
5283 | } | ||||
5284 | |||||
5285 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "NotifyMouseOver: the source event is %s (IsReal()=%s)" , ToChar(aMouseEvent->mMessage), aMouseEvent->IsReal() ? "true" : "false"); } } while (0) | ||||
5286 | ("NotifyMouseOver: the source event is %s (IsReal()=%s)",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "NotifyMouseOver: the source event is %s (IsReal()=%s)" , ToChar(aMouseEvent->mMessage), aMouseEvent->IsReal() ? "true" : "false"); } } while (0) | ||||
5287 | ToChar(aMouseEvent->mMessage),do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "NotifyMouseOver: the source event is %s (IsReal()=%s)" , ToChar(aMouseEvent->mMessage), aMouseEvent->IsReal() ? "true" : "false"); } } while (0) | ||||
5288 | aMouseEvent->IsReal() ? "true" : "false"))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "NotifyMouseOver: the source event is %s (IsReal()=%s)" , ToChar(aMouseEvent->mMessage), aMouseEvent->IsReal() ? "true" : "false"); } } while (0); | ||||
5289 | |||||
5290 | // Check to see if we're a subdocument and if so update the parent | ||||
5291 | // document's ESM state to indicate that the mouse is over the | ||||
5292 | // content associated with our subdocument. | ||||
5293 | EnsureDocument(mPresContext); | ||||
5294 | if (Document* parentDoc = mDocument->GetInProcessParentDocument()) { | ||||
5295 | if (nsCOMPtr<nsIContent> docContent = mDocument->GetEmbedderElement()) { | ||||
5296 | if (PresShell* parentPresShell = parentDoc->GetPresShell()) { | ||||
5297 | RefPtr<EventStateManager> parentESM = | ||||
5298 | parentPresShell->GetPresContext()->EventStateManager(); | ||||
5299 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Notifying parent EventStateManager (%p) of \"over\" " "event...", parentESM.get()); } } while (0) | ||||
5300 | ("Notifying parent EventStateManager (%p) of \"over\" "do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Notifying parent EventStateManager (%p) of \"over\" " "event...", parentESM.get()); } } while (0) | ||||
5301 | "event...",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Notifying parent EventStateManager (%p) of \"over\" " "event...", parentESM.get()); } } while (0) | ||||
5302 | parentESM.get()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Notifying parent EventStateManager (%p) of \"over\" " "event...", parentESM.get()); } } while (0); | ||||
5303 | parentESM->NotifyMouseOver(aMouseEvent, docContent); | ||||
5304 | } | ||||
5305 | } | ||||
5306 | } | ||||
5307 | // Firing the DOM event in the parent document could cause all kinds | ||||
5308 | // of havoc. Reverify and take care. | ||||
5309 | if (aContent == wrapper->GetOutEventTarget()) { | ||||
5310 | return; | ||||
5311 | } | ||||
5312 | |||||
5313 | // Remember the deepest leave event target as the related content for the | ||||
5314 | // DispatchMouseOrPointerBoundaryEvent() call below, since NotifyMouseOut() | ||||
5315 | // resets it, bug 298477. | ||||
5316 | nsCOMPtr<nsIContent> deepestLeaveEventTarget = | ||||
5317 | wrapper->GetDeepestLeaveEventTarget(); | ||||
5318 | |||||
5319 | EnterLeaveDispatcher enterDispatcher(this, aContent, deepestLeaveEventTarget, | ||||
5320 | aMouseEvent, | ||||
5321 | isPointer ? ePointerEnter : eMouseEnter); | ||||
5322 | |||||
5323 | if (!isPointer) { | ||||
5324 | SetContentState(aContent, ElementState::HOVER); | ||||
5325 | } | ||||
5326 | |||||
5327 | NotifyMouseOut(aMouseEvent, aContent); | ||||
5328 | |||||
5329 | wrapper->WillDispatchOverAndEnterEvent(aContent); | ||||
5330 | |||||
5331 | // Fire mouseover | ||||
5332 | // XXX If aContent has already been removed from the DOM tree, what should we | ||||
5333 | // do? At least, dispatching `mouseover` on it is odd. | ||||
5334 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p)", isPointer ? "ePointerOver" : "eMoustOver", aContent ? ToString(*aContent ).c_str() : "nullptr", aContent); } } while (0) | ||||
5335 | ("Dispatching %s event to %s (%p)",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p)", isPointer ? "ePointerOver" : "eMoustOver", aContent ? ToString(*aContent ).c_str() : "nullptr", aContent); } } while (0) | ||||
5336 | isPointer ? "ePointerOver" : "eMoustOver",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p)", isPointer ? "ePointerOver" : "eMoustOver", aContent ? ToString(*aContent ).c_str() : "nullptr", aContent); } } while (0) | ||||
5337 | aContent ? ToString(*aContent).c_str() : "nullptr", aContent))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p)", isPointer ? "ePointerOver" : "eMoustOver", aContent ? ToString(*aContent ).c_str() : "nullptr", aContent); } } while (0); | ||||
5338 | nsCOMPtr<nsIWidget> targetWidget = DispatchMouseOrPointerBoundaryEvent( | ||||
5339 | aMouseEvent, isPointer ? ePointerOver : eMouseOver, aContent, | ||||
5340 | deepestLeaveEventTarget); | ||||
5341 | |||||
5342 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerEnter" : "eMouseEnter", aContent ? ToString (*aContent).c_str() : "nullptr", aContent); } } while (0) | ||||
5343 | ("Dispatching %s event to %s (%p) and its ancestors",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerEnter" : "eMouseEnter", aContent ? ToString (*aContent).c_str() : "nullptr", aContent); } } while (0) | ||||
5344 | isPointer ? "ePointerEnter" : "eMouseEnter",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerEnter" : "eMouseEnter", aContent ? ToString (*aContent).c_str() : "nullptr", aContent); } } while (0) | ||||
5345 | aContent ? ToString(*aContent).c_str() : "nullptr", aContent))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatching %s event to %s (%p) and its ancestors" , isPointer ? "ePointerEnter" : "eMouseEnter", aContent ? ToString (*aContent).c_str() : "nullptr", aContent); } } while (0); | ||||
5346 | enterDispatcher.Dispatch(); | ||||
5347 | |||||
5348 | MOZ_LOG(logModule, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatched \"over\" and \"enter\" events (the original \"over\" " "event target was in the document %p, and now in %p)", aContent ->GetComposedDoc(), mDocument.get()); } } while (0) | ||||
5349 | ("Dispatched \"over\" and \"enter\" events (the original \"over\" "do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatched \"over\" and \"enter\" events (the original \"over\" " "event target was in the document %p, and now in %p)", aContent ->GetComposedDoc(), mDocument.get()); } } while (0) | ||||
5350 | "event target was in the document %p, and now in %p)",do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatched \"over\" and \"enter\" events (the original \"over\" " "event target was in the document %p, and now in %p)", aContent ->GetComposedDoc(), mDocument.get()); } } while (0) | ||||
5351 | aContent->GetComposedDoc(), mDocument.get()))do { const ::mozilla::LogModule* moz_real_module = logModule; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "Dispatched \"over\" and \"enter\" events (the original \"over\" " "event target was in the document %p, and now in %p)", aContent ->GetComposedDoc(), mDocument.get()); } } while (0); | ||||
5352 | wrapper->DidDispatchOverAndEnterEvent( | ||||
5353 | aContent->GetComposedDoc() == mDocument ? aContent : nullptr, | ||||
5354 | targetWidget); | ||||
5355 | } | ||||
5356 | |||||
5357 | // Returns the center point of the window's client area. This is | ||||
5358 | // in widget coordinates, i.e. relative to the widget's top-left | ||||
5359 | // corner, not in screen coordinates, the same units that UIEvent:: | ||||
5360 | // refpoint is in. It may not be the exact center of the window if | ||||
5361 | // the platform requires rounding the coordinate. | ||||
5362 | static LayoutDeviceIntPoint GetWindowClientRectCenter(nsIWidget* aWidget) { | ||||
5363 | NS_ENSURE_TRUE(aWidget, LayoutDeviceIntPoint(0, 0))do { if ((__builtin_expect(!!(!(aWidget)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aWidget" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5363); return LayoutDeviceIntPoint(0, 0); } } while (false); | ||||
5364 | |||||
5365 | LayoutDeviceIntRect rect = aWidget->GetClientBounds(); | ||||
5366 | LayoutDeviceIntPoint point(rect.width / 2, rect.height / 2); | ||||
5367 | int32_t round = aWidget->RoundsWidgetCoordinatesTo(); | ||||
5368 | point.x = point.x / round * round; | ||||
5369 | point.y = point.y / round * round; | ||||
5370 | return point; | ||||
5371 | } | ||||
5372 | |||||
5373 | void EventStateManager::GeneratePointerEnterExit(EventMessage aMessage, | ||||
5374 | WidgetMouseEvent* aEvent) { | ||||
5375 | WidgetPointerEvent pointerEvent(*aEvent); | ||||
5376 | pointerEvent.mMessage = aMessage; | ||||
5377 | GenerateMouseEnterExit(&pointerEvent); | ||||
5378 | } | ||||
5379 | |||||
5380 | /* static */ | ||||
5381 | void EventStateManager::UpdateLastRefPointOfMouseEvent( | ||||
5382 | WidgetMouseEvent* aMouseEvent) { | ||||
5383 | if (aMouseEvent->mMessage != eMouseMove && | ||||
5384 | aMouseEvent->mMessage != ePointerMove) { | ||||
5385 | return; | ||||
5386 | } | ||||
5387 | |||||
5388 | // Mouse movement is reported on the MouseEvent.movement{X,Y} fields. | ||||
5389 | // Movement is calculated in UIEvent::GetMovementPoint() as: | ||||
5390 | // previous_mousemove_mRefPoint - current_mousemove_mRefPoint. | ||||
5391 | if (PointerLockManager::IsLocked() && aMouseEvent->mWidget) { | ||||
5392 | // The pointer is locked. If the pointer is not located at the center of | ||||
5393 | // the window, dispatch a synthetic mousemove to return the pointer there. | ||||
5394 | // Doing this between "real" pointer moves gives the impression that the | ||||
5395 | // (locked) pointer can continue moving and won't stop at the screen | ||||
5396 | // boundary. We cancel the synthetic event so that we don't end up | ||||
5397 | // dispatching the centering move event to content. | ||||
5398 | aMouseEvent->mLastRefPoint = | ||||
5399 | GetWindowClientRectCenter(aMouseEvent->mWidget); | ||||
5400 | |||||
5401 | } else if (sLastRefPoint == kInvalidRefPoint) { | ||||
5402 | // We don't have a valid previous mousemove mRefPoint. This is either | ||||
5403 | // the first move we've encountered, or the mouse has just re-entered | ||||
5404 | // the application window. We should report (0,0) movement for this | ||||
5405 | // case, so make the current and previous mRefPoints the same. | ||||
5406 | aMouseEvent->mLastRefPoint = aMouseEvent->mRefPoint; | ||||
5407 | } else { | ||||
5408 | aMouseEvent->mLastRefPoint = sLastRefPoint; | ||||
5409 | } | ||||
5410 | } | ||||
5411 | |||||
5412 | /* static */ | ||||
5413 | void EventStateManager::ResetPointerToWindowCenterWhilePointerLocked( | ||||
5414 | WidgetMouseEvent* aMouseEvent) { | ||||
5415 | MOZ_ASSERT(PointerLockManager::IsLocked())do { static_assert( mozilla::detail::AssertionConditionType< decltype(PointerLockManager::IsLocked())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(PointerLockManager::IsLocked ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("PointerLockManager::IsLocked()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5415); AnnotateMozCrashReason("MOZ_ASSERT" "(" "PointerLockManager::IsLocked()" ")"); do { *((volatile int*)__null) = 5415; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
5416 | if ((aMouseEvent->mMessage != eMouseMove && | ||||
5417 | aMouseEvent->mMessage != ePointerMove) || | ||||
5418 | !aMouseEvent->mWidget) { | ||||
5419 | return; | ||||
5420 | } | ||||
5421 | |||||
5422 | // We generate pointermove from mousemove event, so only synthesize native | ||||
5423 | // mouse move and update sSynthCenteringPoint by mousemove event. | ||||
5424 | bool updateSynthCenteringPoint = aMouseEvent->mMessage == eMouseMove; | ||||
5425 | |||||
5426 | // The pointer is locked. If the pointer is not located at the center of | ||||
5427 | // the window, dispatch a synthetic mousemove to return the pointer there. | ||||
5428 | // Doing this between "real" pointer moves gives the impression that the | ||||
5429 | // (locked) pointer can continue moving and won't stop at the screen | ||||
5430 | // boundary. We cancel the synthetic event so that we don't end up | ||||
5431 | // dispatching the centering move event to content. | ||||
5432 | LayoutDeviceIntPoint center = GetWindowClientRectCenter(aMouseEvent->mWidget); | ||||
5433 | |||||
5434 | if (aMouseEvent->mRefPoint != center && updateSynthCenteringPoint) { | ||||
5435 | // Mouse move doesn't finish at the center of the window. Dispatch a | ||||
5436 | // synthetic native mouse event to move the pointer back to the center | ||||
5437 | // of the window, to faciliate more movement. But first, record that | ||||
5438 | // we've dispatched a synthetic mouse movement, so we can cancel it | ||||
5439 | // in the other branch here. | ||||
5440 | sSynthCenteringPoint = center; | ||||
5441 | // XXX Once we fix XXX comments in SetPointerLock about this API, we could | ||||
5442 | // restrict that this API works only in the automation mode or in the | ||||
5443 | // pointer locked situation. | ||||
5444 | aMouseEvent->mWidget->SynthesizeNativeMouseMove( | ||||
5445 | center + aMouseEvent->mWidget->WidgetToScreenOffset(), nullptr); | ||||
5446 | } else if (aMouseEvent->mRefPoint == sSynthCenteringPoint) { | ||||
5447 | // This is the "synthetic native" event we dispatched to re-center the | ||||
5448 | // pointer. Cancel it so we don't expose the centering move to content. | ||||
5449 | aMouseEvent->StopPropagation(); | ||||
5450 | // Clear sSynthCenteringPoint so we don't cancel other events | ||||
5451 | // targeted at the center. | ||||
5452 | if (updateSynthCenteringPoint) { | ||||
5453 | sSynthCenteringPoint = kInvalidRefPoint; | ||||
5454 | } | ||||
5455 | } | ||||
5456 | } | ||||
5457 | |||||
5458 | /* static */ | ||||
5459 | void EventStateManager::UpdateLastPointerPosition( | ||||
5460 | WidgetMouseEvent* aMouseEvent) { | ||||
5461 | if (aMouseEvent->mMessage != eMouseMove) { | ||||
5462 | return; | ||||
5463 | } | ||||
5464 | sLastRefPoint = aMouseEvent->mRefPoint; | ||||
5465 | } | ||||
5466 | |||||
5467 | void EventStateManager::GenerateMouseEnterExit(WidgetMouseEvent* aMouseEvent) { | ||||
5468 | EnsureDocument(mPresContext); | ||||
5469 | if (!mDocument) return; | ||||
5470 | |||||
5471 | // Hold onto old target content through the event and reset after. | ||||
5472 | nsCOMPtr<nsIContent> targetBeforeEvent = mCurrentTargetContent; | ||||
5473 | |||||
5474 | switch (aMouseEvent->mMessage) { | ||||
5475 | case eMouseMove: | ||||
5476 | case ePointerMove: | ||||
5477 | case ePointerDown: | ||||
5478 | case ePointerGotCapture: { | ||||
5479 | // Get the target content target (mousemove target == mouseover target) | ||||
5480 | nsCOMPtr<nsIContent> targetElement = GetEventTargetContent(aMouseEvent); | ||||
5481 | if (!targetElement) { | ||||
5482 | // We're always over the document root, even if we're only | ||||
5483 | // over dead space in a page (whose frame is not associated with | ||||
5484 | // any content) or in print preview dead space | ||||
5485 | targetElement = mDocument->GetRootElement(); | ||||
5486 | } | ||||
5487 | if (targetElement) { | ||||
5488 | NotifyMouseOver(aMouseEvent, targetElement); | ||||
5489 | } | ||||
5490 | break; | ||||
5491 | } | ||||
5492 | case ePointerUp: { | ||||
5493 | if (!StaticPrefs:: | ||||
5494 | dom_events_mouse_pointer_boundary_keep_enter_targets_after_over_target_removed()) { | ||||
5495 | // In the legacy mode, we should do nothing if the event has not been | ||||
5496 | // dispatched yet (i.e., called by PreHandleEvent). | ||||
5497 | // On the other hand, if the event was dispatched (i.e., called by | ||||
5498 | // PostEventHandler), we need to dispatch "pointerout" and | ||||
5499 | // "pointerleave" events because the pointer will be removed | ||||
5500 | // (invalidated) by the "pointerup" operation. | ||||
5501 | if (!aMouseEvent->mFlags.mDispatchedAtLeastOnce) { | ||||
5502 | break; | ||||
5503 | } | ||||
5504 | MOZ_ASSERT(!aMouseEvent->InputSourceSupportsHover())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aMouseEvent->InputSourceSupportsHover())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aMouseEvent->InputSourceSupportsHover()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aMouseEvent->InputSourceSupportsHover()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5504); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aMouseEvent->InputSourceSupportsHover()" ")"); do { *((volatile int*)__null) = 5504; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
5505 | // Get the target content target (pointermove target == pointerover | ||||
5506 | // target) | ||||
5507 | nsCOMPtr<nsIContent> targetElement = GetEventTargetContent(aMouseEvent); | ||||
5508 | if (!targetElement) { | ||||
5509 | // We're always over the document root, even if we're only | ||||
5510 | // over dead space in a page (whose frame is not associated with | ||||
5511 | // any content) or in print preview dead space | ||||
5512 | targetElement = mDocument->GetRootElement(); | ||||
5513 | } | ||||
5514 | if (targetElement) { | ||||
5515 | // XXX It's odd to override the `pointerout` event target with the | ||||
5516 | // content under the pointer or something because it may have never | ||||
5517 | // received `pointerover` event. I think that this was required for | ||||
5518 | // digitizer which supports hover state (bug 985511). However, this | ||||
5519 | // is now not called at ePointerUp if the device supports hover. | ||||
5520 | RefPtr<OverOutElementsWrapper> helper = | ||||
5521 | GetWrapperByEventID(aMouseEvent); | ||||
5522 | if (helper) { | ||||
5523 | helper->OverrideOverEventTarget(targetElement); | ||||
5524 | } | ||||
5525 | NotifyMouseOut(aMouseEvent, nullptr); | ||||
5526 | } | ||||
5527 | break; | ||||
5528 | } | ||||
5529 | |||||
5530 | if (aMouseEvent->mFlags.mDispatchedAtLeastOnce) { | ||||
5531 | // If we've already dispatched the pointerup event caused by | ||||
5532 | // non-hoverable input device like touch, we need to synthesize | ||||
5533 | // pointerout and pointerleave events because the poiner is valid only | ||||
5534 | // while it's "down". | ||||
5535 | if (!aMouseEvent->InputSourceSupportsHover()) { | ||||
5536 | NotifyMouseOut(aMouseEvent, nullptr); | ||||
5537 | } | ||||
5538 | break; | ||||
5539 | } | ||||
5540 | |||||
5541 | // If we're going to dispatch the pointerup event and the element under | ||||
5542 | // the pointer is changed from the previous pointer event dispatching, we | ||||
5543 | // need to dispatch pointer boundary events. If the pointing device is | ||||
5544 | // hoverable, we always need to do it. Otherwise, an element captures the | ||||
5545 | // pointer by default. If so, we don't need the boundary events, but if | ||||
5546 | // the capture has already been released, e.g., by the capturing element | ||||
5547 | // is removed, we need to dispatch the pointer boundary event the same | ||||
5548 | // way as with hoverable pointer. | ||||
5549 | if (aMouseEvent->InputSourceSupportsHover() || | ||||
5550 | !PointerEventHandler::GetPointerCapturingElement( | ||||
5551 | aMouseEvent->pointerId)) { | ||||
5552 | nsCOMPtr<nsIContent> targetElement = GetEventTargetContent(aMouseEvent); | ||||
5553 | if (!targetElement) { | ||||
5554 | targetElement = mDocument->GetRootElement(); | ||||
5555 | } | ||||
5556 | if (targetElement) { | ||||
5557 | NotifyMouseOver(aMouseEvent, targetElement); | ||||
5558 | } | ||||
5559 | break; | ||||
5560 | } | ||||
5561 | break; | ||||
5562 | } | ||||
5563 | case ePointerLeave: | ||||
5564 | case ePointerCancel: | ||||
5565 | case eMouseExitFromWidget: { | ||||
5566 | // This is actually the window mouse exit or pointer leave event. We're | ||||
5567 | // not moving into any new element. | ||||
5568 | |||||
5569 | RefPtr<OverOutElementsWrapper> helper = GetWrapperByEventID(aMouseEvent); | ||||
5570 | if (helper) { | ||||
5571 | nsCOMPtr<nsIWidget> lastOverWidget = helper->GetLastOverWidget(); | ||||
5572 | if (lastOverWidget && | ||||
5573 | nsContentUtils::GetTopLevelWidget(aMouseEvent->mWidget) != | ||||
5574 | nsContentUtils::GetTopLevelWidget(lastOverWidget)) { | ||||
5575 | // the Mouse/PointerOut event widget doesn't have same top widget with | ||||
5576 | // the last over event target, it's a spurious event for the frame for | ||||
5577 | // the target. | ||||
5578 | break; | ||||
5579 | } | ||||
5580 | } | ||||
5581 | |||||
5582 | // Reset sLastRefPoint, so that we'll know not to report any | ||||
5583 | // movement the next time we re-enter the window. | ||||
5584 | sLastRefPoint = kInvalidRefPoint; | ||||
5585 | |||||
5586 | NotifyMouseOut(aMouseEvent, nullptr); | ||||
5587 | break; | ||||
5588 | } | ||||
5589 | default: | ||||
5590 | break; | ||||
5591 | } | ||||
5592 | |||||
5593 | // reset mCurretTargetContent to what it was | ||||
5594 | mCurrentTargetContent = targetBeforeEvent; | ||||
5595 | } | ||||
5596 | |||||
5597 | OverOutElementsWrapper* EventStateManager::GetWrapperByEventID( | ||||
5598 | WidgetMouseEvent* aEvent) { | ||||
5599 | WidgetPointerEvent* pointer = aEvent->AsPointerEvent(); | ||||
5600 | if (!pointer) { | ||||
5601 | MOZ_ASSERT(aEvent->AsMouseEvent() != nullptr)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->AsMouseEvent() != nullptr)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->AsMouseEvent() != nullptr))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aEvent->AsMouseEvent() != nullptr", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5601); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->AsMouseEvent() != nullptr" ")"); do { *((volatile int*)__null) = 5601; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
5602 | if (!mMouseEnterLeaveHelper) { | ||||
5603 | mMouseEnterLeaveHelper = new OverOutElementsWrapper( | ||||
5604 | OverOutElementsWrapper::BoundaryEventType::Mouse); | ||||
5605 | } | ||||
5606 | return mMouseEnterLeaveHelper; | ||||
5607 | } | ||||
5608 | return mPointersEnterLeaveHelper.GetOrInsertNew( | ||||
5609 | pointer->pointerId, OverOutElementsWrapper::BoundaryEventType::Pointer); | ||||
5610 | } | ||||
5611 | |||||
5612 | /* static */ | ||||
5613 | void EventStateManager::SetPointerLock(nsIWidget* aWidget, | ||||
5614 | nsPresContext* aPresContext) { | ||||
5615 | // Reset mouse wheel transaction | ||||
5616 | WheelTransaction::EndTransaction(); | ||||
5617 | |||||
5618 | // Deal with DnD events | ||||
5619 | nsCOMPtr<nsIDragService> dragService = | ||||
5620 | do_GetService("@mozilla.org/widget/dragservice;1"); | ||||
5621 | |||||
5622 | if (PointerLockManager::IsLocked()) { | ||||
5623 | MOZ_ASSERT(aWidget, "Locking pointer requires a widget")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aWidget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aWidget))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aWidget" " (" "Locking pointer requires a widget" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5623); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aWidget" ") (" "Locking pointer requires a widget" ")"); do { *((volatile int *)__null) = 5623; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | ||||
5624 | MOZ_ASSERT(aPresContext, "Locking pointer requires a presContext")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPresContext" " (" "Locking pointer requires a presContext" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5624); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPresContext" ") (" "Locking pointer requires a presContext" ")"); do { *( (volatile int*)__null) = 5624; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); | ||||
5625 | |||||
5626 | // Release all pointer capture when a pointer lock is successfully applied | ||||
5627 | // on an element. | ||||
5628 | PointerEventHandler::ReleaseAllPointerCapture(); | ||||
5629 | |||||
5630 | // Store the last known ref point so we can reposition the pointer after | ||||
5631 | // unlock. | ||||
5632 | sPreLockScreenPoint = LayoutDeviceIntPoint::Round( | ||||
5633 | sLastScreenPoint * aPresContext->CSSToDevPixelScale()); | ||||
5634 | |||||
5635 | // Fire a synthetic mouse move to ensure event state is updated. We first | ||||
5636 | // set the mouse to the center of the window, so that the mouse event | ||||
5637 | // doesn't report any movement. | ||||
5638 | // XXX Cannot we do synthesize the native mousemove in the parent process | ||||
5639 | // with calling LockNativePointer below? Then, we could make this API | ||||
5640 | // work only in the automation mode. | ||||
5641 | sLastRefPoint = GetWindowClientRectCenter(aWidget); | ||||
5642 | aWidget->SynthesizeNativeMouseMove( | ||||
5643 | sLastRefPoint + aWidget->WidgetToScreenOffset(), nullptr); | ||||
5644 | |||||
5645 | // Suppress DnD | ||||
5646 | if (dragService) { | ||||
5647 | dragService->Suppress(); | ||||
5648 | } | ||||
5649 | |||||
5650 | // Activate native pointer lock on platforms where it is required (Wayland) | ||||
5651 | aWidget->LockNativePointer(); | ||||
5652 | } else { | ||||
5653 | if (aWidget) { | ||||
5654 | // Deactivate native pointer lock on platforms where it is required | ||||
5655 | aWidget->UnlockNativePointer(); | ||||
5656 | } | ||||
5657 | |||||
5658 | // Reset SynthCenteringPoint to invalid so that next time we start | ||||
5659 | // locking pointer, it has its initial value. | ||||
5660 | sSynthCenteringPoint = kInvalidRefPoint; | ||||
5661 | if (aWidget) { | ||||
5662 | // Unlocking, so return pointer to the original position by firing a | ||||
5663 | // synthetic mouse event. We first reset sLastRefPoint to its | ||||
5664 | // pre-pointerlock position, so that the synthetic mouse event reports | ||||
5665 | // no movement. | ||||
5666 | sLastRefPoint = sPreLockScreenPoint - aWidget->WidgetToScreenOffset(); | ||||
5667 | // XXX Cannot we do synthesize the native mousemove in the parent process | ||||
5668 | // with calling `UnlockNativePointer` above? Then, we could make this | ||||
5669 | // API work only in the automation mode. | ||||
5670 | aWidget->SynthesizeNativeMouseMove(sPreLockScreenPoint, nullptr); | ||||
5671 | } | ||||
5672 | |||||
5673 | // Unsuppress DnD | ||||
5674 | if (dragService) { | ||||
5675 | dragService->Unsuppress(); | ||||
5676 | } | ||||
5677 | } | ||||
5678 | } | ||||
5679 | |||||
5680 | void EventStateManager::GenerateDragDropEnterExit(nsPresContext* aPresContext, | ||||
5681 | WidgetDragEvent* aDragEvent) { | ||||
5682 | // Hold onto old target content through the event and reset after. | ||||
5683 | nsCOMPtr<nsIContent> targetBeforeEvent = mCurrentTargetContent; | ||||
5684 | |||||
5685 | switch (aDragEvent->mMessage) { | ||||
5686 | case eDragOver: { | ||||
5687 | // when dragging from one frame to another, events are fired in the | ||||
5688 | // order: dragexit, dragenter, dragleave | ||||
5689 | if (sLastDragOverFrame != mCurrentTarget) { | ||||
5690 | // We'll need the content, too, to check if it changed separately from | ||||
5691 | // the frames. | ||||
5692 | nsCOMPtr<nsIContent> lastContent; | ||||
5693 | nsCOMPtr<nsIContent> targetContent; | ||||
5694 | mCurrentTarget->GetContentForEvent(aDragEvent, | ||||
5695 | getter_AddRefs(targetContent)); | ||||
5696 | if (targetContent && targetContent->IsText()) { | ||||
5697 | targetContent = targetContent->GetFlattenedTreeParent(); | ||||
5698 | } | ||||
5699 | |||||
5700 | if (sLastDragOverFrame) { | ||||
5701 | // The frame has changed but the content may not have. Check before | ||||
5702 | // dispatching to content | ||||
5703 | sLastDragOverFrame->GetContentForEvent(aDragEvent, | ||||
5704 | getter_AddRefs(lastContent)); | ||||
5705 | if (lastContent && lastContent->IsText()) { | ||||
5706 | lastContent = lastContent->GetFlattenedTreeParent(); | ||||
5707 | } | ||||
5708 | |||||
5709 | RefPtr<nsPresContext> presContext = sLastDragOverFrame->PresContext(); | ||||
5710 | FireDragEnterOrExit(presContext, aDragEvent, eDragExit, targetContent, | ||||
5711 | lastContent, sLastDragOverFrame); | ||||
5712 | nsIContent* target = sLastDragOverFrame | ||||
5713 | ? sLastDragOverFrame.GetFrame()->GetContent() | ||||
5714 | : nullptr; | ||||
5715 | // XXXedgar, look like we need to consider fission OOP iframe, too. | ||||
5716 | if (IsTopLevelRemoteTarget(target)) { | ||||
5717 | // Dragging something and moving from web content to chrome only | ||||
5718 | // fires dragexit and dragleave to xul:browser. We have to forward | ||||
5719 | // dragexit to sLastDragOverFrame when its content is a remote | ||||
5720 | // target. We don't forward dragleave since it's generated from | ||||
5721 | // dragexit. | ||||
5722 | WidgetDragEvent remoteEvent(aDragEvent->IsTrusted(), eDragExit, | ||||
5723 | aDragEvent->mWidget); | ||||
5724 | remoteEvent.AssignDragEventData(*aDragEvent, true); | ||||
5725 | remoteEvent.mFlags.mIsSynthesizedForTests = | ||||
5726 | aDragEvent->mFlags.mIsSynthesizedForTests; | ||||
5727 | nsEventStatus remoteStatus = nsEventStatus_eIgnore; | ||||
5728 | HandleCrossProcessEvent(&remoteEvent, &remoteStatus); | ||||
5729 | } | ||||
5730 | } | ||||
5731 | |||||
5732 | AutoWeakFrame currentTraget = mCurrentTarget; | ||||
5733 | FireDragEnterOrExit(aPresContext, aDragEvent, eDragEnter, lastContent, | ||||
5734 | targetContent, currentTraget); | ||||
5735 | |||||
5736 | if (sLastDragOverFrame) { | ||||
5737 | RefPtr<nsPresContext> presContext = sLastDragOverFrame->PresContext(); | ||||
5738 | FireDragEnterOrExit(presContext, aDragEvent, eDragLeave, | ||||
5739 | targetContent, lastContent, sLastDragOverFrame); | ||||
5740 | } | ||||
5741 | |||||
5742 | sLastDragOverFrame = mCurrentTarget; | ||||
5743 | } | ||||
5744 | } break; | ||||
5745 | |||||
5746 | case eDragExit: { | ||||
5747 | // This is actually the window mouse exit event. | ||||
5748 | if (sLastDragOverFrame) { | ||||
5749 | nsCOMPtr<nsIContent> lastContent; | ||||
5750 | sLastDragOverFrame->GetContentForEvent(aDragEvent, | ||||
5751 | getter_AddRefs(lastContent)); | ||||
5752 | |||||
5753 | RefPtr<nsPresContext> lastDragOverFramePresContext = | ||||
5754 | sLastDragOverFrame->PresContext(); | ||||
5755 | FireDragEnterOrExit(lastDragOverFramePresContext, aDragEvent, eDragExit, | ||||
5756 | nullptr, lastContent, sLastDragOverFrame); | ||||
5757 | FireDragEnterOrExit(lastDragOverFramePresContext, aDragEvent, | ||||
5758 | eDragLeave, nullptr, lastContent, | ||||
5759 | sLastDragOverFrame); | ||||
5760 | |||||
5761 | sLastDragOverFrame = nullptr; | ||||
5762 | } | ||||
5763 | } break; | ||||
5764 | |||||
5765 | default: | ||||
5766 | break; | ||||
5767 | } | ||||
5768 | |||||
5769 | // reset mCurretTargetContent to what it was | ||||
5770 | mCurrentTargetContent = targetBeforeEvent; | ||||
5771 | |||||
5772 | // Now flush all pending notifications, for better responsiveness. | ||||
5773 | FlushLayout(aPresContext); | ||||
5774 | } | ||||
5775 | |||||
5776 | void EventStateManager::FireDragEnterOrExit(nsPresContext* aPresContext, | ||||
5777 | WidgetDragEvent* aDragEvent, | ||||
5778 | EventMessage aMessage, | ||||
5779 | nsIContent* aRelatedTarget, | ||||
5780 | nsIContent* aTargetContent, | ||||
5781 | AutoWeakFrame& aTargetFrame) { | ||||
5782 | MOZ_ASSERT(aMessage == eDragLeave || aMessage == eDragExit ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eDragLeave || aMessage == eDragExit || aMessage == eDragEnter)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aMessage == eDragLeave || aMessage == eDragExit || aMessage == eDragEnter))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMessage == eDragLeave || aMessage == eDragExit || aMessage == eDragEnter" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5783); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eDragLeave || aMessage == eDragExit || aMessage == eDragEnter" ")"); do { *((volatile int*)__null) = 5783; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
5783 | aMessage == eDragEnter)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMessage == eDragLeave || aMessage == eDragExit || aMessage == eDragEnter)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aMessage == eDragLeave || aMessage == eDragExit || aMessage == eDragEnter))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMessage == eDragLeave || aMessage == eDragExit || aMessage == eDragEnter" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5783); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMessage == eDragLeave || aMessage == eDragExit || aMessage == eDragEnter" ")"); do { *((volatile int*)__null) = 5783; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
5784 | nsEventStatus status = nsEventStatus_eIgnore; | ||||
5785 | WidgetDragEvent event(aDragEvent->IsTrusted(), aMessage, aDragEvent->mWidget); | ||||
5786 | event.AssignDragEventData(*aDragEvent, false); | ||||
5787 | event.mFlags.mIsSynthesizedForTests = | ||||
5788 | aDragEvent->mFlags.mIsSynthesizedForTests; | ||||
5789 | event.mRelatedTarget = aRelatedTarget; | ||||
5790 | if (aMessage == eDragExit && !StaticPrefs::dom_event_dragexit_enabled()) { | ||||
5791 | event.mFlags.mOnlyChromeDispatch = true; | ||||
5792 | } | ||||
5793 | |||||
5794 | mCurrentTargetContent = aTargetContent; | ||||
5795 | |||||
5796 | if (aTargetContent != aRelatedTarget) { | ||||
5797 | // XXX This event should still go somewhere!! | ||||
5798 | if (aTargetContent) { | ||||
5799 | EventDispatcher::Dispatch(aTargetContent, aPresContext, &event, nullptr, | ||||
5800 | &status); | ||||
5801 | } | ||||
5802 | |||||
5803 | // adjust the drag hover if the dragenter event was cancelled or this is a | ||||
5804 | // drag exit | ||||
5805 | if (status == nsEventStatus_eConsumeNoDefault || aMessage == eDragExit) { | ||||
5806 | SetContentState((aMessage == eDragEnter) ? aTargetContent : nullptr, | ||||
5807 | ElementState::DRAGOVER); | ||||
5808 | } | ||||
5809 | |||||
5810 | // collect any changes to moz cursor settings stored in the event's | ||||
5811 | // data transfer. | ||||
5812 | UpdateDragDataTransfer(&event); | ||||
5813 | } | ||||
5814 | |||||
5815 | // Finally dispatch the event to the frame | ||||
5816 | if (aTargetFrame) { | ||||
5817 | aTargetFrame->HandleEvent(aPresContext, &event, &status); | ||||
5818 | } | ||||
5819 | } | ||||
5820 | |||||
5821 | void EventStateManager::UpdateDragDataTransfer(WidgetDragEvent* dragEvent) { | ||||
5822 | NS_ASSERTION(dragEvent, "drag event is null in UpdateDragDataTransfer!")do { if (!(dragEvent)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "drag event is null in UpdateDragDataTransfer!" , "dragEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5822); MOZ_PretendNoReturn(); } } while (0); | ||||
5823 | if (!dragEvent->mDataTransfer) { | ||||
5824 | return; | ||||
5825 | } | ||||
5826 | |||||
5827 | nsCOMPtr<nsIDragSession> dragSession = | ||||
5828 | nsContentUtils::GetDragSession(mPresContext); | ||||
5829 | |||||
5830 | if (dragSession) { | ||||
5831 | // the initial dataTransfer is the one from the dragstart event that | ||||
5832 | // was set on the dragSession when the drag began. | ||||
5833 | RefPtr<DataTransfer> initialDataTransfer = dragSession->GetDataTransfer(); | ||||
5834 | if (initialDataTransfer) { | ||||
5835 | // retrieve the current moz cursor setting and save it. | ||||
5836 | nsAutoString mozCursor; | ||||
5837 | dragEvent->mDataTransfer->GetMozCursor(mozCursor); | ||||
5838 | initialDataTransfer->SetMozCursor(mozCursor); | ||||
5839 | } | ||||
5840 | } | ||||
5841 | } | ||||
5842 | |||||
5843 | nsresult EventStateManager::SetClickCount(WidgetMouseEvent* aEvent, | ||||
5844 | nsEventStatus* aStatus, | ||||
5845 | nsIContent* aOverrideClickTarget) { | ||||
5846 | nsCOMPtr<nsIContent> mouseContent = aOverrideClickTarget; | ||||
5847 | if (!mouseContent && mCurrentTarget) { | ||||
5848 | mCurrentTarget->GetContentForEvent(aEvent, getter_AddRefs(mouseContent)); | ||||
5849 | } | ||||
5850 | if (mouseContent && mouseContent->IsText()) { | ||||
5851 | nsINode* parent = mouseContent->GetFlattenedTreeParentNode(); | ||||
5852 | if (parent && parent->IsContent()) { | ||||
5853 | mouseContent = parent->AsContent(); | ||||
5854 | } | ||||
5855 | } | ||||
5856 | |||||
5857 | LastMouseDownInfo& mouseDownInfo = GetLastMouseDownInfo(aEvent->mButton); | ||||
5858 | if (aEvent->mMessage == eMouseDown) { | ||||
5859 | mouseDownInfo.mLastMouseDownContent = | ||||
5860 | !aEvent->mClickEventPrevented ? mouseContent : nullptr; | ||||
5861 | |||||
5862 | if (mouseDownInfo.mLastMouseDownContent) { | ||||
5863 | if (HTMLInputElement* input = HTMLInputElement::FromNodeOrNull( | ||||
5864 | mouseDownInfo.mLastMouseDownContent)) { | ||||
5865 | mouseDownInfo.mLastMouseDownInputControlType = | ||||
5866 | Some(input->ControlType()); | ||||
5867 | } else if (mouseDownInfo.mLastMouseDownContent | ||||
5868 | ->IsInNativeAnonymousSubtree()) { | ||||
5869 | if (HTMLInputElement* input = HTMLInputElement::FromNodeOrNull( | ||||
5870 | mouseDownInfo.mLastMouseDownContent | ||||
5871 | ->GetFlattenedTreeParent())) { | ||||
5872 | mouseDownInfo.mLastMouseDownInputControlType = | ||||
5873 | Some(input->ControlType()); | ||||
5874 | } | ||||
5875 | } | ||||
5876 | } | ||||
5877 | } else { | ||||
5878 | aEvent->mClickTarget = | ||||
5879 | !aEvent->mClickEventPrevented | ||||
5880 | ? GetCommonAncestorForMouseUp( | ||||
5881 | mouseContent, mouseDownInfo.mLastMouseDownContent, | ||||
5882 | mouseDownInfo.mLastMouseDownInputControlType) | ||||
5883 | : nullptr; | ||||
5884 | if (aEvent->mClickTarget) { | ||||
5885 | aEvent->mClickCount = mouseDownInfo.mClickCount; | ||||
5886 | mouseDownInfo.mClickCount = 0; | ||||
5887 | } else { | ||||
5888 | aEvent->mClickCount = 0; | ||||
5889 | } | ||||
5890 | mouseDownInfo.mLastMouseDownContent = nullptr; | ||||
5891 | mouseDownInfo.mLastMouseDownInputControlType = Nothing(); | ||||
5892 | } | ||||
5893 | |||||
5894 | return NS_OK; | ||||
5895 | } | ||||
5896 | |||||
5897 | // static | ||||
5898 | bool EventStateManager::EventCausesClickEvents( | ||||
5899 | const WidgetMouseEvent& aMouseEvent) { | ||||
5900 | if (NS_WARN_IF(aMouseEvent.mMessage != eMouseUp)NS_warn_if_impl(aMouseEvent.mMessage != eMouseUp, "aMouseEvent.mMessage != eMouseUp" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5900)) { | ||||
5901 | return false; | ||||
5902 | } | ||||
5903 | // If the mouseup event is synthesized event, we don't need to dispatch | ||||
5904 | // click events. | ||||
5905 | if (!aMouseEvent.IsReal()) { | ||||
5906 | return false; | ||||
5907 | } | ||||
5908 | // If mouse is still over same element, clickcount will be > 1. | ||||
5909 | // If it has moved it will be zero, so no click. | ||||
5910 | if (!aMouseEvent.mClickCount || !aMouseEvent.mClickTarget) { | ||||
5911 | return false; | ||||
5912 | } | ||||
5913 | // If click event was explicitly prevented, we shouldn't dispatch it. | ||||
5914 | if (aMouseEvent.mClickEventPrevented) { | ||||
5915 | return false; | ||||
5916 | } | ||||
5917 | // Check that the window isn't disabled before firing a click | ||||
5918 | // (see bug 366544). | ||||
5919 | return !(aMouseEvent.mWidget && !aMouseEvent.mWidget->IsEnabled()); | ||||
5920 | } | ||||
5921 | |||||
5922 | nsresult EventStateManager::InitAndDispatchClickEvent( | ||||
5923 | WidgetMouseEvent* aMouseUpEvent, nsEventStatus* aStatus, | ||||
5924 | EventMessage aMessage, PresShell* aPresShell, nsIContent* aMouseUpContent, | ||||
5925 | AutoWeakFrame aCurrentTarget, bool aNoContentDispatch, | ||||
5926 | nsIContent* aOverrideClickTarget) { | ||||
5927 | MOZ_ASSERT(aMouseUpEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMouseUpEvent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMouseUpEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMouseUpEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5927); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMouseUpEvent" ")"); do { *((volatile int*)__null) = 5927; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
5928 | MOZ_ASSERT(EventCausesClickEvents(*aMouseUpEvent))do { static_assert( mozilla::detail::AssertionConditionType< decltype(EventCausesClickEvents(*aMouseUpEvent))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(EventCausesClickEvents(*aMouseUpEvent)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("EventCausesClickEvents(*aMouseUpEvent)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5928); AnnotateMozCrashReason("MOZ_ASSERT" "(" "EventCausesClickEvents(*aMouseUpEvent)" ")"); do { *((volatile int*)__null) = 5928; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
5929 | MOZ_ASSERT(aMouseUpContent || aCurrentTarget || aOverrideClickTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMouseUpContent || aCurrentTarget || aOverrideClickTarget )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aMouseUpContent || aCurrentTarget || aOverrideClickTarget ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aMouseUpContent || aCurrentTarget || aOverrideClickTarget", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5929); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMouseUpContent || aCurrentTarget || aOverrideClickTarget" ")"); do { *((volatile int*)__null) = 5929; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
5930 | |||||
5931 | Maybe<WidgetPointerEvent> pointerEvent; | ||||
5932 | Maybe<WidgetMouseEvent> mouseEvent; | ||||
5933 | if (IsPointerEventMessage(aMessage)) { | ||||
5934 | pointerEvent.emplace(aMouseUpEvent->IsTrusted(), aMessage, | ||||
5935 | aMouseUpEvent->mWidget); | ||||
5936 | } else { | ||||
5937 | mouseEvent.emplace(aMouseUpEvent->IsTrusted(), aMessage, | ||||
5938 | aMouseUpEvent->mWidget, WidgetMouseEvent::eReal); | ||||
5939 | } | ||||
5940 | |||||
5941 | WidgetMouseEvent& mouseOrPointerEvent = | ||||
5942 | pointerEvent.isSome() ? pointerEvent.ref() : mouseEvent.ref(); | ||||
5943 | |||||
5944 | mouseOrPointerEvent.mRefPoint = aMouseUpEvent->mRefPoint; | ||||
5945 | mouseOrPointerEvent.mClickCount = aMouseUpEvent->mClickCount; | ||||
5946 | mouseOrPointerEvent.mModifiers = aMouseUpEvent->mModifiers; | ||||
5947 | mouseOrPointerEvent.mButtons = aMouseUpEvent->mButtons; | ||||
5948 | mouseOrPointerEvent.mTimeStamp = aMouseUpEvent->mTimeStamp; | ||||
5949 | mouseOrPointerEvent.mFlags.mOnlyChromeDispatch = aNoContentDispatch; | ||||
5950 | mouseOrPointerEvent.mFlags.mNoContentDispatch = aNoContentDispatch; | ||||
5951 | mouseOrPointerEvent.mButton = aMouseUpEvent->mButton; | ||||
5952 | mouseOrPointerEvent.pointerId = aMouseUpEvent->pointerId; | ||||
5953 | mouseOrPointerEvent.mInputSource = aMouseUpEvent->mInputSource; | ||||
5954 | nsIContent* target = aMouseUpContent; | ||||
5955 | nsIFrame* targetFrame = aCurrentTarget; | ||||
5956 | if (aOverrideClickTarget) { | ||||
5957 | target = aOverrideClickTarget; | ||||
5958 | targetFrame = aOverrideClickTarget->GetPrimaryFrame(); | ||||
5959 | } | ||||
5960 | |||||
5961 | if (!target->IsInComposedDoc()) { | ||||
5962 | return NS_OK; | ||||
5963 | } | ||||
5964 | |||||
5965 | // Use local event status for each click event dispatching since it'll be | ||||
5966 | // cleared by EventStateManager::PreHandleEvent(). Therefore, dispatching | ||||
5967 | // an event means that previous event status will be ignored. | ||||
5968 | nsEventStatus status = nsEventStatus_eIgnore; | ||||
5969 | nsresult rv = aPresShell->HandleEventWithTarget( | ||||
5970 | &mouseOrPointerEvent, targetFrame, MOZ_KnownLive(target)(target), &status); | ||||
5971 | |||||
5972 | // Copy mMultipleActionsPrevented flag from a click event to the mouseup | ||||
5973 | // event only when it's set to true. It may be set to true if an editor has | ||||
5974 | // already handled it. This is important to avoid two or more default | ||||
5975 | // actions handled here. | ||||
5976 | aMouseUpEvent->mFlags.mMultipleActionsPrevented |= | ||||
5977 | mouseOrPointerEvent.mFlags.mMultipleActionsPrevented; | ||||
5978 | // If current status is nsEventStatus_eConsumeNoDefault, we don't need to | ||||
5979 | // overwrite it. | ||||
5980 | if (*aStatus == nsEventStatus_eConsumeNoDefault) { | ||||
5981 | return rv; | ||||
5982 | } | ||||
5983 | // If new status is nsEventStatus_eConsumeNoDefault or | ||||
5984 | // nsEventStatus_eConsumeDoDefault, use it. | ||||
5985 | if (status == nsEventStatus_eConsumeNoDefault || | ||||
5986 | status == nsEventStatus_eConsumeDoDefault) { | ||||
5987 | *aStatus = status; | ||||
5988 | return rv; | ||||
5989 | } | ||||
5990 | // Otherwise, keep the original status. | ||||
5991 | return rv; | ||||
5992 | } | ||||
5993 | |||||
5994 | nsresult EventStateManager::PostHandleMouseUp( | ||||
5995 | WidgetMouseEvent* aMouseUpEvent, nsEventStatus* aStatus, | ||||
5996 | nsIContent* aOverrideClickTarget) { | ||||
5997 | MOZ_ASSERT(aMouseUpEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMouseUpEvent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMouseUpEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMouseUpEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5997); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMouseUpEvent" ")"); do { *((volatile int*)__null) = 5997; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
5998 | MOZ_ASSERT(EventCausesClickEvents(*aMouseUpEvent))do { static_assert( mozilla::detail::AssertionConditionType< decltype(EventCausesClickEvents(*aMouseUpEvent))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(EventCausesClickEvents(*aMouseUpEvent)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("EventCausesClickEvents(*aMouseUpEvent)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5998); AnnotateMozCrashReason("MOZ_ASSERT" "(" "EventCausesClickEvents(*aMouseUpEvent)" ")"); do { *((volatile int*)__null) = 5998; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
5999 | MOZ_ASSERT(aStatus)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStatus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStatus))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStatus", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 5999); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStatus" ")" ); do { *((volatile int*)__null) = 5999; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6000 | |||||
6001 | RefPtr<PresShell> presShell = mPresContext->GetPresShell(); | ||||
6002 | if (!presShell) { | ||||
6003 | return NS_OK; | ||||
6004 | } | ||||
6005 | |||||
6006 | nsCOMPtr<nsIContent> clickTarget = | ||||
6007 | nsIContent::FromEventTargetOrNull(aMouseUpEvent->mClickTarget); | ||||
6008 | NS_ENSURE_STATE(clickTarget)do { if ((__builtin_expect(!!(!(clickTarget)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "clickTarget" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6008); return NS_ERROR_UNEXPECTED; } } while (false); | ||||
6009 | |||||
6010 | // Fire click events if the event target is still available. | ||||
6011 | // Note that do not include the eMouseUp event's status since we ignore it | ||||
6012 | // for compatibility with the other browsers. | ||||
6013 | nsEventStatus status = nsEventStatus_eIgnore; | ||||
6014 | nsresult rv = DispatchClickEvents(presShell, aMouseUpEvent, &status, | ||||
6015 | clickTarget, aOverrideClickTarget); | ||||
6016 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6016)) { | ||||
6017 | return rv; | ||||
6018 | } | ||||
6019 | |||||
6020 | // Do not do anything if preceding click events are consumed. | ||||
6021 | // Note that Chromium dispatches "paste" event and actually pates clipboard | ||||
6022 | // text into focused editor even if the preceding click events are consumed. | ||||
6023 | // However, this is different from our traditional behavior and does not | ||||
6024 | // conform to DOM events. If we need to keep compatibility with Chromium, | ||||
6025 | // we should change it later. | ||||
6026 | if (status == nsEventStatus_eConsumeNoDefault) { | ||||
6027 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
6028 | return NS_OK; | ||||
6029 | } | ||||
6030 | |||||
6031 | // Handle middle click paste if it's enabled and the mouse button is middle. | ||||
6032 | if (aMouseUpEvent->mButton != MouseButton::eMiddle || | ||||
6033 | !WidgetMouseEvent::IsMiddleClickPasteEnabled()) { | ||||
6034 | return NS_OK; | ||||
6035 | } | ||||
6036 | DebugOnly<nsresult> rvIgnored = | ||||
6037 | HandleMiddleClickPaste(presShell, aMouseUpEvent, &status, nullptr); | ||||
6038 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rvIgnored )), 1))))) { NS_DebugBreak(NS_DEBUG_WARNING, "Failed to paste for a middle click" , "NS_SUCCEEDED(rvIgnored)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6039); } } while (false) | ||||
6039 | "Failed to paste for a middle click")do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rvIgnored )), 1))))) { NS_DebugBreak(NS_DEBUG_WARNING, "Failed to paste for a middle click" , "NS_SUCCEEDED(rvIgnored)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6039); } } while (false); | ||||
6040 | |||||
6041 | // If new status is nsEventStatus_eConsumeNoDefault or | ||||
6042 | // nsEventStatus_eConsumeDoDefault, use it. | ||||
6043 | if (*aStatus != nsEventStatus_eConsumeNoDefault && | ||||
6044 | (status == nsEventStatus_eConsumeNoDefault || | ||||
6045 | status == nsEventStatus_eConsumeDoDefault)) { | ||||
6046 | *aStatus = status; | ||||
6047 | } | ||||
6048 | |||||
6049 | // Don't return error even if middle mouse paste fails since we haven't | ||||
6050 | // handled it here. | ||||
6051 | return NS_OK; | ||||
6052 | } | ||||
6053 | |||||
6054 | nsresult EventStateManager::DispatchClickEvents( | ||||
6055 | PresShell* aPresShell, WidgetMouseEvent* aMouseUpEvent, | ||||
6056 | nsEventStatus* aStatus, nsIContent* aClickTarget, | ||||
6057 | nsIContent* aOverrideClickTarget) { | ||||
6058 | MOZ_ASSERT(aPresShell)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPresShell)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aPresShell))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPresShell", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6058); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPresShell" ")"); do { *((volatile int*)__null) = 6058; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6059 | MOZ_ASSERT(aMouseUpEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMouseUpEvent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMouseUpEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMouseUpEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6059); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMouseUpEvent" ")"); do { *((volatile int*)__null) = 6059; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6060 | MOZ_ASSERT(EventCausesClickEvents(*aMouseUpEvent))do { static_assert( mozilla::detail::AssertionConditionType< decltype(EventCausesClickEvents(*aMouseUpEvent))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(EventCausesClickEvents(*aMouseUpEvent)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("EventCausesClickEvents(*aMouseUpEvent)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6060); AnnotateMozCrashReason("MOZ_ASSERT" "(" "EventCausesClickEvents(*aMouseUpEvent)" ")"); do { *((volatile int*)__null) = 6060; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6061 | MOZ_ASSERT(aStatus)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStatus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStatus))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStatus", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6061); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStatus" ")" ); do { *((volatile int*)__null) = 6061; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6062 | MOZ_ASSERT(aClickTarget || aOverrideClickTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aClickTarget || aOverrideClickTarget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aClickTarget || aOverrideClickTarget ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aClickTarget || aOverrideClickTarget", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6062); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aClickTarget || aOverrideClickTarget" ")"); do { *((volatile int*)__null) = 6062; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6063 | |||||
6064 | bool notDispatchToContents = | ||||
6065 | (aMouseUpEvent->mButton == MouseButton::eMiddle || | ||||
6066 | aMouseUpEvent->mButton == MouseButton::eSecondary); | ||||
6067 | |||||
6068 | bool fireAuxClick = notDispatchToContents; | ||||
6069 | |||||
6070 | AutoWeakFrame currentTarget = aClickTarget->GetPrimaryFrame(); | ||||
6071 | nsresult rv = InitAndDispatchClickEvent( | ||||
6072 | aMouseUpEvent, aStatus, ePointerClick, aPresShell, aClickTarget, | ||||
6073 | currentTarget, notDispatchToContents, aOverrideClickTarget); | ||||
6074 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6074)) { | ||||
6075 | return rv; | ||||
6076 | } | ||||
6077 | |||||
6078 | // Fire auxclick event if necessary. | ||||
6079 | if (fireAuxClick && *aStatus != nsEventStatus_eConsumeNoDefault && | ||||
6080 | aClickTarget && aClickTarget->IsInComposedDoc()) { | ||||
6081 | rv = InitAndDispatchClickEvent(aMouseUpEvent, aStatus, ePointerAuxClick, | ||||
6082 | aPresShell, aClickTarget, currentTarget, | ||||
6083 | false, aOverrideClickTarget); | ||||
6084 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_WARNING, "Failed to dispatch ePointerAuxClick" , "NS_SUCCEEDED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6085); } } while (false) | ||||
6085 | "Failed to dispatch ePointerAuxClick")do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_WARNING, "Failed to dispatch ePointerAuxClick" , "NS_SUCCEEDED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6085); } } while (false); | ||||
6086 | } | ||||
6087 | |||||
6088 | // Fire double click event if click count is 2. | ||||
6089 | if (aMouseUpEvent->mClickCount == 2 && !fireAuxClick && aClickTarget && | ||||
6090 | aClickTarget->IsInComposedDoc()) { | ||||
6091 | rv = InitAndDispatchClickEvent(aMouseUpEvent, aStatus, eMouseDoubleClick, | ||||
6092 | aPresShell, aClickTarget, currentTarget, | ||||
6093 | notDispatchToContents, aOverrideClickTarget); | ||||
6094 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6094)) { | ||||
6095 | return rv; | ||||
6096 | } | ||||
6097 | } | ||||
6098 | |||||
6099 | return rv; | ||||
6100 | } | ||||
6101 | |||||
6102 | nsresult EventStateManager::HandleMiddleClickPaste( | ||||
6103 | PresShell* aPresShell, WidgetMouseEvent* aMouseEvent, | ||||
6104 | nsEventStatus* aStatus, EditorBase* aEditorBase) { | ||||
6105 | MOZ_ASSERT(aPresShell)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPresShell)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aPresShell))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPresShell", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6105); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPresShell" ")"); do { *((volatile int*)__null) = 6105; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6106 | MOZ_ASSERT(aMouseEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMouseEvent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMouseEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMouseEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6106); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMouseEvent" ")"); do { *((volatile int*)__null) = 6106; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6107 | MOZ_ASSERT((aMouseEvent->mMessage == ePointerAuxClick &&do { static_assert( mozilla::detail::AssertionConditionType< decltype((aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents (*aMouseEvent))>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!((aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents(*aMouseEvent)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("(aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents(*aMouseEvent)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6109); AnnotateMozCrashReason("MOZ_ASSERT" "(" "(aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents(*aMouseEvent)" ")"); do { *((volatile int*)__null) = 6109; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
6108 | aMouseEvent->mButton == MouseButton::eMiddle) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype((aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents (*aMouseEvent))>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!((aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents(*aMouseEvent)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("(aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents(*aMouseEvent)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6109); AnnotateMozCrashReason("MOZ_ASSERT" "(" "(aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents(*aMouseEvent)" ")"); do { *((volatile int*)__null) = 6109; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
6109 | EventCausesClickEvents(*aMouseEvent))do { static_assert( mozilla::detail::AssertionConditionType< decltype((aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents (*aMouseEvent))>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!((aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents(*aMouseEvent)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("(aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents(*aMouseEvent)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6109); AnnotateMozCrashReason("MOZ_ASSERT" "(" "(aMouseEvent->mMessage == ePointerAuxClick && aMouseEvent->mButton == MouseButton::eMiddle) || EventCausesClickEvents(*aMouseEvent)" ")"); do { *((volatile int*)__null) = 6109; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6110 | MOZ_ASSERT(aStatus)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStatus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStatus))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStatus", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6110); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStatus" ")" ); do { *((volatile int*)__null) = 6110; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6111 | MOZ_ASSERT(*aStatus != nsEventStatus_eConsumeNoDefault)do { static_assert( mozilla::detail::AssertionConditionType< decltype(*aStatus != nsEventStatus_eConsumeNoDefault)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(*aStatus != nsEventStatus_eConsumeNoDefault))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("*aStatus != nsEventStatus_eConsumeNoDefault" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6111); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*aStatus != nsEventStatus_eConsumeNoDefault" ")"); do { *((volatile int*)__null) = 6111; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6112 | |||||
6113 | // Even if we're called twice or more for a mouse operation, we should | ||||
6114 | // handle only once. Although mMultipleActionsPrevented may be set to | ||||
6115 | // true by different event handler in the future, we can use it for now. | ||||
6116 | if (aMouseEvent->mFlags.mMultipleActionsPrevented) { | ||||
6117 | return NS_OK; | ||||
6118 | } | ||||
6119 | aMouseEvent->mFlags.mMultipleActionsPrevented = true; | ||||
6120 | |||||
6121 | RefPtr<Selection> selection; | ||||
6122 | if (aEditorBase) { | ||||
6123 | selection = aEditorBase->GetSelection(); | ||||
6124 | if (NS_WARN_IF(!selection)NS_warn_if_impl(!selection, "!selection", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6124)) { | ||||
6125 | return NS_ERROR_FAILURE; | ||||
6126 | } | ||||
6127 | } else { | ||||
6128 | Document* document = aPresShell->GetDocument(); | ||||
6129 | if (NS_WARN_IF(!document)NS_warn_if_impl(!document, "!document", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6129)) { | ||||
6130 | return NS_ERROR_FAILURE; | ||||
6131 | } | ||||
6132 | selection = nsCopySupport::GetSelectionForCopy(document); | ||||
6133 | if (NS_WARN_IF(!selection)NS_warn_if_impl(!selection, "!selection", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6133)) { | ||||
6134 | return NS_ERROR_FAILURE; | ||||
6135 | } | ||||
6136 | |||||
6137 | const nsRange* range = selection->GetRangeAt(0); | ||||
6138 | if (range) { | ||||
6139 | nsINode* target = range->GetStartContainer(); | ||||
6140 | if (target && target->OwnerDoc()->IsInChromeDocShell()) { | ||||
6141 | // In Chrome document, limit middle-click pasting to only the editor | ||||
6142 | // because it looks odd if pasting works in the focused editor when you | ||||
6143 | // middle-click toolbar or something which are far from the editor. | ||||
6144 | // However, as DevTools especially Web Console module assumes that paste | ||||
6145 | // event will be fired when middle-click even on not editor, don't limit | ||||
6146 | // it. | ||||
6147 | return NS_OK; | ||||
6148 | } | ||||
6149 | } | ||||
6150 | } | ||||
6151 | |||||
6152 | // Don't modify selection here because we've already set caret to the point | ||||
6153 | // at "mousedown" event. | ||||
6154 | |||||
6155 | nsIClipboard::ClipboardType clipboardType = nsIClipboard::kGlobalClipboard; | ||||
6156 | nsCOMPtr<nsIClipboard> clipboardService = | ||||
6157 | do_GetService("@mozilla.org/widget/clipboard;1"); | ||||
6158 | if (clipboardService && clipboardService->IsClipboardTypeSupported( | ||||
6159 | nsIClipboard::kSelectionClipboard)) { | ||||
6160 | clipboardType = nsIClipboard::kSelectionClipboard; | ||||
6161 | } | ||||
6162 | |||||
6163 | // Fire ePaste event by ourselves since we need to dispatch "paste" event | ||||
6164 | // even if the middle click event was consumed for compatibility with | ||||
6165 | // Chromium. | ||||
6166 | if (!nsCopySupport::FireClipboardEvent(ePaste, Some(clipboardType), | ||||
6167 | aPresShell, selection)) { | ||||
6168 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
6169 | return NS_OK; | ||||
6170 | } | ||||
6171 | |||||
6172 | // Although we've fired "paste" event, there is no editor to accept the | ||||
6173 | // clipboard content. | ||||
6174 | if (!aEditorBase) { | ||||
6175 | return NS_OK; | ||||
6176 | } | ||||
6177 | |||||
6178 | // Check if the editor is still the good target to paste. | ||||
6179 | if (aEditorBase->Destroyed() || aEditorBase->IsReadonly()) { | ||||
6180 | // XXX Should we consume the event when the editor is readonly and/or | ||||
6181 | // disabled? | ||||
6182 | return NS_OK; | ||||
6183 | } | ||||
6184 | |||||
6185 | // The selection may have been modified during reflow. Therefore, we | ||||
6186 | // should adjust event target to pass IsAcceptableInputEvent(). | ||||
6187 | const nsRange* range = selection->GetRangeAt(0); | ||||
6188 | if (!range) { | ||||
6189 | return NS_OK; | ||||
6190 | } | ||||
6191 | WidgetMouseEvent mouseEvent(*aMouseEvent); | ||||
6192 | mouseEvent.mOriginalTarget = range->GetStartContainer(); | ||||
6193 | if (NS_WARN_IF(!mouseEvent.mOriginalTarget)NS_warn_if_impl(!mouseEvent.mOriginalTarget, "!mouseEvent.mOriginalTarget" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6193) || | ||||
6194 | !aEditorBase->IsAcceptableInputEvent(&mouseEvent)) { | ||||
6195 | return NS_OK; | ||||
6196 | } | ||||
6197 | |||||
6198 | // If Control key is pressed, we should paste clipboard content as | ||||
6199 | // quotation. Otherwise, paste it as is. | ||||
6200 | if (aMouseEvent->IsControl()) { | ||||
6201 | DebugOnly<nsresult> rv = aEditorBase->PasteAsQuotationAsAction( | ||||
6202 | clipboardType, EditorBase::DispatchPasteEvent::No); | ||||
6203 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Failed to paste as quotation")do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_WARNING, "Failed to paste as quotation" , "NS_SUCCEEDED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6203); } } while (false); | ||||
6204 | } else { | ||||
6205 | DebugOnly<nsresult> rv = aEditorBase->PasteAsAction( | ||||
6206 | clipboardType, EditorBase::DispatchPasteEvent::No); | ||||
6207 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Failed to paste")do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_WARNING, "Failed to paste", "NS_SUCCEEDED(rv)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6207); } } while (false); | ||||
6208 | } | ||||
6209 | *aStatus = nsEventStatus_eConsumeNoDefault; | ||||
6210 | |||||
6211 | return NS_OK; | ||||
6212 | } | ||||
6213 | |||||
6214 | void EventStateManager::ConsumeInteractionData( | ||||
6215 | Record<nsString, dom::InteractionData>& aInteractions) { | ||||
6216 | OnTypingInteractionEnded(); | ||||
6217 | |||||
6218 | aInteractions.Entries().Clear(); | ||||
6219 | auto newEntry = aInteractions.Entries().AppendElement(); | ||||
6220 | newEntry->mKey = u"Typing"_ns; | ||||
6221 | newEntry->mValue = gTypingInteraction; | ||||
6222 | gTypingInteraction = {}; | ||||
6223 | } | ||||
6224 | |||||
6225 | nsIFrame* EventStateManager::GetEventTarget() { | ||||
6226 | PresShell* presShell; | ||||
6227 | if (mCurrentTarget || !mPresContext || | ||||
6228 | !(presShell = mPresContext->GetPresShell())) { | ||||
6229 | return mCurrentTarget; | ||||
6230 | } | ||||
6231 | |||||
6232 | if (mCurrentTargetContent) { | ||||
6233 | mCurrentTarget = mPresContext->GetPrimaryFrameFor(mCurrentTargetContent); | ||||
6234 | if (mCurrentTarget) { | ||||
6235 | return mCurrentTarget; | ||||
6236 | } | ||||
6237 | } | ||||
6238 | |||||
6239 | nsIFrame* frame = presShell->GetCurrentEventFrame(); | ||||
6240 | return (mCurrentTarget = frame); | ||||
6241 | } | ||||
6242 | |||||
6243 | already_AddRefed<nsIContent> EventStateManager::GetEventTargetContent( | ||||
6244 | WidgetEvent* aEvent) { | ||||
6245 | if (aEvent && (aEvent->mMessage == eFocus || aEvent->mMessage == eBlur)) { | ||||
6246 | nsCOMPtr<nsIContent> content = GetFocusedElement(); | ||||
6247 | return content.forget(); | ||||
6248 | } | ||||
6249 | |||||
6250 | if (mCurrentTargetContent) { | ||||
6251 | nsCOMPtr<nsIContent> content = mCurrentTargetContent; | ||||
6252 | return content.forget(); | ||||
6253 | } | ||||
6254 | |||||
6255 | nsCOMPtr<nsIContent> content; | ||||
6256 | if (PresShell* presShell = mPresContext->GetPresShell()) { | ||||
6257 | content = presShell->GetEventTargetContent(aEvent); | ||||
6258 | } | ||||
6259 | |||||
6260 | // Some events here may set mCurrentTarget but not set the corresponding | ||||
6261 | // event target in the PresShell. | ||||
6262 | if (!content && mCurrentTarget) { | ||||
6263 | mCurrentTarget->GetContentForEvent(aEvent, getter_AddRefs(content)); | ||||
6264 | } | ||||
6265 | |||||
6266 | return content.forget(); | ||||
6267 | } | ||||
6268 | |||||
6269 | static Element* GetLabelTarget(nsIContent* aPossibleLabel) { | ||||
6270 | mozilla::dom::HTMLLabelElement* label = | ||||
6271 | mozilla::dom::HTMLLabelElement::FromNode(aPossibleLabel); | ||||
6272 | if (!label) return nullptr; | ||||
6273 | |||||
6274 | return label->GetLabeledElement(); | ||||
6275 | } | ||||
6276 | |||||
6277 | /* static */ | ||||
6278 | inline void EventStateManager::DoStateChange(Element* aElement, | ||||
6279 | ElementState aState, | ||||
6280 | bool aAddState) { | ||||
6281 | if (aAddState) { | ||||
6282 | aElement->AddStates(aState); | ||||
6283 | } else { | ||||
6284 | aElement->RemoveStates(aState); | ||||
6285 | } | ||||
6286 | } | ||||
6287 | |||||
6288 | /* static */ | ||||
6289 | inline void EventStateManager::DoStateChange(nsIContent* aContent, | ||||
6290 | ElementState aState, | ||||
6291 | bool aStateAdded) { | ||||
6292 | if (aContent->IsElement()) { | ||||
6293 | DoStateChange(aContent->AsElement(), aState, aStateAdded); | ||||
6294 | } | ||||
6295 | } | ||||
6296 | |||||
6297 | /* static */ | ||||
6298 | void EventStateManager::UpdateAncestorState(nsIContent* aStartNode, | ||||
6299 | nsIContent* aStopBefore, | ||||
6300 | ElementState aState, | ||||
6301 | bool aAddState) { | ||||
6302 | for (; aStartNode && aStartNode != aStopBefore; | ||||
6303 | aStartNode = aStartNode->GetFlattenedTreeParent()) { | ||||
6304 | // We might be starting with a non-element (e.g. a text node) and | ||||
6305 | // if someone is doing something weird might be ending with a | ||||
6306 | // non-element too (e.g. a document fragment) | ||||
6307 | if (!aStartNode->IsElement()) { | ||||
6308 | continue; | ||||
6309 | } | ||||
6310 | Element* element = aStartNode->AsElement(); | ||||
6311 | DoStateChange(element, aState, aAddState); | ||||
6312 | Element* labelTarget = GetLabelTarget(element); | ||||
6313 | if (labelTarget) { | ||||
6314 | DoStateChange(labelTarget, aState, aAddState); | ||||
6315 | } | ||||
6316 | } | ||||
6317 | |||||
6318 | if (aAddState) { | ||||
6319 | // We might be in a situation where a node was in hover both | ||||
6320 | // because it was hovered and because the label for it was | ||||
6321 | // hovered, and while we stopped hovering the node the label is | ||||
6322 | // still hovered. Or we might have had two nested labels for the | ||||
6323 | // same node, and while one is no longer hovered the other still | ||||
6324 | // is. In that situation, the label that's still hovered will be | ||||
6325 | // aStopBefore or some ancestor of it, and the call we just made | ||||
6326 | // to UpdateAncestorState with aAddState = false would have | ||||
6327 | // removed the hover state from the node. But the node should | ||||
6328 | // still be in hover state. To handle this situation we need to | ||||
6329 | // keep walking up the tree and any time we find a label mark its | ||||
6330 | // corresponding node as still in our state. | ||||
6331 | for (; aStartNode; aStartNode = aStartNode->GetFlattenedTreeParent()) { | ||||
6332 | if (!aStartNode->IsElement()) { | ||||
6333 | continue; | ||||
6334 | } | ||||
6335 | |||||
6336 | Element* labelTarget = GetLabelTarget(aStartNode->AsElement()); | ||||
6337 | if (labelTarget && !labelTarget->State().HasState(aState)) { | ||||
6338 | DoStateChange(labelTarget, aState, true); | ||||
6339 | } | ||||
6340 | } | ||||
6341 | } | ||||
6342 | } | ||||
6343 | |||||
6344 | // static | ||||
6345 | bool CanContentHaveActiveState(nsIContent& aContent) { | ||||
6346 | // Editable content can never become active since their default actions | ||||
6347 | // are disabled. Watch out for editable content in native anonymous | ||||
6348 | // subtrees though, as they belong to text controls. | ||||
6349 | return !aContent.IsEditable() || aContent.IsInNativeAnonymousSubtree(); | ||||
6350 | } | ||||
6351 | |||||
6352 | bool EventStateManager::SetContentState(nsIContent* aContent, | ||||
6353 | ElementState aState) { | ||||
6354 | MOZ_ASSERT(ManagesState(aState), "Unexpected state")do { static_assert( mozilla::detail::AssertionConditionType< decltype(ManagesState(aState))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(ManagesState(aState)))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("ManagesState(aState)" " (" "Unexpected state" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6354); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ManagesState(aState)" ") (" "Unexpected state" ")"); do { *((volatile int*)__null) = 6354; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | ||||
6355 | |||||
6356 | nsCOMPtr<nsIContent> notifyContent1; | ||||
6357 | nsCOMPtr<nsIContent> notifyContent2; | ||||
6358 | bool updateAncestors; | ||||
6359 | |||||
6360 | if (aState == ElementState::HOVER || aState == ElementState::ACTIVE) { | ||||
6361 | // Hover and active are hierarchical | ||||
6362 | updateAncestors = true; | ||||
6363 | |||||
6364 | // check to see that this state is allowed by style. Check dragover too? | ||||
6365 | // XXX Is this even what we want? | ||||
6366 | if (mCurrentTarget && | ||||
6367 | mCurrentTarget->StyleUI()->UserInput() == StyleUserInput::None) { | ||||
6368 | return false; | ||||
6369 | } | ||||
6370 | |||||
6371 | if (aState == ElementState::ACTIVE) { | ||||
6372 | if (aContent && !CanContentHaveActiveState(*aContent)) { | ||||
6373 | aContent = nullptr; | ||||
6374 | } | ||||
6375 | if (aContent != mActiveContent) { | ||||
6376 | notifyContent1 = aContent; | ||||
6377 | notifyContent2 = mActiveContent; | ||||
6378 | mActiveContent = aContent; | ||||
6379 | } | ||||
6380 | } else { | ||||
6381 | NS_ASSERTION(aState == ElementState::HOVER, "How did that happen?")do { if (!(aState == ElementState::HOVER)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "How did that happen?", "aState == ElementState::HOVER", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6381); MOZ_PretendNoReturn(); } } while (0); | ||||
6382 | nsIContent* newHover; | ||||
6383 | |||||
6384 | if (mPresContext->IsDynamic()) { | ||||
6385 | newHover = aContent; | ||||
6386 | } else { | ||||
6387 | NS_ASSERTION(!aContent || aContent->GetComposedDoc() ==do { if (!(!aContent || aContent->GetComposedDoc() == mPresContext ->PresShell()->GetDocument())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected document", "!aContent || aContent->GetComposedDoc() == mPresContext->PresShell()->GetDocument()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6389); MOZ_PretendNoReturn(); } } while (0) | ||||
6388 | mPresContext->PresShell()->GetDocument(),do { if (!(!aContent || aContent->GetComposedDoc() == mPresContext ->PresShell()->GetDocument())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected document", "!aContent || aContent->GetComposedDoc() == mPresContext->PresShell()->GetDocument()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6389); MOZ_PretendNoReturn(); } } while (0) | ||||
6389 | "Unexpected document")do { if (!(!aContent || aContent->GetComposedDoc() == mPresContext ->PresShell()->GetDocument())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected document", "!aContent || aContent->GetComposedDoc() == mPresContext->PresShell()->GetDocument()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6389); MOZ_PretendNoReturn(); } } while (0); | ||||
6390 | nsIFrame* frame = aContent ? aContent->GetPrimaryFrame() : nullptr; | ||||
6391 | if (frame && nsLayoutUtils::IsViewportScrollbarFrame(frame)) { | ||||
6392 | // The scrollbars of viewport should not ignore the hover state. | ||||
6393 | // Because they are *not* the content of the web page. | ||||
6394 | newHover = aContent; | ||||
6395 | } else { | ||||
6396 | // All contents of the web page should ignore the hover state. | ||||
6397 | newHover = nullptr; | ||||
6398 | } | ||||
6399 | } | ||||
6400 | |||||
6401 | if (newHover != mHoverContent) { | ||||
6402 | notifyContent1 = newHover; | ||||
6403 | notifyContent2 = mHoverContent; | ||||
6404 | mHoverContent = newHover; | ||||
6405 | } | ||||
6406 | } | ||||
6407 | } else { | ||||
6408 | updateAncestors = false; | ||||
6409 | if (aState == ElementState::DRAGOVER) { | ||||
6410 | if (aContent != sDragOverContent) { | ||||
6411 | notifyContent1 = aContent; | ||||
6412 | notifyContent2 = sDragOverContent; | ||||
6413 | sDragOverContent = aContent; | ||||
6414 | } | ||||
6415 | } else if (aState == ElementState::URLTARGET) { | ||||
6416 | if (aContent != mURLTargetContent) { | ||||
6417 | notifyContent1 = aContent; | ||||
6418 | notifyContent2 = mURLTargetContent; | ||||
6419 | mURLTargetContent = aContent; | ||||
6420 | } | ||||
6421 | } | ||||
6422 | } | ||||
6423 | |||||
6424 | // We need to keep track of which of notifyContent1 and notifyContent2 is | ||||
6425 | // getting the state set and which is getting it unset. If both are | ||||
6426 | // non-null, then notifyContent1 is having the state set and notifyContent2 | ||||
6427 | // is having it unset. But if one of them is null, we need to keep track of | ||||
6428 | // the right thing for notifyContent1 explicitly. | ||||
6429 | bool content1StateSet = true; | ||||
6430 | if (!notifyContent1) { | ||||
6431 | // This is ok because FindCommonAncestor wouldn't find anything | ||||
6432 | // anyway if notifyContent1 is null. | ||||
6433 | notifyContent1 = notifyContent2; | ||||
6434 | notifyContent2 = nullptr; | ||||
6435 | content1StateSet = false; | ||||
6436 | } | ||||
6437 | |||||
6438 | if (notifyContent1 && mPresContext) { | ||||
6439 | EnsureDocument(mPresContext); | ||||
6440 | if (mDocument) { | ||||
6441 | nsAutoScriptBlocker scriptBlocker; | ||||
6442 | |||||
6443 | if (updateAncestors) { | ||||
6444 | nsCOMPtr<nsIContent> commonAncestor = | ||||
6445 | FindCommonAncestor(notifyContent1, notifyContent2); | ||||
6446 | if (notifyContent2) { | ||||
6447 | // It's very important to first notify the state removal and | ||||
6448 | // then the state addition, because due to labels it's | ||||
6449 | // possible that we're removing state from some element but | ||||
6450 | // then adding it again (say because mHoverContent changed | ||||
6451 | // from a control to its label). | ||||
6452 | UpdateAncestorState(notifyContent2, commonAncestor, aState, false); | ||||
6453 | } | ||||
6454 | UpdateAncestorState(notifyContent1, commonAncestor, aState, | ||||
6455 | content1StateSet); | ||||
6456 | } else { | ||||
6457 | if (notifyContent2) { | ||||
6458 | DoStateChange(notifyContent2, aState, false); | ||||
6459 | } | ||||
6460 | DoStateChange(notifyContent1, aState, content1StateSet); | ||||
6461 | } | ||||
6462 | } | ||||
6463 | } | ||||
6464 | |||||
6465 | return true; | ||||
6466 | } | ||||
6467 | |||||
6468 | void EventStateManager::RemoveNodeFromChainIfNeeded(ElementState aState, | ||||
6469 | nsIContent* aContentRemoved, | ||||
6470 | bool aNotify) { | ||||
6471 | MOZ_ASSERT(aState == ElementState::HOVER || aState == ElementState::ACTIVE)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aState == ElementState::HOVER || aState == ElementState ::ACTIVE)>::isValid, "invalid assertion condition"); if (( __builtin_expect(!!(!(!!(aState == ElementState::HOVER || aState == ElementState::ACTIVE))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aState == ElementState::HOVER || aState == ElementState::ACTIVE" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6471); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aState == ElementState::HOVER || aState == ElementState::ACTIVE" ")"); do { *((volatile int*)__null) = 6471; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6472 | if (!aContentRemoved->IsElement() || | ||||
6473 | !aContentRemoved->AsElement()->State().HasState(aState)) { | ||||
6474 | return; | ||||
6475 | } | ||||
6476 | |||||
6477 | nsCOMPtr<nsIContent>& leaf = | ||||
6478 | aState == ElementState::HOVER ? mHoverContent : mActiveContent; | ||||
6479 | |||||
6480 | MOZ_ASSERT(leaf)do { static_assert( mozilla::detail::AssertionConditionType< decltype(leaf)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(leaf))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("leaf", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6480); AnnotateMozCrashReason("MOZ_ASSERT" "(" "leaf" ")"); do { *((volatile int*)__null) = 6480; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6481 | // These two NS_ASSERTIONS below can fail for Shadow DOM sometimes, and it's | ||||
6482 | // not clear how to best handle it, see | ||||
6483 | // https://github.com/whatwg/html/issues/4795 and bug 1551621. | ||||
6484 | NS_ASSERTION(do { if (!(nsContentUtils::ContentIsFlattenedTreeDescendantOf (leaf, aContentRemoved))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Flat tree and active / hover chain got out of sync", "nsContentUtils::ContentIsFlattenedTreeDescendantOf(leaf, aContentRemoved)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6486); MOZ_PretendNoReturn(); } } while (0) | ||||
6485 | nsContentUtils::ContentIsFlattenedTreeDescendantOf(leaf, aContentRemoved),do { if (!(nsContentUtils::ContentIsFlattenedTreeDescendantOf (leaf, aContentRemoved))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Flat tree and active / hover chain got out of sync", "nsContentUtils::ContentIsFlattenedTreeDescendantOf(leaf, aContentRemoved)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6486); MOZ_PretendNoReturn(); } } while (0) | ||||
6486 | "Flat tree and active / hover chain got out of sync")do { if (!(nsContentUtils::ContentIsFlattenedTreeDescendantOf (leaf, aContentRemoved))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Flat tree and active / hover chain got out of sync", "nsContentUtils::ContentIsFlattenedTreeDescendantOf(leaf, aContentRemoved)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6486); MOZ_PretendNoReturn(); } } while (0); | ||||
6487 | |||||
6488 | nsIContent* newLeaf = aContentRemoved->GetFlattenedTreeParent(); | ||||
6489 | MOZ_ASSERT(!newLeaf || newLeaf->IsElement())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!newLeaf || newLeaf->IsElement())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!newLeaf || newLeaf->IsElement ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!newLeaf || newLeaf->IsElement()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6489); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!newLeaf || newLeaf->IsElement()" ")"); do { *((volatile int*)__null) = 6489; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6490 | NS_ASSERTION(!newLeaf || newLeaf->AsElement()->State().HasState(aState),do { if (!(!newLeaf || newLeaf->AsElement()->State().HasState (aState))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "State got out of sync because of shadow DOM" , "!newLeaf || newLeaf->AsElement()->State().HasState(aState)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6491); MOZ_PretendNoReturn(); } } while (0) | ||||
6491 | "State got out of sync because of shadow DOM")do { if (!(!newLeaf || newLeaf->AsElement()->State().HasState (aState))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "State got out of sync because of shadow DOM" , "!newLeaf || newLeaf->AsElement()->State().HasState(aState)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6491); MOZ_PretendNoReturn(); } } while (0); | ||||
6492 | if (aNotify) { | ||||
6493 | SetContentState(newLeaf, aState); | ||||
6494 | } else { | ||||
6495 | // We don't update the removed content's state here, since removing NAC | ||||
6496 | // happens from layout and we don't really want to notify at that point or | ||||
6497 | // what not. | ||||
6498 | // | ||||
6499 | // Also, NAC is not observable and NAC being removed will go away soon. | ||||
6500 | leaf = newLeaf; | ||||
6501 | } | ||||
6502 | MOZ_ASSERT(leaf == newLeaf || (aState == ElementState::ACTIVE && !leaf &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(leaf == newLeaf || (aState == ElementState::ACTIVE && !leaf && !CanContentHaveActiveState(*newLeaf)))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(leaf == newLeaf || (aState == ElementState::ACTIVE && !leaf && !CanContentHaveActiveState(*newLeaf))))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("leaf == newLeaf || (aState == ElementState::ACTIVE && !leaf && !CanContentHaveActiveState(*newLeaf))" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6503); AnnotateMozCrashReason("MOZ_ASSERT" "(" "leaf == newLeaf || (aState == ElementState::ACTIVE && !leaf && !CanContentHaveActiveState(*newLeaf))" ")"); do { *((volatile int*)__null) = 6503; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) | ||||
6503 | !CanContentHaveActiveState(*newLeaf)))do { static_assert( mozilla::detail::AssertionConditionType< decltype(leaf == newLeaf || (aState == ElementState::ACTIVE && !leaf && !CanContentHaveActiveState(*newLeaf)))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(leaf == newLeaf || (aState == ElementState::ACTIVE && !leaf && !CanContentHaveActiveState(*newLeaf))))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("leaf == newLeaf || (aState == ElementState::ACTIVE && !leaf && !CanContentHaveActiveState(*newLeaf))" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6503); AnnotateMozCrashReason("MOZ_ASSERT" "(" "leaf == newLeaf || (aState == ElementState::ACTIVE && !leaf && !CanContentHaveActiveState(*newLeaf))" ")"); do { *((volatile int*)__null) = 6503; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6504 | } | ||||
6505 | |||||
6506 | void EventStateManager::NativeAnonymousContentRemoved(nsIContent* aContent) { | ||||
6507 | MOZ_ASSERT(aContent->IsRootOfNativeAnonymousSubtree())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent->IsRootOfNativeAnonymousSubtree())>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aContent->IsRootOfNativeAnonymousSubtree()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("aContent->IsRootOfNativeAnonymousSubtree()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6507); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent->IsRootOfNativeAnonymousSubtree()" ")"); do { *((volatile int*)__null) = 6507; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6508 | RemoveNodeFromChainIfNeeded(ElementState::HOVER, aContent, false); | ||||
6509 | RemoveNodeFromChainIfNeeded(ElementState::ACTIVE, aContent, false); | ||||
6510 | |||||
6511 | nsCOMPtr<nsIContent>& lastLeftMouseDownContent = | ||||
6512 | mLastLeftMouseDownInfo.mLastMouseDownContent; | ||||
6513 | if (lastLeftMouseDownContent && | ||||
6514 | nsContentUtils::ContentIsFlattenedTreeDescendantOf( | ||||
6515 | lastLeftMouseDownContent, aContent)) { | ||||
6516 | lastLeftMouseDownContent = aContent->GetFlattenedTreeParent(); | ||||
6517 | } | ||||
6518 | |||||
6519 | nsCOMPtr<nsIContent>& lastMiddleMouseDownContent = | ||||
6520 | mLastMiddleMouseDownInfo.mLastMouseDownContent; | ||||
6521 | if (lastMiddleMouseDownContent && | ||||
6522 | nsContentUtils::ContentIsFlattenedTreeDescendantOf( | ||||
6523 | lastMiddleMouseDownContent, aContent)) { | ||||
6524 | lastMiddleMouseDownContent = aContent->GetFlattenedTreeParent(); | ||||
6525 | } | ||||
6526 | |||||
6527 | nsCOMPtr<nsIContent>& lastRightMouseDownContent = | ||||
6528 | mLastRightMouseDownInfo.mLastMouseDownContent; | ||||
6529 | if (lastRightMouseDownContent && | ||||
6530 | nsContentUtils::ContentIsFlattenedTreeDescendantOf( | ||||
6531 | lastRightMouseDownContent, aContent)) { | ||||
6532 | lastRightMouseDownContent = aContent->GetFlattenedTreeParent(); | ||||
6533 | } | ||||
6534 | } | ||||
6535 | |||||
6536 | void EventStateManager::ContentRemoved(Document* aDocument, | ||||
6537 | nsIContent* aContent) { | ||||
6538 | /* | ||||
6539 | * Anchor and area elements when focused or hovered might make the UI to show | ||||
6540 | * the current link. We want to make sure that the UI gets informed when they | ||||
6541 | * are actually removed from the DOM. | ||||
6542 | */ | ||||
6543 | if (aContent->IsAnyOfHTMLElements(nsGkAtoms::a, nsGkAtoms::area) && | ||||
6544 | (aContent->AsElement()->State().HasAtLeastOneOfStates( | ||||
6545 | ElementState::FOCUS | ElementState::HOVER))) { | ||||
6546 | Element* element = aContent->AsElement(); | ||||
6547 | element->LeaveLink(element->GetPresContext(Element::eForComposedDoc)); | ||||
6548 | } | ||||
6549 | |||||
6550 | if (aContent->IsElement()) { | ||||
6551 | if (RefPtr<nsPresContext> presContext = mPresContext) { | ||||
6552 | IMEStateManager::OnRemoveContent(*presContext, | ||||
6553 | MOZ_KnownLive(*aContent->AsElement())(*aContent->AsElement())); | ||||
6554 | } | ||||
6555 | WheelTransaction::OnRemoveElement(aContent); | ||||
6556 | } | ||||
6557 | |||||
6558 | // inform the focus manager that the content is being removed. If this | ||||
6559 | // content is focused, the focus will be removed without firing events. | ||||
6560 | if (RefPtr<nsFocusManager> fm = nsFocusManager::GetFocusManager()) { | ||||
6561 | fm->ContentRemoved(aDocument, aContent); | ||||
6562 | } | ||||
6563 | |||||
6564 | RemoveNodeFromChainIfNeeded(ElementState::HOVER, aContent, true); | ||||
6565 | RemoveNodeFromChainIfNeeded(ElementState::ACTIVE, aContent, true); | ||||
6566 | |||||
6567 | if (sDragOverContent && | ||||
6568 | sDragOverContent->OwnerDoc() == aContent->OwnerDoc() && | ||||
6569 | nsContentUtils::ContentIsFlattenedTreeDescendantOf(sDragOverContent, | ||||
6570 | aContent)) { | ||||
6571 | sDragOverContent = nullptr; | ||||
6572 | } | ||||
6573 | |||||
6574 | PointerEventHandler::ReleaseIfCaptureByDescendant(aContent); | ||||
6575 | |||||
6576 | if (mMouseEnterLeaveHelper) { | ||||
6577 | const bool hadMouseOutTarget = | ||||
6578 | mMouseEnterLeaveHelper->GetOutEventTarget() != nullptr; | ||||
6579 | mMouseEnterLeaveHelper->ContentRemoved(*aContent); | ||||
6580 | // If we lose the mouseout target, we need to dispatch mouseover on an | ||||
6581 | // ancestor. For ensuring the chance to do it before next user input, we | ||||
6582 | // need a synthetic mouse move. | ||||
6583 | if (hadMouseOutTarget && !mMouseEnterLeaveHelper->GetOutEventTarget()) { | ||||
6584 | if (PresShell* presShell = | ||||
6585 | mPresContext ? mPresContext->GetPresShell() : nullptr) { | ||||
6586 | presShell->SynthesizeMouseMove(false); | ||||
6587 | } | ||||
6588 | } | ||||
6589 | } | ||||
6590 | for (const auto& entry : mPointersEnterLeaveHelper) { | ||||
6591 | if (entry.GetData()) { | ||||
6592 | entry.GetData()->ContentRemoved(*aContent); | ||||
6593 | } | ||||
6594 | } | ||||
6595 | } | ||||
6596 | |||||
6597 | void EventStateManager::TextControlRootWillBeRemoved( | ||||
6598 | TextControlElement& aTextControlElement) { | ||||
6599 | if (!mGestureDownInTextControl || !mGestureDownFrameOwner || | ||||
6600 | !mGestureDownFrameOwner->IsInNativeAnonymousSubtree()) { | ||||
6601 | return; | ||||
6602 | } | ||||
6603 | // If we track gesture to start drag in aTextControlElement, we should keep | ||||
6604 | // tracking it with aTextContrlElement itself for now because this may be | ||||
6605 | // caused by reframing aTextControlElement which may not be intended by the | ||||
6606 | // user. | ||||
6607 | if (&aTextControlElement == | ||||
6608 | mGestureDownFrameOwner | ||||
6609 | ->GetClosestNativeAnonymousSubtreeRootParentOrHost()) { | ||||
6610 | mGestureDownFrameOwner = &aTextControlElement; | ||||
6611 | } | ||||
6612 | } | ||||
6613 | |||||
6614 | void EventStateManager::TextControlRootAdded( | ||||
6615 | Element& aAnonymousDivElement, TextControlElement& aTextControlElement) { | ||||
6616 | if (!mGestureDownInTextControl || | ||||
6617 | mGestureDownFrameOwner != &aTextControlElement) { | ||||
6618 | return; | ||||
6619 | } | ||||
6620 | // If we track gesture to start drag in aTextControlElement, but the frame | ||||
6621 | // owner is the text control element itself, the anonymous nodes in it are | ||||
6622 | // recreated by a reframe. If so, we should keep tracking it with the | ||||
6623 | // recreated native anonymous node. | ||||
6624 | mGestureDownFrameOwner = | ||||
6625 | aAnonymousDivElement.GetFirstChild() | ||||
6626 | ? aAnonymousDivElement.GetFirstChild() | ||||
6627 | : static_cast<nsIContent*>(&aAnonymousDivElement); | ||||
6628 | } | ||||
6629 | |||||
6630 | bool EventStateManager::EventStatusOK(WidgetGUIEvent* aEvent) { | ||||
6631 | return !(aEvent->mMessage == eMouseDown && | ||||
6632 | aEvent->AsMouseEvent()->mButton == MouseButton::ePrimary && | ||||
6633 | !sNormalLMouseEventInProcess); | ||||
6634 | } | ||||
6635 | |||||
6636 | //------------------------------------------- | ||||
6637 | // Access Key Registration | ||||
6638 | //------------------------------------------- | ||||
6639 | void EventStateManager::RegisterAccessKey(Element* aElement, uint32_t aKey) { | ||||
6640 | if (aElement && !mAccessKeys.Contains(aElement)) { | ||||
6641 | mAccessKeys.AppendObject(aElement); | ||||
6642 | } | ||||
6643 | } | ||||
6644 | |||||
6645 | void EventStateManager::UnregisterAccessKey(Element* aElement, uint32_t aKey) { | ||||
6646 | if (aElement) { | ||||
6647 | mAccessKeys.RemoveObject(aElement); | ||||
6648 | } | ||||
6649 | } | ||||
6650 | |||||
6651 | uint32_t EventStateManager::GetRegisteredAccessKey(Element* aElement) { | ||||
6652 | MOZ_ASSERT(aElement)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aElement)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aElement))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aElement", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6652); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aElement" ")" ); do { *((volatile int*)__null) = 6652; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6653 | |||||
6654 | if (!mAccessKeys.Contains(aElement)) { | ||||
6655 | return 0; | ||||
6656 | } | ||||
6657 | |||||
6658 | nsAutoString accessKey; | ||||
6659 | aElement->GetAttr(nsGkAtoms::accesskey, accessKey); | ||||
6660 | return accessKey.First(); | ||||
6661 | } | ||||
6662 | |||||
6663 | void EventStateManager::EnsureDocument(nsPresContext* aPresContext) { | ||||
6664 | if (!mDocument) mDocument = aPresContext->Document(); | ||||
6665 | } | ||||
6666 | |||||
6667 | void EventStateManager::FlushLayout(nsPresContext* aPresContext) { | ||||
6668 | MOZ_ASSERT(aPresContext, "nullptr ptr")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPresContext" " (" "nullptr ptr" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6668); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPresContext" ") (" "nullptr ptr" ")"); do { *((volatile int*)__null) = 6668 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); | ||||
6669 | if (RefPtr<PresShell> presShell = aPresContext->GetPresShell()) { | ||||
6670 | presShell->FlushPendingNotifications(FlushType::InterruptibleLayout); | ||||
6671 | } | ||||
6672 | } | ||||
6673 | |||||
6674 | Element* EventStateManager::GetFocusedElement() { | ||||
6675 | nsFocusManager* fm = nsFocusManager::GetFocusManager(); | ||||
6676 | EnsureDocument(mPresContext); | ||||
6677 | if (!fm || !mDocument) { | ||||
6678 | return nullptr; | ||||
6679 | } | ||||
6680 | |||||
6681 | nsCOMPtr<nsPIDOMWindowOuter> focusedWindow; | ||||
6682 | return nsFocusManager::GetFocusedDescendant( | ||||
6683 | mDocument->GetWindow(), nsFocusManager::eOnlyCurrentWindow, | ||||
6684 | getter_AddRefs(focusedWindow)); | ||||
6685 | } | ||||
6686 | |||||
6687 | //------------------------------------------------------- | ||||
6688 | // Return true if the docshell is visible | ||||
6689 | |||||
6690 | bool EventStateManager::IsShellVisible(nsIDocShell* aShell) { | ||||
6691 | NS_ASSERTION(aShell, "docshell is null")do { if (!(aShell)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "docshell is null" , "aShell", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6691); MOZ_PretendNoReturn(); } } while (0); | ||||
6692 | |||||
6693 | nsCOMPtr<nsIBaseWindow> basewin = do_QueryInterface(aShell); | ||||
6694 | if (!basewin) return true; | ||||
6695 | |||||
6696 | bool isVisible = true; | ||||
6697 | basewin->GetVisibility(&isVisible); | ||||
6698 | |||||
6699 | // We should be doing some additional checks here so that | ||||
6700 | // we don't tab into hidden tabs of tabbrowser. -bryner | ||||
6701 | |||||
6702 | return isVisible; | ||||
6703 | } | ||||
6704 | |||||
6705 | nsresult EventStateManager::DoContentCommandEvent( | ||||
6706 | WidgetContentCommandEvent* aEvent) { | ||||
6707 | EnsureDocument(mPresContext); | ||||
6708 | NS_ENSURE_TRUE(mDocument, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(mDocument)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mDocument" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6708); return NS_ERROR_FAILURE; } } while (false); | ||||
6709 | nsCOMPtr<nsPIDOMWindowOuter> window(mDocument->GetWindow()); | ||||
6710 | NS_ENSURE_TRUE(window, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(window)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "window" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6710); return NS_ERROR_FAILURE; } } while (false); | ||||
6711 | |||||
6712 | nsCOMPtr<nsPIWindowRoot> root = window->GetTopWindowRoot(); | ||||
6713 | NS_ENSURE_TRUE(root, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(root)), 0))) { NS_DebugBreak( NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "root" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6713); return NS_ERROR_FAILURE; } } while (false); | ||||
6714 | const char* cmd; | ||||
6715 | switch (aEvent->mMessage) { | ||||
6716 | case eContentCommandCut: | ||||
6717 | cmd = "cmd_cut"; | ||||
6718 | break; | ||||
6719 | case eContentCommandCopy: | ||||
6720 | cmd = "cmd_copy"; | ||||
6721 | break; | ||||
6722 | case eContentCommandPaste: | ||||
6723 | cmd = "cmd_paste"; | ||||
6724 | break; | ||||
6725 | case eContentCommandDelete: | ||||
6726 | cmd = "cmd_delete"; | ||||
6727 | break; | ||||
6728 | case eContentCommandUndo: | ||||
6729 | cmd = "cmd_undo"; | ||||
6730 | break; | ||||
6731 | case eContentCommandRedo: | ||||
6732 | cmd = "cmd_redo"; | ||||
6733 | break; | ||||
6734 | case eContentCommandPasteTransferable: | ||||
6735 | cmd = "cmd_pasteTransferable"; | ||||
6736 | break; | ||||
6737 | case eContentCommandLookUpDictionary: | ||||
6738 | cmd = "cmd_lookUpDictionary"; | ||||
6739 | break; | ||||
6740 | default: | ||||
6741 | return NS_ERROR_NOT_IMPLEMENTED; | ||||
6742 | } | ||||
6743 | // If user tries to do something, user must try to do it in visible window. | ||||
6744 | // So, let's retrieve controller of visible window. | ||||
6745 | nsCOMPtr<nsIController> controller; | ||||
6746 | nsresult rv = | ||||
6747 | root->GetControllerForCommand(cmd, true, getter_AddRefs(controller)); | ||||
6748 | NS_ENSURE_SUCCESS(rv, rv)do { nsresult __rv = rv; if (((bool)(__builtin_expect(!!(NS_FAILED_impl (__rv)), 0)))) { const char* name = mozilla::GetStaticErrorName (__rv); mozilla::SmprintfPointer msg = mozilla::Smprintf( "NS_ENSURE_SUCCESS(%s, %s) failed with " "result 0x%" "X" "%s%s%s", "rv", "rv", static_cast<uint32_t >(__rv), name ? " (" : "", name ? name : "", name ? ")" : "" ); NS_DebugBreak(NS_DEBUG_WARNING, msg.get(), nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6748); return rv; } } while (false); | ||||
6749 | if (!controller) { | ||||
6750 | // When GetControllerForCommand succeeded but there is no controller, the | ||||
6751 | // command isn't supported. | ||||
6752 | aEvent->mIsEnabled = false; | ||||
6753 | } else { | ||||
6754 | bool canDoIt; | ||||
6755 | rv = controller->IsCommandEnabled(cmd, &canDoIt); | ||||
6756 | NS_ENSURE_SUCCESS(rv, rv)do { nsresult __rv = rv; if (((bool)(__builtin_expect(!!(NS_FAILED_impl (__rv)), 0)))) { const char* name = mozilla::GetStaticErrorName (__rv); mozilla::SmprintfPointer msg = mozilla::Smprintf( "NS_ENSURE_SUCCESS(%s, %s) failed with " "result 0x%" "X" "%s%s%s", "rv", "rv", static_cast<uint32_t >(__rv), name ? " (" : "", name ? name : "", name ? ")" : "" ); NS_DebugBreak(NS_DEBUG_WARNING, msg.get(), nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6756); return rv; } } while (false); | ||||
6757 | aEvent->mIsEnabled = canDoIt; | ||||
6758 | if (canDoIt && !aEvent->mOnlyEnabledCheck) { | ||||
6759 | switch (aEvent->mMessage) { | ||||
6760 | case eContentCommandPasteTransferable: { | ||||
6761 | BrowserParent* remote = BrowserParent::GetFocused(); | ||||
6762 | if (remote) { | ||||
6763 | IPCTransferable ipcTransferable; | ||||
6764 | nsContentUtils::TransferableToIPCTransferable( | ||||
6765 | aEvent->mTransferable, &ipcTransferable, false, | ||||
6766 | remote->Manager()); | ||||
6767 | remote->SendPasteTransferable(std::move(ipcTransferable)); | ||||
6768 | rv = NS_OK; | ||||
6769 | } else { | ||||
6770 | nsCOMPtr<nsICommandController> commandController = | ||||
6771 | do_QueryInterface(controller); | ||||
6772 | NS_ENSURE_STATE(commandController)do { if ((__builtin_expect(!!(!(commandController)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "commandController" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6772); return NS_ERROR_UNEXPECTED; } } while (false); | ||||
6773 | |||||
6774 | RefPtr<nsCommandParams> params = new nsCommandParams(); | ||||
6775 | rv = params->SetISupports("transferable", aEvent->mTransferable); | ||||
6776 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6776)) { | ||||
6777 | return rv; | ||||
6778 | } | ||||
6779 | rv = commandController->DoCommandWithParams(cmd, params); | ||||
6780 | } | ||||
6781 | break; | ||||
6782 | } | ||||
6783 | |||||
6784 | case eContentCommandLookUpDictionary: { | ||||
6785 | nsCOMPtr<nsICommandController> commandController = | ||||
6786 | do_QueryInterface(controller); | ||||
6787 | if (NS_WARN_IF(!commandController)NS_warn_if_impl(!commandController, "!commandController", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6787)) { | ||||
6788 | return NS_ERROR_FAILURE; | ||||
6789 | } | ||||
6790 | |||||
6791 | RefPtr<nsCommandParams> params = new nsCommandParams(); | ||||
6792 | rv = params->SetInt("x", aEvent->mRefPoint.x); | ||||
6793 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6793)) { | ||||
6794 | return rv; | ||||
6795 | } | ||||
6796 | |||||
6797 | rv = params->SetInt("y", aEvent->mRefPoint.y); | ||||
6798 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6798)) { | ||||
6799 | return rv; | ||||
6800 | } | ||||
6801 | |||||
6802 | rv = commandController->DoCommandWithParams(cmd, params); | ||||
6803 | break; | ||||
6804 | } | ||||
6805 | |||||
6806 | default: | ||||
6807 | rv = controller->DoCommand(cmd); | ||||
6808 | break; | ||||
6809 | } | ||||
6810 | NS_ENSURE_SUCCESS(rv, rv)do { nsresult __rv = rv; if (((bool)(__builtin_expect(!!(NS_FAILED_impl (__rv)), 0)))) { const char* name = mozilla::GetStaticErrorName (__rv); mozilla::SmprintfPointer msg = mozilla::Smprintf( "NS_ENSURE_SUCCESS(%s, %s) failed with " "result 0x%" "X" "%s%s%s", "rv", "rv", static_cast<uint32_t >(__rv), name ? " (" : "", name ? name : "", name ? ")" : "" ); NS_DebugBreak(NS_DEBUG_WARNING, msg.get(), nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6810); return rv; } } while (false); | ||||
6811 | } | ||||
6812 | } | ||||
6813 | aEvent->mSucceeded = true; | ||||
6814 | return NS_OK; | ||||
6815 | } | ||||
6816 | |||||
6817 | nsresult EventStateManager::DoContentCommandInsertTextEvent( | ||||
6818 | WidgetContentCommandEvent* aEvent) { | ||||
6819 | MOZ_ASSERT(aEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6819); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent" ")" ); do { *((volatile int*)__null) = 6819; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6820 | MOZ_ASSERT(aEvent->mMessage == eContentCommandInsertText)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage == eContentCommandInsertText)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aEvent->mMessage == eContentCommandInsertText))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mMessage == eContentCommandInsertText" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6820); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage == eContentCommandInsertText" ")"); do { *((volatile int*)__null) = 6820; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6821 | MOZ_DIAGNOSTIC_ASSERT(aEvent->mString.isSome())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mString.isSome())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->mString.isSome()) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mString.isSome()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6821); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aEvent->mString.isSome()" ")"); do { *((volatile int*)__null) = 6821; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6822 | MOZ_DIAGNOSTIC_ASSERT(!aEvent->mString.ref().IsEmpty())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aEvent->mString.ref().IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aEvent->mString.ref().IsEmpty ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aEvent->mString.ref().IsEmpty()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6822); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!aEvent->mString.ref().IsEmpty()" ")"); do { *((volatile int*)__null) = 6822; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6823 | |||||
6824 | aEvent->mIsEnabled = false; | ||||
6825 | aEvent->mSucceeded = false; | ||||
6826 | |||||
6827 | NS_ENSURE_TRUE(mPresContext, NS_ERROR_NOT_AVAILABLE)do { if ((__builtin_expect(!!(!(mPresContext)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mPresContext" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6827); return NS_ERROR_NOT_AVAILABLE; } } while (false); | ||||
6828 | |||||
6829 | if (XRE_IsParentProcess()) { | ||||
6830 | // Handle it in focused content process if there is. | ||||
6831 | if (BrowserParent* remote = BrowserParent::GetFocused()) { | ||||
6832 | remote->SendInsertText(aEvent->mString.ref()); | ||||
6833 | aEvent->mIsEnabled = true; // XXX it can be a lie... | ||||
6834 | aEvent->mSucceeded = true; | ||||
6835 | return NS_OK; | ||||
6836 | } | ||||
6837 | } | ||||
6838 | |||||
6839 | // If there is no active editor in this process, we should treat the command | ||||
6840 | // is disabled. | ||||
6841 | RefPtr<EditorBase> activeEditor = | ||||
6842 | nsContentUtils::GetActiveEditor(mPresContext); | ||||
6843 | if (!activeEditor) { | ||||
6844 | aEvent->mSucceeded = true; | ||||
6845 | return NS_OK; | ||||
6846 | } | ||||
6847 | |||||
6848 | nsresult rv = activeEditor->InsertTextAsAction(aEvent->mString.ref()); | ||||
6849 | aEvent->mIsEnabled = rv != NS_SUCCESS_DOM_NO_OPERATION; | ||||
6850 | aEvent->mSucceeded = NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1))); | ||||
6851 | return NS_OK; | ||||
6852 | } | ||||
6853 | |||||
6854 | nsresult EventStateManager::DoContentCommandReplaceTextEvent( | ||||
6855 | WidgetContentCommandEvent* aEvent) { | ||||
6856 | MOZ_ASSERT(aEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6856); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent" ")" ); do { *((volatile int*)__null) = 6856; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6857 | MOZ_ASSERT(aEvent->mMessage == eContentCommandReplaceText)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mMessage == eContentCommandReplaceText)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aEvent->mMessage == eContentCommandReplaceText))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mMessage == eContentCommandReplaceText" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6857); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mMessage == eContentCommandReplaceText" ")"); do { *((volatile int*)__null) = 6857; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6858 | MOZ_DIAGNOSTIC_ASSERT(aEvent->mString.isSome())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mString.isSome())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEvent->mString.isSome()) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mString.isSome()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6858); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aEvent->mString.isSome()" ")"); do { *((volatile int*)__null) = 6858; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6859 | MOZ_DIAGNOSTIC_ASSERT(!aEvent->mString.ref().IsEmpty())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aEvent->mString.ref().IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aEvent->mString.ref().IsEmpty ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aEvent->mString.ref().IsEmpty()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6859); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!aEvent->mString.ref().IsEmpty()" ")"); do { *((volatile int*)__null) = 6859; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
6860 | |||||
6861 | aEvent->mIsEnabled = false; | ||||
6862 | aEvent->mSucceeded = false; | ||||
6863 | |||||
6864 | NS_ENSURE_TRUE(mPresContext, NS_ERROR_NOT_AVAILABLE)do { if ((__builtin_expect(!!(!(mPresContext)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mPresContext" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6864); return NS_ERROR_NOT_AVAILABLE; } } while (false); | ||||
6865 | |||||
6866 | if (XRE_IsParentProcess()) { | ||||
6867 | // Handle it in focused content process if there is. | ||||
6868 | if (BrowserParent* remote = BrowserParent::GetFocused()) { | ||||
6869 | Unused << remote->SendReplaceText( | ||||
6870 | aEvent->mSelection.mReplaceSrcString, aEvent->mString.ref(), | ||||
6871 | aEvent->mSelection.mOffset, aEvent->mSelection.mPreventSetSelection); | ||||
6872 | aEvent->mIsEnabled = true; // XXX it can be a lie... | ||||
6873 | aEvent->mSucceeded = true; | ||||
6874 | return NS_OK; | ||||
6875 | } | ||||
6876 | } | ||||
6877 | |||||
6878 | // If there is no active editor in this process, we should treat the command | ||||
6879 | // is disabled. | ||||
6880 | RefPtr<EditorBase> activeEditor = | ||||
6881 | nsContentUtils::GetActiveEditor(mPresContext); | ||||
6882 | if (NS_WARN_IF(!activeEditor)NS_warn_if_impl(!activeEditor, "!activeEditor", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6882)) { | ||||
6883 | aEvent->mSucceeded = true; | ||||
6884 | return NS_OK; | ||||
6885 | } | ||||
6886 | |||||
6887 | RefPtr<TextComposition> composition = | ||||
6888 | IMEStateManager::GetTextCompositionFor(mPresContext); | ||||
6889 | if (NS_WARN_IF(composition)NS_warn_if_impl(composition, "composition", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6889)) { | ||||
6890 | // We don't support replace text action during composition. | ||||
6891 | aEvent->mSucceeded = true; | ||||
6892 | return NS_OK; | ||||
6893 | } | ||||
6894 | |||||
6895 | ContentEventHandler handler(mPresContext); | ||||
6896 | RefPtr<nsRange> range = handler.GetRangeFromFlatTextOffset( | ||||
6897 | aEvent, aEvent->mSelection.mOffset, | ||||
6898 | aEvent->mSelection.mReplaceSrcString.Length()); | ||||
6899 | if (NS_WARN_IF(!range)NS_warn_if_impl(!range, "!range", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6899)) { | ||||
6900 | aEvent->mSucceeded = false; | ||||
6901 | return NS_OK; | ||||
6902 | } | ||||
6903 | |||||
6904 | // If original replacement text isn't matched with selection text, throws | ||||
6905 | // error. | ||||
6906 | nsAutoString targetStr; | ||||
6907 | nsresult rv = handler.GenerateFlatTextContent(range, targetStr); | ||||
6908 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6908)) { | ||||
6909 | aEvent->mSucceeded = false; | ||||
6910 | return NS_OK; | ||||
6911 | } | ||||
6912 | if (!aEvent->mSelection.mReplaceSrcString.Equals(targetStr)) { | ||||
6913 | aEvent->mSucceeded = false; | ||||
6914 | return NS_OK; | ||||
6915 | } | ||||
6916 | |||||
6917 | rv = activeEditor->ReplaceTextAsAction( | ||||
6918 | aEvent->mString.ref(), range, | ||||
6919 | TextEditor::AllowBeforeInputEventCancelable::Yes, | ||||
6920 | aEvent->mSelection.mPreventSetSelection | ||||
6921 | ? EditorBase::PreventSetSelection::Yes | ||||
6922 | : EditorBase::PreventSetSelection::No); | ||||
6923 | if (NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6923)) { | ||||
6924 | aEvent->mSucceeded = false; | ||||
6925 | return NS_OK; | ||||
6926 | } | ||||
6927 | |||||
6928 | aEvent->mIsEnabled = rv != NS_SUCCESS_DOM_NO_OPERATION; | ||||
6929 | aEvent->mSucceeded = true; | ||||
6930 | return NS_OK; | ||||
6931 | } | ||||
6932 | |||||
6933 | nsresult EventStateManager::DoContentCommandScrollEvent( | ||||
6934 | WidgetContentCommandEvent* aEvent) { | ||||
6935 | NS_ENSURE_TRUE(mPresContext, NS_ERROR_NOT_AVAILABLE)do { if ((__builtin_expect(!!(!(mPresContext)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mPresContext" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6935); return NS_ERROR_NOT_AVAILABLE; } } while (false); | ||||
6936 | PresShell* presShell = mPresContext->GetPresShell(); | ||||
6937 | NS_ENSURE_TRUE(presShell, NS_ERROR_NOT_AVAILABLE)do { if ((__builtin_expect(!!(!(presShell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "presShell" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6937); return NS_ERROR_NOT_AVAILABLE; } } while (false); | ||||
6938 | NS_ENSURE_TRUE(aEvent->mScroll.mAmount != 0, NS_ERROR_INVALID_ARG)do { if ((__builtin_expect(!!(!(aEvent->mScroll.mAmount != 0)), 0))) { NS_DebugBreak(NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aEvent->mScroll.mAmount != 0" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 6938); return NS_ERROR_INVALID_ARG; } } while (false); | ||||
6939 | |||||
6940 | ScrollUnit scrollUnit; | ||||
6941 | switch (aEvent->mScroll.mUnit) { | ||||
6942 | case WidgetContentCommandEvent::eCmdScrollUnit_Line: | ||||
6943 | scrollUnit = ScrollUnit::LINES; | ||||
6944 | break; | ||||
6945 | case WidgetContentCommandEvent::eCmdScrollUnit_Page: | ||||
6946 | scrollUnit = ScrollUnit::PAGES; | ||||
6947 | break; | ||||
6948 | case WidgetContentCommandEvent::eCmdScrollUnit_Whole: | ||||
6949 | scrollUnit = ScrollUnit::WHOLE; | ||||
6950 | break; | ||||
6951 | default: | ||||
6952 | return NS_ERROR_INVALID_ARG; | ||||
6953 | } | ||||
6954 | |||||
6955 | aEvent->mSucceeded = true; | ||||
6956 | |||||
6957 | ScrollContainerFrame* sf = | ||||
6958 | presShell->GetScrollContainerFrameToScroll(layers::EitherScrollDirection); | ||||
6959 | aEvent->mIsEnabled = | ||||
6960 | sf ? (aEvent->mScroll.mIsHorizontal ? WheelHandlingUtils::CanScrollOn( | ||||
6961 | sf, aEvent->mScroll.mAmount, 0) | ||||
6962 | : WheelHandlingUtils::CanScrollOn( | ||||
6963 | sf, 0, aEvent->mScroll.mAmount)) | ||||
6964 | : false; | ||||
6965 | |||||
6966 | if (!aEvent->mIsEnabled || aEvent->mOnlyEnabledCheck) { | ||||
6967 | return NS_OK; | ||||
6968 | } | ||||
6969 | |||||
6970 | nsIntPoint pt(0, 0); | ||||
6971 | if (aEvent->mScroll.mIsHorizontal) { | ||||
6972 | pt.x = aEvent->mScroll.mAmount; | ||||
6973 | } else { | ||||
6974 | pt.y = aEvent->mScroll.mAmount; | ||||
6975 | } | ||||
6976 | |||||
6977 | // The caller may want synchronous scrolling. | ||||
6978 | sf->ScrollBy(pt, scrollUnit, ScrollMode::Instant); | ||||
6979 | return NS_OK; | ||||
6980 | } | ||||
6981 | |||||
6982 | void EventStateManager::SetActiveManager(EventStateManager* aNewESM, | ||||
6983 | nsIContent* aContent) { | ||||
6984 | if (sActiveESM && aNewESM != sActiveESM) { | ||||
6985 | sActiveESM->SetContentState(nullptr, ElementState::ACTIVE); | ||||
6986 | } | ||||
6987 | sActiveESM = aNewESM; | ||||
6988 | if (sActiveESM && aContent) { | ||||
6989 | sActiveESM->SetContentState(aContent, ElementState::ACTIVE); | ||||
6990 | } | ||||
6991 | } | ||||
6992 | |||||
6993 | void EventStateManager::ClearGlobalActiveContent(EventStateManager* aClearer) { | ||||
6994 | if (aClearer) { | ||||
6995 | aClearer->SetContentState(nullptr, ElementState::ACTIVE); | ||||
6996 | if (sDragOverContent) { | ||||
6997 | aClearer->SetContentState(nullptr, ElementState::DRAGOVER); | ||||
6998 | } | ||||
6999 | } | ||||
7000 | if (sActiveESM && aClearer != sActiveESM) { | ||||
7001 | sActiveESM->SetContentState(nullptr, ElementState::ACTIVE); | ||||
7002 | } | ||||
7003 | sActiveESM = nullptr; | ||||
7004 | } | ||||
7005 | |||||
7006 | /******************************************************************/ | ||||
7007 | /* mozilla::EventStateManager::DeltaAccumulator */ | ||||
7008 | /******************************************************************/ | ||||
7009 | |||||
7010 | void EventStateManager::DeltaAccumulator::InitLineOrPageDelta( | ||||
7011 | nsIFrame* aTargetFrame, EventStateManager* aESM, WidgetWheelEvent* aEvent) { | ||||
7012 | MOZ_ASSERT(aESM)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aESM)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aESM))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("aESM", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 7012); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aESM" ")"); do { *((volatile int*)__null) = 7012; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
7013 | MOZ_ASSERT(aEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 7013); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent" ")" ); do { *((volatile int*)__null) = 7013; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
7014 | |||||
7015 | // Reset if the previous wheel event is too old. | ||||
7016 | if (!mLastTime.IsNull()) { | ||||
7017 | TimeDuration duration = TimeStamp::Now() - mLastTime; | ||||
7018 | if (duration.ToMilliseconds() > | ||||
7019 | StaticPrefs::mousewheel_transaction_timeout()) { | ||||
7020 | Reset(); | ||||
7021 | } | ||||
7022 | } | ||||
7023 | // If we have accumulated delta, we may need to reset it. | ||||
7024 | if (IsInTransaction()) { | ||||
7025 | // If wheel event type is changed, reset the values. | ||||
7026 | if (mHandlingDeltaMode != aEvent->mDeltaMode || | ||||
7027 | mIsNoLineOrPageDeltaDevice != aEvent->mIsNoLineOrPageDelta) { | ||||
7028 | Reset(); | ||||
7029 | } else { | ||||
7030 | // If the delta direction is changed, we should reset only the | ||||
7031 | // accumulated values. | ||||
7032 | if (mX && aEvent->mDeltaX && ((aEvent->mDeltaX > 0.0) != (mX > 0.0))) { | ||||
7033 | mX = mPendingScrollAmountX = 0.0; | ||||
7034 | } | ||||
7035 | if (mY && aEvent->mDeltaY && ((aEvent->mDeltaY > 0.0) != (mY > 0.0))) { | ||||
7036 | mY = mPendingScrollAmountY = 0.0; | ||||
7037 | } | ||||
7038 | } | ||||
7039 | } | ||||
7040 | |||||
7041 | mHandlingDeltaMode = aEvent->mDeltaMode; | ||||
7042 | mIsNoLineOrPageDeltaDevice = aEvent->mIsNoLineOrPageDelta; | ||||
7043 | |||||
7044 | { | ||||
7045 | ScrollContainerFrame* scrollTarget = aESM->ComputeScrollTarget( | ||||
7046 | aTargetFrame, aEvent, COMPUTE_DEFAULT_ACTION_TARGET); | ||||
7047 | nsPresContext* pc = scrollTarget ? scrollTarget->PresContext() | ||||
7048 | : aTargetFrame->PresContext(); | ||||
7049 | aEvent->mScrollAmount = aESM->GetScrollAmount(pc, aEvent, scrollTarget); | ||||
7050 | } | ||||
7051 | |||||
7052 | // If it's handling neither a device that does not provide line or page deltas | ||||
7053 | // nor delta values multiplied by prefs, we must not modify lineOrPageDelta | ||||
7054 | // values. | ||||
7055 | // TODO(emilio): Does this care about overridden scroll speed? | ||||
7056 | if (!mIsNoLineOrPageDeltaDevice && | ||||
7057 | !EventStateManager::WheelPrefs::GetInstance() | ||||
7058 | ->NeedToComputeLineOrPageDelta(aEvent)) { | ||||
7059 | // Set the delta values to mX and mY. They would be used when above block | ||||
7060 | // resets mX/mY/mPendingScrollAmountX/mPendingScrollAmountY if the direction | ||||
7061 | // is changed. | ||||
7062 | // NOTE: We shouldn't accumulate the delta values, it might could cause | ||||
7063 | // overflow even though it's not a realistic situation. | ||||
7064 | if (aEvent->mDeltaX) { | ||||
7065 | mX = aEvent->mDeltaX; | ||||
7066 | } | ||||
7067 | if (aEvent->mDeltaY) { | ||||
7068 | mY = aEvent->mDeltaY; | ||||
7069 | } | ||||
7070 | mLastTime = TimeStamp::Now(); | ||||
7071 | return; | ||||
7072 | } | ||||
7073 | |||||
7074 | mX += aEvent->mDeltaX; | ||||
7075 | mY += aEvent->mDeltaY; | ||||
7076 | |||||
7077 | if (mHandlingDeltaMode == WheelEvent_Binding::DOM_DELTA_PIXEL) { | ||||
7078 | // Records pixel delta values and init mLineOrPageDeltaX and | ||||
7079 | // mLineOrPageDeltaY for wheel events which are caused by pixel only | ||||
7080 | // devices. Ignore mouse wheel transaction for computing this. The | ||||
7081 | // lineOrPageDelta values will be used by dispatching legacy | ||||
7082 | // eMouseScrollEventClass (DOMMouseScroll) but not be used for scrolling | ||||
7083 | // of default action. The transaction should be used only for the default | ||||
7084 | // action. | ||||
7085 | auto scrollAmountInCSSPixels = | ||||
7086 | CSSIntSize::FromAppUnitsRounded(aEvent->mScrollAmount); | ||||
7087 | |||||
7088 | aEvent->mLineOrPageDeltaX = RoundDown(mX) / scrollAmountInCSSPixels.width; | ||||
7089 | aEvent->mLineOrPageDeltaY = RoundDown(mY) / scrollAmountInCSSPixels.height; | ||||
7090 | |||||
7091 | mX -= aEvent->mLineOrPageDeltaX * scrollAmountInCSSPixels.width; | ||||
7092 | mY -= aEvent->mLineOrPageDeltaY * scrollAmountInCSSPixels.height; | ||||
7093 | } else { | ||||
7094 | aEvent->mLineOrPageDeltaX = RoundDown(mX); | ||||
7095 | aEvent->mLineOrPageDeltaY = RoundDown(mY); | ||||
7096 | mX -= aEvent->mLineOrPageDeltaX; | ||||
7097 | mY -= aEvent->mLineOrPageDeltaY; | ||||
7098 | } | ||||
7099 | |||||
7100 | mLastTime = TimeStamp::Now(); | ||||
7101 | } | ||||
7102 | |||||
7103 | void EventStateManager::DeltaAccumulator::Reset() { | ||||
7104 | mX = mY = 0.0; | ||||
7105 | mPendingScrollAmountX = mPendingScrollAmountY = 0.0; | ||||
7106 | mHandlingDeltaMode = UINT32_MAX(4294967295U); | ||||
7107 | mIsNoLineOrPageDeltaDevice = false; | ||||
7108 | } | ||||
7109 | |||||
7110 | nsIntPoint | ||||
7111 | EventStateManager::DeltaAccumulator::ComputeScrollAmountForDefaultAction( | ||||
7112 | WidgetWheelEvent* aEvent, const nsIntSize& aScrollAmountInDevPixels) { | ||||
7113 | MOZ_ASSERT(aEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 7113); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent" ")" ); do { *((volatile int*)__null) = 7113; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); | ||||
7114 | |||||
7115 | DeltaValues acceleratedDelta = WheelTransaction::AccelerateWheelDelta(aEvent); | ||||
7116 | |||||
7117 | nsIntPoint result(0, 0); | ||||
7118 | if (aEvent->mDeltaMode == WheelEvent_Binding::DOM_DELTA_PIXEL) { | ||||
7119 | mPendingScrollAmountX += acceleratedDelta.deltaX; | ||||
7120 | mPendingScrollAmountY += acceleratedDelta.deltaY; | ||||
7121 | } else { | ||||
7122 | mPendingScrollAmountX += | ||||
7123 | aScrollAmountInDevPixels.width * acceleratedDelta.deltaX; | ||||
7124 | mPendingScrollAmountY += | ||||
7125 | aScrollAmountInDevPixels.height * acceleratedDelta.deltaY; | ||||
7126 | } | ||||
7127 | result.x = RoundDown(mPendingScrollAmountX); | ||||
7128 | result.y = RoundDown(mPendingScrollAmountY); | ||||
7129 | mPendingScrollAmountX -= result.x; | ||||
7130 | mPendingScrollAmountY -= result.y; | ||||
7131 | |||||
7132 | return result; | ||||
7133 | } | ||||
7134 | |||||
7135 | /******************************************************************/ | ||||
7136 | /* mozilla::EventStateManager::WheelPrefs */ | ||||
7137 | /******************************************************************/ | ||||
7138 | |||||
7139 | // static | ||||
7140 | EventStateManager::WheelPrefs* EventStateManager::WheelPrefs::GetInstance() { | ||||
7141 | if (!sInstance) { | ||||
7142 | sInstance = new WheelPrefs(); | ||||
7143 | } | ||||
7144 | return sInstance; | ||||
7145 | } | ||||
7146 | |||||
7147 | // static | ||||
7148 | void EventStateManager::WheelPrefs::Shutdown() { | ||||
7149 | delete sInstance; | ||||
7150 | sInstance = nullptr; | ||||
7151 | } | ||||
7152 | |||||
7153 | // static | ||||
7154 | void EventStateManager::WheelPrefs::OnPrefChanged(const char* aPrefName, | ||||
7155 | void* aClosure) { | ||||
7156 | // forget all prefs, it's not problem for performance. | ||||
7157 | sInstance->Reset(); | ||||
7158 | DeltaAccumulator::GetInstance()->Reset(); | ||||
7159 | } | ||||
7160 | |||||
7161 | EventStateManager::WheelPrefs::WheelPrefs() { | ||||
7162 | Reset(); | ||||
7163 | Preferences::RegisterPrefixCallback(OnPrefChanged, "mousewheel."); | ||||
7164 | } | ||||
7165 | |||||
7166 | EventStateManager::WheelPrefs::~WheelPrefs() { | ||||
7167 | Preferences::UnregisterPrefixCallback(OnPrefChanged, "mousewheel."); | ||||
7168 | } | ||||
7169 | |||||
7170 | void EventStateManager::WheelPrefs::Reset() { memset(mInit, 0, sizeof(mInit)); } | ||||
7171 | |||||
7172 | EventStateManager::WheelPrefs::Index EventStateManager::WheelPrefs::GetIndexFor( | ||||
7173 | const WidgetWheelEvent* aEvent) { | ||||
7174 | if (!aEvent) { | ||||
7175 | return INDEX_DEFAULT; | ||||
7176 | } | ||||
7177 | |||||
7178 | Modifiers modifiers = (aEvent->mModifiers & (MODIFIER_ALT | MODIFIER_CONTROL | | ||||
7179 | MODIFIER_META | MODIFIER_SHIFT)); | ||||
7180 | |||||
7181 | switch (modifiers) { | ||||
7182 | case MODIFIER_ALT: | ||||
7183 | return INDEX_ALT; | ||||
7184 | case MODIFIER_CONTROL: | ||||
7185 | return INDEX_CONTROL; | ||||
7186 | case MODIFIER_META: | ||||
7187 | return INDEX_META; | ||||
7188 | case MODIFIER_SHIFT: | ||||
7189 | return INDEX_SHIFT; | ||||
7190 | default: | ||||
7191 | // If two or more modifier keys are pressed, we should use default | ||||
7192 | // settings. | ||||
7193 | return INDEX_DEFAULT; | ||||
7194 | } | ||||
7195 | } | ||||
7196 | |||||
7197 | void EventStateManager::WheelPrefs::GetBasePrefName( | ||||
7198 | EventStateManager::WheelPrefs::Index aIndex, nsACString& aBasePrefName) { | ||||
7199 | aBasePrefName.AssignLiteral("mousewheel."); | ||||
7200 | switch (aIndex) { | ||||
7201 | case INDEX_ALT: | ||||
7202 | aBasePrefName.AppendLiteral("with_alt."); | ||||
7203 | break; | ||||
7204 | case INDEX_CONTROL: | ||||
7205 | aBasePrefName.AppendLiteral("with_control."); | ||||
7206 | break; | ||||
7207 | case INDEX_META: | ||||
7208 | aBasePrefName.AppendLiteral("with_meta."); | ||||
7209 | break; | ||||
7210 | case INDEX_SHIFT: | ||||
7211 | aBasePrefName.AppendLiteral("with_shift."); | ||||
7212 | break; | ||||
7213 | case INDEX_DEFAULT: | ||||
7214 | default: | ||||
7215 | aBasePrefName.AppendLiteral("default."); | ||||
7216 | break; | ||||
7217 | } | ||||
7218 | } | ||||
7219 | |||||
7220 | void EventStateManager::WheelPrefs::Init( | ||||
7221 | EventStateManager::WheelPrefs::Index aIndex) { | ||||
7222 | if (mInit[aIndex]) { | ||||
7223 | return; | ||||
7224 | } | ||||
7225 | mInit[aIndex] = true; | ||||
7226 | |||||
7227 | nsAutoCString basePrefName; | ||||
7228 | GetBasePrefName(aIndex, basePrefName); | ||||
7229 | |||||
7230 | nsAutoCString prefNameX(basePrefName); | ||||
7231 | prefNameX.AppendLiteral("delta_multiplier_x"); | ||||
7232 | mMultiplierX[aIndex] = | ||||
7233 | static_cast<double>(Preferences::GetInt(prefNameX.get(), 100)) / 100; | ||||
7234 | |||||
7235 | nsAutoCString prefNameY(basePrefName); | ||||
7236 | prefNameY.AppendLiteral("delta_multiplier_y"); | ||||
7237 | mMultiplierY[aIndex] = | ||||
7238 | static_cast<double>(Preferences::GetInt(prefNameY.get(), 100)) / 100; | ||||
7239 | |||||
7240 | nsAutoCString prefNameZ(basePrefName); | ||||
7241 | prefNameZ.AppendLiteral("delta_multiplier_z"); | ||||
7242 | mMultiplierZ[aIndex] = | ||||
7243 | static_cast<double>(Preferences::GetInt(prefNameZ.get(), 100)) / 100; | ||||
7244 | |||||
7245 | nsAutoCString prefNameAction(basePrefName); | ||||
7246 | prefNameAction.AppendLiteral("action"); | ||||
7247 | int32_t action = Preferences::GetInt(prefNameAction.get(), ACTION_SCROLL); | ||||
7248 | if (action < int32_t(ACTION_NONE) || action > int32_t(ACTION_LAST)) { | ||||
7249 | NS_WARNING("Unsupported action pref value, replaced with 'Scroll'.")NS_DebugBreak(NS_DEBUG_WARNING, "Unsupported action pref value, replaced with 'Scroll'." , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 7249); | ||||
7250 | action = ACTION_SCROLL; | ||||
7251 | } | ||||
7252 | mActions[aIndex] = static_cast<Action>(action); | ||||
7253 | |||||
7254 | // Compute action values overridden by .override_x pref. | ||||
7255 | // At present, override is possible only for the x-direction | ||||
7256 | // because this pref is introduced mainly for tilt wheels. | ||||
7257 | // Note that ACTION_HORIZONTALIZED_SCROLL isn't a valid value for this pref | ||||
7258 | // because it affects only to deltaY. | ||||
7259 | prefNameAction.AppendLiteral(".override_x"); | ||||
7260 | int32_t actionOverrideX = Preferences::GetInt(prefNameAction.get(), -1); | ||||
7261 | if (actionOverrideX < -1 || actionOverrideX > int32_t(ACTION_LAST) || | ||||
7262 | actionOverrideX == ACTION_HORIZONTALIZED_SCROLL) { | ||||
7263 | NS_WARNING("Unsupported action override pref value, didn't override.")NS_DebugBreak(NS_DEBUG_WARNING, "Unsupported action override pref value, didn't override." , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/events/EventStateManager.cpp" , 7263); | ||||
7264 | actionOverrideX = -1; | ||||
7265 | } | ||||
7266 | mOverriddenActionsX[aIndex] = (actionOverrideX == -1) | ||||
7267 | ? static_cast<Action>(action) | ||||
7268 | : static_cast<Action>(actionOverrideX); | ||||
7269 | } | ||||
7270 | |||||
7271 | void EventStateManager::WheelPrefs::GetMultiplierForDeltaXAndY( | ||||
7272 | const WidgetWheelEvent* aEvent, Index aIndex, double* aMultiplierForDeltaX, | ||||
7273 | double* aMultiplierForDeltaY) { | ||||
7274 | *aMultiplierForDeltaX = mMultiplierX[aIndex]; | ||||
7275 | *aMultiplierForDeltaY = mMultiplierY[aIndex]; | ||||
7276 | // If the event has been horizontalized(I.e. treated as a horizontal wheel | ||||
7277 | // scroll for a vertical wheel scroll), then we should swap mMultiplierX and | ||||
7278 | // mMultiplierY. By doing this, multipliers will still apply to the delta | ||||
7279 | // values they origianlly corresponded to. | ||||
7280 | if (aEvent->mDeltaValuesHorizontalizedForDefaultHandler && | ||||
7281 | ComputeActionFor(aEvent) == ACTION_HORIZONTALIZED_SCROLL) { | ||||
7282 | std::swap(*aMultiplierForDeltaX, *aMultiplierForDeltaY); | ||||
7283 | } | ||||
7284 | } | ||||
7285 | |||||
7286 | void EventStateManager::WheelPrefs::ApplyUserPrefsToDelta( | ||||
7287 | WidgetWheelEvent* aEvent) { | ||||
7288 | if (aEvent->mCustomizedByUserPrefs) { | ||||
7289 | return; | ||||
7290 | } | ||||
7291 | |||||
7292 | Index index = GetIndexFor(aEvent); | ||||
7293 | Init(index); | ||||
7294 | |||||
7295 | double multiplierForDeltaX = 1.0, multiplierForDeltaY = 1.0; | ||||
7296 | GetMultiplierForDeltaXAndY(aEvent, index, &multiplierForDeltaX, | ||||
7297 | &multiplierForDeltaY); | ||||
7298 | aEvent->mDeltaX *= multiplierForDeltaX; | ||||
7299 | aEvent->mDeltaY *= multiplierForDeltaY; | ||||
7300 | aEvent->mDeltaZ *= mMultiplierZ[index]; | ||||
7301 | |||||
7302 | // If the multiplier is 1.0 or -1.0, i.e., it doesn't change the absolute | ||||
7303 | // value, we should use lineOrPageDelta values which were set by widget. | ||||
7304 | // Otherwise, we need to compute them from accumulated delta values. | ||||
7305 | if (!NeedToComputeLineOrPageDelta(aEvent)) { | ||||
7306 | aEvent->mLineOrPageDeltaX *= static_cast<int32_t>(multiplierForDeltaX); | ||||
7307 | aEvent->mLineOrPageDeltaY *= static_cast<int32_t>(multiplierForDeltaY); | ||||
7308 | } else { | ||||
7309 | aEvent->mLineOrPageDeltaX = 0; | ||||
7310 | aEvent->mLineOrPageDeltaY = 0; | ||||
7311 | } | ||||
7312 | |||||
7313 | aEvent->mCustomizedByUserPrefs = | ||||
7314 | ((mMultiplierX[index] != 1.0) || (mMultiplierY[index] != 1.0) || | ||||
7315 | (mMultiplierZ[index] != 1.0)); | ||||
7316 | } | ||||
7317 | |||||
7318 | void EventStateManager::WheelPrefs::CancelApplyingUserPrefsFromOverflowDelta( | ||||
7319 | WidgetWheelEvent* aEvent) { | ||||
7320 | Index index = GetIndexFor(aEvent); | ||||
7321 | Init(index); | ||||
7322 | |||||
7323 | // XXX If the multiplier pref value is negative, the scroll direction was | ||||
7324 | // changed and caused to scroll different direction. In such case, | ||||
7325 | // this method reverts the sign of overflowDelta. Does it make widget | ||||
7326 | // happy? Although, widget can know the pref applied delta values by | ||||
7327 | // referrencing the deltaX and deltaY of the event. | ||||
7328 | |||||
7329 | double multiplierForDeltaX = 1.0, multiplierForDeltaY = 1.0; | ||||
7330 | GetMultiplierForDeltaXAndY(aEvent, index, &multiplierForDeltaX, | ||||
7331 | &multiplierForDeltaY); | ||||
7332 | if (multiplierForDeltaX) { | ||||
7333 | aEvent->mOverflowDeltaX /= multiplierForDeltaX; | ||||
7334 | } | ||||
7335 | if (multiplierForDeltaY) { | ||||
7336 | aEvent->mOverflowDeltaY /= multiplierForDeltaY; | ||||
7337 | } | ||||
7338 | } | ||||
7339 | |||||
7340 | EventStateManager::WheelPrefs::Action | ||||
7341 | EventStateManager::WheelPrefs::ComputeActionFor( | ||||
7342 | const WidgetWheelEvent* aEvent) { | ||||
7343 | Index index = GetIndexFor(aEvent); | ||||
7344 | Init(index); | ||||
7345 | |||||
7346 | bool deltaXPreferred = (Abs(aEvent->mDeltaX) > Abs(aEvent->mDeltaY) && | ||||
7347 | Abs(aEvent->mDeltaX) > Abs(aEvent->mDeltaZ)); | ||||
7348 | Action* actions = deltaXPreferred ? mOverriddenActionsX : mActions; | ||||
7349 | if (actions[index] == ACTION_NONE || actions[index] == ACTION_SCROLL || | ||||
7350 | actions[index] == ACTION_HORIZONTALIZED_SCROLL) { | ||||
7351 | return actions[index]; | ||||
7352 | } | ||||
7353 | |||||
7354 | // Momentum events shouldn't run special actions. | ||||
7355 | if (aEvent->mIsMomentum) { | ||||
7356 | // Use the default action. Note that user might kill the wheel scrolling. | ||||
7357 | Init(INDEX_DEFAULT); | ||||
7358 | if (actions[INDEX_DEFAULT] == ACTION_SCROLL || | ||||
7359 | actions[INDEX_DEFAULT] == ACTION_HORIZONTALIZED_SCROLL) { | ||||
7360 | return actions[INDEX_DEFAULT]; | ||||
7361 | } | ||||
7362 | return ACTION_NONE; | ||||
7363 | } | ||||
7364 | |||||
7365 | return actions[index]; | ||||
7366 | } | ||||
7367 | |||||
7368 | bool EventStateManager::WheelPrefs::NeedToComputeLineOrPageDelta( | ||||
7369 | const WidgetWheelEvent* aEvent) { | ||||
7370 | Index index = GetIndexFor(aEvent); | ||||
7371 | Init(index); | ||||
7372 | |||||
7373 | return (mMultiplierX[index] != 1.0 && mMultiplierX[index] != -1.0) || | ||||
7374 | (mMultiplierY[index] != 1.0 && mMultiplierY[index] != -1.0); | ||||
7375 | } | ||||
7376 | |||||
7377 | void EventStateManager::WheelPrefs::GetUserPrefsForEvent( | ||||
7378 | const WidgetWheelEvent* aEvent, double* aOutMultiplierX, | ||||
7379 | double* aOutMultiplierY) { | ||||
7380 | Index index = GetIndexFor(aEvent); | ||||
7381 | Init(index); | ||||
7382 | |||||
7383 | double multiplierForDeltaX = 1.0, multiplierForDeltaY = 1.0; | ||||
7384 | GetMultiplierForDeltaXAndY(aEvent, index, &multiplierForDeltaX, | ||||
7385 | &multiplierForDeltaY); | ||||
7386 | *aOutMultiplierX = multiplierForDeltaX; | ||||
7387 | *aOutMultiplierY = multiplierForDeltaY; | ||||
7388 | } | ||||
7389 | |||||
7390 | // static | ||||
7391 | Maybe<layers::APZWheelAction> EventStateManager::APZWheelActionFor( | ||||
7392 | const WidgetWheelEvent* aEvent) { | ||||
7393 | if (aEvent->mMessage != eWheel) { | ||||
7394 | return Nothing(); | ||||
7395 | } | ||||
7396 | WheelPrefs::Action action = | ||||
7397 | WheelPrefs::GetInstance()->ComputeActionFor(aEvent); | ||||
7398 | switch (action) { | ||||
7399 | case WheelPrefs::ACTION_SCROLL: | ||||
7400 | case WheelPrefs::ACTION_HORIZONTALIZED_SCROLL: | ||||
7401 | return Some(layers::APZWheelAction::Scroll); | ||||
7402 | case WheelPrefs::ACTION_PINCH_ZOOM: | ||||
7403 | return Some(layers::APZWheelAction::PinchZoom); | ||||
7404 | default: | ||||
7405 | return Nothing(); | ||||
7406 | } | ||||
7407 | } | ||||
7408 | |||||
7409 | // static | ||||
7410 | WheelDeltaAdjustmentStrategy EventStateManager::GetWheelDeltaAdjustmentStrategy( | ||||
7411 | const WidgetWheelEvent& aEvent) { | ||||
7412 | if (aEvent.mMessage != eWheel) { | ||||
7413 | return WheelDeltaAdjustmentStrategy::eNone; | ||||
7414 | } | ||||
7415 | switch (WheelPrefs::GetInstance()->ComputeActionFor(&aEvent)) { | ||||
7416 | case WheelPrefs::ACTION_SCROLL: | ||||
7417 | if (StaticPrefs::mousewheel_autodir_enabled() && 0 == aEvent.mDeltaZ) { | ||||
7418 | if (StaticPrefs::mousewheel_autodir_honourroot()) { | ||||
7419 | return WheelDeltaAdjustmentStrategy::eAutoDirWithRootHonour; | ||||
7420 | } | ||||
7421 | return WheelDeltaAdjustmentStrategy::eAutoDir; | ||||
7422 | } | ||||
7423 | return WheelDeltaAdjustmentStrategy::eNone; | ||||
7424 | case WheelPrefs::ACTION_HORIZONTALIZED_SCROLL: | ||||
7425 | return WheelDeltaAdjustmentStrategy::eHorizontalize; | ||||
7426 | default: | ||||
7427 | break; | ||||
7428 | } | ||||
7429 | return WheelDeltaAdjustmentStrategy::eNone; | ||||
7430 | } | ||||
7431 | |||||
7432 | void EventStateManager::GetUserPrefsForWheelEvent( | ||||
7433 | const WidgetWheelEvent* aEvent, double* aOutMultiplierX, | ||||
7434 | double* aOutMultiplierY) { | ||||
7435 | WheelPrefs::GetInstance()->GetUserPrefsForEvent(aEvent, aOutMultiplierX, | ||||
7436 | aOutMultiplierY); | ||||
7437 | } | ||||
7438 | |||||
7439 | bool EventStateManager::WheelPrefs::IsOverOnePageScrollAllowedX( | ||||
7440 | const WidgetWheelEvent* aEvent) { | ||||
7441 | Index index = GetIndexFor(aEvent); | ||||
7442 | Init(index); | ||||
7443 | return Abs(mMultiplierX[index]) >= | ||||
7444 | MIN_MULTIPLIER_VALUE_ALLOWING_OVER_ONE_PAGE_SCROLL; | ||||
7445 | } | ||||
7446 | |||||
7447 | bool EventStateManager::WheelPrefs::IsOverOnePageScrollAllowedY( | ||||
7448 | const WidgetWheelEvent* aEvent) { | ||||
7449 | Index index = GetIndexFor(aEvent); | ||||
7450 | Init(index); | ||||
7451 | return Abs(mMultiplierY[index]) >= | ||||
7452 | MIN_MULTIPLIER_VALUE_ALLOWING_OVER_ONE_PAGE_SCROLL; | ||||
7453 | } | ||||
7454 | |||||
7455 | } // namespace mozilla |