File: | var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp |
Warning: | line 3317, column 11 Value stored to 'startFrame' is never read |
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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 "mozilla/dom/BrowserParent.h" |
8 | |
9 | #include "nsFocusManager.h" |
10 | |
11 | #include "LayoutConstants.h" |
12 | #include "ChildIterator.h" |
13 | #include "nsIInterfaceRequestorUtils.h" |
14 | #include "nsGkAtoms.h" |
15 | #include "nsContentUtils.h" |
16 | #include "ContentParent.h" |
17 | #include "nsPIDOMWindow.h" |
18 | #include "nsIContentInlines.h" |
19 | #include "nsIDocShell.h" |
20 | #include "nsIDocShellTreeOwner.h" |
21 | #include "nsIFormControl.h" |
22 | #include "nsLayoutUtils.h" |
23 | #include "nsFrameTraversal.h" |
24 | #include "nsIWebNavigation.h" |
25 | #include "nsCaret.h" |
26 | #include "nsIBaseWindow.h" |
27 | #include "nsIAppWindow.h" |
28 | #include "nsTextControlFrame.h" |
29 | #include "nsViewManager.h" |
30 | #include "nsFrameSelection.h" |
31 | #include "mozilla/dom/Selection.h" |
32 | #include "nsXULPopupManager.h" |
33 | #include "nsMenuPopupFrame.h" |
34 | #include "nsIScriptError.h" |
35 | #include "nsIScriptObjectPrincipal.h" |
36 | #include "nsIPrincipal.h" |
37 | #include "nsIObserverService.h" |
38 | #include "BrowserChild.h" |
39 | #include "nsFrameLoader.h" |
40 | #include "nsHTMLDocument.h" |
41 | #include "nsNetUtil.h" |
42 | #include "nsRange.h" |
43 | #include "nsFrameLoaderOwner.h" |
44 | #include "nsQueryObject.h" |
45 | |
46 | #include "mozilla/AccessibleCaretEventHub.h" |
47 | #include "mozilla/ContentEvents.h" |
48 | #include "mozilla/FocusModel.h" |
49 | #include "mozilla/dom/ContentChild.h" |
50 | #include "mozilla/dom/Document.h" |
51 | #include "mozilla/dom/DocumentInlines.h" |
52 | #include "mozilla/dom/Element.h" |
53 | #include "mozilla/dom/ElementBinding.h" |
54 | #include "mozilla/dom/HTMLImageElement.h" |
55 | #include "mozilla/dom/HTMLInputElement.h" |
56 | #include "mozilla/dom/HTMLSlotElement.h" |
57 | #include "mozilla/dom/HTMLAreaElement.h" |
58 | #include "mozilla/dom/BrowserBridgeChild.h" |
59 | #include "mozilla/dom/Text.h" |
60 | #include "mozilla/dom/XULPopupElement.h" |
61 | #include "mozilla/dom/WindowGlobalParent.h" |
62 | #include "mozilla/dom/WindowGlobalChild.h" |
63 | #include "mozilla/EventDispatcher.h" |
64 | #include "mozilla/EventStateManager.h" |
65 | #include "mozilla/HTMLEditor.h" |
66 | #include "mozilla/IMEStateManager.h" |
67 | #include "mozilla/LookAndFeel.h" |
68 | #include "mozilla/Maybe.h" |
69 | #include "mozilla/PointerLockManager.h" |
70 | #include "mozilla/Preferences.h" |
71 | #include "mozilla/PresShell.h" |
72 | #include "mozilla/Services.h" |
73 | #include "mozilla/Unused.h" |
74 | #include "mozilla/StaticPrefs_full_screen_api.h" |
75 | #include "mozilla/Try.h" |
76 | #include "mozilla/widget/IMEData.h" |
77 | #include <algorithm> |
78 | |
79 | #include "nsIDOMXULMenuListElement.h" |
80 | |
81 | #ifdef ACCESSIBILITY1 |
82 | # include "nsAccessibilityService.h" |
83 | #endif |
84 | |
85 | using namespace mozilla; |
86 | using namespace mozilla::dom; |
87 | using namespace mozilla::widget; |
88 | |
89 | // Two types of focus pr logging are available: |
90 | // 'Focus' for normal focus manager calls |
91 | // 'FocusNavigation' for tab and document navigation |
92 | LazyLogModule gFocusLog("Focus"); |
93 | LazyLogModule gFocusNavigationLog("FocusNavigation"); |
94 | |
95 | #define LOGFOCUS(args)do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, MOZ_LOG_EXPAND_ARGS args); } } while (0) MOZ_LOG(gFocusLog, mozilla::LogLevel::Debug, args)do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, MOZ_LOG_EXPAND_ARGS args); } } while (0) |
96 | #define LOGFOCUSNAVIGATION(args)do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, MOZ_LOG_EXPAND_ARGS args); } } while (0) \ |
97 | MOZ_LOG(gFocusNavigationLog, mozilla::LogLevel::Debug, args)do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, MOZ_LOG_EXPAND_ARGS args); } } while (0) |
98 | |
99 | #define LOGTAG(log, format, content)if ((__builtin_expect(!!(mozilla::detail::log_test(log, LogLevel ::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (content ) { content->NodeInfo()->NameAtom()->ToUTF8String(tag ); } do { const ::mozilla::LogModule* moz_real_module = log; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, format, tag.get()); } } while (0); } \ |
100 | if (MOZ_LOG_TEST(log, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(log, LogLevel:: Debug)), 0))) { \ |
101 | nsAutoCString tag("(none)"_ns); \ |
102 | if (content) { \ |
103 | content->NodeInfo()->NameAtom()->ToUTF8String(tag); \ |
104 | } \ |
105 | MOZ_LOG(log, LogLevel::Debug, (format, tag.get()))do { const ::mozilla::LogModule* moz_real_module = log; if (( __builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, format, tag.get()); } } while (0); \ |
106 | } |
107 | |
108 | #define LOGCONTENT(format, content)if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (content) { content->NodeInfo()->NameAtom()->ToUTF8String (tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, format, tag.get()); } } while (0); } LOGTAG(gFocusLog, format, content)if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (content) { content->NodeInfo()->NameAtom()->ToUTF8String (tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, format, tag.get()); } } while (0); } |
109 | #define LOGCONTENTNAVIGATION(format, content)if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusNavigationLog , LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (content) { content->NodeInfo()->NameAtom()->ToUTF8String (tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, format, tag.get()); } } while (0); } \ |
110 | LOGTAG(gFocusNavigationLog, format, content)if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusNavigationLog , LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (content) { content->NodeInfo()->NameAtom()->ToUTF8String (tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, format, tag.get()); } } while (0); } |
111 | |
112 | struct nsDelayedBlurOrFocusEvent { |
113 | nsDelayedBlurOrFocusEvent(EventMessage aEventMessage, PresShell* aPresShell, |
114 | Document* aDocument, EventTarget* aTarget, |
115 | EventTarget* aRelatedTarget) |
116 | : mPresShell(aPresShell), |
117 | mDocument(aDocument), |
118 | mTarget(aTarget), |
119 | mEventMessage(aEventMessage), |
120 | mRelatedTarget(aRelatedTarget) {} |
121 | |
122 | nsDelayedBlurOrFocusEvent(const nsDelayedBlurOrFocusEvent& aOther) |
123 | : mPresShell(aOther.mPresShell), |
124 | mDocument(aOther.mDocument), |
125 | mTarget(aOther.mTarget), |
126 | mEventMessage(aOther.mEventMessage) {} |
127 | |
128 | RefPtr<PresShell> mPresShell; |
129 | nsCOMPtr<Document> mDocument; |
130 | nsCOMPtr<EventTarget> mTarget; |
131 | EventMessage mEventMessage; |
132 | nsCOMPtr<EventTarget> mRelatedTarget; |
133 | }; |
134 | |
135 | inline void ImplCycleCollectionUnlink(nsDelayedBlurOrFocusEvent& aField) { |
136 | aField.mPresShell = nullptr; |
137 | aField.mDocument = nullptr; |
138 | aField.mTarget = nullptr; |
139 | aField.mRelatedTarget = nullptr; |
140 | } |
141 | |
142 | inline void ImplCycleCollectionTraverse( |
143 | nsCycleCollectionTraversalCallback& aCallback, |
144 | nsDelayedBlurOrFocusEvent& aField, const char* aName, uint32_t aFlags = 0) { |
145 | CycleCollectionNoteChild( |
146 | aCallback, static_cast<nsIDocumentObserver*>(aField.mPresShell.get()), |
147 | aName, aFlags); |
148 | CycleCollectionNoteChild(aCallback, aField.mDocument.get(), aName, aFlags); |
149 | CycleCollectionNoteChild(aCallback, aField.mTarget.get(), aName, aFlags); |
150 | CycleCollectionNoteChild(aCallback, aField.mRelatedTarget.get(), aName, |
151 | aFlags); |
152 | } |
153 | |
154 | NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsFocusManager)nsresult nsFocusManager::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/base/nsFocusManager.cpp" , 154); 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 = nsFocusManager::cycleCollection ::GetParticipant(); return NS_OK; } if (LowWordEquals(aIID, ( nsCycleCollectionISupports::COMTypeInfo<nsCycleCollectionISupports , void>::kIID))) { *aInstancePtr = nsFocusManager::cycleCollection ::Upcast(this); return NS_OK; } foundInterface = nullptr; } else |
155 | NS_INTERFACE_MAP_ENTRY(nsIFocusManager)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIFocusManager>)) foundInterface = static_cast<nsIFocusManager*>(this); else |
156 | NS_INTERFACE_MAP_ENTRY(nsIObserver)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIObserver>)) foundInterface = static_cast <nsIObserver*>(this); else |
157 | NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsISupportsWeakReference>)) foundInterface = static_cast<nsISupportsWeakReference*>(this); else |
158 | NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIFocusManager)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsISupports>)) foundInterface = static_cast <nsISupports*>(static_cast<nsIFocusManager*>(this )); else |
159 | 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/base/nsFocusManager.cpp" , 159); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aIID.Equals((nsISupports::COMTypeInfo<nsISupports, void>::kIID))" ")"); do { *((volatile int*)__null) = 159; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); status = NS_NOINTERFACE ; } else { (foundInterface)->AddRef(); status = NS_OK; } * aInstancePtr = foundInterface; return status; } |
160 | |
161 | NS_IMPL_CYCLE_COLLECTING_ADDREF(nsFocusManager)MozExternalRefCountType nsFocusManager::AddRef(void) { static_assert (!std::is_destructible_v<nsFocusManager>, "Reference-counted class " "nsFocusManager" " 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/base/nsFocusManager.cpp" , 161); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 161; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("nsFocusManager" " not thread-safe"); nsISupports* base = nsFocusManager::cycleCollection ::Upcast(this); nsrefcnt count = mRefCnt.incr(base); NS_LogAddRef ((this), (count), ("nsFocusManager"), (uint32_t)(sizeof(*this ))); return count; } |
162 | NS_IMPL_CYCLE_COLLECTING_RELEASE(nsFocusManager)MozExternalRefCountType nsFocusManager::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/base/nsFocusManager.cpp" , 162); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 162 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); _mOwningThread.AssertOwnership("nsFocusManager" " not thread-safe" ); nsISupports* base = nsFocusManager::cycleCollection::Upcast (this); nsrefcnt count = mRefCnt.decr(base); NS_LogRelease((this ), (count), ("nsFocusManager")); return count; } void nsFocusManager ::DeleteCycleCollectable(void) { delete (this); } |
163 | |
164 | NS_IMPL_CYCLE_COLLECTION_WEAK(nsFocusManager, mActiveWindow,nsFocusManager::cycleCollection nsFocusManager::_cycleCollectorGlobal ; void nsFocusManager::cycleCollection::Unlink(void* p) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); ImplCycleCollectionUnlink (tmp->mActiveWindow); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInContent ); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInChrome ); ImplCycleCollectionUnlink(tmp->mFocusedWindow); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInContent); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInChrome); ImplCycleCollectionUnlink (tmp->mFocusedElement); ImplCycleCollectionUnlink(tmp-> mFirstBlurEvent); ImplCycleCollectionUnlink(tmp->mFirstFocusEvent ); ImplCycleCollectionUnlink(tmp->mWindowBeingLowered); ImplCycleCollectionUnlink (tmp->mDelayedBlurFocusEvents); tmp->ClearWeakReferences (); (void)tmp; } nsresult nsFocusManager::cycleCollection::TraverseNative ( void* p, nsCycleCollectionTraversalCallback& cb) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); cb.DescribeRefCountedNode (tmp->mRefCnt.get(), "nsFocusManager"); ImplCycleCollectionTraverse (cb, tmp->mActiveWindow, "mActiveWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mActiveBrowsingContextInContent, "mActiveBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveBrowsingContextInChrome , "mActiveBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedWindow, "mFocusedWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedBrowsingContextInContent, "mFocusedBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mFocusedBrowsingContextInChrome , "mFocusedBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedElement, "mFocusedElement", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstBlurEvent, "mFirstBlurEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstFocusEvent, "mFirstFocusEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mWindowBeingLowered, "mWindowBeingLowered", 0); ImplCycleCollectionTraverse (cb, tmp->mDelayedBlurFocusEvents, "mDelayedBlurFocusEvents" , 0); (void)tmp; return NS_OK; } |
165 | mActiveBrowsingContextInContent,nsFocusManager::cycleCollection nsFocusManager::_cycleCollectorGlobal ; void nsFocusManager::cycleCollection::Unlink(void* p) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); ImplCycleCollectionUnlink (tmp->mActiveWindow); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInContent ); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInChrome ); ImplCycleCollectionUnlink(tmp->mFocusedWindow); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInContent); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInChrome); ImplCycleCollectionUnlink (tmp->mFocusedElement); ImplCycleCollectionUnlink(tmp-> mFirstBlurEvent); ImplCycleCollectionUnlink(tmp->mFirstFocusEvent ); ImplCycleCollectionUnlink(tmp->mWindowBeingLowered); ImplCycleCollectionUnlink (tmp->mDelayedBlurFocusEvents); tmp->ClearWeakReferences (); (void)tmp; } nsresult nsFocusManager::cycleCollection::TraverseNative ( void* p, nsCycleCollectionTraversalCallback& cb) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); cb.DescribeRefCountedNode (tmp->mRefCnt.get(), "nsFocusManager"); ImplCycleCollectionTraverse (cb, tmp->mActiveWindow, "mActiveWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mActiveBrowsingContextInContent, "mActiveBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveBrowsingContextInChrome , "mActiveBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedWindow, "mFocusedWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedBrowsingContextInContent, "mFocusedBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mFocusedBrowsingContextInChrome , "mFocusedBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedElement, "mFocusedElement", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstBlurEvent, "mFirstBlurEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstFocusEvent, "mFirstFocusEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mWindowBeingLowered, "mWindowBeingLowered", 0); ImplCycleCollectionTraverse (cb, tmp->mDelayedBlurFocusEvents, "mDelayedBlurFocusEvents" , 0); (void)tmp; return NS_OK; } |
166 | mActiveBrowsingContextInChrome, mFocusedWindow,nsFocusManager::cycleCollection nsFocusManager::_cycleCollectorGlobal ; void nsFocusManager::cycleCollection::Unlink(void* p) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); ImplCycleCollectionUnlink (tmp->mActiveWindow); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInContent ); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInChrome ); ImplCycleCollectionUnlink(tmp->mFocusedWindow); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInContent); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInChrome); ImplCycleCollectionUnlink (tmp->mFocusedElement); ImplCycleCollectionUnlink(tmp-> mFirstBlurEvent); ImplCycleCollectionUnlink(tmp->mFirstFocusEvent ); ImplCycleCollectionUnlink(tmp->mWindowBeingLowered); ImplCycleCollectionUnlink (tmp->mDelayedBlurFocusEvents); tmp->ClearWeakReferences (); (void)tmp; } nsresult nsFocusManager::cycleCollection::TraverseNative ( void* p, nsCycleCollectionTraversalCallback& cb) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); cb.DescribeRefCountedNode (tmp->mRefCnt.get(), "nsFocusManager"); ImplCycleCollectionTraverse (cb, tmp->mActiveWindow, "mActiveWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mActiveBrowsingContextInContent, "mActiveBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveBrowsingContextInChrome , "mActiveBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedWindow, "mFocusedWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedBrowsingContextInContent, "mFocusedBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mFocusedBrowsingContextInChrome , "mFocusedBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedElement, "mFocusedElement", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstBlurEvent, "mFirstBlurEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstFocusEvent, "mFirstFocusEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mWindowBeingLowered, "mWindowBeingLowered", 0); ImplCycleCollectionTraverse (cb, tmp->mDelayedBlurFocusEvents, "mDelayedBlurFocusEvents" , 0); (void)tmp; return NS_OK; } |
167 | mFocusedBrowsingContextInContent,nsFocusManager::cycleCollection nsFocusManager::_cycleCollectorGlobal ; void nsFocusManager::cycleCollection::Unlink(void* p) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); ImplCycleCollectionUnlink (tmp->mActiveWindow); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInContent ); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInChrome ); ImplCycleCollectionUnlink(tmp->mFocusedWindow); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInContent); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInChrome); ImplCycleCollectionUnlink (tmp->mFocusedElement); ImplCycleCollectionUnlink(tmp-> mFirstBlurEvent); ImplCycleCollectionUnlink(tmp->mFirstFocusEvent ); ImplCycleCollectionUnlink(tmp->mWindowBeingLowered); ImplCycleCollectionUnlink (tmp->mDelayedBlurFocusEvents); tmp->ClearWeakReferences (); (void)tmp; } nsresult nsFocusManager::cycleCollection::TraverseNative ( void* p, nsCycleCollectionTraversalCallback& cb) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); cb.DescribeRefCountedNode (tmp->mRefCnt.get(), "nsFocusManager"); ImplCycleCollectionTraverse (cb, tmp->mActiveWindow, "mActiveWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mActiveBrowsingContextInContent, "mActiveBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveBrowsingContextInChrome , "mActiveBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedWindow, "mFocusedWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedBrowsingContextInContent, "mFocusedBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mFocusedBrowsingContextInChrome , "mFocusedBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedElement, "mFocusedElement", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstBlurEvent, "mFirstBlurEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstFocusEvent, "mFirstFocusEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mWindowBeingLowered, "mWindowBeingLowered", 0); ImplCycleCollectionTraverse (cb, tmp->mDelayedBlurFocusEvents, "mDelayedBlurFocusEvents" , 0); (void)tmp; return NS_OK; } |
168 | mFocusedBrowsingContextInChrome, mFocusedElement,nsFocusManager::cycleCollection nsFocusManager::_cycleCollectorGlobal ; void nsFocusManager::cycleCollection::Unlink(void* p) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); ImplCycleCollectionUnlink (tmp->mActiveWindow); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInContent ); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInChrome ); ImplCycleCollectionUnlink(tmp->mFocusedWindow); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInContent); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInChrome); ImplCycleCollectionUnlink (tmp->mFocusedElement); ImplCycleCollectionUnlink(tmp-> mFirstBlurEvent); ImplCycleCollectionUnlink(tmp->mFirstFocusEvent ); ImplCycleCollectionUnlink(tmp->mWindowBeingLowered); ImplCycleCollectionUnlink (tmp->mDelayedBlurFocusEvents); tmp->ClearWeakReferences (); (void)tmp; } nsresult nsFocusManager::cycleCollection::TraverseNative ( void* p, nsCycleCollectionTraversalCallback& cb) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); cb.DescribeRefCountedNode (tmp->mRefCnt.get(), "nsFocusManager"); ImplCycleCollectionTraverse (cb, tmp->mActiveWindow, "mActiveWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mActiveBrowsingContextInContent, "mActiveBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveBrowsingContextInChrome , "mActiveBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedWindow, "mFocusedWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedBrowsingContextInContent, "mFocusedBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mFocusedBrowsingContextInChrome , "mFocusedBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedElement, "mFocusedElement", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstBlurEvent, "mFirstBlurEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstFocusEvent, "mFirstFocusEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mWindowBeingLowered, "mWindowBeingLowered", 0); ImplCycleCollectionTraverse (cb, tmp->mDelayedBlurFocusEvents, "mDelayedBlurFocusEvents" , 0); (void)tmp; return NS_OK; } |
169 | mFirstBlurEvent, mFirstFocusEvent,nsFocusManager::cycleCollection nsFocusManager::_cycleCollectorGlobal ; void nsFocusManager::cycleCollection::Unlink(void* p) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); ImplCycleCollectionUnlink (tmp->mActiveWindow); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInContent ); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInChrome ); ImplCycleCollectionUnlink(tmp->mFocusedWindow); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInContent); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInChrome); ImplCycleCollectionUnlink (tmp->mFocusedElement); ImplCycleCollectionUnlink(tmp-> mFirstBlurEvent); ImplCycleCollectionUnlink(tmp->mFirstFocusEvent ); ImplCycleCollectionUnlink(tmp->mWindowBeingLowered); ImplCycleCollectionUnlink (tmp->mDelayedBlurFocusEvents); tmp->ClearWeakReferences (); (void)tmp; } nsresult nsFocusManager::cycleCollection::TraverseNative ( void* p, nsCycleCollectionTraversalCallback& cb) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); cb.DescribeRefCountedNode (tmp->mRefCnt.get(), "nsFocusManager"); ImplCycleCollectionTraverse (cb, tmp->mActiveWindow, "mActiveWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mActiveBrowsingContextInContent, "mActiveBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveBrowsingContextInChrome , "mActiveBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedWindow, "mFocusedWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedBrowsingContextInContent, "mFocusedBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mFocusedBrowsingContextInChrome , "mFocusedBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedElement, "mFocusedElement", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstBlurEvent, "mFirstBlurEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstFocusEvent, "mFirstFocusEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mWindowBeingLowered, "mWindowBeingLowered", 0); ImplCycleCollectionTraverse (cb, tmp->mDelayedBlurFocusEvents, "mDelayedBlurFocusEvents" , 0); (void)tmp; return NS_OK; } |
170 | mWindowBeingLowered, mDelayedBlurFocusEvents)nsFocusManager::cycleCollection nsFocusManager::_cycleCollectorGlobal ; void nsFocusManager::cycleCollection::Unlink(void* p) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); ImplCycleCollectionUnlink (tmp->mActiveWindow); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInContent ); ImplCycleCollectionUnlink(tmp->mActiveBrowsingContextInChrome ); ImplCycleCollectionUnlink(tmp->mFocusedWindow); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInContent); ImplCycleCollectionUnlink (tmp->mFocusedBrowsingContextInChrome); ImplCycleCollectionUnlink (tmp->mFocusedElement); ImplCycleCollectionUnlink(tmp-> mFirstBlurEvent); ImplCycleCollectionUnlink(tmp->mFirstFocusEvent ); ImplCycleCollectionUnlink(tmp->mWindowBeingLowered); ImplCycleCollectionUnlink (tmp->mDelayedBlurFocusEvents); tmp->ClearWeakReferences (); (void)tmp; } nsresult nsFocusManager::cycleCollection::TraverseNative ( void* p, nsCycleCollectionTraversalCallback& cb) { nsFocusManager * tmp = DowncastCCParticipant<nsFocusManager>(p); cb.DescribeRefCountedNode (tmp->mRefCnt.get(), "nsFocusManager"); ImplCycleCollectionTraverse (cb, tmp->mActiveWindow, "mActiveWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mActiveBrowsingContextInContent, "mActiveBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mActiveBrowsingContextInChrome , "mActiveBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedWindow, "mFocusedWindow", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedBrowsingContextInContent, "mFocusedBrowsingContextInContent" , 0); ImplCycleCollectionTraverse(cb, tmp->mFocusedBrowsingContextInChrome , "mFocusedBrowsingContextInChrome", 0); ImplCycleCollectionTraverse (cb, tmp->mFocusedElement, "mFocusedElement", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstBlurEvent, "mFirstBlurEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mFirstFocusEvent, "mFirstFocusEvent", 0); ImplCycleCollectionTraverse (cb, tmp->mWindowBeingLowered, "mWindowBeingLowered", 0); ImplCycleCollectionTraverse (cb, tmp->mDelayedBlurFocusEvents, "mDelayedBlurFocusEvents" , 0); (void)tmp; return NS_OK; } |
171 | |
172 | StaticRefPtr<nsFocusManager> nsFocusManager::sInstance; |
173 | bool nsFocusManager::sTestMode = false; |
174 | uint64_t nsFocusManager::sFocusActionCounter = 0; |
175 | |
176 | static const char* kObservedPrefs[] = {"accessibility.browsewithcaret", |
177 | "focusmanager.testmode", nullptr}; |
178 | |
179 | nsFocusManager::nsFocusManager() |
180 | : mActionIdForActiveBrowsingContextInContent(0), |
181 | mActionIdForActiveBrowsingContextInChrome(0), |
182 | mActionIdForFocusedBrowsingContextInContent(0), |
183 | mActionIdForFocusedBrowsingContextInChrome(0), |
184 | mActiveBrowsingContextInContentSetFromOtherProcess(false), |
185 | mEventHandlingNeedsFlush(false) {} |
186 | |
187 | nsFocusManager::~nsFocusManager() { |
188 | Preferences::UnregisterCallbacks(nsFocusManager::PrefChanged, kObservedPrefs, |
189 | this); |
190 | |
191 | nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService(); |
192 | if (obs) { |
193 | obs->RemoveObserver(this, "xpcom-shutdown"); |
194 | } |
195 | } |
196 | |
197 | // static |
198 | nsresult nsFocusManager::Init() { |
199 | sInstance = new nsFocusManager(); |
200 | |
201 | sTestMode = Preferences::GetBool("focusmanager.testmode", false); |
202 | |
203 | Preferences::RegisterCallbacks(nsFocusManager::PrefChanged, kObservedPrefs, |
204 | sInstance.get()); |
205 | |
206 | nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService(); |
207 | if (obs) { |
208 | obs->AddObserver(sInstance, "xpcom-shutdown", true); |
209 | } |
210 | |
211 | return NS_OK; |
212 | } |
213 | |
214 | // static |
215 | void nsFocusManager::Shutdown() { sInstance = nullptr; } |
216 | |
217 | // static |
218 | void nsFocusManager::PrefChanged(const char* aPref, void* aSelf) { |
219 | if (RefPtr<nsFocusManager> fm = static_cast<nsFocusManager*>(aSelf)) { |
220 | fm->PrefChanged(aPref); |
221 | } |
222 | } |
223 | |
224 | void nsFocusManager::PrefChanged(const char* aPref) { |
225 | nsDependentCString pref(aPref); |
226 | if (pref.EqualsLiteral("accessibility.browsewithcaret")) { |
227 | UpdateCaretForCaretBrowsingMode(); |
228 | } else if (pref.EqualsLiteral("focusmanager.testmode")) { |
229 | sTestMode = Preferences::GetBool("focusmanager.testmode", false); |
230 | } |
231 | } |
232 | |
233 | NS_IMETHODIMPnsresult |
234 | nsFocusManager::Observe(nsISupports* aSubject, const char* aTopic, |
235 | const char16_t* aData) { |
236 | if (!nsCRT::strcmp(aTopic, "xpcom-shutdown")) { |
237 | mActiveWindow = nullptr; |
238 | mActiveBrowsingContextInContent = nullptr; |
239 | mActionIdForActiveBrowsingContextInContent = 0; |
240 | mActionIdForFocusedBrowsingContextInContent = 0; |
241 | mActiveBrowsingContextInChrome = nullptr; |
242 | mActionIdForActiveBrowsingContextInChrome = 0; |
243 | mActionIdForFocusedBrowsingContextInChrome = 0; |
244 | mFocusedWindow = nullptr; |
245 | mFocusedBrowsingContextInContent = nullptr; |
246 | mFocusedBrowsingContextInChrome = nullptr; |
247 | mFocusedElement = nullptr; |
248 | mFirstBlurEvent = nullptr; |
249 | mFirstFocusEvent = nullptr; |
250 | mWindowBeingLowered = nullptr; |
251 | mDelayedBlurFocusEvents.Clear(); |
252 | } |
253 | |
254 | return NS_OK; |
255 | } |
256 | |
257 | static bool ActionIdComparableAndLower(uint64_t aActionId, |
258 | uint64_t aReference) { |
259 | MOZ_ASSERT(aActionId, "Uninitialized action id")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aActionId)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aActionId))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aActionId" " (" "Uninitialized action id" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 259); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActionId" ") (" "Uninitialized action id" ")"); do { *((volatile int*)__null ) = 259; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
260 | auto [actionProc, actionId] = |
261 | nsContentUtils::SplitProcessSpecificId(aActionId); |
262 | auto [refProc, refId] = nsContentUtils::SplitProcessSpecificId(aReference); |
263 | return actionProc == refProc && actionId < refId; |
264 | } |
265 | |
266 | // given a frame content node, retrieve the nsIDOMWindow displayed in it |
267 | static nsPIDOMWindowOuter* GetContentWindow(nsIContent* aContent) { |
268 | Document* doc = aContent->GetComposedDoc(); |
269 | if (doc) { |
270 | Document* subdoc = doc->GetSubDocumentFor(aContent); |
271 | if (subdoc) { |
272 | return subdoc->GetWindow(); |
273 | } |
274 | } |
275 | |
276 | return nullptr; |
277 | } |
278 | |
279 | bool nsFocusManager::IsFocused(nsIContent* aContent) { |
280 | if (!aContent || !mFocusedElement) { |
281 | return false; |
282 | } |
283 | return aContent == mFocusedElement; |
284 | } |
285 | |
286 | bool nsFocusManager::IsTestMode() { return sTestMode; } |
287 | |
288 | bool nsFocusManager::IsInActiveWindow(BrowsingContext* aBC) const { |
289 | RefPtr<BrowsingContext> top = aBC->Top(); |
290 | if (XRE_IsParentProcess()) { |
291 | top = top->Canonical()->TopCrossChromeBoundary(); |
292 | } |
293 | return IsSameOrAncestor(top, GetActiveBrowsingContext()); |
294 | } |
295 | |
296 | // get the current window for the given content node |
297 | static nsPIDOMWindowOuter* GetCurrentWindow(nsIContent* aContent) { |
298 | Document* doc = aContent->GetComposedDoc(); |
299 | return doc ? doc->GetWindow() : nullptr; |
300 | } |
301 | |
302 | // static |
303 | Element* nsFocusManager::GetFocusedDescendant( |
304 | nsPIDOMWindowOuter* aWindow, SearchRange aSearchRange, |
305 | nsPIDOMWindowOuter** aFocusedWindow) { |
306 | NS_ENSURE_TRUE(aWindow, nullptr)do { if ((__builtin_expect(!!(!(aWindow)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aWindow" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 306); return nullptr; } } while (false); |
307 | |
308 | *aFocusedWindow = nullptr; |
309 | |
310 | Element* currentElement = nullptr; |
311 | nsPIDOMWindowOuter* window = aWindow; |
312 | for (;;) { |
313 | *aFocusedWindow = window; |
314 | currentElement = window->GetFocusedElement(); |
315 | if (!currentElement || aSearchRange == eOnlyCurrentWindow) { |
316 | break; |
317 | } |
318 | |
319 | window = GetContentWindow(currentElement); |
320 | if (!window) { |
321 | break; |
322 | } |
323 | |
324 | if (aSearchRange == eIncludeAllDescendants) { |
325 | continue; |
326 | } |
327 | |
328 | MOZ_ASSERT(aSearchRange == eIncludeVisibleDescendants)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aSearchRange == eIncludeVisibleDescendants)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aSearchRange == eIncludeVisibleDescendants))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aSearchRange == eIncludeVisibleDescendants" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 328); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aSearchRange == eIncludeVisibleDescendants" ")"); do { *((volatile int*)__null) = 328; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
329 | |
330 | // If the child window doesn't have PresShell, it means the window is |
331 | // invisible. |
332 | nsIDocShell* docShell = window->GetDocShell(); |
333 | if (!docShell) { |
334 | break; |
335 | } |
336 | if (!docShell->GetPresShell()) { |
337 | break; |
338 | } |
339 | } |
340 | |
341 | NS_IF_ADDREF(*aFocusedWindow)ns_if_addref(*aFocusedWindow); |
342 | |
343 | return currentElement; |
344 | } |
345 | |
346 | // static |
347 | InputContextAction::Cause nsFocusManager::GetFocusMoveActionCause( |
348 | uint32_t aFlags) { |
349 | if (aFlags & nsIFocusManager::FLAG_BYTOUCH) { |
350 | return InputContextAction::CAUSE_TOUCH; |
351 | } else if (aFlags & nsIFocusManager::FLAG_BYMOUSE) { |
352 | return InputContextAction::CAUSE_MOUSE; |
353 | } else if (aFlags & nsIFocusManager::FLAG_BYKEY) { |
354 | return InputContextAction::CAUSE_KEY; |
355 | } else if (aFlags & nsIFocusManager::FLAG_BYLONGPRESS) { |
356 | return InputContextAction::CAUSE_LONGPRESS; |
357 | } |
358 | return InputContextAction::CAUSE_UNKNOWN; |
359 | } |
360 | |
361 | NS_IMETHODIMPnsresult |
362 | nsFocusManager::GetActiveWindow(mozIDOMWindowProxy** aWindow) { |
363 | 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()" " (" "Must not be called outside the parent process." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 364); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ") (" "Must not be called outside the parent process." ")"); do { *((volatile int*)__null) = 364; __attribute__((nomerge) ) ::abort(); } while (false); } } while (false) |
364 | "Must not be called outside the parent process.")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()" " (" "Must not be called outside the parent process." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 364); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ") (" "Must not be called outside the parent process." ")"); do { *((volatile int*)__null) = 364; __attribute__((nomerge) ) ::abort(); } while (false); } } while (false); |
365 | NS_IF_ADDREF(*aWindow = mActiveWindow)ns_if_addref(*aWindow = mActiveWindow); |
366 | return NS_OK; |
367 | } |
368 | |
369 | NS_IMETHODIMPnsresult |
370 | nsFocusManager::GetActiveBrowsingContext(BrowsingContext** aBrowsingContext) { |
371 | NS_IF_ADDREF(*aBrowsingContext = GetActiveBrowsingContext())ns_if_addref(*aBrowsingContext = GetActiveBrowsingContext()); |
372 | return NS_OK; |
373 | } |
374 | |
375 | void nsFocusManager::FocusWindow(nsPIDOMWindowOuter* aWindow, |
376 | CallerType aCallerType) { |
377 | if (RefPtr<nsFocusManager> fm = sInstance) { |
378 | fm->SetFocusedWindowWithCallerType(aWindow, aCallerType); |
379 | } |
380 | } |
381 | |
382 | NS_IMETHODIMPnsresult |
383 | nsFocusManager::GetFocusedWindow(mozIDOMWindowProxy** aFocusedWindow) { |
384 | NS_IF_ADDREF(*aFocusedWindow = mFocusedWindow)ns_if_addref(*aFocusedWindow = mFocusedWindow); |
385 | return NS_OK; |
386 | } |
387 | |
388 | NS_IMETHODIMPnsresult |
389 | nsFocusManager::GetFocusedContentBrowsingContext( |
390 | BrowsingContext** aBrowsingContext) { |
391 | MOZ_DIAGNOSTIC_ASSERT(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()" " (" "We only have use cases for this in the parent process" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 393); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "XRE_IsParentProcess()" ") (" "We only have use cases for this in the parent process" ")"); do { *((volatile int*)__null) = 393; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
392 | 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()" " (" "We only have use cases for this in the parent process" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 393); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "XRE_IsParentProcess()" ") (" "We only have use cases for this in the parent process" ")"); do { *((volatile int*)__null) = 393; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
393 | "We only have use cases for this in the parent process")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()" " (" "We only have use cases for this in the parent process" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 393); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "XRE_IsParentProcess()" ") (" "We only have use cases for this in the parent process" ")"); do { *((volatile int*)__null) = 393; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
394 | NS_IF_ADDREF(*aBrowsingContext = GetFocusedBrowsingContextInChrome())ns_if_addref(*aBrowsingContext = GetFocusedBrowsingContextInChrome ()); |
395 | return NS_OK; |
396 | } |
397 | |
398 | nsresult nsFocusManager::SetFocusedWindowWithCallerType( |
399 | mozIDOMWindowProxy* aWindowToFocus, CallerType aCallerType) { |
400 | LOGFOCUS(("<<SetFocusedWindow begin>>"))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "<<SetFocusedWindow begin>>" ); } } while (0); |
401 | |
402 | nsCOMPtr<nsPIDOMWindowOuter> windowToFocus = |
403 | nsPIDOMWindowOuter::From(aWindowToFocus); |
404 | NS_ENSURE_TRUE(windowToFocus, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(windowToFocus)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "windowToFocus" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 404); return NS_ERROR_FAILURE; } } while (false); |
405 | |
406 | nsCOMPtr<Element> frameElement = windowToFocus->GetFrameElementInternal(); |
407 | Maybe<uint64_t> existingActionId; |
408 | if (frameElement) { |
409 | // pass false for aFocusChanged so that the caret does not get updated |
410 | // and scrolling does not occur. |
411 | existingActionId = SetFocusInner(frameElement, 0, false, true); |
412 | } else if (auto* bc = windowToFocus->GetBrowsingContext(); |
413 | bc && !bc->IsTop()) { |
414 | // No frameElement means windowToFocus is an OOP iframe, so |
415 | // the above SetFocusInner is not called. That means the focus |
416 | // of the currently focused BC is not going to be cleared. So |
417 | // we do that manually here. |
418 | if (RefPtr<BrowsingContext> focusedBC = GetFocusedBrowsingContext()) { |
419 | // If focusedBC is an ancestor of bc, blur will be handled |
420 | // correctly by nsFocusManager::AdjustWindowFocus. |
421 | if (!IsSameOrAncestor(focusedBC, bc)) { |
422 | existingActionId.emplace(sInstance->GenerateFocusActionId()); |
423 | Blur(focusedBC, nullptr, true, true, false, existingActionId.value()); |
424 | } |
425 | } |
426 | } else { |
427 | // this is a top-level window. If the window has a child frame focused, |
428 | // clear the focus. Otherwise, focus should already be in this frame, or |
429 | // already cleared. This ensures that focus will be in this frame and not |
430 | // in a child. |
431 | nsIContent* content = windowToFocus->GetFocusedElement(); |
432 | if (content) { |
433 | if (nsCOMPtr<nsPIDOMWindowOuter> childWindow = GetContentWindow(content)) |
434 | ClearFocus(windowToFocus); |
435 | } |
436 | } |
437 | |
438 | nsCOMPtr<nsPIDOMWindowOuter> rootWindow = windowToFocus->GetPrivateRoot(); |
439 | const uint64_t actionId = existingActionId.isSome() |
440 | ? existingActionId.value() |
441 | : sInstance->GenerateFocusActionId(); |
442 | if (rootWindow) { |
443 | RaiseWindow(rootWindow, aCallerType, actionId); |
444 | } |
445 | |
446 | LOGFOCUS(("<<SetFocusedWindow end actionid: %" PRIu64 ">>", actionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "<<SetFocusedWindow end actionid: %" "l" "u" ">>", actionId); } } while (0); |
447 | |
448 | return NS_OK; |
449 | } |
450 | |
451 | NS_IMETHODIMPnsresult nsFocusManager::SetFocusedWindow( |
452 | mozIDOMWindowProxy* aWindowToFocus) { |
453 | return SetFocusedWindowWithCallerType(aWindowToFocus, CallerType::System); |
454 | } |
455 | |
456 | NS_IMETHODIMPnsresult |
457 | nsFocusManager::GetFocusedElement(Element** aFocusedElement) { |
458 | RefPtr<Element> focusedElement = mFocusedElement; |
459 | focusedElement.forget(aFocusedElement); |
460 | return NS_OK; |
461 | } |
462 | |
463 | uint32_t nsFocusManager::GetLastFocusMethod(nsPIDOMWindowOuter* aWindow) const { |
464 | nsPIDOMWindowOuter* window = aWindow ? aWindow : mFocusedWindow.get(); |
465 | uint32_t method = window ? window->GetFocusMethod() : 0; |
466 | NS_ASSERTION((method & METHOD_MASK) == method, "invalid focus method")do { if (!((method & METHOD_MASK) == method)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "invalid focus method", "(method & METHOD_MASK) == method" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 466); MOZ_PretendNoReturn(); } } while (0); |
467 | return method; |
468 | } |
469 | |
470 | NS_IMETHODIMPnsresult |
471 | nsFocusManager::GetLastFocusMethod(mozIDOMWindowProxy* aWindow, |
472 | uint32_t* aLastFocusMethod) { |
473 | *aLastFocusMethod = GetLastFocusMethod(nsPIDOMWindowOuter::From(aWindow)); |
474 | return NS_OK; |
475 | } |
476 | |
477 | NS_IMETHODIMPnsresult |
478 | nsFocusManager::SetFocus(Element* aElement, uint32_t aFlags) { |
479 | LOGFOCUS(("<<SetFocus begin>>"))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "<<SetFocus begin>>" ); } } while (0); |
480 | |
481 | NS_ENSURE_ARG(aElement)do { if ((__builtin_expect(!!(!(aElement)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aElement" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 481); return NS_ERROR_INVALID_ARG; } } while (false); |
482 | |
483 | SetFocusInner(aElement, aFlags, true, true); |
484 | |
485 | LOGFOCUS(("<<SetFocus end>>"))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "<<SetFocus end>>" ); } } while (0); |
486 | |
487 | return NS_OK; |
488 | } |
489 | |
490 | NS_IMETHODIMPnsresult |
491 | nsFocusManager::ElementIsFocusable(Element* aElement, uint32_t aFlags, |
492 | bool* aIsFocusable) { |
493 | NS_ENSURE_TRUE(aElement, NS_ERROR_INVALID_ARG)do { if ((__builtin_expect(!!(!(aElement)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aElement" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 493); return NS_ERROR_INVALID_ARG; } } while (false); |
494 | *aIsFocusable = !!FlushAndCheckIfFocusable(aElement, aFlags); |
495 | return NS_OK; |
496 | } |
497 | |
498 | MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHODIMPnsresult |
499 | nsFocusManager::MoveFocus(mozIDOMWindowProxy* aWindow, Element* aStartElement, |
500 | uint32_t aType, uint32_t aFlags, Element** aElement) { |
501 | *aElement = nullptr; |
502 | |
503 | LOGFOCUS(("<<MoveFocus begin Type: %d Flags: %x>>", aType, aFlags))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "<<MoveFocus begin Type: %d Flags: %x>>" , aType, aFlags); } } while (0); |
504 | |
505 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0)) && mFocusedWindow) { |
506 | Document* doc = mFocusedWindow->GetExtantDoc(); |
507 | if (doc && doc->GetDocumentURI()) { |
508 | LOGFOCUS((" Focused Window: %p %s", mFocusedWindow.get(),do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Focused Window: %p %s" , mFocusedWindow.get(), doc->GetDocumentURI()->GetSpecOrDefault ().get()); } } while (0) |
509 | doc->GetDocumentURI()->GetSpecOrDefault().get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Focused Window: %p %s" , mFocusedWindow.get(), doc->GetDocumentURI()->GetSpecOrDefault ().get()); } } while (0); |
510 | } |
511 | } |
512 | |
513 | LOGCONTENT(" Current Focus: %s", mFocusedElement.get())if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (mFocusedElement.get()) { mFocusedElement.get()->NodeInfo ()->NameAtom()->ToUTF8String(tag); } do { const ::mozilla ::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect (!!(mozilla::detail::log_test(moz_real_module, LogLevel::Debug )), 0))) { mozilla::detail::log_print(moz_real_module, LogLevel ::Debug, " Current Focus: %s", tag.get()); } } while (0); }; |
514 | |
515 | // use FLAG_BYMOVEFOCUS when switching focus with MoveFocus unless one of |
516 | // the other focus methods is already set, or we're just moving to the root |
517 | // or caret position. |
518 | if (aType != MOVEFOCUS_ROOT && aType != MOVEFOCUS_CARET && |
519 | (aFlags & METHOD_MASK) == 0) { |
520 | aFlags |= FLAG_BYMOVEFOCUS; |
521 | } |
522 | |
523 | nsCOMPtr<nsPIDOMWindowOuter> window; |
524 | if (aStartElement) { |
525 | window = GetCurrentWindow(aStartElement); |
526 | } else { |
527 | window = aWindow ? nsPIDOMWindowOuter::From(aWindow) : mFocusedWindow.get(); |
528 | } |
529 | |
530 | 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/base/nsFocusManager.cpp" , 530); return NS_ERROR_FAILURE; } } while (false); |
531 | |
532 | // Flush to ensure that focusability of descendants is computed correctly. |
533 | if (RefPtr<Document> doc = window->GetExtantDoc()) { |
534 | doc->FlushPendingNotifications(FlushType::EnsurePresShellInitAndFrames); |
535 | } |
536 | |
537 | bool noParentTraversal = aFlags & FLAG_NOPARENTFRAME; |
538 | nsCOMPtr<nsIContent> newFocus; |
539 | nsresult rv = DetermineElementToMoveFocus(window, aStartElement, aType, |
540 | noParentTraversal, true, |
541 | getter_AddRefs(newFocus)); |
542 | if (rv == NS_SUCCESS_DOM_NO_OPERATION) { |
543 | return NS_OK; |
544 | } |
545 | |
546 | 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/base/nsFocusManager.cpp" , 546); return rv; } } while (false); |
547 | |
548 | LOGCONTENTNAVIGATION("Element to be focused: %s", newFocus.get())if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusNavigationLog , LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (newFocus.get()) { newFocus.get()->NodeInfo()->NameAtom ()->ToUTF8String(tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog; if ((__builtin_expect(!!(mozilla::detail ::log_test(moz_real_module, LogLevel::Debug)), 0))) { mozilla ::detail::log_print(moz_real_module, LogLevel::Debug, "Element to be focused: %s" , tag.get()); } } while (0); }; |
549 | |
550 | if (newFocus && newFocus->IsElement()) { |
551 | // for caret movement, pass false for the aFocusChanged argument, |
552 | // otherwise the caret will end up moving to the focus position. This |
553 | // would be a problem because the caret would move to the beginning of the |
554 | // focused link making it impossible to navigate the caret over a link. |
555 | SetFocusInner(MOZ_KnownLive(newFocus->AsElement())(newFocus->AsElement()), aFlags, |
556 | aType != MOVEFOCUS_CARET, true); |
557 | *aElement = do_AddRef(newFocus->AsElement()).take(); |
558 | } else if (aType == MOVEFOCUS_ROOT || aType == MOVEFOCUS_CARET) { |
559 | // no content was found, so clear the focus for these two types. |
560 | ClearFocus(window); |
561 | } |
562 | |
563 | LOGFOCUS(("<<MoveFocus end>>"))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "<<MoveFocus end>>" ); } } while (0); |
564 | |
565 | return NS_OK; |
566 | } |
567 | |
568 | NS_IMETHODIMPnsresult |
569 | nsFocusManager::ClearFocus(mozIDOMWindowProxy* aWindow) { |
570 | LOGFOCUS(("<<ClearFocus begin>>"))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "<<ClearFocus begin>>" ); } } while (0); |
571 | |
572 | // if the window to clear is the focused window or an ancestor of the |
573 | // focused window, then blur the existing focused content. Otherwise, the |
574 | // focus is somewhere else so just update the current node. |
575 | NS_ENSURE_TRUE(aWindow, NS_ERROR_INVALID_ARG)do { if ((__builtin_expect(!!(!(aWindow)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aWindow" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 575); return NS_ERROR_INVALID_ARG; } } while (false); |
576 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
577 | |
578 | if (IsSameOrAncestor(window, GetFocusedBrowsingContext())) { |
579 | RefPtr<BrowsingContext> bc = window->GetBrowsingContext(); |
580 | bool isAncestor = (GetFocusedBrowsingContext() != bc); |
581 | uint64_t actionId = GenerateFocusActionId(); |
582 | if (Blur(bc, nullptr, isAncestor, true, false, actionId)) { |
583 | // if we are clearing the focus on an ancestor of the focused window, |
584 | // the ancestor will become the new focused window, so focus it |
585 | if (isAncestor) { |
586 | Focus(window, nullptr, 0, true, false, false, true, actionId); |
587 | } |
588 | } |
589 | } else { |
590 | window->SetFocusedElement(nullptr); |
591 | } |
592 | |
593 | LOGFOCUS(("<<ClearFocus end>>"))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "<<ClearFocus end>>" ); } } while (0); |
594 | |
595 | return NS_OK; |
596 | } |
597 | |
598 | NS_IMETHODIMPnsresult |
599 | nsFocusManager::GetFocusedElementForWindow(mozIDOMWindowProxy* aWindow, |
600 | bool aDeep, |
601 | mozIDOMWindowProxy** aFocusedWindow, |
602 | Element** aElement) { |
603 | *aElement = nullptr; |
604 | if (aFocusedWindow) { |
605 | *aFocusedWindow = nullptr; |
606 | } |
607 | |
608 | NS_ENSURE_TRUE(aWindow, NS_ERROR_INVALID_ARG)do { if ((__builtin_expect(!!(!(aWindow)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aWindow" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 608); return NS_ERROR_INVALID_ARG; } } while (false); |
609 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
610 | |
611 | nsCOMPtr<nsPIDOMWindowOuter> focusedWindow; |
612 | RefPtr<Element> focusedElement = |
613 | GetFocusedDescendant(window, |
614 | aDeep ? nsFocusManager::eIncludeAllDescendants |
615 | : nsFocusManager::eOnlyCurrentWindow, |
616 | getter_AddRefs(focusedWindow)); |
617 | |
618 | focusedElement.forget(aElement); |
619 | |
620 | if (aFocusedWindow) { |
621 | NS_IF_ADDREF(*aFocusedWindow = focusedWindow)ns_if_addref(*aFocusedWindow = focusedWindow); |
622 | } |
623 | |
624 | return NS_OK; |
625 | } |
626 | |
627 | NS_IMETHODIMPnsresult |
628 | nsFocusManager::MoveCaretToFocus(mozIDOMWindowProxy* aWindow) { |
629 | nsCOMPtr<nsIWebNavigation> webnav = do_GetInterface(aWindow); |
630 | nsCOMPtr<nsIDocShellTreeItem> dsti = do_QueryInterface(webnav); |
631 | if (dsti) { |
632 | if (dsti->ItemType() != nsIDocShellTreeItem::typeChrome) { |
633 | nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(dsti); |
634 | NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(docShell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "docShell" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 634); return NS_ERROR_FAILURE; } } while (false); |
635 | |
636 | // don't move the caret for editable documents |
637 | bool isEditable; |
638 | docShell->GetEditable(&isEditable); |
639 | if (isEditable) { |
640 | return NS_OK; |
641 | } |
642 | |
643 | RefPtr<PresShell> presShell = docShell->GetPresShell(); |
644 | NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE)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/base/nsFocusManager.cpp" , 644); return NS_ERROR_FAILURE; } } while (false); |
645 | |
646 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
647 | if (RefPtr<Element> focusedElement = window->GetFocusedElement()) { |
648 | MoveCaretToFocus(presShell, focusedElement); |
649 | } |
650 | } |
651 | } |
652 | |
653 | return NS_OK; |
654 | } |
655 | |
656 | void nsFocusManager::WindowRaised(mozIDOMWindowProxy* aWindow, |
657 | uint64_t aActionId) { |
658 | if (!aWindow) { |
659 | return; |
660 | } |
661 | |
662 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
663 | BrowsingContext* bc = window->GetBrowsingContext(); |
664 | |
665 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0))) { |
666 | LOGFOCUS(("Window %p Raised [Currently: %p %p] actionid: %" PRIu64, aWindow,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Window %p Raised [Currently: %p %p] actionid: %" "l" "u", aWindow, mActiveWindow.get(), mFocusedWindow.get(), aActionId); } } while (0) |
667 | mActiveWindow.get(), mFocusedWindow.get(), aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Window %p Raised [Currently: %p %p] actionid: %" "l" "u", aWindow, mActiveWindow.get(), mFocusedWindow.get(), aActionId); } } while (0); |
668 | Document* doc = window->GetExtantDoc(); |
669 | if (doc && doc->GetDocumentURI()) { |
670 | LOGFOCUS((" Raised Window: %p %s", aWindow,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Raised Window: %p %s" , aWindow, doc->GetDocumentURI()->GetSpecOrDefault().get ()); } } while (0) |
671 | doc->GetDocumentURI()->GetSpecOrDefault().get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Raised Window: %p %s" , aWindow, doc->GetDocumentURI()->GetSpecOrDefault().get ()); } } while (0); |
672 | } |
673 | if (mActiveWindow) { |
674 | doc = mActiveWindow->GetExtantDoc(); |
675 | if (doc && doc->GetDocumentURI()) { |
676 | LOGFOCUS((" Active Window: %p %s", mActiveWindow.get(),do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Active Window: %p %s" , mActiveWindow.get(), doc->GetDocumentURI()->GetSpecOrDefault ().get()); } } while (0) |
677 | doc->GetDocumentURI()->GetSpecOrDefault().get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Active Window: %p %s" , mActiveWindow.get(), doc->GetDocumentURI()->GetSpecOrDefault ().get()); } } while (0); |
678 | } |
679 | } |
680 | } |
681 | |
682 | if (XRE_IsParentProcess()) { |
683 | if (mActiveWindow == window) { |
684 | // The window is already active, so there is no need to focus anything, |
685 | // but make sure that the right widget is focused. This is a special case |
686 | // for Windows because when restoring a minimized window, a second |
687 | // activation will occur and the top-level widget could be focused instead |
688 | // of the child we want. We solve this by calling SetFocus to ensure that |
689 | // what the focus manager thinks should be the current widget is actually |
690 | // focused. |
691 | EnsureCurrentWidgetFocused(CallerType::System); |
692 | return; |
693 | } |
694 | |
695 | // lower the existing window, if any. This shouldn't happen usually. |
696 | if (nsCOMPtr<nsPIDOMWindowOuter> activeWindow = mActiveWindow) { |
697 | WindowLowered(activeWindow, aActionId); |
698 | } |
699 | } else if (bc->IsTop()) { |
700 | BrowsingContext* active = GetActiveBrowsingContext(); |
701 | if (active == bc && !mActiveBrowsingContextInContentSetFromOtherProcess) { |
702 | // EnsureCurrentWidgetFocused() should not be necessary with |
703 | // PuppetWidget. |
704 | return; |
705 | } |
706 | |
707 | if (active && active != bc) { |
708 | if (active->IsInProcess()) { |
709 | nsCOMPtr<nsPIDOMWindowOuter> activeWindow = active->GetDOMWindow(); |
710 | WindowLowered(activeWindow, aActionId); |
711 | } |
712 | // No else, because trying to lower other-process windows |
713 | // from here can result in the BrowsingContext no longer |
714 | // existing in the parent process by the time it deserializes |
715 | // the IPC message. |
716 | } |
717 | } |
718 | |
719 | nsCOMPtr<nsIDocShellTreeItem> docShellAsItem = window->GetDocShell(); |
720 | // If there's no docShellAsItem, this window must have been closed, |
721 | // in that case there is no tree owner. |
722 | if (!docShellAsItem) { |
723 | return; |
724 | } |
725 | |
726 | // set this as the active window |
727 | if (XRE_IsParentProcess()) { |
728 | mActiveWindow = window; |
729 | } else if (bc->IsTop()) { |
730 | SetActiveBrowsingContextInContent(bc, aActionId); |
731 | } |
732 | |
733 | // ensure that the window is enabled and visible |
734 | nsCOMPtr<nsIDocShellTreeOwner> treeOwner; |
735 | docShellAsItem->GetTreeOwner(getter_AddRefs(treeOwner)); |
736 | nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(treeOwner); |
737 | if (baseWindow) { |
738 | bool isEnabled = true; |
739 | if (NS_SUCCEEDED(baseWindow->GetEnabled(&isEnabled))((bool)(__builtin_expect(!!(!NS_FAILED_impl(baseWindow->GetEnabled (&isEnabled))), 1))) && !isEnabled) { |
740 | return; |
741 | } |
742 | |
743 | baseWindow->SetVisibility(true); |
744 | } |
745 | |
746 | if (XRE_IsParentProcess()) { |
747 | // Unsetting top-level focus upon lowering was inhibited to accommodate |
748 | // ATOK, so we need to do it here. |
749 | BrowserParent::UnsetTopLevelWebFocusAll(); |
750 | ActivateOrDeactivate(window, true); |
751 | } |
752 | |
753 | // retrieve the last focused element within the window that was raised |
754 | nsCOMPtr<nsPIDOMWindowOuter> currentWindow; |
755 | RefPtr<Element> currentFocus = GetFocusedDescendant( |
756 | window, eIncludeAllDescendants, getter_AddRefs(currentWindow)); |
757 | |
758 | NS_ASSERTION(currentWindow, "window raised with no window current")do { if (!(currentWindow)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "window raised with no window current", "currentWindow", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 758); MOZ_PretendNoReturn(); } } while (0); |
759 | if (!currentWindow) { |
760 | return; |
761 | } |
762 | |
763 | nsCOMPtr<nsIAppWindow> appWin(do_GetInterface(baseWindow)); |
764 | // We use mFocusedWindow here is basically for the case that iframe navigate |
765 | // from a.com to b.com for example, so it ends up being loaded in a different |
766 | // process after Fission, but |
767 | // currentWindow->GetBrowsingContext() == GetFocusedBrowsingContext() would |
768 | // still be true because focused browsing context is synced, and we won't |
769 | // fire a focus event while focusing if we use it as condition. |
770 | Focus(currentWindow, currentFocus, 0, currentWindow != mFocusedWindow, false, |
771 | appWin != nullptr, true, aActionId); |
772 | } |
773 | |
774 | void nsFocusManager::WindowLowered(mozIDOMWindowProxy* aWindow, |
775 | uint64_t aActionId) { |
776 | if (!aWindow) { |
777 | return; |
778 | } |
779 | |
780 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
781 | |
782 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0))) { |
783 | LOGFOCUS(("Window %p Lowered [Currently: %p %p]", aWindow,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Window %p Lowered [Currently: %p %p]" , aWindow, mActiveWindow.get(), mFocusedWindow.get()); } } while (0) |
784 | mActiveWindow.get(), mFocusedWindow.get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Window %p Lowered [Currently: %p %p]" , aWindow, mActiveWindow.get(), mFocusedWindow.get()); } } while (0); |
785 | Document* doc = window->GetExtantDoc(); |
786 | if (doc && doc->GetDocumentURI()) { |
787 | LOGFOCUS((" Lowered Window: %s",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Lowered Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0) |
788 | doc->GetDocumentURI()->GetSpecOrDefault().get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Lowered Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0); |
789 | } |
790 | if (mActiveWindow) { |
791 | doc = mActiveWindow->GetExtantDoc(); |
792 | if (doc && doc->GetDocumentURI()) { |
793 | LOGFOCUS((" Active Window: %s",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Active Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0) |
794 | doc->GetDocumentURI()->GetSpecOrDefault().get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Active Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0); |
795 | } |
796 | } |
797 | } |
798 | |
799 | if (XRE_IsParentProcess()) { |
800 | if (mActiveWindow != window) { |
801 | return; |
802 | } |
803 | } else { |
804 | BrowsingContext* bc = window->GetBrowsingContext(); |
805 | BrowsingContext* active = GetActiveBrowsingContext(); |
806 | if (active != bc->Top()) { |
807 | return; |
808 | } |
809 | } |
810 | |
811 | // clear the mouse capture as the active window has changed |
812 | PresShell::ReleaseCapturingContent(); |
813 | |
814 | // In addition, reset the drag state to ensure that we are no longer in |
815 | // drag-select mode. |
816 | if (mFocusedWindow) { |
817 | nsCOMPtr<nsIDocShell> docShell = mFocusedWindow->GetDocShell(); |
818 | if (docShell) { |
819 | if (PresShell* presShell = docShell->GetPresShell()) { |
820 | RefPtr<nsFrameSelection> frameSelection = presShell->FrameSelection(); |
821 | frameSelection->SetDragState(false); |
822 | } |
823 | } |
824 | } |
825 | |
826 | if (XRE_IsParentProcess()) { |
827 | ActivateOrDeactivate(window, false); |
828 | } |
829 | |
830 | // keep track of the window being lowered, so that attempts to raise the |
831 | // window can be prevented until we return. Otherwise, focus can get into |
832 | // an unusual state. |
833 | mWindowBeingLowered = window; |
834 | if (XRE_IsParentProcess()) { |
835 | mActiveWindow = nullptr; |
836 | } else { |
837 | BrowsingContext* bc = window->GetBrowsingContext(); |
838 | if (bc == bc->Top()) { |
839 | SetActiveBrowsingContextInContent(nullptr, aActionId); |
840 | } |
841 | } |
842 | |
843 | if (mFocusedWindow) { |
844 | Blur(nullptr, nullptr, true, true, false, aActionId); |
845 | } |
846 | |
847 | mWindowBeingLowered = nullptr; |
848 | } |
849 | |
850 | nsresult nsFocusManager::ContentRemoved(Document* aDocument, |
851 | nsIContent* aContent) { |
852 | NS_ENSURE_ARG(aDocument)do { if ((__builtin_expect(!!(!(aDocument)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aDocument" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 852); return NS_ERROR_INVALID_ARG; } } while (false); |
853 | NS_ENSURE_ARG(aContent)do { if ((__builtin_expect(!!(!(aContent)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aContent" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 853); return NS_ERROR_INVALID_ARG; } } while (false); |
854 | |
855 | nsPIDOMWindowOuter* windowPtr = aDocument->GetWindow(); |
856 | if (!windowPtr) { |
857 | return NS_OK; |
858 | } |
859 | |
860 | // if the content is currently focused in the window, or is an |
861 | // shadow-including inclusive ancestor of the currently focused element, |
862 | // reset the focus within that window. |
863 | Element* previousFocusedElementPtr = windowPtr->GetFocusedElement(); |
864 | if (!previousFocusedElementPtr) { |
865 | return NS_OK; |
866 | } |
867 | |
868 | if (!nsContentUtils::ContentIsHostIncludingDescendantOf( |
869 | previousFocusedElementPtr, aContent)) { |
870 | return NS_OK; |
871 | } |
872 | |
873 | RefPtr<nsPIDOMWindowOuter> window = windowPtr; |
874 | RefPtr<Element> previousFocusedElement = previousFocusedElementPtr; |
875 | |
876 | RefPtr<Element> newFocusedElement = [&]() -> Element* { |
877 | if (auto* sr = ShadowRoot::FromNode(aContent)) { |
878 | if (sr->IsUAWidget() && sr->Host()->IsHTMLElement(nsGkAtoms::input)) { |
879 | return sr->Host(); |
880 | } |
881 | } |
882 | return nullptr; |
883 | }(); |
884 | |
885 | window->SetFocusedElement(newFocusedElement); |
886 | |
887 | // if this window is currently focused, clear the global focused |
888 | // element as well, but don't fire any events. |
889 | if (window->GetBrowsingContext() == GetFocusedBrowsingContext()) { |
890 | mFocusedElement = newFocusedElement; |
891 | } else if (Document* subdoc = |
892 | aDocument->GetSubDocumentFor(previousFocusedElement)) { |
893 | // Check if the node that was focused is an iframe or similar by looking if |
894 | // it has a subdocument. This would indicate that this focused iframe |
895 | // and its descendants will be going away. We will need to move the focus |
896 | // somewhere else, so just clear the focus in the toplevel window so that no |
897 | // element is focused. |
898 | // |
899 | // The Fission case is handled in FlushAndCheckIfFocusable(). |
900 | if (nsCOMPtr<nsIDocShell> docShell = subdoc->GetDocShell()) { |
901 | nsCOMPtr<nsPIDOMWindowOuter> childWindow = docShell->GetWindow(); |
902 | if (childWindow && |
903 | IsSameOrAncestor(childWindow, GetFocusedBrowsingContext())) { |
904 | if (XRE_IsParentProcess()) { |
905 | nsCOMPtr<nsPIDOMWindowOuter> activeWindow = mActiveWindow; |
906 | ClearFocus(activeWindow); |
907 | } else { |
908 | BrowsingContext* active = GetActiveBrowsingContext(); |
909 | if (active) { |
910 | if (active->IsInProcess()) { |
911 | nsCOMPtr<nsPIDOMWindowOuter> activeWindow = |
912 | active->GetDOMWindow(); |
913 | ClearFocus(activeWindow); |
914 | } else { |
915 | mozilla::dom::ContentChild* contentChild = |
916 | mozilla::dom::ContentChild::GetSingleton(); |
917 | MOZ_ASSERT(contentChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("contentChild", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 917); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 917; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
918 | contentChild->SendClearFocus(active); |
919 | } |
920 | } // no else, because ClearFocus does nothing with nullptr |
921 | } |
922 | } |
923 | } |
924 | } |
925 | |
926 | // Notify the editor in case we removed its ancestor limiter. |
927 | if (previousFocusedElement->IsEditable()) { |
928 | if (nsCOMPtr<nsIDocShell> docShell = aDocument->GetDocShell()) { |
929 | if (RefPtr<HTMLEditor> htmlEditor = docShell->GetHTMLEditor()) { |
930 | RefPtr<Selection> selection = htmlEditor->GetSelection(); |
931 | if (selection && selection->GetFrameSelection() && |
932 | previousFocusedElement == |
933 | selection->GetFrameSelection()->GetAncestorLimiter()) { |
934 | htmlEditor->FinalizeSelection(); |
935 | } |
936 | } |
937 | } |
938 | } |
939 | |
940 | if (!newFocusedElement) { |
941 | NotifyFocusStateChange(previousFocusedElement, newFocusedElement, 0, |
942 | /* aGettingFocus = */ false, false); |
943 | } else { |
944 | // We should already have the right state, which is managed by the <input> |
945 | // widget. |
946 | MOZ_ASSERT(newFocusedElement->State().HasState(ElementState::FOCUS))do { static_assert( mozilla::detail::AssertionConditionType< decltype(newFocusedElement->State().HasState(ElementState:: FOCUS))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(newFocusedElement->State().HasState(ElementState:: FOCUS)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("newFocusedElement->State().HasState(ElementState::FOCUS)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 946); AnnotateMozCrashReason("MOZ_ASSERT" "(" "newFocusedElement->State().HasState(ElementState::FOCUS)" ")"); do { *((volatile int*)__null) = 946; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
947 | } |
948 | |
949 | // If we changed focused element and the element still has focus, let's |
950 | // notify IME of focus. Note that if new focus move has already occurred |
951 | // by running script, we should not let IMEStateManager of outdated focus |
952 | // change. |
953 | if (mFocusedElement == newFocusedElement && mFocusedWindow == window) { |
954 | RefPtr<nsPresContext> presContext(aDocument->GetPresContext()); |
955 | IMEStateManager::OnChangeFocus(presContext, newFocusedElement, |
956 | InputContextAction::Cause::CAUSE_UNKNOWN); |
957 | } |
958 | |
959 | return NS_OK; |
960 | } |
961 | |
962 | void nsFocusManager::WindowShown(mozIDOMWindowProxy* aWindow, |
963 | bool aNeedsFocus) { |
964 | if (!aWindow) { |
965 | return; |
966 | } |
967 | |
968 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
969 | |
970 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0))) { |
971 | LOGFOCUS(("Window %p Shown [Currently: %p %p]", window.get(),do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Window %p Shown [Currently: %p %p]" , window.get(), mActiveWindow.get(), mFocusedWindow.get()); } } while (0) |
972 | mActiveWindow.get(), mFocusedWindow.get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Window %p Shown [Currently: %p %p]" , window.get(), mActiveWindow.get(), mFocusedWindow.get()); } } while (0); |
973 | Document* doc = window->GetExtantDoc(); |
974 | if (doc && doc->GetDocumentURI()) { |
975 | LOGFOCUS(("Shown Window: %s",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Shown Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0) |
976 | doc->GetDocumentURI()->GetSpecOrDefault().get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Shown Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0); |
977 | } |
978 | |
979 | if (mFocusedWindow) { |
980 | doc = mFocusedWindow->GetExtantDoc(); |
981 | if (doc && doc->GetDocumentURI()) { |
982 | LOGFOCUS((" Focused Window: %s",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Focused Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0) |
983 | doc->GetDocumentURI()->GetSpecOrDefault().get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Focused Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0); |
984 | } |
985 | } |
986 | } |
987 | |
988 | if (XRE_IsParentProcess()) { |
989 | if (BrowsingContext* bc = window->GetBrowsingContext()) { |
990 | if (bc->IsTop()) { |
991 | bc->SetIsActiveBrowserWindow(bc->GetIsActiveBrowserWindow()); |
992 | } |
993 | } |
994 | } |
995 | |
996 | if (XRE_IsParentProcess()) { |
997 | if (mFocusedWindow != window) { |
998 | return; |
999 | } |
1000 | } else { |
1001 | BrowsingContext* bc = window->GetBrowsingContext(); |
1002 | if (!bc || mFocusedBrowsingContextInContent != bc) { |
1003 | return; |
1004 | } |
1005 | // Sync the window for a newly-created OOP iframe |
1006 | // Set actionId to zero to signify that it should be ignored. |
1007 | SetFocusedWindowInternal(window, 0, false); |
1008 | } |
1009 | |
1010 | if (aNeedsFocus) { |
1011 | nsCOMPtr<nsPIDOMWindowOuter> currentWindow; |
1012 | RefPtr<Element> currentFocus = GetFocusedDescendant( |
1013 | window, eIncludeAllDescendants, getter_AddRefs(currentWindow)); |
1014 | |
1015 | if (currentWindow) { |
1016 | Focus(currentWindow, currentFocus, 0, true, false, false, true, |
1017 | GenerateFocusActionId()); |
1018 | } |
1019 | } else { |
1020 | // Sometimes, an element in a window can be focused before the window is |
1021 | // visible, which would mean that the widget may not be properly focused. |
1022 | // When the window becomes visible, make sure the right widget is focused. |
1023 | EnsureCurrentWidgetFocused(CallerType::System); |
1024 | } |
1025 | } |
1026 | |
1027 | void nsFocusManager::WindowHidden(mozIDOMWindowProxy* aWindow, |
1028 | uint64_t aActionId) { |
1029 | // if there is no window or it is not the same or an ancestor of the |
1030 | // currently focused window, just return, as the current focus will not |
1031 | // be affected. |
1032 | |
1033 | if (!aWindow) { |
1034 | return; |
1035 | } |
1036 | |
1037 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
1038 | |
1039 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0))) { |
1040 | LOGFOCUS(("Window %p Hidden [Currently: %p %p] actionid: %" PRIu64,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Window %p Hidden [Currently: %p %p] actionid: %" "l" "u", window.get(), mActiveWindow.get(), mFocusedWindow.get (), aActionId); } } while (0) |
1041 | window.get(), mActiveWindow.get(), mFocusedWindow.get(),do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Window %p Hidden [Currently: %p %p] actionid: %" "l" "u", window.get(), mActiveWindow.get(), mFocusedWindow.get (), aActionId); } } while (0) |
1042 | aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Window %p Hidden [Currently: %p %p] actionid: %" "l" "u", window.get(), mActiveWindow.get(), mFocusedWindow.get (), aActionId); } } while (0); |
1043 | nsAutoCString spec; |
1044 | Document* doc = window->GetExtantDoc(); |
1045 | if (doc && doc->GetDocumentURI()) { |
1046 | LOGFOCUS((" Hide Window: %s",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Hide Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0) |
1047 | doc->GetDocumentURI()->GetSpecOrDefault().get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Hide Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0); |
1048 | } |
1049 | |
1050 | if (mFocusedWindow) { |
1051 | doc = mFocusedWindow->GetExtantDoc(); |
1052 | if (doc && doc->GetDocumentURI()) { |
1053 | LOGFOCUS((" Focused Window: %s",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Focused Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0) |
1054 | doc->GetDocumentURI()->GetSpecOrDefault().get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Focused Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0); |
1055 | } |
1056 | } |
1057 | |
1058 | if (mActiveWindow) { |
1059 | doc = mActiveWindow->GetExtantDoc(); |
1060 | if (doc && doc->GetDocumentURI()) { |
1061 | LOGFOCUS((" Active Window: %s",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Active Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0) |
1062 | doc->GetDocumentURI()->GetSpecOrDefault().get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Active Window: %s" , doc->GetDocumentURI()->GetSpecOrDefault().get()); } } while (0); |
1063 | } |
1064 | } |
1065 | } |
1066 | |
1067 | if (!IsSameOrAncestor(window, mFocusedWindow)) { |
1068 | return; |
1069 | } |
1070 | |
1071 | // at this point, we know that the window being hidden is either the focused |
1072 | // window, or an ancestor of the focused window. Either way, the focus is no |
1073 | // longer valid, so it needs to be updated. |
1074 | |
1075 | const RefPtr<Element> oldFocusedElement = std::move(mFocusedElement); |
1076 | |
1077 | nsCOMPtr<nsIDocShell> focusedDocShell = mFocusedWindow->GetDocShell(); |
1078 | if (!focusedDocShell) { |
1079 | return; |
1080 | } |
1081 | |
1082 | const RefPtr<PresShell> presShell = focusedDocShell->GetPresShell(); |
1083 | |
1084 | if (oldFocusedElement && oldFocusedElement->IsInComposedDoc()) { |
1085 | NotifyFocusStateChange(oldFocusedElement, nullptr, 0, false, false); |
1086 | window->UpdateCommands(u"focus"_ns); |
1087 | |
1088 | if (presShell) { |
1089 | RefPtr<Document> composedDoc = oldFocusedElement->GetComposedDoc(); |
1090 | SendFocusOrBlurEvent(eBlur, presShell, composedDoc, oldFocusedElement, |
1091 | false); |
1092 | } |
1093 | } |
1094 | |
1095 | const RefPtr<nsPresContext> focusedPresContext = |
1096 | presShell ? presShell->GetPresContext() : nullptr; |
1097 | IMEStateManager::OnChangeFocus(focusedPresContext, nullptr, |
1098 | GetFocusMoveActionCause(0)); |
1099 | if (presShell) { |
1100 | SetCaretVisible(presShell, false, nullptr); |
1101 | } |
1102 | |
1103 | // If a window is being "hidden" because its BrowsingContext is changing |
1104 | // remoteness, we don't want to handle docshell destruction by moving focus. |
1105 | // Instead, the focused browsing context should stay the way it is (so that |
1106 | // the newly "shown" window in the other process knows to take focus) and |
1107 | // we should just null out the process-local field. |
1108 | nsCOMPtr<nsIDocShell> docShellBeingHidden = window->GetDocShell(); |
1109 | // Check if we're currently hiding a non-remote nsDocShell due to its |
1110 | // BrowsingContext navigating to become remote. Normally, when a focused |
1111 | // subframe is hidden, focus is moved to the frame element, but focus should |
1112 | // stay with the BrowsingContext when performing a process switch. We don't |
1113 | // need to consider process switches where the hiding docshell is already |
1114 | // remote (ie. GetEmbedderElement is nullptr), as shifting remoteness to the |
1115 | // frame element is handled elsewhere. |
1116 | if (docShellBeingHidden && |
1117 | nsDocShell::Cast(docShellBeingHidden)->WillChangeProcess() && |
1118 | docShellBeingHidden->GetBrowsingContext()->GetEmbedderElement()) { |
1119 | if (mFocusedWindow != window) { |
1120 | // The window being hidden is an ancestor of the focused window. |
1121 | #ifdef DEBUG1 |
1122 | BrowsingContext* ancestor = window->GetBrowsingContext(); |
1123 | BrowsingContext* bc = mFocusedWindow->GetBrowsingContext(); |
1124 | for (;;) { |
1125 | if (!bc) { |
1126 | MOZ_ASSERT(false, "Should have found ancestor")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "Should have found ancestor" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1126); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "Should have found ancestor" ")"); do { *((volatile int*)__null ) = 1126; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
1127 | } |
1128 | bc = bc->GetParent(); |
1129 | if (ancestor == bc) { |
1130 | break; |
1131 | } |
1132 | } |
1133 | #endif |
1134 | // This call adjusts the focused browsing context and window. |
1135 | // The latter gets nulled out immediately below. |
1136 | SetFocusedWindowInternal(window, aActionId); |
1137 | } |
1138 | mFocusedWindow = nullptr; |
1139 | window->SetFocusedElement(nullptr); |
1140 | return; |
1141 | } |
1142 | |
1143 | // if the docshell being hidden is being destroyed, then we want to move |
1144 | // focus somewhere else. Call ClearFocus on the toplevel window, which |
1145 | // will have the effect of clearing the focus and moving the focused window |
1146 | // to the toplevel window. But if the window isn't being destroyed, we are |
1147 | // likely just loading a new document in it, so we want to maintain the |
1148 | // focused window so that the new document gets properly focused. |
1149 | bool beingDestroyed = !docShellBeingHidden; |
1150 | if (docShellBeingHidden) { |
1151 | docShellBeingHidden->IsBeingDestroyed(&beingDestroyed); |
1152 | } |
1153 | if (beingDestroyed) { |
1154 | // There is usually no need to do anything if a toplevel window is going |
1155 | // away, as we assume that WindowLowered will be called. However, this may |
1156 | // not happen if nsIAppStartup::eForceQuit is used to quit, and can cause |
1157 | // a leak. So if the active window is being destroyed, call WindowLowered |
1158 | // directly. |
1159 | |
1160 | if (XRE_IsParentProcess()) { |
1161 | nsCOMPtr<nsPIDOMWindowOuter> activeWindow = mActiveWindow; |
1162 | if (activeWindow == mFocusedWindow || activeWindow == window) { |
1163 | WindowLowered(activeWindow, aActionId); |
1164 | } else { |
1165 | ClearFocus(activeWindow); |
1166 | } |
1167 | } else { |
1168 | BrowsingContext* active = GetActiveBrowsingContext(); |
1169 | if (active) { |
1170 | if (nsCOMPtr<nsPIDOMWindowOuter> activeWindow = |
1171 | active->GetDOMWindow()) { |
1172 | if ((mFocusedWindow && |
1173 | mFocusedWindow->GetBrowsingContext() == active) || |
1174 | (window->GetBrowsingContext() == active)) { |
1175 | WindowLowered(activeWindow, aActionId); |
1176 | } else { |
1177 | ClearFocus(activeWindow); |
1178 | } |
1179 | } // else do nothing when an out-of-process iframe is torn down |
1180 | } |
1181 | } |
1182 | return; |
1183 | } |
1184 | |
1185 | if (!XRE_IsParentProcess() && |
1186 | mActiveBrowsingContextInContent == |
1187 | docShellBeingHidden->GetBrowsingContext() && |
1188 | mActiveBrowsingContextInContent->GetIsInBFCache()) { |
1189 | SetActiveBrowsingContextInContent(nullptr, aActionId); |
1190 | } |
1191 | |
1192 | // if the window being hidden is an ancestor of the focused window, adjust |
1193 | // the focused window so that it points to the one being hidden. This |
1194 | // ensures that the focused window isn't in a chain of frames that doesn't |
1195 | // exist any more. |
1196 | if (window != mFocusedWindow) { |
1197 | nsCOMPtr<nsIDocShellTreeItem> dsti = |
1198 | mFocusedWindow ? mFocusedWindow->GetDocShell() : nullptr; |
1199 | if (dsti) { |
1200 | nsCOMPtr<nsIDocShellTreeItem> parentDsti; |
1201 | dsti->GetInProcessParent(getter_AddRefs(parentDsti)); |
1202 | if (parentDsti) { |
1203 | if (nsCOMPtr<nsPIDOMWindowOuter> parentWindow = |
1204 | parentDsti->GetWindow()) { |
1205 | parentWindow->SetFocusedElement(nullptr); |
1206 | } |
1207 | } |
1208 | } |
1209 | |
1210 | SetFocusedWindowInternal(window, aActionId); |
1211 | } |
1212 | } |
1213 | |
1214 | void nsFocusManager::FireDelayedEvents(Document* aDocument) { |
1215 | MOZ_ASSERT(aDocument)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDocument)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDocument))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDocument", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1215); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDocument" ")" ); do { *((volatile int*)__null) = 1215; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
1216 | |
1217 | // fire any delayed focus and blur events in the same order that they were |
1218 | // added |
1219 | for (uint32_t i = 0; i < mDelayedBlurFocusEvents.Length(); i++) { |
1220 | if (mDelayedBlurFocusEvents[i].mDocument == aDocument) { |
1221 | if (!aDocument->GetInnerWindow() || |
1222 | !aDocument->GetInnerWindow()->IsCurrentInnerWindow()) { |
1223 | // If the document was navigated away from or is defunct, don't bother |
1224 | // firing events on it. Note the symmetry between this condition and |
1225 | // the similar one in Document.cpp:FireOrClearDelayedEvents. |
1226 | mDelayedBlurFocusEvents.RemoveElementAt(i); |
1227 | --i; |
1228 | } else if (!aDocument->EventHandlingSuppressed()) { |
1229 | EventMessage message = mDelayedBlurFocusEvents[i].mEventMessage; |
1230 | nsCOMPtr<EventTarget> target = mDelayedBlurFocusEvents[i].mTarget; |
1231 | RefPtr<PresShell> presShell = mDelayedBlurFocusEvents[i].mPresShell; |
1232 | nsCOMPtr<EventTarget> relatedTarget = |
1233 | mDelayedBlurFocusEvents[i].mRelatedTarget; |
1234 | mDelayedBlurFocusEvents.RemoveElementAt(i); |
1235 | |
1236 | FireFocusOrBlurEvent(message, presShell, target, false, false, |
1237 | relatedTarget); |
1238 | --i; |
1239 | } |
1240 | } |
1241 | } |
1242 | } |
1243 | |
1244 | void nsFocusManager::WasNuked(nsPIDOMWindowOuter* aWindow) { |
1245 | MOZ_ASSERT(aWindow, "Expected non-null window.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aWindow)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aWindow))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aWindow" " (" "Expected non-null window." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1245); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aWindow" ") (" "Expected non-null window." ")"); do { *((volatile int*)__null ) = 1245; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
1246 | MOZ_ASSERT(aWindow != mActiveWindow,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aWindow != mActiveWindow)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aWindow != mActiveWindow))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aWindow != mActiveWindow" " (" "How come we're nuking a window that's still active?" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1247); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aWindow != mActiveWindow" ") (" "How come we're nuking a window that's still active?" ")" ); do { *((volatile int*)__null) = 1247; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
1247 | "How come we're nuking a window that's still active?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aWindow != mActiveWindow)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aWindow != mActiveWindow))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aWindow != mActiveWindow" " (" "How come we're nuking a window that's still active?" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1247); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aWindow != mActiveWindow" ") (" "How come we're nuking a window that's still active?" ")" ); do { *((volatile int*)__null) = 1247; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
1248 | if (aWindow == mFocusedWindow) { |
1249 | mFocusedWindow = nullptr; |
1250 | SetFocusedBrowsingContext(nullptr, GenerateFocusActionId()); |
1251 | mFocusedElement = nullptr; |
1252 | } |
1253 | } |
1254 | |
1255 | nsFocusManager::BlurredElementInfo::BlurredElementInfo(Element& aElement) |
1256 | : mElement(aElement) {} |
1257 | |
1258 | nsFocusManager::BlurredElementInfo::~BlurredElementInfo() = default; |
1259 | |
1260 | // https://drafts.csswg.org/selectors-4/#the-focus-visible-pseudo |
1261 | static bool ShouldMatchFocusVisible(nsPIDOMWindowOuter* aWindow, |
1262 | const Element& aElement, |
1263 | int32_t aFocusFlags) { |
1264 | // If we were explicitly requested to show the ring, do it. |
1265 | if (aFocusFlags & nsIFocusManager::FLAG_SHOWRING) { |
1266 | return true; |
1267 | } |
1268 | |
1269 | if (aFocusFlags & nsIFocusManager::FLAG_NOSHOWRING) { |
1270 | return false; |
1271 | } |
1272 | |
1273 | if (aWindow->ShouldShowFocusRing()) { |
1274 | // The window decision also trumps any other heuristic. |
1275 | return true; |
1276 | } |
1277 | |
1278 | // Any element which supports keyboard input (such as an input element, or any |
1279 | // other element which may trigger a virtual keyboard to be shown on focus if |
1280 | // a physical keyboard is not present) should always match :focus-visible when |
1281 | // focused. |
1282 | { |
1283 | if (aElement.IsHTMLElement(nsGkAtoms::textarea) || aElement.IsEditable()) { |
1284 | return true; |
1285 | } |
1286 | |
1287 | if (auto* input = HTMLInputElement::FromNode(aElement)) { |
1288 | if (input->IsSingleLineTextControl()) { |
1289 | return true; |
1290 | } |
1291 | } |
1292 | } |
1293 | |
1294 | switch (nsFocusManager::GetFocusMoveActionCause(aFocusFlags)) { |
1295 | case InputContextAction::CAUSE_KEY: |
1296 | // If the user interacts with the page via the keyboard, the currently |
1297 | // focused element should match :focus-visible (i.e. keyboard usage may |
1298 | // change whether this pseudo-class matches even if it doesn't affect |
1299 | // :focus). |
1300 | return true; |
1301 | case InputContextAction::CAUSE_UNKNOWN: |
1302 | // We render outlines if the last "known" focus method was by key or there |
1303 | // was no previous known focus method, otherwise we don't. |
1304 | return aWindow->UnknownFocusMethodShouldShowOutline(); |
1305 | case InputContextAction::CAUSE_MOUSE: |
1306 | case InputContextAction::CAUSE_TOUCH: |
1307 | case InputContextAction::CAUSE_LONGPRESS: |
1308 | // If the user interacts with the page via a pointing device, such that |
1309 | // the focus is moved to a new element which does not support user input, |
1310 | // the newly focused element should not match :focus-visible. |
1311 | return false; |
1312 | case InputContextAction::CAUSE_UNKNOWN_CHROME: |
1313 | case InputContextAction::CAUSE_UNKNOWN_DURING_KEYBOARD_INPUT: |
1314 | case InputContextAction::CAUSE_UNKNOWN_DURING_NON_KEYBOARD_INPUT: |
1315 | // TODO(emilio): We could return some of these though, looking at |
1316 | // UserActivation. We may want to suppress focus rings for unknown / |
1317 | // programatic focus if the user is interacting with the page but not |
1318 | // during keyboard input, or such. |
1319 | MOZ_ASSERT_UNREACHABLE(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: " "These don't get returned by GetFocusMoveActionCause" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1320); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "These don't get returned by GetFocusMoveActionCause" ")"); do { *((volatile int*)__null) = 1320; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
1320 | "These don't get returned by GetFocusMoveActionCause")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: " "These don't get returned by GetFocusMoveActionCause" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1320); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "These don't get returned by GetFocusMoveActionCause" ")"); do { *((volatile int*)__null) = 1320; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
1321 | break; |
1322 | } |
1323 | return false; |
1324 | } |
1325 | |
1326 | /* static */ |
1327 | void nsFocusManager::NotifyFocusStateChange(Element* aElement, |
1328 | Element* aElementToFocus, |
1329 | int32_t aFlags, bool aGettingFocus, |
1330 | bool aShouldShowFocusRing) { |
1331 | MOZ_ASSERT_IF(aElementToFocus, !aGettingFocus)do { if (aElementToFocus) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(!aGettingFocus)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aGettingFocus))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aGettingFocus", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1331); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aGettingFocus" ")"); do { *((volatile int*)__null) = 1331; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
1332 | nsIContent* commonAncestor = nullptr; |
1333 | if (aElementToFocus) { |
1334 | commonAncestor = nsContentUtils::GetCommonFlattenedTreeAncestor( |
1335 | aElement, aElementToFocus); |
1336 | } |
1337 | |
1338 | if (aGettingFocus) { |
1339 | ElementState stateToAdd = ElementState::FOCUS; |
1340 | if (aShouldShowFocusRing) { |
1341 | stateToAdd |= ElementState::FOCUSRING; |
1342 | } |
1343 | aElement->AddStates(stateToAdd); |
1344 | |
1345 | for (nsIContent* host = aElement->GetContainingShadowHost(); host; |
1346 | host = host->GetContainingShadowHost()) { |
1347 | host->AsElement()->AddStates(ElementState::FOCUS); |
1348 | } |
1349 | } else { |
1350 | constexpr auto kStatesToRemove = |
1351 | ElementState::FOCUS | ElementState::FOCUSRING; |
1352 | aElement->RemoveStates(kStatesToRemove); |
1353 | for (nsIContent* host = aElement->GetContainingShadowHost(); host; |
1354 | host = host->GetContainingShadowHost()) { |
1355 | host->AsElement()->RemoveStates(kStatesToRemove); |
1356 | } |
1357 | } |
1358 | |
1359 | // Special case for <input type="checkbox"> and <input type="radio">. |
1360 | // The other browsers cancel active state when they gets lost focus, but |
1361 | // does not do it for the other elements such as <button> and <a href="...">. |
1362 | // Additionally, they may be activated with <label>, but they will get focus |
1363 | // at `click`, but activated at `mousedown`. Therefore, we need to cancel |
1364 | // active state at moving focus. |
1365 | if (RefPtr<nsPresContext> presContext = |
1366 | aElement->GetPresContext(Element::PresContextFor::eForComposedDoc)) { |
1367 | RefPtr<EventStateManager> esm = presContext->EventStateManager(); |
1368 | auto* activeInputElement = |
1369 | HTMLInputElement::FromNodeOrNull(esm->GetActiveContent()); |
1370 | if (activeInputElement && |
1371 | (activeInputElement->ControlType() == FormControlType::InputCheckbox || |
1372 | activeInputElement->ControlType() == FormControlType::InputRadio) && |
1373 | !activeInputElement->State().HasState(ElementState::FOCUS)) { |
1374 | esm->SetContentState(nullptr, ElementState::ACTIVE); |
1375 | } |
1376 | } |
1377 | |
1378 | for (nsIContent* content = aElement; content && content != commonAncestor; |
1379 | content = content->GetFlattenedTreeParent()) { |
1380 | Element* element = Element::FromNode(content); |
1381 | if (!element) { |
1382 | continue; |
1383 | } |
1384 | |
1385 | if (aGettingFocus) { |
1386 | if (element->State().HasState(ElementState::FOCUS_WITHIN)) { |
1387 | break; |
1388 | } |
1389 | element->AddStates(ElementState::FOCUS_WITHIN); |
1390 | } else { |
1391 | element->RemoveStates(ElementState::FOCUS_WITHIN); |
1392 | } |
1393 | } |
1394 | } |
1395 | |
1396 | // static |
1397 | void nsFocusManager::EnsureCurrentWidgetFocused(CallerType aCallerType) { |
1398 | if (!mFocusedWindow || sTestMode) return; |
1399 | |
1400 | // get the main child widget for the focused window and ensure that the |
1401 | // platform knows that this widget is focused. |
1402 | nsCOMPtr<nsIDocShell> docShell = mFocusedWindow->GetDocShell(); |
1403 | if (!docShell) { |
1404 | return; |
1405 | } |
1406 | RefPtr<PresShell> presShell = docShell->GetPresShell(); |
1407 | if (!presShell) { |
1408 | return; |
1409 | } |
1410 | nsViewManager* vm = presShell->GetViewManager(); |
1411 | if (!vm) { |
1412 | return; |
1413 | } |
1414 | nsCOMPtr<nsIWidget> widget = vm->GetRootWidget(); |
1415 | if (!widget) { |
1416 | return; |
1417 | } |
1418 | widget->SetFocus(nsIWidget::Raise::No, aCallerType); |
1419 | } |
1420 | |
1421 | void nsFocusManager::ActivateOrDeactivate(nsPIDOMWindowOuter* aWindow, |
1422 | bool aActive) { |
1423 | 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/base/nsFocusManager.cpp" , 1423); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 1423; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
1424 | if (!aWindow) { |
1425 | return; |
1426 | } |
1427 | |
1428 | if (BrowsingContext* bc = aWindow->GetBrowsingContext()) { |
1429 | MOZ_ASSERT(bc->IsTop())do { static_assert( mozilla::detail::AssertionConditionType< decltype(bc->IsTop())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(bc->IsTop()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("bc->IsTop()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1429); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bc->IsTop()" ")"); do { *((volatile int*)__null) = 1429; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
1430 | |
1431 | RefPtr<CanonicalBrowsingContext> chromeTop = |
1432 | bc->Canonical()->TopCrossChromeBoundary(); |
1433 | MOZ_ASSERT(bc == chromeTop)do { static_assert( mozilla::detail::AssertionConditionType< decltype(bc == chromeTop)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(bc == chromeTop))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("bc == chromeTop" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1433); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bc == chromeTop" ")"); do { *((volatile int*)__null) = 1433; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
1434 | |
1435 | chromeTop->SetIsActiveBrowserWindow(aActive); |
1436 | chromeTop->CallOnAllTopDescendants( |
1437 | [aActive](CanonicalBrowsingContext* aBrowsingContext) { |
1438 | aBrowsingContext->SetIsActiveBrowserWindow(aActive); |
1439 | return CallState::Continue; |
1440 | }, |
1441 | /* aIncludeNestedBrowsers = */ true); |
1442 | } |
1443 | |
1444 | if (aWindow->GetExtantDoc()) { |
1445 | nsContentUtils::DispatchEventOnlyToChrome( |
1446 | aWindow->GetExtantDoc(), |
1447 | nsGlobalWindowInner::Cast(aWindow->GetCurrentInnerWindow()), |
1448 | aActive ? u"activate"_ns : u"deactivate"_ns, CanBubble::eYes, |
1449 | Cancelable::eYes, nullptr); |
1450 | } |
1451 | } |
1452 | |
1453 | // Retrieves innerWindowId of the window of the last focused element to |
1454 | // log a warning to the website console. |
1455 | void LogWarningFullscreenWindowRaise(Element* aElement) { |
1456 | nsCOMPtr<nsFrameLoaderOwner> frameLoaderOwner(do_QueryInterface(aElement)); |
1457 | NS_ENSURE_TRUE_VOID(frameLoaderOwner)do { if ((__builtin_expect(!!(!(frameLoaderOwner)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "frameLoaderOwner" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1457); return; } } while (false); |
1458 | |
1459 | RefPtr<nsFrameLoader> frameLoader = frameLoaderOwner->GetFrameLoader(); |
1460 | NS_ENSURE_TRUE_VOID(frameLoaderOwner)do { if ((__builtin_expect(!!(!(frameLoaderOwner)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "frameLoaderOwner" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1460); return; } } while (false); |
1461 | |
1462 | RefPtr<BrowsingContext> browsingContext = frameLoader->GetBrowsingContext(); |
1463 | NS_ENSURE_TRUE_VOID(browsingContext)do { if ((__builtin_expect(!!(!(browsingContext)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "browsingContext" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1463); return; } } while (false); |
1464 | |
1465 | WindowGlobalParent* windowGlobalParent = |
1466 | browsingContext->Canonical()->GetCurrentWindowGlobal(); |
1467 | NS_ENSURE_TRUE_VOID(windowGlobalParent)do { if ((__builtin_expect(!!(!(windowGlobalParent)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "windowGlobalParent" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1467); return; } } while (false); |
1468 | |
1469 | // Log to console |
1470 | nsAutoString localizedMsg; |
1471 | nsTArray<nsString> params; |
1472 | nsresult rv = nsContentUtils::FormatLocalizedString( |
1473 | nsContentUtils::eDOM_PROPERTIES, "FullscreenExitWindowFocus", params, |
1474 | localizedMsg); |
1475 | |
1476 | NS_ENSURE_SUCCESS_VOID(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_VOID(%s) failed with " "result 0x%" "X" "%s%s%s", "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/base/nsFocusManager.cpp" , 1476); return; } } while (false); |
1477 | |
1478 | Unused << nsContentUtils::ReportToConsoleByWindowID( |
1479 | localizedMsg, nsIScriptError::warningFlag, "DOM"_ns, |
1480 | windowGlobalParent->InnerWindowId(), |
1481 | windowGlobalParent->GetDocumentURI()); |
1482 | } |
1483 | |
1484 | // Ensure that when an embedded popup with a noautofocus attribute |
1485 | // like a date picker is opened and focused, the parent page does not blur |
1486 | static bool IsEmeddededInNoautofocusPopup(BrowsingContext& aBc) { |
1487 | auto* embedder = aBc.GetEmbedderElement(); |
1488 | if (!embedder) { |
1489 | return false; |
1490 | } |
1491 | nsIFrame* f = embedder->GetPrimaryFrame(); |
1492 | if (!f || !f->HasAnyStateBits(NS_FRAME_IN_POPUP)) { |
1493 | return false; |
1494 | } |
1495 | |
1496 | nsIFrame* menuPopup = |
1497 | nsLayoutUtils::GetClosestFrameOfType(f, LayoutFrameType::MenuPopup); |
1498 | MOZ_ASSERT(menuPopup, "NS_FRAME_IN_POPUP lied?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(menuPopup)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(menuPopup))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("menuPopup" " (" "NS_FRAME_IN_POPUP lied?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1498); AnnotateMozCrashReason("MOZ_ASSERT" "(" "menuPopup" ") (" "NS_FRAME_IN_POPUP lied?" ")"); do { *((volatile int*)__null ) = 1498; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
1499 | return static_cast<nsMenuPopupFrame*>(menuPopup) |
1500 | ->PopupElement() |
1501 | .GetXULBoolAttr(nsGkAtoms::noautofocus); |
1502 | } |
1503 | |
1504 | Maybe<uint64_t> nsFocusManager::SetFocusInner(Element* aNewContent, |
1505 | int32_t aFlags, |
1506 | bool aFocusChanged, |
1507 | bool aAdjustWidget) { |
1508 | // if the element is not focusable, just return and leave the focus as is |
1509 | RefPtr<Element> elementToFocus = |
1510 | FlushAndCheckIfFocusable(aNewContent, aFlags); |
1511 | if (!elementToFocus) { |
1512 | return Nothing(); |
1513 | } |
1514 | |
1515 | const RefPtr<BrowsingContext> focusedBrowsingContext = |
1516 | GetFocusedBrowsingContext(); |
1517 | |
1518 | // check if the element to focus is a frame (iframe) containing a child |
1519 | // document. Frames are never directly focused; instead focusing a frame |
1520 | // means focus what is inside the frame. To do this, the descendant content |
1521 | // within the frame is retrieved and that will be focused instead. |
1522 | nsCOMPtr<nsPIDOMWindowOuter> newWindow; |
1523 | nsCOMPtr<nsPIDOMWindowOuter> subWindow = GetContentWindow(elementToFocus); |
1524 | if (subWindow) { |
1525 | elementToFocus = GetFocusedDescendant(subWindow, eIncludeAllDescendants, |
1526 | getter_AddRefs(newWindow)); |
1527 | |
1528 | // since a window is being refocused, clear aFocusChanged so that the |
1529 | // caret position isn't updated. |
1530 | aFocusChanged = false; |
1531 | } |
1532 | |
1533 | // unless it was set above, retrieve the window for the element to focus |
1534 | if (!newWindow) { |
1535 | newWindow = GetCurrentWindow(elementToFocus); |
1536 | } |
1537 | |
1538 | RefPtr<BrowsingContext> newBrowsingContext; |
1539 | if (newWindow) { |
1540 | newBrowsingContext = newWindow->GetBrowsingContext(); |
1541 | } |
1542 | |
1543 | // if the element is already focused, just return. Note that this happens |
1544 | // after the frame check above so that we compare the element that will be |
1545 | // focused rather than the frame it is in. |
1546 | if (!newWindow || (newBrowsingContext == GetFocusedBrowsingContext() && |
1547 | elementToFocus == mFocusedElement)) { |
1548 | return Nothing(); |
1549 | } |
1550 | |
1551 | MOZ_ASSERT(newBrowsingContext)do { static_assert( mozilla::detail::AssertionConditionType< decltype(newBrowsingContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(newBrowsingContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("newBrowsingContext" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1551); AnnotateMozCrashReason("MOZ_ASSERT" "(" "newBrowsingContext" ")"); do { *((volatile int*)__null) = 1551; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
1552 | |
1553 | BrowsingContext* browsingContextToFocus = newBrowsingContext; |
1554 | if (RefPtr<nsFrameLoaderOwner> flo = do_QueryObject(elementToFocus)) { |
1555 | // Only look at pre-existing browsing contexts. If this function is |
1556 | // called during reflow, calling GetBrowsingContext() could cause frame |
1557 | // loader initialization at a time when it isn't safe. |
1558 | if (BrowsingContext* bc = flo->GetExtantBrowsingContext()) { |
1559 | // If focus is already in the subtree rooted at bc, return early |
1560 | // to match the single-process focus semantics. Otherwise, we'd |
1561 | // blur and immediately refocus whatever is focused. |
1562 | BrowsingContext* walk = focusedBrowsingContext; |
1563 | while (walk) { |
1564 | if (walk == bc) { |
1565 | return Nothing(); |
1566 | } |
1567 | walk = walk->GetParent(); |
1568 | } |
1569 | browsingContextToFocus = bc; |
1570 | } |
1571 | } |
1572 | |
1573 | // don't allow focus to be placed in docshells or descendants of docshells |
1574 | // that are being destroyed. Also, ensure that the page hasn't been |
1575 | // unloaded. The prevents content from being refocused during an unload event. |
1576 | nsCOMPtr<nsIDocShell> newDocShell = newWindow->GetDocShell(); |
1577 | nsCOMPtr<nsIDocShell> docShell = newDocShell; |
1578 | while (docShell) { |
1579 | bool inUnload; |
1580 | docShell->GetIsInUnload(&inUnload); |
1581 | if (inUnload) { |
1582 | return Nothing(); |
1583 | } |
1584 | |
1585 | bool beingDestroyed; |
1586 | docShell->IsBeingDestroyed(&beingDestroyed); |
1587 | if (beingDestroyed) { |
1588 | return Nothing(); |
1589 | } |
1590 | |
1591 | BrowsingContext* bc = docShell->GetBrowsingContext(); |
1592 | |
1593 | nsCOMPtr<nsIDocShellTreeItem> parentDsti; |
1594 | docShell->GetInProcessParent(getter_AddRefs(parentDsti)); |
1595 | docShell = do_QueryInterface(parentDsti); |
1596 | if (!docShell && !XRE_IsParentProcess()) { |
1597 | // We don't have an in-process parent, but let's see if we have |
1598 | // an in-process ancestor or if an out-of-process ancestor |
1599 | // is discarded. |
1600 | do { |
1601 | bc = bc->GetParent(); |
1602 | if (bc && bc->IsDiscarded()) { |
1603 | return Nothing(); |
1604 | } |
1605 | } while (bc && !bc->IsInProcess()); |
1606 | if (bc) { |
1607 | docShell = bc->GetDocShell(); |
1608 | } else { |
1609 | docShell = nullptr; |
1610 | } |
1611 | } |
1612 | } |
1613 | |
1614 | bool focusMovesToDifferentBC = |
1615 | (focusedBrowsingContext != browsingContextToFocus); |
1616 | |
1617 | if (focusedBrowsingContext && focusMovesToDifferentBC && |
1618 | nsContentUtils::IsHandlingKeyBoardEvent() && |
1619 | !nsContentUtils::LegacyIsCallerChromeOrNativeCode()) { |
1620 | MOZ_ASSERT(browsingContextToFocus,do { static_assert( mozilla::detail::AssertionConditionType< decltype(browsingContextToFocus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(browsingContextToFocus))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("browsingContextToFocus" " (" "BrowsingContext to focus should be non-null." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1621); AnnotateMozCrashReason("MOZ_ASSERT" "(" "browsingContextToFocus" ") (" "BrowsingContext to focus should be non-null." ")"); do { *((volatile int*)__null) = 1621; __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
1621 | "BrowsingContext to focus should be non-null.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(browsingContextToFocus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(browsingContextToFocus))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("browsingContextToFocus" " (" "BrowsingContext to focus should be non-null." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1621); AnnotateMozCrashReason("MOZ_ASSERT" "(" "browsingContextToFocus" ") (" "BrowsingContext to focus should be non-null." ")"); do { *((volatile int*)__null) = 1621; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
1622 | |
1623 | nsIPrincipal* focusedPrincipal = nullptr; |
1624 | nsIPrincipal* newPrincipal = nullptr; |
1625 | |
1626 | if (XRE_IsParentProcess()) { |
1627 | if (WindowGlobalParent* focusedWindowGlobalParent = |
1628 | focusedBrowsingContext->Canonical()->GetCurrentWindowGlobal()) { |
1629 | focusedPrincipal = focusedWindowGlobalParent->DocumentPrincipal(); |
1630 | } |
1631 | |
1632 | if (WindowGlobalParent* newWindowGlobalParent = |
1633 | browsingContextToFocus->Canonical()->GetCurrentWindowGlobal()) { |
1634 | newPrincipal = newWindowGlobalParent->DocumentPrincipal(); |
1635 | } |
1636 | } else if (focusedBrowsingContext->IsInProcess() && |
1637 | browsingContextToFocus->IsInProcess()) { |
1638 | nsCOMPtr<nsIScriptObjectPrincipal> focused = |
1639 | do_QueryInterface(focusedBrowsingContext->GetDOMWindow()); |
1640 | nsCOMPtr<nsIScriptObjectPrincipal> newFocus = |
1641 | do_QueryInterface(browsingContextToFocus->GetDOMWindow()); |
1642 | MOZ_ASSERT(focused && newFocus,do { static_assert( mozilla::detail::AssertionConditionType< decltype(focused && newFocus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(focused && newFocus) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("focused && newFocus" " (" "BrowsingContext should always have a window here." ")" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1643); AnnotateMozCrashReason("MOZ_ASSERT" "(" "focused && newFocus" ") (" "BrowsingContext should always have a window here." ")" ); do { *((volatile int*)__null) = 1643; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
1643 | "BrowsingContext should always have a window here.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(focused && newFocus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(focused && newFocus) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("focused && newFocus" " (" "BrowsingContext should always have a window here." ")" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1643); AnnotateMozCrashReason("MOZ_ASSERT" "(" "focused && newFocus" ") (" "BrowsingContext should always have a window here." ")" ); do { *((volatile int*)__null) = 1643; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
1644 | focusedPrincipal = focused->GetPrincipal(); |
1645 | newPrincipal = newFocus->GetPrincipal(); |
1646 | } |
1647 | |
1648 | if (!focusedPrincipal || !newPrincipal) { |
1649 | return Nothing(); |
1650 | } |
1651 | |
1652 | if (!focusedPrincipal->Subsumes(newPrincipal)) { |
1653 | NS_WARNING("Not allowed to focus the new window!")NS_DebugBreak(NS_DEBUG_WARNING, "Not allowed to focus the new window!" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1653); |
1654 | return Nothing(); |
1655 | } |
1656 | } |
1657 | |
1658 | // to check if the new element is in the active window, compare the |
1659 | // new root docshell for the new element with the active window's docshell. |
1660 | RefPtr<BrowsingContext> newRootBrowsingContext = nullptr; |
1661 | bool isElementInActiveWindow = false; |
1662 | if (XRE_IsParentProcess()) { |
1663 | nsCOMPtr<nsPIDOMWindowOuter> newRootWindow = nullptr; |
1664 | nsCOMPtr<nsIDocShellTreeItem> dsti = newWindow->GetDocShell(); |
1665 | if (dsti) { |
1666 | nsCOMPtr<nsIDocShellTreeItem> root; |
1667 | dsti->GetInProcessRootTreeItem(getter_AddRefs(root)); |
1668 | newRootWindow = root ? root->GetWindow() : nullptr; |
1669 | |
1670 | isElementInActiveWindow = |
1671 | (mActiveWindow && newRootWindow == mActiveWindow); |
1672 | } |
1673 | if (newRootWindow) { |
1674 | newRootBrowsingContext = newRootWindow->GetBrowsingContext(); |
1675 | } |
1676 | } else { |
1677 | // XXX This is wrong for `<iframe mozbrowser>` and for XUL |
1678 | // `<browser remote="true">`. See: |
1679 | // https://searchfox.org/mozilla-central/rev/8a63fc190b39ed6951abb4aef4a56487a43962bc/dom/base/nsFrameLoader.cpp#229-232 |
1680 | newRootBrowsingContext = newBrowsingContext->Top(); |
1681 | // to check if the new element is in the active window, compare the |
1682 | // new root docshell for the new element with the active window's docshell. |
1683 | isElementInActiveWindow = |
1684 | (GetActiveBrowsingContext() == newRootBrowsingContext); |
1685 | } |
1686 | |
1687 | // Exit fullscreen if a website focuses another window |
1688 | if (StaticPrefs::full_screen_api_exit_on_windowRaise() && |
1689 | !isElementInActiveWindow && (aFlags & FLAG_RAISE)) { |
1690 | if (XRE_IsParentProcess()) { |
1691 | if (Document* doc = mActiveWindow ? mActiveWindow->GetDoc() : nullptr) { |
1692 | Document::ClearPendingFullscreenRequests(doc); |
1693 | if (doc->GetFullscreenElement()) { |
1694 | LogWarningFullscreenWindowRaise(mFocusedElement); |
1695 | Document::AsyncExitFullscreen(doc); |
1696 | } |
1697 | } |
1698 | } else { |
1699 | BrowsingContext* activeBrowsingContext = GetActiveBrowsingContext(); |
1700 | if (activeBrowsingContext) { |
1701 | nsIDocShell* shell = activeBrowsingContext->GetDocShell(); |
1702 | if (shell) { |
1703 | if (Document* doc = shell->GetDocument()) { |
1704 | Document::ClearPendingFullscreenRequests(doc); |
1705 | if (doc->GetFullscreenElement()) { |
1706 | Document::AsyncExitFullscreen(doc); |
1707 | } |
1708 | } |
1709 | } else { |
1710 | mozilla::dom::ContentChild* contentChild = |
1711 | mozilla::dom::ContentChild::GetSingleton(); |
1712 | MOZ_ASSERT(contentChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("contentChild", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1712); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 1712; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
1713 | contentChild->SendMaybeExitFullscreen(activeBrowsingContext); |
1714 | } |
1715 | } |
1716 | } |
1717 | } |
1718 | |
1719 | // if the FLAG_NOSWITCHFRAME flag is used, only allow the focus to be |
1720 | // shifted away from the current element if the new shell to focus is |
1721 | // the same or an ancestor shell of the currently focused shell. |
1722 | bool allowFrameSwitch = !(aFlags & FLAG_NOSWITCHFRAME) || |
1723 | IsSameOrAncestor(newWindow, focusedBrowsingContext); |
1724 | |
1725 | // if the element is in the active window, frame switching is allowed and |
1726 | // the content is in a visible window, fire blur and focus events. |
1727 | bool sendFocusEvent = |
1728 | isElementInActiveWindow && allowFrameSwitch && IsWindowVisible(newWindow); |
1729 | |
1730 | // Don't allow to steal the focus from chrome nodes if the caller cannot |
1731 | // access them. |
1732 | if (sendFocusEvent && mFocusedElement && |
1733 | mFocusedElement->OwnerDoc() != aNewContent->OwnerDoc() && |
1734 | mFocusedElement->NodePrincipal()->IsSystemPrincipal() && |
1735 | !nsContentUtils::LegacyIsCallerNativeCode() && |
1736 | !nsContentUtils::CanCallerAccess(mFocusedElement)) { |
1737 | sendFocusEvent = false; |
1738 | } |
1739 | |
1740 | LOGCONTENT("Shift Focus: %s", elementToFocus.get())if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (elementToFocus.get()) { elementToFocus.get()->NodeInfo() ->NameAtom()->ToUTF8String(tag); } do { const ::mozilla ::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect (!!(mozilla::detail::log_test(moz_real_module, LogLevel::Debug )), 0))) { mozilla::detail::log_print(moz_real_module, LogLevel ::Debug, "Shift Focus: %s", tag.get()); } } while (0); }; |
1741 | LOGFOCUS((" Flags: %x Current Window: %p New Window: %p Current Element: %p",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Flags: %x Current Window: %p New Window: %p Current Element: %p" , aFlags, mFocusedWindow.get(), newWindow.get(), mFocusedElement .get()); } } while (0) |
1742 | aFlags, mFocusedWindow.get(), newWindow.get(),do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Flags: %x Current Window: %p New Window: %p Current Element: %p" , aFlags, mFocusedWindow.get(), newWindow.get(), mFocusedElement .get()); } } while (0) |
1743 | mFocusedElement.get()))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Flags: %x Current Window: %p New Window: %p Current Element: %p" , aFlags, mFocusedWindow.get(), newWindow.get(), mFocusedElement .get()); } } while (0); |
1744 | const uint64_t actionId = GenerateFocusActionId(); |
1745 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " In Active Window: %d Moves to different BrowsingContext: %d " "SendFocus: %d actionid: %" "l" "u", isElementInActiveWindow , focusMovesToDifferentBC, sendFocusEvent, actionId); } } while (0) |
1746 | (" In Active Window: %d Moves to different BrowsingContext: %d "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " In Active Window: %d Moves to different BrowsingContext: %d " "SendFocus: %d actionid: %" "l" "u", isElementInActiveWindow , focusMovesToDifferentBC, sendFocusEvent, actionId); } } while (0) |
1747 | "SendFocus: %d actionid: %" PRIu64,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " In Active Window: %d Moves to different BrowsingContext: %d " "SendFocus: %d actionid: %" "l" "u", isElementInActiveWindow , focusMovesToDifferentBC, sendFocusEvent, actionId); } } while (0) |
1748 | isElementInActiveWindow, focusMovesToDifferentBC, sendFocusEvent,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " In Active Window: %d Moves to different BrowsingContext: %d " "SendFocus: %d actionid: %" "l" "u", isElementInActiveWindow , focusMovesToDifferentBC, sendFocusEvent, actionId); } } while (0) |
1749 | actionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " In Active Window: %d Moves to different BrowsingContext: %d " "SendFocus: %d actionid: %" "l" "u", isElementInActiveWindow , focusMovesToDifferentBC, sendFocusEvent, actionId); } } while (0); |
1750 | |
1751 | if (sendFocusEvent) { |
1752 | Maybe<BlurredElementInfo> blurredInfo; |
1753 | if (mFocusedElement) { |
1754 | blurredInfo.emplace(*mFocusedElement); |
1755 | } |
1756 | // return if blurring fails or the focus changes during the blur |
1757 | if (focusedBrowsingContext) { |
1758 | // find the common ancestor of the currently focused window and the new |
1759 | // window. The ancestor will need to have its currently focused node |
1760 | // cleared once the document has been blurred. Otherwise, we'll be in a |
1761 | // state where a document is blurred yet the chain of windows above it |
1762 | // still points to that document. |
1763 | // For instance, in the following frame tree: |
1764 | // A |
1765 | // B C |
1766 | // D |
1767 | // D is focused and we want to focus C. Once D has been blurred, we need |
1768 | // to clear out the focus in A, otherwise A would still maintain that B |
1769 | // was focused, and B that D was focused. |
1770 | RefPtr<BrowsingContext> commonAncestor = |
1771 | focusMovesToDifferentBC |
1772 | ? GetCommonAncestor(newWindow, focusedBrowsingContext) |
1773 | : nullptr; |
1774 | |
1775 | const bool needToClearFocusedElement = [&] { |
1776 | if (focusedBrowsingContext->IsChrome()) { |
1777 | // Always reset focused element if focus is currently in chrome |
1778 | // window, unless we're moving focus to a popup. |
1779 | return !IsEmeddededInNoautofocusPopup(*browsingContextToFocus); |
1780 | } |
1781 | if (focusedBrowsingContext->Top() != browsingContextToFocus->Top()) { |
1782 | // Only reset focused element if focus moves within the same top-level |
1783 | // content window. |
1784 | return false; |
1785 | } |
1786 | // XXX for the case that we try to focus an |
1787 | // already-focused-remote-frame, we would still send blur and focus |
1788 | // IPC to it, but they will not generate blur or focus event, we don't |
1789 | // want to reset activeElement on the remote frame. |
1790 | return focusMovesToDifferentBC || focusedBrowsingContext->IsInProcess(); |
1791 | }(); |
1792 | |
1793 | const bool remainActive = |
1794 | focusMovesToDifferentBC && |
1795 | IsEmeddededInNoautofocusPopup(*browsingContextToFocus); |
1796 | |
1797 | // TODO: MOZ_KnownLive is required due to bug 1770680 |
1798 | if (!Blur(MOZ_KnownLive(needToClearFocusedElement(needToClearFocusedElement ? focusedBrowsingContext.get() : nullptr ) |
1799 | ? focusedBrowsingContext.get()(needToClearFocusedElement ? focusedBrowsingContext.get() : nullptr ) |
1800 | : nullptr)(needToClearFocusedElement ? focusedBrowsingContext.get() : nullptr ), |
1801 | commonAncestor, focusMovesToDifferentBC, aAdjustWidget, |
1802 | remainActive, actionId, elementToFocus)) { |
1803 | return Some(actionId); |
1804 | } |
1805 | } |
1806 | |
1807 | Focus(newWindow, elementToFocus, aFlags, focusMovesToDifferentBC, |
1808 | aFocusChanged, false, aAdjustWidget, actionId, blurredInfo); |
1809 | } else { |
1810 | // otherwise, for inactive windows and when the caller cannot steal the |
1811 | // focus, update the node in the window, and raise the window if desired. |
1812 | if (allowFrameSwitch) { |
1813 | AdjustWindowFocus(newBrowsingContext, true, IsWindowVisible(newWindow), |
1814 | actionId, false /* aShouldClearAncestorFocus */, |
1815 | nullptr /* aAncestorBrowsingContextToFocus */); |
1816 | } |
1817 | |
1818 | // set the focus node and method as needed |
1819 | uint32_t focusMethod = |
1820 | aFocusChanged ? aFlags & METHODANDRING_MASK |
1821 | : newWindow->GetFocusMethod() | |
1822 | (aFlags & (FLAG_SHOWRING | FLAG_NOSHOWRING)); |
1823 | newWindow->SetFocusedElement(elementToFocus, focusMethod); |
1824 | if (aFocusChanged) { |
1825 | if (nsCOMPtr<nsIDocShell> docShell = newWindow->GetDocShell()) { |
1826 | RefPtr<PresShell> presShell = docShell->GetPresShell(); |
1827 | if (presShell && presShell->DidInitialize()) { |
1828 | ScrollIntoView(presShell, elementToFocus, aFlags); |
1829 | } |
1830 | } |
1831 | } |
1832 | |
1833 | // update the commands even when inactive so that the attributes for that |
1834 | // window are up to date. |
1835 | if (allowFrameSwitch) { |
1836 | newWindow->UpdateCommands(u"focus"_ns); |
1837 | } |
1838 | |
1839 | if (aFlags & FLAG_RAISE) { |
1840 | if (newRootBrowsingContext) { |
1841 | if (XRE_IsParentProcess() || newRootBrowsingContext->IsInProcess()) { |
1842 | nsCOMPtr<nsPIDOMWindowOuter> outerWindow = |
1843 | newRootBrowsingContext->GetDOMWindow(); |
1844 | RaiseWindow(outerWindow, |
1845 | aFlags & FLAG_NONSYSTEMCALLER ? CallerType::NonSystem |
1846 | : CallerType::System, |
1847 | actionId); |
1848 | } else { |
1849 | mozilla::dom::ContentChild* contentChild = |
1850 | mozilla::dom::ContentChild::GetSingleton(); |
1851 | MOZ_ASSERT(contentChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("contentChild", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1851); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 1851; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
1852 | contentChild->SendRaiseWindow(newRootBrowsingContext, |
1853 | aFlags & FLAG_NONSYSTEMCALLER |
1854 | ? CallerType::NonSystem |
1855 | : CallerType::System, |
1856 | actionId); |
1857 | } |
1858 | } |
1859 | } |
1860 | } |
1861 | return Some(actionId); |
1862 | } |
1863 | |
1864 | static BrowsingContext* GetParentIgnoreChromeBoundary(BrowsingContext* aBC) { |
1865 | // Chrome BrowsingContexts are only available in the parent process, so if |
1866 | // we're in a content process, we only worry about the context tree. |
1867 | if (XRE_IsParentProcess()) { |
1868 | return aBC->Canonical()->GetParentCrossChromeBoundary(); |
1869 | } |
1870 | return aBC->GetParent(); |
1871 | } |
1872 | |
1873 | bool nsFocusManager::IsSameOrAncestor(BrowsingContext* aPossibleAncestor, |
1874 | BrowsingContext* aContext) const { |
1875 | if (!aPossibleAncestor) { |
1876 | return false; |
1877 | } |
1878 | |
1879 | for (BrowsingContext* bc = aContext; bc; |
1880 | bc = GetParentIgnoreChromeBoundary(bc)) { |
1881 | if (bc == aPossibleAncestor) { |
1882 | return true; |
1883 | } |
1884 | } |
1885 | |
1886 | return false; |
1887 | } |
1888 | |
1889 | bool nsFocusManager::IsSameOrAncestor(nsPIDOMWindowOuter* aPossibleAncestor, |
1890 | nsPIDOMWindowOuter* aWindow) const { |
1891 | if (aWindow && aPossibleAncestor) { |
1892 | return IsSameOrAncestor(aPossibleAncestor->GetBrowsingContext(), |
1893 | aWindow->GetBrowsingContext()); |
1894 | } |
1895 | return false; |
1896 | } |
1897 | |
1898 | bool nsFocusManager::IsSameOrAncestor(nsPIDOMWindowOuter* aPossibleAncestor, |
1899 | BrowsingContext* aContext) const { |
1900 | if (aPossibleAncestor) { |
1901 | return IsSameOrAncestor(aPossibleAncestor->GetBrowsingContext(), aContext); |
1902 | } |
1903 | return false; |
1904 | } |
1905 | |
1906 | bool nsFocusManager::IsSameOrAncestor(BrowsingContext* aPossibleAncestor, |
1907 | nsPIDOMWindowOuter* aWindow) const { |
1908 | if (aWindow) { |
1909 | return IsSameOrAncestor(aPossibleAncestor, aWindow->GetBrowsingContext()); |
1910 | } |
1911 | return false; |
1912 | } |
1913 | |
1914 | mozilla::dom::BrowsingContext* nsFocusManager::GetCommonAncestor( |
1915 | nsPIDOMWindowOuter* aWindow, mozilla::dom::BrowsingContext* aContext) { |
1916 | NS_ENSURE_TRUE(aWindow && aContext, nullptr)do { if ((__builtin_expect(!!(!(aWindow && aContext)) , 0))) { NS_DebugBreak(NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aWindow && aContext" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1916); return nullptr; } } while (false); |
1917 | |
1918 | if (XRE_IsParentProcess()) { |
1919 | nsCOMPtr<nsIDocShellTreeItem> dsti1 = aWindow->GetDocShell(); |
1920 | NS_ENSURE_TRUE(dsti1, nullptr)do { if ((__builtin_expect(!!(!(dsti1)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "dsti1" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1920); return nullptr; } } while (false); |
1921 | |
1922 | nsCOMPtr<nsIDocShellTreeItem> dsti2 = aContext->GetDocShell(); |
1923 | NS_ENSURE_TRUE(dsti2, nullptr)do { if ((__builtin_expect(!!(!(dsti2)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "dsti2" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1923); return nullptr; } } while (false); |
1924 | |
1925 | AutoTArray<nsIDocShellTreeItem*, 30> parents1, parents2; |
1926 | do { |
1927 | parents1.AppendElement(dsti1); |
1928 | nsCOMPtr<nsIDocShellTreeItem> parentDsti1; |
1929 | dsti1->GetInProcessParent(getter_AddRefs(parentDsti1)); |
1930 | dsti1.swap(parentDsti1); |
1931 | } while (dsti1); |
1932 | do { |
1933 | parents2.AppendElement(dsti2); |
1934 | nsCOMPtr<nsIDocShellTreeItem> parentDsti2; |
1935 | dsti2->GetInProcessParent(getter_AddRefs(parentDsti2)); |
1936 | dsti2.swap(parentDsti2); |
1937 | } while (dsti2); |
1938 | |
1939 | uint32_t pos1 = parents1.Length(); |
1940 | uint32_t pos2 = parents2.Length(); |
1941 | nsIDocShellTreeItem* parent = nullptr; |
1942 | uint32_t len; |
1943 | for (len = std::min(pos1, pos2); len > 0; --len) { |
1944 | nsIDocShellTreeItem* child1 = parents1.ElementAt(--pos1); |
1945 | nsIDocShellTreeItem* child2 = parents2.ElementAt(--pos2); |
1946 | if (child1 != child2) { |
1947 | break; |
1948 | } |
1949 | parent = child1; |
1950 | } |
1951 | |
1952 | return parent ? parent->GetBrowsingContext() : nullptr; |
1953 | } |
1954 | |
1955 | BrowsingContext* bc1 = aWindow->GetBrowsingContext(); |
1956 | NS_ENSURE_TRUE(bc1, nullptr)do { if ((__builtin_expect(!!(!(bc1)), 0))) { NS_DebugBreak(NS_DEBUG_WARNING , "NS_ENSURE_TRUE(" "bc1" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1956); return nullptr; } } while (false); |
1957 | |
1958 | BrowsingContext* bc2 = aContext; |
1959 | |
1960 | AutoTArray<BrowsingContext*, 30> parents1, parents2; |
1961 | do { |
1962 | parents1.AppendElement(bc1); |
1963 | bc1 = bc1->GetParent(); |
1964 | } while (bc1); |
1965 | do { |
1966 | parents2.AppendElement(bc2); |
1967 | bc2 = bc2->GetParent(); |
1968 | } while (bc2); |
1969 | |
1970 | uint32_t pos1 = parents1.Length(); |
1971 | uint32_t pos2 = parents2.Length(); |
1972 | BrowsingContext* parent = nullptr; |
1973 | uint32_t len; |
1974 | for (len = std::min(pos1, pos2); len > 0; --len) { |
1975 | BrowsingContext* child1 = parents1.ElementAt(--pos1); |
1976 | BrowsingContext* child2 = parents2.ElementAt(--pos2); |
1977 | if (child1 != child2) { |
1978 | break; |
1979 | } |
1980 | parent = child1; |
1981 | } |
1982 | |
1983 | return parent; |
1984 | } |
1985 | |
1986 | bool nsFocusManager::AdjustInProcessWindowFocus( |
1987 | BrowsingContext* aBrowsingContext, bool aCheckPermission, bool aIsVisible, |
1988 | uint64_t aActionId, bool aShouldClearAncestorFocus, |
1989 | BrowsingContext* aAncestorBrowsingContextToFocus) { |
1990 | MOZ_ASSERT_IF(aAncestorBrowsingContextToFocus, aShouldClearAncestorFocus)do { if (aAncestorBrowsingContextToFocus) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(aShouldClearAncestorFocus )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aShouldClearAncestorFocus))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("aShouldClearAncestorFocus", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 1990); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aShouldClearAncestorFocus" ")"); do { *((volatile int*)__null) = 1990; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
1991 | if (ActionIdComparableAndLower(aActionId, |
1992 | mActionIdForFocusedBrowsingContextInContent)) { |
1993 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to adjust an in-process BrowsingContext [%p] as " "focused from another process due to stale action id %" "l" "u" ".", aBrowsingContext, aActionId); } } while (0) |
1994 | ("Ignored an attempt to adjust an in-process BrowsingContext [%p] as "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to adjust an in-process BrowsingContext [%p] as " "focused from another process due to stale action id %" "l" "u" ".", aBrowsingContext, aActionId); } } while (0) |
1995 | "focused from another process due to stale action id %" PRIu64 ".",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to adjust an in-process BrowsingContext [%p] as " "focused from another process due to stale action id %" "l" "u" ".", aBrowsingContext, aActionId); } } while (0) |
1996 | aBrowsingContext, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to adjust an in-process BrowsingContext [%p] as " "focused from another process due to stale action id %" "l" "u" ".", aBrowsingContext, aActionId); } } while (0); |
1997 | return false; |
1998 | } |
1999 | |
2000 | BrowsingContext* bc = aBrowsingContext; |
2001 | bool needToNotifyOtherProcess = false; |
2002 | while (bc) { |
2003 | // get the containing <iframe> or equivalent element so that it can be |
2004 | // focused below. |
2005 | nsCOMPtr<Element> frameElement = bc->GetEmbedderElement(); |
2006 | BrowsingContext* parent = bc->GetParent(); |
2007 | if (!parent && XRE_IsParentProcess()) { |
2008 | CanonicalBrowsingContext* canonical = bc->Canonical(); |
2009 | RefPtr<WindowGlobalParent> embedder = |
2010 | canonical->GetEmbedderWindowGlobal(); |
2011 | if (embedder) { |
2012 | parent = embedder->BrowsingContext(); |
2013 | } |
2014 | } |
2015 | bc = parent; |
2016 | if (!bc) { |
2017 | break; |
2018 | } |
2019 | if (!frameElement && XRE_IsContentProcess()) { |
2020 | needToNotifyOtherProcess = true; |
2021 | continue; |
2022 | } |
2023 | |
2024 | nsCOMPtr<nsPIDOMWindowOuter> window = bc->GetDOMWindow(); |
2025 | MOZ_ASSERT(window)do { static_assert( mozilla::detail::AssertionConditionType< decltype(window)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(window))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("window", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2025); AnnotateMozCrashReason("MOZ_ASSERT" "(" "window" ")" ); do { *((volatile int*)__null) = 2025; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
2026 | // if the parent window is visible but the original window was not, then we |
2027 | // have likely moved up and out from a hidden tab to the browser window, or |
2028 | // a similar such arrangement. Stop adjusting the current nodes. |
2029 | if (IsWindowVisible(window) != aIsVisible) { |
2030 | break; |
2031 | } |
2032 | |
2033 | // When aCheckPermission is true, we should check whether the caller can |
2034 | // access the window or not. If it cannot access, we should stop the |
2035 | // adjusting. |
2036 | if (aCheckPermission && !nsContentUtils::LegacyIsCallerNativeCode() && |
2037 | !nsContentUtils::CanCallerAccess(window->GetCurrentInnerWindow())) { |
2038 | break; |
2039 | } |
2040 | |
2041 | if (aShouldClearAncestorFocus) { |
2042 | // This is the BrowsingContext that receives the focus, no need to clear |
2043 | // its focused element and the rest of the ancestors. |
2044 | if (window->GetBrowsingContext() == aAncestorBrowsingContextToFocus) { |
2045 | break; |
2046 | } |
2047 | |
2048 | window->SetFocusedElement(nullptr); |
2049 | continue; |
2050 | } |
2051 | |
2052 | if (frameElement != window->GetFocusedElement()) { |
2053 | window->SetFocusedElement(frameElement); |
2054 | |
2055 | RefPtr<nsFrameLoaderOwner> loaderOwner = do_QueryObject(frameElement); |
2056 | MOZ_ASSERT(loaderOwner)do { static_assert( mozilla::detail::AssertionConditionType< decltype(loaderOwner)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(loaderOwner))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("loaderOwner", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2056); AnnotateMozCrashReason("MOZ_ASSERT" "(" "loaderOwner" ")"); do { *((volatile int*)__null) = 2056; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
2057 | RefPtr<nsFrameLoader> loader = loaderOwner->GetFrameLoader(); |
2058 | if (loader && loader->IsRemoteFrame() && |
2059 | GetFocusedBrowsingContext() == bc) { |
2060 | Blur(nullptr, nullptr, true, true, false, aActionId); |
2061 | } |
2062 | } |
2063 | } |
2064 | return needToNotifyOtherProcess; |
2065 | } |
2066 | |
2067 | void nsFocusManager::AdjustWindowFocus( |
2068 | BrowsingContext* aBrowsingContext, bool aCheckPermission, bool aIsVisible, |
2069 | uint64_t aActionId, bool aShouldClearAncestorFocus, |
2070 | BrowsingContext* aAncestorBrowsingContextToFocus) { |
2071 | MOZ_ASSERT_IF(aAncestorBrowsingContextToFocus, aShouldClearAncestorFocus)do { if (aAncestorBrowsingContextToFocus) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(aShouldClearAncestorFocus )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aShouldClearAncestorFocus))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("aShouldClearAncestorFocus", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2071); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aShouldClearAncestorFocus" ")"); do { *((volatile int*)__null) = 2071; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
2072 | if (AdjustInProcessWindowFocus(aBrowsingContext, aCheckPermission, aIsVisible, |
2073 | aActionId, aShouldClearAncestorFocus, |
2074 | aAncestorBrowsingContextToFocus)) { |
2075 | // Some ancestors of aBrowsingContext isn't in this process, so notify other |
2076 | // processes to adjust their focused element. |
2077 | mozilla::dom::ContentChild* contentChild = |
2078 | mozilla::dom::ContentChild::GetSingleton(); |
2079 | MOZ_ASSERT(contentChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("contentChild", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2079); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 2079; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
2080 | contentChild->SendAdjustWindowFocus(aBrowsingContext, aIsVisible, aActionId, |
2081 | aShouldClearAncestorFocus, |
2082 | aAncestorBrowsingContextToFocus); |
2083 | } |
2084 | } |
2085 | |
2086 | bool nsFocusManager::IsWindowVisible(nsPIDOMWindowOuter* aWindow) { |
2087 | if (!aWindow || aWindow->IsFrozen()) { |
2088 | return false; |
2089 | } |
2090 | |
2091 | // Check if the inner window is frozen as well. This can happen when a focus |
2092 | // change occurs while restoring a previous page. |
2093 | nsPIDOMWindowInner* innerWindow = aWindow->GetCurrentInnerWindow(); |
2094 | if (!innerWindow || innerWindow->IsFrozen()) { |
2095 | return false; |
2096 | } |
2097 | |
2098 | nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell(); |
2099 | nsCOMPtr<nsIBaseWindow> baseWin(do_QueryInterface(docShell)); |
2100 | if (!baseWin) { |
2101 | return false; |
2102 | } |
2103 | |
2104 | bool visible = false; |
2105 | baseWin->GetVisibility(&visible); |
2106 | return visible; |
2107 | } |
2108 | |
2109 | bool nsFocusManager::IsNonFocusableRoot(nsIContent* aContent) { |
2110 | MOZ_ASSERT(aContent, "aContent must not be NULL")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContent" " (" "aContent must not be NULL" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2110); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent" ") (" "aContent must not be NULL" ")"); do { *((volatile int*)__null ) = 2110; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
2111 | MOZ_ASSERT(aContent->IsInComposedDoc(), "aContent must be in a document")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent->IsInComposedDoc())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContent->IsInComposedDoc ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aContent->IsInComposedDoc()" " (" "aContent must be in a document" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2111); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent->IsInComposedDoc()" ") (" "aContent must be in a document" ")"); do { *((volatile int*)__null) = 2111; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
2112 | |
2113 | // If the uncomposed document of aContent is in designMode, the root element |
2114 | // is not focusable. |
2115 | // NOTE: Most elements whose uncomposed document is in design mode are not |
2116 | // focusable, just the document is focusable. However, if it's in a |
2117 | // shadow tree, it may be focus able even if the shadow host is in |
2118 | // design mode. |
2119 | // Also, if aContent is not editable and it's not in designMode, it's not |
2120 | // focusable. |
2121 | // And in userfocusignored context nothing is focusable. |
2122 | Document* doc = aContent->GetComposedDoc(); |
2123 | NS_ASSERTION(doc, "aContent must have current document")do { if (!(doc)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "aContent must have current document" , "doc", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2123); MOZ_PretendNoReturn(); } } while (0); |
2124 | return aContent == doc->GetRootElement() && |
2125 | (aContent->IsInDesignMode() || !aContent->IsEditable()); |
2126 | } |
2127 | |
2128 | Element* nsFocusManager::FlushAndCheckIfFocusable(Element* aElement, |
2129 | uint32_t aFlags) { |
2130 | if (!aElement) { |
2131 | return nullptr; |
2132 | } |
2133 | |
2134 | nsCOMPtr<Document> doc = aElement->GetComposedDoc(); |
2135 | // can't focus elements that are not in documents |
2136 | if (!doc) { |
2137 | LOGCONTENT("Cannot focus %s because content not in document", aElement)if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (aElement) { aElement->NodeInfo()->NameAtom()->ToUTF8String (tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Cannot focus %s because content not in document" , tag.get()); } } while (0); } |
2138 | return nullptr; |
2139 | } |
2140 | |
2141 | // Make sure that our frames are up to date while ensuring the presshell is |
2142 | // also initialized in case we come from a script calling focus() early. |
2143 | mEventHandlingNeedsFlush = false; |
2144 | doc->FlushPendingNotifications(FlushType::EnsurePresShellInitAndFrames); |
2145 | |
2146 | PresShell* presShell = doc->GetPresShell(); |
2147 | if (!presShell) { |
2148 | return nullptr; |
2149 | } |
2150 | |
2151 | // If this is an iframe that doesn't have an in-process subdocument, it is |
2152 | // either an OOP iframe or an in-process iframe without lazy about:blank |
2153 | // creation having taken place. In the OOP case, iframe is always focusable. |
2154 | // In the in-process case, create the initial about:blank for in-process |
2155 | // BrowsingContexts in order to have the `GetSubDocumentFor` call after this |
2156 | // block return something. |
2157 | // |
2158 | // TODO(emilio): This block can probably go after bug 543435 lands. |
2159 | if (RefPtr<nsFrameLoaderOwner> flo = do_QueryObject(aElement)) { |
2160 | if (!aElement->IsXULElement()) { |
2161 | // Only look at pre-existing browsing contexts. If this function is |
2162 | // called during reflow, calling GetBrowsingContext() could cause frame |
2163 | // loader initialization at a time when it isn't safe. |
2164 | if (BrowsingContext* bc = flo->GetExtantBrowsingContext()) { |
2165 | // This call may create a contentViewer-created about:blank. |
2166 | // That's intentional, so we can move focus there. |
2167 | Unused << bc->GetDocument(); |
2168 | } |
2169 | } |
2170 | } |
2171 | |
2172 | return GetTheFocusableArea(aElement, aFlags); |
2173 | } |
2174 | |
2175 | bool nsFocusManager::Blur(BrowsingContext* aBrowsingContextToClear, |
2176 | BrowsingContext* aAncestorBrowsingContextToFocus, |
2177 | bool aIsLeavingDocument, bool aAdjustWidget, |
2178 | bool aRemainActive, uint64_t aActionId, |
2179 | Element* aElementToFocus) { |
2180 | if (XRE_IsParentProcess()) { |
2181 | return BlurImpl(aBrowsingContextToClear, aAncestorBrowsingContextToFocus, |
2182 | aIsLeavingDocument, aAdjustWidget, aRemainActive, |
2183 | aElementToFocus, aActionId); |
2184 | } |
2185 | mozilla::dom::ContentChild* contentChild = |
2186 | mozilla::dom::ContentChild::GetSingleton(); |
2187 | MOZ_ASSERT(contentChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("contentChild", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2187); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 2187; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
2188 | bool windowToClearHandled = false; |
2189 | bool ancestorWindowToFocusHandled = false; |
2190 | |
2191 | RefPtr<BrowsingContext> focusedBrowsingContext = GetFocusedBrowsingContext(); |
2192 | if (focusedBrowsingContext && focusedBrowsingContext->IsDiscarded()) { |
2193 | focusedBrowsingContext = nullptr; |
2194 | } |
2195 | if (!focusedBrowsingContext) { |
2196 | mFocusedElement = nullptr; |
2197 | return true; |
2198 | } |
2199 | if (aBrowsingContextToClear && aBrowsingContextToClear->IsDiscarded()) { |
2200 | aBrowsingContextToClear = nullptr; |
2201 | } |
2202 | if (aAncestorBrowsingContextToFocus && |
2203 | aAncestorBrowsingContextToFocus->IsDiscarded()) { |
2204 | aAncestorBrowsingContextToFocus = nullptr; |
2205 | } |
2206 | // XXX should more early returns from BlurImpl be hoisted here to avoid |
2207 | // processing aBrowsingContextToClear and aAncestorBrowsingContextToFocus in |
2208 | // other processes when BlurImpl returns early in this process? Or should the |
2209 | // IPC messages for those be sent by BlurImpl itself, in which case they could |
2210 | // arrive late? |
2211 | if (focusedBrowsingContext->IsInProcess()) { |
2212 | if (aBrowsingContextToClear && !aBrowsingContextToClear->IsInProcess()) { |
2213 | MOZ_RELEASE_ASSERT(!(aAncestorBrowsingContextToFocus &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus ->IsInProcess()))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess( ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" " (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2217); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" ") (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")"); do { *((volatile int*)__null) = 2217 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
2214 | !aAncestorBrowsingContextToFocus->IsInProcess()),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus ->IsInProcess()))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess( ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" " (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2217); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" ") (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")"); do { *((volatile int*)__null) = 2217 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
2215 | "Both aBrowsingContextToClear and "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus ->IsInProcess()))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess( ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" " (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2217); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" ") (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")"); do { *((volatile int*)__null) = 2217 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
2216 | "aAncestorBrowsingContextToFocus are "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus ->IsInProcess()))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess( ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" " (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2217); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" ") (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")"); do { *((volatile int*)__null) = 2217 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
2217 | "out-of-process.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus ->IsInProcess()))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess( ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" " (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2217); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" ") (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")"); do { *((volatile int*)__null) = 2217 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
2218 | contentChild->SendSetFocusedElement(aBrowsingContextToClear, false); |
2219 | } |
2220 | if (aAncestorBrowsingContextToFocus && |
2221 | !aAncestorBrowsingContextToFocus->IsInProcess()) { |
2222 | contentChild->SendSetFocusedElement(aAncestorBrowsingContextToFocus, |
2223 | true); |
2224 | } |
2225 | return BlurImpl(aBrowsingContextToClear, aAncestorBrowsingContextToFocus, |
2226 | aIsLeavingDocument, aAdjustWidget, aRemainActive, |
2227 | aElementToFocus, aActionId); |
2228 | } |
2229 | if (aBrowsingContextToClear && aBrowsingContextToClear->IsInProcess()) { |
2230 | nsPIDOMWindowOuter* windowToClear = aBrowsingContextToClear->GetDOMWindow(); |
2231 | MOZ_ASSERT(windowToClear)do { static_assert( mozilla::detail::AssertionConditionType< decltype(windowToClear)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(windowToClear))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("windowToClear", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2231); AnnotateMozCrashReason("MOZ_ASSERT" "(" "windowToClear" ")"); do { *((volatile int*)__null) = 2231; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
2232 | windowToClear->SetFocusedElement(nullptr); |
2233 | windowToClearHandled = true; |
2234 | } |
2235 | if (aAncestorBrowsingContextToFocus && |
2236 | aAncestorBrowsingContextToFocus->IsInProcess()) { |
2237 | nsPIDOMWindowOuter* ancestorWindowToFocus = |
2238 | aAncestorBrowsingContextToFocus->GetDOMWindow(); |
2239 | MOZ_ASSERT(ancestorWindowToFocus)do { static_assert( mozilla::detail::AssertionConditionType< decltype(ancestorWindowToFocus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(ancestorWindowToFocus))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("ancestorWindowToFocus" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2239); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ancestorWindowToFocus" ")"); do { *((volatile int*)__null) = 2239; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
2240 | ancestorWindowToFocus->SetFocusedElement(nullptr, 0, true); |
2241 | ancestorWindowToFocusHandled = true; |
2242 | } |
2243 | // The expectation is that the blurring would eventually result in an IPC |
2244 | // message doing this anyway, but this doesn't happen if the focus is in OOP |
2245 | // iframe which won't try to bounce an IPC message to its parent frame. |
2246 | SetFocusedWindowInternal(nullptr, aActionId); |
2247 | contentChild->SendBlurToParent( |
2248 | focusedBrowsingContext, aBrowsingContextToClear, |
2249 | aAncestorBrowsingContextToFocus, aIsLeavingDocument, aAdjustWidget, |
2250 | windowToClearHandled, ancestorWindowToFocusHandled, aActionId); |
2251 | return true; |
2252 | } |
2253 | |
2254 | void nsFocusManager::BlurFromOtherProcess( |
2255 | mozilla::dom::BrowsingContext* aFocusedBrowsingContext, |
2256 | mozilla::dom::BrowsingContext* aBrowsingContextToClear, |
2257 | mozilla::dom::BrowsingContext* aAncestorBrowsingContextToFocus, |
2258 | bool aIsLeavingDocument, bool aAdjustWidget, uint64_t aActionId) { |
2259 | if (aFocusedBrowsingContext != GetFocusedBrowsingContext()) { |
2260 | return; |
2261 | } |
2262 | BlurImpl(aBrowsingContextToClear, aAncestorBrowsingContextToFocus, |
2263 | aIsLeavingDocument, aAdjustWidget, /* aRemainActive = */ false, |
2264 | nullptr, aActionId); |
2265 | } |
2266 | |
2267 | bool nsFocusManager::BlurImpl(BrowsingContext* aBrowsingContextToClear, |
2268 | BrowsingContext* aAncestorBrowsingContextToFocus, |
2269 | bool aIsLeavingDocument, bool aAdjustWidget, |
2270 | bool aRemainActive, Element* aElementToFocus, |
2271 | uint64_t aActionId) { |
2272 | LOGFOCUS(("<<Blur begin actionid: %" PRIu64 ">>", aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "<<Blur begin actionid: %" "l" "u" ">>", aActionId); } } while (0); |
2273 | |
2274 | // hold a reference to the focused content, which may be null |
2275 | RefPtr<Element> element = mFocusedElement; |
2276 | if (element) { |
2277 | if (!element->IsInComposedDoc()) { |
2278 | mFocusedElement = nullptr; |
2279 | return true; |
2280 | } |
2281 | if (element == mFirstBlurEvent) { |
2282 | return true; |
2283 | } |
2284 | } |
2285 | |
2286 | RefPtr<BrowsingContext> focusedBrowsingContext = GetFocusedBrowsingContext(); |
2287 | // hold a reference to the focused window |
2288 | nsCOMPtr<nsPIDOMWindowOuter> window; |
2289 | if (focusedBrowsingContext) { |
2290 | window = focusedBrowsingContext->GetDOMWindow(); |
2291 | } |
2292 | if (!window) { |
2293 | mFocusedElement = nullptr; |
2294 | return true; |
2295 | } |
2296 | |
2297 | nsCOMPtr<nsIDocShell> docShell = window->GetDocShell(); |
2298 | if (!docShell) { |
2299 | if (XRE_IsContentProcess() && |
2300 | ActionIdComparableAndLower( |
2301 | aActionId, mActionIdForFocusedBrowsingContextInContent)) { |
2302 | // Unclear if this ever happens. |
2303 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to null out focused BrowsingContext when " "docShell is null due to a stale action id %" "l" "u" ".", aActionId ); } } while (0) |
2304 | ("Ignored an attempt to null out focused BrowsingContext when "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to null out focused BrowsingContext when " "docShell is null due to a stale action id %" "l" "u" ".", aActionId ); } } while (0) |
2305 | "docShell is null due to a stale action id %" PRIu64 ".",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to null out focused BrowsingContext when " "docShell is null due to a stale action id %" "l" "u" ".", aActionId ); } } while (0) |
2306 | aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to null out focused BrowsingContext when " "docShell is null due to a stale action id %" "l" "u" ".", aActionId ); } } while (0); |
2307 | return true; |
2308 | } |
2309 | |
2310 | mFocusedWindow = nullptr; |
2311 | // Setting focused BrowsingContext to nullptr to avoid leaking in print |
2312 | // preview. |
2313 | SetFocusedBrowsingContext(nullptr, aActionId); |
2314 | mFocusedElement = nullptr; |
2315 | return true; |
2316 | } |
2317 | |
2318 | // Keep a ref to presShell since dispatching the DOM event may cause |
2319 | // the document to be destroyed. |
2320 | RefPtr<PresShell> presShell = docShell->GetPresShell(); |
2321 | if (!presShell) { |
2322 | if (XRE_IsContentProcess() && |
2323 | ActionIdComparableAndLower( |
2324 | aActionId, mActionIdForFocusedBrowsingContextInContent)) { |
2325 | // Unclear if this ever happens. |
2326 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to null out focused BrowsingContext when " "presShell is null due to a stale action id %" "l" "u" ".", aActionId ); } } while (0) |
2327 | ("Ignored an attempt to null out focused BrowsingContext when "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to null out focused BrowsingContext when " "presShell is null due to a stale action id %" "l" "u" ".", aActionId ); } } while (0) |
2328 | "presShell is null due to a stale action id %" PRIu64 ".",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to null out focused BrowsingContext when " "presShell is null due to a stale action id %" "l" "u" ".", aActionId ); } } while (0) |
2329 | aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to null out focused BrowsingContext when " "presShell is null due to a stale action id %" "l" "u" ".", aActionId ); } } while (0); |
2330 | return true; |
2331 | } |
2332 | mFocusedElement = nullptr; |
2333 | mFocusedWindow = nullptr; |
2334 | // Setting focused BrowsingContext to nullptr to avoid leaking in print |
2335 | // preview. |
2336 | SetFocusedBrowsingContext(nullptr, aActionId); |
2337 | return true; |
2338 | } |
2339 | |
2340 | Maybe<AutoRestore<RefPtr<Element>>> ar; |
2341 | if (!mFirstBlurEvent) { |
2342 | ar.emplace(mFirstBlurEvent); |
2343 | mFirstBlurEvent = element; |
2344 | } |
2345 | |
2346 | const RefPtr<nsPresContext> focusedPresContext = |
2347 | GetActiveBrowsingContext() ? presShell->GetPresContext() : nullptr; |
2348 | IMEStateManager::OnChangeFocus(focusedPresContext, nullptr, |
2349 | GetFocusMoveActionCause(0)); |
2350 | |
2351 | // now adjust the actual focus, by clearing the fields in the focus manager |
2352 | // and in the window. |
2353 | mFocusedElement = nullptr; |
2354 | if (aBrowsingContextToClear) { |
2355 | nsPIDOMWindowOuter* windowToClear = aBrowsingContextToClear->GetDOMWindow(); |
2356 | if (windowToClear) { |
2357 | windowToClear->SetFocusedElement(nullptr); |
2358 | } |
2359 | } |
2360 | |
2361 | LOGCONTENT("Element %s has been blurred", element.get())if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (element.get()) { element.get()->NodeInfo()->NameAtom( )->ToUTF8String(tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test (moz_real_module, LogLevel::Debug)), 0))) { mozilla::detail:: log_print(moz_real_module, LogLevel::Debug, "Element %s has been blurred" , tag.get()); } } while (0); }; |
2362 | |
2363 | // Don't fire blur event on the root content which isn't editable. |
2364 | bool sendBlurEvent = |
2365 | element && element->IsInComposedDoc() && !IsNonFocusableRoot(element); |
2366 | if (element) { |
2367 | if (sendBlurEvent) { |
2368 | NotifyFocusStateChange(element, aElementToFocus, 0, false, false); |
2369 | } |
2370 | |
2371 | if (!aRemainActive) { |
2372 | bool windowBeingLowered = !aBrowsingContextToClear && |
2373 | !aAncestorBrowsingContextToFocus && |
2374 | aIsLeavingDocument && aAdjustWidget; |
2375 | // If the object being blurred is a remote browser, deactivate remote |
2376 | // content |
2377 | if (BrowserParent* remote = BrowserParent::GetFrom(element)) { |
2378 | 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/base/nsFocusManager.cpp" , 2378); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 2378; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
2379 | // Let's deactivate all remote browsers. |
2380 | BrowsingContext* topLevelBrowsingContext = remote->GetBrowsingContext(); |
2381 | topLevelBrowsingContext->PreOrderWalk([&](BrowsingContext* aContext) { |
2382 | if (WindowGlobalParent* windowGlobalParent = |
2383 | aContext->Canonical()->GetCurrentWindowGlobal()) { |
2384 | if (RefPtr<BrowserParent> browserParent = |
2385 | windowGlobalParent->GetBrowserParent()) { |
2386 | browserParent->Deactivate(windowBeingLowered, aActionId); |
2387 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "%s remote browser deactivated %p, %d, actionid: %" "l" "u", aContext == topLevelBrowsingContext ? "Top-level" : "OOP iframe", browserParent.get(), windowBeingLowered, aActionId ); } } while (0) |
2388 | ("%s remote browser deactivated %p, %d, actionid: %" PRIu64,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "%s remote browser deactivated %p, %d, actionid: %" "l" "u", aContext == topLevelBrowsingContext ? "Top-level" : "OOP iframe", browserParent.get(), windowBeingLowered, aActionId ); } } while (0) |
2389 | aContext == topLevelBrowsingContext ? "Top-level"do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "%s remote browser deactivated %p, %d, actionid: %" "l" "u", aContext == topLevelBrowsingContext ? "Top-level" : "OOP iframe", browserParent.get(), windowBeingLowered, aActionId ); } } while (0) |
2390 | : "OOP iframe",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "%s remote browser deactivated %p, %d, actionid: %" "l" "u", aContext == topLevelBrowsingContext ? "Top-level" : "OOP iframe", browserParent.get(), windowBeingLowered, aActionId ); } } while (0) |
2391 | browserParent.get(), windowBeingLowered, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "%s remote browser deactivated %p, %d, actionid: %" "l" "u", aContext == topLevelBrowsingContext ? "Top-level" : "OOP iframe", browserParent.get(), windowBeingLowered, aActionId ); } } while (0); |
2392 | } |
2393 | } |
2394 | }); |
2395 | } |
2396 | |
2397 | // Same as above but for out-of-process iframes |
2398 | if (BrowserBridgeChild* bbc = BrowserBridgeChild::GetFrom(element)) { |
2399 | bbc->Deactivate(windowBeingLowered, aActionId); |
2400 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Out-of-process iframe deactivated %p, %d, actionid: %" "l" "u", bbc, windowBeingLowered, aActionId); } } while (0) |
2401 | ("Out-of-process iframe deactivated %p, %d, actionid: %" PRIu64,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Out-of-process iframe deactivated %p, %d, actionid: %" "l" "u", bbc, windowBeingLowered, aActionId); } } while (0) |
2402 | bbc, windowBeingLowered, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Out-of-process iframe deactivated %p, %d, actionid: %" "l" "u", bbc, windowBeingLowered, aActionId); } } while (0); |
2403 | } |
2404 | } |
2405 | } |
2406 | |
2407 | bool result = true; |
2408 | if (sendBlurEvent) { |
2409 | // if there is an active window, update commands. If there isn't an active |
2410 | // window, then this was a blur caused by the active window being lowered, |
2411 | // so there is no need to update the commands |
2412 | if (GetActiveBrowsingContext()) { |
2413 | window->UpdateCommands(u"focus"_ns); |
2414 | } |
2415 | |
2416 | SendFocusOrBlurEvent(eBlur, presShell, element->GetComposedDoc(), element, |
2417 | false, false, aElementToFocus); |
2418 | } |
2419 | |
2420 | // if we are leaving the document or the window was lowered, make the caret |
2421 | // invisible. |
2422 | if (aIsLeavingDocument || !GetActiveBrowsingContext()) { |
2423 | SetCaretVisible(presShell, false, nullptr); |
2424 | } |
2425 | |
2426 | RefPtr<AccessibleCaretEventHub> eventHub = |
2427 | presShell->GetAccessibleCaretEventHub(); |
2428 | if (eventHub) { |
2429 | eventHub->NotifyBlur(aIsLeavingDocument || !GetActiveBrowsingContext()); |
2430 | } |
2431 | |
2432 | // at this point, it is expected that this window will be still be |
2433 | // focused, but the focused element will be null, as it was cleared before |
2434 | // the event. If this isn't the case, then something else was focused during |
2435 | // the blur event above and we should just return. However, if |
2436 | // aIsLeavingDocument is set, a new document is desired, so make sure to |
2437 | // blur the document and window. |
2438 | if (GetFocusedBrowsingContext() != window->GetBrowsingContext() || |
2439 | (mFocusedElement != nullptr && !aIsLeavingDocument)) { |
2440 | result = false; |
2441 | } else if (aIsLeavingDocument) { |
2442 | window->TakeFocus(false, 0); |
2443 | |
2444 | // clear the focus so that the ancestor frame hierarchy is in the correct |
2445 | // state. Pass true because aAncestorBrowsingContextToFocus is thought to be |
2446 | // focused at this point. |
2447 | if (aAncestorBrowsingContextToFocus) { |
2448 | nsPIDOMWindowOuter* ancestorWindowToFocus = |
2449 | aAncestorBrowsingContextToFocus->GetDOMWindow(); |
2450 | if (ancestorWindowToFocus) { |
2451 | ancestorWindowToFocus->SetFocusedElement(nullptr, 0, true); |
2452 | } |
2453 | |
2454 | // When the focus of aBrowsingContextToClear is cleared, it should |
2455 | // also clear its ancestors's focus because ancestors should no longer |
2456 | // be considered aBrowsingContextToClear is focused. |
2457 | // |
2458 | // We don't need to do this when aBrowsingContextToClear and |
2459 | // aAncestorBrowsingContextToFocus is equal because ancestors don't |
2460 | // care about this. |
2461 | if (aBrowsingContextToClear && |
2462 | aBrowsingContextToClear != aAncestorBrowsingContextToFocus) { |
2463 | AdjustWindowFocus( |
2464 | aBrowsingContextToClear, false, |
2465 | IsWindowVisible(aBrowsingContextToClear->GetDOMWindow()), aActionId, |
2466 | true /* aShouldClearAncestorFocus */, |
2467 | aAncestorBrowsingContextToFocus); |
2468 | } |
2469 | } |
2470 | |
2471 | SetFocusedWindowInternal(nullptr, aActionId); |
2472 | mFocusedElement = nullptr; |
2473 | |
2474 | RefPtr<Document> doc = window->GetExtantDoc(); |
2475 | if (doc) { |
2476 | SendFocusOrBlurEvent(eBlur, presShell, doc, doc, false); |
2477 | } |
2478 | if (!GetFocusedBrowsingContext()) { |
2479 | nsCOMPtr<nsPIDOMWindowInner> innerWindow = |
2480 | window->GetCurrentInnerWindow(); |
2481 | // MOZ_KnownLive due to bug 1506441 |
2482 | SendFocusOrBlurEvent( |
2483 | eBlur, presShell, doc, |
2484 | MOZ_KnownLive(nsGlobalWindowInner::Cast(innerWindow))(nsGlobalWindowInner::Cast(innerWindow)), false); |
2485 | } |
2486 | |
2487 | // check if a different window was focused |
2488 | result = (!GetFocusedBrowsingContext() && GetActiveBrowsingContext()); |
2489 | } else if (GetActiveBrowsingContext()) { |
2490 | // Otherwise, the blur of the element without blurring the document |
2491 | // occurred normally. Call UpdateCaret to redisplay the caret at the right |
2492 | // location within the document. This is needed to ensure that the caret |
2493 | // used for caret browsing is made visible again when an input field is |
2494 | // blurred. |
2495 | UpdateCaret(false, true, nullptr); |
2496 | } |
2497 | |
2498 | return result; |
2499 | } |
2500 | |
2501 | void nsFocusManager::ActivateRemoteFrameIfNeeded(Element& aElement, |
2502 | uint64_t aActionId) { |
2503 | if (BrowserParent* remote = BrowserParent::GetFrom(&aElement)) { |
2504 | remote->Activate(aActionId); |
2505 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Remote browser activated %p, actionid: %" "l" "u", remote, aActionId); } } while (0) |
2506 | ("Remote browser activated %p, actionid: %" PRIu64, remote, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Remote browser activated %p, actionid: %" "l" "u", remote, aActionId); } } while (0); |
2507 | } |
2508 | |
2509 | // Same as above but for out-of-process iframes |
2510 | if (BrowserBridgeChild* bbc = BrowserBridgeChild::GetFrom(&aElement)) { |
2511 | bbc->Activate(aActionId); |
2512 | LOGFOCUS(("Out-of-process iframe activated %p, actionid: %" PRIu64, bbc,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Out-of-process iframe activated %p, actionid: %" "l" "u", bbc, aActionId); } } while (0) |
2513 | aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Out-of-process iframe activated %p, actionid: %" "l" "u", bbc, aActionId); } } while (0); |
2514 | } |
2515 | } |
2516 | |
2517 | void nsFocusManager::Focus( |
2518 | nsPIDOMWindowOuter* aWindow, Element* aElement, uint32_t aFlags, |
2519 | bool aIsNewDocument, bool aFocusChanged, bool aWindowRaised, |
2520 | bool aAdjustWidget, uint64_t aActionId, |
2521 | const Maybe<BlurredElementInfo>& aBlurredElementInfo) { |
2522 | LOGFOCUS(("<<Focus begin actionid: %" PRIu64 ">>", aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "<<Focus begin actionid: %" "l" "u" ">>", aActionId); } } while (0); |
2523 | |
2524 | if (!aWindow) { |
2525 | return; |
2526 | } |
2527 | |
2528 | if (aElement && |
2529 | (aElement == mFirstFocusEvent || aElement == mFirstBlurEvent)) { |
2530 | return; |
2531 | } |
2532 | |
2533 | // Keep a reference to the presShell since dispatching the DOM event may |
2534 | // cause the document to be destroyed. |
2535 | nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell(); |
2536 | if (!docShell) { |
2537 | return; |
2538 | } |
2539 | |
2540 | const RefPtr<PresShell> presShell = docShell->GetPresShell(); |
2541 | if (!presShell) { |
2542 | return; |
2543 | } |
2544 | |
2545 | bool focusInOtherContentProcess = false; |
2546 | // Keep mochitest-browser-chrome harness happy by ignoring |
2547 | // focusInOtherContentProcess in the chrome process, because the harness |
2548 | // expects that. |
2549 | if (!XRE_IsParentProcess()) { |
2550 | if (RefPtr<nsFrameLoaderOwner> flo = do_QueryObject(aElement)) { |
2551 | // Only look at pre-existing browsing contexts. If this function is |
2552 | // called during reflow, calling GetBrowsingContext() could cause frame |
2553 | // loader initialization at a time when it isn't safe. |
2554 | if (BrowsingContext* bc = flo->GetExtantBrowsingContext()) { |
2555 | focusInOtherContentProcess = !bc->IsInProcess(); |
2556 | } |
2557 | } |
2558 | |
2559 | if (ActionIdComparableAndLower( |
2560 | aActionId, mActionIdForFocusedBrowsingContextInContent)) { |
2561 | // Unclear if this ever happens. |
2562 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to focus an element due to stale action id " "%" "l" "u" ".", aActionId); } } while (0) |
2563 | ("Ignored an attempt to focus an element due to stale action id "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to focus an element due to stale action id " "%" "l" "u" ".", aActionId); } } while (0) |
2564 | "%" PRIu64 ".",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to focus an element due to stale action id " "%" "l" "u" ".", aActionId); } } while (0) |
2565 | aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to focus an element due to stale action id " "%" "l" "u" ".", aActionId); } } while (0); |
2566 | return; |
2567 | } |
2568 | } |
2569 | |
2570 | // If the focus actually changed, set the focus method (mouse, keyboard, etc). |
2571 | // Otherwise, just get the current focus method and use that. This ensures |
2572 | // that the method is set during the document and window focus events. |
2573 | uint32_t focusMethod = aFocusChanged |
2574 | ? aFlags & METHODANDRING_MASK |
2575 | : aWindow->GetFocusMethod() | |
2576 | (aFlags & (FLAG_SHOWRING | FLAG_NOSHOWRING)); |
2577 | |
2578 | if (!IsWindowVisible(aWindow)) { |
2579 | // if the window isn't visible, for instance because it is a hidden tab, |
2580 | // update the current focus and scroll it into view but don't do anything |
2581 | // else |
2582 | if (RefPtr elementToFocus = FlushAndCheckIfFocusable(aElement, aFlags)) { |
2583 | aWindow->SetFocusedElement(elementToFocus, focusMethod); |
2584 | if (aFocusChanged) { |
2585 | ScrollIntoView(presShell, elementToFocus, aFlags); |
2586 | } |
2587 | } |
2588 | return; |
2589 | } |
2590 | |
2591 | Maybe<AutoRestore<RefPtr<Element>>> ar; |
2592 | if (!mFirstFocusEvent) { |
2593 | ar.emplace(mFirstFocusEvent); |
2594 | mFirstFocusEvent = aElement; |
2595 | } |
2596 | |
2597 | LOGCONTENT("Element %s has been focused", aElement)if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (aElement) { aElement->NodeInfo()->NameAtom()->ToUTF8String (tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "Element %s has been focused", tag.get()); } } while (0); }; |
2598 | |
2599 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0))) { |
2600 | Document* docm = aWindow->GetExtantDoc(); |
2601 | if (docm) { |
2602 | LOGCONTENT(" from %s", docm->GetRootElement())if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (docm->GetRootElement()) { docm->GetRootElement()-> NodeInfo()->NameAtom()->ToUTF8String(tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect (!!(mozilla::detail::log_test(moz_real_module, LogLevel::Debug )), 0))) { mozilla::detail::log_print(moz_real_module, LogLevel ::Debug, " from %s", tag.get()); } } while (0); }; |
2603 | } |
2604 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " [Newdoc: %d FocusChanged: %d Raised: %d Flags: %x actionid: %" "l" "u" "]", aIsNewDocument, aFocusChanged, aWindowRaised, aFlags , aActionId); } } while (0) |
2605 | (" [Newdoc: %d FocusChanged: %d Raised: %d Flags: %x actionid: %" PRIu64do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " [Newdoc: %d FocusChanged: %d Raised: %d Flags: %x actionid: %" "l" "u" "]", aIsNewDocument, aFocusChanged, aWindowRaised, aFlags , aActionId); } } while (0) |
2606 | "]",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " [Newdoc: %d FocusChanged: %d Raised: %d Flags: %x actionid: %" "l" "u" "]", aIsNewDocument, aFocusChanged, aWindowRaised, aFlags , aActionId); } } while (0) |
2607 | aIsNewDocument, aFocusChanged, aWindowRaised, aFlags, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " [Newdoc: %d FocusChanged: %d Raised: %d Flags: %x actionid: %" "l" "u" "]", aIsNewDocument, aFocusChanged, aWindowRaised, aFlags , aActionId); } } while (0); |
2608 | } |
2609 | |
2610 | if (aIsNewDocument) { |
2611 | // if this is a new document, update the parent chain of frames so that |
2612 | // focus can be traversed from the top level down to the newly focused |
2613 | // window. |
2614 | RefPtr<BrowsingContext> bc = aWindow->GetBrowsingContext(); |
2615 | AdjustWindowFocus(bc, false, IsWindowVisible(aWindow), aActionId, |
2616 | false /* aShouldClearAncestorFocus */, |
2617 | nullptr /* aAncestorBrowsingContextToFocus */); |
2618 | } |
2619 | |
2620 | // indicate that the window has taken focus. |
2621 | if (aWindow->TakeFocus(true, focusMethod)) { |
2622 | aIsNewDocument = true; |
2623 | } |
2624 | |
2625 | SetFocusedWindowInternal(aWindow, aActionId); |
2626 | |
2627 | if (aAdjustWidget && !sTestMode) { |
2628 | if (nsViewManager* vm = presShell->GetViewManager()) { |
2629 | nsCOMPtr<nsIWidget> widget = vm->GetRootWidget(); |
2630 | if (widget) |
2631 | widget->SetFocus(nsIWidget::Raise::No, aFlags & FLAG_NONSYSTEMCALLER |
2632 | ? CallerType::NonSystem |
2633 | : CallerType::System); |
2634 | } |
2635 | } |
2636 | |
2637 | // if switching to a new document, first fire the focus event on the |
2638 | // document and then the window. |
2639 | if (aIsNewDocument) { |
2640 | RefPtr<Document> doc = aWindow->GetExtantDoc(); |
2641 | // The focus change should be notified to IMEStateManager from here if: |
2642 | // * the focused element is in design mode or |
2643 | // * nobody gets focus and the document is in design mode |
2644 | // since any element whose uncomposed document is in design mode won't |
2645 | // receive focus event. |
2646 | if (doc && ((aElement && aElement->IsInDesignMode()) || |
2647 | (!aElement && doc->IsInDesignMode()))) { |
2648 | RefPtr<nsPresContext> presContext = presShell->GetPresContext(); |
2649 | IMEStateManager::OnChangeFocus(presContext, nullptr, |
2650 | GetFocusMoveActionCause(aFlags)); |
2651 | } |
2652 | if (doc && !focusInOtherContentProcess) { |
2653 | SendFocusOrBlurEvent(eFocus, presShell, doc, doc, aWindowRaised); |
2654 | } |
2655 | if (GetFocusedBrowsingContext() == aWindow->GetBrowsingContext() && |
2656 | !mFocusedElement && !focusInOtherContentProcess) { |
2657 | nsCOMPtr<nsPIDOMWindowInner> innerWindow = |
2658 | aWindow->GetCurrentInnerWindow(); |
2659 | // MOZ_KnownLive due to bug 1506441 |
2660 | SendFocusOrBlurEvent( |
2661 | eFocus, presShell, doc, |
2662 | MOZ_KnownLive(nsGlobalWindowInner::Cast(innerWindow))(nsGlobalWindowInner::Cast(innerWindow)), aWindowRaised); |
2663 | } |
2664 | } |
2665 | |
2666 | // check to ensure that the element is still focusable, and that nothing |
2667 | // else was focused during the events above. |
2668 | // Note that the focusing element may have already been moved to another |
2669 | // document/window. In that case, we should stop setting focus to it |
2670 | // because setting focus to the new window would cause redirecting focus |
2671 | // again and again. |
2672 | RefPtr elementToFocus = |
2673 | aElement && aElement->IsInComposedDoc() && |
2674 | aElement->GetComposedDoc() == aWindow->GetExtantDoc() |
2675 | ? FlushAndCheckIfFocusable(aElement, aFlags) |
2676 | : nullptr; |
2677 | if (elementToFocus && !mFocusedElement && |
2678 | GetFocusedBrowsingContext() == aWindow->GetBrowsingContext()) { |
2679 | mFocusedElement = elementToFocus; |
2680 | |
2681 | nsIContent* focusedNode = aWindow->GetFocusedElement(); |
2682 | const bool sendFocusEvent = elementToFocus->IsInComposedDoc() && |
2683 | !IsNonFocusableRoot(elementToFocus); |
2684 | const bool isRefocus = focusedNode && focusedNode == elementToFocus; |
2685 | const bool shouldShowFocusRing = |
2686 | sendFocusEvent && |
2687 | ShouldMatchFocusVisible(aWindow, *elementToFocus, aFlags); |
2688 | |
2689 | aWindow->SetFocusedElement(elementToFocus, focusMethod, false); |
2690 | |
2691 | const RefPtr<nsPresContext> presContext = presShell->GetPresContext(); |
2692 | if (sendFocusEvent) { |
2693 | NotifyFocusStateChange(elementToFocus, nullptr, aFlags, |
2694 | /* aGettingFocus = */ true, shouldShowFocusRing); |
2695 | |
2696 | // If this is a remote browser, focus its widget and activate remote |
2697 | // content. Note that we might no longer be in the same document, |
2698 | // due to the events we fired above when aIsNewDocument. |
2699 | if (presShell->GetDocument() == elementToFocus->GetComposedDoc()) { |
2700 | ActivateRemoteFrameIfNeeded(*elementToFocus, aActionId); |
2701 | } |
2702 | |
2703 | IMEStateManager::OnChangeFocus(presContext, elementToFocus, |
2704 | GetFocusMoveActionCause(aFlags)); |
2705 | |
2706 | // as long as this focus wasn't because a window was raised, update the |
2707 | // commands |
2708 | // XXXndeakin P2 someone could adjust the focus during the update |
2709 | if (!aWindowRaised) { |
2710 | aWindow->UpdateCommands(u"focus"_ns); |
2711 | } |
2712 | |
2713 | // If the focused element changed, scroll it into view |
2714 | if (aFocusChanged) { |
2715 | ScrollIntoView(presShell, elementToFocus, aFlags); |
2716 | } |
2717 | |
2718 | if (!focusInOtherContentProcess) { |
2719 | RefPtr<Document> composedDocument = elementToFocus->GetComposedDoc(); |
2720 | RefPtr<Element> relatedTargetElement = |
2721 | aBlurredElementInfo ? aBlurredElementInfo->mElement.get() : nullptr; |
2722 | SendFocusOrBlurEvent(eFocus, presShell, composedDocument, |
2723 | elementToFocus, aWindowRaised, isRefocus, |
2724 | relatedTargetElement); |
2725 | } |
2726 | } else { |
2727 | // We should notify IMEStateManager of actual focused element even if it |
2728 | // won't get focus event because the other IMEStateManager users do not |
2729 | // want to depend on this check, but IMEStateManager wants to verify |
2730 | // passed focused element for avoidng to overrride nested calls. |
2731 | IMEStateManager::OnChangeFocus(presContext, elementToFocus, |
2732 | GetFocusMoveActionCause(aFlags)); |
2733 | if (!aWindowRaised) { |
2734 | aWindow->UpdateCommands(u"focus"_ns); |
2735 | } |
2736 | if (aFocusChanged) { |
2737 | // If the focused element changed, scroll it into view |
2738 | ScrollIntoView(presShell, elementToFocus, aFlags); |
2739 | } |
2740 | } |
2741 | } else { |
2742 | if (!mFocusedElement && mFocusedWindow == aWindow) { |
2743 | // When there is no focused element, IMEStateManager needs to adjust IME |
2744 | // enabled state with the document. |
2745 | RefPtr<nsPresContext> presContext = presShell->GetPresContext(); |
2746 | IMEStateManager::OnChangeFocus(presContext, nullptr, |
2747 | GetFocusMoveActionCause(aFlags)); |
2748 | } |
2749 | |
2750 | if (!aWindowRaised) { |
2751 | aWindow->UpdateCommands(u"focus"_ns); |
2752 | } |
2753 | } |
2754 | |
2755 | // update the caret visibility and position to match the newly focused |
2756 | // element. However, don't update the position if this was a focus due to a |
2757 | // mouse click as the selection code would already have moved the caret as |
2758 | // needed. If this is a different document than was focused before, also |
2759 | // update the caret's visibility. If this is the same document, the caret |
2760 | // visibility should be the same as before so there is no need to update it. |
2761 | if (mFocusedElement == elementToFocus) { |
2762 | RefPtr<Element> focusedElement = mFocusedElement; |
2763 | UpdateCaret(aFocusChanged && !(aFlags & FLAG_BYMOUSE), aIsNewDocument, |
2764 | focusedElement); |
2765 | } |
2766 | } |
2767 | |
2768 | class FocusBlurEvent : public Runnable { |
2769 | public: |
2770 | FocusBlurEvent(EventTarget* aTarget, EventMessage aEventMessage, |
2771 | nsPresContext* aContext, bool aWindowRaised, bool aIsRefocus, |
2772 | EventTarget* aRelatedTarget) |
2773 | : mozilla::Runnable("FocusBlurEvent"), |
2774 | mTarget(aTarget), |
2775 | mContext(aContext), |
2776 | mEventMessage(aEventMessage), |
2777 | mWindowRaised(aWindowRaised), |
2778 | mIsRefocus(aIsRefocus), |
2779 | mRelatedTarget(aRelatedTarget) {} |
2780 | |
2781 | // TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1415230, bug 1535398) |
2782 | MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHODvirtual nsresult Run() override { |
2783 | InternalFocusEvent event(true, mEventMessage); |
2784 | event.mFlags.mBubbles = false; |
2785 | event.mFlags.mCancelable = false; |
2786 | event.mFromRaise = mWindowRaised; |
2787 | event.mIsRefocus = mIsRefocus; |
2788 | event.mRelatedTarget = mRelatedTarget; |
2789 | return EventDispatcher::Dispatch(mTarget, mContext, &event); |
2790 | } |
2791 | |
2792 | const nsCOMPtr<EventTarget> mTarget; |
2793 | const RefPtr<nsPresContext> mContext; |
2794 | EventMessage mEventMessage; |
2795 | bool mWindowRaised; |
2796 | bool mIsRefocus; |
2797 | nsCOMPtr<EventTarget> mRelatedTarget; |
2798 | }; |
2799 | |
2800 | class FocusInOutEvent : public Runnable { |
2801 | public: |
2802 | FocusInOutEvent(EventTarget* aTarget, EventMessage aEventMessage, |
2803 | nsPresContext* aContext, |
2804 | nsPIDOMWindowOuter* aOriginalFocusedWindow, |
2805 | nsIContent* aOriginalFocusedContent, |
2806 | EventTarget* aRelatedTarget) |
2807 | : mozilla::Runnable("FocusInOutEvent"), |
2808 | mTarget(aTarget), |
2809 | mContext(aContext), |
2810 | mEventMessage(aEventMessage), |
2811 | mOriginalFocusedWindow(aOriginalFocusedWindow), |
2812 | mOriginalFocusedContent(aOriginalFocusedContent), |
2813 | mRelatedTarget(aRelatedTarget) {} |
2814 | |
2815 | // TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1415230, bug 1535398) |
2816 | MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHODvirtual nsresult Run() override { |
2817 | nsCOMPtr<nsIContent> originalWindowFocus = |
2818 | mOriginalFocusedWindow ? mOriginalFocusedWindow->GetFocusedElement() |
2819 | : nullptr; |
2820 | // Blink does not check that focus is the same after blur, but WebKit does. |
2821 | // Opt to follow Blink's behavior (see bug 687787). |
2822 | if (mEventMessage == eFocusOut || |
2823 | originalWindowFocus == mOriginalFocusedContent) { |
2824 | InternalFocusEvent event(true, mEventMessage); |
2825 | event.mFlags.mBubbles = true; |
2826 | event.mFlags.mCancelable = false; |
2827 | event.mRelatedTarget = mRelatedTarget; |
2828 | return EventDispatcher::Dispatch(mTarget, mContext, &event); |
2829 | } |
2830 | return NS_OK; |
2831 | } |
2832 | |
2833 | const nsCOMPtr<EventTarget> mTarget; |
2834 | const RefPtr<nsPresContext> mContext; |
2835 | EventMessage mEventMessage; |
2836 | nsCOMPtr<nsPIDOMWindowOuter> mOriginalFocusedWindow; |
2837 | nsCOMPtr<nsIContent> mOriginalFocusedContent; |
2838 | nsCOMPtr<EventTarget> mRelatedTarget; |
2839 | }; |
2840 | |
2841 | static Document* GetDocumentHelper(EventTarget* aTarget) { |
2842 | if (!aTarget) { |
2843 | return nullptr; |
2844 | } |
2845 | if (const nsINode* node = nsINode::FromEventTarget(aTarget)) { |
2846 | return node->OwnerDoc(); |
2847 | } |
2848 | nsPIDOMWindowInner* win = nsPIDOMWindowInner::FromEventTarget(aTarget); |
2849 | return win ? win->GetExtantDoc() : nullptr; |
2850 | } |
2851 | |
2852 | void nsFocusManager::FireFocusInOrOutEvent( |
2853 | EventMessage aEventMessage, PresShell* aPresShell, EventTarget* aTarget, |
2854 | nsPIDOMWindowOuter* aCurrentFocusedWindow, |
2855 | nsIContent* aCurrentFocusedContent, EventTarget* aRelatedTarget) { |
2856 | NS_ASSERTION(aEventMessage == eFocusIn || aEventMessage == eFocusOut,do { if (!(aEventMessage == eFocusIn || aEventMessage == eFocusOut )) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Wrong event type for FireFocusInOrOutEvent" , "aEventMessage == eFocusIn || aEventMessage == eFocusOut", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2857); MOZ_PretendNoReturn(); } } while (0) |
2857 | "Wrong event type for FireFocusInOrOutEvent")do { if (!(aEventMessage == eFocusIn || aEventMessage == eFocusOut )) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Wrong event type for FireFocusInOrOutEvent" , "aEventMessage == eFocusIn || aEventMessage == eFocusOut", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2857); MOZ_PretendNoReturn(); } } while (0); |
2858 | |
2859 | nsContentUtils::AddScriptRunner(new FocusInOutEvent( |
2860 | aTarget, aEventMessage, aPresShell->GetPresContext(), |
2861 | aCurrentFocusedWindow, aCurrentFocusedContent, aRelatedTarget)); |
2862 | } |
2863 | |
2864 | void nsFocusManager::SendFocusOrBlurEvent(EventMessage aEventMessage, |
2865 | PresShell* aPresShell, |
2866 | Document* aDocument, |
2867 | EventTarget* aTarget, |
2868 | bool aWindowRaised, bool aIsRefocus, |
2869 | EventTarget* aRelatedTarget) { |
2870 | NS_ASSERTION(aEventMessage == eFocus || aEventMessage == eBlur,do { if (!(aEventMessage == eFocus || aEventMessage == eBlur) ) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Wrong event type for SendFocusOrBlurEvent" , "aEventMessage == eFocus || aEventMessage == eBlur", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2871); MOZ_PretendNoReturn(); } } while (0) |
2871 | "Wrong event type for SendFocusOrBlurEvent")do { if (!(aEventMessage == eFocus || aEventMessage == eBlur) ) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Wrong event type for SendFocusOrBlurEvent" , "aEventMessage == eFocus || aEventMessage == eBlur", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 2871); MOZ_PretendNoReturn(); } } while (0); |
2872 | |
2873 | nsCOMPtr<Document> eventTargetDoc = GetDocumentHelper(aTarget); |
2874 | nsCOMPtr<Document> relatedTargetDoc = GetDocumentHelper(aRelatedTarget); |
2875 | |
2876 | // set aRelatedTarget to null if it's not in the same document as aTarget |
2877 | if (eventTargetDoc != relatedTargetDoc) { |
2878 | aRelatedTarget = nullptr; |
2879 | } |
2880 | |
2881 | if (aDocument && aDocument->EventHandlingSuppressed()) { |
2882 | // if this event was already queued, remove it and append it to the end |
2883 | mDelayedBlurFocusEvents.RemoveElementsBy([&](const auto& event) { |
2884 | return event.mEventMessage == aEventMessage && |
2885 | event.mPresShell == aPresShell && event.mDocument == aDocument && |
2886 | event.mTarget == aTarget && event.mRelatedTarget == aRelatedTarget; |
2887 | }); |
2888 | |
2889 | mDelayedBlurFocusEvents.EmplaceBack(aEventMessage, aPresShell, aDocument, |
2890 | aTarget, aRelatedTarget); |
2891 | return; |
2892 | } |
2893 | |
2894 | // If mDelayedBlurFocusEvents queue is not empty, check if there are events |
2895 | // that belongs to this doc, if yes, fire them first. |
2896 | if (aDocument && !aDocument->EventHandlingSuppressed() && |
2897 | mDelayedBlurFocusEvents.Length()) { |
2898 | FireDelayedEvents(aDocument); |
2899 | } |
2900 | |
2901 | FireFocusOrBlurEvent(aEventMessage, aPresShell, aTarget, aWindowRaised, |
2902 | aIsRefocus, aRelatedTarget); |
2903 | } |
2904 | |
2905 | void nsFocusManager::FireFocusOrBlurEvent(EventMessage aEventMessage, |
2906 | PresShell* aPresShell, |
2907 | EventTarget* aTarget, |
2908 | bool aWindowRaised, bool aIsRefocus, |
2909 | EventTarget* aRelatedTarget) { |
2910 | nsCOMPtr<nsPIDOMWindowOuter> currentWindow = mFocusedWindow; |
2911 | nsCOMPtr<nsPIDOMWindowInner> targetWindow = do_QueryInterface(aTarget); |
2912 | nsCOMPtr<Document> targetDocument = do_QueryInterface(aTarget); |
2913 | nsCOMPtr<nsIContent> currentFocusedContent = |
2914 | currentWindow ? currentWindow->GetFocusedElement() : nullptr; |
2915 | |
2916 | #ifdef ACCESSIBILITY1 |
2917 | nsAccessibilityService* accService = GetAccService(); |
2918 | if (accService) { |
2919 | if (aEventMessage == eFocus) { |
2920 | accService->NotifyOfDOMFocus(aTarget); |
2921 | } else { |
2922 | accService->NotifyOfDOMBlur(aTarget); |
2923 | } |
2924 | } |
2925 | #endif |
2926 | |
2927 | aPresShell->ScheduleContentRelevancyUpdate( |
2928 | ContentRelevancyReason::FocusInSubtree); |
2929 | |
2930 | nsContentUtils::AddScriptRunner( |
2931 | new FocusBlurEvent(aTarget, aEventMessage, aPresShell->GetPresContext(), |
2932 | aWindowRaised, aIsRefocus, aRelatedTarget)); |
2933 | |
2934 | // Check that the target is not a window or document before firing |
2935 | // focusin/focusout. Other browsers do not fire focusin/focusout on window, |
2936 | // despite being required in the spec, so follow their behavior. |
2937 | // |
2938 | // As for document, we should not even fire focus/blur, but until then, we |
2939 | // need this check. targetDocument should be removed once bug 1228802 is |
2940 | // resolved. |
2941 | if (!targetWindow && !targetDocument) { |
2942 | EventMessage focusInOrOutMessage = |
2943 | aEventMessage == eFocus ? eFocusIn : eFocusOut; |
2944 | FireFocusInOrOutEvent(focusInOrOutMessage, aPresShell, aTarget, |
2945 | currentWindow, currentFocusedContent, aRelatedTarget); |
2946 | } |
2947 | } |
2948 | |
2949 | void nsFocusManager::ScrollIntoView(PresShell* aPresShell, nsIContent* aContent, |
2950 | uint32_t aFlags) { |
2951 | if (aFlags & FLAG_NOSCROLL) { |
2952 | return; |
2953 | } |
2954 | |
2955 | // If the noscroll flag isn't set, scroll the newly focused element into view. |
2956 | const ScrollAxis axis(WhereToScroll::Center, WhenToScroll::IfNotVisible); |
2957 | aPresShell->ScrollContentIntoView(aContent, axis, axis, |
2958 | ScrollFlags::ScrollOverflowHidden); |
2959 | // Scroll the input / textarea selection into view, unless focused with the |
2960 | // mouse, see bug 572649. |
2961 | if (aFlags & FLAG_BYMOUSE) { |
2962 | return; |
2963 | } |
2964 | // ScrollContentIntoView flushes layout, so no need to flush again here. |
2965 | if (nsTextControlFrame* tf = do_QueryFrame(aContent->GetPrimaryFrame())) { |
2966 | tf->ScrollSelectionIntoViewAsync(nsTextControlFrame::ScrollAncestors::Yes); |
2967 | } |
2968 | } |
2969 | |
2970 | void nsFocusManager::RaiseWindow(nsPIDOMWindowOuter* aWindow, |
2971 | CallerType aCallerType, uint64_t aActionId) { |
2972 | // don't raise windows that are already raised or are in the process of |
2973 | // being lowered |
2974 | |
2975 | if (!aWindow || aWindow == mWindowBeingLowered) { |
2976 | return; |
2977 | } |
2978 | |
2979 | if (XRE_IsParentProcess()) { |
2980 | if (aWindow == mActiveWindow) { |
2981 | return; |
2982 | } |
2983 | } else { |
2984 | BrowsingContext* bc = aWindow->GetBrowsingContext(); |
2985 | // TODO: Deeper OOP frame hierarchies are |
2986 | // https://bugzilla.mozilla.org/show_bug.cgi?id=1661227 |
2987 | if (bc == GetActiveBrowsingContext()) { |
2988 | return; |
2989 | } |
2990 | if (bc == GetFocusedBrowsingContext()) { |
2991 | return; |
2992 | } |
2993 | } |
2994 | |
2995 | if (sTestMode) { |
2996 | // In test mode, emulate raising the window. WindowRaised takes |
2997 | // care of lowering the present active window. This happens in |
2998 | // a separate runnable to avoid touching multiple windows in |
2999 | // the current runnable. |
3000 | |
3001 | nsCOMPtr<nsPIDOMWindowOuter> window(aWindow); |
3002 | RefPtr<nsFocusManager> self(this); |
3003 | NS_DispatchToCurrentThread(NS_NewRunnableFunction( |
3004 | "nsFocusManager::RaiseWindow", |
3005 | // TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1770093) |
3006 | [self, window]() MOZ_CAN_RUN_SCRIPT_BOUNDARY -> void { |
3007 | self->WindowRaised(window, GenerateFocusActionId()); |
3008 | })); |
3009 | return; |
3010 | } |
3011 | |
3012 | if (XRE_IsContentProcess()) { |
3013 | BrowsingContext* bc = aWindow->GetBrowsingContext(); |
3014 | if (!bc->IsTop()) { |
3015 | // Assume the raise below will succeed and run the raising synchronously |
3016 | // in this process to make the focus event that is observable in this |
3017 | // process fire in the right order relative to mouseup when we are here |
3018 | // thanks to a mousedown. |
3019 | WindowRaised(aWindow, aActionId); |
3020 | } |
3021 | } |
3022 | |
3023 | #if defined(XP_WIN) |
3024 | // Windows would rather we focus the child widget, otherwise, the toplevel |
3025 | // widget will always end up being focused. Fortunately, focusing the child |
3026 | // widget will also have the effect of raising the window this widget is in. |
3027 | // But on other platforms, we can just focus the toplevel widget to raise |
3028 | // the window. |
3029 | nsCOMPtr<nsPIDOMWindowOuter> childWindow; |
3030 | GetFocusedDescendant(aWindow, eIncludeAllDescendants, |
3031 | getter_AddRefs(childWindow)); |
3032 | if (!childWindow) { |
3033 | childWindow = aWindow; |
3034 | } |
3035 | |
3036 | nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell(); |
3037 | if (!docShell) { |
3038 | return; |
3039 | } |
3040 | |
3041 | PresShell* presShell = docShell->GetPresShell(); |
3042 | if (!presShell) { |
3043 | return; |
3044 | } |
3045 | |
3046 | if (nsViewManager* vm = presShell->GetViewManager()) { |
3047 | nsCOMPtr<nsIWidget> widget = vm->GetRootWidget(); |
3048 | if (widget) { |
3049 | widget->SetFocus(nsIWidget::Raise::Yes, aCallerType); |
3050 | } |
3051 | } |
3052 | #else |
3053 | nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = |
3054 | do_QueryInterface(aWindow->GetDocShell()); |
3055 | if (treeOwnerAsWin) { |
3056 | nsCOMPtr<nsIWidget> widget; |
3057 | treeOwnerAsWin->GetMainWidget(getter_AddRefs(widget)); |
3058 | if (widget) { |
3059 | widget->SetFocus(nsIWidget::Raise::Yes, aCallerType); |
3060 | } |
3061 | } |
3062 | #endif |
3063 | } |
3064 | |
3065 | void nsFocusManager::UpdateCaretForCaretBrowsingMode() { |
3066 | RefPtr<Element> focusedElement = mFocusedElement; |
3067 | UpdateCaret(false, true, focusedElement); |
3068 | } |
3069 | |
3070 | void nsFocusManager::UpdateCaret(bool aMoveCaretToFocus, bool aUpdateVisibility, |
3071 | nsIContent* aContent) { |
3072 | LOGFOCUS(("Update Caret: %d %d", aMoveCaretToFocus, aUpdateVisibility))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Update Caret: %d %d" , aMoveCaretToFocus, aUpdateVisibility); } } while (0); |
3073 | |
3074 | if (!mFocusedWindow) { |
3075 | return; |
3076 | } |
3077 | |
3078 | // this is called when a document is focused or when the caretbrowsing |
3079 | // preference is changed |
3080 | nsCOMPtr<nsIDocShell> focusedDocShell = mFocusedWindow->GetDocShell(); |
3081 | if (!focusedDocShell) { |
3082 | return; |
3083 | } |
3084 | |
3085 | if (focusedDocShell->ItemType() == nsIDocShellTreeItem::typeChrome) { |
3086 | return; // Never browse with caret in chrome |
3087 | } |
3088 | |
3089 | bool browseWithCaret = Preferences::GetBool("accessibility.browsewithcaret"); |
3090 | |
3091 | const RefPtr<PresShell> presShell = focusedDocShell->GetPresShell(); |
3092 | if (!presShell) { |
3093 | return; |
3094 | } |
3095 | |
3096 | // If this is an editable document which isn't contentEditable, or a |
3097 | // contentEditable document and the node to focus is contentEditable, |
3098 | // return, so that we don't mess with caret visibility. |
3099 | bool isEditable = false; |
3100 | focusedDocShell->GetEditable(&isEditable); |
3101 | |
3102 | if (isEditable) { |
3103 | Document* doc = presShell->GetDocument(); |
3104 | |
3105 | bool isContentEditableDoc = |
3106 | doc && |
3107 | doc->GetEditingState() == Document::EditingState::eContentEditable; |
3108 | |
3109 | bool isFocusEditable = aContent && aContent->HasFlag(NODE_IS_EDITABLE); |
3110 | if (!isContentEditableDoc || isFocusEditable) { |
3111 | return; |
3112 | } |
3113 | } |
3114 | |
3115 | if (!isEditable && aMoveCaretToFocus) { |
3116 | MoveCaretToFocus(presShell, aContent); |
3117 | } |
3118 | |
3119 | // The above MoveCaretToFocus call may run scripts which |
3120 | // may clear mFocusWindow |
3121 | if (!mFocusedWindow) { |
3122 | return; |
3123 | } |
3124 | |
3125 | if (!aUpdateVisibility) { |
3126 | return; |
3127 | } |
3128 | |
3129 | // XXXndeakin this doesn't seem right. It should be checking for this only |
3130 | // on the nearest ancestor frame which is a chrome frame. But this is |
3131 | // what the existing code does, so just leave it for now. |
3132 | if (!browseWithCaret) { |
3133 | nsCOMPtr<Element> docElement = mFocusedWindow->GetFrameElementInternal(); |
3134 | if (docElement) |
3135 | browseWithCaret = docElement->AttrValueIs( |
3136 | kNameSpaceID_None, nsGkAtoms::showcaret, u"true"_ns, eCaseMatters); |
3137 | } |
3138 | |
3139 | SetCaretVisible(presShell, browseWithCaret, aContent); |
3140 | } |
3141 | |
3142 | void nsFocusManager::MoveCaretToFocus(PresShell* aPresShell, |
3143 | nsIContent* aContent) { |
3144 | nsCOMPtr<Document> doc = aPresShell->GetDocument(); |
3145 | if (doc) { |
3146 | RefPtr<nsFrameSelection> frameSelection = aPresShell->FrameSelection(); |
3147 | RefPtr<Selection> domSelection = |
3148 | frameSelection->GetSelection(SelectionType::eNormal); |
3149 | if (domSelection) { |
3150 | // First clear the selection. This way, if there is no currently focused |
3151 | // content, the selection will just be cleared. |
3152 | domSelection->RemoveAllRanges(IgnoreErrors()); |
3153 | if (aContent) { |
3154 | ErrorResult rv; |
3155 | RefPtr<nsRange> newRange = doc->CreateRange(rv); |
3156 | if (NS_WARN_IF(rv.Failed())NS_warn_if_impl(rv.Failed(), "rv.Failed()", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3156)) { |
3157 | rv.SuppressException(); |
3158 | return; |
3159 | } |
3160 | |
3161 | // Set the range to the start of the currently focused node |
3162 | // Make sure it's collapsed |
3163 | newRange->SelectNodeContents(*aContent, IgnoreErrors()); |
3164 | |
3165 | if (!aContent->GetFirstChild() || |
3166 | aContent->IsHTMLFormControlElement()) { |
3167 | // If current focus node is a leaf, set range to before the |
3168 | // node by using the parent as a container. |
3169 | // This prevents it from appearing as selected. |
3170 | newRange->SetStartBefore(*aContent, IgnoreErrors()); |
3171 | newRange->SetEndBefore(*aContent, IgnoreErrors()); |
3172 | } |
3173 | domSelection->AddRangeAndSelectFramesAndNotifyListeners(*newRange, |
3174 | IgnoreErrors()); |
3175 | domSelection->CollapseToStart(IgnoreErrors()); |
3176 | } |
3177 | } |
3178 | } |
3179 | } |
3180 | |
3181 | nsresult nsFocusManager::SetCaretVisible(PresShell* aPresShell, bool aVisible, |
3182 | nsIContent* aContent) { |
3183 | // When browsing with caret, make sure caret is visible after new focus |
3184 | // Return early if there is no caret. This can happen for the testcase |
3185 | // for bug 308025 where a window is closed in a blur handler. |
3186 | RefPtr<nsCaret> caret = aPresShell->GetCaret(); |
3187 | if (!caret) { |
3188 | return NS_OK; |
3189 | } |
3190 | |
3191 | bool caretVisible = caret->IsVisible(); |
3192 | if (!aVisible && !caretVisible) { |
3193 | return NS_OK; |
3194 | } |
3195 | |
3196 | RefPtr<nsFrameSelection> frameSelection; |
3197 | if (aContent) { |
3198 | NS_ASSERTION(aContent->GetComposedDoc() == aPresShell->GetDocument(),do { if (!(aContent->GetComposedDoc() == aPresShell->GetDocument ())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Wrong document?", "aContent->GetComposedDoc() == aPresShell->GetDocument()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3199); MOZ_PretendNoReturn(); } } while (0) |
3199 | "Wrong document?")do { if (!(aContent->GetComposedDoc() == aPresShell->GetDocument ())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Wrong document?", "aContent->GetComposedDoc() == aPresShell->GetDocument()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3199); MOZ_PretendNoReturn(); } } while (0); |
3200 | nsIFrame* focusFrame = aContent->GetPrimaryFrame(); |
3201 | if (focusFrame) { |
3202 | frameSelection = focusFrame->GetFrameSelection(); |
3203 | } |
3204 | } |
3205 | |
3206 | RefPtr<nsFrameSelection> docFrameSelection = aPresShell->FrameSelection(); |
3207 | |
3208 | if (docFrameSelection && caret && |
3209 | (frameSelection == docFrameSelection || !aContent)) { |
3210 | Selection* domSelection = |
3211 | docFrameSelection->GetSelection(SelectionType::eNormal); |
3212 | if (domSelection) { |
3213 | // First, hide the caret to prevent attempting to show it in |
3214 | // SetCaretDOMSelection |
3215 | aPresShell->SetCaretEnabled(false); |
3216 | |
3217 | // Caret must blink on non-editable elements |
3218 | caret->SetIgnoreUserModify(true); |
3219 | // Tell the caret which selection to use |
3220 | caret->SetSelection(domSelection); |
3221 | |
3222 | // In content, we need to set the caret. The only special case is edit |
3223 | // fields, which have a different frame selection from the document. |
3224 | // They will take care of making the caret visible themselves. |
3225 | |
3226 | aPresShell->SetCaretReadOnly(false); |
3227 | aPresShell->SetCaretEnabled(aVisible); |
3228 | } |
3229 | } |
3230 | |
3231 | return NS_OK; |
3232 | } |
3233 | |
3234 | void nsFocusManager::GetSelectionLocation(Document* aDocument, |
3235 | PresShell* aPresShell, |
3236 | nsIContent** aStartContent, |
3237 | nsIContent** aEndContent) { |
3238 | *aStartContent = *aEndContent = nullptr; |
3239 | |
3240 | nsPresContext* presContext = aPresShell->GetPresContext(); |
3241 | NS_ASSERTION(presContext, "mPresContent is null!!")do { if (!(presContext)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "mPresContent is null!!" , "presContext", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3241); MOZ_PretendNoReturn(); } } while (0); |
3242 | |
3243 | RefPtr<Selection> domSelection = |
3244 | aPresShell->ConstFrameSelection()->GetSelection(SelectionType::eNormal); |
3245 | if (!domSelection) { |
3246 | return; |
3247 | } |
3248 | |
3249 | const nsRange* domRange = domSelection->GetRangeAt(0); |
3250 | if (!domRange || !domRange->IsPositioned()) { |
3251 | return; |
3252 | } |
3253 | nsIContent* start = nsIContent::FromNode(domRange->GetStartContainer()); |
3254 | nsIContent* end = nsIContent::FromNode(domRange->GetEndContainer()); |
3255 | if (nsIContent* child = domRange->StartRef().GetChildAtOffset()) { |
3256 | start = child; |
3257 | } |
3258 | if (nsIContent* child = domRange->EndRef().GetChildAtOffset()) { |
3259 | end = child; |
3260 | } |
3261 | |
3262 | // Next check to see if our caret is at the very end of a text node. If so, |
3263 | // the caret is actually sitting in front of the next logical frame's primary |
3264 | // node - so for this case we need to change the content to that node. |
3265 | // Note that if the text does not have text frame, we do not need to retreive |
3266 | // caret frame. This could occur if text frame has only collapsisble white- |
3267 | // spaces and is around a block boundary or an ancestor of it is invisible. |
3268 | // XXX If there is a visible text sibling, should we return it in the former |
3269 | // case? |
3270 | if (auto* text = Text::FromNodeOrNull(start); |
3271 | text && text->GetPrimaryFrame() && |
3272 | text->TextDataLength() == domRange->StartOffset() && |
3273 | domSelection->IsCollapsed()) { |
3274 | nsIFrame* startFrame = start->GetPrimaryFrame(); |
3275 | // Yes, indeed we were at the end of the last node |
3276 | nsIFrame* limiter = |
3277 | domSelection && domSelection->GetAncestorLimiter() |
3278 | ? domSelection->GetAncestorLimiter()->GetPrimaryFrame() |
3279 | : nullptr; |
3280 | nsFrameIterator frameIterator(presContext, startFrame, |
3281 | nsFrameIterator::Type::Leaf, |
3282 | false, // aVisual |
3283 | false, // aLockInScrollView |
3284 | true, // aFollowOOFs |
3285 | false, // aSkipPopupChecks |
3286 | limiter); |
3287 | |
3288 | nsIFrame* newCaretFrame = nullptr; |
3289 | nsIContent* newCaretContent = start; |
3290 | const bool endOfSelectionInStartNode = start == end; |
3291 | do { |
3292 | // Continue getting the next frame until the primary content for the |
3293 | // frame we are on changes - we don't want to be stuck in the same |
3294 | // place |
3295 | frameIterator.Next(); |
3296 | newCaretFrame = frameIterator.CurrentItem(); |
3297 | if (!newCaretFrame) { |
3298 | break; |
3299 | } |
3300 | newCaretContent = newCaretFrame->GetContent(); |
3301 | } while (!newCaretContent || newCaretContent == start); |
3302 | |
3303 | if (newCaretFrame && newCaretContent) { |
3304 | // If the caret is exactly at the same position of the new frame, |
3305 | // then we can use the newCaretFrame and newCaretContent for our |
3306 | // position |
3307 | nsRect caretRect; |
3308 | if (nsIFrame* frame = nsCaret::GetGeometry(domSelection, &caretRect)) { |
3309 | nsPoint caretWidgetOffset; |
3310 | nsIWidget* widget = frame->GetNearestWidget(caretWidgetOffset); |
3311 | caretRect.MoveBy(caretWidgetOffset); |
3312 | nsPoint newCaretOffset; |
3313 | nsIWidget* newCaretWidget = |
3314 | newCaretFrame->GetNearestWidget(newCaretOffset); |
3315 | if (widget == newCaretWidget && caretRect.TopLeft() == newCaretOffset) { |
3316 | // The caret is at the start of the new element. |
3317 | startFrame = newCaretFrame; |
Value stored to 'startFrame' is never read | |
3318 | start = newCaretContent; |
3319 | if (endOfSelectionInStartNode) { |
3320 | end = newCaretContent; // Ensure end of selection is |
3321 | // not before start |
3322 | } |
3323 | } |
3324 | } |
3325 | } |
3326 | } |
3327 | |
3328 | NS_IF_ADDREF(*aStartContent = start)ns_if_addref(*aStartContent = start); |
3329 | NS_IF_ADDREF(*aEndContent = end)ns_if_addref(*aEndContent = end); |
3330 | } |
3331 | |
3332 | nsresult nsFocusManager::DetermineElementToMoveFocus( |
3333 | nsPIDOMWindowOuter* aWindow, nsIContent* aStartContent, int32_t aType, |
3334 | bool aNoParentTraversal, bool aNavigateByKey, nsIContent** aNextContent) { |
3335 | *aNextContent = nullptr; |
3336 | |
3337 | // This is used for document navigation only. It will be set to true if we |
3338 | // start navigating from a starting point. If this starting point is near the |
3339 | // end of the document (for example, an element on a statusbar), and there |
3340 | // are no child documents or panels before the end of the document, then we |
3341 | // will need to ensure that we don't consider the root chrome window when we |
3342 | // loop around and instead find the next child document/panel, as focus is |
3343 | // already in that window. This flag will be cleared once we navigate into |
3344 | // another document. |
3345 | bool mayFocusRoot = (aStartContent != nullptr); |
3346 | |
3347 | nsCOMPtr<nsIContent> startContent = aStartContent; |
3348 | if (!startContent && aType != MOVEFOCUS_CARET) { |
3349 | if (aType == MOVEFOCUS_FORWARDDOC || aType == MOVEFOCUS_BACKWARDDOC) { |
3350 | // When moving between documents, make sure to get the right |
3351 | // starting content in a descendant. |
3352 | nsCOMPtr<nsPIDOMWindowOuter> focusedWindow; |
3353 | startContent = GetFocusedDescendant(aWindow, eIncludeAllDescendants, |
3354 | getter_AddRefs(focusedWindow)); |
3355 | } else if (aType != MOVEFOCUS_LASTDOC) { |
3356 | // Otherwise, start at the focused node. If MOVEFOCUS_LASTDOC is used, |
3357 | // then we are document-navigating backwards from chrome to the content |
3358 | // process, and we don't want to use this so that we start from the end |
3359 | // of the document. |
3360 | startContent = aWindow->GetFocusedElement(); |
3361 | } |
3362 | } |
3363 | |
3364 | nsCOMPtr<Document> doc; |
3365 | if (startContent) |
3366 | doc = startContent->GetComposedDoc(); |
3367 | else |
3368 | doc = aWindow->GetExtantDoc(); |
3369 | if (!doc) return NS_OK; |
3370 | |
3371 | // True if we are navigating by document (F6/Shift+F6) or false if we are |
3372 | // navigating by element (Tab/Shift+Tab). |
3373 | const bool forDocumentNavigation = |
3374 | aType == MOVEFOCUS_FORWARDDOC || aType == MOVEFOCUS_BACKWARDDOC || |
3375 | aType == MOVEFOCUS_FIRSTDOC || aType == MOVEFOCUS_LASTDOC; |
3376 | |
3377 | // If moving to the root or first document, find the root element and return. |
3378 | if (aType == MOVEFOCUS_ROOT || aType == MOVEFOCUS_FIRSTDOC) { |
3379 | NS_IF_ADDREF(*aNextContent = GetRootForFocus(aWindow, doc, false, false))ns_if_addref(*aNextContent = GetRootForFocus(aWindow, doc, false , false)); |
3380 | if (!*aNextContent && aType == MOVEFOCUS_FIRSTDOC) { |
3381 | // When looking for the first document, if the root wasn't focusable, |
3382 | // find the next focusable document. |
3383 | aType = MOVEFOCUS_FORWARDDOC; |
3384 | } else { |
3385 | return NS_OK; |
3386 | } |
3387 | } |
3388 | |
3389 | // rootElement and presShell may be set to sub-document's ones so that they |
3390 | // cannot be `const`. |
3391 | RefPtr<Element> rootElement = doc->GetRootElement(); |
3392 | NS_ENSURE_TRUE(rootElement, NS_OK)do { if ((__builtin_expect(!!(!(rootElement)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "rootElement" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3392); return NS_OK; } } while (false); |
3393 | |
3394 | RefPtr<PresShell> presShell = doc->GetPresShell(); |
3395 | NS_ENSURE_TRUE(presShell, NS_OK)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/base/nsFocusManager.cpp" , 3395); return NS_OK; } } while (false); |
3396 | |
3397 | if (aType == MOVEFOCUS_FIRST) { |
3398 | if (!aStartContent) { |
3399 | startContent = rootElement; |
3400 | } |
3401 | return GetNextTabbableContent(presShell, startContent, nullptr, |
3402 | startContent, true, 1, false, false, |
3403 | aNavigateByKey, false, false, aNextContent); |
3404 | } |
3405 | if (aType == MOVEFOCUS_LAST) { |
3406 | if (!aStartContent) { |
3407 | startContent = rootElement; |
3408 | } |
3409 | return GetNextTabbableContent(presShell, startContent, nullptr, |
3410 | startContent, false, 0, false, false, |
3411 | aNavigateByKey, false, false, aNextContent); |
3412 | } |
3413 | |
3414 | bool forward = (aType == MOVEFOCUS_FORWARD || aType == MOVEFOCUS_FORWARDDOC || |
3415 | aType == MOVEFOCUS_CARET); |
3416 | bool doNavigation = true; |
3417 | bool ignoreTabIndex = false; |
3418 | // when a popup is open, we want to ensure that tab navigation occurs only |
3419 | // within the most recently opened panel. If a popup is open, its frame will |
3420 | // be stored in popupFrame. |
3421 | nsIFrame* popupFrame = nullptr; |
3422 | |
3423 | int32_t tabIndex = forward ? 1 : 0; |
3424 | if (startContent) { |
3425 | nsIFrame* frame = startContent->GetPrimaryFrame(); |
3426 | tabIndex = (frame && !startContent->IsHTMLElement(nsGkAtoms::area)) |
3427 | ? frame->IsFocusable().mTabIndex |
3428 | : startContent->IsFocusableWithoutStyle().mTabIndex; |
3429 | |
3430 | // if the current element isn't tabbable, ignore the tabindex and just |
3431 | // look for the next element. The root content won't have a tabindex |
3432 | // so just treat this as the beginning of the tab order. |
3433 | if (tabIndex < 0) { |
3434 | tabIndex = 1; |
3435 | if (startContent != rootElement) { |
3436 | ignoreTabIndex = true; |
3437 | } |
3438 | } |
3439 | |
3440 | // check if the focus is currently inside a popup. Elements such as the |
3441 | // autocomplete widget use the noautofocus attribute to allow the focus to |
3442 | // remain outside the popup when it is opened. |
3443 | if (frame) { |
3444 | popupFrame = nsLayoutUtils::GetClosestFrameOfType( |
3445 | frame, LayoutFrameType::MenuPopup); |
3446 | } |
3447 | |
3448 | if (popupFrame && !forDocumentNavigation) { |
3449 | // Don't navigate outside of a popup, so pretend that the |
3450 | // root content is the popup itself |
3451 | rootElement = popupFrame->GetContent()->AsElement(); |
3452 | NS_ASSERTION(rootElement, "Popup frame doesn't have a content node")do { if (!(rootElement)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Popup frame doesn't have a content node" , "rootElement", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3452); MOZ_PretendNoReturn(); } } while (0); |
3453 | } else if (!forward) { |
3454 | // If focus moves backward and when current focused node is root |
3455 | // content or <body> element which is editable by contenteditable |
3456 | // attribute, focus should move to its parent document. |
3457 | if (startContent == rootElement) { |
3458 | doNavigation = false; |
3459 | } else { |
3460 | Document* doc = startContent->GetComposedDoc(); |
3461 | if (startContent == |
3462 | nsLayoutUtils::GetEditableRootContentByContentEditable(doc)) { |
3463 | doNavigation = false; |
3464 | } |
3465 | } |
3466 | } |
3467 | } else { |
3468 | if (aType != MOVEFOCUS_CARET) { |
3469 | // if there is no focus, yet a panel is open, focus the first item in |
3470 | // the panel |
3471 | nsXULPopupManager* pm = nsXULPopupManager::GetInstance(); |
3472 | if (pm) { |
3473 | popupFrame = pm->GetTopPopup(PopupType::Panel); |
3474 | } |
3475 | } |
3476 | if (popupFrame) { |
3477 | // When there is a popup open, and no starting content, start the search |
3478 | // at the topmost popup. |
3479 | startContent = popupFrame->GetContent(); |
3480 | NS_ASSERTION(startContent, "Popup frame doesn't have a content node")do { if (!(startContent)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Popup frame doesn't have a content node", "startContent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3480); MOZ_PretendNoReturn(); } } while (0); |
3481 | // Unless we are searching for documents, set the root content to the |
3482 | // popup as well, so that we don't tab-navigate outside the popup. |
3483 | // When navigating by documents, we start at the popup but can navigate |
3484 | // outside of it to look for other panels and documents. |
3485 | if (!forDocumentNavigation) { |
3486 | rootElement = startContent->AsElement(); |
3487 | } |
3488 | |
3489 | doc = startContent ? startContent->GetComposedDoc() : nullptr; |
3490 | } else { |
3491 | // Otherwise, for content shells, start from the location of the caret. |
3492 | nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell(); |
3493 | if (docShell && docShell->ItemType() != nsIDocShellTreeItem::typeChrome) { |
3494 | nsCOMPtr<nsIContent> endSelectionContent; |
3495 | GetSelectionLocation(doc, presShell, getter_AddRefs(startContent), |
3496 | getter_AddRefs(endSelectionContent)); |
3497 | // If the selection is on the rootElement, then there is no selection |
3498 | if (startContent == rootElement) { |
3499 | startContent = nullptr; |
3500 | } |
3501 | |
3502 | if (aType == MOVEFOCUS_CARET) { |
3503 | // GetFocusInSelection finds a focusable link near the caret. |
3504 | // If there is no start content though, don't do this to avoid |
3505 | // focusing something unexpected. |
3506 | if (startContent) { |
3507 | GetFocusInSelection(aWindow, startContent, endSelectionContent, |
3508 | aNextContent); |
3509 | } |
3510 | return NS_OK; |
3511 | } |
3512 | |
3513 | if (startContent) { |
3514 | // when starting from a selection, we always want to find the next or |
3515 | // previous element in the document. So the tabindex on elements |
3516 | // should be ignored. |
3517 | ignoreTabIndex = true; |
3518 | // If selection starts from a focusable and tabbable element, we want |
3519 | // to make it focused rather than next/previous one. |
3520 | if (startContent->IsElement() && startContent->GetPrimaryFrame() && |
3521 | startContent->GetPrimaryFrame()->IsFocusable().IsTabbable()) { |
3522 | startContent = |
3523 | forward ? (startContent->GetPreviousSibling() |
3524 | ? startContent->GetPreviousSibling() |
3525 | // We don't need to get previous leaf node |
3526 | // because it may be too far from |
3527 | // startContent. We just want the previous |
3528 | // node immediately before startContent. |
3529 | : startContent->GetParent()) |
3530 | // We want the next node immdiately after startContent. |
3531 | // Therefore, we don't want its first child. |
3532 | : startContent->GetNextNonChildNode(); |
3533 | // If we reached the root element, we should treat it as there is no |
3534 | // selection as same as above. |
3535 | if (startContent == rootElement) { |
3536 | startContent = nullptr; |
3537 | } |
3538 | } |
3539 | } |
3540 | } |
3541 | |
3542 | if (!startContent) { |
3543 | // otherwise, just use the root content as the starting point |
3544 | startContent = rootElement; |
3545 | NS_ENSURE_TRUE(startContent, NS_OK)do { if ((__builtin_expect(!!(!(startContent)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "startContent" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3545); return NS_OK; } } while (false); |
3546 | } |
3547 | } |
3548 | } |
3549 | |
3550 | // Check if the starting content is the same as the content assigned to the |
3551 | // retargetdocumentfocus attribute. Is so, we don't want to start searching |
3552 | // from there but instead from the beginning of the document. Otherwise, the |
3553 | // content that appears before the retargetdocumentfocus element will never |
3554 | // get checked as it will be skipped when the focus is retargetted to it. |
3555 | if (forDocumentNavigation && nsContentUtils::IsChromeDoc(doc)) { |
3556 | nsAutoString retarget; |
3557 | |
3558 | if (rootElement->GetAttr(nsGkAtoms::retargetdocumentfocus, retarget)) { |
3559 | nsIContent* retargetElement = doc->GetElementById(retarget); |
3560 | // The common case here is the urlbar where focus is on the anonymous |
3561 | // input inside the textbox, but the retargetdocumentfocus attribute |
3562 | // refers to the textbox. The Contains check will return false and the |
3563 | // IsInclusiveDescendantOf check will return true in this case. |
3564 | if (retargetElement && |
3565 | (retargetElement == startContent || |
3566 | (!retargetElement->Contains(startContent) && |
3567 | startContent->IsInclusiveDescendantOf(retargetElement)))) { |
3568 | startContent = rootElement; |
3569 | } |
3570 | } |
3571 | } |
3572 | |
3573 | NS_ASSERTION(startContent, "starting content not set")do { if (!(startContent)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "starting content not set", "startContent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3573); MOZ_PretendNoReturn(); } } while (0); |
3574 | |
3575 | // keep a reference to the starting content. If we find that again, it means |
3576 | // we've iterated around completely and we don't want to adjust the focus. |
3577 | // The skipOriginalContentCheck will be set to true only for the first time |
3578 | // GetNextTabbableContent is called. This ensures that we don't break out |
3579 | // when nothing is focused to start with. Specifically, |
3580 | // GetNextTabbableContent first checks the root content -- which happens to |
3581 | // be the same as the start content -- when nothing is focused and tabbing |
3582 | // forward. Without skipOriginalContentCheck set to true, we'd end up |
3583 | // returning right away and focusing nothing. Luckily, GetNextTabbableContent |
3584 | // will never wrap around on its own, and can only return the original |
3585 | // content when it is called a second time or later. |
3586 | bool skipOriginalContentCheck = true; |
3587 | const nsCOMPtr<nsIContent> originalStartContent = startContent; |
3588 | |
3589 | LOGCONTENTNAVIGATION("Focus Navigation Start Content %s", startContent.get())if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusNavigationLog , LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (startContent.get()) { startContent.get()->NodeInfo()-> NameAtom()->ToUTF8String(tag); } do { const ::mozilla::LogModule * moz_real_module = gFocusNavigationLog; if ((__builtin_expect (!!(mozilla::detail::log_test(moz_real_module, LogLevel::Debug )), 0))) { mozilla::detail::log_print(moz_real_module, LogLevel ::Debug, "Focus Navigation Start Content %s", tag.get()); } } while (0); }; |
3590 | LOGFOCUSNAVIGATION((" Forward: %d Tabindex: %d Ignore: %d DocNav: %d",do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Forward: %d Tabindex: %d Ignore: %d DocNav: %d" , forward, tabIndex, ignoreTabIndex, forDocumentNavigation); } } while (0) |
3591 | forward, tabIndex, ignoreTabIndex,do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Forward: %d Tabindex: %d Ignore: %d DocNav: %d" , forward, tabIndex, ignoreTabIndex, forDocumentNavigation); } } while (0) |
3592 | forDocumentNavigation))do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " Forward: %d Tabindex: %d Ignore: %d DocNav: %d" , forward, tabIndex, ignoreTabIndex, forDocumentNavigation); } } while (0); |
3593 | |
3594 | while (doc) { |
3595 | if (doNavigation) { |
3596 | nsCOMPtr<nsIContent> nextFocus; |
3597 | // TODO: MOZ_KnownLive is reruired due to bug 1770680 |
3598 | nsresult rv = GetNextTabbableContent( |
3599 | presShell, rootElement, |
3600 | MOZ_KnownLive(skipOriginalContentCheck ? nullptr(skipOriginalContentCheck ? nullptr : originalStartContent.get ()) |
3601 | : originalStartContent.get())(skipOriginalContentCheck ? nullptr : originalStartContent.get ()), |
3602 | startContent, forward, tabIndex, ignoreTabIndex, |
3603 | forDocumentNavigation, aNavigateByKey, false, false, |
3604 | getter_AddRefs(nextFocus)); |
3605 | 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/base/nsFocusManager.cpp" , 3605); return rv; } } while (false); |
3606 | if (rv == NS_SUCCESS_DOM_NO_OPERATION) { |
3607 | // Navigation was redirected to a child process, so just return. |
3608 | return NS_OK; |
3609 | } |
3610 | |
3611 | // found a content node to focus. |
3612 | if (nextFocus) { |
3613 | LOGCONTENTNAVIGATION("Next Content: %s", nextFocus.get())if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusNavigationLog , LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (nextFocus.get()) { nextFocus.get()->NodeInfo()->NameAtom ()->ToUTF8String(tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog; if ((__builtin_expect(!!(mozilla::detail ::log_test(moz_real_module, LogLevel::Debug)), 0))) { mozilla ::detail::log_print(moz_real_module, LogLevel::Debug, "Next Content: %s" , tag.get()); } } while (0); }; |
3614 | |
3615 | // as long as the found node was not the same as the starting node, |
3616 | // set it as the return value. For document navigation, we can return |
3617 | // the same element in case there is only one content node that could |
3618 | // be returned, for example, in a child process document. |
3619 | if (nextFocus != originalStartContent || forDocumentNavigation) { |
3620 | nextFocus.forget(aNextContent); |
3621 | } |
3622 | return NS_OK; |
3623 | } |
3624 | |
3625 | if (popupFrame && !forDocumentNavigation) { |
3626 | // in a popup, so start again from the beginning of the popup. However, |
3627 | // if we already started at the beginning, then there isn't anything to |
3628 | // focus, so just return |
3629 | if (startContent != rootElement) { |
3630 | startContent = rootElement; |
3631 | tabIndex = forward ? 1 : 0; |
3632 | continue; |
3633 | } |
3634 | return NS_OK; |
3635 | } |
3636 | } |
3637 | |
3638 | doNavigation = true; |
3639 | skipOriginalContentCheck = forDocumentNavigation; |
3640 | ignoreTabIndex = false; |
3641 | |
3642 | if (aNoParentTraversal) { |
3643 | if (startContent == rootElement) { |
3644 | return NS_OK; |
3645 | } |
3646 | |
3647 | startContent = rootElement; |
3648 | tabIndex = forward ? 1 : 0; |
3649 | continue; |
3650 | } |
3651 | |
3652 | // Reached the beginning or end of the document. Next, navigate up to the |
3653 | // parent document and try again. |
3654 | nsCOMPtr<nsPIDOMWindowOuter> piWindow = doc->GetWindow(); |
3655 | NS_ENSURE_TRUE(piWindow, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(piWindow)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "piWindow" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3655); return NS_ERROR_FAILURE; } } while (false); |
3656 | |
3657 | nsCOMPtr<nsIDocShell> docShell = piWindow->GetDocShell(); |
3658 | NS_ENSURE_TRUE(docShell, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(docShell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "docShell" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3658); return NS_ERROR_FAILURE; } } while (false); |
3659 | |
3660 | // Get the frame element this window is inside and, from that, get the |
3661 | // parent document and presshell. If there is no enclosing frame element, |
3662 | // then this is a top-level, embedded or remote window. |
3663 | startContent = piWindow->GetFrameElementInternal(); |
3664 | if (startContent) { |
3665 | doc = startContent->GetComposedDoc(); |
3666 | NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(doc)), 0))) { NS_DebugBreak(NS_DEBUG_WARNING , "NS_ENSURE_TRUE(" "doc" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3666); return NS_ERROR_FAILURE; } } while (false); |
3667 | |
3668 | rootElement = doc->GetRootElement(); |
3669 | presShell = doc->GetPresShell(); |
3670 | |
3671 | // We can focus the root element now that we have moved to another |
3672 | // document. |
3673 | mayFocusRoot = true; |
3674 | |
3675 | nsIFrame* frame = startContent->GetPrimaryFrame(); |
3676 | if (!frame) { |
3677 | return NS_OK; |
3678 | } |
3679 | |
3680 | tabIndex = frame->IsFocusable().mTabIndex; |
3681 | if (tabIndex < 0) { |
3682 | tabIndex = 1; |
3683 | ignoreTabIndex = true; |
3684 | } |
3685 | |
3686 | // if the frame is inside a popup, make sure to scan only within the |
3687 | // popup. This handles the situation of tabbing amongst elements |
3688 | // inside an iframe which is itself inside a popup. Otherwise, |
3689 | // navigation would move outside the popup when tabbing outside the |
3690 | // iframe. |
3691 | if (!forDocumentNavigation) { |
3692 | popupFrame = nsLayoutUtils::GetClosestFrameOfType( |
3693 | frame, LayoutFrameType::MenuPopup); |
3694 | if (popupFrame) { |
3695 | rootElement = popupFrame->GetContent()->AsElement(); |
3696 | NS_ASSERTION(rootElement, "Popup frame doesn't have a content node")do { if (!(rootElement)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Popup frame doesn't have a content node" , "rootElement", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3696); MOZ_PretendNoReturn(); } } while (0); |
3697 | } |
3698 | } |
3699 | } else { |
3700 | if (aNavigateByKey) { |
3701 | // There is no parent, so move the focus to the parent process. |
3702 | if (auto* child = BrowserChild::GetFrom(docShell)) { |
3703 | child->SendMoveFocus(forward, forDocumentNavigation); |
3704 | // Blur the current element. |
3705 | RefPtr<BrowsingContext> focusedBC = GetFocusedBrowsingContext(); |
3706 | if (focusedBC && focusedBC->IsInProcess()) { |
3707 | Blur(focusedBC, nullptr, true, true, false, |
3708 | GenerateFocusActionId()); |
3709 | } else { |
3710 | nsCOMPtr<nsPIDOMWindowOuter> window = docShell->GetWindow(); |
3711 | window->SetFocusedElement(nullptr); |
3712 | } |
3713 | return NS_OK; |
3714 | } |
3715 | } |
3716 | |
3717 | // If we have reached the end of the top-level document, focus the |
3718 | // first element in the top-level document. This should always happen |
3719 | // when navigating by document forwards but when navigating backwards, |
3720 | // only do this if we started in another document or within a popup frame. |
3721 | // If the focus started in this window outside a popup however, we should |
3722 | // continue by looping around to the end again. |
3723 | if (forDocumentNavigation && (forward || mayFocusRoot || popupFrame)) { |
3724 | // HTML content documents can have their root element focused by |
3725 | // pressing F6(a focus ring appears around the entire content area |
3726 | // frame). This root appears in the tab order before all of the elements |
3727 | // in the document. Chrome documents however cannot be focused directly, |
3728 | // so instead we focus the first focusable element within the window. |
3729 | // For example, the urlbar. |
3730 | RefPtr<Element> rootElementForFocus = |
3731 | GetRootForFocus(piWindow, doc, true, true); |
3732 | return FocusFirst(rootElementForFocus, aNextContent, |
3733 | true /* aReachedToEndForDocumentNavigation */); |
3734 | } |
3735 | |
3736 | // Once we have hit the top-level and have iterated to the end again, we |
3737 | // just want to break out next time we hit this spot to prevent infinite |
3738 | // iteration. |
3739 | mayFocusRoot = true; |
3740 | |
3741 | // reset the tab index and start again from the beginning or end |
3742 | startContent = rootElement; |
3743 | tabIndex = forward ? 1 : 0; |
3744 | } |
3745 | |
3746 | // wrapped all the way around and didn't find anything to move the focus |
3747 | // to, so just break out |
3748 | if (startContent == originalStartContent) { |
3749 | break; |
3750 | } |
3751 | } |
3752 | |
3753 | return NS_OK; |
3754 | } |
3755 | |
3756 | uint32_t nsFocusManager::ProgrammaticFocusFlags(const FocusOptions& aOptions) { |
3757 | uint32_t flags = FLAG_BYJS; |
3758 | if (aOptions.mPreventScroll) { |
3759 | flags |= FLAG_NOSCROLL; |
3760 | } |
3761 | if (aOptions.mFocusVisible.WasPassed()) { |
3762 | flags |= aOptions.mFocusVisible.Value() ? FLAG_SHOWRING : FLAG_NOSHOWRING; |
3763 | } |
3764 | if (UserActivation::IsHandlingKeyboardInput()) { |
3765 | flags |= FLAG_BYKEY; |
3766 | } |
3767 | // TODO: We could do a similar thing if we're handling mouse input, but that |
3768 | // changes focusability of some elements so may be more risky. |
3769 | return flags; |
3770 | } |
3771 | |
3772 | static bool IsHostOrSlot(const nsIContent* aContent) { |
3773 | return aContent && (aContent->GetShadowRoot() || |
3774 | aContent->IsHTMLElement(nsGkAtoms::slot)); |
3775 | } |
3776 | |
3777 | // Helper class to iterate contents in scope by traversing flattened tree |
3778 | // in tree order |
3779 | class MOZ_STACK_CLASS ScopedContentTraversal { |
3780 | public: |
3781 | ScopedContentTraversal(nsIContent* aStartContent, nsIContent* aOwner) |
3782 | : mCurrent(aStartContent), mOwner(aOwner) { |
3783 | MOZ_ASSERT(aStartContent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStartContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStartContent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStartContent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3783); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartContent" ")"); do { *((volatile int*)__null) = 3783; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
3784 | } |
3785 | |
3786 | void Next(); |
3787 | void Prev(); |
3788 | |
3789 | void Reset() { SetCurrent(mOwner); } |
3790 | |
3791 | nsIContent* GetCurrent() const { return mCurrent; } |
3792 | |
3793 | private: |
3794 | void SetCurrent(nsIContent* aContent) { mCurrent = aContent; } |
3795 | |
3796 | nsIContent* mCurrent; |
3797 | nsIContent* mOwner; |
3798 | }; |
3799 | |
3800 | void ScopedContentTraversal::Next() { |
3801 | MOZ_ASSERT(mCurrent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mCurrent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mCurrent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mCurrent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3801); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mCurrent" ")" ); do { *((volatile int*)__null) = 3801; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
3802 | |
3803 | // Get mCurrent's first child if it's in the same scope. |
3804 | if (!IsHostOrSlot(mCurrent) || mCurrent == mOwner) { |
3805 | StyleChildrenIterator iter(mCurrent); |
3806 | nsIContent* child = iter.GetNextChild(); |
3807 | if (child) { |
3808 | SetCurrent(child); |
3809 | return; |
3810 | } |
3811 | } |
3812 | |
3813 | // If mOwner has no children, END traversal |
3814 | if (mCurrent == mOwner) { |
3815 | SetCurrent(nullptr); |
3816 | return; |
3817 | } |
3818 | |
3819 | nsIContent* current = mCurrent; |
3820 | while (1) { |
3821 | // Create parent's iterator and move to current |
3822 | nsIContent* parent = current->GetFlattenedTreeParent(); |
3823 | StyleChildrenIterator parentIter(parent); |
3824 | parentIter.Seek(current); |
3825 | |
3826 | // Get next sibling of current |
3827 | if (nsIContent* next = parentIter.GetNextChild()) { |
3828 | SetCurrent(next); |
3829 | return; |
3830 | } |
3831 | |
3832 | // If no next sibling and parent is mOwner, END traversal |
3833 | if (parent == mOwner) { |
3834 | SetCurrent(nullptr); |
3835 | return; |
3836 | } |
3837 | |
3838 | current = parent; |
3839 | } |
3840 | } |
3841 | |
3842 | void ScopedContentTraversal::Prev() { |
3843 | MOZ_ASSERT(mCurrent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mCurrent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mCurrent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mCurrent", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3843); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mCurrent" ")" ); do { *((volatile int*)__null) = 3843; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
3844 | |
3845 | nsIContent* parent; |
3846 | nsIContent* last; |
3847 | if (mCurrent == mOwner) { |
3848 | // Get last child of mOwner |
3849 | StyleChildrenIterator ownerIter(mOwner, false /* aStartAtBeginning */); |
3850 | last = ownerIter.GetPreviousChild(); |
3851 | |
3852 | parent = last; |
3853 | } else { |
3854 | // Create parent's iterator and move to mCurrent |
3855 | parent = mCurrent->GetFlattenedTreeParent(); |
3856 | StyleChildrenIterator parentIter(parent); |
3857 | parentIter.Seek(mCurrent); |
3858 | |
3859 | // Get previous sibling |
3860 | last = parentIter.GetPreviousChild(); |
3861 | } |
3862 | |
3863 | while (last) { |
3864 | parent = last; |
3865 | if (IsHostOrSlot(parent)) { |
3866 | // Skip contents in other scopes |
3867 | break; |
3868 | } |
3869 | |
3870 | // Find last child |
3871 | StyleChildrenIterator iter(parent, false /* aStartAtBeginning */); |
3872 | last = iter.GetPreviousChild(); |
3873 | } |
3874 | |
3875 | // If parent is mOwner and no previous sibling remains, END traversal |
3876 | SetCurrent(parent == mOwner ? nullptr : parent); |
3877 | } |
3878 | |
3879 | static bool IsOpenPopoverWithInvoker(nsIContent* aContent) { |
3880 | if (auto* popover = Element::FromNode(aContent)) { |
3881 | return popover && popover->IsPopoverOpen() && |
3882 | popover->GetPopoverData()->GetInvoker(); |
3883 | } |
3884 | return false; |
3885 | } |
3886 | |
3887 | static nsIContent* InvokerForPopoverShowingState(nsIContent* aContent) { |
3888 | Element* invoker = Element::FromNode(aContent); |
3889 | if (!invoker) { |
3890 | return nullptr; |
3891 | } |
3892 | |
3893 | nsGenericHTMLElement* popover = invoker->GetEffectivePopoverTargetElement(); |
3894 | if (popover && popover->IsPopoverOpen() && |
3895 | popover->GetPopoverData()->GetInvoker() == invoker) { |
3896 | return aContent; |
3897 | } |
3898 | |
3899 | return nullptr; |
3900 | } |
3901 | |
3902 | /** |
3903 | * Returns scope owner of aContent. |
3904 | * A scope owner is either a shadow host, or slot. |
3905 | */ |
3906 | static nsIContent* FindScopeOwner(nsIContent* aContent) { |
3907 | nsIContent* currentContent = aContent; |
3908 | while (currentContent) { |
3909 | nsIContent* parent = currentContent->GetFlattenedTreeParent(); |
3910 | |
3911 | // Shadow host / Slot |
3912 | if (IsHostOrSlot(parent)) { |
3913 | return parent; |
3914 | } |
3915 | |
3916 | currentContent = parent; |
3917 | } |
3918 | |
3919 | return nullptr; |
3920 | } |
3921 | |
3922 | /** |
3923 | * Host and Slot elements need to be handled as if they had tabindex 0 even |
3924 | * when they don't have the attribute. This is a helper method to get the |
3925 | * right value for focus navigation. If aIsFocusable is passed, it is set to |
3926 | * true if the element itself is focusable. |
3927 | */ |
3928 | static int32_t HostOrSlotTabIndexValue(const nsIContent* aContent, |
3929 | bool* aIsFocusable = nullptr) { |
3930 | MOZ_ASSERT(IsHostOrSlot(aContent))do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsHostOrSlot(aContent))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsHostOrSlot(aContent)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("IsHostOrSlot(aContent)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3930); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsHostOrSlot(aContent)" ")"); do { *((volatile int*)__null) = 3930; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
3931 | |
3932 | if (aIsFocusable) { |
3933 | nsIFrame* frame = aContent->GetPrimaryFrame(); |
3934 | *aIsFocusable = frame && frame->IsFocusable().mTabIndex >= 0; |
3935 | } |
3936 | |
3937 | const nsAttrValue* attrVal = |
3938 | aContent->AsElement()->GetParsedAttr(nsGkAtoms::tabindex); |
3939 | if (!attrVal) { |
3940 | return 0; |
3941 | } |
3942 | |
3943 | if (attrVal->Type() == nsAttrValue::eInteger) { |
3944 | return attrVal->GetIntegerValue(); |
3945 | } |
3946 | |
3947 | return -1; |
3948 | } |
3949 | |
3950 | nsIContent* nsFocusManager::GetNextTabbableContentInScope( |
3951 | nsIContent* aOwner, nsIContent* aStartContent, |
3952 | nsIContent* aOriginalStartContent, bool aForward, int32_t aCurrentTabIndex, |
3953 | bool aIgnoreTabIndex, bool aForDocumentNavigation, bool aNavigateByKey, |
3954 | bool aSkipOwner, bool aReachedToEndForDocumentNavigation) { |
3955 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner)" " (" "Scope owner should be host, slot or an open popover with invoker set." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3957); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner)" ") (" "Scope owner should be host, slot or an open popover with invoker set." ")"); do { *((volatile int*)__null) = 3957; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
3956 | IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner),do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner)" " (" "Scope owner should be host, slot or an open popover with invoker set." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3957); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner)" ") (" "Scope owner should be host, slot or an open popover with invoker set." ")"); do { *((volatile int*)__null) = 3957; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
3957 | "Scope owner should be host, slot or an open popover with invoker set.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner)" " (" "Scope owner should be host, slot or an open popover with invoker set." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3957); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner)" ") (" "Scope owner should be host, slot or an open popover with invoker set." ")"); do { *((volatile int*)__null) = 3957; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
3958 | |
3959 | // XXX: Why don't we ignore tabindex when the current tabindex < 0? |
3960 | MOZ_ASSERT_IF(aCurrentTabIndex < 0, aIgnoreTabIndex)do { if (aCurrentTabIndex < 0) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(aIgnoreTabIndex) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aIgnoreTabIndex))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aIgnoreTabIndex", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 3960); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIgnoreTabIndex" ")"); do { *((volatile int*)__null) = 3960; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
3961 | |
3962 | if (!aSkipOwner && (aForward && aOwner == aStartContent)) { |
3963 | if (nsIFrame* frame = aOwner->GetPrimaryFrame()) { |
3964 | auto focusable = frame->IsFocusable(); |
3965 | if (focusable && focusable.mTabIndex >= 0) { |
3966 | return aOwner; |
3967 | } |
3968 | } |
3969 | } |
3970 | |
3971 | // |
3972 | // Iterate contents in scope |
3973 | // |
3974 | ScopedContentTraversal contentTraversal(aStartContent, aOwner); |
3975 | nsCOMPtr<nsIContent> iterContent; |
3976 | nsIContent* firstNonChromeOnly = |
3977 | aStartContent->IsInNativeAnonymousSubtree() |
3978 | ? aStartContent->FindFirstNonChromeOnlyAccessContent() |
3979 | : nullptr; |
3980 | while (1) { |
3981 | // Iterate tab index to find corresponding contents in scope |
3982 | |
3983 | while (1) { |
3984 | // Iterate remaining contents in scope to find next content to focus |
3985 | |
3986 | // Get next content |
3987 | aForward ? contentTraversal.Next() : contentTraversal.Prev(); |
3988 | iterContent = contentTraversal.GetCurrent(); |
3989 | |
3990 | if (firstNonChromeOnly && firstNonChromeOnly == iterContent) { |
3991 | // We just broke out from the native anonymous content, so move |
3992 | // to the previous/next node of the native anonymous owner. |
3993 | if (aForward) { |
3994 | contentTraversal.Next(); |
3995 | } else { |
3996 | contentTraversal.Prev(); |
3997 | } |
3998 | iterContent = contentTraversal.GetCurrent(); |
3999 | } |
4000 | if (!iterContent) { |
4001 | // Reach the end |
4002 | break; |
4003 | } |
4004 | |
4005 | int32_t tabIndex = 0; |
4006 | if (iterContent->IsInNativeAnonymousSubtree() && |
4007 | iterContent->GetPrimaryFrame()) { |
4008 | tabIndex = iterContent->GetPrimaryFrame()->IsFocusable().mTabIndex; |
4009 | } else if (IsHostOrSlot(iterContent)) { |
4010 | tabIndex = HostOrSlotTabIndexValue(iterContent); |
4011 | } else { |
4012 | nsIFrame* frame = iterContent->GetPrimaryFrame(); |
4013 | if (!frame) { |
4014 | continue; |
4015 | } |
4016 | tabIndex = frame->IsFocusable().mTabIndex; |
4017 | } |
4018 | if (tabIndex < 0 || !(aIgnoreTabIndex || tabIndex == aCurrentTabIndex)) { |
4019 | continue; |
4020 | } |
4021 | |
4022 | if (!IsHostOrSlot(iterContent)) { |
4023 | nsCOMPtr<nsIContent> elementInFrame; |
4024 | bool checkSubDocument = true; |
4025 | if (aForDocumentNavigation && |
4026 | TryDocumentNavigation(iterContent, &checkSubDocument, |
4027 | getter_AddRefs(elementInFrame))) { |
4028 | return elementInFrame; |
4029 | } |
4030 | if (!checkSubDocument) { |
4031 | if (aReachedToEndForDocumentNavigation && |
4032 | StaticPrefs::dom_disable_tab_focus_to_root_element() && |
4033 | nsContentUtils::IsChromeDoc(iterContent->GetComposedDoc())) { |
4034 | // aReachedToEndForDocumentNavigation is true means |
4035 | // 1. This is a document navigation (i.e, VK_F6, Control + Tab) |
4036 | // 2. This is the top-level document (Note that we may start from |
4037 | // a subdocument) |
4038 | // 3. We've searched through the this top-level document already |
4039 | if (!GetRootForChildDocument(iterContent)) { |
4040 | // We'd like to focus the first focusable element of this |
4041 | // top-level chrome document. |
4042 | return iterContent; |
4043 | } |
4044 | } |
4045 | continue; |
4046 | } |
4047 | |
4048 | if (TryToMoveFocusToSubDocument(iterContent, aOriginalStartContent, |
4049 | aForward, aForDocumentNavigation, |
4050 | aNavigateByKey, |
4051 | aReachedToEndForDocumentNavigation, |
4052 | getter_AddRefs(elementInFrame))) { |
4053 | return elementInFrame; |
4054 | } |
4055 | |
4056 | // Found content to focus |
4057 | return iterContent; |
4058 | } |
4059 | |
4060 | // Search in scope owned by iterContent |
4061 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
4062 | iterContent, iterContent, aOriginalStartContent, aForward, |
4063 | aForward ? 1 : 0, aIgnoreTabIndex, aForDocumentNavigation, |
4064 | aNavigateByKey, false /* aSkipOwner */, |
4065 | aReachedToEndForDocumentNavigation); |
4066 | if (contentToFocus) { |
4067 | return contentToFocus; |
4068 | } |
4069 | }; |
4070 | |
4071 | // If already at lowest priority tab (0), end search completely. |
4072 | // A bit counterintuitive but true, tabindex order goes 1, 2, ... 32767, 0 |
4073 | if (aCurrentTabIndex == (aForward ? 0 : 1)) { |
4074 | break; |
4075 | } |
4076 | |
4077 | // We've been just trying to find some focusable element, and haven't, so |
4078 | // bail out. |
4079 | if (aIgnoreTabIndex) { |
4080 | break; |
4081 | } |
4082 | |
4083 | // Continue looking for next highest priority tabindex |
4084 | aCurrentTabIndex = GetNextTabIndex(aOwner, aCurrentTabIndex, aForward); |
4085 | contentTraversal.Reset(); |
4086 | } |
4087 | |
4088 | // Return scope owner at last for backward navigation if its tabindex |
4089 | // is non-negative |
4090 | if (!aSkipOwner && !aForward) { |
4091 | if (nsIFrame* frame = aOwner->GetPrimaryFrame()) { |
4092 | auto focusable = frame->IsFocusable(); |
4093 | if (focusable && focusable.mTabIndex >= 0) { |
4094 | return aOwner; |
4095 | } |
4096 | } |
4097 | } |
4098 | |
4099 | return nullptr; |
4100 | } |
4101 | |
4102 | nsIContent* nsFocusManager::GetNextTabbableContentInAncestorScopes( |
4103 | nsIContent* aStartOwner, nsCOMPtr<nsIContent>& aStartContent /* inout */, |
4104 | nsIContent* aOriginalStartContent, bool aForward, int32_t* aCurrentTabIndex, |
4105 | bool* aIgnoreTabIndex, bool aForDocumentNavigation, bool aNavigateByKey, |
4106 | bool aReachedToEndForDocumentNavigation) { |
4107 | MOZ_ASSERT(aStartOwner == FindScopeOwner(aStartContent),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStartOwner == FindScopeOwner(aStartContent))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aStartOwner == FindScopeOwner(aStartContent)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStartOwner == FindScopeOwner(aStartContent)" " (" "aStartOWner should be the scope owner of aStartContent" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4108); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartOwner == FindScopeOwner(aStartContent)" ") (" "aStartOWner should be the scope owner of aStartContent" ")"); do { *((volatile int*)__null) = 4108; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
4108 | "aStartOWner should be the scope owner of aStartContent")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStartOwner == FindScopeOwner(aStartContent))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aStartOwner == FindScopeOwner(aStartContent)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStartOwner == FindScopeOwner(aStartContent)" " (" "aStartOWner should be the scope owner of aStartContent" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4108); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartOwner == FindScopeOwner(aStartContent)" ") (" "aStartOWner should be the scope owner of aStartContent" ")"); do { *((volatile int*)__null) = 4108; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
4109 | MOZ_ASSERT(IsHostOrSlot(aStartOwner), "scope owner should be host or slot")do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsHostOrSlot(aStartOwner))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsHostOrSlot(aStartOwner)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("IsHostOrSlot(aStartOwner)" " (" "scope owner should be host or slot" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4109); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsHostOrSlot(aStartOwner)" ") (" "scope owner should be host or slot" ")"); do { *((volatile int*)__null) = 4109; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
4110 | |
4111 | nsCOMPtr<nsIContent> owner = aStartOwner; |
4112 | nsCOMPtr<nsIContent> startContent = aStartContent; |
4113 | while (IsHostOrSlot(owner)) { |
4114 | int32_t tabIndex = 0; |
4115 | if (IsHostOrSlot(startContent)) { |
4116 | tabIndex = HostOrSlotTabIndexValue(startContent); |
4117 | } else if (nsIFrame* frame = startContent->GetPrimaryFrame()) { |
4118 | tabIndex = frame->IsFocusable().mTabIndex; |
4119 | } else { |
4120 | tabIndex = startContent->IsFocusableWithoutStyle().mTabIndex; |
4121 | } |
4122 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
4123 | owner, startContent, aOriginalStartContent, aForward, tabIndex, |
4124 | tabIndex < 0, aForDocumentNavigation, aNavigateByKey, |
4125 | false /* aSkipOwner */, aReachedToEndForDocumentNavigation); |
4126 | if (contentToFocus) { |
4127 | return contentToFocus; |
4128 | } |
4129 | |
4130 | startContent = owner; |
4131 | owner = FindScopeOwner(startContent); |
4132 | } |
4133 | |
4134 | // If not found in shadow DOM, search from the top level shadow host in light |
4135 | // DOM |
4136 | aStartContent = startContent; |
4137 | *aCurrentTabIndex = HostOrSlotTabIndexValue(startContent); |
4138 | |
4139 | if (*aCurrentTabIndex < 0) { |
4140 | *aIgnoreTabIndex = true; |
4141 | } |
4142 | |
4143 | return nullptr; |
4144 | } |
4145 | |
4146 | static nsIContent* GetTopLevelScopeOwner(nsIContent* aContent) { |
4147 | nsIContent* topLevelScopeOwner = nullptr; |
4148 | while (aContent) { |
4149 | if (HTMLSlotElement* slot = aContent->GetAssignedSlot()) { |
4150 | aContent = slot; |
4151 | topLevelScopeOwner = aContent; |
4152 | } else if (ShadowRoot* shadowRoot = aContent->GetContainingShadow()) { |
4153 | aContent = shadowRoot->Host(); |
4154 | topLevelScopeOwner = aContent; |
4155 | } else { |
4156 | aContent = aContent->GetParent(); |
4157 | if (aContent && (HTMLSlotElement::FromNode(aContent) || |
4158 | IsOpenPopoverWithInvoker(aContent))) { |
4159 | topLevelScopeOwner = aContent; |
4160 | } |
4161 | } |
4162 | } |
4163 | |
4164 | return topLevelScopeOwner; |
4165 | } |
4166 | |
4167 | nsresult nsFocusManager::GetNextTabbableContent( |
4168 | PresShell* aPresShell, nsIContent* aRootContent, |
4169 | nsIContent* aOriginalStartContent, nsIContent* aStartContent, bool aForward, |
4170 | int32_t aCurrentTabIndex, bool aIgnoreTabIndex, bool aForDocumentNavigation, |
4171 | bool aNavigateByKey, bool aSkipPopover, |
4172 | bool aReachedToEndForDocumentNavigation, nsIContent** aResultContent) { |
4173 | *aResultContent = nullptr; |
4174 | |
4175 | if (!aStartContent) { |
4176 | return NS_OK; |
4177 | } |
4178 | |
4179 | nsCOMPtr<nsIContent> startContent = aStartContent; |
4180 | nsCOMPtr<nsIContent> currentTopLevelScopeOwner = |
4181 | GetTopLevelScopeOwner(startContent); |
4182 | |
4183 | LOGCONTENTNAVIGATION("GetNextTabbable: %s", startContent)if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusNavigationLog , LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (startContent) { startContent->NodeInfo()->NameAtom()-> ToUTF8String(tag); } do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog; if ((__builtin_expect(!!(mozilla::detail ::log_test(moz_real_module, LogLevel::Debug)), 0))) { mozilla ::detail::log_print(moz_real_module, LogLevel::Debug, "GetNextTabbable: %s" , tag.get()); } } while (0); }; |
4184 | LOGFOCUSNAVIGATION((" tabindex: %d", aCurrentTabIndex))do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " tabindex: %d", aCurrentTabIndex); } } while (0); |
4185 | |
4186 | // If startContent is a shadow host or slot in forward navigation, |
4187 | // search in scope owned by startContent |
4188 | if (aForward && IsHostOrSlot(startContent)) { |
4189 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
4190 | startContent, startContent, aOriginalStartContent, aForward, 1, |
4191 | aIgnoreTabIndex, aForDocumentNavigation, aNavigateByKey, |
4192 | true /* aSkipOwner */, aReachedToEndForDocumentNavigation); |
4193 | if (contentToFocus) { |
4194 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
4195 | return NS_OK; |
4196 | } |
4197 | } |
4198 | |
4199 | // If startContent is a popover invoker, search the popover scope. |
4200 | if (!aSkipPopover) { |
4201 | if (InvokerForPopoverShowingState(startContent)) { |
4202 | if (aForward) { |
4203 | RefPtr<nsIContent> popover = |
4204 | startContent->GetEffectivePopoverTargetElement(); |
4205 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
4206 | popover, popover, aOriginalStartContent, aForward, 1, |
4207 | aIgnoreTabIndex, aForDocumentNavigation, aNavigateByKey, |
4208 | true /* aSkipOwner */, aReachedToEndForDocumentNavigation); |
4209 | if (contentToFocus) { |
4210 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
4211 | return NS_OK; |
4212 | } |
4213 | } |
4214 | } |
4215 | } |
4216 | |
4217 | // If startContent is in a scope owned by Shadow DOM search from scope |
4218 | // including startContent |
4219 | if (nsCOMPtr<nsIContent> owner = FindScopeOwner(startContent)) { |
4220 | nsIContent* contentToFocus = GetNextTabbableContentInAncestorScopes( |
4221 | owner, startContent /* inout */, aOriginalStartContent, aForward, |
4222 | &aCurrentTabIndex, &aIgnoreTabIndex, aForDocumentNavigation, |
4223 | aNavigateByKey, aReachedToEndForDocumentNavigation); |
4224 | if (contentToFocus) { |
4225 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
4226 | return NS_OK; |
4227 | } |
4228 | } |
4229 | |
4230 | // If we reach here, it means no next tabbable content in shadow DOM. |
4231 | // We need to continue searching in light DOM, starting at the top level |
4232 | // shadow host in light DOM (updated startContent) and its tabindex |
4233 | // (updated aCurrentTabIndex). |
4234 | MOZ_ASSERT(!FindScopeOwner(startContent),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!FindScopeOwner(startContent))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!FindScopeOwner(startContent )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!FindScopeOwner(startContent)" " (" "startContent should not be owned by Shadow DOM at this point" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4235); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!FindScopeOwner(startContent)" ") (" "startContent should not be owned by Shadow DOM at this point" ")"); do { *((volatile int*)__null) = 4235; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
4235 | "startContent should not be owned by Shadow DOM at this point")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!FindScopeOwner(startContent))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!FindScopeOwner(startContent )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!FindScopeOwner(startContent)" " (" "startContent should not be owned by Shadow DOM at this point" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4235); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!FindScopeOwner(startContent)" ") (" "startContent should not be owned by Shadow DOM at this point" ")"); do { *((volatile int*)__null) = 4235; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
4236 | |
4237 | nsPresContext* presContext = aPresShell->GetPresContext(); |
4238 | |
4239 | bool getNextFrame = true; |
4240 | nsCOMPtr<nsIContent> iterStartContent = startContent; |
4241 | nsIContent* topLevelScopeStartContent = startContent; |
4242 | // Iterate tab index to find corresponding contents |
4243 | while (1) { |
4244 | nsIFrame* frame = iterStartContent->GetPrimaryFrame(); |
4245 | // if there is no frame, look for another content node that has a frame |
4246 | while (!frame) { |
4247 | // if the root content doesn't have a frame, just return |
4248 | if (iterStartContent == aRootContent) { |
4249 | return NS_OK; |
4250 | } |
4251 | |
4252 | // look for the next or previous content node in tree order |
4253 | iterStartContent = aForward ? iterStartContent->GetNextNode() |
4254 | : iterStartContent->GetPrevNode(); |
4255 | if (!iterStartContent) { |
4256 | break; |
4257 | } |
4258 | |
4259 | frame = iterStartContent->GetPrimaryFrame(); |
4260 | // Host without frame, enter its scope. |
4261 | if (!frame && iterStartContent->GetShadowRoot()) { |
4262 | int32_t tabIndex = HostOrSlotTabIndexValue(iterStartContent); |
4263 | if (tabIndex >= 0 && |
4264 | (aIgnoreTabIndex || aCurrentTabIndex == tabIndex)) { |
4265 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
4266 | iterStartContent, iterStartContent, aOriginalStartContent, |
4267 | aForward, aForward ? 1 : 0, aIgnoreTabIndex, |
4268 | aForDocumentNavigation, aNavigateByKey, true /* aSkipOwner */, |
4269 | aReachedToEndForDocumentNavigation); |
4270 | if (contentToFocus) { |
4271 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
4272 | return NS_OK; |
4273 | } |
4274 | } |
4275 | } |
4276 | // we've already skipped over the initial focused content, so we |
4277 | // don't want to traverse frames. |
4278 | getNextFrame = false; |
4279 | } |
4280 | |
4281 | Maybe<nsFrameIterator> frameIterator; |
4282 | if (frame) { |
4283 | // For tab navigation, pass false for aSkipPopupChecks so that we don't |
4284 | // iterate into or out of a popup. For document naviation pass true to |
4285 | // ignore these boundaries. |
4286 | frameIterator.emplace(presContext, frame, nsFrameIterator::Type::PreOrder, |
4287 | false, // aVisual |
4288 | false, // aLockInScrollView |
4289 | true, // aFollowOOFs |
4290 | aForDocumentNavigation // aSkipPopupChecks |
4291 | ); |
4292 | MOZ_ASSERT(frameIterator)do { static_assert( mozilla::detail::AssertionConditionType< decltype(frameIterator)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(frameIterator))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("frameIterator", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4292); AnnotateMozCrashReason("MOZ_ASSERT" "(" "frameIterator" ")"); do { *((volatile int*)__null) = 4292; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
4293 | |
4294 | if (iterStartContent == aRootContent) { |
4295 | if (!aForward) { |
4296 | frameIterator->Last(); |
4297 | } else if (aRootContent->IsFocusableWithoutStyle()) { |
4298 | frameIterator->Next(); |
4299 | } |
4300 | frame = frameIterator->CurrentItem(); |
4301 | } else if (getNextFrame && |
4302 | (!iterStartContent || |
4303 | !iterStartContent->IsHTMLElement(nsGkAtoms::area))) { |
4304 | // Need to do special check in case we're in an imagemap which has |
4305 | // multiple content nodes per frame, so don't skip over the starting |
4306 | // frame. |
4307 | frame = frameIterator->Traverse(aForward); |
4308 | } |
4309 | } |
4310 | |
4311 | nsIContent* oldTopLevelScopeOwner = nullptr; |
4312 | // Walk frames to find something tabbable matching aCurrentTabIndex |
4313 | while (frame) { |
4314 | // Try to find the topmost scope owner, since we want to skip the node |
4315 | // that is not owned by document in frame traversal. |
4316 | const nsCOMPtr<nsIContent> currentContent = frame->GetContent(); |
4317 | if (currentTopLevelScopeOwner) { |
4318 | oldTopLevelScopeOwner = currentTopLevelScopeOwner; |
4319 | } |
4320 | currentTopLevelScopeOwner = GetTopLevelScopeOwner(currentContent); |
4321 | |
4322 | // We handle popover case separately. |
4323 | if (currentTopLevelScopeOwner && |
4324 | currentTopLevelScopeOwner == oldTopLevelScopeOwner && |
4325 | !IsOpenPopoverWithInvoker(currentTopLevelScopeOwner)) { |
4326 | // We're within non-document scope, continue. |
4327 | do { |
4328 | if (aForward) { |
4329 | frameIterator->Next(); |
4330 | } else { |
4331 | frameIterator->Prev(); |
4332 | } |
4333 | frame = frameIterator->CurrentItem(); |
4334 | // For the usage of GetPrevContinuation, see the comment |
4335 | // at the end of while (frame) loop. |
4336 | } while (frame && frame->GetPrevContinuation()); |
4337 | continue; |
4338 | } |
4339 | |
4340 | // Stepping out popover scope. |
4341 | // For forward, search for the next tabbable content after invoker. |
4342 | // For backward, we should get back to the invoker if the invoker is |
4343 | // focusable. Otherwise search for the next tabbable content after |
4344 | // invoker. |
4345 | if (oldTopLevelScopeOwner && |
4346 | IsOpenPopoverWithInvoker(oldTopLevelScopeOwner) && |
4347 | currentTopLevelScopeOwner != oldTopLevelScopeOwner) { |
4348 | if (auto* popover = Element::FromNode(oldTopLevelScopeOwner)) { |
4349 | RefPtr<nsIContent> invokerContent = |
4350 | popover->GetPopoverData()->GetInvoker()->AsContent(); |
4351 | RefPtr<nsIContent> rootElement = invokerContent; |
4352 | if (auto* doc = invokerContent->GetComposedDoc()) { |
4353 | rootElement = doc->GetRootElement(); |
4354 | } |
4355 | if (aForward) { |
4356 | nsIFrame* frame = invokerContent->GetPrimaryFrame(); |
4357 | int32_t tabIndex = frame->IsFocusable().mTabIndex; |
4358 | if (tabIndex >= 0 && |
4359 | (aIgnoreTabIndex || aCurrentTabIndex == tabIndex)) { |
4360 | nsresult rv = GetNextTabbableContent( |
4361 | aPresShell, rootElement, nullptr, invokerContent, true, |
4362 | tabIndex, false, false, aNavigateByKey, true, |
4363 | aReachedToEndForDocumentNavigation, aResultContent); |
4364 | if (NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1))) && *aResultContent) { |
4365 | return rv; |
4366 | } |
4367 | } |
4368 | } else if (invokerContent) { |
4369 | nsIFrame* frame = invokerContent->GetPrimaryFrame(); |
4370 | if (frame && frame->IsFocusable()) { |
4371 | invokerContent.forget(aResultContent); |
4372 | return NS_OK; |
4373 | } |
4374 | nsresult rv = GetNextTabbableContent( |
4375 | aPresShell, rootElement, aOriginalStartContent, invokerContent, |
4376 | false, 0, true, false, aNavigateByKey, true, |
4377 | aReachedToEndForDocumentNavigation, aResultContent); |
4378 | if (NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1))) && *aResultContent) { |
4379 | return rv; |
4380 | } |
4381 | } |
4382 | } |
4383 | } |
4384 | |
4385 | if (!aForward) { |
4386 | if (InvokerForPopoverShowingState(currentContent)) { |
4387 | RefPtr<nsIContent> popover = |
4388 | currentContent->GetEffectivePopoverTargetElement(); |
4389 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
4390 | popover, popover, aOriginalStartContent, aForward, 0, |
4391 | aIgnoreTabIndex, aForDocumentNavigation, aNavigateByKey, |
4392 | true /* aSkipOwner */, aReachedToEndForDocumentNavigation); |
4393 | |
4394 | if (contentToFocus) { |
4395 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
4396 | return NS_OK; |
4397 | } |
4398 | } |
4399 | } |
4400 | // For document navigation, check if this element is an open panel. Since |
4401 | // panels aren't focusable (tabIndex would be -1), we'll just assume that |
4402 | // for document navigation, the tabIndex is 0. |
4403 | if (aForDocumentNavigation && currentContent && (aCurrentTabIndex == 0) && |
4404 | currentContent->IsXULElement(nsGkAtoms::panel)) { |
4405 | nsMenuPopupFrame* popupFrame = do_QueryFrame(frame); |
4406 | // Check if the panel is open. Closed panels are ignored since you can't |
4407 | // focus anything in them. |
4408 | if (popupFrame && popupFrame->IsOpen()) { |
4409 | // When moving backward, skip the popup we started in otherwise it |
4410 | // will be selected again. |
4411 | bool validPopup = true; |
4412 | if (!aForward) { |
4413 | nsIContent* content = topLevelScopeStartContent; |
4414 | while (content) { |
4415 | if (content == currentContent) { |
4416 | validPopup = false; |
4417 | break; |
4418 | } |
4419 | |
4420 | content = content->GetParent(); |
4421 | } |
4422 | } |
4423 | |
4424 | if (validPopup) { |
4425 | // Since a panel isn't focusable itself, find the first focusable |
4426 | // content within the popup. If there isn't any focusable content |
4427 | // in the popup, skip this popup and continue iterating through the |
4428 | // frames. We pass the panel itself (currentContent) as the starting |
4429 | // and root content, so that we only find content within the panel. |
4430 | // Note also that we pass false for aForDocumentNavigation since we |
4431 | // want to locate the first content, not the first document. |
4432 | nsresult rv = GetNextTabbableContent( |
4433 | aPresShell, currentContent, nullptr, currentContent, true, 1, |
4434 | false, false, aNavigateByKey, false, |
4435 | aReachedToEndForDocumentNavigation, aResultContent); |
4436 | if (NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1))) && *aResultContent) { |
4437 | return rv; |
4438 | } |
4439 | } |
4440 | } |
4441 | } |
4442 | |
4443 | // As of now, 2018/04/12, sequential focus navigation is still |
4444 | // in the obsolete Shadow DOM specification. |
4445 | // http://w3c.github.io/webcomponents/spec/shadow/#sequential-focus-navigation |
4446 | // "if ELEMENT is focusable, a shadow host, or a slot element, |
4447 | // append ELEMENT to NAVIGATION-ORDER." |
4448 | // and later in "For each element ELEMENT in NAVIGATION-ORDER: " |
4449 | // hosts and slots are handled before other elements. |
4450 | if (currentTopLevelScopeOwner && |
4451 | !IsOpenPopoverWithInvoker(currentTopLevelScopeOwner)) { |
4452 | bool focusableHostSlot; |
4453 | int32_t tabIndex = HostOrSlotTabIndexValue(currentTopLevelScopeOwner, |
4454 | &focusableHostSlot); |
4455 | // Host or slot itself isn't focusable or going backwards, enter its |
4456 | // scope. |
4457 | if ((!aForward || !focusableHostSlot) && tabIndex >= 0 && |
4458 | (aIgnoreTabIndex || aCurrentTabIndex == tabIndex)) { |
4459 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
4460 | currentTopLevelScopeOwner, currentTopLevelScopeOwner, |
4461 | aOriginalStartContent, aForward, aForward ? 1 : 0, |
4462 | aIgnoreTabIndex, aForDocumentNavigation, aNavigateByKey, |
4463 | true /* aSkipOwner */, aReachedToEndForDocumentNavigation); |
4464 | if (contentToFocus) { |
4465 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
4466 | return NS_OK; |
4467 | } |
4468 | // If we've wrapped around already, then carry on. |
4469 | if (aOriginalStartContent && |
4470 | currentTopLevelScopeOwner == |
4471 | GetTopLevelScopeOwner(aOriginalStartContent)) { |
4472 | // FIXME: Shouldn't this return null instead? aOriginalStartContent |
4473 | // isn't focusable after all. |
4474 | NS_ADDREF(*aResultContent = aOriginalStartContent)(*aResultContent = aOriginalStartContent)->AddRef(); |
4475 | return NS_OK; |
4476 | } |
4477 | } |
4478 | // There is no next tabbable content in currentTopLevelScopeOwner's |
4479 | // scope. We should continue the loop in order to skip all contents that |
4480 | // is in currentTopLevelScopeOwner's scope. |
4481 | continue; |
4482 | } |
4483 | |
4484 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker (GetTopLevelScopeOwner(currentContent)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetTopLevelScopeOwner(currentContent ) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent))" " (" "currentContent should be in top-level-scope at this point unless " "for popover case" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4488); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent))" ") (" "currentContent should be in top-level-scope at this point unless " "for popover case" ")"); do { *((volatile int*)__null) = 4488 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
4485 | !GetTopLevelScopeOwner(currentContent) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker (GetTopLevelScopeOwner(currentContent)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetTopLevelScopeOwner(currentContent ) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent))" " (" "currentContent should be in top-level-scope at this point unless " "for popover case" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4488); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent))" ") (" "currentContent should be in top-level-scope at this point unless " "for popover case" ")"); do { *((volatile int*)__null) = 4488 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
4486 | IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent)),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker (GetTopLevelScopeOwner(currentContent)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetTopLevelScopeOwner(currentContent ) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent))" " (" "currentContent should be in top-level-scope at this point unless " "for popover case" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4488); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent))" ") (" "currentContent should be in top-level-scope at this point unless " "for popover case" ")"); do { *((volatile int*)__null) = 4488 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
4487 | "currentContent should be in top-level-scope at this point unless "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker (GetTopLevelScopeOwner(currentContent)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetTopLevelScopeOwner(currentContent ) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent))" " (" "currentContent should be in top-level-scope at this point unless " "for popover case" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4488); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent))" ") (" "currentContent should be in top-level-scope at this point unless " "for popover case" ")"); do { *((volatile int*)__null) = 4488 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
4488 | "for popover case")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker (GetTopLevelScopeOwner(currentContent)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetTopLevelScopeOwner(currentContent ) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent))" " (" "currentContent should be in top-level-scope at this point unless " "for popover case" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4488); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetTopLevelScopeOwner(currentContent) || IsOpenPopoverWithInvoker(GetTopLevelScopeOwner(currentContent))" ") (" "currentContent should be in top-level-scope at this point unless " "for popover case" ")"); do { *((volatile int*)__null) = 4488 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
4489 | |
4490 | // TabIndex not set defaults to 0 for form elements, anchors and other |
4491 | // elements that are normally focusable. Tabindex defaults to -1 |
4492 | // for elements that are not normally focusable. |
4493 | // The returned computed tabindex from IsFocusable() is as follows: |
4494 | // clang-format off |
4495 | // < 0 not tabbable at all |
4496 | // == 0 in normal tab order (last after positive tabindexed items) |
4497 | // > 0 can be tabbed to in the order specified by this value |
4498 | // clang-format on |
4499 | int32_t tabIndex = frame->IsFocusable().mTabIndex; |
4500 | |
4501 | LOGCONTENTNAVIGATION("Next Tabbable %s:", frame->GetContent())if ((__builtin_expect(!!(mozilla::detail::log_test(gFocusNavigationLog , LogLevel::Debug)), 0))) { nsAutoCString tag("(none)"_ns); if (frame->GetContent()) { frame->GetContent()->NodeInfo ()->NameAtom()->ToUTF8String(tag); } do { const ::mozilla ::LogModule* moz_real_module = gFocusNavigationLog; if ((__builtin_expect (!!(mozilla::detail::log_test(moz_real_module, LogLevel::Debug )), 0))) { mozilla::detail::log_print(moz_real_module, LogLevel ::Debug, "Next Tabbable %s:", tag.get()); } } while (0); }; |
4502 | LOGFOCUSNAVIGATION(do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " with tabindex: %d expected: %d" , tabIndex, aCurrentTabIndex); } } while (0) |
4503 | (" with tabindex: %d expected: %d", tabIndex, aCurrentTabIndex))do { const ::mozilla::LogModule* moz_real_module = gFocusNavigationLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, " with tabindex: %d expected: %d" , tabIndex, aCurrentTabIndex); } } while (0); |
4504 | |
4505 | if (tabIndex >= 0) { |
4506 | NS_ASSERTION(currentContent,do { if (!(currentContent)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "IsFocusable set a tabindex for a frame with no content", "currentContent" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4507); MOZ_PretendNoReturn(); } } while (0) |
4507 | "IsFocusable set a tabindex for a frame with no content")do { if (!(currentContent)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "IsFocusable set a tabindex for a frame with no content", "currentContent" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4507); MOZ_PretendNoReturn(); } } while (0); |
4508 | if (!aForDocumentNavigation && |
4509 | currentContent->IsHTMLElement(nsGkAtoms::img) && |
4510 | currentContent->AsElement()->HasAttr(nsGkAtoms::usemap)) { |
4511 | // This is an image with a map. Image map areas are not traversed by |
4512 | // nsFrameIterator so look for the next or previous area element. |
4513 | nsIContent* areaContent = GetNextTabbableMapArea( |
4514 | aForward, aCurrentTabIndex, currentContent->AsElement(), |
4515 | iterStartContent); |
4516 | if (areaContent) { |
4517 | NS_ADDREF(*aResultContent = areaContent)(*aResultContent = areaContent)->AddRef(); |
4518 | return NS_OK; |
4519 | } |
4520 | } else if (aIgnoreTabIndex || aCurrentTabIndex == tabIndex) { |
4521 | // break out if we've wrapped around to the start again. |
4522 | if (aOriginalStartContent && |
4523 | currentContent == aOriginalStartContent) { |
4524 | NS_ADDREF(*aResultContent = currentContent)(*aResultContent = currentContent)->AddRef(); |
4525 | return NS_OK; |
4526 | } |
4527 | |
4528 | // If this is a remote child browser, call NavigateDocument to have |
4529 | // the child process continue the navigation. Return a special error |
4530 | // code to have the caller return early. If the child ends up not |
4531 | // being focusable in some way, the child process will call back |
4532 | // into document navigation again by calling MoveFocus. |
4533 | if (BrowserParent* remote = BrowserParent::GetFrom(currentContent)) { |
4534 | if (aNavigateByKey) { |
4535 | remote->NavigateByKey(aForward, aForDocumentNavigation); |
4536 | return NS_SUCCESS_DOM_NO_OPERATION; |
4537 | } |
4538 | return NS_OK; |
4539 | } |
4540 | |
4541 | // Same as above but for out-of-process iframes |
4542 | if (auto* bbc = BrowserBridgeChild::GetFrom(currentContent)) { |
4543 | if (aNavigateByKey) { |
4544 | bbc->NavigateByKey(aForward, aForDocumentNavigation); |
4545 | return NS_SUCCESS_DOM_NO_OPERATION; |
4546 | } |
4547 | return NS_OK; |
4548 | } |
4549 | |
4550 | // Next, for document navigation, check if this a non-remote child |
4551 | // document. |
4552 | bool checkSubDocument = true; |
4553 | if (aForDocumentNavigation && |
4554 | TryDocumentNavigation(currentContent, &checkSubDocument, |
4555 | aResultContent)) { |
4556 | return NS_OK; |
4557 | } |
4558 | |
4559 | if (checkSubDocument) { |
4560 | // found a node with a matching tab index. Check if it is a child |
4561 | // frame. If so, navigate into the child frame instead. |
4562 | if (TryToMoveFocusToSubDocument( |
4563 | currentContent, aOriginalStartContent, aForward, |
4564 | aForDocumentNavigation, aNavigateByKey, |
4565 | aReachedToEndForDocumentNavigation, aResultContent)) { |
4566 | MOZ_ASSERT(*aResultContent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(*aResultContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(*aResultContent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("*aResultContent" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4566); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*aResultContent" ")"); do { *((volatile int*)__null) = 4566; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
4567 | return NS_OK; |
4568 | } |
4569 | // otherwise, use this as the next content node to tab to, unless |
4570 | // this was the element we started on. This would happen for |
4571 | // instance on an element with child frames, where frame navigation |
4572 | // could return the original element again. In that case, just skip |
4573 | // it. Also, if the next content node is the root content, then |
4574 | // return it. This latter case would happen only if someone made a |
4575 | // popup focusable. |
4576 | else if (currentContent == aRootContent || |
4577 | currentContent != startContent) { |
4578 | NS_ADDREF(*aResultContent = currentContent)(*aResultContent = currentContent)->AddRef(); |
4579 | return NS_OK; |
4580 | } |
4581 | } else if (currentContent && aReachedToEndForDocumentNavigation && |
4582 | StaticPrefs::dom_disable_tab_focus_to_root_element() && |
4583 | nsContentUtils::IsChromeDoc( |
4584 | currentContent->GetComposedDoc())) { |
4585 | // aReachedToEndForDocumentNavigation is true means |
4586 | // 1. This is a document navigation (i.e, VK_F6, Control + Tab) |
4587 | // 2. This is the top-level document (Note that we may start from |
4588 | // a subdocument) |
4589 | // 3. We've searched through the this top-level document already |
4590 | if (!GetRootForChildDocument(currentContent)) { |
4591 | // We'd like to focus the first focusable element of this |
4592 | // top-level chrome document. |
4593 | if (currentContent == aRootContent || |
4594 | currentContent != startContent) { |
4595 | NS_ADDREF(*aResultContent = currentContent)(*aResultContent = currentContent)->AddRef(); |
4596 | return NS_OK; |
4597 | } |
4598 | } |
4599 | } |
4600 | } |
4601 | } else if (aOriginalStartContent && |
4602 | currentContent == aOriginalStartContent) { |
4603 | // not focusable, so return if we have wrapped around to the original |
4604 | // content. This is necessary in case the original starting content was |
4605 | // not focusable. |
4606 | // |
4607 | // FIXME: Shouldn't this return null instead? currentContent isn't |
4608 | // focusable after all. |
4609 | NS_ADDREF(*aResultContent = currentContent)(*aResultContent = currentContent)->AddRef(); |
4610 | return NS_OK; |
4611 | } |
4612 | |
4613 | // Move to the next or previous frame, but ignore continuation frames |
4614 | // since only the first frame should be involved in focusability. |
4615 | // Otherwise, a loop will occur in the following example: |
4616 | // <span tabindex="1">...<a/><a/>...</span> |
4617 | // where the text wraps onto multiple lines. Tabbing from the second |
4618 | // link can find one of the span's continuation frames between the link |
4619 | // and the end of the span, and the span would end up getting focused |
4620 | // again. |
4621 | do { |
4622 | if (aForward) { |
4623 | frameIterator->Next(); |
4624 | } else { |
4625 | frameIterator->Prev(); |
4626 | } |
4627 | frame = frameIterator->CurrentItem(); |
4628 | } while (frame && frame->GetPrevContinuation()); |
4629 | } |
4630 | |
4631 | // If already at lowest priority tab (0), end search completely. |
4632 | // A bit counterintuitive but true, tabindex order goes 1, 2, ... 32767, 0 |
4633 | if (aCurrentTabIndex == (aForward ? 0 : 1)) { |
4634 | // if going backwards, the canvas should be focused once the beginning |
4635 | // has been reached, so get the root element. |
4636 | if (!aForward && !StaticPrefs::dom_disable_tab_focus_to_root_element()) { |
4637 | nsCOMPtr<nsPIDOMWindowOuter> window = GetCurrentWindow(aRootContent); |
4638 | 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/base/nsFocusManager.cpp" , 4638); return NS_ERROR_FAILURE; } } while (false); |
4639 | |
4640 | RefPtr<Element> docRoot = GetRootForFocus( |
4641 | window, aRootContent->GetComposedDoc(), false, true); |
4642 | FocusFirst(docRoot, aResultContent, |
4643 | false /* aReachedToEndForDocumentNavigation */); |
4644 | } |
4645 | break; |
4646 | } |
4647 | |
4648 | // continue looking for next highest priority tabindex |
4649 | aCurrentTabIndex = |
4650 | GetNextTabIndex(aRootContent, aCurrentTabIndex, aForward); |
4651 | startContent = iterStartContent = aRootContent; |
4652 | currentTopLevelScopeOwner = GetTopLevelScopeOwner(startContent); |
4653 | } |
4654 | |
4655 | return NS_OK; |
4656 | } |
4657 | |
4658 | bool nsFocusManager::TryDocumentNavigation(nsIContent* aCurrentContent, |
4659 | bool* aCheckSubDocument, |
4660 | nsIContent** aResultContent) { |
4661 | *aCheckSubDocument = true; |
4662 | if (RefPtr<Element> rootElementForChildDocument = |
4663 | GetRootForChildDocument(aCurrentContent)) { |
4664 | // If GetRootForChildDocument returned something then call |
4665 | // FocusFirst to find the root or first element to focus within |
4666 | // the child document. If this is a frameset though, skip this and |
4667 | // fall through to normal tab navigation to iterate into |
4668 | // the frameset's frames and locate the first focusable frame. |
4669 | if (!rootElementForChildDocument->IsHTMLElement(nsGkAtoms::frameset)) { |
4670 | *aCheckSubDocument = false; |
4671 | Unused << FocusFirst(rootElementForChildDocument, aResultContent, |
4672 | false /* aReachedToEndForDocumentNavigation */); |
4673 | return *aResultContent != nullptr; |
4674 | } |
4675 | } else { |
4676 | // Set aCheckSubDocument to false, as this was neither a frame |
4677 | // type element or a child document that was focusable. |
4678 | *aCheckSubDocument = false; |
4679 | } |
4680 | |
4681 | return false; |
4682 | } |
4683 | |
4684 | bool nsFocusManager::TryToMoveFocusToSubDocument( |
4685 | nsIContent* aCurrentContent, nsIContent* aOriginalStartContent, |
4686 | bool aForward, bool aForDocumentNavigation, bool aNavigateByKey, |
4687 | bool aReachedToEndForDocumentNavigation, nsIContent** aResultContent) { |
4688 | Document* doc = aCurrentContent->GetComposedDoc(); |
4689 | NS_ASSERTION(doc, "content not in document")do { if (!(doc)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "content not in document" , "doc", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4689); MOZ_PretendNoReturn(); } } while (0); |
4690 | Document* subdoc = doc->GetSubDocumentFor(aCurrentContent); |
4691 | if (subdoc && !subdoc->EventHandlingSuppressed()) { |
4692 | if (aForward && !StaticPrefs::dom_disable_tab_focus_to_root_element()) { |
4693 | // When tabbing forward into a frame, return the root |
4694 | // frame so that the canvas becomes focused. |
4695 | if (nsCOMPtr<nsPIDOMWindowOuter> subframe = subdoc->GetWindow()) { |
4696 | *aResultContent = GetRootForFocus(subframe, subdoc, false, true); |
4697 | if (*aResultContent) { |
4698 | NS_ADDREF(*aResultContent)(*aResultContent)->AddRef(); |
4699 | return true; |
4700 | } |
4701 | } |
4702 | } |
4703 | if (RefPtr<Element> rootElement = subdoc->GetRootElement()) { |
4704 | if (RefPtr<PresShell> subPresShell = subdoc->GetPresShell()) { |
4705 | nsresult rv = GetNextTabbableContent( |
4706 | subPresShell, rootElement, aOriginalStartContent, rootElement, |
4707 | aForward, (aForward ? 1 : 0), false, aForDocumentNavigation, |
4708 | aNavigateByKey, false, aReachedToEndForDocumentNavigation, |
4709 | aResultContent); |
4710 | NS_ENSURE_SUCCESS(rv, false)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", "false", 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/base/nsFocusManager.cpp" , 4710); return false; } } while (false); |
4711 | if (*aResultContent) { |
4712 | return true; |
4713 | } |
4714 | if (rootElement->IsEditable() && |
4715 | StaticPrefs::dom_disable_tab_focus_to_root_element()) { |
4716 | // Only move to the root element with a valid reason |
4717 | *aResultContent = rootElement; |
4718 | NS_ADDREF(*aResultContent)(*aResultContent)->AddRef(); |
4719 | return true; |
4720 | } |
4721 | } |
4722 | } |
4723 | } |
4724 | return false; |
4725 | } |
4726 | |
4727 | nsIContent* nsFocusManager::GetNextTabbableMapArea(bool aForward, |
4728 | int32_t aCurrentTabIndex, |
4729 | Element* aImageContent, |
4730 | nsIContent* aStartContent) { |
4731 | if (aImageContent->IsInComposedDoc()) { |
4732 | HTMLImageElement* imgElement = HTMLImageElement::FromNode(aImageContent); |
4733 | // The caller should check the element type, so we can assert here. |
4734 | MOZ_ASSERT(imgElement)do { static_assert( mozilla::detail::AssertionConditionType< decltype(imgElement)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(imgElement))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("imgElement", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 4734); AnnotateMozCrashReason("MOZ_ASSERT" "(" "imgElement" ")"); do { *((volatile int*)__null) = 4734; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
4735 | |
4736 | nsCOMPtr<nsIContent> mapContent = imgElement->FindImageMap(); |
4737 | if (!mapContent) { |
4738 | return nullptr; |
4739 | } |
4740 | // First see if the the start content is in this map |
4741 | Maybe<uint32_t> indexOfStartContent = |
4742 | mapContent->ComputeIndexOf(aStartContent); |
4743 | nsIContent* scanStartContent; |
4744 | Focusable focusable; |
4745 | if (indexOfStartContent.isNothing() || |
4746 | ((focusable = aStartContent->IsFocusableWithoutStyle()) && |
4747 | focusable.mTabIndex != aCurrentTabIndex)) { |
4748 | // If aStartContent is in this map we must start iterating past it. |
4749 | // We skip the case where aStartContent has tabindex == aStartContent |
4750 | // since the next tab ordered element might be before it |
4751 | // (or after for backwards) in the child list. |
4752 | scanStartContent = |
4753 | aForward ? mapContent->GetFirstChild() : mapContent->GetLastChild(); |
4754 | } else { |
4755 | scanStartContent = aForward ? aStartContent->GetNextSibling() |
4756 | : aStartContent->GetPreviousSibling(); |
4757 | } |
4758 | |
4759 | for (nsCOMPtr<nsIContent> areaContent = scanStartContent; areaContent; |
4760 | areaContent = aForward ? areaContent->GetNextSibling() |
4761 | : areaContent->GetPreviousSibling()) { |
4762 | focusable = areaContent->IsFocusableWithoutStyle(); |
4763 | if (focusable && focusable.mTabIndex == aCurrentTabIndex) { |
4764 | return areaContent; |
4765 | } |
4766 | } |
4767 | } |
4768 | |
4769 | return nullptr; |
4770 | } |
4771 | |
4772 | int32_t nsFocusManager::GetNextTabIndex(nsIContent* aParent, |
4773 | int32_t aCurrentTabIndex, |
4774 | bool aForward) { |
4775 | int32_t tabIndex, childTabIndex; |
4776 | StyleChildrenIterator iter(aParent); |
4777 | |
4778 | if (aForward) { |
4779 | tabIndex = 0; |
4780 | for (nsIContent* child = iter.GetNextChild(); child; |
4781 | child = iter.GetNextChild()) { |
4782 | // Skip child's descendants if child is a shadow host or slot, as they are |
4783 | // in the focus navigation scope owned by child's shadow root |
4784 | if (!IsHostOrSlot(child)) { |
4785 | childTabIndex = GetNextTabIndex(child, aCurrentTabIndex, aForward); |
4786 | if (childTabIndex > aCurrentTabIndex && childTabIndex != tabIndex) { |
4787 | tabIndex = (tabIndex == 0 || childTabIndex < tabIndex) ? childTabIndex |
4788 | : tabIndex; |
4789 | } |
4790 | } |
4791 | |
4792 | nsAutoString tabIndexStr; |
4793 | if (child->IsElement()) { |
4794 | child->AsElement()->GetAttr(nsGkAtoms::tabindex, tabIndexStr); |
4795 | } |
4796 | nsresult ec; |
4797 | int32_t val = tabIndexStr.ToInteger(&ec); |
4798 | if (NS_SUCCEEDED(ec)((bool)(__builtin_expect(!!(!NS_FAILED_impl(ec)), 1))) && val > aCurrentTabIndex && val != tabIndex) { |
4799 | tabIndex = (tabIndex == 0 || val < tabIndex) ? val : tabIndex; |
4800 | } |
4801 | } |
4802 | } else { /* !aForward */ |
4803 | tabIndex = 1; |
4804 | for (nsIContent* child = iter.GetNextChild(); child; |
4805 | child = iter.GetNextChild()) { |
4806 | // Skip child's descendants if child is a shadow host or slot, as they are |
4807 | // in the focus navigation scope owned by child's shadow root |
4808 | if (!IsHostOrSlot(child)) { |
4809 | childTabIndex = GetNextTabIndex(child, aCurrentTabIndex, aForward); |
4810 | if ((aCurrentTabIndex == 0 && childTabIndex > tabIndex) || |
4811 | (childTabIndex < aCurrentTabIndex && childTabIndex > tabIndex)) { |
4812 | tabIndex = childTabIndex; |
4813 | } |
4814 | } |
4815 | |
4816 | nsAutoString tabIndexStr; |
4817 | if (child->IsElement()) { |
4818 | child->AsElement()->GetAttr(nsGkAtoms::tabindex, tabIndexStr); |
4819 | } |
4820 | nsresult ec; |
4821 | int32_t val = tabIndexStr.ToInteger(&ec); |
4822 | if (NS_SUCCEEDED(ec)((bool)(__builtin_expect(!!(!NS_FAILED_impl(ec)), 1)))) { |
4823 | if ((aCurrentTabIndex == 0 && val > tabIndex) || |
4824 | (val < aCurrentTabIndex && val > tabIndex)) { |
4825 | tabIndex = val; |
4826 | } |
4827 | } |
4828 | } |
4829 | } |
4830 | |
4831 | return tabIndex; |
4832 | } |
4833 | |
4834 | nsresult nsFocusManager::FocusFirst(Element* aRootElement, |
4835 | nsIContent** aNextContent, |
4836 | bool aReachedToEndForDocumentNavigation) { |
4837 | if (!aRootElement) { |
4838 | return NS_OK; |
4839 | } |
4840 | |
4841 | Document* doc = aRootElement->GetComposedDoc(); |
4842 | if (doc) { |
4843 | if (nsContentUtils::IsChromeDoc(doc)) { |
4844 | // If the redirectdocumentfocus attribute is set, redirect the focus to a |
4845 | // specific element. This is primarily used to retarget the focus to the |
4846 | // urlbar during document navigation. |
4847 | nsAutoString retarget; |
4848 | |
4849 | if (aRootElement->GetAttr(nsGkAtoms::retargetdocumentfocus, retarget)) { |
4850 | RefPtr<Element> element = doc->GetElementById(retarget); |
4851 | nsCOMPtr<nsIContent> retargetElement = |
4852 | FlushAndCheckIfFocusable(element, 0); |
4853 | if (retargetElement) { |
4854 | retargetElement.forget(aNextContent); |
4855 | return NS_OK; |
4856 | } |
4857 | } |
4858 | } |
4859 | |
4860 | nsCOMPtr<nsIDocShell> docShell = doc->GetDocShell(); |
4861 | if (docShell->ItemType() == nsIDocShellTreeItem::typeChrome) { |
4862 | // If the found content is in a chrome shell, navigate forward one |
4863 | // tabbable item so that the first item is focused. Note that we |
4864 | // always go forward and not back here. |
4865 | if (RefPtr<PresShell> presShell = doc->GetPresShell()) { |
4866 | return GetNextTabbableContent( |
4867 | presShell, aRootElement, nullptr, aRootElement, true, 1, false, |
4868 | StaticPrefs::dom_disable_tab_focus_to_root_element() |
4869 | ? aReachedToEndForDocumentNavigation |
4870 | : false, |
4871 | true, false, aReachedToEndForDocumentNavigation, aNextContent); |
4872 | } |
4873 | } |
4874 | } |
4875 | |
4876 | NS_ADDREF(*aNextContent = aRootElement)(*aNextContent = aRootElement)->AddRef(); |
4877 | return NS_OK; |
4878 | } |
4879 | |
4880 | Element* nsFocusManager::GetRootForFocus(nsPIDOMWindowOuter* aWindow, |
4881 | Document* aDocument, |
4882 | bool aForDocumentNavigation, |
4883 | bool aCheckVisibility) { |
4884 | if (!aForDocumentNavigation) { |
4885 | nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell(); |
4886 | if (docShell->ItemType() == nsIDocShellTreeItem::typeChrome) { |
4887 | return nullptr; |
4888 | } |
4889 | } |
4890 | |
4891 | if (aCheckVisibility && !IsWindowVisible(aWindow)) return nullptr; |
4892 | |
4893 | // If the body is contenteditable, use the editor's root element rather than |
4894 | // the actual root element. |
4895 | RefPtr<Element> rootElement = |
4896 | nsLayoutUtils::GetEditableRootContentByContentEditable(aDocument); |
4897 | if (!rootElement || !rootElement->GetPrimaryFrame()) { |
4898 | rootElement = aDocument->GetRootElement(); |
4899 | if (!rootElement) { |
4900 | return nullptr; |
4901 | } |
4902 | } |
4903 | |
4904 | if (aCheckVisibility && !rootElement->GetPrimaryFrame()) { |
4905 | return nullptr; |
4906 | } |
4907 | |
4908 | // Finally, check if this is a frameset |
4909 | if (aDocument && aDocument->IsHTMLOrXHTML()) { |
4910 | Element* htmlChild = aDocument->GetHtmlChildElement(nsGkAtoms::frameset); |
4911 | if (htmlChild) { |
4912 | // In document navigation mode, return the frameset so that navigation |
4913 | // descends into the child frames. |
4914 | return aForDocumentNavigation ? htmlChild : nullptr; |
4915 | } |
4916 | } |
4917 | |
4918 | return rootElement; |
4919 | } |
4920 | |
4921 | Element* nsFocusManager::GetRootForChildDocument(nsIContent* aContent) { |
4922 | // Check for elements that represent child documents, that is, browsers, |
4923 | // editors or frames from a frameset. We don't include iframes since we |
4924 | // consider them to be an integral part of the same window or page. |
4925 | if (!aContent || !(aContent->IsXULElement(nsGkAtoms::browser) || |
4926 | aContent->IsXULElement(nsGkAtoms::editor) || |
4927 | aContent->IsHTMLElement(nsGkAtoms::frame))) { |
4928 | return nullptr; |
4929 | } |
4930 | |
4931 | Document* doc = aContent->GetComposedDoc(); |
4932 | if (!doc) { |
4933 | return nullptr; |
4934 | } |
4935 | |
4936 | Document* subdoc = doc->GetSubDocumentFor(aContent); |
4937 | if (!subdoc || subdoc->EventHandlingSuppressed()) { |
4938 | return nullptr; |
4939 | } |
4940 | |
4941 | nsCOMPtr<nsPIDOMWindowOuter> window = subdoc->GetWindow(); |
4942 | return GetRootForFocus(window, subdoc, true, true); |
4943 | } |
4944 | |
4945 | static bool IsLink(nsIContent* aContent) { |
4946 | return aContent->IsElement() && aContent->AsElement()->IsLink(); |
4947 | } |
4948 | |
4949 | void nsFocusManager::GetFocusInSelection(nsPIDOMWindowOuter* aWindow, |
4950 | nsIContent* aStartSelection, |
4951 | nsIContent* aEndSelection, |
4952 | nsIContent** aFocusedContent) { |
4953 | *aFocusedContent = nullptr; |
4954 | |
4955 | nsCOMPtr<nsIContent> testContent = aStartSelection; |
4956 | nsCOMPtr<nsIContent> nextTestContent = aEndSelection; |
4957 | |
4958 | nsCOMPtr<nsIContent> currentFocus = aWindow->GetFocusedElement(); |
4959 | |
4960 | // We now have the correct start node in selectionContent! |
4961 | // Search for focusable elements, starting with selectionContent |
4962 | |
4963 | // Method #1: Keep going up while we look - an ancestor might be focusable |
4964 | // We could end the loop earlier, such as when we're no longer |
4965 | // in the same frame, by comparing selectionContent->GetPrimaryFrame() |
4966 | // with a variable holding the starting selectionContent |
4967 | while (testContent) { |
4968 | // Keep testing while selectionContent is equal to something, |
4969 | // eventually we'll run out of ancestors |
4970 | |
4971 | if (testContent == currentFocus || IsLink(testContent)) { |
4972 | testContent.forget(aFocusedContent); |
4973 | return; |
4974 | } |
4975 | |
4976 | // Get the parent |
4977 | testContent = testContent->GetParent(); |
4978 | |
4979 | if (!testContent) { |
4980 | // We run this loop again, checking the ancestor chain of the selection's |
4981 | // end point |
4982 | testContent = nextTestContent; |
4983 | nextTestContent = nullptr; |
4984 | } |
4985 | } |
4986 | |
4987 | // We couldn't find an anchor that was an ancestor of the selection start |
4988 | // Method #2: look for anchor in selection's primary range (depth first |
4989 | // search) |
4990 | |
4991 | nsCOMPtr<nsIContent> selectionNode = aStartSelection; |
4992 | nsCOMPtr<nsIContent> endSelectionNode = aEndSelection; |
4993 | nsCOMPtr<nsIContent> testNode; |
4994 | |
4995 | do { |
4996 | testContent = selectionNode; |
4997 | |
4998 | // We're looking for any focusable link that could be part of the |
4999 | // main document's selection. |
5000 | if (testContent == currentFocus || IsLink(testContent)) { |
5001 | testContent.forget(aFocusedContent); |
5002 | return; |
5003 | } |
5004 | |
5005 | nsIContent* testNode = selectionNode->GetFirstChild(); |
5006 | if (testNode) { |
5007 | selectionNode = testNode; |
5008 | continue; |
5009 | } |
5010 | |
5011 | if (selectionNode == endSelectionNode) { |
5012 | break; |
5013 | } |
5014 | testNode = selectionNode->GetNextSibling(); |
5015 | if (testNode) { |
5016 | selectionNode = testNode; |
5017 | continue; |
5018 | } |
5019 | |
5020 | do { |
5021 | // GetParent is OK here, instead of GetParentNode, because the only case |
5022 | // where the latter returns something different from the former is when |
5023 | // GetParentNode is the document. But in that case we would simply get |
5024 | // null for selectionNode when setting it to testNode->GetNextSibling() |
5025 | // (because a document has no next sibling). And then the next iteration |
5026 | // of this loop would get null for GetParentNode anyway, and break out of |
5027 | // all the loops. |
5028 | testNode = selectionNode->GetParent(); |
5029 | if (!testNode || testNode == endSelectionNode) { |
5030 | selectionNode = nullptr; |
5031 | break; |
5032 | } |
5033 | selectionNode = testNode->GetNextSibling(); |
5034 | if (selectionNode) { |
5035 | break; |
5036 | } |
5037 | selectionNode = testNode; |
5038 | } while (true); |
5039 | } while (selectionNode && selectionNode != endSelectionNode); |
5040 | } |
5041 | |
5042 | static void MaybeUnlockPointer(BrowsingContext* aCurrentFocusedContext) { |
5043 | if (!PointerLockManager::IsInLockContext(aCurrentFocusedContext)) { |
5044 | PointerLockManager::Unlock(); |
5045 | } |
5046 | } |
5047 | |
5048 | class PointerUnlocker : public Runnable { |
5049 | public: |
5050 | PointerUnlocker() : mozilla::Runnable("PointerUnlocker") { |
5051 | 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/base/nsFocusManager.cpp" , 5051); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5051; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5052 | MOZ_ASSERT(!PointerUnlocker::sActiveUnlocker)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!PointerUnlocker::sActiveUnlocker)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!PointerUnlocker::sActiveUnlocker ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!PointerUnlocker::sActiveUnlocker", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5052); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!PointerUnlocker::sActiveUnlocker" ")"); do { *((volatile int*)__null) = 5052; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5053 | PointerUnlocker::sActiveUnlocker = this; |
5054 | } |
5055 | |
5056 | ~PointerUnlocker() { |
5057 | if (PointerUnlocker::sActiveUnlocker == this) { |
5058 | PointerUnlocker::sActiveUnlocker = nullptr; |
5059 | } |
5060 | } |
5061 | |
5062 | NS_IMETHODvirtual nsresult Run() override { |
5063 | if (PointerUnlocker::sActiveUnlocker == this) { |
5064 | PointerUnlocker::sActiveUnlocker = nullptr; |
5065 | } |
5066 | NS_ENSURE_STATE(nsFocusManager::GetFocusManager())do { if ((__builtin_expect(!!(!(nsFocusManager::GetFocusManager ())), 0))) { NS_DebugBreak(NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "nsFocusManager::GetFocusManager()" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5066); return NS_ERROR_UNEXPECTED; } } while (false); |
5067 | nsPIDOMWindowOuter* focused = |
5068 | nsFocusManager::GetFocusManager()->GetFocusedWindow(); |
5069 | MaybeUnlockPointer(focused ? focused->GetBrowsingContext() : nullptr); |
5070 | return NS_OK; |
5071 | } |
5072 | |
5073 | static PointerUnlocker* sActiveUnlocker; |
5074 | }; |
5075 | |
5076 | PointerUnlocker* PointerUnlocker::sActiveUnlocker = nullptr; |
5077 | |
5078 | void nsFocusManager::SetFocusedBrowsingContext(BrowsingContext* aContext, |
5079 | uint64_t aActionId) { |
5080 | if (XRE_IsParentProcess()) { |
5081 | return; |
5082 | } |
5083 | MOZ_ASSERT(!ActionIdComparableAndLower(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInContent ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInContent )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInContent)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5084); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInContent)" ")"); do { *((volatile int*)__null) = 5084; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
5084 | aActionId, mActionIdForFocusedBrowsingContextInContent))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInContent ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInContent )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInContent)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5084); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInContent)" ")"); do { *((volatile int*)__null) = 5084; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5085 | mFocusedBrowsingContextInContent = aContext; |
5086 | mActionIdForFocusedBrowsingContextInContent = aActionId; |
5087 | if (aContext) { |
5088 | // We don't send the unset but instead expect the set from |
5089 | // elsewhere to take care of it. XXX Is that bad? |
5090 | MOZ_ASSERT(aContext->IsInProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContext->IsInProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContext->IsInProcess())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContext->IsInProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5090); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContext->IsInProcess()" ")"); do { *((volatile int*)__null) = 5090; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5091 | mozilla::dom::ContentChild* contentChild = |
5092 | mozilla::dom::ContentChild::GetSingleton(); |
5093 | MOZ_ASSERT(contentChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("contentChild", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5093); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 5093; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5094 | contentChild->SendSetFocusedBrowsingContext(aContext, aActionId); |
5095 | } |
5096 | } |
5097 | |
5098 | void nsFocusManager::SetFocusedBrowsingContextFromOtherProcess( |
5099 | BrowsingContext* aContext, uint64_t aActionId) { |
5100 | 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/base/nsFocusManager.cpp" , 5100); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5100; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5101 | MOZ_ASSERT(aContext)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContext", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5101); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContext" ")" ); do { *((volatile int*)__null) = 5101; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5102 | if (ActionIdComparableAndLower(aActionId, |
5103 | mActionIdForFocusedBrowsingContextInContent)) { |
5104 | // Unclear if this ever happens. |
5105 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "focused from another process due to stale action id %" "l" "u" ".", aContext, aActionId); } } while (0) |
5106 | ("Ignored an attempt to set an in-process BrowsingContext [%p] as "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "focused from another process due to stale action id %" "l" "u" ".", aContext, aActionId); } } while (0) |
5107 | "focused from another process due to stale action id %" PRIu64 ".",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "focused from another process due to stale action id %" "l" "u" ".", aContext, aActionId); } } while (0) |
5108 | aContext, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "focused from another process due to stale action id %" "l" "u" ".", aContext, aActionId); } } while (0); |
5109 | return; |
5110 | } |
5111 | if (aContext->IsInProcess()) { |
5112 | // This message has been in transit for long enough that |
5113 | // the process association of aContext has changed since |
5114 | // the other content process sent the message, because |
5115 | // an iframe in that process became an out-of-process |
5116 | // iframe while the IPC broadcast that we're receiving |
5117 | // was in-flight. Let's just ignore this. |
5118 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "focused from another process, actionid: %" "l" "u" ".", aContext , aActionId); } } while (0) |
5119 | ("Ignored an attempt to set an in-process BrowsingContext [%p] as "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "focused from another process, actionid: %" "l" "u" ".", aContext , aActionId); } } while (0) |
5120 | "focused from another process, actionid: %" PRIu64 ".",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "focused from another process, actionid: %" "l" "u" ".", aContext , aActionId); } } while (0) |
5121 | aContext, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "focused from another process, actionid: %" "l" "u" ".", aContext , aActionId); } } while (0); |
5122 | return; |
5123 | } |
5124 | mFocusedBrowsingContextInContent = aContext; |
5125 | mActionIdForFocusedBrowsingContextInContent = aActionId; |
5126 | mFocusedElement = nullptr; |
5127 | mFocusedWindow = nullptr; |
5128 | } |
5129 | |
5130 | bool nsFocusManager::SetFocusedBrowsingContextInChrome( |
5131 | mozilla::dom::BrowsingContext* aContext, uint64_t aActionId) { |
5132 | MOZ_ASSERT(aActionId)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aActionId)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aActionId))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aActionId", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5132); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActionId" ")" ); do { *((volatile int*)__null) = 5132; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5133 | if (ProcessPendingFocusedBrowsingContextActionId(aActionId)) { |
5134 | MOZ_DIAGNOSTIC_ASSERT(!ActionIdComparableAndLower(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInChrome ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInChrome )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInChrome)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5135); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInChrome)" ")"); do { *((volatile int*)__null) = 5135; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
5135 | aActionId, mActionIdForFocusedBrowsingContextInChrome))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInChrome ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInChrome )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInChrome)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5135); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInChrome)" ")"); do { *((volatile int*)__null) = 5135; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5136 | mFocusedBrowsingContextInChrome = aContext; |
5137 | mActionIdForFocusedBrowsingContextInChrome = aActionId; |
5138 | return true; |
5139 | } |
5140 | return false; |
5141 | } |
5142 | |
5143 | BrowsingContext* nsFocusManager::GetFocusedBrowsingContextInChrome() { |
5144 | return mFocusedBrowsingContextInChrome; |
5145 | } |
5146 | |
5147 | void nsFocusManager::BrowsingContextDetached(BrowsingContext* aContext) { |
5148 | if (mFocusedBrowsingContextInChrome == aContext) { |
5149 | mFocusedBrowsingContextInChrome = nullptr; |
5150 | // Deliberately not adjusting the corresponding action id, because |
5151 | // we don't want changes from the past to take effect. |
5152 | } |
5153 | if (mActiveBrowsingContextInChrome == aContext) { |
5154 | mActiveBrowsingContextInChrome = nullptr; |
5155 | // Deliberately not adjusting the corresponding action id, because |
5156 | // we don't want changes from the past to take effect. |
5157 | } |
5158 | } |
5159 | |
5160 | void nsFocusManager::SetActiveBrowsingContextInContent( |
5161 | mozilla::dom::BrowsingContext* aContext, uint64_t aActionId) { |
5162 | 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/base/nsFocusManager.cpp" , 5162); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5162; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5163 | MOZ_ASSERT(!aContext || aContext->IsInProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aContext || aContext->IsInProcess())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aContext || aContext->IsInProcess()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aContext || aContext->IsInProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5163); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aContext || aContext->IsInProcess()" ")"); do { *((volatile int*)__null) = 5163; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5164 | mozilla::dom::ContentChild* contentChild = |
5165 | mozilla::dom::ContentChild::GetSingleton(); |
5166 | MOZ_ASSERT(contentChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("contentChild", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5166); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 5166; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5167 | |
5168 | if (ActionIdComparableAndLower(aActionId, |
5169 | mActionIdForActiveBrowsingContextInContent)) { |
5170 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "the active browsing context due to a stale action id %" "l" "u" ".", aContext, aActionId); } } while (0) |
5171 | ("Ignored an attempt to set an in-process BrowsingContext [%p] as "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "the active browsing context due to a stale action id %" "l" "u" ".", aContext, aActionId); } } while (0) |
5172 | "the active browsing context due to a stale action id %" PRIu64 ".",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "the active browsing context due to a stale action id %" "l" "u" ".", aContext, aActionId); } } while (0) |
5173 | aContext, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "the active browsing context due to a stale action id %" "l" "u" ".", aContext, aActionId); } } while (0); |
5174 | return; |
5175 | } |
5176 | |
5177 | if (aContext != mActiveBrowsingContextInContent) { |
5178 | if (aContext) { |
5179 | contentChild->SendSetActiveBrowsingContext(aContext, aActionId); |
5180 | } else if (mActiveBrowsingContextInContent) { |
5181 | // We want to sync this over only if this isn't happening |
5182 | // due to the active BrowsingContext switching processes, |
5183 | // in which case the BrowserChild has already marked itself |
5184 | // as destroying. |
5185 | nsPIDOMWindowOuter* outer = |
5186 | mActiveBrowsingContextInContent->GetDOMWindow(); |
5187 | if (outer) { |
5188 | nsPIDOMWindowInner* inner = outer->GetCurrentInnerWindow(); |
5189 | if (inner) { |
5190 | WindowGlobalChild* globalChild = inner->GetWindowGlobalChild(); |
5191 | if (globalChild) { |
5192 | RefPtr<BrowserChild> browserChild = globalChild->GetBrowserChild(); |
5193 | if (browserChild && !browserChild->IsDestroyed()) { |
5194 | contentChild->SendUnsetActiveBrowsingContext( |
5195 | mActiveBrowsingContextInContent, aActionId); |
5196 | } |
5197 | } |
5198 | } |
5199 | } |
5200 | } |
5201 | } |
5202 | mActiveBrowsingContextInContentSetFromOtherProcess = false; |
5203 | mActiveBrowsingContextInContent = aContext; |
5204 | mActionIdForActiveBrowsingContextInContent = aActionId; |
5205 | MaybeUnlockPointer(aContext); |
5206 | } |
5207 | |
5208 | void nsFocusManager::SetActiveBrowsingContextFromOtherProcess( |
5209 | BrowsingContext* aContext, uint64_t aActionId) { |
5210 | 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/base/nsFocusManager.cpp" , 5210); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5210; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5211 | MOZ_ASSERT(aContext)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContext", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5211); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContext" ")" ); do { *((volatile int*)__null) = 5211; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5212 | if (ActionIdComparableAndLower(aActionId, |
5213 | mActionIdForActiveBrowsingContextInContent)) { |
5214 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set active BrowsingContext [%p] from " "another process due to a stale action id %" "l" "u" ".", aContext , aActionId); } } while (0) |
5215 | ("Ignored an attempt to set active BrowsingContext [%p] from "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set active BrowsingContext [%p] from " "another process due to a stale action id %" "l" "u" ".", aContext , aActionId); } } while (0) |
5216 | "another process due to a stale action id %" PRIu64 ".",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set active BrowsingContext [%p] from " "another process due to a stale action id %" "l" "u" ".", aContext , aActionId); } } while (0) |
5217 | aContext, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set active BrowsingContext [%p] from " "another process due to a stale action id %" "l" "u" ".", aContext , aActionId); } } while (0); |
5218 | return; |
5219 | } |
5220 | if (aContext->IsInProcess()) { |
5221 | // This message has been in transit for long enough that |
5222 | // the process association of aContext has changed since |
5223 | // the other content process sent the message, because |
5224 | // an iframe in that process became an out-of-process |
5225 | // iframe while the IPC broadcast that we're receiving |
5226 | // was in-flight. Let's just ignore this. |
5227 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "active from another process. actionid: %" "l" "u", aContext , aActionId); } } while (0) |
5228 | ("Ignored an attempt to set an in-process BrowsingContext [%p] as "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "active from another process. actionid: %" "l" "u", aContext , aActionId); } } while (0) |
5229 | "active from another process. actionid: %" PRIu64,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "active from another process. actionid: %" "l" "u", aContext , aActionId); } } while (0) |
5230 | aContext, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext [%p] as " "active from another process. actionid: %" "l" "u", aContext , aActionId); } } while (0); |
5231 | return; |
5232 | } |
5233 | mActiveBrowsingContextInContentSetFromOtherProcess = true; |
5234 | mActiveBrowsingContextInContent = aContext; |
5235 | mActionIdForActiveBrowsingContextInContent = aActionId; |
5236 | MaybeUnlockPointer(aContext); |
5237 | } |
5238 | |
5239 | void nsFocusManager::UnsetActiveBrowsingContextFromOtherProcess( |
5240 | BrowsingContext* aContext, uint64_t aActionId) { |
5241 | 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/base/nsFocusManager.cpp" , 5241); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5241; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5242 | MOZ_ASSERT(aContext)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContext", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5242); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContext" ")" ); do { *((volatile int*)__null) = 5242; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5243 | if (ActionIdComparableAndLower(aActionId, |
5244 | mActionIdForActiveBrowsingContextInContent)) { |
5245 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to unset the active BrowsingContext [%p] from " "another process due to stale action id: %" "l" "u" ".", aContext , aActionId); } } while (0) |
5246 | ("Ignored an attempt to unset the active BrowsingContext [%p] from "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to unset the active BrowsingContext [%p] from " "another process due to stale action id: %" "l" "u" ".", aContext , aActionId); } } while (0) |
5247 | "another process due to stale action id: %" PRIu64 ".",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to unset the active BrowsingContext [%p] from " "another process due to stale action id: %" "l" "u" ".", aContext , aActionId); } } while (0) |
5248 | aContext, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to unset the active BrowsingContext [%p] from " "another process due to stale action id: %" "l" "u" ".", aContext , aActionId); } } while (0); |
5249 | return; |
5250 | } |
5251 | if (mActiveBrowsingContextInContent == aContext) { |
5252 | mActiveBrowsingContextInContent = nullptr; |
5253 | mActionIdForActiveBrowsingContextInContent = aActionId; |
5254 | MaybeUnlockPointer(nullptr); |
5255 | } else { |
5256 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to unset the active BrowsingContext [%p] from " "another process. actionid: %" "l" "u", aContext, aActionId) ; } } while (0) |
5257 | ("Ignored an attempt to unset the active BrowsingContext [%p] from "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to unset the active BrowsingContext [%p] from " "another process. actionid: %" "l" "u", aContext, aActionId) ; } } while (0) |
5258 | "another process. actionid: %" PRIu64,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to unset the active BrowsingContext [%p] from " "another process. actionid: %" "l" "u", aContext, aActionId) ; } } while (0) |
5259 | aContext, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to unset the active BrowsingContext [%p] from " "another process. actionid: %" "l" "u", aContext, aActionId) ; } } while (0); |
5260 | } |
5261 | } |
5262 | |
5263 | void nsFocusManager::ReviseActiveBrowsingContext( |
5264 | uint64_t aOldActionId, mozilla::dom::BrowsingContext* aContext, |
5265 | uint64_t aNewActionId) { |
5266 | MOZ_ASSERT(XRE_IsContentProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(XRE_IsContentProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(XRE_IsContentProcess()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("XRE_IsContentProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5266); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsContentProcess()" ")"); do { *((volatile int*)__null) = 5266; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5267 | if (mActionIdForActiveBrowsingContextInContent == aOldActionId) { |
5268 | LOGFOCUS(("Revising the active BrowsingContext [%p]. old actionid: %" PRIu64do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Revising the active BrowsingContext [%p]. old actionid: %" "l" "u" ", new " "actionid: %" "l" "u", aContext, aOldActionId , aNewActionId); } } while (0) |
5269 | ", new "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Revising the active BrowsingContext [%p]. old actionid: %" "l" "u" ", new " "actionid: %" "l" "u", aContext, aOldActionId , aNewActionId); } } while (0) |
5270 | "actionid: %" PRIu64,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Revising the active BrowsingContext [%p]. old actionid: %" "l" "u" ", new " "actionid: %" "l" "u", aContext, aOldActionId , aNewActionId); } } while (0) |
5271 | aContext, aOldActionId, aNewActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Revising the active BrowsingContext [%p]. old actionid: %" "l" "u" ", new " "actionid: %" "l" "u", aContext, aOldActionId , aNewActionId); } } while (0); |
5272 | mActiveBrowsingContextInContent = aContext; |
5273 | mActionIdForActiveBrowsingContextInContent = aNewActionId; |
5274 | } else { |
5275 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored a stale attempt to revise the active BrowsingContext [%p]. " "old actionid: %" "l" "u" ", new actionid: %" "l" "u", aContext , aOldActionId, aNewActionId); } } while (0) |
5276 | ("Ignored a stale attempt to revise the active BrowsingContext [%p]. "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored a stale attempt to revise the active BrowsingContext [%p]. " "old actionid: %" "l" "u" ", new actionid: %" "l" "u", aContext , aOldActionId, aNewActionId); } } while (0) |
5277 | "old actionid: %" PRIu64 ", new actionid: %" PRIu64,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored a stale attempt to revise the active BrowsingContext [%p]. " "old actionid: %" "l" "u" ", new actionid: %" "l" "u", aContext , aOldActionId, aNewActionId); } } while (0) |
5278 | aContext, aOldActionId, aNewActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored a stale attempt to revise the active BrowsingContext [%p]. " "old actionid: %" "l" "u" ", new actionid: %" "l" "u", aContext , aOldActionId, aNewActionId); } } while (0); |
5279 | } |
5280 | } |
5281 | |
5282 | void nsFocusManager::ReviseFocusedBrowsingContext( |
5283 | uint64_t aOldActionId, mozilla::dom::BrowsingContext* aContext, |
5284 | uint64_t aNewActionId) { |
5285 | MOZ_ASSERT(XRE_IsContentProcess())do { static_assert( mozilla::detail::AssertionConditionType< decltype(XRE_IsContentProcess())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(XRE_IsContentProcess()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("XRE_IsContentProcess()" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5285); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsContentProcess()" ")"); do { *((volatile int*)__null) = 5285; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5286 | if (mActionIdForFocusedBrowsingContextInContent == aOldActionId) { |
5287 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Revising the focused BrowsingContext [%p]. old actionid: %" "l" "u" ", new " "actionid: %" "l" "u", aContext, aOldActionId , aNewActionId); } } while (0) |
5288 | ("Revising the focused BrowsingContext [%p]. old actionid: %" PRIu64do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Revising the focused BrowsingContext [%p]. old actionid: %" "l" "u" ", new " "actionid: %" "l" "u", aContext, aOldActionId , aNewActionId); } } while (0) |
5289 | ", new "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Revising the focused BrowsingContext [%p]. old actionid: %" "l" "u" ", new " "actionid: %" "l" "u", aContext, aOldActionId , aNewActionId); } } while (0) |
5290 | "actionid: %" PRIu64,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Revising the focused BrowsingContext [%p]. old actionid: %" "l" "u" ", new " "actionid: %" "l" "u", aContext, aOldActionId , aNewActionId); } } while (0) |
5291 | aContext, aOldActionId, aNewActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Revising the focused BrowsingContext [%p]. old actionid: %" "l" "u" ", new " "actionid: %" "l" "u", aContext, aOldActionId , aNewActionId); } } while (0); |
5292 | mFocusedBrowsingContextInContent = aContext; |
5293 | mActionIdForFocusedBrowsingContextInContent = aNewActionId; |
5294 | mFocusedElement = nullptr; |
5295 | } else { |
5296 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored a stale attempt to revise the focused BrowsingContext [%p]. " "old actionid: %" "l" "u" ", new actionid: %" "l" "u", aContext , aOldActionId, aNewActionId); } } while (0) |
5297 | ("Ignored a stale attempt to revise the focused BrowsingContext [%p]. "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored a stale attempt to revise the focused BrowsingContext [%p]. " "old actionid: %" "l" "u" ", new actionid: %" "l" "u", aContext , aOldActionId, aNewActionId); } } while (0) |
5298 | "old actionid: %" PRIu64 ", new actionid: %" PRIu64,do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored a stale attempt to revise the focused BrowsingContext [%p]. " "old actionid: %" "l" "u" ", new actionid: %" "l" "u", aContext , aOldActionId, aNewActionId); } } while (0) |
5299 | aContext, aOldActionId, aNewActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored a stale attempt to revise the focused BrowsingContext [%p]. " "old actionid: %" "l" "u" ", new actionid: %" "l" "u", aContext , aOldActionId, aNewActionId); } } while (0); |
5300 | } |
5301 | } |
5302 | |
5303 | bool nsFocusManager::SetActiveBrowsingContextInChrome( |
5304 | mozilla::dom::BrowsingContext* aContext, uint64_t aActionId) { |
5305 | MOZ_ASSERT(aActionId)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aActionId)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aActionId))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aActionId", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5305); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActionId" ")" ); do { *((volatile int*)__null) = 5305; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5306 | if (ProcessPendingActiveBrowsingContextActionId(aActionId, aContext)) { |
5307 | MOZ_DIAGNOSTIC_ASSERT(!ActionIdComparableAndLower(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ActionIdComparableAndLower( aActionId, mActionIdForActiveBrowsingContextInChrome ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!ActionIdComparableAndLower( aActionId, mActionIdForActiveBrowsingContextInChrome )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ActionIdComparableAndLower( aActionId, mActionIdForActiveBrowsingContextInChrome)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5308); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForActiveBrowsingContextInChrome)" ")"); do { *((volatile int*)__null) = 5308; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
5308 | aActionId, mActionIdForActiveBrowsingContextInChrome))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ActionIdComparableAndLower( aActionId, mActionIdForActiveBrowsingContextInChrome ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!ActionIdComparableAndLower( aActionId, mActionIdForActiveBrowsingContextInChrome )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ActionIdComparableAndLower( aActionId, mActionIdForActiveBrowsingContextInChrome)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5308); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForActiveBrowsingContextInChrome)" ")"); do { *((volatile int*)__null) = 5308; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5309 | mActiveBrowsingContextInChrome = aContext; |
5310 | mActionIdForActiveBrowsingContextInChrome = aActionId; |
5311 | return true; |
5312 | } |
5313 | return false; |
5314 | } |
5315 | |
5316 | uint64_t nsFocusManager::GetActionIdForActiveBrowsingContextInChrome() const { |
5317 | return mActionIdForActiveBrowsingContextInChrome; |
5318 | } |
5319 | |
5320 | uint64_t nsFocusManager::GetActionIdForFocusedBrowsingContextInChrome() const { |
5321 | return mActionIdForFocusedBrowsingContextInChrome; |
5322 | } |
5323 | |
5324 | BrowsingContext* nsFocusManager::GetActiveBrowsingContextInChrome() { |
5325 | return mActiveBrowsingContextInChrome; |
5326 | } |
5327 | |
5328 | void nsFocusManager::InsertNewFocusActionId(uint64_t aActionId) { |
5329 | LOGFOCUS(("InsertNewFocusActionId %" PRIu64, aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "InsertNewFocusActionId %" "l" "u", aActionId); } } while (0); |
5330 | 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/base/nsFocusManager.cpp" , 5330); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5330; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5331 | MOZ_ASSERT(!mPendingActiveBrowsingContextActions.Contains(aActionId))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mPendingActiveBrowsingContextActions.Contains(aActionId ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!mPendingActiveBrowsingContextActions.Contains(aActionId )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!mPendingActiveBrowsingContextActions.Contains(aActionId)", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5331); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mPendingActiveBrowsingContextActions.Contains(aActionId)" ")"); do { *((volatile int*)__null) = 5331; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5332 | mPendingActiveBrowsingContextActions.AppendElement(aActionId); |
5333 | MOZ_ASSERT(!mPendingFocusedBrowsingContextActions.Contains(aActionId))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mPendingFocusedBrowsingContextActions.Contains(aActionId ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!mPendingFocusedBrowsingContextActions.Contains(aActionId )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!mPendingFocusedBrowsingContextActions.Contains(aActionId)" , "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5333); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mPendingFocusedBrowsingContextActions.Contains(aActionId)" ")"); do { *((volatile int*)__null) = 5333; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5334 | mPendingFocusedBrowsingContextActions.AppendElement(aActionId); |
5335 | } |
5336 | |
5337 | static void RemoveContentInitiatedActionsUntil( |
5338 | nsTArray<uint64_t>& aPendingActions, |
5339 | nsTArray<uint64_t>::index_type aUntil) { |
5340 | nsTArray<uint64_t>::index_type i = 0; |
5341 | while (i < aUntil) { |
5342 | auto [actionProc, actionId] = |
5343 | nsContentUtils::SplitProcessSpecificId(aPendingActions[i]); |
5344 | Unused << actionId; |
5345 | if (actionProc) { |
5346 | aPendingActions.RemoveElementAt(i); |
5347 | --aUntil; |
5348 | continue; |
5349 | } |
5350 | ++i; |
5351 | } |
5352 | } |
5353 | |
5354 | bool nsFocusManager::ProcessPendingActiveBrowsingContextActionId( |
5355 | uint64_t aActionId, bool aSettingToNonNull) { |
5356 | 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/base/nsFocusManager.cpp" , 5356); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5356; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5357 | auto index = mPendingActiveBrowsingContextActions.IndexOf(aActionId); |
5358 | if (index == nsTArray<uint64_t>::NoIndex) { |
5359 | return false; |
5360 | } |
5361 | // When aSettingToNonNull is true, we need to remove one more |
5362 | // element to remove the action id itself in addition to |
5363 | // removing the older ones. |
5364 | if (aSettingToNonNull) { |
5365 | index++; |
5366 | } |
5367 | auto [actionProc, actionId] = |
5368 | nsContentUtils::SplitProcessSpecificId(aActionId); |
5369 | Unused << actionId; |
5370 | if (actionProc) { |
5371 | // Action from content: We allow parent-initiated actions |
5372 | // to take precedence over content-initiated ones, so we |
5373 | // remove only prior content-initiated actions. |
5374 | RemoveContentInitiatedActionsUntil(mPendingActiveBrowsingContextActions, |
5375 | index); |
5376 | } else { |
5377 | // Action from chrome |
5378 | mPendingActiveBrowsingContextActions.RemoveElementsAt(0, index); |
5379 | } |
5380 | return true; |
5381 | } |
5382 | |
5383 | bool nsFocusManager::ProcessPendingFocusedBrowsingContextActionId( |
5384 | uint64_t aActionId) { |
5385 | 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/base/nsFocusManager.cpp" , 5385); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5385; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5386 | auto index = mPendingFocusedBrowsingContextActions.IndexOf(aActionId); |
5387 | if (index == nsTArray<uint64_t>::NoIndex) { |
5388 | return false; |
5389 | } |
5390 | |
5391 | auto [actionProc, actionId] = |
5392 | nsContentUtils::SplitProcessSpecificId(aActionId); |
5393 | Unused << actionId; |
5394 | if (actionProc) { |
5395 | // Action from content: We allow parent-initiated actions |
5396 | // to take precedence over content-initiated ones, so we |
5397 | // remove only prior content-initiated actions. |
5398 | RemoveContentInitiatedActionsUntil(mPendingFocusedBrowsingContextActions, |
5399 | index); |
5400 | } else { |
5401 | // Action from chrome |
5402 | mPendingFocusedBrowsingContextActions.RemoveElementsAt(0, index); |
5403 | } |
5404 | return true; |
5405 | } |
5406 | |
5407 | // static |
5408 | uint64_t nsFocusManager::GenerateFocusActionId() { |
5409 | uint64_t id = |
5410 | nsContentUtils::GenerateProcessSpecificId(++sFocusActionCounter); |
5411 | if (XRE_IsParentProcess()) { |
5412 | nsFocusManager* fm = GetFocusManager(); |
5413 | if (fm) { |
5414 | fm->InsertNewFocusActionId(id); |
5415 | } |
5416 | } else { |
5417 | mozilla::dom::ContentChild* contentChild = |
5418 | mozilla::dom::ContentChild::GetSingleton(); |
5419 | MOZ_ASSERT(contentChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("contentChild", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5419); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 5419; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5420 | contentChild->SendInsertNewFocusActionId(id); |
5421 | } |
5422 | LOGFOCUS(("GenerateFocusActionId %" PRIu64, id))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "GenerateFocusActionId %" "l" "u", id); } } while (0); |
5423 | return id; |
5424 | } |
5425 | |
5426 | static bool IsInPointerLockContext(nsPIDOMWindowOuter* aWin) { |
5427 | return PointerLockManager::IsInLockContext(aWin ? aWin->GetBrowsingContext() |
5428 | : nullptr); |
5429 | } |
5430 | |
5431 | void nsFocusManager::SetFocusedWindowInternal(nsPIDOMWindowOuter* aWindow, |
5432 | uint64_t aActionId, |
5433 | bool aSyncBrowsingContext) { |
5434 | if (XRE_IsParentProcess() && !PointerUnlocker::sActiveUnlocker && |
5435 | IsInPointerLockContext(mFocusedWindow) && |
5436 | !IsInPointerLockContext(aWindow)) { |
5437 | nsCOMPtr<nsIRunnable> runnable = new PointerUnlocker(); |
5438 | NS_DispatchToCurrentThread(runnable); |
5439 | } |
5440 | |
5441 | // Update the last focus time on any affected documents |
5442 | if (aWindow && aWindow != mFocusedWindow) { |
5443 | const TimeStamp now(TimeStamp::Now()); |
5444 | for (Document* doc = aWindow->GetExtantDoc(); doc; |
5445 | doc = doc->GetInProcessParentDocument()) { |
5446 | doc->SetLastFocusTime(now); |
5447 | } |
5448 | } |
5449 | |
5450 | // This function may be called with zero action id to indicate that the |
5451 | // action id should be ignored. |
5452 | if (XRE_IsContentProcess() && aActionId && |
5453 | ActionIdComparableAndLower(aActionId, |
5454 | mActionIdForFocusedBrowsingContextInContent)) { |
5455 | // Unclear if this ever happens. |
5456 | LOGFOCUS(do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext as " "focused due to stale action id %" "l" "u" ".", aActionId); } } while (0) |
5457 | ("Ignored an attempt to set an in-process BrowsingContext as "do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext as " "focused due to stale action id %" "l" "u" ".", aActionId); } } while (0) |
5458 | "focused due to stale action id %" PRIu64 ".",do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext as " "focused due to stale action id %" "l" "u" ".", aActionId); } } while (0) |
5459 | aActionId))do { const ::mozilla::LogModule* moz_real_module = gFocusLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , mozilla::LogLevel::Debug)), 0))) { mozilla::detail::log_print (moz_real_module, mozilla::LogLevel::Debug, "Ignored an attempt to set an in-process BrowsingContext as " "focused due to stale action id %" "l" "u" ".", aActionId); } } while (0); |
5460 | return; |
5461 | } |
5462 | |
5463 | mFocusedWindow = aWindow; |
5464 | BrowsingContext* bc = aWindow ? aWindow->GetBrowsingContext() : nullptr; |
5465 | if (aSyncBrowsingContext) { |
5466 | MOZ_ASSERT(aActionId,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aActionId)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aActionId))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aActionId" " (" "aActionId must not be zero if aSyncBrowsingContext is true" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5467); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActionId" ") (" "aActionId must not be zero if aSyncBrowsingContext is true" ")"); do { *((volatile int*)__null) = 5467; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
5467 | "aActionId must not be zero if aSyncBrowsingContext is true")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aActionId)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aActionId))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aActionId" " (" "aActionId must not be zero if aSyncBrowsingContext is true" ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5467); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActionId" ") (" "aActionId must not be zero if aSyncBrowsingContext is true" ")"); do { *((volatile int*)__null) = 5467; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5468 | SetFocusedBrowsingContext(bc, aActionId); |
5469 | } else if (XRE_IsContentProcess()) { |
5470 | MOZ_ASSERT(mFocusedBrowsingContextInContent == bc,do { static_assert( mozilla::detail::AssertionConditionType< decltype(mFocusedBrowsingContextInContent == bc)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(mFocusedBrowsingContextInContent == bc))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mFocusedBrowsingContextInContent == bc" " (" "Not syncing BrowsingContext even when different." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5471); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mFocusedBrowsingContextInContent == bc" ") (" "Not syncing BrowsingContext even when different." ")" ); do { *((volatile int*)__null) = 5471; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
5471 | "Not syncing BrowsingContext even when different.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mFocusedBrowsingContextInContent == bc)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(mFocusedBrowsingContextInContent == bc))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mFocusedBrowsingContextInContent == bc" " (" "Not syncing BrowsingContext even when different." ")", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5471); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mFocusedBrowsingContextInContent == bc" ") (" "Not syncing BrowsingContext even when different." ")" ); do { *((volatile int*)__null) = 5471; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5472 | } |
5473 | } |
5474 | |
5475 | void nsFocusManager::NotifyOfReFocus(Element& aElement) { |
5476 | nsPIDOMWindowOuter* window = GetCurrentWindow(&aElement); |
5477 | if (!window || window != mFocusedWindow) { |
5478 | return; |
5479 | } |
5480 | if (!aElement.IsInComposedDoc() || IsNonFocusableRoot(&aElement)) { |
5481 | return; |
5482 | } |
5483 | nsIDocShell* docShell = window->GetDocShell(); |
5484 | if (!docShell) { |
5485 | return; |
5486 | } |
5487 | RefPtr<PresShell> presShell = docShell->GetPresShell(); |
5488 | if (!presShell) { |
5489 | return; |
5490 | } |
5491 | RefPtr<nsPresContext> presContext = presShell->GetPresContext(); |
5492 | if (!presContext) { |
5493 | return; |
5494 | } |
5495 | IMEStateManager::OnReFocus(*presContext, aElement); |
5496 | } |
5497 | |
5498 | void nsFocusManager::MarkUncollectableForCCGeneration(uint32_t aGeneration) { |
5499 | if (!sInstance) { |
5500 | return; |
5501 | } |
5502 | |
5503 | if (sInstance->mActiveWindow) { |
5504 | sInstance->mActiveWindow->MarkUncollectableForCCGeneration(aGeneration); |
5505 | } |
5506 | if (sInstance->mFocusedWindow) { |
5507 | sInstance->mFocusedWindow->MarkUncollectableForCCGeneration(aGeneration); |
5508 | } |
5509 | if (sInstance->mWindowBeingLowered) { |
5510 | sInstance->mWindowBeingLowered->MarkUncollectableForCCGeneration( |
5511 | aGeneration); |
5512 | } |
5513 | if (sInstance->mFocusedElement) { |
5514 | sInstance->mFocusedElement->OwnerDoc()->MarkUncollectableForCCGeneration( |
5515 | aGeneration); |
5516 | } |
5517 | if (sInstance->mFirstBlurEvent) { |
5518 | sInstance->mFirstBlurEvent->OwnerDoc()->MarkUncollectableForCCGeneration( |
5519 | aGeneration); |
5520 | } |
5521 | if (sInstance->mFirstFocusEvent) { |
5522 | sInstance->mFirstFocusEvent->OwnerDoc()->MarkUncollectableForCCGeneration( |
5523 | aGeneration); |
5524 | } |
5525 | } |
5526 | |
5527 | bool nsFocusManager::CanSkipFocus(nsIContent* aContent) { |
5528 | if (!aContent) { |
5529 | return false; |
5530 | } |
5531 | |
5532 | if (mFocusedElement == aContent) { |
5533 | return true; |
5534 | } |
5535 | |
5536 | nsIDocShell* ds = aContent->OwnerDoc()->GetDocShell(); |
5537 | if (!ds) { |
5538 | return true; |
5539 | } |
5540 | |
5541 | if (XRE_IsParentProcess()) { |
5542 | nsCOMPtr<nsIDocShellTreeItem> root; |
5543 | ds->GetInProcessRootTreeItem(getter_AddRefs(root)); |
5544 | nsCOMPtr<nsPIDOMWindowOuter> newRootWindow = |
5545 | root ? root->GetWindow() : nullptr; |
5546 | if (mActiveWindow != newRootWindow) { |
5547 | nsPIDOMWindowOuter* outerWindow = aContent->OwnerDoc()->GetWindow(); |
5548 | if (outerWindow && outerWindow->GetFocusedElement() == aContent) { |
5549 | return true; |
5550 | } |
5551 | } |
5552 | } else { |
5553 | BrowsingContext* bc = aContent->OwnerDoc()->GetBrowsingContext(); |
5554 | BrowsingContext* top = bc ? bc->Top() : nullptr; |
5555 | if (GetActiveBrowsingContext() != top) { |
5556 | nsPIDOMWindowOuter* outerWindow = aContent->OwnerDoc()->GetWindow(); |
5557 | if (outerWindow && outerWindow->GetFocusedElement() == aContent) { |
5558 | return true; |
5559 | } |
5560 | } |
5561 | } |
5562 | |
5563 | return false; |
5564 | } |
5565 | |
5566 | static IsFocusableFlags FocusManagerFlagsToIsFocusableFlags(uint32_t aFlags) { |
5567 | auto flags = IsFocusableFlags(0); |
5568 | if (aFlags & nsIFocusManager::FLAG_BYMOUSE) { |
5569 | flags |= IsFocusableFlags::WithMouse; |
5570 | } |
5571 | return flags; |
5572 | } |
5573 | |
5574 | /* static */ |
5575 | Element* nsFocusManager::GetTheFocusableArea(Element* aTarget, |
5576 | uint32_t aFlags) { |
5577 | MOZ_ASSERT(aTarget)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aTarget)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aTarget))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aTarget", "/var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp" , 5577); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aTarget" ")" ); do { *((volatile int*)__null) = 5577; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
5578 | nsIFrame* frame = aTarget->GetPrimaryFrame(); |
5579 | if (!frame) { |
5580 | return nullptr; |
5581 | } |
5582 | |
5583 | // If focus target is the document element of its Document. |
5584 | if (aTarget == aTarget->OwnerDoc()->GetRootElement()) { |
5585 | // the root content can always be focused, |
5586 | // except in userfocusignored context. |
5587 | return aTarget; |
5588 | } |
5589 | |
5590 | // If focus target is an area element with one or more shapes that are |
5591 | // focusable areas. |
5592 | if (auto* area = HTMLAreaElement::FromNode(aTarget)) { |
5593 | return IsAreaElementFocusable(*area) ? area : nullptr; |
5594 | } |
5595 | |
5596 | // For these 3 steps mentioned in the spec |
5597 | // 1. If focus target is an element with one or more scrollable regions that |
5598 | // are focusable areas |
5599 | // 2. If focus target is a navigable |
5600 | // 3. If focus target is a navigable container with a non-null content |
5601 | // navigable |
5602 | // nsIFrame::IsFocusable will effectively perform the checks for them. |
5603 | IsFocusableFlags flags = FocusManagerFlagsToIsFocusableFlags(aFlags); |
5604 | if (frame->IsFocusable(flags)) { |
5605 | return aTarget; |
5606 | } |
5607 | |
5608 | // If focus target is a shadow host whose shadow root's delegates focus is |
5609 | // true |
5610 | if (ShadowRoot* root = aTarget->GetShadowRoot()) { |
5611 | if (root->DelegatesFocus()) { |
5612 | // If focus target is a shadow-including inclusive ancestor of the |
5613 | // currently focused area of a top-level browsing context's DOM anchor, |
5614 | // then return the already-focused element. |
5615 | if (nsPIDOMWindowInner* innerWindow = |
5616 | aTarget->OwnerDoc()->GetInnerWindow()) { |
5617 | if (Element* focusedElement = innerWindow->GetFocusedElement()) { |
5618 | if (focusedElement->IsShadowIncludingInclusiveDescendantOf(aTarget)) { |
5619 | return focusedElement; |
5620 | } |
5621 | } |
5622 | } |
5623 | |
5624 | if (Element* firstFocusable = root->GetFocusDelegate(flags)) { |
5625 | return firstFocusable; |
5626 | } |
5627 | } |
5628 | } |
5629 | return nullptr; |
5630 | } |
5631 | |
5632 | /* static */ |
5633 | bool nsFocusManager::IsAreaElementFocusable(HTMLAreaElement& aArea) { |
5634 | nsIFrame* frame = aArea.GetPrimaryFrame(); |
5635 | if (!frame) { |
5636 | return false; |
5637 | } |
5638 | // HTML areas do not have their own frame, and the img frame we get from |
5639 | // GetPrimaryFrame() is not relevant as to whether it is focusable or |
5640 | // not, so we have to do all the relevant checks manually for them. |
5641 | return frame->IsVisibleConsideringAncestors() && |
5642 | aArea.IsFocusableWithoutStyle(); |
5643 | } |
5644 | |
5645 | nsresult NS_NewFocusManager(nsIFocusManager** aResult) { |
5646 | NS_IF_ADDREF(*aResult = nsFocusManager::GetFocusManager())ns_if_addref(*aResult = nsFocusManager::GetFocusManager()); |
5647 | return NS_OK; |
5648 | } |