| File: | var/lib/jenkins/workspace/firefox-scan-build/dom/base/nsFocusManager.cpp |
| Warning: | line 3345, 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 "nsThreadUtils.h" |
| 30 | #include "nsViewManager.h" |
| 31 | #include "nsFrameSelection.h" |
| 32 | #include "mozilla/dom/Selection.h" |
| 33 | #include "nsXULPopupManager.h" |
| 34 | #include "nsMenuPopupFrame.h" |
| 35 | #include "nsIScriptError.h" |
| 36 | #include "nsIScriptObjectPrincipal.h" |
| 37 | #include "nsIPrincipal.h" |
| 38 | #include "nsIObserverService.h" |
| 39 | #include "BrowserChild.h" |
| 40 | #include "nsFrameLoader.h" |
| 41 | #include "nsHTMLDocument.h" |
| 42 | #include "nsNetUtil.h" |
| 43 | #include "nsRange.h" |
| 44 | #include "nsFrameLoaderOwner.h" |
| 45 | #include "nsQueryObject.h" |
| 46 | #include "nsIXULRuntime.h" |
| 47 | |
| 48 | #include "mozilla/AccessibleCaretEventHub.h" |
| 49 | #include "mozilla/ContentEvents.h" |
| 50 | #include "mozilla/FocusModel.h" |
| 51 | #include "mozilla/dom/ContentChild.h" |
| 52 | #include "mozilla/dom/Document.h" |
| 53 | #include "mozilla/dom/DocumentInlines.h" |
| 54 | #include "mozilla/dom/Element.h" |
| 55 | #include "mozilla/dom/ElementBinding.h" |
| 56 | #include "mozilla/dom/HTMLImageElement.h" |
| 57 | #include "mozilla/dom/HTMLInputElement.h" |
| 58 | #include "mozilla/dom/HTMLSlotElement.h" |
| 59 | #include "mozilla/dom/HTMLAreaElement.h" |
| 60 | #include "mozilla/dom/BrowserBridgeChild.h" |
| 61 | #include "mozilla/dom/Text.h" |
| 62 | #include "mozilla/dom/XULPopupElement.h" |
| 63 | #include "mozilla/dom/WindowGlobalParent.h" |
| 64 | #include "mozilla/dom/WindowGlobalChild.h" |
| 65 | #include "mozilla/EventDispatcher.h" |
| 66 | #include "mozilla/EventStateManager.h" |
| 67 | #include "mozilla/HTMLEditor.h" |
| 68 | #include "mozilla/IMEStateManager.h" |
| 69 | #include "mozilla/LookAndFeel.h" |
| 70 | #include "mozilla/Maybe.h" |
| 71 | #include "mozilla/PointerLockManager.h" |
| 72 | #include "mozilla/Preferences.h" |
| 73 | #include "mozilla/PresShell.h" |
| 74 | #include "mozilla/Services.h" |
| 75 | #include "mozilla/Unused.h" |
| 76 | #include "mozilla/StaticPrefs_full_screen_api.h" |
| 77 | #include "mozilla/Try.h" |
| 78 | #include "mozilla/widget/IMEData.h" |
| 79 | #include <algorithm> |
| 80 | |
| 81 | #include "nsIDOMXULMenuListElement.h" |
| 82 | |
| 83 | #ifdef ACCESSIBILITY1 |
| 84 | # include "nsAccessibilityService.h" |
| 85 | #endif |
| 86 | |
| 87 | using namespace mozilla; |
| 88 | using namespace mozilla::dom; |
| 89 | using namespace mozilla::widget; |
| 90 | |
| 91 | // Two types of focus pr logging are available: |
| 92 | // 'Focus' for normal focus manager calls |
| 93 | // 'FocusNavigation' for tab and document navigation |
| 94 | LazyLogModule gFocusLog("Focus"); |
| 95 | LazyLogModule gFocusNavigationLog("FocusNavigation"); |
| 96 | |
| 97 | #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) |
| 98 | #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) \ |
| 99 | 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) |
| 100 | |
| 101 | #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); } \ |
| 102 | if (MOZ_LOG_TEST(log, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(log, LogLevel:: Debug)), 0))) { \ |
| 103 | nsAutoCString tag("(none)"_ns); \ |
| 104 | if (content) { \ |
| 105 | content->NodeInfo()->NameAtom()->ToUTF8String(tag); \ |
| 106 | } \ |
| 107 | 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); \ |
| 108 | } |
| 109 | |
| 110 | #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); } |
| 111 | #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); } \ |
| 112 | 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); } |
| 113 | |
| 114 | struct nsDelayedBlurOrFocusEvent { |
| 115 | nsDelayedBlurOrFocusEvent(EventMessage aEventMessage, PresShell* aPresShell, |
| 116 | Document* aDocument, EventTarget* aTarget, |
| 117 | EventTarget* aRelatedTarget) |
| 118 | : mPresShell(aPresShell), |
| 119 | mDocument(aDocument), |
| 120 | mTarget(aTarget), |
| 121 | mEventMessage(aEventMessage), |
| 122 | mRelatedTarget(aRelatedTarget) {} |
| 123 | |
| 124 | nsDelayedBlurOrFocusEvent(const nsDelayedBlurOrFocusEvent& aOther) |
| 125 | : mPresShell(aOther.mPresShell), |
| 126 | mDocument(aOther.mDocument), |
| 127 | mTarget(aOther.mTarget), |
| 128 | mEventMessage(aOther.mEventMessage) {} |
| 129 | |
| 130 | RefPtr<PresShell> mPresShell; |
| 131 | nsCOMPtr<Document> mDocument; |
| 132 | nsCOMPtr<EventTarget> mTarget; |
| 133 | EventMessage mEventMessage; |
| 134 | nsCOMPtr<EventTarget> mRelatedTarget; |
| 135 | }; |
| 136 | |
| 137 | inline void ImplCycleCollectionUnlink(nsDelayedBlurOrFocusEvent& aField) { |
| 138 | aField.mPresShell = nullptr; |
| 139 | aField.mDocument = nullptr; |
| 140 | aField.mTarget = nullptr; |
| 141 | aField.mRelatedTarget = nullptr; |
| 142 | } |
| 143 | |
| 144 | inline void ImplCycleCollectionTraverse( |
| 145 | nsCycleCollectionTraversalCallback& aCallback, |
| 146 | nsDelayedBlurOrFocusEvent& aField, const char* aName, uint32_t aFlags = 0) { |
| 147 | CycleCollectionNoteChild( |
| 148 | aCallback, static_cast<nsIDocumentObserver*>(aField.mPresShell.get()), |
| 149 | aName, aFlags); |
| 150 | CycleCollectionNoteChild(aCallback, aField.mDocument.get(), aName, aFlags); |
| 151 | CycleCollectionNoteChild(aCallback, aField.mTarget.get(), aName, aFlags); |
| 152 | CycleCollectionNoteChild(aCallback, aField.mRelatedTarget.get(), aName, |
| 153 | aFlags); |
| 154 | } |
| 155 | |
| 156 | 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" , 156); 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 |
| 157 | NS_INTERFACE_MAP_ENTRY(nsIFocusManager)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIFocusManager>)) foundInterface = static_cast<nsIFocusManager*>(this); else |
| 158 | NS_INTERFACE_MAP_ENTRY(nsIObserver)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsIObserver>)) foundInterface = static_cast <nsIObserver*>(this); else |
| 159 | NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)if (aIID.Equals(mozilla::detail::kImplementedIID<std::remove_reference_t <decltype(*this)>, nsISupportsWeakReference>)) foundInterface = static_cast<nsISupportsWeakReference*>(this); else |
| 160 | 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 |
| 161 | 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" , 161); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aIID.Equals((nsISupports::COMTypeInfo<nsISupports, void>::kIID))" ")"); do { *((volatile int*)__null) = 161; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); status = NS_NOINTERFACE ; } else { (foundInterface)->AddRef(); status = NS_OK; } * aInstancePtr = foundInterface; return status; } |
| 162 | |
| 163 | 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" , 163); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) >= 0" ") (" "illegal refcnt" ")"); do { *((volatile int*)__null) = 163; __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; } |
| 164 | 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" , 164); AnnotateMozCrashReason("MOZ_ASSERT" "(" "int32_t(mRefCnt) > 0" ") (" "dup release" ")"); do { *((volatile int*)__null) = 164 ; __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); } |
| 165 | |
| 166 | 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; } |
| 167 | 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; } |
| 168 | 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; } |
| 169 | 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; } |
| 170 | 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; } |
| 171 | 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; } |
| 172 | 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; } |
| 173 | |
| 174 | StaticRefPtr<nsFocusManager> nsFocusManager::sInstance; |
| 175 | bool nsFocusManager::sTestMode = false; |
| 176 | uint64_t nsFocusManager::sFocusActionCounter = 0; |
| 177 | |
| 178 | static const char* kObservedPrefs[] = {"accessibility.browsewithcaret", |
| 179 | "focusmanager.testmode", nullptr}; |
| 180 | |
| 181 | nsFocusManager::nsFocusManager() |
| 182 | : mActionIdForActiveBrowsingContextInContent(0), |
| 183 | mActionIdForActiveBrowsingContextInChrome(0), |
| 184 | mActionIdForFocusedBrowsingContextInContent(0), |
| 185 | mActionIdForFocusedBrowsingContextInChrome(0), |
| 186 | mActiveBrowsingContextInContentSetFromOtherProcess(false), |
| 187 | mEventHandlingNeedsFlush(false) {} |
| 188 | |
| 189 | nsFocusManager::~nsFocusManager() { |
| 190 | Preferences::UnregisterCallbacks(nsFocusManager::PrefChanged, kObservedPrefs, |
| 191 | this); |
| 192 | |
| 193 | nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService(); |
| 194 | if (obs) { |
| 195 | obs->RemoveObserver(this, "xpcom-shutdown"); |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | // static |
| 200 | nsresult nsFocusManager::Init() { |
| 201 | sInstance = new nsFocusManager(); |
| 202 | |
| 203 | sTestMode = Preferences::GetBool("focusmanager.testmode", false); |
| 204 | |
| 205 | Preferences::RegisterCallbacks(nsFocusManager::PrefChanged, kObservedPrefs, |
| 206 | sInstance.get()); |
| 207 | |
| 208 | nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService(); |
| 209 | if (obs) { |
| 210 | obs->AddObserver(sInstance, "xpcom-shutdown", true); |
| 211 | } |
| 212 | |
| 213 | return NS_OK; |
| 214 | } |
| 215 | |
| 216 | // static |
| 217 | void nsFocusManager::Shutdown() { sInstance = nullptr; } |
| 218 | |
| 219 | // static |
| 220 | void nsFocusManager::PrefChanged(const char* aPref, void* aSelf) { |
| 221 | if (RefPtr<nsFocusManager> fm = static_cast<nsFocusManager*>(aSelf)) { |
| 222 | fm->PrefChanged(aPref); |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | void nsFocusManager::PrefChanged(const char* aPref) { |
| 227 | nsDependentCString pref(aPref); |
| 228 | if (pref.EqualsLiteral("accessibility.browsewithcaret")) { |
| 229 | UpdateCaretForCaretBrowsingMode(); |
| 230 | } else if (pref.EqualsLiteral("focusmanager.testmode")) { |
| 231 | sTestMode = Preferences::GetBool("focusmanager.testmode", false); |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | NS_IMETHODIMPnsresult |
| 236 | nsFocusManager::Observe(nsISupports* aSubject, const char* aTopic, |
| 237 | const char16_t* aData) { |
| 238 | if (!nsCRT::strcmp(aTopic, "xpcom-shutdown")) { |
| 239 | mActiveWindow = nullptr; |
| 240 | mActiveBrowsingContextInContent = nullptr; |
| 241 | mActionIdForActiveBrowsingContextInContent = 0; |
| 242 | mActionIdForFocusedBrowsingContextInContent = 0; |
| 243 | mActiveBrowsingContextInChrome = nullptr; |
| 244 | mActionIdForActiveBrowsingContextInChrome = 0; |
| 245 | mActionIdForFocusedBrowsingContextInChrome = 0; |
| 246 | mFocusedWindow = nullptr; |
| 247 | mFocusedBrowsingContextInContent = nullptr; |
| 248 | mFocusedBrowsingContextInChrome = nullptr; |
| 249 | mFocusedElement = nullptr; |
| 250 | mFirstBlurEvent = nullptr; |
| 251 | mFirstFocusEvent = nullptr; |
| 252 | mWindowBeingLowered = nullptr; |
| 253 | mDelayedBlurFocusEvents.Clear(); |
| 254 | } |
| 255 | |
| 256 | return NS_OK; |
| 257 | } |
| 258 | |
| 259 | static bool ActionIdComparableAndLower(uint64_t aActionId, |
| 260 | uint64_t aReference) { |
| 261 | 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" , 261); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActionId" ") (" "Uninitialized action id" ")"); do { *((volatile int*)__null ) = 261; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 262 | auto [actionProc, actionId] = |
| 263 | nsContentUtils::SplitProcessSpecificId(aActionId); |
| 264 | auto [refProc, refId] = nsContentUtils::SplitProcessSpecificId(aReference); |
| 265 | return actionProc == refProc && actionId < refId; |
| 266 | } |
| 267 | |
| 268 | // given a frame content node, retrieve the nsIDOMWindow displayed in it |
| 269 | static nsPIDOMWindowOuter* GetContentWindow(nsIContent* aContent) { |
| 270 | Document* doc = aContent->GetComposedDoc(); |
| 271 | if (doc) { |
| 272 | Document* subdoc = doc->GetSubDocumentFor(aContent); |
| 273 | if (subdoc) { |
| 274 | return subdoc->GetWindow(); |
| 275 | } |
| 276 | } |
| 277 | |
| 278 | return nullptr; |
| 279 | } |
| 280 | |
| 281 | bool nsFocusManager::IsFocused(nsIContent* aContent) { |
| 282 | if (!aContent || !mFocusedElement) { |
| 283 | return false; |
| 284 | } |
| 285 | return aContent == mFocusedElement; |
| 286 | } |
| 287 | |
| 288 | bool nsFocusManager::IsTestMode() { return sTestMode; } |
| 289 | |
| 290 | bool nsFocusManager::IsInActiveWindow(BrowsingContext* aBC) const { |
| 291 | RefPtr<BrowsingContext> top = aBC->Top(); |
| 292 | if (XRE_IsParentProcess()) { |
| 293 | top = top->Canonical()->TopCrossChromeBoundary(); |
| 294 | } |
| 295 | return IsSameOrAncestor(top, GetActiveBrowsingContext()); |
| 296 | } |
| 297 | |
| 298 | // get the current window for the given content node |
| 299 | static nsPIDOMWindowOuter* GetCurrentWindow(nsIContent* aContent) { |
| 300 | Document* doc = aContent->GetComposedDoc(); |
| 301 | return doc ? doc->GetWindow() : nullptr; |
| 302 | } |
| 303 | |
| 304 | // static |
| 305 | Element* nsFocusManager::GetFocusedDescendant( |
| 306 | nsPIDOMWindowOuter* aWindow, SearchRange aSearchRange, |
| 307 | nsPIDOMWindowOuter** aFocusedWindow) { |
| 308 | 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" , 308); return nullptr; } } while (false); |
| 309 | |
| 310 | *aFocusedWindow = nullptr; |
| 311 | |
| 312 | Element* currentElement = nullptr; |
| 313 | nsPIDOMWindowOuter* window = aWindow; |
| 314 | for (;;) { |
| 315 | *aFocusedWindow = window; |
| 316 | currentElement = window->GetFocusedElement(); |
| 317 | if (!currentElement || aSearchRange == eOnlyCurrentWindow) { |
| 318 | break; |
| 319 | } |
| 320 | |
| 321 | window = GetContentWindow(currentElement); |
| 322 | if (!window) { |
| 323 | break; |
| 324 | } |
| 325 | |
| 326 | if (aSearchRange == eIncludeAllDescendants) { |
| 327 | continue; |
| 328 | } |
| 329 | |
| 330 | 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" , 330); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aSearchRange == eIncludeVisibleDescendants" ")"); do { *((volatile int*)__null) = 330; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 331 | |
| 332 | // If the child window doesn't have PresShell, it means the window is |
| 333 | // invisible. |
| 334 | nsIDocShell* docShell = window->GetDocShell(); |
| 335 | if (!docShell) { |
| 336 | break; |
| 337 | } |
| 338 | if (!docShell->GetPresShell()) { |
| 339 | break; |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | NS_IF_ADDREF(*aFocusedWindow)ns_if_addref(*aFocusedWindow); |
| 344 | |
| 345 | return currentElement; |
| 346 | } |
| 347 | |
| 348 | // static |
| 349 | InputContextAction::Cause nsFocusManager::GetFocusMoveActionCause( |
| 350 | uint32_t aFlags) { |
| 351 | if (aFlags & nsIFocusManager::FLAG_BYTOUCH) { |
| 352 | return InputContextAction::CAUSE_TOUCH; |
| 353 | } else if (aFlags & nsIFocusManager::FLAG_BYMOUSE) { |
| 354 | return InputContextAction::CAUSE_MOUSE; |
| 355 | } else if (aFlags & nsIFocusManager::FLAG_BYKEY) { |
| 356 | return InputContextAction::CAUSE_KEY; |
| 357 | } else if (aFlags & nsIFocusManager::FLAG_BYLONGPRESS) { |
| 358 | return InputContextAction::CAUSE_LONGPRESS; |
| 359 | } |
| 360 | return InputContextAction::CAUSE_UNKNOWN; |
| 361 | } |
| 362 | |
| 363 | NS_IMETHODIMPnsresult |
| 364 | nsFocusManager::GetActiveWindow(mozIDOMWindowProxy** aWindow) { |
| 365 | 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" , 366); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ") (" "Must not be called outside the parent process." ")"); do { *((volatile int*)__null) = 366; __attribute__((nomerge) ) ::abort(); } while (false); } } while (false) |
| 366 | "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" , 366); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ") (" "Must not be called outside the parent process." ")"); do { *((volatile int*)__null) = 366; __attribute__((nomerge) ) ::abort(); } while (false); } } while (false); |
| 367 | NS_IF_ADDREF(*aWindow = mActiveWindow)ns_if_addref(*aWindow = mActiveWindow); |
| 368 | return NS_OK; |
| 369 | } |
| 370 | |
| 371 | NS_IMETHODIMPnsresult |
| 372 | nsFocusManager::GetActiveBrowsingContext(BrowsingContext** aBrowsingContext) { |
| 373 | NS_IF_ADDREF(*aBrowsingContext = GetActiveBrowsingContext())ns_if_addref(*aBrowsingContext = GetActiveBrowsingContext()); |
| 374 | return NS_OK; |
| 375 | } |
| 376 | |
| 377 | void nsFocusManager::FocusWindow(nsPIDOMWindowOuter* aWindow, |
| 378 | CallerType aCallerType) { |
| 379 | if (RefPtr<nsFocusManager> fm = sInstance) { |
| 380 | fm->SetFocusedWindowWithCallerType(aWindow, aCallerType); |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | NS_IMETHODIMPnsresult |
| 385 | nsFocusManager::GetFocusedWindow(mozIDOMWindowProxy** aFocusedWindow) { |
| 386 | NS_IF_ADDREF(*aFocusedWindow = mFocusedWindow)ns_if_addref(*aFocusedWindow = mFocusedWindow); |
| 387 | return NS_OK; |
| 388 | } |
| 389 | |
| 390 | NS_IMETHODIMPnsresult |
| 391 | nsFocusManager::GetFocusedContentBrowsingContext( |
| 392 | BrowsingContext** aBrowsingContext) { |
| 393 | 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" , 395); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "XRE_IsParentProcess()" ") (" "We only have use cases for this in the parent process" ")"); do { *((volatile int*)__null) = 395; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 394 | 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" , 395); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "XRE_IsParentProcess()" ") (" "We only have use cases for this in the parent process" ")"); do { *((volatile int*)__null) = 395; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 395 | "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" , 395); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "XRE_IsParentProcess()" ") (" "We only have use cases for this in the parent process" ")"); do { *((volatile int*)__null) = 395; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 396 | NS_IF_ADDREF(*aBrowsingContext = GetFocusedBrowsingContextInChrome())ns_if_addref(*aBrowsingContext = GetFocusedBrowsingContextInChrome ()); |
| 397 | return NS_OK; |
| 398 | } |
| 399 | |
| 400 | NS_IMETHODIMPnsresult |
| 401 | nsFocusManager::GetActiveContentBrowsingContext( |
| 402 | BrowsingContext** aBrowsingContext) { |
| 403 | 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" , 405); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "XRE_IsParentProcess()" ") (" "We only have use cases for this in the parent process" ")"); do { *((volatile int*)__null) = 405; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 404 | 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" , 405); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "XRE_IsParentProcess()" ") (" "We only have use cases for this in the parent process" ")"); do { *((volatile int*)__null) = 405; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 405 | "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" , 405); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "XRE_IsParentProcess()" ") (" "We only have use cases for this in the parent process" ")"); do { *((volatile int*)__null) = 405; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 406 | NS_IF_ADDREF(*aBrowsingContext = GetActiveBrowsingContextInChrome())ns_if_addref(*aBrowsingContext = GetActiveBrowsingContextInChrome ()); |
| 407 | return NS_OK; |
| 408 | } |
| 409 | |
| 410 | nsresult nsFocusManager::SetFocusedWindowWithCallerType( |
| 411 | mozIDOMWindowProxy* aWindowToFocus, CallerType aCallerType) { |
| 412 | 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); |
| 413 | |
| 414 | nsCOMPtr<nsPIDOMWindowOuter> windowToFocus = |
| 415 | nsPIDOMWindowOuter::From(aWindowToFocus); |
| 416 | 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" , 416); return NS_ERROR_FAILURE; } } while (false); |
| 417 | |
| 418 | nsCOMPtr<Element> frameElement = windowToFocus->GetFrameElementInternal(); |
| 419 | Maybe<uint64_t> existingActionId; |
| 420 | if (frameElement) { |
| 421 | // pass false for aFocusChanged so that the caret does not get updated |
| 422 | // and scrolling does not occur. |
| 423 | existingActionId = SetFocusInner(frameElement, 0, false, true); |
| 424 | } else if (auto* bc = windowToFocus->GetBrowsingContext(); |
| 425 | bc && !bc->IsTop()) { |
| 426 | // No frameElement means windowToFocus is an OOP iframe, so |
| 427 | // the above SetFocusInner is not called. That means the focus |
| 428 | // of the currently focused BC is not going to be cleared. So |
| 429 | // we do that manually here. |
| 430 | if (RefPtr<BrowsingContext> focusedBC = GetFocusedBrowsingContext()) { |
| 431 | // If focusedBC is an ancestor of bc, blur will be handled |
| 432 | // correctly by nsFocusManager::AdjustWindowFocus. |
| 433 | if (!IsSameOrAncestor(focusedBC, bc)) { |
| 434 | existingActionId.emplace(sInstance->GenerateFocusActionId()); |
| 435 | Blur(focusedBC, nullptr, true, true, false, existingActionId.value()); |
| 436 | } |
| 437 | } |
| 438 | } else { |
| 439 | // this is a top-level window. If the window has a child frame focused, |
| 440 | // clear the focus. Otherwise, focus should already be in this frame, or |
| 441 | // already cleared. This ensures that focus will be in this frame and not |
| 442 | // in a child. |
| 443 | nsIContent* content = windowToFocus->GetFocusedElement(); |
| 444 | if (content) { |
| 445 | if (nsCOMPtr<nsPIDOMWindowOuter> childWindow = GetContentWindow(content)) |
| 446 | ClearFocus(windowToFocus); |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | nsCOMPtr<nsPIDOMWindowOuter> rootWindow = windowToFocus->GetPrivateRoot(); |
| 451 | const uint64_t actionId = existingActionId.isSome() |
| 452 | ? existingActionId.value() |
| 453 | : sInstance->GenerateFocusActionId(); |
| 454 | if (rootWindow) { |
| 455 | RaiseWindow(rootWindow, aCallerType, actionId); |
| 456 | } |
| 457 | |
| 458 | 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); |
| 459 | |
| 460 | return NS_OK; |
| 461 | } |
| 462 | |
| 463 | NS_IMETHODIMPnsresult nsFocusManager::SetFocusedWindow( |
| 464 | mozIDOMWindowProxy* aWindowToFocus) { |
| 465 | return SetFocusedWindowWithCallerType(aWindowToFocus, CallerType::System); |
| 466 | } |
| 467 | |
| 468 | NS_IMETHODIMPnsresult |
| 469 | nsFocusManager::GetFocusedElement(Element** aFocusedElement) { |
| 470 | RefPtr<Element> focusedElement = mFocusedElement; |
| 471 | focusedElement.forget(aFocusedElement); |
| 472 | return NS_OK; |
| 473 | } |
| 474 | |
| 475 | uint32_t nsFocusManager::GetLastFocusMethod(nsPIDOMWindowOuter* aWindow) const { |
| 476 | nsPIDOMWindowOuter* window = aWindow ? aWindow : mFocusedWindow.get(); |
| 477 | uint32_t method = window ? window->GetFocusMethod() : 0; |
| 478 | 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" , 478); MOZ_PretendNoReturn(); } } while (0); |
| 479 | return method; |
| 480 | } |
| 481 | |
| 482 | NS_IMETHODIMPnsresult |
| 483 | nsFocusManager::GetLastFocusMethod(mozIDOMWindowProxy* aWindow, |
| 484 | uint32_t* aLastFocusMethod) { |
| 485 | *aLastFocusMethod = GetLastFocusMethod(nsPIDOMWindowOuter::From(aWindow)); |
| 486 | return NS_OK; |
| 487 | } |
| 488 | |
| 489 | NS_IMETHODIMPnsresult |
| 490 | nsFocusManager::SetFocus(Element* aElement, uint32_t aFlags) { |
| 491 | 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); |
| 492 | |
| 493 | 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" , 493); return NS_ERROR_INVALID_ARG; } } while (false); |
| 494 | |
| 495 | SetFocusInner(aElement, aFlags, true, true); |
| 496 | |
| 497 | 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); |
| 498 | |
| 499 | return NS_OK; |
| 500 | } |
| 501 | |
| 502 | NS_IMETHODIMPnsresult |
| 503 | nsFocusManager::ElementIsFocusable(Element* aElement, uint32_t aFlags, |
| 504 | bool* aIsFocusable) { |
| 505 | 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" , 505); return NS_ERROR_INVALID_ARG; } } while (false); |
| 506 | *aIsFocusable = !!FlushAndCheckIfFocusable(aElement, aFlags); |
| 507 | return NS_OK; |
| 508 | } |
| 509 | |
| 510 | MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHODIMPnsresult |
| 511 | nsFocusManager::MoveFocus(mozIDOMWindowProxy* aWindow, Element* aStartElement, |
| 512 | uint32_t aType, uint32_t aFlags, Element** aElement) { |
| 513 | *aElement = nullptr; |
| 514 | |
| 515 | 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); |
| 516 | |
| 517 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0)) && mFocusedWindow) { |
| 518 | Document* doc = mFocusedWindow->GetExtantDoc(); |
| 519 | if (doc && doc->GetDocumentURI()) { |
| 520 | 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) |
| 521 | 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); |
| 522 | } |
| 523 | } |
| 524 | |
| 525 | 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); }; |
| 526 | |
| 527 | // use FLAG_BYMOVEFOCUS when switching focus with MoveFocus unless one of |
| 528 | // the other focus methods is already set, or we're just moving to the root |
| 529 | // or caret position. |
| 530 | if (aType != MOVEFOCUS_ROOT && aType != MOVEFOCUS_CARET && |
| 531 | (aFlags & METHOD_MASK) == 0) { |
| 532 | aFlags |= FLAG_BYMOVEFOCUS; |
| 533 | } |
| 534 | |
| 535 | nsCOMPtr<nsPIDOMWindowOuter> window; |
| 536 | if (aStartElement) { |
| 537 | window = GetCurrentWindow(aStartElement); |
| 538 | } else { |
| 539 | window = aWindow ? nsPIDOMWindowOuter::From(aWindow) : mFocusedWindow.get(); |
| 540 | } |
| 541 | |
| 542 | 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" , 542); return NS_ERROR_FAILURE; } } while (false); |
| 543 | |
| 544 | // Flush to ensure that focusability of descendants is computed correctly. |
| 545 | if (RefPtr<Document> doc = window->GetExtantDoc()) { |
| 546 | doc->FlushPendingNotifications(FlushType::EnsurePresShellInitAndFrames); |
| 547 | } |
| 548 | |
| 549 | bool noParentTraversal = aFlags & FLAG_NOPARENTFRAME; |
| 550 | nsCOMPtr<nsIContent> newFocus; |
| 551 | nsresult rv = DetermineElementToMoveFocus(window, aStartElement, aType, |
| 552 | noParentTraversal, true, |
| 553 | getter_AddRefs(newFocus)); |
| 554 | if (rv == NS_SUCCESS_DOM_NO_OPERATION) { |
| 555 | return NS_OK; |
| 556 | } |
| 557 | |
| 558 | 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" , 558); return rv; } } while (false); |
| 559 | |
| 560 | 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); }; |
| 561 | |
| 562 | if (newFocus && newFocus->IsElement()) { |
| 563 | // for caret movement, pass false for the aFocusChanged argument, |
| 564 | // otherwise the caret will end up moving to the focus position. This |
| 565 | // would be a problem because the caret would move to the beginning of the |
| 566 | // focused link making it impossible to navigate the caret over a link. |
| 567 | SetFocusInner(MOZ_KnownLive(newFocus->AsElement())(newFocus->AsElement()), aFlags, |
| 568 | aType != MOVEFOCUS_CARET, true); |
| 569 | *aElement = do_AddRef(newFocus->AsElement()).take(); |
| 570 | } else if (aType == MOVEFOCUS_ROOT || aType == MOVEFOCUS_CARET) { |
| 571 | // no content was found, so clear the focus for these two types. |
| 572 | ClearFocus(window); |
| 573 | } |
| 574 | |
| 575 | 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); |
| 576 | |
| 577 | return NS_OK; |
| 578 | } |
| 579 | |
| 580 | NS_IMETHODIMPnsresult |
| 581 | nsFocusManager::ClearFocus(mozIDOMWindowProxy* aWindow) { |
| 582 | 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); |
| 583 | |
| 584 | // if the window to clear is the focused window or an ancestor of the |
| 585 | // focused window, then blur the existing focused content. Otherwise, the |
| 586 | // focus is somewhere else so just update the current node. |
| 587 | 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" , 587); return NS_ERROR_INVALID_ARG; } } while (false); |
| 588 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
| 589 | |
| 590 | if (IsSameOrAncestor(window, GetFocusedBrowsingContext())) { |
| 591 | RefPtr<BrowsingContext> bc = window->GetBrowsingContext(); |
| 592 | RefPtr<BrowsingContext> focusedBC = GetFocusedBrowsingContext(); |
| 593 | const bool isAncestor = (focusedBC != bc); |
| 594 | RefPtr<BrowsingContext> ancestorBC = isAncestor ? bc : nullptr; |
| 595 | if (Blur(focusedBC, ancestorBC, isAncestor, true, false, |
| 596 | GenerateFocusActionId())) { |
| 597 | // if we are clearing the focus on an ancestor of the focused window, |
| 598 | // the ancestor will become the new focused window, so focus it |
| 599 | if (isAncestor) { |
| 600 | // Intentionally use a new actionId here because the above |
| 601 | // Blur() will clear the focus of the ancestors of focusedBC, and |
| 602 | // this Focus() call might need to update the focus of those ancestors, |
| 603 | // so it needs to have a newer actionId to make that happen. |
| 604 | Focus(window, nullptr, 0, true, false, false, true, |
| 605 | GenerateFocusActionId()); |
| 606 | } |
| 607 | } |
| 608 | } else { |
| 609 | window->SetFocusedElement(nullptr); |
| 610 | } |
| 611 | |
| 612 | 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); |
| 613 | |
| 614 | return NS_OK; |
| 615 | } |
| 616 | |
| 617 | NS_IMETHODIMPnsresult |
| 618 | nsFocusManager::GetFocusedElementForWindow(mozIDOMWindowProxy* aWindow, |
| 619 | bool aDeep, |
| 620 | mozIDOMWindowProxy** aFocusedWindow, |
| 621 | Element** aElement) { |
| 622 | *aElement = nullptr; |
| 623 | if (aFocusedWindow) { |
| 624 | *aFocusedWindow = nullptr; |
| 625 | } |
| 626 | |
| 627 | 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" , 627); return NS_ERROR_INVALID_ARG; } } while (false); |
| 628 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
| 629 | |
| 630 | nsCOMPtr<nsPIDOMWindowOuter> focusedWindow; |
| 631 | RefPtr<Element> focusedElement = |
| 632 | GetFocusedDescendant(window, |
| 633 | aDeep ? nsFocusManager::eIncludeAllDescendants |
| 634 | : nsFocusManager::eOnlyCurrentWindow, |
| 635 | getter_AddRefs(focusedWindow)); |
| 636 | |
| 637 | focusedElement.forget(aElement); |
| 638 | |
| 639 | if (aFocusedWindow) { |
| 640 | NS_IF_ADDREF(*aFocusedWindow = focusedWindow)ns_if_addref(*aFocusedWindow = focusedWindow); |
| 641 | } |
| 642 | |
| 643 | return NS_OK; |
| 644 | } |
| 645 | |
| 646 | NS_IMETHODIMPnsresult |
| 647 | nsFocusManager::MoveCaretToFocus(mozIDOMWindowProxy* aWindow) { |
| 648 | nsCOMPtr<nsIWebNavigation> webnav = do_GetInterface(aWindow); |
| 649 | nsCOMPtr<nsIDocShellTreeItem> dsti = do_QueryInterface(webnav); |
| 650 | if (dsti) { |
| 651 | if (dsti->ItemType() != nsIDocShellTreeItem::typeChrome) { |
| 652 | nsCOMPtr<nsIDocShell> docShell = do_QueryInterface(dsti); |
| 653 | 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" , 653); return NS_ERROR_FAILURE; } } while (false); |
| 654 | |
| 655 | // don't move the caret for editable documents |
| 656 | bool isEditable; |
| 657 | docShell->GetEditable(&isEditable); |
| 658 | if (isEditable) { |
| 659 | return NS_OK; |
| 660 | } |
| 661 | |
| 662 | RefPtr<PresShell> presShell = docShell->GetPresShell(); |
| 663 | 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" , 663); return NS_ERROR_FAILURE; } } while (false); |
| 664 | |
| 665 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
| 666 | if (RefPtr<Element> focusedElement = window->GetFocusedElement()) { |
| 667 | MoveCaretToFocus(presShell, focusedElement); |
| 668 | } |
| 669 | } |
| 670 | } |
| 671 | |
| 672 | return NS_OK; |
| 673 | } |
| 674 | |
| 675 | void nsFocusManager::WindowRaised(mozIDOMWindowProxy* aWindow, |
| 676 | uint64_t aActionId) { |
| 677 | if (!aWindow) { |
| 678 | return; |
| 679 | } |
| 680 | |
| 681 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
| 682 | BrowsingContext* bc = window->GetBrowsingContext(); |
| 683 | |
| 684 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0))) { |
| 685 | 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) |
| 686 | 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); |
| 687 | Document* doc = window->GetExtantDoc(); |
| 688 | if (doc && doc->GetDocumentURI()) { |
| 689 | 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) |
| 690 | 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); |
| 691 | } |
| 692 | if (mActiveWindow) { |
| 693 | doc = mActiveWindow->GetExtantDoc(); |
| 694 | if (doc && doc->GetDocumentURI()) { |
| 695 | 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) |
| 696 | 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); |
| 697 | } |
| 698 | } |
| 699 | } |
| 700 | |
| 701 | if (XRE_IsParentProcess()) { |
| 702 | if (mActiveWindow == window) { |
| 703 | // The window is already active, so there is no need to focus anything, |
| 704 | // but make sure that the right widget is focused. This is a special case |
| 705 | // for Windows because when restoring a minimized window, a second |
| 706 | // activation will occur and the top-level widget could be focused instead |
| 707 | // of the child we want. We solve this by calling SetFocus to ensure that |
| 708 | // what the focus manager thinks should be the current widget is actually |
| 709 | // focused. |
| 710 | EnsureCurrentWidgetFocused(CallerType::System); |
| 711 | return; |
| 712 | } |
| 713 | |
| 714 | // lower the existing window, if any. This shouldn't happen usually. |
| 715 | if (nsCOMPtr<nsPIDOMWindowOuter> activeWindow = mActiveWindow) { |
| 716 | WindowLowered(activeWindow, aActionId); |
| 717 | } |
| 718 | } else if (bc->IsTop()) { |
| 719 | BrowsingContext* active = GetActiveBrowsingContext(); |
| 720 | if (active == bc && !mActiveBrowsingContextInContentSetFromOtherProcess) { |
| 721 | // EnsureCurrentWidgetFocused() should not be necessary with |
| 722 | // PuppetWidget. |
| 723 | return; |
| 724 | } |
| 725 | |
| 726 | if (active && active != bc) { |
| 727 | if (active->IsInProcess()) { |
| 728 | nsCOMPtr<nsPIDOMWindowOuter> activeWindow = active->GetDOMWindow(); |
| 729 | WindowLowered(activeWindow, aActionId); |
| 730 | } |
| 731 | // No else, because trying to lower other-process windows |
| 732 | // from here can result in the BrowsingContext no longer |
| 733 | // existing in the parent process by the time it deserializes |
| 734 | // the IPC message. |
| 735 | } |
| 736 | } |
| 737 | |
| 738 | nsCOMPtr<nsIDocShellTreeItem> docShellAsItem = window->GetDocShell(); |
| 739 | // If there's no docShellAsItem, this window must have been closed, |
| 740 | // in that case there is no tree owner. |
| 741 | if (!docShellAsItem) { |
| 742 | return; |
| 743 | } |
| 744 | |
| 745 | // set this as the active window |
| 746 | if (XRE_IsParentProcess()) { |
| 747 | mActiveWindow = window; |
| 748 | } else if (bc->IsTop()) { |
| 749 | SetActiveBrowsingContextInContent(bc, aActionId, |
| 750 | false /* aIsEnteringBFCache */); |
| 751 | } |
| 752 | |
| 753 | // ensure that the window is enabled and visible |
| 754 | nsCOMPtr<nsIDocShellTreeOwner> treeOwner; |
| 755 | docShellAsItem->GetTreeOwner(getter_AddRefs(treeOwner)); |
| 756 | nsCOMPtr<nsIBaseWindow> baseWindow = do_QueryInterface(treeOwner); |
| 757 | if (baseWindow) { |
| 758 | bool isEnabled = true; |
| 759 | if (NS_SUCCEEDED(baseWindow->GetEnabled(&isEnabled))((bool)(__builtin_expect(!!(!NS_FAILED_impl(baseWindow->GetEnabled (&isEnabled))), 1))) && !isEnabled) { |
| 760 | return; |
| 761 | } |
| 762 | |
| 763 | baseWindow->SetVisibility(true); |
| 764 | } |
| 765 | |
| 766 | if (XRE_IsParentProcess()) { |
| 767 | // Unsetting top-level focus upon lowering was inhibited to accommodate |
| 768 | // ATOK, so we need to do it here. |
| 769 | BrowserParent::UnsetTopLevelWebFocusAll(); |
| 770 | ActivateOrDeactivate(window, true); |
| 771 | } |
| 772 | |
| 773 | // retrieve the last focused element within the window that was raised |
| 774 | nsCOMPtr<nsPIDOMWindowOuter> currentWindow; |
| 775 | RefPtr<Element> currentFocus = GetFocusedDescendant( |
| 776 | window, eIncludeAllDescendants, getter_AddRefs(currentWindow)); |
| 777 | |
| 778 | 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" , 778); MOZ_PretendNoReturn(); } } while (0); |
| 779 | if (!currentWindow) { |
| 780 | return; |
| 781 | } |
| 782 | |
| 783 | nsCOMPtr<nsIAppWindow> appWin(do_GetInterface(baseWindow)); |
| 784 | // We use mFocusedWindow here is basically for the case that iframe navigate |
| 785 | // from a.com to b.com for example, so it ends up being loaded in a different |
| 786 | // process after Fission, but |
| 787 | // currentWindow->GetBrowsingContext() == GetFocusedBrowsingContext() would |
| 788 | // still be true because focused browsing context is synced, and we won't |
| 789 | // fire a focus event while focusing if we use it as condition. |
| 790 | Focus(currentWindow, currentFocus, 0, currentWindow != mFocusedWindow, false, |
| 791 | appWin != nullptr, true, aActionId); |
| 792 | } |
| 793 | |
| 794 | void nsFocusManager::WindowLowered(mozIDOMWindowProxy* aWindow, |
| 795 | uint64_t aActionId) { |
| 796 | if (!aWindow) { |
| 797 | return; |
| 798 | } |
| 799 | |
| 800 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
| 801 | |
| 802 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0))) { |
| 803 | 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) |
| 804 | 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); |
| 805 | Document* doc = window->GetExtantDoc(); |
| 806 | if (doc && doc->GetDocumentURI()) { |
| 807 | 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) |
| 808 | 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); |
| 809 | } |
| 810 | if (mActiveWindow) { |
| 811 | doc = mActiveWindow->GetExtantDoc(); |
| 812 | if (doc && doc->GetDocumentURI()) { |
| 813 | 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) |
| 814 | 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); |
| 815 | } |
| 816 | } |
| 817 | } |
| 818 | |
| 819 | if (XRE_IsParentProcess()) { |
| 820 | if (mActiveWindow != window) { |
| 821 | return; |
| 822 | } |
| 823 | } else { |
| 824 | BrowsingContext* bc = window->GetBrowsingContext(); |
| 825 | BrowsingContext* active = GetActiveBrowsingContext(); |
| 826 | if (active != bc->Top()) { |
| 827 | return; |
| 828 | } |
| 829 | } |
| 830 | |
| 831 | // clear the mouse capture as the active window has changed |
| 832 | PresShell::ReleaseCapturingContent(); |
| 833 | |
| 834 | // In addition, reset the drag state to ensure that we are no longer in |
| 835 | // drag-select mode. |
| 836 | if (mFocusedWindow) { |
| 837 | nsCOMPtr<nsIDocShell> docShell = mFocusedWindow->GetDocShell(); |
| 838 | if (docShell) { |
| 839 | if (PresShell* presShell = docShell->GetPresShell()) { |
| 840 | RefPtr<nsFrameSelection> frameSelection = presShell->FrameSelection(); |
| 841 | frameSelection->SetDragState(false); |
| 842 | } |
| 843 | } |
| 844 | } |
| 845 | |
| 846 | if (XRE_IsParentProcess()) { |
| 847 | ActivateOrDeactivate(window, false); |
| 848 | } |
| 849 | |
| 850 | // keep track of the window being lowered, so that attempts to raise the |
| 851 | // window can be prevented until we return. Otherwise, focus can get into |
| 852 | // an unusual state. |
| 853 | mWindowBeingLowered = window; |
| 854 | if (XRE_IsParentProcess()) { |
| 855 | mActiveWindow = nullptr; |
| 856 | } else { |
| 857 | BrowsingContext* bc = window->GetBrowsingContext(); |
| 858 | if (bc == bc->Top()) { |
| 859 | SetActiveBrowsingContextInContent(nullptr, aActionId, |
| 860 | false /* aIsEnteringBFCache */); |
| 861 | } |
| 862 | } |
| 863 | |
| 864 | if (mFocusedWindow) { |
| 865 | Blur(nullptr, nullptr, true, true, false, aActionId); |
| 866 | } |
| 867 | |
| 868 | mWindowBeingLowered = nullptr; |
| 869 | } |
| 870 | |
| 871 | nsresult nsFocusManager::ContentRemoved(Document* aDocument, |
| 872 | nsIContent* aContent) { |
| 873 | 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" , 873); return NS_ERROR_INVALID_ARG; } } while (false); |
| 874 | 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" , 874); return NS_ERROR_INVALID_ARG; } } while (false); |
| 875 | |
| 876 | nsPIDOMWindowOuter* windowPtr = aDocument->GetWindow(); |
| 877 | if (!windowPtr) { |
| 878 | return NS_OK; |
| 879 | } |
| 880 | |
| 881 | // if the content is currently focused in the window, or is an |
| 882 | // shadow-including inclusive ancestor of the currently focused element, |
| 883 | // reset the focus within that window. |
| 884 | Element* previousFocusedElementPtr = windowPtr->GetFocusedElement(); |
| 885 | if (!previousFocusedElementPtr) { |
| 886 | return NS_OK; |
| 887 | } |
| 888 | |
| 889 | if (!nsContentUtils::ContentIsHostIncludingDescendantOf( |
| 890 | previousFocusedElementPtr, aContent)) { |
| 891 | return NS_OK; |
| 892 | } |
| 893 | |
| 894 | RefPtr<nsPIDOMWindowOuter> window = windowPtr; |
| 895 | RefPtr<Element> previousFocusedElement = previousFocusedElementPtr; |
| 896 | |
| 897 | RefPtr<Element> newFocusedElement = [&]() -> Element* { |
| 898 | if (auto* sr = ShadowRoot::FromNode(aContent)) { |
| 899 | if (sr->IsUAWidget() && sr->Host()->IsHTMLElement(nsGkAtoms::input)) { |
| 900 | return sr->Host(); |
| 901 | } |
| 902 | } |
| 903 | return nullptr; |
| 904 | }(); |
| 905 | |
| 906 | window->SetFocusedElement(newFocusedElement); |
| 907 | |
| 908 | // if this window is currently focused, clear the global focused |
| 909 | // element as well, but don't fire any events. |
| 910 | if (window->GetBrowsingContext() == GetFocusedBrowsingContext()) { |
| 911 | mFocusedElement = newFocusedElement; |
| 912 | } else if (Document* subdoc = |
| 913 | aDocument->GetSubDocumentFor(previousFocusedElement)) { |
| 914 | // Check if the node that was focused is an iframe or similar by looking if |
| 915 | // it has a subdocument. This would indicate that this focused iframe |
| 916 | // and its descendants will be going away. We will need to move the focus |
| 917 | // somewhere else, so just clear the focus in the toplevel window so that no |
| 918 | // element is focused. |
| 919 | // |
| 920 | // The Fission case is handled in FlushAndCheckIfFocusable(). |
| 921 | if (nsCOMPtr<nsIDocShell> docShell = subdoc->GetDocShell()) { |
| 922 | nsCOMPtr<nsPIDOMWindowOuter> childWindow = docShell->GetWindow(); |
| 923 | if (childWindow && |
| 924 | IsSameOrAncestor(childWindow, GetFocusedBrowsingContext())) { |
| 925 | if (XRE_IsParentProcess()) { |
| 926 | nsCOMPtr<nsPIDOMWindowOuter> activeWindow = mActiveWindow; |
| 927 | ClearFocus(activeWindow); |
| 928 | } else { |
| 929 | BrowsingContext* active = GetActiveBrowsingContext(); |
| 930 | if (active) { |
| 931 | if (active->IsInProcess()) { |
| 932 | nsCOMPtr<nsPIDOMWindowOuter> activeWindow = |
| 933 | active->GetDOMWindow(); |
| 934 | ClearFocus(activeWindow); |
| 935 | } else { |
| 936 | mozilla::dom::ContentChild* contentChild = |
| 937 | mozilla::dom::ContentChild::GetSingleton(); |
| 938 | 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" , 938); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 938; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 939 | contentChild->SendClearFocus(active); |
| 940 | } |
| 941 | } // no else, because ClearFocus does nothing with nullptr |
| 942 | } |
| 943 | } |
| 944 | } |
| 945 | } |
| 946 | |
| 947 | // Notify the editor in case we removed its ancestor limiter. |
| 948 | if (previousFocusedElement->IsEditable()) { |
| 949 | if (nsIDocShell* const docShell = aDocument->GetDocShell()) { |
| 950 | if (HTMLEditor* const htmlEditor = docShell->GetHTMLEditor()) { |
| 951 | Selection* const selection = htmlEditor->GetSelection(); |
| 952 | if (selection && selection->GetFrameSelection() && |
| 953 | previousFocusedElement == |
| 954 | selection->GetFrameSelection()->GetAncestorLimiter()) { |
| 955 | // The editing host may be being removed right now. So, it's already |
| 956 | // removed from the child chain of the parent node, but it still know |
| 957 | // the parent node. This could cause unexpected result at scheduling |
| 958 | // paint of the caret. Therefore, we should call FinalizeSelection |
| 959 | // after unblocking to run the script. |
| 960 | nsContentUtils::AddScriptRunner( |
| 961 | NewRunnableMethod("HTMLEditor::FinalizeSelection", htmlEditor, |
| 962 | &HTMLEditor::FinalizeSelection)); |
| 963 | } |
| 964 | } |
| 965 | } |
| 966 | } |
| 967 | |
| 968 | if (!newFocusedElement) { |
| 969 | NotifyFocusStateChange(previousFocusedElement, newFocusedElement, 0, |
| 970 | /* aGettingFocus = */ false, false); |
| 971 | } else { |
| 972 | // We should already have the right state, which is managed by the <input> |
| 973 | // widget. |
| 974 | 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" , 974); AnnotateMozCrashReason("MOZ_ASSERT" "(" "newFocusedElement->State().HasState(ElementState::FOCUS)" ")"); do { *((volatile int*)__null) = 974; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 975 | } |
| 976 | |
| 977 | // If we changed focused element and the element still has focus, let's |
| 978 | // notify IME of focus. Note that if new focus move has already occurred |
| 979 | // by running script, we should not let IMEStateManager of outdated focus |
| 980 | // change. |
| 981 | if (mFocusedElement == newFocusedElement && mFocusedWindow == window) { |
| 982 | RefPtr<nsPresContext> presContext(aDocument->GetPresContext()); |
| 983 | IMEStateManager::OnChangeFocus(presContext, newFocusedElement, |
| 984 | InputContextAction::Cause::CAUSE_UNKNOWN); |
| 985 | } |
| 986 | |
| 987 | return NS_OK; |
| 988 | } |
| 989 | |
| 990 | void nsFocusManager::WindowShown(mozIDOMWindowProxy* aWindow, |
| 991 | bool aNeedsFocus) { |
| 992 | if (!aWindow) { |
| 993 | return; |
| 994 | } |
| 995 | |
| 996 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
| 997 | |
| 998 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0))) { |
| 999 | 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) |
| 1000 | 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); |
| 1001 | Document* doc = window->GetExtantDoc(); |
| 1002 | if (doc && doc->GetDocumentURI()) { |
| 1003 | 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) |
| 1004 | 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); |
| 1005 | } |
| 1006 | |
| 1007 | if (mFocusedWindow) { |
| 1008 | doc = mFocusedWindow->GetExtantDoc(); |
| 1009 | if (doc && doc->GetDocumentURI()) { |
| 1010 | 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) |
| 1011 | 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); |
| 1012 | } |
| 1013 | } |
| 1014 | } |
| 1015 | |
| 1016 | if (XRE_IsParentProcess()) { |
| 1017 | if (BrowsingContext* bc = window->GetBrowsingContext()) { |
| 1018 | if (bc->IsTop()) { |
| 1019 | bc->SetIsActiveBrowserWindow(bc->GetIsActiveBrowserWindow()); |
| 1020 | } |
| 1021 | } |
| 1022 | } |
| 1023 | |
| 1024 | if (XRE_IsParentProcess()) { |
| 1025 | if (mFocusedWindow != window) { |
| 1026 | return; |
| 1027 | } |
| 1028 | } else { |
| 1029 | BrowsingContext* bc = window->GetBrowsingContext(); |
| 1030 | if (!bc || mFocusedBrowsingContextInContent != bc) { |
| 1031 | return; |
| 1032 | } |
| 1033 | // Sync the window for a newly-created OOP iframe |
| 1034 | // Set actionId to zero to signify that it should be ignored. |
| 1035 | SetFocusedWindowInternal(window, 0, false); |
| 1036 | } |
| 1037 | |
| 1038 | if (aNeedsFocus) { |
| 1039 | nsCOMPtr<nsPIDOMWindowOuter> currentWindow; |
| 1040 | RefPtr<Element> currentFocus = GetFocusedDescendant( |
| 1041 | window, eIncludeAllDescendants, getter_AddRefs(currentWindow)); |
| 1042 | |
| 1043 | if (currentWindow) { |
| 1044 | Focus(currentWindow, currentFocus, 0, true, false, false, true, |
| 1045 | GenerateFocusActionId()); |
| 1046 | } |
| 1047 | } else { |
| 1048 | // Sometimes, an element in a window can be focused before the window is |
| 1049 | // visible, which would mean that the widget may not be properly focused. |
| 1050 | // When the window becomes visible, make sure the right widget is focused. |
| 1051 | EnsureCurrentWidgetFocused(CallerType::System); |
| 1052 | } |
| 1053 | } |
| 1054 | |
| 1055 | void nsFocusManager::WindowHidden(mozIDOMWindowProxy* aWindow, |
| 1056 | uint64_t aActionId, bool aIsEnteringBFCache) { |
| 1057 | // if there is no window or it is not the same or an ancestor of the |
| 1058 | // currently focused window, just return, as the current focus will not |
| 1059 | // be affected. |
| 1060 | |
| 1061 | if (!aWindow) { |
| 1062 | return; |
| 1063 | } |
| 1064 | |
| 1065 | nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow); |
| 1066 | |
| 1067 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0))) { |
| 1068 | 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) |
| 1069 | 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) |
| 1070 | 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); |
| 1071 | nsAutoCString spec; |
| 1072 | Document* doc = window->GetExtantDoc(); |
| 1073 | if (doc && doc->GetDocumentURI()) { |
| 1074 | 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) |
| 1075 | 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); |
| 1076 | } |
| 1077 | |
| 1078 | if (mFocusedWindow) { |
| 1079 | doc = mFocusedWindow->GetExtantDoc(); |
| 1080 | if (doc && doc->GetDocumentURI()) { |
| 1081 | 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) |
| 1082 | 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); |
| 1083 | } |
| 1084 | } |
| 1085 | |
| 1086 | if (mActiveWindow) { |
| 1087 | doc = mActiveWindow->GetExtantDoc(); |
| 1088 | if (doc && doc->GetDocumentURI()) { |
| 1089 | 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) |
| 1090 | 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); |
| 1091 | } |
| 1092 | } |
| 1093 | } |
| 1094 | |
| 1095 | if (!IsSameOrAncestor(window, mFocusedWindow)) { |
| 1096 | return; |
| 1097 | } |
| 1098 | |
| 1099 | // at this point, we know that the window being hidden is either the focused |
| 1100 | // window, or an ancestor of the focused window. Either way, the focus is no |
| 1101 | // longer valid, so it needs to be updated. |
| 1102 | |
| 1103 | const RefPtr<Element> oldFocusedElement = std::move(mFocusedElement); |
| 1104 | |
| 1105 | nsCOMPtr<nsIDocShell> focusedDocShell = mFocusedWindow->GetDocShell(); |
| 1106 | if (!focusedDocShell) { |
| 1107 | return; |
| 1108 | } |
| 1109 | |
| 1110 | const RefPtr<PresShell> presShell = focusedDocShell->GetPresShell(); |
| 1111 | |
| 1112 | if (oldFocusedElement && oldFocusedElement->IsInComposedDoc()) { |
| 1113 | NotifyFocusStateChange(oldFocusedElement, nullptr, 0, false, false); |
| 1114 | window->UpdateCommands(u"focus"_ns); |
| 1115 | |
| 1116 | if (presShell) { |
| 1117 | RefPtr<Document> composedDoc = oldFocusedElement->GetComposedDoc(); |
| 1118 | SendFocusOrBlurEvent(eBlur, presShell, composedDoc, oldFocusedElement, |
| 1119 | false); |
| 1120 | } |
| 1121 | } |
| 1122 | |
| 1123 | const RefPtr<nsPresContext> focusedPresContext = |
| 1124 | presShell ? presShell->GetPresContext() : nullptr; |
| 1125 | IMEStateManager::OnChangeFocus(focusedPresContext, nullptr, |
| 1126 | GetFocusMoveActionCause(0)); |
| 1127 | if (presShell) { |
| 1128 | SetCaretVisible(presShell, false, nullptr); |
| 1129 | } |
| 1130 | |
| 1131 | // If a window is being "hidden" because its BrowsingContext is changing |
| 1132 | // remoteness, we don't want to handle docshell destruction by moving focus. |
| 1133 | // Instead, the focused browsing context should stay the way it is (so that |
| 1134 | // the newly "shown" window in the other process knows to take focus) and |
| 1135 | // we should just null out the process-local field. |
| 1136 | nsCOMPtr<nsIDocShell> docShellBeingHidden = window->GetDocShell(); |
| 1137 | // Check if we're currently hiding a non-remote nsDocShell due to its |
| 1138 | // BrowsingContext navigating to become remote. Normally, when a focused |
| 1139 | // subframe is hidden, focus is moved to the frame element, but focus should |
| 1140 | // stay with the BrowsingContext when performing a process switch. We don't |
| 1141 | // need to consider process switches where the hiding docshell is already |
| 1142 | // remote (ie. GetEmbedderElement is nullptr), as shifting remoteness to the |
| 1143 | // frame element is handled elsewhere. |
| 1144 | if (docShellBeingHidden && |
| 1145 | nsDocShell::Cast(docShellBeingHidden)->WillChangeProcess() && |
| 1146 | docShellBeingHidden->GetBrowsingContext()->GetEmbedderElement()) { |
| 1147 | if (mFocusedWindow != window) { |
| 1148 | // The window being hidden is an ancestor of the focused window. |
| 1149 | #ifdef DEBUG1 |
| 1150 | BrowsingContext* ancestor = window->GetBrowsingContext(); |
| 1151 | BrowsingContext* bc = mFocusedWindow->GetBrowsingContext(); |
| 1152 | for (;;) { |
| 1153 | if (!bc) { |
| 1154 | 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" , 1154); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "Should have found ancestor" ")"); do { *((volatile int*)__null ) = 1154; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 1155 | } |
| 1156 | bc = bc->GetParent(); |
| 1157 | if (ancestor == bc) { |
| 1158 | break; |
| 1159 | } |
| 1160 | } |
| 1161 | #endif |
| 1162 | // This call adjusts the focused browsing context and window. |
| 1163 | // The latter gets nulled out immediately below. |
| 1164 | SetFocusedWindowInternal(window, aActionId); |
| 1165 | } |
| 1166 | mFocusedWindow = nullptr; |
| 1167 | window->SetFocusedElement(nullptr); |
| 1168 | return; |
| 1169 | } |
| 1170 | |
| 1171 | // if the docshell being hidden is being destroyed, then we want to move |
| 1172 | // focus somewhere else. Call ClearFocus on the toplevel window, which |
| 1173 | // will have the effect of clearing the focus and moving the focused window |
| 1174 | // to the toplevel window. But if the window isn't being destroyed, we are |
| 1175 | // likely just loading a new document in it, so we want to maintain the |
| 1176 | // focused window so that the new document gets properly focused. |
| 1177 | bool beingDestroyed = !docShellBeingHidden; |
| 1178 | if (docShellBeingHidden) { |
| 1179 | docShellBeingHidden->IsBeingDestroyed(&beingDestroyed); |
| 1180 | } |
| 1181 | if (beingDestroyed) { |
| 1182 | // There is usually no need to do anything if a toplevel window is going |
| 1183 | // away, as we assume that WindowLowered will be called. However, this may |
| 1184 | // not happen if nsIAppStartup::eForceQuit is used to quit, and can cause |
| 1185 | // a leak. So if the active window is being destroyed, call WindowLowered |
| 1186 | // directly. |
| 1187 | |
| 1188 | if (XRE_IsParentProcess()) { |
| 1189 | nsCOMPtr<nsPIDOMWindowOuter> activeWindow = mActiveWindow; |
| 1190 | if (activeWindow == mFocusedWindow || activeWindow == window) { |
| 1191 | WindowLowered(activeWindow, aActionId); |
| 1192 | } else { |
| 1193 | ClearFocus(activeWindow); |
| 1194 | } |
| 1195 | } else { |
| 1196 | BrowsingContext* active = GetActiveBrowsingContext(); |
| 1197 | if (active) { |
| 1198 | if (nsCOMPtr<nsPIDOMWindowOuter> activeWindow = |
| 1199 | active->GetDOMWindow()) { |
| 1200 | if ((mFocusedWindow && |
| 1201 | mFocusedWindow->GetBrowsingContext() == active) || |
| 1202 | (window->GetBrowsingContext() == active)) { |
| 1203 | WindowLowered(activeWindow, aActionId); |
| 1204 | } else { |
| 1205 | ClearFocus(activeWindow); |
| 1206 | } |
| 1207 | } // else do nothing when an out-of-process iframe is torn down |
| 1208 | } |
| 1209 | } |
| 1210 | return; |
| 1211 | } |
| 1212 | |
| 1213 | if (!XRE_IsParentProcess() && |
| 1214 | mActiveBrowsingContextInContent == |
| 1215 | docShellBeingHidden->GetBrowsingContext() && |
| 1216 | mActiveBrowsingContextInContent->GetIsInBFCache()) { |
| 1217 | SetActiveBrowsingContextInContent(nullptr, aActionId, aIsEnteringBFCache); |
| 1218 | } |
| 1219 | |
| 1220 | // if the window being hidden is an ancestor of the focused window, adjust |
| 1221 | // the focused window so that it points to the one being hidden. This |
| 1222 | // ensures that the focused window isn't in a chain of frames that doesn't |
| 1223 | // exist any more. |
| 1224 | if (window != mFocusedWindow) { |
| 1225 | nsCOMPtr<nsIDocShellTreeItem> dsti = |
| 1226 | mFocusedWindow ? mFocusedWindow->GetDocShell() : nullptr; |
| 1227 | if (dsti) { |
| 1228 | nsCOMPtr<nsIDocShellTreeItem> parentDsti; |
| 1229 | dsti->GetInProcessParent(getter_AddRefs(parentDsti)); |
| 1230 | if (parentDsti) { |
| 1231 | if (nsCOMPtr<nsPIDOMWindowOuter> parentWindow = |
| 1232 | parentDsti->GetWindow()) { |
| 1233 | parentWindow->SetFocusedElement(nullptr); |
| 1234 | } |
| 1235 | } |
| 1236 | } |
| 1237 | |
| 1238 | SetFocusedWindowInternal(window, aActionId); |
| 1239 | } |
| 1240 | } |
| 1241 | |
| 1242 | void nsFocusManager::FireDelayedEvents(Document* aDocument) { |
| 1243 | 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" , 1243); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDocument" ")" ); do { *((volatile int*)__null) = 1243; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1244 | |
| 1245 | // fire any delayed focus and blur events in the same order that they were |
| 1246 | // added |
| 1247 | for (uint32_t i = 0; i < mDelayedBlurFocusEvents.Length(); i++) { |
| 1248 | if (mDelayedBlurFocusEvents[i].mDocument == aDocument) { |
| 1249 | if (!aDocument->GetInnerWindow() || |
| 1250 | !aDocument->GetInnerWindow()->IsCurrentInnerWindow()) { |
| 1251 | // If the document was navigated away from or is defunct, don't bother |
| 1252 | // firing events on it. Note the symmetry between this condition and |
| 1253 | // the similar one in Document.cpp:FireOrClearDelayedEvents. |
| 1254 | mDelayedBlurFocusEvents.RemoveElementAt(i); |
| 1255 | --i; |
| 1256 | } else if (!aDocument->EventHandlingSuppressed()) { |
| 1257 | EventMessage message = mDelayedBlurFocusEvents[i].mEventMessage; |
| 1258 | nsCOMPtr<EventTarget> target = mDelayedBlurFocusEvents[i].mTarget; |
| 1259 | RefPtr<PresShell> presShell = mDelayedBlurFocusEvents[i].mPresShell; |
| 1260 | nsCOMPtr<EventTarget> relatedTarget = |
| 1261 | mDelayedBlurFocusEvents[i].mRelatedTarget; |
| 1262 | mDelayedBlurFocusEvents.RemoveElementAt(i); |
| 1263 | |
| 1264 | FireFocusOrBlurEvent(message, presShell, target, false, false, |
| 1265 | relatedTarget); |
| 1266 | --i; |
| 1267 | } |
| 1268 | } |
| 1269 | } |
| 1270 | } |
| 1271 | |
| 1272 | void nsFocusManager::WasNuked(nsPIDOMWindowOuter* aWindow) { |
| 1273 | 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" , 1273); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aWindow" ") (" "Expected non-null window." ")"); do { *((volatile int*)__null ) = 1273; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 1274 | 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" , 1275); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aWindow != mActiveWindow" ") (" "How come we're nuking a window that's still active?" ")" ); do { *((volatile int*)__null) = 1275; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1275 | "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" , 1275); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aWindow != mActiveWindow" ") (" "How come we're nuking a window that's still active?" ")" ); do { *((volatile int*)__null) = 1275; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1276 | if (aWindow == mFocusedWindow) { |
| 1277 | mFocusedWindow = nullptr; |
| 1278 | SetFocusedBrowsingContext(nullptr, GenerateFocusActionId()); |
| 1279 | mFocusedElement = nullptr; |
| 1280 | } |
| 1281 | } |
| 1282 | |
| 1283 | nsFocusManager::BlurredElementInfo::BlurredElementInfo(Element& aElement) |
| 1284 | : mElement(aElement) {} |
| 1285 | |
| 1286 | nsFocusManager::BlurredElementInfo::~BlurredElementInfo() = default; |
| 1287 | |
| 1288 | // https://drafts.csswg.org/selectors-4/#the-focus-visible-pseudo |
| 1289 | static bool ShouldMatchFocusVisible(nsPIDOMWindowOuter* aWindow, |
| 1290 | const Element& aElement, |
| 1291 | int32_t aFocusFlags) { |
| 1292 | // If we were explicitly requested to show the ring, do it. |
| 1293 | if (aFocusFlags & nsIFocusManager::FLAG_SHOWRING) { |
| 1294 | return true; |
| 1295 | } |
| 1296 | |
| 1297 | if (aFocusFlags & nsIFocusManager::FLAG_NOSHOWRING) { |
| 1298 | return false; |
| 1299 | } |
| 1300 | |
| 1301 | if (aWindow->ShouldShowFocusRing()) { |
| 1302 | // The window decision also trumps any other heuristic. |
| 1303 | return true; |
| 1304 | } |
| 1305 | |
| 1306 | // Any element which supports keyboard input (such as an input element, or any |
| 1307 | // other element which may trigger a virtual keyboard to be shown on focus if |
| 1308 | // a physical keyboard is not present) should always match :focus-visible when |
| 1309 | // focused. |
| 1310 | { |
| 1311 | if (aElement.IsHTMLElement(nsGkAtoms::textarea) || aElement.IsEditable()) { |
| 1312 | return true; |
| 1313 | } |
| 1314 | |
| 1315 | if (auto* input = HTMLInputElement::FromNode(aElement)) { |
| 1316 | if (input->IsSingleLineTextControl()) { |
| 1317 | return true; |
| 1318 | } |
| 1319 | } |
| 1320 | } |
| 1321 | |
| 1322 | switch (nsFocusManager::GetFocusMoveActionCause(aFocusFlags)) { |
| 1323 | case InputContextAction::CAUSE_KEY: |
| 1324 | // If the user interacts with the page via the keyboard, the currently |
| 1325 | // focused element should match :focus-visible (i.e. keyboard usage may |
| 1326 | // change whether this pseudo-class matches even if it doesn't affect |
| 1327 | // :focus). |
| 1328 | return true; |
| 1329 | case InputContextAction::CAUSE_UNKNOWN: |
| 1330 | // We render outlines if the last "known" focus method was by key or there |
| 1331 | // was no previous known focus method, otherwise we don't. |
| 1332 | return aWindow->UnknownFocusMethodShouldShowOutline(); |
| 1333 | case InputContextAction::CAUSE_MOUSE: |
| 1334 | case InputContextAction::CAUSE_TOUCH: |
| 1335 | case InputContextAction::CAUSE_LONGPRESS: |
| 1336 | // If the user interacts with the page via a pointing device, such that |
| 1337 | // the focus is moved to a new element which does not support user input, |
| 1338 | // the newly focused element should not match :focus-visible. |
| 1339 | return false; |
| 1340 | case InputContextAction::CAUSE_UNKNOWN_CHROME: |
| 1341 | case InputContextAction::CAUSE_UNKNOWN_DURING_KEYBOARD_INPUT: |
| 1342 | case InputContextAction::CAUSE_UNKNOWN_DURING_NON_KEYBOARD_INPUT: |
| 1343 | // TODO(emilio): We could return some of these though, looking at |
| 1344 | // UserActivation. We may want to suppress focus rings for unknown / |
| 1345 | // programatic focus if the user is interacting with the page but not |
| 1346 | // during keyboard input, or such. |
| 1347 | 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" , 1348); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "These don't get returned by GetFocusMoveActionCause" ")"); do { *((volatile int*)__null) = 1348; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1348 | "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" , 1348); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "These don't get returned by GetFocusMoveActionCause" ")"); do { *((volatile int*)__null) = 1348; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1349 | break; |
| 1350 | } |
| 1351 | return false; |
| 1352 | } |
| 1353 | |
| 1354 | /* static */ |
| 1355 | void nsFocusManager::NotifyFocusStateChange(Element* aElement, |
| 1356 | Element* aElementToFocus, |
| 1357 | int32_t aFlags, bool aGettingFocus, |
| 1358 | bool aShouldShowFocusRing) { |
| 1359 | 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" , 1359); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aGettingFocus" ")"); do { *((volatile int*)__null) = 1359; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 1360 | nsIContent* commonAncestor = nullptr; |
| 1361 | if (aElementToFocus) { |
| 1362 | commonAncestor = nsContentUtils::GetCommonFlattenedTreeAncestor( |
| 1363 | aElement, aElementToFocus); |
| 1364 | } |
| 1365 | |
| 1366 | if (aGettingFocus) { |
| 1367 | ElementState stateToAdd = ElementState::FOCUS; |
| 1368 | if (aShouldShowFocusRing) { |
| 1369 | stateToAdd |= ElementState::FOCUSRING; |
| 1370 | } |
| 1371 | aElement->AddStates(stateToAdd); |
| 1372 | |
| 1373 | for (nsIContent* host = aElement->GetContainingShadowHost(); host; |
| 1374 | host = host->GetContainingShadowHost()) { |
| 1375 | host->AsElement()->AddStates(ElementState::FOCUS); |
| 1376 | } |
| 1377 | } else { |
| 1378 | constexpr auto kStatesToRemove = |
| 1379 | ElementState::FOCUS | ElementState::FOCUSRING; |
| 1380 | aElement->RemoveStates(kStatesToRemove); |
| 1381 | for (nsIContent* host = aElement->GetContainingShadowHost(); host; |
| 1382 | host = host->GetContainingShadowHost()) { |
| 1383 | host->AsElement()->RemoveStates(kStatesToRemove); |
| 1384 | } |
| 1385 | } |
| 1386 | |
| 1387 | // Special case for <input type="checkbox"> and <input type="radio">. |
| 1388 | // The other browsers cancel active state when they gets lost focus, but |
| 1389 | // does not do it for the other elements such as <button> and <a href="...">. |
| 1390 | // Additionally, they may be activated with <label>, but they will get focus |
| 1391 | // at `click`, but activated at `mousedown`. Therefore, we need to cancel |
| 1392 | // active state at moving focus. |
| 1393 | if (RefPtr<nsPresContext> presContext = |
| 1394 | aElement->GetPresContext(Element::PresContextFor::eForComposedDoc)) { |
| 1395 | RefPtr<EventStateManager> esm = presContext->EventStateManager(); |
| 1396 | auto* activeInputElement = |
| 1397 | HTMLInputElement::FromNodeOrNull(esm->GetActiveContent()); |
| 1398 | if (activeInputElement && |
| 1399 | (activeInputElement->ControlType() == FormControlType::InputCheckbox || |
| 1400 | activeInputElement->ControlType() == FormControlType::InputRadio) && |
| 1401 | !activeInputElement->State().HasState(ElementState::FOCUS)) { |
| 1402 | esm->SetContentState(nullptr, ElementState::ACTIVE); |
| 1403 | } |
| 1404 | } |
| 1405 | |
| 1406 | for (nsIContent* content = aElement; content && content != commonAncestor; |
| 1407 | content = content->GetFlattenedTreeParent()) { |
| 1408 | Element* element = Element::FromNode(content); |
| 1409 | if (!element) { |
| 1410 | continue; |
| 1411 | } |
| 1412 | |
| 1413 | if (aGettingFocus) { |
| 1414 | if (element->State().HasState(ElementState::FOCUS_WITHIN)) { |
| 1415 | break; |
| 1416 | } |
| 1417 | element->AddStates(ElementState::FOCUS_WITHIN); |
| 1418 | } else { |
| 1419 | element->RemoveStates(ElementState::FOCUS_WITHIN); |
| 1420 | } |
| 1421 | } |
| 1422 | } |
| 1423 | |
| 1424 | // static |
| 1425 | void nsFocusManager::EnsureCurrentWidgetFocused(CallerType aCallerType) { |
| 1426 | if (!mFocusedWindow || sTestMode) return; |
| 1427 | |
| 1428 | // get the main child widget for the focused window and ensure that the |
| 1429 | // platform knows that this widget is focused. |
| 1430 | nsCOMPtr<nsIDocShell> docShell = mFocusedWindow->GetDocShell(); |
| 1431 | if (!docShell) { |
| 1432 | return; |
| 1433 | } |
| 1434 | RefPtr<PresShell> presShell = docShell->GetPresShell(); |
| 1435 | if (!presShell) { |
| 1436 | return; |
| 1437 | } |
| 1438 | nsViewManager* vm = presShell->GetViewManager(); |
| 1439 | if (!vm) { |
| 1440 | return; |
| 1441 | } |
| 1442 | nsCOMPtr<nsIWidget> widget = vm->GetRootWidget(); |
| 1443 | if (!widget) { |
| 1444 | return; |
| 1445 | } |
| 1446 | widget->SetFocus(nsIWidget::Raise::No, aCallerType); |
| 1447 | } |
| 1448 | |
| 1449 | void nsFocusManager::ActivateOrDeactivate(nsPIDOMWindowOuter* aWindow, |
| 1450 | bool aActive) { |
| 1451 | 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" , 1451); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 1451; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1452 | if (!aWindow) { |
| 1453 | return; |
| 1454 | } |
| 1455 | |
| 1456 | if (BrowsingContext* bc = aWindow->GetBrowsingContext()) { |
| 1457 | 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" , 1457); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bc->IsTop()" ")"); do { *((volatile int*)__null) = 1457; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1458 | |
| 1459 | RefPtr<CanonicalBrowsingContext> chromeTop = |
| 1460 | bc->Canonical()->TopCrossChromeBoundary(); |
| 1461 | 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" , 1461); AnnotateMozCrashReason("MOZ_ASSERT" "(" "bc == chromeTop" ")"); do { *((volatile int*)__null) = 1461; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1462 | |
| 1463 | chromeTop->SetIsActiveBrowserWindow(aActive); |
| 1464 | chromeTop->CallOnAllTopDescendants( |
| 1465 | [aActive](CanonicalBrowsingContext* aBrowsingContext) { |
| 1466 | aBrowsingContext->SetIsActiveBrowserWindow(aActive); |
| 1467 | return CallState::Continue; |
| 1468 | }, |
| 1469 | /* aIncludeNestedBrowsers = */ true); |
| 1470 | } |
| 1471 | |
| 1472 | if (aWindow->GetExtantDoc()) { |
| 1473 | nsContentUtils::DispatchEventOnlyToChrome( |
| 1474 | aWindow->GetExtantDoc(), |
| 1475 | nsGlobalWindowInner::Cast(aWindow->GetCurrentInnerWindow()), |
| 1476 | aActive ? u"activate"_ns : u"deactivate"_ns, CanBubble::eYes, |
| 1477 | Cancelable::eYes, nullptr); |
| 1478 | } |
| 1479 | } |
| 1480 | |
| 1481 | // Retrieves innerWindowId of the window of the last focused element to |
| 1482 | // log a warning to the website console. |
| 1483 | void LogWarningFullscreenWindowRaise(Element* aElement) { |
| 1484 | nsCOMPtr<nsFrameLoaderOwner> frameLoaderOwner(do_QueryInterface(aElement)); |
| 1485 | 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" , 1485); return; } } while (false); |
| 1486 | |
| 1487 | RefPtr<nsFrameLoader> frameLoader = frameLoaderOwner->GetFrameLoader(); |
| 1488 | 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" , 1488); return; } } while (false); |
| 1489 | |
| 1490 | RefPtr<BrowsingContext> browsingContext = frameLoader->GetBrowsingContext(); |
| 1491 | 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" , 1491); return; } } while (false); |
| 1492 | |
| 1493 | WindowGlobalParent* windowGlobalParent = |
| 1494 | browsingContext->Canonical()->GetCurrentWindowGlobal(); |
| 1495 | 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" , 1495); return; } } while (false); |
| 1496 | |
| 1497 | // Log to console |
| 1498 | nsAutoString localizedMsg; |
| 1499 | nsTArray<nsString> params; |
| 1500 | nsresult rv = nsContentUtils::FormatLocalizedString( |
| 1501 | nsContentUtils::eDOM_PROPERTIES, "FullscreenExitWindowFocus", params, |
| 1502 | localizedMsg); |
| 1503 | |
| 1504 | 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" , 1504); return; } } while (false); |
| 1505 | |
| 1506 | Unused << nsContentUtils::ReportToConsoleByWindowID( |
| 1507 | localizedMsg, nsIScriptError::warningFlag, "DOM"_ns, |
| 1508 | windowGlobalParent->InnerWindowId(), |
| 1509 | SourceLocation(windowGlobalParent->GetDocumentURI())); |
| 1510 | } |
| 1511 | |
| 1512 | // Ensure that when an embedded popup with a noautofocus attribute |
| 1513 | // like a date picker is opened and focused, the parent page does not blur |
| 1514 | static bool IsEmeddededInNoautofocusPopup(BrowsingContext& aBc) { |
| 1515 | auto* embedder = aBc.GetEmbedderElement(); |
| 1516 | if (!embedder) { |
| 1517 | return false; |
| 1518 | } |
| 1519 | nsIFrame* f = embedder->GetPrimaryFrame(); |
| 1520 | if (!f || !f->HasAnyStateBits(NS_FRAME_IN_POPUP)) { |
| 1521 | return false; |
| 1522 | } |
| 1523 | |
| 1524 | nsIFrame* menuPopup = |
| 1525 | nsLayoutUtils::GetClosestFrameOfType(f, LayoutFrameType::MenuPopup); |
| 1526 | 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" , 1526); AnnotateMozCrashReason("MOZ_ASSERT" "(" "menuPopup" ") (" "NS_FRAME_IN_POPUP lied?" ")"); do { *((volatile int*)__null ) = 1526; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 1527 | return static_cast<nsMenuPopupFrame*>(menuPopup) |
| 1528 | ->PopupElement() |
| 1529 | .GetXULBoolAttr(nsGkAtoms::noautofocus); |
| 1530 | } |
| 1531 | |
| 1532 | Maybe<uint64_t> nsFocusManager::SetFocusInner(Element* aNewContent, |
| 1533 | int32_t aFlags, |
| 1534 | bool aFocusChanged, |
| 1535 | bool aAdjustWidget) { |
| 1536 | // if the element is not focusable, just return and leave the focus as is |
| 1537 | RefPtr<Element> elementToFocus = |
| 1538 | FlushAndCheckIfFocusable(aNewContent, aFlags); |
| 1539 | if (!elementToFocus) { |
| 1540 | return Nothing(); |
| 1541 | } |
| 1542 | |
| 1543 | const RefPtr<BrowsingContext> focusedBrowsingContext = |
| 1544 | GetFocusedBrowsingContext(); |
| 1545 | |
| 1546 | // check if the element to focus is a frame (iframe) containing a child |
| 1547 | // document. Frames are never directly focused; instead focusing a frame |
| 1548 | // means focus what is inside the frame. To do this, the descendant content |
| 1549 | // within the frame is retrieved and that will be focused instead. |
| 1550 | nsCOMPtr<nsPIDOMWindowOuter> newWindow; |
| 1551 | nsCOMPtr<nsPIDOMWindowOuter> subWindow = GetContentWindow(elementToFocus); |
| 1552 | if (subWindow) { |
| 1553 | elementToFocus = GetFocusedDescendant(subWindow, eIncludeAllDescendants, |
| 1554 | getter_AddRefs(newWindow)); |
| 1555 | |
| 1556 | // since a window is being refocused, clear aFocusChanged so that the |
| 1557 | // caret position isn't updated. |
| 1558 | aFocusChanged = false; |
| 1559 | } |
| 1560 | |
| 1561 | // unless it was set above, retrieve the window for the element to focus |
| 1562 | if (!newWindow) { |
| 1563 | newWindow = GetCurrentWindow(elementToFocus); |
| 1564 | } |
| 1565 | |
| 1566 | RefPtr<BrowsingContext> newBrowsingContext; |
| 1567 | if (newWindow) { |
| 1568 | newBrowsingContext = newWindow->GetBrowsingContext(); |
| 1569 | } |
| 1570 | |
| 1571 | // if the element is already focused, just return. Note that this happens |
| 1572 | // after the frame check above so that we compare the element that will be |
| 1573 | // focused rather than the frame it is in. |
| 1574 | if (!newWindow || (newBrowsingContext == GetFocusedBrowsingContext() && |
| 1575 | elementToFocus == mFocusedElement)) { |
| 1576 | return Nothing(); |
| 1577 | } |
| 1578 | |
| 1579 | 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" , 1579); AnnotateMozCrashReason("MOZ_ASSERT" "(" "newBrowsingContext" ")"); do { *((volatile int*)__null) = 1579; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1580 | |
| 1581 | BrowsingContext* browsingContextToFocus = newBrowsingContext; |
| 1582 | if (RefPtr<nsFrameLoaderOwner> flo = do_QueryObject(elementToFocus)) { |
| 1583 | // Only look at pre-existing browsing contexts. If this function is |
| 1584 | // called during reflow, calling GetBrowsingContext() could cause frame |
| 1585 | // loader initialization at a time when it isn't safe. |
| 1586 | if (BrowsingContext* bc = flo->GetExtantBrowsingContext()) { |
| 1587 | // If focus is already in the subtree rooted at bc, return early |
| 1588 | // to match the single-process focus semantics. Otherwise, we'd |
| 1589 | // blur and immediately refocus whatever is focused. |
| 1590 | BrowsingContext* walk = focusedBrowsingContext; |
| 1591 | while (walk) { |
| 1592 | if (walk == bc) { |
| 1593 | return Nothing(); |
| 1594 | } |
| 1595 | walk = walk->GetParent(); |
| 1596 | } |
| 1597 | browsingContextToFocus = bc; |
| 1598 | } |
| 1599 | } |
| 1600 | |
| 1601 | // don't allow focus to be placed in docshells or descendants of docshells |
| 1602 | // that are being destroyed. Also, ensure that the page hasn't been |
| 1603 | // unloaded. The prevents content from being refocused during an unload event. |
| 1604 | nsCOMPtr<nsIDocShell> newDocShell = newWindow->GetDocShell(); |
| 1605 | nsCOMPtr<nsIDocShell> docShell = newDocShell; |
| 1606 | while (docShell) { |
| 1607 | bool inUnload; |
| 1608 | docShell->GetIsInUnload(&inUnload); |
| 1609 | if (inUnload) { |
| 1610 | return Nothing(); |
| 1611 | } |
| 1612 | |
| 1613 | bool beingDestroyed; |
| 1614 | docShell->IsBeingDestroyed(&beingDestroyed); |
| 1615 | if (beingDestroyed) { |
| 1616 | return Nothing(); |
| 1617 | } |
| 1618 | |
| 1619 | BrowsingContext* bc = docShell->GetBrowsingContext(); |
| 1620 | |
| 1621 | nsCOMPtr<nsIDocShellTreeItem> parentDsti; |
| 1622 | docShell->GetInProcessParent(getter_AddRefs(parentDsti)); |
| 1623 | docShell = do_QueryInterface(parentDsti); |
| 1624 | if (!docShell && !XRE_IsParentProcess()) { |
| 1625 | // We don't have an in-process parent, but let's see if we have |
| 1626 | // an in-process ancestor or if an out-of-process ancestor |
| 1627 | // is discarded. |
| 1628 | do { |
| 1629 | bc = bc->GetParent(); |
| 1630 | if (bc && bc->IsDiscarded()) { |
| 1631 | return Nothing(); |
| 1632 | } |
| 1633 | } while (bc && !bc->IsInProcess()); |
| 1634 | if (bc) { |
| 1635 | docShell = bc->GetDocShell(); |
| 1636 | } else { |
| 1637 | docShell = nullptr; |
| 1638 | } |
| 1639 | } |
| 1640 | } |
| 1641 | |
| 1642 | bool focusMovesToDifferentBC = |
| 1643 | (focusedBrowsingContext != browsingContextToFocus); |
| 1644 | |
| 1645 | if (focusedBrowsingContext && focusMovesToDifferentBC && |
| 1646 | nsContentUtils::IsHandlingKeyBoardEvent() && |
| 1647 | !nsContentUtils::LegacyIsCallerChromeOrNativeCode()) { |
| 1648 | 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" , 1649); AnnotateMozCrashReason("MOZ_ASSERT" "(" "browsingContextToFocus" ") (" "BrowsingContext to focus should be non-null." ")"); do { *((volatile int*)__null) = 1649; __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 1649 | "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" , 1649); AnnotateMozCrashReason("MOZ_ASSERT" "(" "browsingContextToFocus" ") (" "BrowsingContext to focus should be non-null." ")"); do { *((volatile int*)__null) = 1649; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 1650 | |
| 1651 | nsIPrincipal* focusedPrincipal = nullptr; |
| 1652 | nsIPrincipal* newPrincipal = nullptr; |
| 1653 | |
| 1654 | if (XRE_IsParentProcess()) { |
| 1655 | if (WindowGlobalParent* focusedWindowGlobalParent = |
| 1656 | focusedBrowsingContext->Canonical()->GetCurrentWindowGlobal()) { |
| 1657 | focusedPrincipal = focusedWindowGlobalParent->DocumentPrincipal(); |
| 1658 | } |
| 1659 | |
| 1660 | if (WindowGlobalParent* newWindowGlobalParent = |
| 1661 | browsingContextToFocus->Canonical()->GetCurrentWindowGlobal()) { |
| 1662 | newPrincipal = newWindowGlobalParent->DocumentPrincipal(); |
| 1663 | } |
| 1664 | } else if (focusedBrowsingContext->IsInProcess() && |
| 1665 | browsingContextToFocus->IsInProcess()) { |
| 1666 | nsCOMPtr<nsIScriptObjectPrincipal> focused = |
| 1667 | do_QueryInterface(focusedBrowsingContext->GetDOMWindow()); |
| 1668 | nsCOMPtr<nsIScriptObjectPrincipal> newFocus = |
| 1669 | do_QueryInterface(browsingContextToFocus->GetDOMWindow()); |
| 1670 | 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" , 1671); AnnotateMozCrashReason("MOZ_ASSERT" "(" "focused && newFocus" ") (" "BrowsingContext should always have a window here." ")" ); do { *((volatile int*)__null) = 1671; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1671 | "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" , 1671); AnnotateMozCrashReason("MOZ_ASSERT" "(" "focused && newFocus" ") (" "BrowsingContext should always have a window here." ")" ); do { *((volatile int*)__null) = 1671; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1672 | focusedPrincipal = focused->GetPrincipal(); |
| 1673 | newPrincipal = newFocus->GetPrincipal(); |
| 1674 | } |
| 1675 | |
| 1676 | if (!focusedPrincipal || !newPrincipal) { |
| 1677 | return Nothing(); |
| 1678 | } |
| 1679 | |
| 1680 | if (!focusedPrincipal->Subsumes(newPrincipal)) { |
| 1681 | 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" , 1681); |
| 1682 | return Nothing(); |
| 1683 | } |
| 1684 | } |
| 1685 | |
| 1686 | // to check if the new element is in the active window, compare the |
| 1687 | // new root docshell for the new element with the active window's docshell. |
| 1688 | RefPtr<BrowsingContext> newRootBrowsingContext = nullptr; |
| 1689 | bool isElementInActiveWindow = false; |
| 1690 | if (XRE_IsParentProcess()) { |
| 1691 | nsCOMPtr<nsPIDOMWindowOuter> newRootWindow = nullptr; |
| 1692 | nsCOMPtr<nsIDocShellTreeItem> dsti = newWindow->GetDocShell(); |
| 1693 | if (dsti) { |
| 1694 | nsCOMPtr<nsIDocShellTreeItem> root; |
| 1695 | dsti->GetInProcessRootTreeItem(getter_AddRefs(root)); |
| 1696 | newRootWindow = root ? root->GetWindow() : nullptr; |
| 1697 | |
| 1698 | isElementInActiveWindow = |
| 1699 | (mActiveWindow && newRootWindow == mActiveWindow); |
| 1700 | } |
| 1701 | if (newRootWindow) { |
| 1702 | newRootBrowsingContext = newRootWindow->GetBrowsingContext(); |
| 1703 | } |
| 1704 | } else { |
| 1705 | // XXX This is wrong for `<iframe mozbrowser>` and for XUL |
| 1706 | // `<browser remote="true">`. See: |
| 1707 | // https://searchfox.org/mozilla-central/rev/8a63fc190b39ed6951abb4aef4a56487a43962bc/dom/base/nsFrameLoader.cpp#229-232 |
| 1708 | newRootBrowsingContext = newBrowsingContext->Top(); |
| 1709 | // to check if the new element is in the active window, compare the |
| 1710 | // new root docshell for the new element with the active window's docshell. |
| 1711 | isElementInActiveWindow = |
| 1712 | (GetActiveBrowsingContext() == newRootBrowsingContext); |
| 1713 | } |
| 1714 | |
| 1715 | // Exit fullscreen if a website focuses another window |
| 1716 | if (StaticPrefs::full_screen_api_exit_on_windowRaise() && |
| 1717 | !isElementInActiveWindow && (aFlags & FLAG_RAISE)) { |
| 1718 | if (XRE_IsParentProcess()) { |
| 1719 | if (Document* doc = mActiveWindow ? mActiveWindow->GetDoc() : nullptr) { |
| 1720 | Document::ClearPendingFullscreenRequests(doc); |
| 1721 | if (doc->GetFullscreenElement()) { |
| 1722 | LogWarningFullscreenWindowRaise(mFocusedElement); |
| 1723 | Document::AsyncExitFullscreen(doc); |
| 1724 | } |
| 1725 | } |
| 1726 | } else { |
| 1727 | BrowsingContext* activeBrowsingContext = GetActiveBrowsingContext(); |
| 1728 | if (activeBrowsingContext) { |
| 1729 | nsIDocShell* shell = activeBrowsingContext->GetDocShell(); |
| 1730 | if (shell) { |
| 1731 | if (Document* doc = shell->GetDocument()) { |
| 1732 | Document::ClearPendingFullscreenRequests(doc); |
| 1733 | if (doc->GetFullscreenElement()) { |
| 1734 | Document::AsyncExitFullscreen(doc); |
| 1735 | } |
| 1736 | } |
| 1737 | } else { |
| 1738 | mozilla::dom::ContentChild* contentChild = |
| 1739 | mozilla::dom::ContentChild::GetSingleton(); |
| 1740 | 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" , 1740); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 1740; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1741 | contentChild->SendMaybeExitFullscreen(activeBrowsingContext); |
| 1742 | } |
| 1743 | } |
| 1744 | } |
| 1745 | } |
| 1746 | |
| 1747 | // if the FLAG_NOSWITCHFRAME flag is used, only allow the focus to be |
| 1748 | // shifted away from the current element if the new shell to focus is |
| 1749 | // the same or an ancestor shell of the currently focused shell. |
| 1750 | bool allowFrameSwitch = !(aFlags & FLAG_NOSWITCHFRAME) || |
| 1751 | IsSameOrAncestor(newWindow, focusedBrowsingContext); |
| 1752 | |
| 1753 | // if the element is in the active window, frame switching is allowed and |
| 1754 | // the content is in a visible window, fire blur and focus events. |
| 1755 | bool sendFocusEvent = |
| 1756 | isElementInActiveWindow && allowFrameSwitch && IsWindowVisible(newWindow); |
| 1757 | |
| 1758 | // Don't allow to steal the focus from chrome nodes if the caller cannot |
| 1759 | // access them. |
| 1760 | if (sendFocusEvent && mFocusedElement && |
| 1761 | mFocusedElement->OwnerDoc() != aNewContent->OwnerDoc() && |
| 1762 | mFocusedElement->NodePrincipal()->IsSystemPrincipal() && |
| 1763 | !nsContentUtils::LegacyIsCallerNativeCode() && |
| 1764 | !nsContentUtils::CanCallerAccess(mFocusedElement)) { |
| 1765 | sendFocusEvent = false; |
| 1766 | } |
| 1767 | |
| 1768 | 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); }; |
| 1769 | 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) |
| 1770 | 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) |
| 1771 | 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); |
| 1772 | const uint64_t actionId = GenerateFocusActionId(); |
| 1773 | 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) |
| 1774 | (" 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) |
| 1775 | "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) |
| 1776 | 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) |
| 1777 | 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); |
| 1778 | |
| 1779 | if (sendFocusEvent) { |
| 1780 | Maybe<BlurredElementInfo> blurredInfo; |
| 1781 | if (mFocusedElement) { |
| 1782 | blurredInfo.emplace(*mFocusedElement); |
| 1783 | } |
| 1784 | // return if blurring fails or the focus changes during the blur |
| 1785 | if (focusedBrowsingContext) { |
| 1786 | // find the common ancestor of the currently focused window and the new |
| 1787 | // window. The ancestor will need to have its currently focused node |
| 1788 | // cleared once the document has been blurred. Otherwise, we'll be in a |
| 1789 | // state where a document is blurred yet the chain of windows above it |
| 1790 | // still points to that document. |
| 1791 | // For instance, in the following frame tree: |
| 1792 | // A |
| 1793 | // B C |
| 1794 | // D |
| 1795 | // D is focused and we want to focus C. Once D has been blurred, we need |
| 1796 | // to clear out the focus in A, otherwise A would still maintain that B |
| 1797 | // was focused, and B that D was focused. |
| 1798 | RefPtr<BrowsingContext> commonAncestor = |
| 1799 | focusMovesToDifferentBC |
| 1800 | ? GetCommonAncestor(newWindow, focusedBrowsingContext) |
| 1801 | : nullptr; |
| 1802 | |
| 1803 | const bool needToClearFocusedElement = [&] { |
| 1804 | if (focusedBrowsingContext->IsChrome()) { |
| 1805 | // Always reset focused element if focus is currently in chrome |
| 1806 | // window, unless we're moving focus to a popup. |
| 1807 | return !IsEmeddededInNoautofocusPopup(*browsingContextToFocus); |
| 1808 | } |
| 1809 | if (focusedBrowsingContext->Top() != browsingContextToFocus->Top()) { |
| 1810 | // Only reset focused element if focus moves within the same top-level |
| 1811 | // content window. |
| 1812 | return false; |
| 1813 | } |
| 1814 | // XXX for the case that we try to focus an |
| 1815 | // already-focused-remote-frame, we would still send blur and focus |
| 1816 | // IPC to it, but they will not generate blur or focus event, we don't |
| 1817 | // want to reset activeElement on the remote frame. |
| 1818 | return focusMovesToDifferentBC || focusedBrowsingContext->IsInProcess(); |
| 1819 | }(); |
| 1820 | |
| 1821 | const bool remainActive = |
| 1822 | focusMovesToDifferentBC && |
| 1823 | IsEmeddededInNoautofocusPopup(*browsingContextToFocus); |
| 1824 | |
| 1825 | // TODO: MOZ_KnownLive is required due to bug 1770680 |
| 1826 | if (!Blur(MOZ_KnownLive(needToClearFocusedElement(needToClearFocusedElement ? focusedBrowsingContext.get() : nullptr ) |
| 1827 | ? focusedBrowsingContext.get()(needToClearFocusedElement ? focusedBrowsingContext.get() : nullptr ) |
| 1828 | : nullptr)(needToClearFocusedElement ? focusedBrowsingContext.get() : nullptr ), |
| 1829 | commonAncestor, focusMovesToDifferentBC, aAdjustWidget, |
| 1830 | remainActive, actionId, elementToFocus)) { |
| 1831 | return Some(actionId); |
| 1832 | } |
| 1833 | } |
| 1834 | |
| 1835 | Focus(newWindow, elementToFocus, aFlags, focusMovesToDifferentBC, |
| 1836 | aFocusChanged, false, aAdjustWidget, actionId, blurredInfo); |
| 1837 | } else { |
| 1838 | // otherwise, for inactive windows and when the caller cannot steal the |
| 1839 | // focus, update the node in the window, and raise the window if desired. |
| 1840 | if (allowFrameSwitch) { |
| 1841 | AdjustWindowFocus(newBrowsingContext, true, IsWindowVisible(newWindow), |
| 1842 | actionId, false /* aShouldClearAncestorFocus */, |
| 1843 | nullptr /* aAncestorBrowsingContextToFocus */); |
| 1844 | } |
| 1845 | |
| 1846 | // set the focus node and method as needed |
| 1847 | uint32_t focusMethod = |
| 1848 | aFocusChanged ? aFlags & METHODANDRING_MASK |
| 1849 | : newWindow->GetFocusMethod() | |
| 1850 | (aFlags & (FLAG_SHOWRING | FLAG_NOSHOWRING)); |
| 1851 | newWindow->SetFocusedElement(elementToFocus, focusMethod); |
| 1852 | if (aFocusChanged) { |
| 1853 | if (nsCOMPtr<nsIDocShell> docShell = newWindow->GetDocShell()) { |
| 1854 | RefPtr<PresShell> presShell = docShell->GetPresShell(); |
| 1855 | if (presShell && presShell->DidInitialize()) { |
| 1856 | ScrollIntoView(presShell, elementToFocus, aFlags); |
| 1857 | } |
| 1858 | } |
| 1859 | } |
| 1860 | |
| 1861 | // update the commands even when inactive so that the attributes for that |
| 1862 | // window are up to date. |
| 1863 | if (allowFrameSwitch) { |
| 1864 | newWindow->UpdateCommands(u"focus"_ns); |
| 1865 | } |
| 1866 | |
| 1867 | if (aFlags & FLAG_RAISE) { |
| 1868 | if (newRootBrowsingContext) { |
| 1869 | if (XRE_IsParentProcess() || newRootBrowsingContext->IsInProcess()) { |
| 1870 | nsCOMPtr<nsPIDOMWindowOuter> outerWindow = |
| 1871 | newRootBrowsingContext->GetDOMWindow(); |
| 1872 | RaiseWindow(outerWindow, |
| 1873 | aFlags & FLAG_NONSYSTEMCALLER ? CallerType::NonSystem |
| 1874 | : CallerType::System, |
| 1875 | actionId); |
| 1876 | } else { |
| 1877 | mozilla::dom::ContentChild* contentChild = |
| 1878 | mozilla::dom::ContentChild::GetSingleton(); |
| 1879 | 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" , 1879); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 1879; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1880 | contentChild->SendRaiseWindow(newRootBrowsingContext, |
| 1881 | aFlags & FLAG_NONSYSTEMCALLER |
| 1882 | ? CallerType::NonSystem |
| 1883 | : CallerType::System, |
| 1884 | actionId); |
| 1885 | } |
| 1886 | } |
| 1887 | } |
| 1888 | } |
| 1889 | return Some(actionId); |
| 1890 | } |
| 1891 | |
| 1892 | static BrowsingContext* GetParentIgnoreChromeBoundary(BrowsingContext* aBC) { |
| 1893 | // Chrome BrowsingContexts are only available in the parent process, so if |
| 1894 | // we're in a content process, we only worry about the context tree. |
| 1895 | if (XRE_IsParentProcess()) { |
| 1896 | return aBC->Canonical()->GetParentCrossChromeBoundary(); |
| 1897 | } |
| 1898 | return aBC->GetParent(); |
| 1899 | } |
| 1900 | |
| 1901 | bool nsFocusManager::IsSameOrAncestor(BrowsingContext* aPossibleAncestor, |
| 1902 | BrowsingContext* aContext) const { |
| 1903 | if (!aPossibleAncestor) { |
| 1904 | return false; |
| 1905 | } |
| 1906 | |
| 1907 | for (BrowsingContext* bc = aContext; bc; |
| 1908 | bc = GetParentIgnoreChromeBoundary(bc)) { |
| 1909 | if (bc == aPossibleAncestor) { |
| 1910 | return true; |
| 1911 | } |
| 1912 | } |
| 1913 | |
| 1914 | return false; |
| 1915 | } |
| 1916 | |
| 1917 | bool nsFocusManager::IsSameOrAncestor(nsPIDOMWindowOuter* aPossibleAncestor, |
| 1918 | nsPIDOMWindowOuter* aWindow) const { |
| 1919 | if (aWindow && aPossibleAncestor) { |
| 1920 | return IsSameOrAncestor(aPossibleAncestor->GetBrowsingContext(), |
| 1921 | aWindow->GetBrowsingContext()); |
| 1922 | } |
| 1923 | return false; |
| 1924 | } |
| 1925 | |
| 1926 | bool nsFocusManager::IsSameOrAncestor(nsPIDOMWindowOuter* aPossibleAncestor, |
| 1927 | BrowsingContext* aContext) const { |
| 1928 | if (aPossibleAncestor) { |
| 1929 | return IsSameOrAncestor(aPossibleAncestor->GetBrowsingContext(), aContext); |
| 1930 | } |
| 1931 | return false; |
| 1932 | } |
| 1933 | |
| 1934 | bool nsFocusManager::IsSameOrAncestor(BrowsingContext* aPossibleAncestor, |
| 1935 | nsPIDOMWindowOuter* aWindow) const { |
| 1936 | if (aWindow) { |
| 1937 | return IsSameOrAncestor(aPossibleAncestor, aWindow->GetBrowsingContext()); |
| 1938 | } |
| 1939 | return false; |
| 1940 | } |
| 1941 | |
| 1942 | mozilla::dom::BrowsingContext* nsFocusManager::GetCommonAncestor( |
| 1943 | nsPIDOMWindowOuter* aWindow, mozilla::dom::BrowsingContext* aContext) { |
| 1944 | 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" , 1944); return nullptr; } } while (false); |
| 1945 | |
| 1946 | if (XRE_IsParentProcess()) { |
| 1947 | nsCOMPtr<nsIDocShellTreeItem> dsti1 = aWindow->GetDocShell(); |
| 1948 | 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" , 1948); return nullptr; } } while (false); |
| 1949 | |
| 1950 | nsCOMPtr<nsIDocShellTreeItem> dsti2 = aContext->GetDocShell(); |
| 1951 | 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" , 1951); return nullptr; } } while (false); |
| 1952 | |
| 1953 | AutoTArray<nsIDocShellTreeItem*, 30> parents1, parents2; |
| 1954 | do { |
| 1955 | parents1.AppendElement(dsti1); |
| 1956 | nsCOMPtr<nsIDocShellTreeItem> parentDsti1; |
| 1957 | dsti1->GetInProcessParent(getter_AddRefs(parentDsti1)); |
| 1958 | dsti1.swap(parentDsti1); |
| 1959 | } while (dsti1); |
| 1960 | do { |
| 1961 | parents2.AppendElement(dsti2); |
| 1962 | nsCOMPtr<nsIDocShellTreeItem> parentDsti2; |
| 1963 | dsti2->GetInProcessParent(getter_AddRefs(parentDsti2)); |
| 1964 | dsti2.swap(parentDsti2); |
| 1965 | } while (dsti2); |
| 1966 | |
| 1967 | uint32_t pos1 = parents1.Length(); |
| 1968 | uint32_t pos2 = parents2.Length(); |
| 1969 | nsIDocShellTreeItem* parent = nullptr; |
| 1970 | uint32_t len; |
| 1971 | for (len = std::min(pos1, pos2); len > 0; --len) { |
| 1972 | nsIDocShellTreeItem* child1 = parents1.ElementAt(--pos1); |
| 1973 | nsIDocShellTreeItem* child2 = parents2.ElementAt(--pos2); |
| 1974 | if (child1 != child2) { |
| 1975 | break; |
| 1976 | } |
| 1977 | parent = child1; |
| 1978 | } |
| 1979 | |
| 1980 | return parent ? parent->GetBrowsingContext() : nullptr; |
| 1981 | } |
| 1982 | |
| 1983 | BrowsingContext* bc1 = aWindow->GetBrowsingContext(); |
| 1984 | 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" , 1984); return nullptr; } } while (false); |
| 1985 | |
| 1986 | BrowsingContext* bc2 = aContext; |
| 1987 | |
| 1988 | AutoTArray<BrowsingContext*, 30> parents1, parents2; |
| 1989 | do { |
| 1990 | parents1.AppendElement(bc1); |
| 1991 | bc1 = bc1->GetParent(); |
| 1992 | } while (bc1); |
| 1993 | do { |
| 1994 | parents2.AppendElement(bc2); |
| 1995 | bc2 = bc2->GetParent(); |
| 1996 | } while (bc2); |
| 1997 | |
| 1998 | uint32_t pos1 = parents1.Length(); |
| 1999 | uint32_t pos2 = parents2.Length(); |
| 2000 | BrowsingContext* parent = nullptr; |
| 2001 | uint32_t len; |
| 2002 | for (len = std::min(pos1, pos2); len > 0; --len) { |
| 2003 | BrowsingContext* child1 = parents1.ElementAt(--pos1); |
| 2004 | BrowsingContext* child2 = parents2.ElementAt(--pos2); |
| 2005 | if (child1 != child2) { |
| 2006 | break; |
| 2007 | } |
| 2008 | parent = child1; |
| 2009 | } |
| 2010 | |
| 2011 | return parent; |
| 2012 | } |
| 2013 | |
| 2014 | bool nsFocusManager::AdjustInProcessWindowFocus( |
| 2015 | BrowsingContext* aBrowsingContext, bool aCheckPermission, bool aIsVisible, |
| 2016 | uint64_t aActionId, bool aShouldClearAncestorFocus, |
| 2017 | BrowsingContext* aAncestorBrowsingContextToFocus) { |
| 2018 | 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" , 2018); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aShouldClearAncestorFocus" ")"); do { *((volatile int*)__null) = 2018; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 2019 | if (ActionIdComparableAndLower(aActionId, |
| 2020 | mActionIdForFocusedBrowsingContextInContent)) { |
| 2021 | 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) |
| 2022 | ("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) |
| 2023 | "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) |
| 2024 | 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); |
| 2025 | return false; |
| 2026 | } |
| 2027 | |
| 2028 | BrowsingContext* bc = aBrowsingContext; |
| 2029 | bool needToNotifyOtherProcess = false; |
| 2030 | while (bc) { |
| 2031 | // get the containing <iframe> or equivalent element so that it can be |
| 2032 | // focused below. |
| 2033 | nsCOMPtr<Element> frameElement = bc->GetEmbedderElement(); |
| 2034 | BrowsingContext* parent = bc->GetParent(); |
| 2035 | if (!parent && XRE_IsParentProcess()) { |
| 2036 | CanonicalBrowsingContext* canonical = bc->Canonical(); |
| 2037 | RefPtr<WindowGlobalParent> embedder = |
| 2038 | canonical->GetEmbedderWindowGlobal(); |
| 2039 | if (embedder) { |
| 2040 | parent = embedder->BrowsingContext(); |
| 2041 | } |
| 2042 | } |
| 2043 | bc = parent; |
| 2044 | if (!bc) { |
| 2045 | break; |
| 2046 | } |
| 2047 | if (!frameElement && XRE_IsContentProcess()) { |
| 2048 | needToNotifyOtherProcess = true; |
| 2049 | continue; |
| 2050 | } |
| 2051 | |
| 2052 | nsCOMPtr<nsPIDOMWindowOuter> window = bc->GetDOMWindow(); |
| 2053 | 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" , 2053); AnnotateMozCrashReason("MOZ_ASSERT" "(" "window" ")" ); do { *((volatile int*)__null) = 2053; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2054 | // if the parent window is visible but the original window was not, then we |
| 2055 | // have likely moved up and out from a hidden tab to the browser window, or |
| 2056 | // a similar such arrangement. Stop adjusting the current nodes. |
| 2057 | if (IsWindowVisible(window) != aIsVisible) { |
| 2058 | break; |
| 2059 | } |
| 2060 | |
| 2061 | // When aCheckPermission is true, we should check whether the caller can |
| 2062 | // access the window or not. If it cannot access, we should stop the |
| 2063 | // adjusting. |
| 2064 | if (aCheckPermission && !nsContentUtils::LegacyIsCallerNativeCode() && |
| 2065 | !nsContentUtils::CanCallerAccess(window->GetCurrentInnerWindow())) { |
| 2066 | break; |
| 2067 | } |
| 2068 | |
| 2069 | if (aShouldClearAncestorFocus) { |
| 2070 | // This is the BrowsingContext that receives the focus, no need to clear |
| 2071 | // its focused element and the rest of the ancestors. |
| 2072 | if (window->GetBrowsingContext() == aAncestorBrowsingContextToFocus) { |
| 2073 | break; |
| 2074 | } |
| 2075 | |
| 2076 | window->SetFocusedElement(nullptr); |
| 2077 | continue; |
| 2078 | } |
| 2079 | |
| 2080 | if (frameElement != window->GetFocusedElement()) { |
| 2081 | window->SetFocusedElement(frameElement); |
| 2082 | |
| 2083 | RefPtr<nsFrameLoaderOwner> loaderOwner = do_QueryObject(frameElement); |
| 2084 | 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" , 2084); AnnotateMozCrashReason("MOZ_ASSERT" "(" "loaderOwner" ")"); do { *((volatile int*)__null) = 2084; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2085 | RefPtr<nsFrameLoader> loader = loaderOwner->GetFrameLoader(); |
| 2086 | if (loader && loader->IsRemoteFrame() && |
| 2087 | GetFocusedBrowsingContext() == bc) { |
| 2088 | Blur(nullptr, nullptr, true, true, false, aActionId); |
| 2089 | } |
| 2090 | } |
| 2091 | } |
| 2092 | return needToNotifyOtherProcess; |
| 2093 | } |
| 2094 | |
| 2095 | void nsFocusManager::AdjustWindowFocus( |
| 2096 | BrowsingContext* aBrowsingContext, bool aCheckPermission, bool aIsVisible, |
| 2097 | uint64_t aActionId, bool aShouldClearAncestorFocus, |
| 2098 | BrowsingContext* aAncestorBrowsingContextToFocus) { |
| 2099 | 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" , 2099); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aShouldClearAncestorFocus" ")"); do { *((volatile int*)__null) = 2099; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 2100 | if (AdjustInProcessWindowFocus(aBrowsingContext, aCheckPermission, aIsVisible, |
| 2101 | aActionId, aShouldClearAncestorFocus, |
| 2102 | aAncestorBrowsingContextToFocus)) { |
| 2103 | // Some ancestors of aBrowsingContext isn't in this process, so notify other |
| 2104 | // processes to adjust their focused element. |
| 2105 | mozilla::dom::ContentChild* contentChild = |
| 2106 | mozilla::dom::ContentChild::GetSingleton(); |
| 2107 | 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" , 2107); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 2107; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2108 | contentChild->SendAdjustWindowFocus(aBrowsingContext, aIsVisible, aActionId, |
| 2109 | aShouldClearAncestorFocus, |
| 2110 | aAncestorBrowsingContextToFocus); |
| 2111 | } |
| 2112 | } |
| 2113 | |
| 2114 | bool nsFocusManager::IsWindowVisible(nsPIDOMWindowOuter* aWindow) { |
| 2115 | if (!aWindow || aWindow->IsFrozen()) { |
| 2116 | return false; |
| 2117 | } |
| 2118 | |
| 2119 | // Check if the inner window is frozen as well. This can happen when a focus |
| 2120 | // change occurs while restoring a previous page. |
| 2121 | nsPIDOMWindowInner* innerWindow = aWindow->GetCurrentInnerWindow(); |
| 2122 | if (!innerWindow || innerWindow->IsFrozen()) { |
| 2123 | return false; |
| 2124 | } |
| 2125 | |
| 2126 | nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell(); |
| 2127 | nsCOMPtr<nsIBaseWindow> baseWin(do_QueryInterface(docShell)); |
| 2128 | if (!baseWin) { |
| 2129 | return false; |
| 2130 | } |
| 2131 | |
| 2132 | bool visible = false; |
| 2133 | baseWin->GetVisibility(&visible); |
| 2134 | return visible; |
| 2135 | } |
| 2136 | |
| 2137 | bool nsFocusManager::IsNonFocusableRoot(nsIContent* aContent) { |
| 2138 | 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" , 2138); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent" ") (" "aContent must not be NULL" ")"); do { *((volatile int*)__null ) = 2138; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 2139 | 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" , 2139); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent->IsInComposedDoc()" ") (" "aContent must be in a document" ")"); do { *((volatile int*)__null) = 2139; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2140 | |
| 2141 | // If the uncomposed document of aContent is in designMode, the root element |
| 2142 | // is not focusable. |
| 2143 | // NOTE: Most elements whose uncomposed document is in design mode are not |
| 2144 | // focusable, just the document is focusable. However, if it's in a |
| 2145 | // shadow tree, it may be focus able even if the shadow host is in |
| 2146 | // design mode. |
| 2147 | // Also, if aContent is not editable and it's not in designMode, it's not |
| 2148 | // focusable. |
| 2149 | // And in userfocusignored context nothing is focusable. |
| 2150 | Document* doc = aContent->GetComposedDoc(); |
| 2151 | 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" , 2151); MOZ_PretendNoReturn(); } } while (0); |
| 2152 | return aContent == doc->GetRootElement() && |
| 2153 | (aContent->IsInDesignMode() || !aContent->IsEditable()); |
| 2154 | } |
| 2155 | |
| 2156 | Element* nsFocusManager::FlushAndCheckIfFocusable(Element* aElement, |
| 2157 | uint32_t aFlags) { |
| 2158 | if (!aElement) { |
| 2159 | return nullptr; |
| 2160 | } |
| 2161 | |
| 2162 | nsCOMPtr<Document> doc = aElement->GetComposedDoc(); |
| 2163 | // can't focus elements that are not in documents |
| 2164 | if (!doc) { |
| 2165 | 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); } |
| 2166 | return nullptr; |
| 2167 | } |
| 2168 | |
| 2169 | // Make sure that our frames are up to date while ensuring the presshell is |
| 2170 | // also initialized in case we come from a script calling focus() early. |
| 2171 | mEventHandlingNeedsFlush = false; |
| 2172 | doc->FlushPendingNotifications(FlushType::EnsurePresShellInitAndFrames); |
| 2173 | |
| 2174 | PresShell* presShell = doc->GetPresShell(); |
| 2175 | if (!presShell) { |
| 2176 | return nullptr; |
| 2177 | } |
| 2178 | |
| 2179 | // If this is an iframe that doesn't have an in-process subdocument, it is |
| 2180 | // either an OOP iframe or an in-process iframe without lazy about:blank |
| 2181 | // creation having taken place. In the OOP case, iframe is always focusable. |
| 2182 | // In the in-process case, create the initial about:blank for in-process |
| 2183 | // BrowsingContexts in order to have the `GetSubDocumentFor` call after this |
| 2184 | // block return something. |
| 2185 | // |
| 2186 | // TODO(emilio): This block can probably go after bug 543435 lands. |
| 2187 | if (RefPtr<nsFrameLoaderOwner> flo = do_QueryObject(aElement)) { |
| 2188 | if (!aElement->IsXULElement()) { |
| 2189 | // Only look at pre-existing browsing contexts. If this function is |
| 2190 | // called during reflow, calling GetBrowsingContext() could cause frame |
| 2191 | // loader initialization at a time when it isn't safe. |
| 2192 | if (BrowsingContext* bc = flo->GetExtantBrowsingContext()) { |
| 2193 | // This call may create a contentViewer-created about:blank. |
| 2194 | // That's intentional, so we can move focus there. |
| 2195 | Unused << bc->GetDocument(); |
| 2196 | } |
| 2197 | } |
| 2198 | } |
| 2199 | |
| 2200 | return GetTheFocusableArea(aElement, aFlags); |
| 2201 | } |
| 2202 | |
| 2203 | bool nsFocusManager::Blur(BrowsingContext* aBrowsingContextToClear, |
| 2204 | BrowsingContext* aAncestorBrowsingContextToFocus, |
| 2205 | bool aIsLeavingDocument, bool aAdjustWidget, |
| 2206 | bool aRemainActive, uint64_t aActionId, |
| 2207 | Element* aElementToFocus) { |
| 2208 | if (XRE_IsParentProcess()) { |
| 2209 | return BlurImpl(aBrowsingContextToClear, aAncestorBrowsingContextToFocus, |
| 2210 | aIsLeavingDocument, aAdjustWidget, aRemainActive, |
| 2211 | aElementToFocus, aActionId); |
| 2212 | } |
| 2213 | mozilla::dom::ContentChild* contentChild = |
| 2214 | mozilla::dom::ContentChild::GetSingleton(); |
| 2215 | 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" , 2215); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 2215; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2216 | bool windowToClearHandled = false; |
| 2217 | bool ancestorWindowToFocusHandled = false; |
| 2218 | |
| 2219 | RefPtr<BrowsingContext> focusedBrowsingContext = GetFocusedBrowsingContext(); |
| 2220 | if (focusedBrowsingContext && focusedBrowsingContext->IsDiscarded()) { |
| 2221 | focusedBrowsingContext = nullptr; |
| 2222 | } |
| 2223 | if (!focusedBrowsingContext) { |
| 2224 | mFocusedElement = nullptr; |
| 2225 | return true; |
| 2226 | } |
| 2227 | if (aBrowsingContextToClear && aBrowsingContextToClear->IsDiscarded()) { |
| 2228 | aBrowsingContextToClear = nullptr; |
| 2229 | } |
| 2230 | if (aAncestorBrowsingContextToFocus && |
| 2231 | aAncestorBrowsingContextToFocus->IsDiscarded()) { |
| 2232 | aAncestorBrowsingContextToFocus = nullptr; |
| 2233 | } |
| 2234 | // XXX should more early returns from BlurImpl be hoisted here to avoid |
| 2235 | // processing aBrowsingContextToClear and aAncestorBrowsingContextToFocus in |
| 2236 | // other processes when BlurImpl returns early in this process? Or should the |
| 2237 | // IPC messages for those be sent by BlurImpl itself, in which case they could |
| 2238 | // arrive late? |
| 2239 | if (focusedBrowsingContext->IsInProcess()) { |
| 2240 | if (aBrowsingContextToClear && !aBrowsingContextToClear->IsInProcess()) { |
| 2241 | 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" , 2245); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" ") (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")"); do { *((volatile int*)__null) = 2245 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2242 | !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" , 2245); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" ") (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")"); do { *((volatile int*)__null) = 2245 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2243 | "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" , 2245); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" ") (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")"); do { *((volatile int*)__null) = 2245 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2244 | "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" , 2245); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" ") (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")"); do { *((volatile int*)__null) = 2245 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2245 | "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" , 2245); AnnotateMozCrashReason("MOZ_RELEASE_ASSERT" "(" "!(aAncestorBrowsingContextToFocus && !aAncestorBrowsingContextToFocus->IsInProcess())" ") (" "Both aBrowsingContextToClear and " "aAncestorBrowsingContextToFocus are " "out-of-process." ")"); do { *((volatile int*)__null) = 2245 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2246 | contentChild->SendSetFocusedElement(aBrowsingContextToClear, false); |
| 2247 | } |
| 2248 | if (aAncestorBrowsingContextToFocus && |
| 2249 | !aAncestorBrowsingContextToFocus->IsInProcess()) { |
| 2250 | contentChild->SendSetFocusedElement(aAncestorBrowsingContextToFocus, |
| 2251 | true); |
| 2252 | } |
| 2253 | return BlurImpl(aBrowsingContextToClear, aAncestorBrowsingContextToFocus, |
| 2254 | aIsLeavingDocument, aAdjustWidget, aRemainActive, |
| 2255 | aElementToFocus, aActionId); |
| 2256 | } |
| 2257 | if (aBrowsingContextToClear && aBrowsingContextToClear->IsInProcess()) { |
| 2258 | nsPIDOMWindowOuter* windowToClear = aBrowsingContextToClear->GetDOMWindow(); |
| 2259 | 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" , 2259); AnnotateMozCrashReason("MOZ_ASSERT" "(" "windowToClear" ")"); do { *((volatile int*)__null) = 2259; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2260 | windowToClear->SetFocusedElement(nullptr); |
| 2261 | windowToClearHandled = true; |
| 2262 | } |
| 2263 | if (aAncestorBrowsingContextToFocus && |
| 2264 | aAncestorBrowsingContextToFocus->IsInProcess()) { |
| 2265 | nsPIDOMWindowOuter* ancestorWindowToFocus = |
| 2266 | aAncestorBrowsingContextToFocus->GetDOMWindow(); |
| 2267 | 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" , 2267); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ancestorWindowToFocus" ")"); do { *((volatile int*)__null) = 2267; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2268 | ancestorWindowToFocus->SetFocusedElement(nullptr, 0, true); |
| 2269 | ancestorWindowToFocusHandled = true; |
| 2270 | } |
| 2271 | // The expectation is that the blurring would eventually result in an IPC |
| 2272 | // message doing this anyway, but this doesn't happen if the focus is in OOP |
| 2273 | // iframe which won't try to bounce an IPC message to its parent frame. |
| 2274 | SetFocusedWindowInternal(nullptr, aActionId); |
| 2275 | contentChild->SendBlurToParent( |
| 2276 | focusedBrowsingContext, aBrowsingContextToClear, |
| 2277 | aAncestorBrowsingContextToFocus, aIsLeavingDocument, aAdjustWidget, |
| 2278 | windowToClearHandled, ancestorWindowToFocusHandled, aActionId); |
| 2279 | return true; |
| 2280 | } |
| 2281 | |
| 2282 | void nsFocusManager::BlurFromOtherProcess( |
| 2283 | mozilla::dom::BrowsingContext* aFocusedBrowsingContext, |
| 2284 | mozilla::dom::BrowsingContext* aBrowsingContextToClear, |
| 2285 | mozilla::dom::BrowsingContext* aAncestorBrowsingContextToFocus, |
| 2286 | bool aIsLeavingDocument, bool aAdjustWidget, uint64_t aActionId) { |
| 2287 | if (aFocusedBrowsingContext != GetFocusedBrowsingContext()) { |
| 2288 | return; |
| 2289 | } |
| 2290 | BlurImpl(aBrowsingContextToClear, aAncestorBrowsingContextToFocus, |
| 2291 | aIsLeavingDocument, aAdjustWidget, /* aRemainActive = */ false, |
| 2292 | nullptr, aActionId); |
| 2293 | } |
| 2294 | |
| 2295 | bool nsFocusManager::BlurImpl(BrowsingContext* aBrowsingContextToClear, |
| 2296 | BrowsingContext* aAncestorBrowsingContextToFocus, |
| 2297 | bool aIsLeavingDocument, bool aAdjustWidget, |
| 2298 | bool aRemainActive, Element* aElementToFocus, |
| 2299 | uint64_t aActionId) { |
| 2300 | 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); |
| 2301 | |
| 2302 | // hold a reference to the focused content, which may be null |
| 2303 | RefPtr<Element> element = mFocusedElement; |
| 2304 | if (element) { |
| 2305 | if (!element->IsInComposedDoc()) { |
| 2306 | mFocusedElement = nullptr; |
| 2307 | return true; |
| 2308 | } |
| 2309 | if (element == mFirstBlurEvent) { |
| 2310 | return true; |
| 2311 | } |
| 2312 | } |
| 2313 | |
| 2314 | RefPtr<BrowsingContext> focusedBrowsingContext = GetFocusedBrowsingContext(); |
| 2315 | // hold a reference to the focused window |
| 2316 | nsCOMPtr<nsPIDOMWindowOuter> window; |
| 2317 | if (focusedBrowsingContext) { |
| 2318 | window = focusedBrowsingContext->GetDOMWindow(); |
| 2319 | } |
| 2320 | if (!window) { |
| 2321 | mFocusedElement = nullptr; |
| 2322 | return true; |
| 2323 | } |
| 2324 | |
| 2325 | nsCOMPtr<nsIDocShell> docShell = window->GetDocShell(); |
| 2326 | if (!docShell) { |
| 2327 | if (XRE_IsContentProcess() && |
| 2328 | ActionIdComparableAndLower( |
| 2329 | aActionId, mActionIdForFocusedBrowsingContextInContent)) { |
| 2330 | // Unclear if this ever happens. |
| 2331 | 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) |
| 2332 | ("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) |
| 2333 | "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) |
| 2334 | 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); |
| 2335 | return true; |
| 2336 | } |
| 2337 | |
| 2338 | mFocusedWindow = nullptr; |
| 2339 | // Setting focused BrowsingContext to nullptr to avoid leaking in print |
| 2340 | // preview. |
| 2341 | SetFocusedBrowsingContext(nullptr, aActionId); |
| 2342 | mFocusedElement = nullptr; |
| 2343 | return true; |
| 2344 | } |
| 2345 | |
| 2346 | // Keep a ref to presShell since dispatching the DOM event may cause |
| 2347 | // the document to be destroyed. |
| 2348 | RefPtr<PresShell> presShell = docShell->GetPresShell(); |
| 2349 | if (!presShell) { |
| 2350 | if (XRE_IsContentProcess() && |
| 2351 | ActionIdComparableAndLower( |
| 2352 | aActionId, mActionIdForFocusedBrowsingContextInContent)) { |
| 2353 | // Unclear if this ever happens. |
| 2354 | 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) |
| 2355 | ("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) |
| 2356 | "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) |
| 2357 | 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); |
| 2358 | return true; |
| 2359 | } |
| 2360 | mFocusedElement = nullptr; |
| 2361 | mFocusedWindow = nullptr; |
| 2362 | // Setting focused BrowsingContext to nullptr to avoid leaking in print |
| 2363 | // preview. |
| 2364 | SetFocusedBrowsingContext(nullptr, aActionId); |
| 2365 | return true; |
| 2366 | } |
| 2367 | |
| 2368 | Maybe<AutoRestore<RefPtr<Element>>> ar; |
| 2369 | if (!mFirstBlurEvent) { |
| 2370 | ar.emplace(mFirstBlurEvent); |
| 2371 | mFirstBlurEvent = element; |
| 2372 | } |
| 2373 | |
| 2374 | const RefPtr<nsPresContext> focusedPresContext = |
| 2375 | GetActiveBrowsingContext() ? presShell->GetPresContext() : nullptr; |
| 2376 | IMEStateManager::OnChangeFocus(focusedPresContext, nullptr, |
| 2377 | GetFocusMoveActionCause(0)); |
| 2378 | |
| 2379 | // now adjust the actual focus, by clearing the fields in the focus manager |
| 2380 | // and in the window. |
| 2381 | mFocusedElement = nullptr; |
| 2382 | if (aBrowsingContextToClear) { |
| 2383 | nsPIDOMWindowOuter* windowToClear = aBrowsingContextToClear->GetDOMWindow(); |
| 2384 | if (windowToClear) { |
| 2385 | windowToClear->SetFocusedElement(nullptr); |
| 2386 | } |
| 2387 | } |
| 2388 | |
| 2389 | 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); }; |
| 2390 | |
| 2391 | // Don't fire blur event on the root content which isn't editable. |
| 2392 | bool sendBlurEvent = |
| 2393 | element && element->IsInComposedDoc() && !IsNonFocusableRoot(element); |
| 2394 | if (element) { |
| 2395 | if (sendBlurEvent) { |
| 2396 | NotifyFocusStateChange(element, aElementToFocus, 0, false, false); |
| 2397 | } |
| 2398 | |
| 2399 | if (!aRemainActive) { |
| 2400 | bool windowBeingLowered = !aBrowsingContextToClear && |
| 2401 | !aAncestorBrowsingContextToFocus && |
| 2402 | aIsLeavingDocument && aAdjustWidget; |
| 2403 | // If the object being blurred is a remote browser, deactivate remote |
| 2404 | // content |
| 2405 | if (BrowserParent* remote = BrowserParent::GetFrom(element)) { |
| 2406 | 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" , 2406); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 2406; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2407 | // Let's deactivate all remote browsers. |
| 2408 | BrowsingContext* topLevelBrowsingContext = remote->GetBrowsingContext(); |
| 2409 | topLevelBrowsingContext->PreOrderWalk([&](BrowsingContext* aContext) { |
| 2410 | if (WindowGlobalParent* windowGlobalParent = |
| 2411 | aContext->Canonical()->GetCurrentWindowGlobal()) { |
| 2412 | if (RefPtr<BrowserParent> browserParent = |
| 2413 | windowGlobalParent->GetBrowserParent()) { |
| 2414 | browserParent->Deactivate(windowBeingLowered, aActionId); |
| 2415 | 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) |
| 2416 | ("%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) |
| 2417 | 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) |
| 2418 | : "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) |
| 2419 | 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); |
| 2420 | } |
| 2421 | } |
| 2422 | }); |
| 2423 | } |
| 2424 | |
| 2425 | // Same as above but for out-of-process iframes |
| 2426 | if (BrowserBridgeChild* bbc = BrowserBridgeChild::GetFrom(element)) { |
| 2427 | bbc->Deactivate(windowBeingLowered, aActionId); |
| 2428 | 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) |
| 2429 | ("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) |
| 2430 | 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); |
| 2431 | } |
| 2432 | } |
| 2433 | } |
| 2434 | |
| 2435 | bool result = true; |
| 2436 | if (sendBlurEvent) { |
| 2437 | // if there is an active window, update commands. If there isn't an active |
| 2438 | // window, then this was a blur caused by the active window being lowered, |
| 2439 | // so there is no need to update the commands |
| 2440 | if (GetActiveBrowsingContext()) { |
| 2441 | window->UpdateCommands(u"focus"_ns); |
| 2442 | } |
| 2443 | |
| 2444 | SendFocusOrBlurEvent(eBlur, presShell, element->GetComposedDoc(), element, |
| 2445 | false, false, aElementToFocus); |
| 2446 | } |
| 2447 | |
| 2448 | // if we are leaving the document or the window was lowered, make the caret |
| 2449 | // invisible. |
| 2450 | if (aIsLeavingDocument || !GetActiveBrowsingContext()) { |
| 2451 | SetCaretVisible(presShell, false, nullptr); |
| 2452 | } |
| 2453 | |
| 2454 | RefPtr<AccessibleCaretEventHub> eventHub = |
| 2455 | presShell->GetAccessibleCaretEventHub(); |
| 2456 | if (eventHub) { |
| 2457 | eventHub->NotifyBlur(aIsLeavingDocument || !GetActiveBrowsingContext()); |
| 2458 | } |
| 2459 | |
| 2460 | // at this point, it is expected that this window will be still be |
| 2461 | // focused, but the focused element will be null, as it was cleared before |
| 2462 | // the event. If this isn't the case, then something else was focused during |
| 2463 | // the blur event above and we should just return. However, if |
| 2464 | // aIsLeavingDocument is set, a new document is desired, so make sure to |
| 2465 | // blur the document and window. |
| 2466 | if (GetFocusedBrowsingContext() != window->GetBrowsingContext() || |
| 2467 | (mFocusedElement != nullptr && !aIsLeavingDocument)) { |
| 2468 | result = false; |
| 2469 | } else if (aIsLeavingDocument) { |
| 2470 | window->TakeFocus(false, 0); |
| 2471 | |
| 2472 | // clear the focus so that the ancestor frame hierarchy is in the correct |
| 2473 | // state. Pass true because aAncestorBrowsingContextToFocus is thought to be |
| 2474 | // focused at this point. |
| 2475 | if (aAncestorBrowsingContextToFocus) { |
| 2476 | nsPIDOMWindowOuter* ancestorWindowToFocus = |
| 2477 | aAncestorBrowsingContextToFocus->GetDOMWindow(); |
| 2478 | if (ancestorWindowToFocus) { |
| 2479 | ancestorWindowToFocus->SetFocusedElement(nullptr, 0, true); |
| 2480 | } |
| 2481 | |
| 2482 | // When the focus of aBrowsingContextToClear is cleared, it should |
| 2483 | // also clear its ancestors's focus because ancestors should no longer |
| 2484 | // be considered aBrowsingContextToClear is focused. |
| 2485 | // |
| 2486 | // We don't need to do this when aBrowsingContextToClear and |
| 2487 | // aAncestorBrowsingContextToFocus is equal because ancestors don't |
| 2488 | // care about this. |
| 2489 | if (aBrowsingContextToClear && |
| 2490 | aBrowsingContextToClear != aAncestorBrowsingContextToFocus) { |
| 2491 | AdjustWindowFocus( |
| 2492 | aBrowsingContextToClear, false, |
| 2493 | IsWindowVisible(aBrowsingContextToClear->GetDOMWindow()), aActionId, |
| 2494 | true /* aShouldClearAncestorFocus */, |
| 2495 | aAncestorBrowsingContextToFocus); |
| 2496 | } |
| 2497 | } |
| 2498 | |
| 2499 | SetFocusedWindowInternal(nullptr, aActionId); |
| 2500 | mFocusedElement = nullptr; |
| 2501 | |
| 2502 | RefPtr<Document> doc = window->GetExtantDoc(); |
| 2503 | if (doc) { |
| 2504 | SendFocusOrBlurEvent(eBlur, presShell, doc, doc, false); |
| 2505 | } |
| 2506 | if (!GetFocusedBrowsingContext()) { |
| 2507 | nsCOMPtr<nsPIDOMWindowInner> innerWindow = |
| 2508 | window->GetCurrentInnerWindow(); |
| 2509 | // MOZ_KnownLive due to bug 1506441 |
| 2510 | SendFocusOrBlurEvent( |
| 2511 | eBlur, presShell, doc, |
| 2512 | MOZ_KnownLive(nsGlobalWindowInner::Cast(innerWindow))(nsGlobalWindowInner::Cast(innerWindow)), false); |
| 2513 | } |
| 2514 | |
| 2515 | // check if a different window was focused |
| 2516 | result = (!GetFocusedBrowsingContext() && GetActiveBrowsingContext()); |
| 2517 | } else if (GetActiveBrowsingContext()) { |
| 2518 | // Otherwise, the blur of the element without blurring the document |
| 2519 | // occurred normally. Call UpdateCaret to redisplay the caret at the right |
| 2520 | // location within the document. This is needed to ensure that the caret |
| 2521 | // used for caret browsing is made visible again when an input field is |
| 2522 | // blurred. |
| 2523 | UpdateCaret(false, true, nullptr); |
| 2524 | } |
| 2525 | |
| 2526 | return result; |
| 2527 | } |
| 2528 | |
| 2529 | void nsFocusManager::ActivateRemoteFrameIfNeeded(Element& aElement, |
| 2530 | uint64_t aActionId) { |
| 2531 | if (BrowserParent* remote = BrowserParent::GetFrom(&aElement)) { |
| 2532 | remote->Activate(aActionId); |
| 2533 | 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) |
| 2534 | ("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); |
| 2535 | } |
| 2536 | |
| 2537 | // Same as above but for out-of-process iframes |
| 2538 | if (BrowserBridgeChild* bbc = BrowserBridgeChild::GetFrom(&aElement)) { |
| 2539 | bbc->Activate(aActionId); |
| 2540 | 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) |
| 2541 | 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); |
| 2542 | } |
| 2543 | } |
| 2544 | |
| 2545 | void nsFocusManager::Focus( |
| 2546 | nsPIDOMWindowOuter* aWindow, Element* aElement, uint32_t aFlags, |
| 2547 | bool aIsNewDocument, bool aFocusChanged, bool aWindowRaised, |
| 2548 | bool aAdjustWidget, uint64_t aActionId, |
| 2549 | const Maybe<BlurredElementInfo>& aBlurredElementInfo) { |
| 2550 | 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); |
| 2551 | |
| 2552 | if (!aWindow) { |
| 2553 | return; |
| 2554 | } |
| 2555 | |
| 2556 | if (aElement && |
| 2557 | (aElement == mFirstFocusEvent || aElement == mFirstBlurEvent)) { |
| 2558 | return; |
| 2559 | } |
| 2560 | |
| 2561 | // Keep a reference to the presShell since dispatching the DOM event may |
| 2562 | // cause the document to be destroyed. |
| 2563 | nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell(); |
| 2564 | if (!docShell) { |
| 2565 | return; |
| 2566 | } |
| 2567 | |
| 2568 | const RefPtr<PresShell> presShell = docShell->GetPresShell(); |
| 2569 | if (!presShell) { |
| 2570 | return; |
| 2571 | } |
| 2572 | |
| 2573 | bool focusInOtherContentProcess = false; |
| 2574 | // Keep mochitest-browser-chrome harness happy by ignoring |
| 2575 | // focusInOtherContentProcess in the chrome process, because the harness |
| 2576 | // expects that. |
| 2577 | if (!XRE_IsParentProcess()) { |
| 2578 | if (RefPtr<nsFrameLoaderOwner> flo = do_QueryObject(aElement)) { |
| 2579 | // Only look at pre-existing browsing contexts. If this function is |
| 2580 | // called during reflow, calling GetBrowsingContext() could cause frame |
| 2581 | // loader initialization at a time when it isn't safe. |
| 2582 | if (BrowsingContext* bc = flo->GetExtantBrowsingContext()) { |
| 2583 | focusInOtherContentProcess = !bc->IsInProcess(); |
| 2584 | } |
| 2585 | } |
| 2586 | |
| 2587 | if (ActionIdComparableAndLower( |
| 2588 | aActionId, mActionIdForFocusedBrowsingContextInContent)) { |
| 2589 | // Unclear if this ever happens. |
| 2590 | 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) |
| 2591 | ("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) |
| 2592 | "%" 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) |
| 2593 | 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); |
| 2594 | return; |
| 2595 | } |
| 2596 | } |
| 2597 | |
| 2598 | // If the focus actually changed, set the focus method (mouse, keyboard, etc). |
| 2599 | // Otherwise, just get the current focus method and use that. This ensures |
| 2600 | // that the method is set during the document and window focus events. |
| 2601 | uint32_t focusMethod = aFocusChanged |
| 2602 | ? aFlags & METHODANDRING_MASK |
| 2603 | : aWindow->GetFocusMethod() | |
| 2604 | (aFlags & (FLAG_SHOWRING | FLAG_NOSHOWRING)); |
| 2605 | |
| 2606 | if (!IsWindowVisible(aWindow)) { |
| 2607 | // if the window isn't visible, for instance because it is a hidden tab, |
| 2608 | // update the current focus and scroll it into view but don't do anything |
| 2609 | // else |
| 2610 | if (RefPtr elementToFocus = FlushAndCheckIfFocusable(aElement, aFlags)) { |
| 2611 | aWindow->SetFocusedElement(elementToFocus, focusMethod); |
| 2612 | if (aFocusChanged) { |
| 2613 | ScrollIntoView(presShell, elementToFocus, aFlags); |
| 2614 | } |
| 2615 | } |
| 2616 | return; |
| 2617 | } |
| 2618 | |
| 2619 | Maybe<AutoRestore<RefPtr<Element>>> ar; |
| 2620 | if (!mFirstFocusEvent) { |
| 2621 | ar.emplace(mFirstFocusEvent); |
| 2622 | mFirstFocusEvent = aElement; |
| 2623 | } |
| 2624 | |
| 2625 | 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); }; |
| 2626 | |
| 2627 | if (MOZ_LOG_TEST(gFocusLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(gFocusLog, LogLevel ::Debug)), 0))) { |
| 2628 | Document* docm = aWindow->GetExtantDoc(); |
| 2629 | if (docm) { |
| 2630 | 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); }; |
| 2631 | } |
| 2632 | 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) |
| 2633 | (" [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) |
| 2634 | "]",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) |
| 2635 | 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); |
| 2636 | } |
| 2637 | |
| 2638 | if (aIsNewDocument) { |
| 2639 | // if this is a new document, update the parent chain of frames so that |
| 2640 | // focus can be traversed from the top level down to the newly focused |
| 2641 | // window. |
| 2642 | RefPtr<BrowsingContext> bc = aWindow->GetBrowsingContext(); |
| 2643 | AdjustWindowFocus(bc, false, IsWindowVisible(aWindow), aActionId, |
| 2644 | false /* aShouldClearAncestorFocus */, |
| 2645 | nullptr /* aAncestorBrowsingContextToFocus */); |
| 2646 | } |
| 2647 | |
| 2648 | // indicate that the window has taken focus. |
| 2649 | if (aWindow->TakeFocus(true, focusMethod)) { |
| 2650 | aIsNewDocument = true; |
| 2651 | } |
| 2652 | |
| 2653 | SetFocusedWindowInternal(aWindow, aActionId); |
| 2654 | |
| 2655 | if (aAdjustWidget && !sTestMode) { |
| 2656 | if (nsViewManager* vm = presShell->GetViewManager()) { |
| 2657 | nsCOMPtr<nsIWidget> widget = vm->GetRootWidget(); |
| 2658 | if (widget) |
| 2659 | widget->SetFocus(nsIWidget::Raise::No, aFlags & FLAG_NONSYSTEMCALLER |
| 2660 | ? CallerType::NonSystem |
| 2661 | : CallerType::System); |
| 2662 | } |
| 2663 | } |
| 2664 | |
| 2665 | // if switching to a new document, first fire the focus event on the |
| 2666 | // document and then the window. |
| 2667 | if (aIsNewDocument) { |
| 2668 | RefPtr<Document> doc = aWindow->GetExtantDoc(); |
| 2669 | // The focus change should be notified to IMEStateManager from here if: |
| 2670 | // * the focused element is in design mode or |
| 2671 | // * nobody gets focus and the document is in design mode |
| 2672 | // since any element whose uncomposed document is in design mode won't |
| 2673 | // receive focus event. |
| 2674 | if (doc && ((aElement && aElement->IsInDesignMode()) || |
| 2675 | (!aElement && doc->IsInDesignMode()))) { |
| 2676 | RefPtr<nsPresContext> presContext = presShell->GetPresContext(); |
| 2677 | IMEStateManager::OnChangeFocus(presContext, nullptr, |
| 2678 | GetFocusMoveActionCause(aFlags)); |
| 2679 | } |
| 2680 | if (doc && !focusInOtherContentProcess) { |
| 2681 | SendFocusOrBlurEvent(eFocus, presShell, doc, doc, aWindowRaised); |
| 2682 | } |
| 2683 | if (GetFocusedBrowsingContext() == aWindow->GetBrowsingContext() && |
| 2684 | !mFocusedElement && !focusInOtherContentProcess) { |
| 2685 | nsCOMPtr<nsPIDOMWindowInner> innerWindow = |
| 2686 | aWindow->GetCurrentInnerWindow(); |
| 2687 | // MOZ_KnownLive due to bug 1506441 |
| 2688 | SendFocusOrBlurEvent( |
| 2689 | eFocus, presShell, doc, |
| 2690 | MOZ_KnownLive(nsGlobalWindowInner::Cast(innerWindow))(nsGlobalWindowInner::Cast(innerWindow)), aWindowRaised); |
| 2691 | } |
| 2692 | } |
| 2693 | |
| 2694 | // check to ensure that the element is still focusable, and that nothing |
| 2695 | // else was focused during the events above. |
| 2696 | // Note that the focusing element may have already been moved to another |
| 2697 | // document/window. In that case, we should stop setting focus to it |
| 2698 | // because setting focus to the new window would cause redirecting focus |
| 2699 | // again and again. |
| 2700 | RefPtr elementToFocus = |
| 2701 | aElement && aElement->IsInComposedDoc() && |
| 2702 | aElement->GetComposedDoc() == aWindow->GetExtantDoc() |
| 2703 | ? FlushAndCheckIfFocusable(aElement, aFlags) |
| 2704 | : nullptr; |
| 2705 | if (elementToFocus && !mFocusedElement && |
| 2706 | GetFocusedBrowsingContext() == aWindow->GetBrowsingContext()) { |
| 2707 | mFocusedElement = elementToFocus; |
| 2708 | |
| 2709 | nsIContent* focusedNode = aWindow->GetFocusedElement(); |
| 2710 | const bool sendFocusEvent = elementToFocus->IsInComposedDoc() && |
| 2711 | !IsNonFocusableRoot(elementToFocus); |
| 2712 | const bool isRefocus = focusedNode && focusedNode == elementToFocus; |
| 2713 | const bool shouldShowFocusRing = |
| 2714 | sendFocusEvent && |
| 2715 | ShouldMatchFocusVisible(aWindow, *elementToFocus, aFlags); |
| 2716 | |
| 2717 | aWindow->SetFocusedElement(elementToFocus, focusMethod, false); |
| 2718 | |
| 2719 | const RefPtr<nsPresContext> presContext = presShell->GetPresContext(); |
| 2720 | if (sendFocusEvent) { |
| 2721 | NotifyFocusStateChange(elementToFocus, nullptr, aFlags, |
| 2722 | /* aGettingFocus = */ true, shouldShowFocusRing); |
| 2723 | |
| 2724 | // If this is a remote browser, focus its widget and activate remote |
| 2725 | // content. Note that we might no longer be in the same document, |
| 2726 | // due to the events we fired above when aIsNewDocument. |
| 2727 | if (presShell->GetDocument() == elementToFocus->GetComposedDoc()) { |
| 2728 | ActivateRemoteFrameIfNeeded(*elementToFocus, aActionId); |
| 2729 | } |
| 2730 | |
| 2731 | IMEStateManager::OnChangeFocus(presContext, elementToFocus, |
| 2732 | GetFocusMoveActionCause(aFlags)); |
| 2733 | |
| 2734 | // as long as this focus wasn't because a window was raised, update the |
| 2735 | // commands |
| 2736 | // XXXndeakin P2 someone could adjust the focus during the update |
| 2737 | if (!aWindowRaised) { |
| 2738 | aWindow->UpdateCommands(u"focus"_ns); |
| 2739 | } |
| 2740 | |
| 2741 | // If the focused element changed, scroll it into view |
| 2742 | if (aFocusChanged) { |
| 2743 | ScrollIntoView(presShell, elementToFocus, aFlags); |
| 2744 | } |
| 2745 | |
| 2746 | if (!focusInOtherContentProcess) { |
| 2747 | RefPtr<Document> composedDocument = elementToFocus->GetComposedDoc(); |
| 2748 | RefPtr<Element> relatedTargetElement = |
| 2749 | aBlurredElementInfo ? aBlurredElementInfo->mElement.get() : nullptr; |
| 2750 | SendFocusOrBlurEvent(eFocus, presShell, composedDocument, |
| 2751 | elementToFocus, aWindowRaised, isRefocus, |
| 2752 | relatedTargetElement); |
| 2753 | } |
| 2754 | } else { |
| 2755 | // We should notify IMEStateManager of actual focused element even if it |
| 2756 | // won't get focus event because the other IMEStateManager users do not |
| 2757 | // want to depend on this check, but IMEStateManager wants to verify |
| 2758 | // passed focused element for avoidng to overrride nested calls. |
| 2759 | IMEStateManager::OnChangeFocus(presContext, elementToFocus, |
| 2760 | GetFocusMoveActionCause(aFlags)); |
| 2761 | if (!aWindowRaised) { |
| 2762 | aWindow->UpdateCommands(u"focus"_ns); |
| 2763 | } |
| 2764 | if (aFocusChanged) { |
| 2765 | // If the focused element changed, scroll it into view |
| 2766 | ScrollIntoView(presShell, elementToFocus, aFlags); |
| 2767 | } |
| 2768 | } |
| 2769 | } else { |
| 2770 | if (!mFocusedElement && mFocusedWindow == aWindow) { |
| 2771 | // When there is no focused element, IMEStateManager needs to adjust IME |
| 2772 | // enabled state with the document. |
| 2773 | RefPtr<nsPresContext> presContext = presShell->GetPresContext(); |
| 2774 | IMEStateManager::OnChangeFocus(presContext, nullptr, |
| 2775 | GetFocusMoveActionCause(aFlags)); |
| 2776 | } |
| 2777 | |
| 2778 | if (!aWindowRaised) { |
| 2779 | aWindow->UpdateCommands(u"focus"_ns); |
| 2780 | } |
| 2781 | } |
| 2782 | |
| 2783 | // update the caret visibility and position to match the newly focused |
| 2784 | // element. However, don't update the position if this was a focus due to a |
| 2785 | // mouse click as the selection code would already have moved the caret as |
| 2786 | // needed. If this is a different document than was focused before, also |
| 2787 | // update the caret's visibility. If this is the same document, the caret |
| 2788 | // visibility should be the same as before so there is no need to update it. |
| 2789 | if (mFocusedElement == elementToFocus) { |
| 2790 | RefPtr<Element> focusedElement = mFocusedElement; |
| 2791 | UpdateCaret(aFocusChanged && !(aFlags & FLAG_BYMOUSE), aIsNewDocument, |
| 2792 | focusedElement); |
| 2793 | } |
| 2794 | } |
| 2795 | |
| 2796 | class FocusBlurEvent : public Runnable { |
| 2797 | public: |
| 2798 | FocusBlurEvent(EventTarget* aTarget, EventMessage aEventMessage, |
| 2799 | nsPresContext* aContext, bool aWindowRaised, bool aIsRefocus, |
| 2800 | EventTarget* aRelatedTarget) |
| 2801 | : mozilla::Runnable("FocusBlurEvent"), |
| 2802 | mTarget(aTarget), |
| 2803 | mContext(aContext), |
| 2804 | mEventMessage(aEventMessage), |
| 2805 | mWindowRaised(aWindowRaised), |
| 2806 | mIsRefocus(aIsRefocus), |
| 2807 | mRelatedTarget(aRelatedTarget) {} |
| 2808 | |
| 2809 | // TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1415230, bug 1535398) |
| 2810 | MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHODvirtual nsresult Run() override { |
| 2811 | InternalFocusEvent event(true, mEventMessage); |
| 2812 | event.mFlags.mBubbles = false; |
| 2813 | event.mFlags.mCancelable = false; |
| 2814 | event.mFromRaise = mWindowRaised; |
| 2815 | event.mIsRefocus = mIsRefocus; |
| 2816 | event.mRelatedTarget = mRelatedTarget; |
| 2817 | return EventDispatcher::Dispatch(mTarget, mContext, &event); |
| 2818 | } |
| 2819 | |
| 2820 | const nsCOMPtr<EventTarget> mTarget; |
| 2821 | const RefPtr<nsPresContext> mContext; |
| 2822 | EventMessage mEventMessage; |
| 2823 | bool mWindowRaised; |
| 2824 | bool mIsRefocus; |
| 2825 | nsCOMPtr<EventTarget> mRelatedTarget; |
| 2826 | }; |
| 2827 | |
| 2828 | class FocusInOutEvent : public Runnable { |
| 2829 | public: |
| 2830 | FocusInOutEvent(EventTarget* aTarget, EventMessage aEventMessage, |
| 2831 | nsPresContext* aContext, |
| 2832 | nsPIDOMWindowOuter* aOriginalFocusedWindow, |
| 2833 | nsIContent* aOriginalFocusedContent, |
| 2834 | EventTarget* aRelatedTarget) |
| 2835 | : mozilla::Runnable("FocusInOutEvent"), |
| 2836 | mTarget(aTarget), |
| 2837 | mContext(aContext), |
| 2838 | mEventMessage(aEventMessage), |
| 2839 | mOriginalFocusedWindow(aOriginalFocusedWindow), |
| 2840 | mOriginalFocusedContent(aOriginalFocusedContent), |
| 2841 | mRelatedTarget(aRelatedTarget) {} |
| 2842 | |
| 2843 | // TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1415230, bug 1535398) |
| 2844 | MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHODvirtual nsresult Run() override { |
| 2845 | nsCOMPtr<nsIContent> originalWindowFocus = |
| 2846 | mOriginalFocusedWindow ? mOriginalFocusedWindow->GetFocusedElement() |
| 2847 | : nullptr; |
| 2848 | // Blink does not check that focus is the same after blur, but WebKit does. |
| 2849 | // Opt to follow Blink's behavior (see bug 687787). |
| 2850 | if (mEventMessage == eFocusOut || |
| 2851 | originalWindowFocus == mOriginalFocusedContent) { |
| 2852 | InternalFocusEvent event(true, mEventMessage); |
| 2853 | event.mFlags.mBubbles = true; |
| 2854 | event.mFlags.mCancelable = false; |
| 2855 | event.mRelatedTarget = mRelatedTarget; |
| 2856 | return EventDispatcher::Dispatch(mTarget, mContext, &event); |
| 2857 | } |
| 2858 | return NS_OK; |
| 2859 | } |
| 2860 | |
| 2861 | const nsCOMPtr<EventTarget> mTarget; |
| 2862 | const RefPtr<nsPresContext> mContext; |
| 2863 | EventMessage mEventMessage; |
| 2864 | nsCOMPtr<nsPIDOMWindowOuter> mOriginalFocusedWindow; |
| 2865 | nsCOMPtr<nsIContent> mOriginalFocusedContent; |
| 2866 | nsCOMPtr<EventTarget> mRelatedTarget; |
| 2867 | }; |
| 2868 | |
| 2869 | static Document* GetDocumentHelper(EventTarget* aTarget) { |
| 2870 | if (!aTarget) { |
| 2871 | return nullptr; |
| 2872 | } |
| 2873 | if (const nsINode* node = nsINode::FromEventTarget(aTarget)) { |
| 2874 | return node->OwnerDoc(); |
| 2875 | } |
| 2876 | nsPIDOMWindowInner* win = nsPIDOMWindowInner::FromEventTarget(aTarget); |
| 2877 | return win ? win->GetExtantDoc() : nullptr; |
| 2878 | } |
| 2879 | |
| 2880 | void nsFocusManager::FireFocusInOrOutEvent( |
| 2881 | EventMessage aEventMessage, PresShell* aPresShell, EventTarget* aTarget, |
| 2882 | nsPIDOMWindowOuter* aCurrentFocusedWindow, |
| 2883 | nsIContent* aCurrentFocusedContent, EventTarget* aRelatedTarget) { |
| 2884 | 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" , 2885); MOZ_PretendNoReturn(); } } while (0) |
| 2885 | "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" , 2885); MOZ_PretendNoReturn(); } } while (0); |
| 2886 | |
| 2887 | nsContentUtils::AddScriptRunner(new FocusInOutEvent( |
| 2888 | aTarget, aEventMessage, aPresShell->GetPresContext(), |
| 2889 | aCurrentFocusedWindow, aCurrentFocusedContent, aRelatedTarget)); |
| 2890 | } |
| 2891 | |
| 2892 | void nsFocusManager::SendFocusOrBlurEvent(EventMessage aEventMessage, |
| 2893 | PresShell* aPresShell, |
| 2894 | Document* aDocument, |
| 2895 | EventTarget* aTarget, |
| 2896 | bool aWindowRaised, bool aIsRefocus, |
| 2897 | EventTarget* aRelatedTarget) { |
| 2898 | 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" , 2899); MOZ_PretendNoReturn(); } } while (0) |
| 2899 | "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" , 2899); MOZ_PretendNoReturn(); } } while (0); |
| 2900 | |
| 2901 | nsCOMPtr<Document> eventTargetDoc = GetDocumentHelper(aTarget); |
| 2902 | nsCOMPtr<Document> relatedTargetDoc = GetDocumentHelper(aRelatedTarget); |
| 2903 | |
| 2904 | // set aRelatedTarget to null if it's not in the same document as aTarget |
| 2905 | if (eventTargetDoc != relatedTargetDoc) { |
| 2906 | aRelatedTarget = nullptr; |
| 2907 | } |
| 2908 | |
| 2909 | if (aDocument && aDocument->EventHandlingSuppressed()) { |
| 2910 | // if this event was already queued, remove it and append it to the end |
| 2911 | mDelayedBlurFocusEvents.RemoveElementsBy([&](const auto& event) { |
| 2912 | return event.mEventMessage == aEventMessage && |
| 2913 | event.mPresShell == aPresShell && event.mDocument == aDocument && |
| 2914 | event.mTarget == aTarget && event.mRelatedTarget == aRelatedTarget; |
| 2915 | }); |
| 2916 | |
| 2917 | mDelayedBlurFocusEvents.EmplaceBack(aEventMessage, aPresShell, aDocument, |
| 2918 | aTarget, aRelatedTarget); |
| 2919 | return; |
| 2920 | } |
| 2921 | |
| 2922 | // If mDelayedBlurFocusEvents queue is not empty, check if there are events |
| 2923 | // that belongs to this doc, if yes, fire them first. |
| 2924 | if (aDocument && !aDocument->EventHandlingSuppressed() && |
| 2925 | mDelayedBlurFocusEvents.Length()) { |
| 2926 | FireDelayedEvents(aDocument); |
| 2927 | } |
| 2928 | |
| 2929 | FireFocusOrBlurEvent(aEventMessage, aPresShell, aTarget, aWindowRaised, |
| 2930 | aIsRefocus, aRelatedTarget); |
| 2931 | } |
| 2932 | |
| 2933 | void nsFocusManager::FireFocusOrBlurEvent(EventMessage aEventMessage, |
| 2934 | PresShell* aPresShell, |
| 2935 | EventTarget* aTarget, |
| 2936 | bool aWindowRaised, bool aIsRefocus, |
| 2937 | EventTarget* aRelatedTarget) { |
| 2938 | nsCOMPtr<nsPIDOMWindowOuter> currentWindow = mFocusedWindow; |
| 2939 | nsCOMPtr<nsPIDOMWindowInner> targetWindow = do_QueryInterface(aTarget); |
| 2940 | nsCOMPtr<Document> targetDocument = do_QueryInterface(aTarget); |
| 2941 | nsCOMPtr<nsIContent> currentFocusedContent = |
| 2942 | currentWindow ? currentWindow->GetFocusedElement() : nullptr; |
| 2943 | |
| 2944 | #ifdef ACCESSIBILITY1 |
| 2945 | nsAccessibilityService* accService = GetAccService(); |
| 2946 | if (accService) { |
| 2947 | if (aEventMessage == eFocus) { |
| 2948 | accService->NotifyOfDOMFocus(aTarget); |
| 2949 | } else { |
| 2950 | accService->NotifyOfDOMBlur(aTarget); |
| 2951 | } |
| 2952 | } |
| 2953 | #endif |
| 2954 | |
| 2955 | aPresShell->ScheduleContentRelevancyUpdate( |
| 2956 | ContentRelevancyReason::FocusInSubtree); |
| 2957 | |
| 2958 | nsContentUtils::AddScriptRunner( |
| 2959 | new FocusBlurEvent(aTarget, aEventMessage, aPresShell->GetPresContext(), |
| 2960 | aWindowRaised, aIsRefocus, aRelatedTarget)); |
| 2961 | |
| 2962 | // Check that the target is not a window or document before firing |
| 2963 | // focusin/focusout. Other browsers do not fire focusin/focusout on window, |
| 2964 | // despite being required in the spec, so follow their behavior. |
| 2965 | // |
| 2966 | // As for document, we should not even fire focus/blur, but until then, we |
| 2967 | // need this check. targetDocument should be removed once bug 1228802 is |
| 2968 | // resolved. |
| 2969 | if (!targetWindow && !targetDocument) { |
| 2970 | EventMessage focusInOrOutMessage = |
| 2971 | aEventMessage == eFocus ? eFocusIn : eFocusOut; |
| 2972 | FireFocusInOrOutEvent(focusInOrOutMessage, aPresShell, aTarget, |
| 2973 | currentWindow, currentFocusedContent, aRelatedTarget); |
| 2974 | } |
| 2975 | } |
| 2976 | |
| 2977 | void nsFocusManager::ScrollIntoView(PresShell* aPresShell, nsIContent* aContent, |
| 2978 | uint32_t aFlags) { |
| 2979 | if (aFlags & FLAG_NOSCROLL) { |
| 2980 | return; |
| 2981 | } |
| 2982 | |
| 2983 | // If the noscroll flag isn't set, scroll the newly focused element into view. |
| 2984 | const ScrollAxis axis(WhereToScroll::Center, WhenToScroll::IfNotVisible); |
| 2985 | aPresShell->ScrollContentIntoView(aContent, axis, axis, |
| 2986 | ScrollFlags::ScrollOverflowHidden); |
| 2987 | // Scroll the input / textarea selection into view, unless focused with the |
| 2988 | // mouse, see bug 572649. |
| 2989 | if (aFlags & FLAG_BYMOUSE) { |
| 2990 | return; |
| 2991 | } |
| 2992 | // ScrollContentIntoView flushes layout, so no need to flush again here. |
| 2993 | if (nsTextControlFrame* tf = do_QueryFrame(aContent->GetPrimaryFrame())) { |
| 2994 | tf->ScrollSelectionIntoViewAsync(nsTextControlFrame::ScrollAncestors::Yes); |
| 2995 | } |
| 2996 | } |
| 2997 | |
| 2998 | void nsFocusManager::RaiseWindow(nsPIDOMWindowOuter* aWindow, |
| 2999 | CallerType aCallerType, uint64_t aActionId) { |
| 3000 | // don't raise windows that are already raised or are in the process of |
| 3001 | // being lowered |
| 3002 | |
| 3003 | if (!aWindow || aWindow == mWindowBeingLowered) { |
| 3004 | return; |
| 3005 | } |
| 3006 | |
| 3007 | if (XRE_IsParentProcess()) { |
| 3008 | if (aWindow == mActiveWindow) { |
| 3009 | return; |
| 3010 | } |
| 3011 | } else { |
| 3012 | BrowsingContext* bc = aWindow->GetBrowsingContext(); |
| 3013 | // TODO: Deeper OOP frame hierarchies are |
| 3014 | // https://bugzilla.mozilla.org/show_bug.cgi?id=1661227 |
| 3015 | if (bc == GetActiveBrowsingContext()) { |
| 3016 | return; |
| 3017 | } |
| 3018 | if (bc == GetFocusedBrowsingContext()) { |
| 3019 | return; |
| 3020 | } |
| 3021 | } |
| 3022 | |
| 3023 | if (sTestMode) { |
| 3024 | // In test mode, emulate raising the window. WindowRaised takes |
| 3025 | // care of lowering the present active window. This happens in |
| 3026 | // a separate runnable to avoid touching multiple windows in |
| 3027 | // the current runnable. |
| 3028 | |
| 3029 | nsCOMPtr<nsPIDOMWindowOuter> window(aWindow); |
| 3030 | RefPtr<nsFocusManager> self(this); |
| 3031 | NS_DispatchToCurrentThread(NS_NewRunnableFunction( |
| 3032 | "nsFocusManager::RaiseWindow", |
| 3033 | // TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1770093) |
| 3034 | [self, window]() MOZ_CAN_RUN_SCRIPT_BOUNDARY -> void { |
| 3035 | self->WindowRaised(window, GenerateFocusActionId()); |
| 3036 | })); |
| 3037 | return; |
| 3038 | } |
| 3039 | |
| 3040 | if (XRE_IsContentProcess()) { |
| 3041 | BrowsingContext* bc = aWindow->GetBrowsingContext(); |
| 3042 | if (!bc->IsTop()) { |
| 3043 | // Assume the raise below will succeed and run the raising synchronously |
| 3044 | // in this process to make the focus event that is observable in this |
| 3045 | // process fire in the right order relative to mouseup when we are here |
| 3046 | // thanks to a mousedown. |
| 3047 | WindowRaised(aWindow, aActionId); |
| 3048 | } |
| 3049 | } |
| 3050 | |
| 3051 | #if defined(XP_WIN) |
| 3052 | // Windows would rather we focus the child widget, otherwise, the toplevel |
| 3053 | // widget will always end up being focused. Fortunately, focusing the child |
| 3054 | // widget will also have the effect of raising the window this widget is in. |
| 3055 | // But on other platforms, we can just focus the toplevel widget to raise |
| 3056 | // the window. |
| 3057 | nsCOMPtr<nsPIDOMWindowOuter> childWindow; |
| 3058 | GetFocusedDescendant(aWindow, eIncludeAllDescendants, |
| 3059 | getter_AddRefs(childWindow)); |
| 3060 | if (!childWindow) { |
| 3061 | childWindow = aWindow; |
| 3062 | } |
| 3063 | |
| 3064 | nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell(); |
| 3065 | if (!docShell) { |
| 3066 | return; |
| 3067 | } |
| 3068 | |
| 3069 | PresShell* presShell = docShell->GetPresShell(); |
| 3070 | if (!presShell) { |
| 3071 | return; |
| 3072 | } |
| 3073 | |
| 3074 | if (nsViewManager* vm = presShell->GetViewManager()) { |
| 3075 | nsCOMPtr<nsIWidget> widget = vm->GetRootWidget(); |
| 3076 | if (widget) { |
| 3077 | widget->SetFocus(nsIWidget::Raise::Yes, aCallerType); |
| 3078 | } |
| 3079 | } |
| 3080 | #else |
| 3081 | nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = |
| 3082 | do_QueryInterface(aWindow->GetDocShell()); |
| 3083 | if (treeOwnerAsWin) { |
| 3084 | nsCOMPtr<nsIWidget> widget; |
| 3085 | treeOwnerAsWin->GetMainWidget(getter_AddRefs(widget)); |
| 3086 | if (widget) { |
| 3087 | widget->SetFocus(nsIWidget::Raise::Yes, aCallerType); |
| 3088 | } |
| 3089 | } |
| 3090 | #endif |
| 3091 | } |
| 3092 | |
| 3093 | void nsFocusManager::UpdateCaretForCaretBrowsingMode() { |
| 3094 | RefPtr<Element> focusedElement = mFocusedElement; |
| 3095 | UpdateCaret(false, true, focusedElement); |
| 3096 | } |
| 3097 | |
| 3098 | void nsFocusManager::UpdateCaret(bool aMoveCaretToFocus, bool aUpdateVisibility, |
| 3099 | nsIContent* aContent) { |
| 3100 | 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); |
| 3101 | |
| 3102 | if (!mFocusedWindow) { |
| 3103 | return; |
| 3104 | } |
| 3105 | |
| 3106 | // this is called when a document is focused or when the caretbrowsing |
| 3107 | // preference is changed |
| 3108 | nsCOMPtr<nsIDocShell> focusedDocShell = mFocusedWindow->GetDocShell(); |
| 3109 | if (!focusedDocShell) { |
| 3110 | return; |
| 3111 | } |
| 3112 | |
| 3113 | if (focusedDocShell->ItemType() == nsIDocShellTreeItem::typeChrome) { |
| 3114 | return; // Never browse with caret in chrome |
| 3115 | } |
| 3116 | |
| 3117 | bool browseWithCaret = Preferences::GetBool("accessibility.browsewithcaret"); |
| 3118 | |
| 3119 | const RefPtr<PresShell> presShell = focusedDocShell->GetPresShell(); |
| 3120 | if (!presShell) { |
| 3121 | return; |
| 3122 | } |
| 3123 | |
| 3124 | // If this is an editable document which isn't contentEditable, or a |
| 3125 | // contentEditable document and the node to focus is contentEditable, |
| 3126 | // return, so that we don't mess with caret visibility. |
| 3127 | bool isEditable = false; |
| 3128 | focusedDocShell->GetEditable(&isEditable); |
| 3129 | |
| 3130 | if (isEditable) { |
| 3131 | Document* doc = presShell->GetDocument(); |
| 3132 | |
| 3133 | bool isContentEditableDoc = |
| 3134 | doc && |
| 3135 | doc->GetEditingState() == Document::EditingState::eContentEditable; |
| 3136 | |
| 3137 | bool isFocusEditable = aContent && aContent->HasFlag(NODE_IS_EDITABLE); |
| 3138 | if (!isContentEditableDoc || isFocusEditable) { |
| 3139 | return; |
| 3140 | } |
| 3141 | } |
| 3142 | |
| 3143 | if (!isEditable && aMoveCaretToFocus) { |
| 3144 | MoveCaretToFocus(presShell, aContent); |
| 3145 | } |
| 3146 | |
| 3147 | // The above MoveCaretToFocus call may run scripts which |
| 3148 | // may clear mFocusWindow |
| 3149 | if (!mFocusedWindow) { |
| 3150 | return; |
| 3151 | } |
| 3152 | |
| 3153 | if (!aUpdateVisibility) { |
| 3154 | return; |
| 3155 | } |
| 3156 | |
| 3157 | // XXXndeakin this doesn't seem right. It should be checking for this only |
| 3158 | // on the nearest ancestor frame which is a chrome frame. But this is |
| 3159 | // what the existing code does, so just leave it for now. |
| 3160 | if (!browseWithCaret) { |
| 3161 | nsCOMPtr<Element> docElement = mFocusedWindow->GetFrameElementInternal(); |
| 3162 | if (docElement) |
| 3163 | browseWithCaret = docElement->AttrValueIs( |
| 3164 | kNameSpaceID_None, nsGkAtoms::showcaret, u"true"_ns, eCaseMatters); |
| 3165 | } |
| 3166 | |
| 3167 | SetCaretVisible(presShell, browseWithCaret, aContent); |
| 3168 | } |
| 3169 | |
| 3170 | void nsFocusManager::MoveCaretToFocus(PresShell* aPresShell, |
| 3171 | nsIContent* aContent) { |
| 3172 | nsCOMPtr<Document> doc = aPresShell->GetDocument(); |
| 3173 | if (doc) { |
| 3174 | RefPtr<nsFrameSelection> frameSelection = aPresShell->FrameSelection(); |
| 3175 | RefPtr<Selection> domSelection = |
| 3176 | frameSelection->GetSelection(SelectionType::eNormal); |
| 3177 | if (domSelection) { |
| 3178 | // First clear the selection. This way, if there is no currently focused |
| 3179 | // content, the selection will just be cleared. |
| 3180 | domSelection->RemoveAllRanges(IgnoreErrors()); |
| 3181 | if (aContent) { |
| 3182 | ErrorResult rv; |
| 3183 | RefPtr<nsRange> newRange = doc->CreateRange(rv); |
| 3184 | 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" , 3184)) { |
| 3185 | rv.SuppressException(); |
| 3186 | return; |
| 3187 | } |
| 3188 | |
| 3189 | // Set the range to the start of the currently focused node |
| 3190 | // Make sure it's collapsed |
| 3191 | newRange->SelectNodeContents(*aContent, IgnoreErrors()); |
| 3192 | |
| 3193 | if (!aContent->GetFirstChild() || |
| 3194 | aContent->IsHTMLFormControlElement()) { |
| 3195 | // If current focus node is a leaf, set range to before the |
| 3196 | // node by using the parent as a container. |
| 3197 | // This prevents it from appearing as selected. |
| 3198 | newRange->SetStartBefore(*aContent, IgnoreErrors()); |
| 3199 | newRange->SetEndBefore(*aContent, IgnoreErrors()); |
| 3200 | } |
| 3201 | domSelection->AddRangeAndSelectFramesAndNotifyListeners(*newRange, |
| 3202 | IgnoreErrors()); |
| 3203 | domSelection->CollapseToStart(IgnoreErrors()); |
| 3204 | } |
| 3205 | } |
| 3206 | } |
| 3207 | } |
| 3208 | |
| 3209 | nsresult nsFocusManager::SetCaretVisible(PresShell* aPresShell, bool aVisible, |
| 3210 | nsIContent* aContent) { |
| 3211 | // When browsing with caret, make sure caret is visible after new focus |
| 3212 | // Return early if there is no caret. This can happen for the testcase |
| 3213 | // for bug 308025 where a window is closed in a blur handler. |
| 3214 | RefPtr<nsCaret> caret = aPresShell->GetCaret(); |
| 3215 | if (!caret) { |
| 3216 | return NS_OK; |
| 3217 | } |
| 3218 | |
| 3219 | bool caretVisible = caret->IsVisible(); |
| 3220 | if (!aVisible && !caretVisible) { |
| 3221 | return NS_OK; |
| 3222 | } |
| 3223 | |
| 3224 | RefPtr<nsFrameSelection> frameSelection; |
| 3225 | if (aContent) { |
| 3226 | 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" , 3227); MOZ_PretendNoReturn(); } } while (0) |
| 3227 | "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" , 3227); MOZ_PretendNoReturn(); } } while (0); |
| 3228 | nsIFrame* focusFrame = aContent->GetPrimaryFrame(); |
| 3229 | if (focusFrame) { |
| 3230 | frameSelection = focusFrame->GetFrameSelection(); |
| 3231 | } |
| 3232 | } |
| 3233 | |
| 3234 | RefPtr<nsFrameSelection> docFrameSelection = aPresShell->FrameSelection(); |
| 3235 | |
| 3236 | if (docFrameSelection && caret && |
| 3237 | (frameSelection == docFrameSelection || !aContent)) { |
| 3238 | Selection* domSelection = |
| 3239 | docFrameSelection->GetSelection(SelectionType::eNormal); |
| 3240 | if (domSelection) { |
| 3241 | // First, hide the caret to prevent attempting to show it in |
| 3242 | // SetCaretDOMSelection |
| 3243 | aPresShell->SetCaretEnabled(false); |
| 3244 | |
| 3245 | // Caret must blink on non-editable elements |
| 3246 | caret->SetIgnoreUserModify(true); |
| 3247 | // Tell the caret which selection to use |
| 3248 | caret->SetSelection(domSelection); |
| 3249 | |
| 3250 | // In content, we need to set the caret. The only special case is edit |
| 3251 | // fields, which have a different frame selection from the document. |
| 3252 | // They will take care of making the caret visible themselves. |
| 3253 | |
| 3254 | aPresShell->SetCaretReadOnly(false); |
| 3255 | aPresShell->SetCaretEnabled(aVisible); |
| 3256 | } |
| 3257 | } |
| 3258 | |
| 3259 | return NS_OK; |
| 3260 | } |
| 3261 | |
| 3262 | void nsFocusManager::GetSelectionLocation(Document* aDocument, |
| 3263 | PresShell* aPresShell, |
| 3264 | nsIContent** aStartContent, |
| 3265 | nsIContent** aEndContent) { |
| 3266 | *aStartContent = *aEndContent = nullptr; |
| 3267 | |
| 3268 | nsPresContext* presContext = aPresShell->GetPresContext(); |
| 3269 | 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" , 3269); MOZ_PretendNoReturn(); } } while (0); |
| 3270 | |
| 3271 | RefPtr<Selection> domSelection = |
| 3272 | aPresShell->ConstFrameSelection()->GetSelection(SelectionType::eNormal); |
| 3273 | if (!domSelection) { |
| 3274 | return; |
| 3275 | } |
| 3276 | |
| 3277 | const nsRange* domRange = domSelection->GetRangeAt(0); |
| 3278 | if (!domRange || !domRange->IsPositioned()) { |
| 3279 | return; |
| 3280 | } |
| 3281 | nsIContent* start = nsIContent::FromNode(domRange->GetStartContainer()); |
| 3282 | nsIContent* end = nsIContent::FromNode(domRange->GetEndContainer()); |
| 3283 | if (nsIContent* child = domRange->StartRef().GetChildAtOffset()) { |
| 3284 | start = child; |
| 3285 | } |
| 3286 | if (nsIContent* child = domRange->EndRef().GetChildAtOffset()) { |
| 3287 | end = child; |
| 3288 | } |
| 3289 | |
| 3290 | // Next check to see if our caret is at the very end of a text node. If so, |
| 3291 | // the caret is actually sitting in front of the next logical frame's primary |
| 3292 | // node - so for this case we need to change the content to that node. |
| 3293 | // Note that if the text does not have text frame, we do not need to retreive |
| 3294 | // caret frame. This could occur if text frame has only collapsisble white- |
| 3295 | // spaces and is around a block boundary or an ancestor of it is invisible. |
| 3296 | // XXX If there is a visible text sibling, should we return it in the former |
| 3297 | // case? |
| 3298 | if (auto* text = Text::FromNodeOrNull(start); |
| 3299 | text && text->GetPrimaryFrame() && |
| 3300 | text->TextDataLength() == domRange->StartOffset() && |
| 3301 | domSelection->IsCollapsed()) { |
| 3302 | nsIFrame* startFrame = start->GetPrimaryFrame(); |
| 3303 | // Yes, indeed we were at the end of the last node |
| 3304 | nsIFrame* limiter = |
| 3305 | domSelection && domSelection->GetAncestorLimiter() |
| 3306 | ? domSelection->GetAncestorLimiter()->GetPrimaryFrame() |
| 3307 | : nullptr; |
| 3308 | nsFrameIterator frameIterator(presContext, startFrame, |
| 3309 | nsFrameIterator::Type::Leaf, |
| 3310 | false, // aVisual |
| 3311 | false, // aLockInScrollView |
| 3312 | true, // aFollowOOFs |
| 3313 | false, // aSkipPopupChecks |
| 3314 | limiter); |
| 3315 | |
| 3316 | nsIFrame* newCaretFrame = nullptr; |
| 3317 | nsIContent* newCaretContent = start; |
| 3318 | const bool endOfSelectionInStartNode = start == end; |
| 3319 | do { |
| 3320 | // Continue getting the next frame until the primary content for the |
| 3321 | // frame we are on changes - we don't want to be stuck in the same |
| 3322 | // place |
| 3323 | frameIterator.Next(); |
| 3324 | newCaretFrame = frameIterator.CurrentItem(); |
| 3325 | if (!newCaretFrame) { |
| 3326 | break; |
| 3327 | } |
| 3328 | newCaretContent = newCaretFrame->GetContent(); |
| 3329 | } while (!newCaretContent || newCaretContent == start); |
| 3330 | |
| 3331 | if (newCaretFrame && newCaretContent) { |
| 3332 | // If the caret is exactly at the same position of the new frame, |
| 3333 | // then we can use the newCaretFrame and newCaretContent for our |
| 3334 | // position |
| 3335 | nsRect caretRect; |
| 3336 | if (nsIFrame* frame = nsCaret::GetGeometry(domSelection, &caretRect)) { |
| 3337 | nsPoint caretWidgetOffset; |
| 3338 | nsIWidget* widget = frame->GetNearestWidget(caretWidgetOffset); |
| 3339 | caretRect.MoveBy(caretWidgetOffset); |
| 3340 | nsPoint newCaretOffset; |
| 3341 | nsIWidget* newCaretWidget = |
| 3342 | newCaretFrame->GetNearestWidget(newCaretOffset); |
| 3343 | if (widget == newCaretWidget && caretRect.TopLeft() == newCaretOffset) { |
| 3344 | // The caret is at the start of the new element. |
| 3345 | startFrame = newCaretFrame; |
Value stored to 'startFrame' is never read | |
| 3346 | start = newCaretContent; |
| 3347 | if (endOfSelectionInStartNode) { |
| 3348 | end = newCaretContent; // Ensure end of selection is |
| 3349 | // not before start |
| 3350 | } |
| 3351 | } |
| 3352 | } |
| 3353 | } |
| 3354 | } |
| 3355 | |
| 3356 | NS_IF_ADDREF(*aStartContent = start)ns_if_addref(*aStartContent = start); |
| 3357 | NS_IF_ADDREF(*aEndContent = end)ns_if_addref(*aEndContent = end); |
| 3358 | } |
| 3359 | |
| 3360 | nsresult nsFocusManager::DetermineElementToMoveFocus( |
| 3361 | nsPIDOMWindowOuter* aWindow, nsIContent* aStartContent, int32_t aType, |
| 3362 | bool aNoParentTraversal, bool aNavigateByKey, nsIContent** aNextContent) { |
| 3363 | *aNextContent = nullptr; |
| 3364 | |
| 3365 | // This is used for document navigation only. It will be set to true if we |
| 3366 | // start navigating from a starting point. If this starting point is near the |
| 3367 | // end of the document (for example, an element on a statusbar), and there |
| 3368 | // are no child documents or panels before the end of the document, then we |
| 3369 | // will need to ensure that we don't consider the root chrome window when we |
| 3370 | // loop around and instead find the next child document/panel, as focus is |
| 3371 | // already in that window. This flag will be cleared once we navigate into |
| 3372 | // another document. |
| 3373 | bool mayFocusRoot = (aStartContent != nullptr); |
| 3374 | |
| 3375 | nsCOMPtr<nsIContent> startContent = aStartContent; |
| 3376 | if (!startContent && aType != MOVEFOCUS_CARET) { |
| 3377 | if (aType == MOVEFOCUS_FORWARDDOC || aType == MOVEFOCUS_BACKWARDDOC) { |
| 3378 | // When moving between documents, make sure to get the right |
| 3379 | // starting content in a descendant. |
| 3380 | nsCOMPtr<nsPIDOMWindowOuter> focusedWindow; |
| 3381 | startContent = GetFocusedDescendant(aWindow, eIncludeAllDescendants, |
| 3382 | getter_AddRefs(focusedWindow)); |
| 3383 | } else if (aType != MOVEFOCUS_LASTDOC) { |
| 3384 | // Otherwise, start at the focused node. If MOVEFOCUS_LASTDOC is used, |
| 3385 | // then we are document-navigating backwards from chrome to the content |
| 3386 | // process, and we don't want to use this so that we start from the end |
| 3387 | // of the document. |
| 3388 | startContent = aWindow->GetFocusedElement(); |
| 3389 | } |
| 3390 | } |
| 3391 | |
| 3392 | nsCOMPtr<Document> doc; |
| 3393 | if (startContent) |
| 3394 | doc = startContent->GetComposedDoc(); |
| 3395 | else |
| 3396 | doc = aWindow->GetExtantDoc(); |
| 3397 | if (!doc) return NS_OK; |
| 3398 | |
| 3399 | // True if we are navigating by document (F6/Shift+F6) or false if we are |
| 3400 | // navigating by element (Tab/Shift+Tab). |
| 3401 | const bool forDocumentNavigation = |
| 3402 | aType == MOVEFOCUS_FORWARDDOC || aType == MOVEFOCUS_BACKWARDDOC || |
| 3403 | aType == MOVEFOCUS_FIRSTDOC || aType == MOVEFOCUS_LASTDOC; |
| 3404 | |
| 3405 | // If moving to the root or first document, find the root element and return. |
| 3406 | if (aType == MOVEFOCUS_ROOT || aType == MOVEFOCUS_FIRSTDOC) { |
| 3407 | NS_IF_ADDREF(*aNextContent = GetRootForFocus(aWindow, doc, false, false))ns_if_addref(*aNextContent = GetRootForFocus(aWindow, doc, false , false)); |
| 3408 | if (!*aNextContent && aType == MOVEFOCUS_FIRSTDOC) { |
| 3409 | // When looking for the first document, if the root wasn't focusable, |
| 3410 | // find the next focusable document. |
| 3411 | aType = MOVEFOCUS_FORWARDDOC; |
| 3412 | } else { |
| 3413 | return NS_OK; |
| 3414 | } |
| 3415 | } |
| 3416 | |
| 3417 | // rootElement and presShell may be set to sub-document's ones so that they |
| 3418 | // cannot be `const`. |
| 3419 | RefPtr<Element> rootElement = doc->GetRootElement(); |
| 3420 | 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" , 3420); return NS_OK; } } while (false); |
| 3421 | |
| 3422 | RefPtr<PresShell> presShell = doc->GetPresShell(); |
| 3423 | 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" , 3423); return NS_OK; } } while (false); |
| 3424 | |
| 3425 | if (aType == MOVEFOCUS_FIRST) { |
| 3426 | if (!aStartContent) { |
| 3427 | startContent = rootElement; |
| 3428 | } |
| 3429 | return GetNextTabbableContent(presShell, startContent, nullptr, |
| 3430 | startContent, true, 1, false, false, |
| 3431 | aNavigateByKey, false, false, aNextContent); |
| 3432 | } |
| 3433 | if (aType == MOVEFOCUS_LAST) { |
| 3434 | if (!aStartContent) { |
| 3435 | startContent = rootElement; |
| 3436 | } |
| 3437 | return GetNextTabbableContent(presShell, startContent, nullptr, |
| 3438 | startContent, false, 0, false, false, |
| 3439 | aNavigateByKey, false, false, aNextContent); |
| 3440 | } |
| 3441 | |
| 3442 | bool forward = (aType == MOVEFOCUS_FORWARD || aType == MOVEFOCUS_FORWARDDOC || |
| 3443 | aType == MOVEFOCUS_CARET); |
| 3444 | bool doNavigation = true; |
| 3445 | bool ignoreTabIndex = false; |
| 3446 | // when a popup is open, we want to ensure that tab navigation occurs only |
| 3447 | // within the most recently opened panel. If a popup is open, its frame will |
| 3448 | // be stored in popupFrame. |
| 3449 | nsIFrame* popupFrame = nullptr; |
| 3450 | |
| 3451 | int32_t tabIndex = forward ? 1 : 0; |
| 3452 | if (startContent) { |
| 3453 | nsIFrame* frame = startContent->GetPrimaryFrame(); |
| 3454 | tabIndex = (frame && !startContent->IsHTMLElement(nsGkAtoms::area)) |
| 3455 | ? frame->IsFocusable().mTabIndex |
| 3456 | : startContent->IsFocusableWithoutStyle().mTabIndex; |
| 3457 | |
| 3458 | // if the current element isn't tabbable, ignore the tabindex and just |
| 3459 | // look for the next element. The root content won't have a tabindex |
| 3460 | // so just treat this as the beginning of the tab order. |
| 3461 | if (tabIndex < 0) { |
| 3462 | tabIndex = 1; |
| 3463 | if (startContent != rootElement) { |
| 3464 | ignoreTabIndex = true; |
| 3465 | } |
| 3466 | } |
| 3467 | |
| 3468 | // check if the focus is currently inside a popup. Elements such as the |
| 3469 | // autocomplete widget use the noautofocus attribute to allow the focus to |
| 3470 | // remain outside the popup when it is opened. |
| 3471 | if (frame) { |
| 3472 | popupFrame = nsLayoutUtils::GetClosestFrameOfType( |
| 3473 | frame, LayoutFrameType::MenuPopup); |
| 3474 | } |
| 3475 | |
| 3476 | if (popupFrame && !forDocumentNavigation) { |
| 3477 | // Don't navigate outside of a popup, so pretend that the |
| 3478 | // root content is the popup itself |
| 3479 | rootElement = popupFrame->GetContent()->AsElement(); |
| 3480 | 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" , 3480); MOZ_PretendNoReturn(); } } while (0); |
| 3481 | } else if (!forward) { |
| 3482 | // If focus moves backward and when current focused node is root |
| 3483 | // content or <body> element which is editable by contenteditable |
| 3484 | // attribute, focus should move to its parent document. |
| 3485 | if (startContent == rootElement) { |
| 3486 | doNavigation = false; |
| 3487 | } else { |
| 3488 | Document* doc = startContent->GetComposedDoc(); |
| 3489 | if (startContent == |
| 3490 | nsLayoutUtils::GetEditableRootContentByContentEditable(doc)) { |
| 3491 | doNavigation = false; |
| 3492 | } |
| 3493 | } |
| 3494 | } |
| 3495 | } else { |
| 3496 | if (aType != MOVEFOCUS_CARET) { |
| 3497 | // if there is no focus, yet a panel is open, focus the first item in |
| 3498 | // the panel |
| 3499 | nsXULPopupManager* pm = nsXULPopupManager::GetInstance(); |
| 3500 | if (pm) { |
| 3501 | popupFrame = pm->GetTopPopup(PopupType::Panel); |
| 3502 | } |
| 3503 | } |
| 3504 | if (popupFrame) { |
| 3505 | // When there is a popup open, and no starting content, start the search |
| 3506 | // at the topmost popup. |
| 3507 | startContent = popupFrame->GetContent(); |
| 3508 | 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" , 3508); MOZ_PretendNoReturn(); } } while (0); |
| 3509 | // Unless we are searching for documents, set the root content to the |
| 3510 | // popup as well, so that we don't tab-navigate outside the popup. |
| 3511 | // When navigating by documents, we start at the popup but can navigate |
| 3512 | // outside of it to look for other panels and documents. |
| 3513 | if (!forDocumentNavigation) { |
| 3514 | rootElement = startContent->AsElement(); |
| 3515 | } |
| 3516 | |
| 3517 | doc = startContent ? startContent->GetComposedDoc() : nullptr; |
| 3518 | } else { |
| 3519 | // Otherwise, for content shells, start from the location of the caret. |
| 3520 | nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell(); |
| 3521 | if (docShell && docShell->ItemType() != nsIDocShellTreeItem::typeChrome) { |
| 3522 | nsCOMPtr<nsIContent> endSelectionContent; |
| 3523 | GetSelectionLocation(doc, presShell, getter_AddRefs(startContent), |
| 3524 | getter_AddRefs(endSelectionContent)); |
| 3525 | // If the selection is on the rootElement, then there is no selection |
| 3526 | if (startContent == rootElement) { |
| 3527 | startContent = nullptr; |
| 3528 | } |
| 3529 | |
| 3530 | if (aType == MOVEFOCUS_CARET) { |
| 3531 | // GetFocusInSelection finds a focusable link near the caret. |
| 3532 | // If there is no start content though, don't do this to avoid |
| 3533 | // focusing something unexpected. |
| 3534 | if (startContent) { |
| 3535 | GetFocusInSelection(aWindow, startContent, endSelectionContent, |
| 3536 | aNextContent); |
| 3537 | } |
| 3538 | return NS_OK; |
| 3539 | } |
| 3540 | |
| 3541 | if (startContent) { |
| 3542 | // when starting from a selection, we always want to find the next or |
| 3543 | // previous element in the document. So the tabindex on elements |
| 3544 | // should be ignored. |
| 3545 | ignoreTabIndex = true; |
| 3546 | // If selection starts from a focusable and tabbable element, we want |
| 3547 | // to make it focused rather than next/previous one. |
| 3548 | if (startContent->IsElement() && startContent->GetPrimaryFrame() && |
| 3549 | startContent->GetPrimaryFrame()->IsFocusable().IsTabbable()) { |
| 3550 | startContent = |
| 3551 | forward ? (startContent->GetPreviousSibling() |
| 3552 | ? startContent->GetPreviousSibling() |
| 3553 | // We don't need to get previous leaf node |
| 3554 | // because it may be too far from |
| 3555 | // startContent. We just want the previous |
| 3556 | // node immediately before startContent. |
| 3557 | : startContent->GetParent()) |
| 3558 | // We want the next node immdiately after startContent. |
| 3559 | // Therefore, we don't want its first child. |
| 3560 | : startContent->GetNextNonChildNode(); |
| 3561 | // If we reached the root element, we should treat it as there is no |
| 3562 | // selection as same as above. |
| 3563 | if (startContent == rootElement) { |
| 3564 | startContent = nullptr; |
| 3565 | } |
| 3566 | } |
| 3567 | } |
| 3568 | } |
| 3569 | |
| 3570 | if (!startContent) { |
| 3571 | // otherwise, just use the root content as the starting point |
| 3572 | startContent = rootElement; |
| 3573 | 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" , 3573); return NS_OK; } } while (false); |
| 3574 | } |
| 3575 | } |
| 3576 | } |
| 3577 | |
| 3578 | // Check if the starting content is the same as the content assigned to the |
| 3579 | // retargetdocumentfocus attribute. Is so, we don't want to start searching |
| 3580 | // from there but instead from the beginning of the document. Otherwise, the |
| 3581 | // content that appears before the retargetdocumentfocus element will never |
| 3582 | // get checked as it will be skipped when the focus is retargetted to it. |
| 3583 | if (forDocumentNavigation && nsContentUtils::IsChromeDoc(doc)) { |
| 3584 | nsAutoString retarget; |
| 3585 | |
| 3586 | if (rootElement->GetAttr(nsGkAtoms::retargetdocumentfocus, retarget)) { |
| 3587 | nsIContent* retargetElement = doc->GetElementById(retarget); |
| 3588 | // The common case here is the urlbar where focus is on the anonymous |
| 3589 | // input inside the textbox, but the retargetdocumentfocus attribute |
| 3590 | // refers to the textbox. The Contains check will return false and the |
| 3591 | // IsInclusiveDescendantOf check will return true in this case. |
| 3592 | if (retargetElement && |
| 3593 | (retargetElement == startContent || |
| 3594 | (!retargetElement->Contains(startContent) && |
| 3595 | startContent->IsInclusiveDescendantOf(retargetElement)))) { |
| 3596 | startContent = rootElement; |
| 3597 | } |
| 3598 | } |
| 3599 | } |
| 3600 | |
| 3601 | 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" , 3601); MOZ_PretendNoReturn(); } } while (0); |
| 3602 | |
| 3603 | // keep a reference to the starting content. If we find that again, it means |
| 3604 | // we've iterated around completely and we don't want to adjust the focus. |
| 3605 | // The skipOriginalContentCheck will be set to true only for the first time |
| 3606 | // GetNextTabbableContent is called. This ensures that we don't break out |
| 3607 | // when nothing is focused to start with. Specifically, |
| 3608 | // GetNextTabbableContent first checks the root content -- which happens to |
| 3609 | // be the same as the start content -- when nothing is focused and tabbing |
| 3610 | // forward. Without skipOriginalContentCheck set to true, we'd end up |
| 3611 | // returning right away and focusing nothing. Luckily, GetNextTabbableContent |
| 3612 | // will never wrap around on its own, and can only return the original |
| 3613 | // content when it is called a second time or later. |
| 3614 | bool skipOriginalContentCheck = true; |
| 3615 | const nsCOMPtr<nsIContent> originalStartContent = startContent; |
| 3616 | |
| 3617 | 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); }; |
| 3618 | 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) |
| 3619 | 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) |
| 3620 | 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); |
| 3621 | |
| 3622 | while (doc) { |
| 3623 | if (doNavigation) { |
| 3624 | nsCOMPtr<nsIContent> nextFocus; |
| 3625 | // TODO: MOZ_KnownLive is reruired due to bug 1770680 |
| 3626 | nsresult rv = GetNextTabbableContent( |
| 3627 | presShell, rootElement, |
| 3628 | MOZ_KnownLive(skipOriginalContentCheck ? nullptr(skipOriginalContentCheck ? nullptr : originalStartContent.get ()) |
| 3629 | : originalStartContent.get())(skipOriginalContentCheck ? nullptr : originalStartContent.get ()), |
| 3630 | startContent, forward, tabIndex, ignoreTabIndex, |
| 3631 | forDocumentNavigation, aNavigateByKey, false, false, |
| 3632 | getter_AddRefs(nextFocus)); |
| 3633 | 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" , 3633); return rv; } } while (false); |
| 3634 | if (rv == NS_SUCCESS_DOM_NO_OPERATION) { |
| 3635 | // Navigation was redirected to a child process, so just return. |
| 3636 | return NS_OK; |
| 3637 | } |
| 3638 | |
| 3639 | // found a content node to focus. |
| 3640 | if (nextFocus) { |
| 3641 | 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); }; |
| 3642 | |
| 3643 | // as long as the found node was not the same as the starting node, |
| 3644 | // set it as the return value. For document navigation, we can return |
| 3645 | // the same element in case there is only one content node that could |
| 3646 | // be returned, for example, in a child process document. |
| 3647 | if (nextFocus != originalStartContent || forDocumentNavigation) { |
| 3648 | nextFocus.forget(aNextContent); |
| 3649 | } |
| 3650 | return NS_OK; |
| 3651 | } |
| 3652 | |
| 3653 | if (popupFrame && !forDocumentNavigation) { |
| 3654 | // in a popup, so start again from the beginning of the popup. However, |
| 3655 | // if we already started at the beginning, then there isn't anything to |
| 3656 | // focus, so just return |
| 3657 | if (startContent != rootElement) { |
| 3658 | startContent = rootElement; |
| 3659 | tabIndex = forward ? 1 : 0; |
| 3660 | continue; |
| 3661 | } |
| 3662 | return NS_OK; |
| 3663 | } |
| 3664 | } |
| 3665 | |
| 3666 | doNavigation = true; |
| 3667 | skipOriginalContentCheck = forDocumentNavigation; |
| 3668 | ignoreTabIndex = false; |
| 3669 | |
| 3670 | if (aNoParentTraversal) { |
| 3671 | if (startContent == rootElement) { |
| 3672 | return NS_OK; |
| 3673 | } |
| 3674 | |
| 3675 | startContent = rootElement; |
| 3676 | tabIndex = forward ? 1 : 0; |
| 3677 | continue; |
| 3678 | } |
| 3679 | |
| 3680 | // Reached the beginning or end of the document. Next, navigate up to the |
| 3681 | // parent document and try again. |
| 3682 | nsCOMPtr<nsPIDOMWindowOuter> piWindow = doc->GetWindow(); |
| 3683 | 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" , 3683); return NS_ERROR_FAILURE; } } while (false); |
| 3684 | |
| 3685 | nsCOMPtr<nsIDocShell> docShell = piWindow->GetDocShell(); |
| 3686 | 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" , 3686); return NS_ERROR_FAILURE; } } while (false); |
| 3687 | |
| 3688 | // Get the frame element this window is inside and, from that, get the |
| 3689 | // parent document and presshell. If there is no enclosing frame element, |
| 3690 | // then this is a top-level, embedded or remote window. |
| 3691 | startContent = piWindow->GetFrameElementInternal(); |
| 3692 | if (startContent) { |
| 3693 | doc = startContent->GetComposedDoc(); |
| 3694 | 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" , 3694); return NS_ERROR_FAILURE; } } while (false); |
| 3695 | |
| 3696 | rootElement = doc->GetRootElement(); |
| 3697 | presShell = doc->GetPresShell(); |
| 3698 | |
| 3699 | // We can focus the root element now that we have moved to another |
| 3700 | // document. |
| 3701 | mayFocusRoot = true; |
| 3702 | |
| 3703 | nsIFrame* frame = startContent->GetPrimaryFrame(); |
| 3704 | if (!frame) { |
| 3705 | return NS_OK; |
| 3706 | } |
| 3707 | |
| 3708 | tabIndex = frame->IsFocusable().mTabIndex; |
| 3709 | if (tabIndex < 0) { |
| 3710 | tabIndex = 1; |
| 3711 | ignoreTabIndex = true; |
| 3712 | } |
| 3713 | |
| 3714 | // if the frame is inside a popup, make sure to scan only within the |
| 3715 | // popup. This handles the situation of tabbing amongst elements |
| 3716 | // inside an iframe which is itself inside a popup. Otherwise, |
| 3717 | // navigation would move outside the popup when tabbing outside the |
| 3718 | // iframe. |
| 3719 | if (!forDocumentNavigation) { |
| 3720 | popupFrame = nsLayoutUtils::GetClosestFrameOfType( |
| 3721 | frame, LayoutFrameType::MenuPopup); |
| 3722 | if (popupFrame) { |
| 3723 | rootElement = popupFrame->GetContent()->AsElement(); |
| 3724 | 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" , 3724); MOZ_PretendNoReturn(); } } while (0); |
| 3725 | } |
| 3726 | } |
| 3727 | } else { |
| 3728 | if (aNavigateByKey) { |
| 3729 | // There is no parent, so move the focus to the parent process. |
| 3730 | if (auto* child = BrowserChild::GetFrom(docShell)) { |
| 3731 | child->SendMoveFocus(forward, forDocumentNavigation); |
| 3732 | // Blur the current element. |
| 3733 | RefPtr<BrowsingContext> focusedBC = GetFocusedBrowsingContext(); |
| 3734 | if (focusedBC && focusedBC->IsInProcess()) { |
| 3735 | Blur(focusedBC, nullptr, true, true, false, |
| 3736 | GenerateFocusActionId()); |
| 3737 | } else { |
| 3738 | nsCOMPtr<nsPIDOMWindowOuter> window = docShell->GetWindow(); |
| 3739 | window->SetFocusedElement(nullptr); |
| 3740 | } |
| 3741 | return NS_OK; |
| 3742 | } |
| 3743 | } |
| 3744 | |
| 3745 | // If we have reached the end of the top-level document, focus the |
| 3746 | // first element in the top-level document. This should always happen |
| 3747 | // when navigating by document forwards but when navigating backwards, |
| 3748 | // only do this if we started in another document or within a popup frame. |
| 3749 | // If the focus started in this window outside a popup however, we should |
| 3750 | // continue by looping around to the end again. |
| 3751 | if (forDocumentNavigation && (forward || mayFocusRoot || popupFrame)) { |
| 3752 | // HTML content documents can have their root element focused by |
| 3753 | // pressing F6(a focus ring appears around the entire content area |
| 3754 | // frame). This root appears in the tab order before all of the elements |
| 3755 | // in the document. Chrome documents however cannot be focused directly, |
| 3756 | // so instead we focus the first focusable element within the window. |
| 3757 | // For example, the urlbar. |
| 3758 | RefPtr<Element> rootElementForFocus = |
| 3759 | GetRootForFocus(piWindow, doc, true, true); |
| 3760 | return FocusFirst(rootElementForFocus, aNextContent, |
| 3761 | true /* aReachedToEndForDocumentNavigation */); |
| 3762 | } |
| 3763 | |
| 3764 | // Once we have hit the top-level and have iterated to the end again, we |
| 3765 | // just want to break out next time we hit this spot to prevent infinite |
| 3766 | // iteration. |
| 3767 | mayFocusRoot = true; |
| 3768 | |
| 3769 | // reset the tab index and start again from the beginning or end |
| 3770 | startContent = rootElement; |
| 3771 | tabIndex = forward ? 1 : 0; |
| 3772 | } |
| 3773 | |
| 3774 | // wrapped all the way around and didn't find anything to move the focus |
| 3775 | // to, so just break out |
| 3776 | if (startContent == originalStartContent) { |
| 3777 | break; |
| 3778 | } |
| 3779 | } |
| 3780 | |
| 3781 | return NS_OK; |
| 3782 | } |
| 3783 | |
| 3784 | uint32_t nsFocusManager::ProgrammaticFocusFlags(const FocusOptions& aOptions) { |
| 3785 | uint32_t flags = FLAG_BYJS; |
| 3786 | if (aOptions.mPreventScroll) { |
| 3787 | flags |= FLAG_NOSCROLL; |
| 3788 | } |
| 3789 | if (aOptions.mFocusVisible.WasPassed()) { |
| 3790 | flags |= aOptions.mFocusVisible.Value() ? FLAG_SHOWRING : FLAG_NOSHOWRING; |
| 3791 | } |
| 3792 | if (UserActivation::IsHandlingKeyboardInput()) { |
| 3793 | flags |= FLAG_BYKEY; |
| 3794 | } |
| 3795 | // TODO: We could do a similar thing if we're handling mouse input, but that |
| 3796 | // changes focusability of some elements so may be more risky. |
| 3797 | return flags; |
| 3798 | } |
| 3799 | |
| 3800 | static bool IsHostOrSlot(const nsIContent* aContent) { |
| 3801 | return aContent && (aContent->GetShadowRoot() || |
| 3802 | aContent->IsHTMLElement(nsGkAtoms::slot)); |
| 3803 | } |
| 3804 | |
| 3805 | // Helper class to iterate contents in scope by traversing flattened tree |
| 3806 | // in tree order |
| 3807 | class MOZ_STACK_CLASS ScopedContentTraversal { |
| 3808 | public: |
| 3809 | ScopedContentTraversal(nsIContent* aStartContent, nsIContent* aOwner) |
| 3810 | : mCurrent(aStartContent), mOwner(aOwner) { |
| 3811 | 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" , 3811); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartContent" ")"); do { *((volatile int*)__null) = 3811; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3812 | } |
| 3813 | |
| 3814 | void Next(); |
| 3815 | void Prev(); |
| 3816 | |
| 3817 | void Reset() { SetCurrent(mOwner); } |
| 3818 | |
| 3819 | nsIContent* GetCurrent() const { return mCurrent; } |
| 3820 | |
| 3821 | private: |
| 3822 | void SetCurrent(nsIContent* aContent) { mCurrent = aContent; } |
| 3823 | |
| 3824 | nsIContent* mCurrent; |
| 3825 | nsIContent* mOwner; |
| 3826 | }; |
| 3827 | |
| 3828 | void ScopedContentTraversal::Next() { |
| 3829 | 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" , 3829); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mCurrent" ")" ); do { *((volatile int*)__null) = 3829; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3830 | |
| 3831 | // Get mCurrent's first child if it's in the same scope. |
| 3832 | if (!IsHostOrSlot(mCurrent) || mCurrent == mOwner) { |
| 3833 | StyleChildrenIterator iter(mCurrent); |
| 3834 | nsIContent* child = iter.GetNextChild(); |
| 3835 | if (child) { |
| 3836 | SetCurrent(child); |
| 3837 | return; |
| 3838 | } |
| 3839 | } |
| 3840 | |
| 3841 | // If mOwner has no children, END traversal |
| 3842 | if (mCurrent == mOwner) { |
| 3843 | SetCurrent(nullptr); |
| 3844 | return; |
| 3845 | } |
| 3846 | |
| 3847 | nsIContent* current = mCurrent; |
| 3848 | while (1) { |
| 3849 | // Create parent's iterator and move to current |
| 3850 | nsIContent* parent = current->GetFlattenedTreeParent(); |
| 3851 | StyleChildrenIterator parentIter(parent); |
| 3852 | parentIter.Seek(current); |
| 3853 | |
| 3854 | // Get next sibling of current |
| 3855 | if (nsIContent* next = parentIter.GetNextChild()) { |
| 3856 | SetCurrent(next); |
| 3857 | return; |
| 3858 | } |
| 3859 | |
| 3860 | // If no next sibling and parent is mOwner, END traversal |
| 3861 | if (parent == mOwner) { |
| 3862 | SetCurrent(nullptr); |
| 3863 | return; |
| 3864 | } |
| 3865 | |
| 3866 | current = parent; |
| 3867 | } |
| 3868 | } |
| 3869 | |
| 3870 | void ScopedContentTraversal::Prev() { |
| 3871 | 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" , 3871); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mCurrent" ")" ); do { *((volatile int*)__null) = 3871; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3872 | |
| 3873 | nsIContent* parent; |
| 3874 | nsIContent* last; |
| 3875 | if (mCurrent == mOwner) { |
| 3876 | // Get last child of mOwner |
| 3877 | StyleChildrenIterator ownerIter(mOwner, false /* aStartAtBeginning */); |
| 3878 | last = ownerIter.GetPreviousChild(); |
| 3879 | |
| 3880 | parent = last; |
| 3881 | } else { |
| 3882 | // Create parent's iterator and move to mCurrent |
| 3883 | parent = mCurrent->GetFlattenedTreeParent(); |
| 3884 | StyleChildrenIterator parentIter(parent); |
| 3885 | parentIter.Seek(mCurrent); |
| 3886 | |
| 3887 | // Get previous sibling |
| 3888 | last = parentIter.GetPreviousChild(); |
| 3889 | } |
| 3890 | |
| 3891 | while (last) { |
| 3892 | parent = last; |
| 3893 | if (IsHostOrSlot(parent)) { |
| 3894 | // Skip contents in other scopes |
| 3895 | break; |
| 3896 | } |
| 3897 | |
| 3898 | // Find last child |
| 3899 | StyleChildrenIterator iter(parent, false /* aStartAtBeginning */); |
| 3900 | last = iter.GetPreviousChild(); |
| 3901 | } |
| 3902 | |
| 3903 | // If parent is mOwner and no previous sibling remains, END traversal |
| 3904 | SetCurrent(parent == mOwner ? nullptr : parent); |
| 3905 | } |
| 3906 | |
| 3907 | static bool IsOpenPopoverWithInvoker(nsIContent* aContent) { |
| 3908 | if (auto* popover = Element::FromNode(aContent)) { |
| 3909 | return popover && popover->IsPopoverOpen() && |
| 3910 | popover->GetPopoverData()->GetInvoker(); |
| 3911 | } |
| 3912 | return false; |
| 3913 | } |
| 3914 | |
| 3915 | static nsIContent* InvokerForPopoverShowingState(nsIContent* aContent) { |
| 3916 | Element* invoker = Element::FromNode(aContent); |
| 3917 | if (!invoker) { |
| 3918 | return nullptr; |
| 3919 | } |
| 3920 | |
| 3921 | nsGenericHTMLElement* popover = invoker->GetEffectivePopoverTargetElement(); |
| 3922 | if (popover && popover->IsPopoverOpen() && |
| 3923 | popover->GetPopoverData()->GetInvoker() == invoker) { |
| 3924 | return aContent; |
| 3925 | } |
| 3926 | |
| 3927 | return nullptr; |
| 3928 | } |
| 3929 | |
| 3930 | /** |
| 3931 | * Returns scope owner of aContent. |
| 3932 | * A scope owner is either a shadow host, or slot. |
| 3933 | */ |
| 3934 | static nsIContent* FindScopeOwner(nsIContent* aContent) { |
| 3935 | nsIContent* currentContent = aContent; |
| 3936 | while (currentContent) { |
| 3937 | nsIContent* parent = currentContent->GetFlattenedTreeParent(); |
| 3938 | |
| 3939 | // Shadow host / Slot |
| 3940 | if (IsHostOrSlot(parent)) { |
| 3941 | return parent; |
| 3942 | } |
| 3943 | |
| 3944 | currentContent = parent; |
| 3945 | } |
| 3946 | |
| 3947 | return nullptr; |
| 3948 | } |
| 3949 | |
| 3950 | /** |
| 3951 | * Host and Slot elements need to be handled as if they had tabindex 0 even |
| 3952 | * when they don't have the attribute. This is a helper method to get the |
| 3953 | * right value for focus navigation. If aIsFocusable is passed, it is set to |
| 3954 | * true if the element itself is focusable. |
| 3955 | */ |
| 3956 | static int32_t HostOrSlotTabIndexValue(const nsIContent* aContent, |
| 3957 | bool* aIsFocusable = nullptr) { |
| 3958 | 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" , 3958); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsHostOrSlot(aContent)" ")"); do { *((volatile int*)__null) = 3958; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3959 | |
| 3960 | if (aIsFocusable) { |
| 3961 | nsIFrame* frame = aContent->GetPrimaryFrame(); |
| 3962 | *aIsFocusable = frame && frame->IsFocusable().mTabIndex >= 0; |
| 3963 | } |
| 3964 | |
| 3965 | const nsAttrValue* attrVal = |
| 3966 | aContent->AsElement()->GetParsedAttr(nsGkAtoms::tabindex); |
| 3967 | if (!attrVal) { |
| 3968 | return 0; |
| 3969 | } |
| 3970 | |
| 3971 | if (attrVal->Type() == nsAttrValue::eInteger) { |
| 3972 | return attrVal->GetIntegerValue(); |
| 3973 | } |
| 3974 | |
| 3975 | return -1; |
| 3976 | } |
| 3977 | |
| 3978 | nsIContent* nsFocusManager::GetNextTabbableContentInScope( |
| 3979 | nsIContent* aOwner, nsIContent* aStartContent, |
| 3980 | nsIContent* aOriginalStartContent, bool aForward, int32_t aCurrentTabIndex, |
| 3981 | bool aIgnoreTabIndex, bool aForDocumentNavigation, bool aNavigateByKey, |
| 3982 | bool aSkipOwner, bool aReachedToEndForDocumentNavigation) { |
| 3983 | 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" , 3985); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner)" ") (" "Scope owner should be host, slot or an open popover with invoker set." ")"); do { *((volatile int*)__null) = 3985; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 3984 | 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" , 3985); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner)" ") (" "Scope owner should be host, slot or an open popover with invoker set." ")"); do { *((volatile int*)__null) = 3985; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 3985 | "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" , 3985); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsHostOrSlot(aOwner) || IsOpenPopoverWithInvoker(aOwner)" ") (" "Scope owner should be host, slot or an open popover with invoker set." ")"); do { *((volatile int*)__null) = 3985; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3986 | |
| 3987 | // XXX: Why don't we ignore tabindex when the current tabindex < 0? |
| 3988 | 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" , 3988); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIgnoreTabIndex" ")"); do { *((volatile int*)__null) = 3988; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 3989 | |
| 3990 | if (!aSkipOwner && (aForward && aOwner == aStartContent)) { |
| 3991 | if (nsIFrame* frame = aOwner->GetPrimaryFrame()) { |
| 3992 | auto focusable = frame->IsFocusable(); |
| 3993 | if (focusable && focusable.mTabIndex >= 0) { |
| 3994 | return aOwner; |
| 3995 | } |
| 3996 | } |
| 3997 | } |
| 3998 | |
| 3999 | // |
| 4000 | // Iterate contents in scope |
| 4001 | // |
| 4002 | ScopedContentTraversal contentTraversal(aStartContent, aOwner); |
| 4003 | nsCOMPtr<nsIContent> iterContent; |
| 4004 | nsIContent* firstNonChromeOnly = |
| 4005 | aStartContent->IsInNativeAnonymousSubtree() |
| 4006 | ? aStartContent->FindFirstNonChromeOnlyAccessContent() |
| 4007 | : nullptr; |
| 4008 | while (1) { |
| 4009 | // Iterate tab index to find corresponding contents in scope |
| 4010 | |
| 4011 | while (1) { |
| 4012 | // Iterate remaining contents in scope to find next content to focus |
| 4013 | |
| 4014 | // Get next content |
| 4015 | aForward ? contentTraversal.Next() : contentTraversal.Prev(); |
| 4016 | iterContent = contentTraversal.GetCurrent(); |
| 4017 | |
| 4018 | if (firstNonChromeOnly && firstNonChromeOnly == iterContent) { |
| 4019 | // We just broke out from the native anonymous content, so move |
| 4020 | // to the previous/next node of the native anonymous owner. |
| 4021 | if (aForward) { |
| 4022 | contentTraversal.Next(); |
| 4023 | } else { |
| 4024 | contentTraversal.Prev(); |
| 4025 | } |
| 4026 | iterContent = contentTraversal.GetCurrent(); |
| 4027 | } |
| 4028 | if (!iterContent) { |
| 4029 | // Reach the end |
| 4030 | break; |
| 4031 | } |
| 4032 | |
| 4033 | int32_t tabIndex = 0; |
| 4034 | if (iterContent->IsInNativeAnonymousSubtree() && |
| 4035 | iterContent->GetPrimaryFrame()) { |
| 4036 | tabIndex = iterContent->GetPrimaryFrame()->IsFocusable().mTabIndex; |
| 4037 | } else if (IsHostOrSlot(iterContent)) { |
| 4038 | tabIndex = HostOrSlotTabIndexValue(iterContent); |
| 4039 | } else { |
| 4040 | nsIFrame* frame = iterContent->GetPrimaryFrame(); |
| 4041 | if (!frame) { |
| 4042 | continue; |
| 4043 | } |
| 4044 | tabIndex = frame->IsFocusable().mTabIndex; |
| 4045 | } |
| 4046 | if (tabIndex < 0 || !(aIgnoreTabIndex || tabIndex == aCurrentTabIndex)) { |
| 4047 | continue; |
| 4048 | } |
| 4049 | |
| 4050 | if (!IsHostOrSlot(iterContent)) { |
| 4051 | nsCOMPtr<nsIContent> elementInFrame; |
| 4052 | bool checkSubDocument = true; |
| 4053 | if (aForDocumentNavigation && |
| 4054 | TryDocumentNavigation(iterContent, &checkSubDocument, |
| 4055 | getter_AddRefs(elementInFrame))) { |
| 4056 | return elementInFrame; |
| 4057 | } |
| 4058 | if (!checkSubDocument) { |
| 4059 | if (aReachedToEndForDocumentNavigation && |
| 4060 | StaticPrefs::dom_disable_tab_focus_to_root_element() && |
| 4061 | nsContentUtils::IsChromeDoc(iterContent->GetComposedDoc())) { |
| 4062 | // aReachedToEndForDocumentNavigation is true means |
| 4063 | // 1. This is a document navigation (i.e, VK_F6, Control + Tab) |
| 4064 | // 2. This is the top-level document (Note that we may start from |
| 4065 | // a subdocument) |
| 4066 | // 3. We've searched through the this top-level document already |
| 4067 | if (!GetRootForChildDocument(iterContent)) { |
| 4068 | // We'd like to focus the first focusable element of this |
| 4069 | // top-level chrome document. |
| 4070 | return iterContent; |
| 4071 | } |
| 4072 | } |
| 4073 | continue; |
| 4074 | } |
| 4075 | |
| 4076 | if (TryToMoveFocusToSubDocument(iterContent, aOriginalStartContent, |
| 4077 | aForward, aForDocumentNavigation, |
| 4078 | aNavigateByKey, |
| 4079 | aReachedToEndForDocumentNavigation, |
| 4080 | getter_AddRefs(elementInFrame))) { |
| 4081 | return elementInFrame; |
| 4082 | } |
| 4083 | |
| 4084 | // Found content to focus |
| 4085 | return iterContent; |
| 4086 | } |
| 4087 | |
| 4088 | // Search in scope owned by iterContent |
| 4089 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
| 4090 | iterContent, iterContent, aOriginalStartContent, aForward, |
| 4091 | aForward ? 1 : 0, aIgnoreTabIndex, aForDocumentNavigation, |
| 4092 | aNavigateByKey, false /* aSkipOwner */, |
| 4093 | aReachedToEndForDocumentNavigation); |
| 4094 | if (contentToFocus) { |
| 4095 | return contentToFocus; |
| 4096 | } |
| 4097 | }; |
| 4098 | |
| 4099 | // If already at lowest priority tab (0), end search completely. |
| 4100 | // A bit counterintuitive but true, tabindex order goes 1, 2, ... 32767, 0 |
| 4101 | if (aCurrentTabIndex == (aForward ? 0 : 1)) { |
| 4102 | break; |
| 4103 | } |
| 4104 | |
| 4105 | // We've been just trying to find some focusable element, and haven't, so |
| 4106 | // bail out. |
| 4107 | if (aIgnoreTabIndex) { |
| 4108 | break; |
| 4109 | } |
| 4110 | |
| 4111 | // Continue looking for next highest priority tabindex |
| 4112 | aCurrentTabIndex = GetNextTabIndex(aOwner, aCurrentTabIndex, aForward); |
| 4113 | contentTraversal.Reset(); |
| 4114 | } |
| 4115 | |
| 4116 | // Return scope owner at last for backward navigation if its tabindex |
| 4117 | // is non-negative |
| 4118 | if (!aSkipOwner && !aForward) { |
| 4119 | if (nsIFrame* frame = aOwner->GetPrimaryFrame()) { |
| 4120 | auto focusable = frame->IsFocusable(); |
| 4121 | if (focusable && focusable.mTabIndex >= 0) { |
| 4122 | return aOwner; |
| 4123 | } |
| 4124 | } |
| 4125 | } |
| 4126 | |
| 4127 | return nullptr; |
| 4128 | } |
| 4129 | |
| 4130 | nsIContent* nsFocusManager::GetNextTabbableContentInAncestorScopes( |
| 4131 | nsIContent* aStartOwner, nsCOMPtr<nsIContent>& aStartContent /* inout */, |
| 4132 | nsIContent* aOriginalStartContent, bool aForward, int32_t* aCurrentTabIndex, |
| 4133 | bool* aIgnoreTabIndex, bool aForDocumentNavigation, bool aNavigateByKey, |
| 4134 | bool aReachedToEndForDocumentNavigation) { |
| 4135 | 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" , 4136); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartOwner == FindScopeOwner(aStartContent)" ") (" "aStartOWner should be the scope owner of aStartContent" ")"); do { *((volatile int*)__null) = 4136; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4136 | "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" , 4136); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartOwner == FindScopeOwner(aStartContent)" ") (" "aStartOWner should be the scope owner of aStartContent" ")"); do { *((volatile int*)__null) = 4136; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4137 | 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" , 4137); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsHostOrSlot(aStartOwner)" ") (" "scope owner should be host or slot" ")"); do { *((volatile int*)__null) = 4137; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 4138 | |
| 4139 | nsCOMPtr<nsIContent> owner = aStartOwner; |
| 4140 | nsCOMPtr<nsIContent> startContent = aStartContent; |
| 4141 | while (IsHostOrSlot(owner)) { |
| 4142 | int32_t tabIndex = 0; |
| 4143 | if (IsHostOrSlot(startContent)) { |
| 4144 | tabIndex = HostOrSlotTabIndexValue(startContent); |
| 4145 | } else if (nsIFrame* frame = startContent->GetPrimaryFrame()) { |
| 4146 | tabIndex = frame->IsFocusable().mTabIndex; |
| 4147 | } else { |
| 4148 | tabIndex = startContent->IsFocusableWithoutStyle().mTabIndex; |
| 4149 | } |
| 4150 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
| 4151 | owner, startContent, aOriginalStartContent, aForward, tabIndex, |
| 4152 | tabIndex < 0, aForDocumentNavigation, aNavigateByKey, |
| 4153 | false /* aSkipOwner */, aReachedToEndForDocumentNavigation); |
| 4154 | if (contentToFocus) { |
| 4155 | return contentToFocus; |
| 4156 | } |
| 4157 | |
| 4158 | startContent = owner; |
| 4159 | owner = FindScopeOwner(startContent); |
| 4160 | } |
| 4161 | |
| 4162 | // If not found in shadow DOM, search from the top level shadow host in light |
| 4163 | // DOM |
| 4164 | aStartContent = startContent; |
| 4165 | *aCurrentTabIndex = HostOrSlotTabIndexValue(startContent); |
| 4166 | |
| 4167 | if (*aCurrentTabIndex < 0) { |
| 4168 | *aIgnoreTabIndex = true; |
| 4169 | } |
| 4170 | |
| 4171 | return nullptr; |
| 4172 | } |
| 4173 | |
| 4174 | static nsIContent* GetTopLevelScopeOwner(nsIContent* aContent) { |
| 4175 | nsIContent* topLevelScopeOwner = nullptr; |
| 4176 | while (aContent) { |
| 4177 | if (HTMLSlotElement* slot = aContent->GetAssignedSlot()) { |
| 4178 | aContent = slot; |
| 4179 | topLevelScopeOwner = aContent; |
| 4180 | } else if (ShadowRoot* shadowRoot = aContent->GetContainingShadow()) { |
| 4181 | aContent = shadowRoot->Host(); |
| 4182 | topLevelScopeOwner = aContent; |
| 4183 | } else { |
| 4184 | aContent = aContent->GetParent(); |
| 4185 | if (aContent && (HTMLSlotElement::FromNode(aContent) || |
| 4186 | IsOpenPopoverWithInvoker(aContent))) { |
| 4187 | topLevelScopeOwner = aContent; |
| 4188 | } |
| 4189 | } |
| 4190 | } |
| 4191 | |
| 4192 | return topLevelScopeOwner; |
| 4193 | } |
| 4194 | |
| 4195 | nsresult nsFocusManager::GetNextTabbableContent( |
| 4196 | PresShell* aPresShell, nsIContent* aRootContent, |
| 4197 | nsIContent* aOriginalStartContent, nsIContent* aStartContent, bool aForward, |
| 4198 | int32_t aCurrentTabIndex, bool aIgnoreTabIndex, bool aForDocumentNavigation, |
| 4199 | bool aNavigateByKey, bool aSkipPopover, |
| 4200 | bool aReachedToEndForDocumentNavigation, nsIContent** aResultContent) { |
| 4201 | *aResultContent = nullptr; |
| 4202 | |
| 4203 | if (!aStartContent) { |
| 4204 | return NS_OK; |
| 4205 | } |
| 4206 | |
| 4207 | nsCOMPtr<nsIContent> startContent = aStartContent; |
| 4208 | nsCOMPtr<nsIContent> currentTopLevelScopeOwner = |
| 4209 | GetTopLevelScopeOwner(startContent); |
| 4210 | |
| 4211 | 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); }; |
| 4212 | 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); |
| 4213 | |
| 4214 | // If startContent is a shadow host or slot in forward navigation, |
| 4215 | // search in scope owned by startContent |
| 4216 | if (aForward && IsHostOrSlot(startContent)) { |
| 4217 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
| 4218 | startContent, startContent, aOriginalStartContent, aForward, 1, |
| 4219 | aIgnoreTabIndex, aForDocumentNavigation, aNavigateByKey, |
| 4220 | true /* aSkipOwner */, aReachedToEndForDocumentNavigation); |
| 4221 | if (contentToFocus) { |
| 4222 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
| 4223 | return NS_OK; |
| 4224 | } |
| 4225 | } |
| 4226 | |
| 4227 | // If startContent is a popover invoker, search the popover scope. |
| 4228 | if (!aSkipPopover) { |
| 4229 | if (InvokerForPopoverShowingState(startContent)) { |
| 4230 | if (aForward) { |
| 4231 | RefPtr<nsIContent> popover = |
| 4232 | startContent->GetEffectivePopoverTargetElement(); |
| 4233 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
| 4234 | popover, popover, aOriginalStartContent, aForward, 1, |
| 4235 | aIgnoreTabIndex, aForDocumentNavigation, aNavigateByKey, |
| 4236 | true /* aSkipOwner */, aReachedToEndForDocumentNavigation); |
| 4237 | if (contentToFocus) { |
| 4238 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
| 4239 | return NS_OK; |
| 4240 | } |
| 4241 | } |
| 4242 | } |
| 4243 | } |
| 4244 | |
| 4245 | // If startContent is in a scope owned by Shadow DOM search from scope |
| 4246 | // including startContent |
| 4247 | if (nsCOMPtr<nsIContent> owner = FindScopeOwner(startContent)) { |
| 4248 | nsIContent* contentToFocus = GetNextTabbableContentInAncestorScopes( |
| 4249 | owner, startContent /* inout */, aOriginalStartContent, aForward, |
| 4250 | &aCurrentTabIndex, &aIgnoreTabIndex, aForDocumentNavigation, |
| 4251 | aNavigateByKey, aReachedToEndForDocumentNavigation); |
| 4252 | if (contentToFocus) { |
| 4253 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
| 4254 | return NS_OK; |
| 4255 | } |
| 4256 | } |
| 4257 | |
| 4258 | // If we reach here, it means no next tabbable content in shadow DOM. |
| 4259 | // We need to continue searching in light DOM, starting at the top level |
| 4260 | // shadow host in light DOM (updated startContent) and its tabindex |
| 4261 | // (updated aCurrentTabIndex). |
| 4262 | 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" , 4263); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!FindScopeOwner(startContent)" ") (" "startContent should not be owned by Shadow DOM at this point" ")"); do { *((volatile int*)__null) = 4263; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4263 | "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" , 4263); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!FindScopeOwner(startContent)" ") (" "startContent should not be owned by Shadow DOM at this point" ")"); do { *((volatile int*)__null) = 4263; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4264 | |
| 4265 | nsPresContext* presContext = aPresShell->GetPresContext(); |
| 4266 | |
| 4267 | bool getNextFrame = true; |
| 4268 | nsCOMPtr<nsIContent> iterStartContent = startContent; |
| 4269 | nsIContent* topLevelScopeStartContent = startContent; |
| 4270 | // Iterate tab index to find corresponding contents |
| 4271 | while (1) { |
| 4272 | nsIFrame* frame = iterStartContent->GetPrimaryFrame(); |
| 4273 | // if there is no frame, look for another content node that has a frame |
| 4274 | while (!frame) { |
| 4275 | // if the root content doesn't have a frame, just return |
| 4276 | if (iterStartContent == aRootContent) { |
| 4277 | return NS_OK; |
| 4278 | } |
| 4279 | |
| 4280 | // look for the next or previous content node in tree order |
| 4281 | iterStartContent = aForward ? iterStartContent->GetNextNode() |
| 4282 | : iterStartContent->GetPrevNode(); |
| 4283 | if (!iterStartContent) { |
| 4284 | break; |
| 4285 | } |
| 4286 | |
| 4287 | frame = iterStartContent->GetPrimaryFrame(); |
| 4288 | // Host without frame, enter its scope. |
| 4289 | if (!frame && iterStartContent->GetShadowRoot()) { |
| 4290 | int32_t tabIndex = HostOrSlotTabIndexValue(iterStartContent); |
| 4291 | if (tabIndex >= 0 && |
| 4292 | (aIgnoreTabIndex || aCurrentTabIndex == tabIndex)) { |
| 4293 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
| 4294 | iterStartContent, iterStartContent, aOriginalStartContent, |
| 4295 | aForward, aForward ? 1 : 0, aIgnoreTabIndex, |
| 4296 | aForDocumentNavigation, aNavigateByKey, true /* aSkipOwner */, |
| 4297 | aReachedToEndForDocumentNavigation); |
| 4298 | if (contentToFocus) { |
| 4299 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
| 4300 | return NS_OK; |
| 4301 | } |
| 4302 | } |
| 4303 | } |
| 4304 | // we've already skipped over the initial focused content, so we |
| 4305 | // don't want to traverse frames. |
| 4306 | getNextFrame = false; |
| 4307 | } |
| 4308 | |
| 4309 | Maybe<nsFrameIterator> frameIterator; |
| 4310 | if (frame) { |
| 4311 | // For tab navigation, pass false for aSkipPopupChecks so that we don't |
| 4312 | // iterate into or out of a popup. For document naviation pass true to |
| 4313 | // ignore these boundaries. |
| 4314 | frameIterator.emplace(presContext, frame, nsFrameIterator::Type::PreOrder, |
| 4315 | false, // aVisual |
| 4316 | false, // aLockInScrollView |
| 4317 | true, // aFollowOOFs |
| 4318 | aForDocumentNavigation // aSkipPopupChecks |
| 4319 | ); |
| 4320 | 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" , 4320); AnnotateMozCrashReason("MOZ_ASSERT" "(" "frameIterator" ")"); do { *((volatile int*)__null) = 4320; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4321 | |
| 4322 | if (iterStartContent == aRootContent) { |
| 4323 | if (!aForward) { |
| 4324 | frameIterator->Last(); |
| 4325 | } else if (aRootContent->IsFocusableWithoutStyle()) { |
| 4326 | frameIterator->Next(); |
| 4327 | } |
| 4328 | frame = frameIterator->CurrentItem(); |
| 4329 | } else if (getNextFrame && |
| 4330 | (!iterStartContent || |
| 4331 | !iterStartContent->IsHTMLElement(nsGkAtoms::area))) { |
| 4332 | // Need to do special check in case we're in an imagemap which has |
| 4333 | // multiple content nodes per frame, so don't skip over the starting |
| 4334 | // frame. |
| 4335 | frame = frameIterator->Traverse(aForward); |
| 4336 | } |
| 4337 | } |
| 4338 | |
| 4339 | nsIContent* oldTopLevelScopeOwner = nullptr; |
| 4340 | // Walk frames to find something tabbable matching aCurrentTabIndex |
| 4341 | while (frame) { |
| 4342 | // Try to find the topmost scope owner, since we want to skip the node |
| 4343 | // that is not owned by document in frame traversal. |
| 4344 | const nsCOMPtr<nsIContent> currentContent = frame->GetContent(); |
| 4345 | if (currentTopLevelScopeOwner) { |
| 4346 | oldTopLevelScopeOwner = currentTopLevelScopeOwner; |
| 4347 | } |
| 4348 | currentTopLevelScopeOwner = GetTopLevelScopeOwner(currentContent); |
| 4349 | |
| 4350 | // We handle popover case separately. |
| 4351 | if (currentTopLevelScopeOwner && |
| 4352 | currentTopLevelScopeOwner == oldTopLevelScopeOwner && |
| 4353 | !IsOpenPopoverWithInvoker(currentTopLevelScopeOwner)) { |
| 4354 | // We're within non-document scope, continue. |
| 4355 | do { |
| 4356 | if (aForward) { |
| 4357 | frameIterator->Next(); |
| 4358 | } else { |
| 4359 | frameIterator->Prev(); |
| 4360 | } |
| 4361 | frame = frameIterator->CurrentItem(); |
| 4362 | // For the usage of GetPrevContinuation, see the comment |
| 4363 | // at the end of while (frame) loop. |
| 4364 | } while (frame && frame->GetPrevContinuation()); |
| 4365 | continue; |
| 4366 | } |
| 4367 | |
| 4368 | // Stepping out popover scope. |
| 4369 | // For forward, search for the next tabbable content after invoker. |
| 4370 | // For backward, we should get back to the invoker if the invoker is |
| 4371 | // focusable. Otherwise search for the next tabbable content after |
| 4372 | // invoker. |
| 4373 | if (oldTopLevelScopeOwner && |
| 4374 | IsOpenPopoverWithInvoker(oldTopLevelScopeOwner) && |
| 4375 | currentTopLevelScopeOwner != oldTopLevelScopeOwner) { |
| 4376 | if (auto* popover = Element::FromNode(oldTopLevelScopeOwner)) { |
| 4377 | RefPtr<nsIContent> invokerContent = |
| 4378 | popover->GetPopoverData()->GetInvoker()->AsContent(); |
| 4379 | RefPtr<nsIContent> rootElement = invokerContent; |
| 4380 | if (auto* doc = invokerContent->GetComposedDoc()) { |
| 4381 | rootElement = doc->GetRootElement(); |
| 4382 | } |
| 4383 | if (aForward) { |
| 4384 | nsIFrame* frame = invokerContent->GetPrimaryFrame(); |
| 4385 | int32_t tabIndex = frame->IsFocusable().mTabIndex; |
| 4386 | if (tabIndex >= 0 && |
| 4387 | (aIgnoreTabIndex || aCurrentTabIndex == tabIndex)) { |
| 4388 | nsresult rv = GetNextTabbableContent( |
| 4389 | aPresShell, rootElement, nullptr, invokerContent, true, |
| 4390 | tabIndex, false, false, aNavigateByKey, true, |
| 4391 | aReachedToEndForDocumentNavigation, aResultContent); |
| 4392 | if (NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1))) && *aResultContent) { |
| 4393 | return rv; |
| 4394 | } |
| 4395 | } |
| 4396 | } else if (invokerContent) { |
| 4397 | nsIFrame* frame = invokerContent->GetPrimaryFrame(); |
| 4398 | if (frame && frame->IsFocusable()) { |
| 4399 | invokerContent.forget(aResultContent); |
| 4400 | return NS_OK; |
| 4401 | } |
| 4402 | nsresult rv = GetNextTabbableContent( |
| 4403 | aPresShell, rootElement, aOriginalStartContent, invokerContent, |
| 4404 | false, 0, true, false, aNavigateByKey, true, |
| 4405 | aReachedToEndForDocumentNavigation, aResultContent); |
| 4406 | if (NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1))) && *aResultContent) { |
| 4407 | return rv; |
| 4408 | } |
| 4409 | } |
| 4410 | } |
| 4411 | } |
| 4412 | |
| 4413 | if (!aForward) { |
| 4414 | if (InvokerForPopoverShowingState(currentContent)) { |
| 4415 | RefPtr<nsIContent> popover = |
| 4416 | currentContent->GetEffectivePopoverTargetElement(); |
| 4417 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
| 4418 | popover, popover, aOriginalStartContent, aForward, 0, |
| 4419 | aIgnoreTabIndex, aForDocumentNavigation, aNavigateByKey, |
| 4420 | true /* aSkipOwner */, aReachedToEndForDocumentNavigation); |
| 4421 | |
| 4422 | if (contentToFocus) { |
| 4423 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
| 4424 | return NS_OK; |
| 4425 | } |
| 4426 | } |
| 4427 | } |
| 4428 | // For document navigation, check if this element is an open panel. Since |
| 4429 | // panels aren't focusable (tabIndex would be -1), we'll just assume that |
| 4430 | // for document navigation, the tabIndex is 0. |
| 4431 | if (aForDocumentNavigation && currentContent && (aCurrentTabIndex == 0) && |
| 4432 | currentContent->IsXULElement(nsGkAtoms::panel)) { |
| 4433 | nsMenuPopupFrame* popupFrame = do_QueryFrame(frame); |
| 4434 | // Check if the panel is open. Closed panels are ignored since you can't |
| 4435 | // focus anything in them. |
| 4436 | if (popupFrame && popupFrame->IsOpen()) { |
| 4437 | // When moving backward, skip the popup we started in otherwise it |
| 4438 | // will be selected again. |
| 4439 | bool validPopup = true; |
| 4440 | if (!aForward) { |
| 4441 | nsIContent* content = topLevelScopeStartContent; |
| 4442 | while (content) { |
| 4443 | if (content == currentContent) { |
| 4444 | validPopup = false; |
| 4445 | break; |
| 4446 | } |
| 4447 | |
| 4448 | content = content->GetParent(); |
| 4449 | } |
| 4450 | } |
| 4451 | |
| 4452 | if (validPopup) { |
| 4453 | // Since a panel isn't focusable itself, find the first focusable |
| 4454 | // content within the popup. If there isn't any focusable content |
| 4455 | // in the popup, skip this popup and continue iterating through the |
| 4456 | // frames. We pass the panel itself (currentContent) as the starting |
| 4457 | // and root content, so that we only find content within the panel. |
| 4458 | // Note also that we pass false for aForDocumentNavigation since we |
| 4459 | // want to locate the first content, not the first document. |
| 4460 | nsresult rv = GetNextTabbableContent( |
| 4461 | aPresShell, currentContent, nullptr, currentContent, true, 1, |
| 4462 | false, false, aNavigateByKey, false, |
| 4463 | aReachedToEndForDocumentNavigation, aResultContent); |
| 4464 | if (NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1))) && *aResultContent) { |
| 4465 | return rv; |
| 4466 | } |
| 4467 | } |
| 4468 | } |
| 4469 | } |
| 4470 | |
| 4471 | // As of now, 2018/04/12, sequential focus navigation is still |
| 4472 | // in the obsolete Shadow DOM specification. |
| 4473 | // http://w3c.github.io/webcomponents/spec/shadow/#sequential-focus-navigation |
| 4474 | // "if ELEMENT is focusable, a shadow host, or a slot element, |
| 4475 | // append ELEMENT to NAVIGATION-ORDER." |
| 4476 | // and later in "For each element ELEMENT in NAVIGATION-ORDER: " |
| 4477 | // hosts and slots are handled before other elements. |
| 4478 | if (currentTopLevelScopeOwner && |
| 4479 | !IsOpenPopoverWithInvoker(currentTopLevelScopeOwner)) { |
| 4480 | bool focusableHostSlot; |
| 4481 | int32_t tabIndex = HostOrSlotTabIndexValue(currentTopLevelScopeOwner, |
| 4482 | &focusableHostSlot); |
| 4483 | // Host or slot itself isn't focusable or going backwards, enter its |
| 4484 | // scope. |
| 4485 | if ((!aForward || !focusableHostSlot) && tabIndex >= 0 && |
| 4486 | (aIgnoreTabIndex || aCurrentTabIndex == tabIndex)) { |
| 4487 | nsIContent* contentToFocus = GetNextTabbableContentInScope( |
| 4488 | currentTopLevelScopeOwner, currentTopLevelScopeOwner, |
| 4489 | aOriginalStartContent, aForward, aForward ? 1 : 0, |
| 4490 | aIgnoreTabIndex, aForDocumentNavigation, aNavigateByKey, |
| 4491 | true /* aSkipOwner */, aReachedToEndForDocumentNavigation); |
| 4492 | if (contentToFocus) { |
| 4493 | NS_ADDREF(*aResultContent = contentToFocus)(*aResultContent = contentToFocus)->AddRef(); |
| 4494 | return NS_OK; |
| 4495 | } |
| 4496 | // If we've wrapped around already, then carry on. |
| 4497 | if (aOriginalStartContent && |
| 4498 | currentTopLevelScopeOwner == |
| 4499 | GetTopLevelScopeOwner(aOriginalStartContent)) { |
| 4500 | // FIXME: Shouldn't this return null instead? aOriginalStartContent |
| 4501 | // isn't focusable after all. |
| 4502 | NS_ADDREF(*aResultContent = aOriginalStartContent)(*aResultContent = aOriginalStartContent)->AddRef(); |
| 4503 | return NS_OK; |
| 4504 | } |
| 4505 | } |
| 4506 | // There is no next tabbable content in currentTopLevelScopeOwner's |
| 4507 | // scope. We should continue the loop in order to skip all contents that |
| 4508 | // is in currentTopLevelScopeOwner's scope. |
| 4509 | continue; |
| 4510 | } |
| 4511 | |
| 4512 | 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" , 4516); 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) = 4516 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 4513 | !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" , 4516); 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) = 4516 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 4514 | 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" , 4516); 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) = 4516 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 4515 | "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" , 4516); 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) = 4516 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 4516 | "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" , 4516); 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) = 4516 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 4517 | |
| 4518 | // TabIndex not set defaults to 0 for form elements, anchors and other |
| 4519 | // elements that are normally focusable. Tabindex defaults to -1 |
| 4520 | // for elements that are not normally focusable. |
| 4521 | // The returned computed tabindex from IsFocusable() is as follows: |
| 4522 | // clang-format off |
| 4523 | // < 0 not tabbable at all |
| 4524 | // == 0 in normal tab order (last after positive tabindexed items) |
| 4525 | // > 0 can be tabbed to in the order specified by this value |
| 4526 | // clang-format on |
| 4527 | int32_t tabIndex = frame->IsFocusable().mTabIndex; |
| 4528 | |
| 4529 | 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); }; |
| 4530 | 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) |
| 4531 | (" 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); |
| 4532 | |
| 4533 | if (tabIndex >= 0) { |
| 4534 | 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" , 4535); MOZ_PretendNoReturn(); } } while (0) |
| 4535 | "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" , 4535); MOZ_PretendNoReturn(); } } while (0); |
| 4536 | if (!aForDocumentNavigation && |
| 4537 | currentContent->IsHTMLElement(nsGkAtoms::img) && |
| 4538 | currentContent->AsElement()->HasAttr(nsGkAtoms::usemap)) { |
| 4539 | // This is an image with a map. Image map areas are not traversed by |
| 4540 | // nsFrameIterator so look for the next or previous area element. |
| 4541 | nsIContent* areaContent = GetNextTabbableMapArea( |
| 4542 | aForward, aCurrentTabIndex, currentContent->AsElement(), |
| 4543 | iterStartContent); |
| 4544 | if (areaContent) { |
| 4545 | NS_ADDREF(*aResultContent = areaContent)(*aResultContent = areaContent)->AddRef(); |
| 4546 | return NS_OK; |
| 4547 | } |
| 4548 | } else if (aIgnoreTabIndex || aCurrentTabIndex == tabIndex) { |
| 4549 | // break out if we've wrapped around to the start again. |
| 4550 | if (aOriginalStartContent && |
| 4551 | currentContent == aOriginalStartContent) { |
| 4552 | NS_ADDREF(*aResultContent = currentContent)(*aResultContent = currentContent)->AddRef(); |
| 4553 | return NS_OK; |
| 4554 | } |
| 4555 | |
| 4556 | // If this is a remote child browser, call NavigateDocument to have |
| 4557 | // the child process continue the navigation. Return a special error |
| 4558 | // code to have the caller return early. If the child ends up not |
| 4559 | // being focusable in some way, the child process will call back |
| 4560 | // into document navigation again by calling MoveFocus. |
| 4561 | if (BrowserParent* remote = BrowserParent::GetFrom(currentContent)) { |
| 4562 | if (aNavigateByKey) { |
| 4563 | remote->NavigateByKey(aForward, aForDocumentNavigation); |
| 4564 | return NS_SUCCESS_DOM_NO_OPERATION; |
| 4565 | } |
| 4566 | return NS_OK; |
| 4567 | } |
| 4568 | |
| 4569 | // Same as above but for out-of-process iframes |
| 4570 | if (auto* bbc = BrowserBridgeChild::GetFrom(currentContent)) { |
| 4571 | if (aNavigateByKey) { |
| 4572 | bbc->NavigateByKey(aForward, aForDocumentNavigation); |
| 4573 | return NS_SUCCESS_DOM_NO_OPERATION; |
| 4574 | } |
| 4575 | return NS_OK; |
| 4576 | } |
| 4577 | |
| 4578 | // Next, for document navigation, check if this a non-remote child |
| 4579 | // document. |
| 4580 | bool checkSubDocument = true; |
| 4581 | if (aForDocumentNavigation && |
| 4582 | TryDocumentNavigation(currentContent, &checkSubDocument, |
| 4583 | aResultContent)) { |
| 4584 | return NS_OK; |
| 4585 | } |
| 4586 | |
| 4587 | if (checkSubDocument) { |
| 4588 | // found a node with a matching tab index. Check if it is a child |
| 4589 | // frame. If so, navigate into the child frame instead. |
| 4590 | if (TryToMoveFocusToSubDocument( |
| 4591 | currentContent, aOriginalStartContent, aForward, |
| 4592 | aForDocumentNavigation, aNavigateByKey, |
| 4593 | aReachedToEndForDocumentNavigation, aResultContent)) { |
| 4594 | 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" , 4594); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*aResultContent" ")"); do { *((volatile int*)__null) = 4594; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4595 | return NS_OK; |
| 4596 | } |
| 4597 | // otherwise, use this as the next content node to tab to, unless |
| 4598 | // this was the element we started on. This would happen for |
| 4599 | // instance on an element with child frames, where frame navigation |
| 4600 | // could return the original element again. In that case, just skip |
| 4601 | // it. Also, if the next content node is the root content, then |
| 4602 | // return it. This latter case would happen only if someone made a |
| 4603 | // popup focusable. |
| 4604 | else if (currentContent == aRootContent || |
| 4605 | currentContent != startContent) { |
| 4606 | NS_ADDREF(*aResultContent = currentContent)(*aResultContent = currentContent)->AddRef(); |
| 4607 | return NS_OK; |
| 4608 | } |
| 4609 | } else if (currentContent && aReachedToEndForDocumentNavigation && |
| 4610 | StaticPrefs::dom_disable_tab_focus_to_root_element() && |
| 4611 | nsContentUtils::IsChromeDoc( |
| 4612 | currentContent->GetComposedDoc())) { |
| 4613 | // aReachedToEndForDocumentNavigation is true means |
| 4614 | // 1. This is a document navigation (i.e, VK_F6, Control + Tab) |
| 4615 | // 2. This is the top-level document (Note that we may start from |
| 4616 | // a subdocument) |
| 4617 | // 3. We've searched through the this top-level document already |
| 4618 | if (!GetRootForChildDocument(currentContent)) { |
| 4619 | // We'd like to focus the first focusable element of this |
| 4620 | // top-level chrome document. |
| 4621 | if (currentContent == aRootContent || |
| 4622 | currentContent != startContent) { |
| 4623 | NS_ADDREF(*aResultContent = currentContent)(*aResultContent = currentContent)->AddRef(); |
| 4624 | return NS_OK; |
| 4625 | } |
| 4626 | } |
| 4627 | } |
| 4628 | } |
| 4629 | } else if (aOriginalStartContent && |
| 4630 | currentContent == aOriginalStartContent) { |
| 4631 | // not focusable, so return if we have wrapped around to the original |
| 4632 | // content. This is necessary in case the original starting content was |
| 4633 | // not focusable. |
| 4634 | // |
| 4635 | // FIXME: Shouldn't this return null instead? currentContent isn't |
| 4636 | // focusable after all. |
| 4637 | NS_ADDREF(*aResultContent = currentContent)(*aResultContent = currentContent)->AddRef(); |
| 4638 | return NS_OK; |
| 4639 | } |
| 4640 | |
| 4641 | // Move to the next or previous frame, but ignore continuation frames |
| 4642 | // since only the first frame should be involved in focusability. |
| 4643 | // Otherwise, a loop will occur in the following example: |
| 4644 | // <span tabindex="1">...<a/><a/>...</span> |
| 4645 | // where the text wraps onto multiple lines. Tabbing from the second |
| 4646 | // link can find one of the span's continuation frames between the link |
| 4647 | // and the end of the span, and the span would end up getting focused |
| 4648 | // again. |
| 4649 | do { |
| 4650 | if (aForward) { |
| 4651 | frameIterator->Next(); |
| 4652 | } else { |
| 4653 | frameIterator->Prev(); |
| 4654 | } |
| 4655 | frame = frameIterator->CurrentItem(); |
| 4656 | } while (frame && frame->GetPrevContinuation()); |
| 4657 | } |
| 4658 | |
| 4659 | // If already at lowest priority tab (0), end search completely. |
| 4660 | // A bit counterintuitive but true, tabindex order goes 1, 2, ... 32767, 0 |
| 4661 | if (aCurrentTabIndex == (aForward ? 0 : 1)) { |
| 4662 | // if going backwards, the canvas should be focused once the beginning |
| 4663 | // has been reached, so get the root element. |
| 4664 | if (!aForward && !StaticPrefs::dom_disable_tab_focus_to_root_element()) { |
| 4665 | nsCOMPtr<nsPIDOMWindowOuter> window = GetCurrentWindow(aRootContent); |
| 4666 | 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" , 4666); return NS_ERROR_FAILURE; } } while (false); |
| 4667 | |
| 4668 | RefPtr<Element> docRoot = GetRootForFocus( |
| 4669 | window, aRootContent->GetComposedDoc(), false, true); |
| 4670 | FocusFirst(docRoot, aResultContent, |
| 4671 | false /* aReachedToEndForDocumentNavigation */); |
| 4672 | } |
| 4673 | break; |
| 4674 | } |
| 4675 | |
| 4676 | // continue looking for next highest priority tabindex |
| 4677 | aCurrentTabIndex = |
| 4678 | GetNextTabIndex(aRootContent, aCurrentTabIndex, aForward); |
| 4679 | startContent = iterStartContent = aRootContent; |
| 4680 | currentTopLevelScopeOwner = GetTopLevelScopeOwner(startContent); |
| 4681 | } |
| 4682 | |
| 4683 | return NS_OK; |
| 4684 | } |
| 4685 | |
| 4686 | bool nsFocusManager::TryDocumentNavigation(nsIContent* aCurrentContent, |
| 4687 | bool* aCheckSubDocument, |
| 4688 | nsIContent** aResultContent) { |
| 4689 | *aCheckSubDocument = true; |
| 4690 | if (RefPtr<Element> rootElementForChildDocument = |
| 4691 | GetRootForChildDocument(aCurrentContent)) { |
| 4692 | // If GetRootForChildDocument returned something then call |
| 4693 | // FocusFirst to find the root or first element to focus within |
| 4694 | // the child document. If this is a frameset though, skip this and |
| 4695 | // fall through to normal tab navigation to iterate into |
| 4696 | // the frameset's frames and locate the first focusable frame. |
| 4697 | if (!rootElementForChildDocument->IsHTMLElement(nsGkAtoms::frameset)) { |
| 4698 | *aCheckSubDocument = false; |
| 4699 | Unused << FocusFirst(rootElementForChildDocument, aResultContent, |
| 4700 | false /* aReachedToEndForDocumentNavigation */); |
| 4701 | return *aResultContent != nullptr; |
| 4702 | } |
| 4703 | } else { |
| 4704 | // Set aCheckSubDocument to false, as this was neither a frame |
| 4705 | // type element or a child document that was focusable. |
| 4706 | *aCheckSubDocument = false; |
| 4707 | } |
| 4708 | |
| 4709 | return false; |
| 4710 | } |
| 4711 | |
| 4712 | bool nsFocusManager::TryToMoveFocusToSubDocument( |
| 4713 | nsIContent* aCurrentContent, nsIContent* aOriginalStartContent, |
| 4714 | bool aForward, bool aForDocumentNavigation, bool aNavigateByKey, |
| 4715 | bool aReachedToEndForDocumentNavigation, nsIContent** aResultContent) { |
| 4716 | Document* doc = aCurrentContent->GetComposedDoc(); |
| 4717 | 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" , 4717); MOZ_PretendNoReturn(); } } while (0); |
| 4718 | Document* subdoc = doc->GetSubDocumentFor(aCurrentContent); |
| 4719 | if (subdoc && !subdoc->EventHandlingSuppressed()) { |
| 4720 | if (aForward && !StaticPrefs::dom_disable_tab_focus_to_root_element()) { |
| 4721 | // When tabbing forward into a frame, return the root |
| 4722 | // frame so that the canvas becomes focused. |
| 4723 | if (nsCOMPtr<nsPIDOMWindowOuter> subframe = subdoc->GetWindow()) { |
| 4724 | *aResultContent = GetRootForFocus(subframe, subdoc, false, true); |
| 4725 | if (*aResultContent) { |
| 4726 | NS_ADDREF(*aResultContent)(*aResultContent)->AddRef(); |
| 4727 | return true; |
| 4728 | } |
| 4729 | } |
| 4730 | } |
| 4731 | if (RefPtr<Element> rootElement = subdoc->GetRootElement()) { |
| 4732 | if (RefPtr<PresShell> subPresShell = subdoc->GetPresShell()) { |
| 4733 | nsresult rv = GetNextTabbableContent( |
| 4734 | subPresShell, rootElement, aOriginalStartContent, rootElement, |
| 4735 | aForward, (aForward ? 1 : 0), false, aForDocumentNavigation, |
| 4736 | aNavigateByKey, false, aReachedToEndForDocumentNavigation, |
| 4737 | aResultContent); |
| 4738 | 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" , 4738); return false; } } while (false); |
| 4739 | if (*aResultContent) { |
| 4740 | return true; |
| 4741 | } |
| 4742 | if (rootElement->IsEditable() && |
| 4743 | StaticPrefs::dom_disable_tab_focus_to_root_element()) { |
| 4744 | // Only move to the root element with a valid reason |
| 4745 | *aResultContent = rootElement; |
| 4746 | NS_ADDREF(*aResultContent)(*aResultContent)->AddRef(); |
| 4747 | return true; |
| 4748 | } |
| 4749 | } |
| 4750 | } |
| 4751 | } |
| 4752 | return false; |
| 4753 | } |
| 4754 | |
| 4755 | nsIContent* nsFocusManager::GetNextTabbableMapArea(bool aForward, |
| 4756 | int32_t aCurrentTabIndex, |
| 4757 | Element* aImageContent, |
| 4758 | nsIContent* aStartContent) { |
| 4759 | if (aImageContent->IsInComposedDoc()) { |
| 4760 | HTMLImageElement* imgElement = HTMLImageElement::FromNode(aImageContent); |
| 4761 | // The caller should check the element type, so we can assert here. |
| 4762 | 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" , 4762); AnnotateMozCrashReason("MOZ_ASSERT" "(" "imgElement" ")"); do { *((volatile int*)__null) = 4762; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4763 | |
| 4764 | nsCOMPtr<nsIContent> mapContent = imgElement->FindImageMap(); |
| 4765 | if (!mapContent) { |
| 4766 | return nullptr; |
| 4767 | } |
| 4768 | // First see if the the start content is in this map |
| 4769 | Maybe<uint32_t> indexOfStartContent = |
| 4770 | mapContent->ComputeIndexOf(aStartContent); |
| 4771 | nsIContent* scanStartContent; |
| 4772 | Focusable focusable; |
| 4773 | if (indexOfStartContent.isNothing() || |
| 4774 | ((focusable = aStartContent->IsFocusableWithoutStyle()) && |
| 4775 | focusable.mTabIndex != aCurrentTabIndex)) { |
| 4776 | // If aStartContent is in this map we must start iterating past it. |
| 4777 | // We skip the case where aStartContent has tabindex == aStartContent |
| 4778 | // since the next tab ordered element might be before it |
| 4779 | // (or after for backwards) in the child list. |
| 4780 | scanStartContent = |
| 4781 | aForward ? mapContent->GetFirstChild() : mapContent->GetLastChild(); |
| 4782 | } else { |
| 4783 | scanStartContent = aForward ? aStartContent->GetNextSibling() |
| 4784 | : aStartContent->GetPreviousSibling(); |
| 4785 | } |
| 4786 | |
| 4787 | for (nsCOMPtr<nsIContent> areaContent = scanStartContent; areaContent; |
| 4788 | areaContent = aForward ? areaContent->GetNextSibling() |
| 4789 | : areaContent->GetPreviousSibling()) { |
| 4790 | focusable = areaContent->IsFocusableWithoutStyle(); |
| 4791 | if (focusable && focusable.mTabIndex == aCurrentTabIndex) { |
| 4792 | return areaContent; |
| 4793 | } |
| 4794 | } |
| 4795 | } |
| 4796 | |
| 4797 | return nullptr; |
| 4798 | } |
| 4799 | |
| 4800 | int32_t nsFocusManager::GetNextTabIndex(nsIContent* aParent, |
| 4801 | int32_t aCurrentTabIndex, |
| 4802 | bool aForward) { |
| 4803 | int32_t tabIndex, childTabIndex; |
| 4804 | StyleChildrenIterator iter(aParent); |
| 4805 | |
| 4806 | if (aForward) { |
| 4807 | tabIndex = 0; |
| 4808 | for (nsIContent* child = iter.GetNextChild(); child; |
| 4809 | child = iter.GetNextChild()) { |
| 4810 | // Skip child's descendants if child is a shadow host or slot, as they are |
| 4811 | // in the focus navigation scope owned by child's shadow root |
| 4812 | if (!IsHostOrSlot(child)) { |
| 4813 | childTabIndex = GetNextTabIndex(child, aCurrentTabIndex, aForward); |
| 4814 | if (childTabIndex > aCurrentTabIndex && childTabIndex != tabIndex) { |
| 4815 | tabIndex = (tabIndex == 0 || childTabIndex < tabIndex) ? childTabIndex |
| 4816 | : tabIndex; |
| 4817 | } |
| 4818 | } |
| 4819 | |
| 4820 | nsAutoString tabIndexStr; |
| 4821 | if (child->IsElement()) { |
| 4822 | child->AsElement()->GetAttr(nsGkAtoms::tabindex, tabIndexStr); |
| 4823 | } |
| 4824 | nsresult ec; |
| 4825 | int32_t val = tabIndexStr.ToInteger(&ec); |
| 4826 | if (NS_SUCCEEDED(ec)((bool)(__builtin_expect(!!(!NS_FAILED_impl(ec)), 1))) && val > aCurrentTabIndex && val != tabIndex) { |
| 4827 | tabIndex = (tabIndex == 0 || val < tabIndex) ? val : tabIndex; |
| 4828 | } |
| 4829 | } |
| 4830 | } else { /* !aForward */ |
| 4831 | tabIndex = 1; |
| 4832 | for (nsIContent* child = iter.GetNextChild(); child; |
| 4833 | child = iter.GetNextChild()) { |
| 4834 | // Skip child's descendants if child is a shadow host or slot, as they are |
| 4835 | // in the focus navigation scope owned by child's shadow root |
| 4836 | if (!IsHostOrSlot(child)) { |
| 4837 | childTabIndex = GetNextTabIndex(child, aCurrentTabIndex, aForward); |
| 4838 | if ((aCurrentTabIndex == 0 && childTabIndex > tabIndex) || |
| 4839 | (childTabIndex < aCurrentTabIndex && childTabIndex > tabIndex)) { |
| 4840 | tabIndex = childTabIndex; |
| 4841 | } |
| 4842 | } |
| 4843 | |
| 4844 | nsAutoString tabIndexStr; |
| 4845 | if (child->IsElement()) { |
| 4846 | child->AsElement()->GetAttr(nsGkAtoms::tabindex, tabIndexStr); |
| 4847 | } |
| 4848 | nsresult ec; |
| 4849 | int32_t val = tabIndexStr.ToInteger(&ec); |
| 4850 | if (NS_SUCCEEDED(ec)((bool)(__builtin_expect(!!(!NS_FAILED_impl(ec)), 1)))) { |
| 4851 | if ((aCurrentTabIndex == 0 && val > tabIndex) || |
| 4852 | (val < aCurrentTabIndex && val > tabIndex)) { |
| 4853 | tabIndex = val; |
| 4854 | } |
| 4855 | } |
| 4856 | } |
| 4857 | } |
| 4858 | |
| 4859 | return tabIndex; |
| 4860 | } |
| 4861 | |
| 4862 | nsresult nsFocusManager::FocusFirst(Element* aRootElement, |
| 4863 | nsIContent** aNextContent, |
| 4864 | bool aReachedToEndForDocumentNavigation) { |
| 4865 | if (!aRootElement) { |
| 4866 | return NS_OK; |
| 4867 | } |
| 4868 | |
| 4869 | Document* doc = aRootElement->GetComposedDoc(); |
| 4870 | if (doc) { |
| 4871 | if (nsContentUtils::IsChromeDoc(doc)) { |
| 4872 | // If the redirectdocumentfocus attribute is set, redirect the focus to a |
| 4873 | // specific element. This is primarily used to retarget the focus to the |
| 4874 | // urlbar during document navigation. |
| 4875 | nsAutoString retarget; |
| 4876 | |
| 4877 | if (aRootElement->GetAttr(nsGkAtoms::retargetdocumentfocus, retarget)) { |
| 4878 | RefPtr<Element> element = doc->GetElementById(retarget); |
| 4879 | nsCOMPtr<nsIContent> retargetElement = |
| 4880 | FlushAndCheckIfFocusable(element, 0); |
| 4881 | if (retargetElement) { |
| 4882 | retargetElement.forget(aNextContent); |
| 4883 | return NS_OK; |
| 4884 | } |
| 4885 | } |
| 4886 | } |
| 4887 | |
| 4888 | nsCOMPtr<nsIDocShell> docShell = doc->GetDocShell(); |
| 4889 | if (docShell->ItemType() == nsIDocShellTreeItem::typeChrome) { |
| 4890 | // If the found content is in a chrome shell, navigate forward one |
| 4891 | // tabbable item so that the first item is focused. Note that we |
| 4892 | // always go forward and not back here. |
| 4893 | if (RefPtr<PresShell> presShell = doc->GetPresShell()) { |
| 4894 | return GetNextTabbableContent( |
| 4895 | presShell, aRootElement, nullptr, aRootElement, true, 1, false, |
| 4896 | StaticPrefs::dom_disable_tab_focus_to_root_element() |
| 4897 | ? aReachedToEndForDocumentNavigation |
| 4898 | : false, |
| 4899 | true, false, aReachedToEndForDocumentNavigation, aNextContent); |
| 4900 | } |
| 4901 | } |
| 4902 | } |
| 4903 | |
| 4904 | NS_ADDREF(*aNextContent = aRootElement)(*aNextContent = aRootElement)->AddRef(); |
| 4905 | return NS_OK; |
| 4906 | } |
| 4907 | |
| 4908 | Element* nsFocusManager::GetRootForFocus(nsPIDOMWindowOuter* aWindow, |
| 4909 | Document* aDocument, |
| 4910 | bool aForDocumentNavigation, |
| 4911 | bool aCheckVisibility) { |
| 4912 | if (!aForDocumentNavigation) { |
| 4913 | nsCOMPtr<nsIDocShell> docShell = aWindow->GetDocShell(); |
| 4914 | if (docShell->ItemType() == nsIDocShellTreeItem::typeChrome) { |
| 4915 | return nullptr; |
| 4916 | } |
| 4917 | } |
| 4918 | |
| 4919 | if (aCheckVisibility && !IsWindowVisible(aWindow)) return nullptr; |
| 4920 | |
| 4921 | // If the body is contenteditable, use the editor's root element rather than |
| 4922 | // the actual root element. |
| 4923 | RefPtr<Element> rootElement = |
| 4924 | nsLayoutUtils::GetEditableRootContentByContentEditable(aDocument); |
| 4925 | if (!rootElement || !rootElement->GetPrimaryFrame()) { |
| 4926 | rootElement = aDocument->GetRootElement(); |
| 4927 | if (!rootElement) { |
| 4928 | return nullptr; |
| 4929 | } |
| 4930 | } |
| 4931 | |
| 4932 | if (aCheckVisibility && !rootElement->GetPrimaryFrame()) { |
| 4933 | return nullptr; |
| 4934 | } |
| 4935 | |
| 4936 | // Finally, check if this is a frameset |
| 4937 | if (aDocument && aDocument->IsHTMLOrXHTML()) { |
| 4938 | Element* htmlChild = aDocument->GetHtmlChildElement(nsGkAtoms::frameset); |
| 4939 | if (htmlChild) { |
| 4940 | // In document navigation mode, return the frameset so that navigation |
| 4941 | // descends into the child frames. |
| 4942 | return aForDocumentNavigation ? htmlChild : nullptr; |
| 4943 | } |
| 4944 | } |
| 4945 | |
| 4946 | return rootElement; |
| 4947 | } |
| 4948 | |
| 4949 | Element* nsFocusManager::GetRootForChildDocument(nsIContent* aContent) { |
| 4950 | // Check for elements that represent child documents, that is, browsers, |
| 4951 | // editors or frames from a frameset. We don't include iframes since we |
| 4952 | // consider them to be an integral part of the same window or page. |
| 4953 | if (!aContent || !(aContent->IsXULElement(nsGkAtoms::browser) || |
| 4954 | aContent->IsXULElement(nsGkAtoms::editor) || |
| 4955 | aContent->IsHTMLElement(nsGkAtoms::frame))) { |
| 4956 | return nullptr; |
| 4957 | } |
| 4958 | |
| 4959 | Document* doc = aContent->GetComposedDoc(); |
| 4960 | if (!doc) { |
| 4961 | return nullptr; |
| 4962 | } |
| 4963 | |
| 4964 | Document* subdoc = doc->GetSubDocumentFor(aContent); |
| 4965 | if (!subdoc || subdoc->EventHandlingSuppressed()) { |
| 4966 | return nullptr; |
| 4967 | } |
| 4968 | |
| 4969 | nsCOMPtr<nsPIDOMWindowOuter> window = subdoc->GetWindow(); |
| 4970 | return GetRootForFocus(window, subdoc, true, true); |
| 4971 | } |
| 4972 | |
| 4973 | static bool IsLink(nsIContent* aContent) { |
| 4974 | return aContent->IsElement() && aContent->AsElement()->IsLink(); |
| 4975 | } |
| 4976 | |
| 4977 | void nsFocusManager::GetFocusInSelection(nsPIDOMWindowOuter* aWindow, |
| 4978 | nsIContent* aStartSelection, |
| 4979 | nsIContent* aEndSelection, |
| 4980 | nsIContent** aFocusedContent) { |
| 4981 | *aFocusedContent = nullptr; |
| 4982 | |
| 4983 | nsCOMPtr<nsIContent> testContent = aStartSelection; |
| 4984 | nsCOMPtr<nsIContent> nextTestContent = aEndSelection; |
| 4985 | |
| 4986 | nsCOMPtr<nsIContent> currentFocus = aWindow->GetFocusedElement(); |
| 4987 | |
| 4988 | // We now have the correct start node in selectionContent! |
| 4989 | // Search for focusable elements, starting with selectionContent |
| 4990 | |
| 4991 | // Method #1: Keep going up while we look - an ancestor might be focusable |
| 4992 | // We could end the loop earlier, such as when we're no longer |
| 4993 | // in the same frame, by comparing selectionContent->GetPrimaryFrame() |
| 4994 | // with a variable holding the starting selectionContent |
| 4995 | while (testContent) { |
| 4996 | // Keep testing while selectionContent is equal to something, |
| 4997 | // eventually we'll run out of ancestors |
| 4998 | |
| 4999 | if (testContent == currentFocus || IsLink(testContent)) { |
| 5000 | testContent.forget(aFocusedContent); |
| 5001 | return; |
| 5002 | } |
| 5003 | |
| 5004 | // Get the parent |
| 5005 | testContent = testContent->GetParent(); |
| 5006 | |
| 5007 | if (!testContent) { |
| 5008 | // We run this loop again, checking the ancestor chain of the selection's |
| 5009 | // end point |
| 5010 | testContent = nextTestContent; |
| 5011 | nextTestContent = nullptr; |
| 5012 | } |
| 5013 | } |
| 5014 | |
| 5015 | // We couldn't find an anchor that was an ancestor of the selection start |
| 5016 | // Method #2: look for anchor in selection's primary range (depth first |
| 5017 | // search) |
| 5018 | |
| 5019 | nsCOMPtr<nsIContent> selectionNode = aStartSelection; |
| 5020 | nsCOMPtr<nsIContent> endSelectionNode = aEndSelection; |
| 5021 | nsCOMPtr<nsIContent> testNode; |
| 5022 | |
| 5023 | do { |
| 5024 | testContent = selectionNode; |
| 5025 | |
| 5026 | // We're looking for any focusable link that could be part of the |
| 5027 | // main document's selection. |
| 5028 | if (testContent == currentFocus || IsLink(testContent)) { |
| 5029 | testContent.forget(aFocusedContent); |
| 5030 | return; |
| 5031 | } |
| 5032 | |
| 5033 | nsIContent* testNode = selectionNode->GetFirstChild(); |
| 5034 | if (testNode) { |
| 5035 | selectionNode = testNode; |
| 5036 | continue; |
| 5037 | } |
| 5038 | |
| 5039 | if (selectionNode == endSelectionNode) { |
| 5040 | break; |
| 5041 | } |
| 5042 | testNode = selectionNode->GetNextSibling(); |
| 5043 | if (testNode) { |
| 5044 | selectionNode = testNode; |
| 5045 | continue; |
| 5046 | } |
| 5047 | |
| 5048 | do { |
| 5049 | // GetParent is OK here, instead of GetParentNode, because the only case |
| 5050 | // where the latter returns something different from the former is when |
| 5051 | // GetParentNode is the document. But in that case we would simply get |
| 5052 | // null for selectionNode when setting it to testNode->GetNextSibling() |
| 5053 | // (because a document has no next sibling). And then the next iteration |
| 5054 | // of this loop would get null for GetParentNode anyway, and break out of |
| 5055 | // all the loops. |
| 5056 | testNode = selectionNode->GetParent(); |
| 5057 | if (!testNode || testNode == endSelectionNode) { |
| 5058 | selectionNode = nullptr; |
| 5059 | break; |
| 5060 | } |
| 5061 | selectionNode = testNode->GetNextSibling(); |
| 5062 | if (selectionNode) { |
| 5063 | break; |
| 5064 | } |
| 5065 | selectionNode = testNode; |
| 5066 | } while (true); |
| 5067 | } while (selectionNode && selectionNode != endSelectionNode); |
| 5068 | } |
| 5069 | |
| 5070 | static void MaybeUnlockPointer(BrowsingContext* aCurrentFocusedContext) { |
| 5071 | if (!PointerLockManager::IsInLockContext(aCurrentFocusedContext)) { |
| 5072 | PointerLockManager::Unlock(); |
| 5073 | } |
| 5074 | } |
| 5075 | |
| 5076 | class PointerUnlocker : public Runnable { |
| 5077 | public: |
| 5078 | PointerUnlocker() : mozilla::Runnable("PointerUnlocker") { |
| 5079 | 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" , 5079); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5079; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5080 | 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" , 5080); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!PointerUnlocker::sActiveUnlocker" ")"); do { *((volatile int*)__null) = 5080; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5081 | PointerUnlocker::sActiveUnlocker = this; |
| 5082 | } |
| 5083 | |
| 5084 | ~PointerUnlocker() { |
| 5085 | if (PointerUnlocker::sActiveUnlocker == this) { |
| 5086 | PointerUnlocker::sActiveUnlocker = nullptr; |
| 5087 | } |
| 5088 | } |
| 5089 | |
| 5090 | NS_IMETHODvirtual nsresult Run() override { |
| 5091 | if (PointerUnlocker::sActiveUnlocker == this) { |
| 5092 | PointerUnlocker::sActiveUnlocker = nullptr; |
| 5093 | } |
| 5094 | 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" , 5094); return NS_ERROR_UNEXPECTED; } } while (false); |
| 5095 | nsPIDOMWindowOuter* focused = |
| 5096 | nsFocusManager::GetFocusManager()->GetFocusedWindow(); |
| 5097 | MaybeUnlockPointer(focused ? focused->GetBrowsingContext() : nullptr); |
| 5098 | return NS_OK; |
| 5099 | } |
| 5100 | |
| 5101 | static PointerUnlocker* sActiveUnlocker; |
| 5102 | }; |
| 5103 | |
| 5104 | PointerUnlocker* PointerUnlocker::sActiveUnlocker = nullptr; |
| 5105 | |
| 5106 | void nsFocusManager::SetFocusedBrowsingContext(BrowsingContext* aContext, |
| 5107 | uint64_t aActionId) { |
| 5108 | if (XRE_IsParentProcess()) { |
| 5109 | return; |
| 5110 | } |
| 5111 | 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" , 5112); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInContent)" ")"); do { *((volatile int*)__null) = 5112; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5112 | 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" , 5112); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInContent)" ")"); do { *((volatile int*)__null) = 5112; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5113 | mFocusedBrowsingContextInContent = aContext; |
| 5114 | mActionIdForFocusedBrowsingContextInContent = aActionId; |
| 5115 | if (aContext) { |
| 5116 | // We don't send the unset but instead expect the set from |
| 5117 | // elsewhere to take care of it. XXX Is that bad? |
| 5118 | 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" , 5118); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContext->IsInProcess()" ")"); do { *((volatile int*)__null) = 5118; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5119 | mozilla::dom::ContentChild* contentChild = |
| 5120 | mozilla::dom::ContentChild::GetSingleton(); |
| 5121 | 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" , 5121); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 5121; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5122 | contentChild->SendSetFocusedBrowsingContext(aContext, aActionId); |
| 5123 | } |
| 5124 | } |
| 5125 | |
| 5126 | void nsFocusManager::SetFocusedBrowsingContextFromOtherProcess( |
| 5127 | BrowsingContext* aContext, uint64_t aActionId) { |
| 5128 | 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" , 5128); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5128; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5129 | 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" , 5129); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContext" ")" ); do { *((volatile int*)__null) = 5129; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5130 | if (ActionIdComparableAndLower(aActionId, |
| 5131 | mActionIdForFocusedBrowsingContextInContent)) { |
| 5132 | // Unclear if this ever happens. |
| 5133 | 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) |
| 5134 | ("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) |
| 5135 | "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) |
| 5136 | 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); |
| 5137 | return; |
| 5138 | } |
| 5139 | if (aContext->IsInProcess()) { |
| 5140 | // This message has been in transit for long enough that |
| 5141 | // the process association of aContext has changed since |
| 5142 | // the other content process sent the message, because |
| 5143 | // an iframe in that process became an out-of-process |
| 5144 | // iframe while the IPC broadcast that we're receiving |
| 5145 | // was in-flight. Let's just ignore this. |
| 5146 | 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) |
| 5147 | ("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) |
| 5148 | "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) |
| 5149 | 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); |
| 5150 | return; |
| 5151 | } |
| 5152 | mFocusedBrowsingContextInContent = aContext; |
| 5153 | mActionIdForFocusedBrowsingContextInContent = aActionId; |
| 5154 | mFocusedElement = nullptr; |
| 5155 | mFocusedWindow = nullptr; |
| 5156 | } |
| 5157 | |
| 5158 | bool nsFocusManager::SetFocusedBrowsingContextInChrome( |
| 5159 | mozilla::dom::BrowsingContext* aContext, uint64_t aActionId) { |
| 5160 | 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" , 5160); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActionId" ")" ); do { *((volatile int*)__null) = 5160; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5161 | if (ProcessPendingFocusedBrowsingContextActionId(aActionId)) { |
| 5162 | 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" , 5163); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInChrome)" ")"); do { *((volatile int*)__null) = 5163; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5163 | 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" , 5163); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForFocusedBrowsingContextInChrome)" ")"); do { *((volatile int*)__null) = 5163; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5164 | mFocusedBrowsingContextInChrome = aContext; |
| 5165 | mActionIdForFocusedBrowsingContextInChrome = aActionId; |
| 5166 | return true; |
| 5167 | } |
| 5168 | return false; |
| 5169 | } |
| 5170 | |
| 5171 | BrowsingContext* nsFocusManager::GetFocusedBrowsingContextInChrome() { |
| 5172 | return mFocusedBrowsingContextInChrome; |
| 5173 | } |
| 5174 | |
| 5175 | void nsFocusManager::BrowsingContextDetached(BrowsingContext* aContext) { |
| 5176 | if (mFocusedBrowsingContextInChrome == aContext) { |
| 5177 | mFocusedBrowsingContextInChrome = nullptr; |
| 5178 | // Deliberately not adjusting the corresponding action id, because |
| 5179 | // we don't want changes from the past to take effect. |
| 5180 | } |
| 5181 | if (mActiveBrowsingContextInChrome == aContext) { |
| 5182 | mActiveBrowsingContextInChrome = nullptr; |
| 5183 | // Deliberately not adjusting the corresponding action id, because |
| 5184 | // we don't want changes from the past to take effect. |
| 5185 | } |
| 5186 | } |
| 5187 | |
| 5188 | void nsFocusManager::SetActiveBrowsingContextInContent( |
| 5189 | mozilla::dom::BrowsingContext* aContext, uint64_t aActionId, |
| 5190 | bool aIsEnteringBFCache) { |
| 5191 | 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" , 5191); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5191; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5192 | 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" , 5192); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aContext || aContext->IsInProcess()" ")"); do { *((volatile int*)__null) = 5192; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5193 | mozilla::dom::ContentChild* contentChild = |
| 5194 | mozilla::dom::ContentChild::GetSingleton(); |
| 5195 | 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" , 5195); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 5195; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5196 | |
| 5197 | if (ActionIdComparableAndLower(aActionId, |
| 5198 | mActionIdForActiveBrowsingContextInContent)) { |
| 5199 | 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) |
| 5200 | ("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) |
| 5201 | "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) |
| 5202 | 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); |
| 5203 | return; |
| 5204 | } |
| 5205 | |
| 5206 | if (aContext != mActiveBrowsingContextInContent) { |
| 5207 | if (aContext) { |
| 5208 | contentChild->SendSetActiveBrowsingContext(aContext, aActionId); |
| 5209 | } else if (mActiveBrowsingContextInContent && |
| 5210 | !(BFCacheInParent() && aIsEnteringBFCache)) { |
| 5211 | // No need to tell the parent process to update the active browsing |
| 5212 | // context to null if we are entering BFCache, because the browsing |
| 5213 | // context that is about to show will update it. |
| 5214 | // |
| 5215 | // We want to sync this over only if this isn't happening |
| 5216 | // due to the active BrowsingContext switching processes, |
| 5217 | // in which case the BrowserChild has already marked itself |
| 5218 | // as destroying. |
| 5219 | nsPIDOMWindowOuter* outer = |
| 5220 | mActiveBrowsingContextInContent->GetDOMWindow(); |
| 5221 | if (outer) { |
| 5222 | nsPIDOMWindowInner* inner = outer->GetCurrentInnerWindow(); |
| 5223 | if (inner) { |
| 5224 | WindowGlobalChild* globalChild = inner->GetWindowGlobalChild(); |
| 5225 | if (globalChild) { |
| 5226 | RefPtr<BrowserChild> browserChild = globalChild->GetBrowserChild(); |
| 5227 | if (browserChild && !browserChild->IsDestroyed()) { |
| 5228 | contentChild->SendUnsetActiveBrowsingContext( |
| 5229 | mActiveBrowsingContextInContent, aActionId); |
| 5230 | } |
| 5231 | } |
| 5232 | } |
| 5233 | } |
| 5234 | } |
| 5235 | } |
| 5236 | mActiveBrowsingContextInContentSetFromOtherProcess = false; |
| 5237 | mActiveBrowsingContextInContent = aContext; |
| 5238 | mActionIdForActiveBrowsingContextInContent = aActionId; |
| 5239 | MaybeUnlockPointer(aContext); |
| 5240 | } |
| 5241 | |
| 5242 | void nsFocusManager::SetActiveBrowsingContextFromOtherProcess( |
| 5243 | BrowsingContext* aContext, uint64_t aActionId) { |
| 5244 | 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" , 5244); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5244; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5245 | 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" , 5245); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContext" ")" ); do { *((volatile int*)__null) = 5245; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5246 | if (ActionIdComparableAndLower(aActionId, |
| 5247 | mActionIdForActiveBrowsingContextInContent)) { |
| 5248 | 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) |
| 5249 | ("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) |
| 5250 | "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) |
| 5251 | 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); |
| 5252 | return; |
| 5253 | } |
| 5254 | if (aContext->IsInProcess()) { |
| 5255 | // This message has been in transit for long enough that |
| 5256 | // the process association of aContext has changed since |
| 5257 | // the other content process sent the message, because |
| 5258 | // an iframe in that process became an out-of-process |
| 5259 | // iframe while the IPC broadcast that we're receiving |
| 5260 | // was in-flight. Let's just ignore this. |
| 5261 | 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) |
| 5262 | ("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) |
| 5263 | "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) |
| 5264 | 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); |
| 5265 | return; |
| 5266 | } |
| 5267 | mActiveBrowsingContextInContentSetFromOtherProcess = true; |
| 5268 | mActiveBrowsingContextInContent = aContext; |
| 5269 | mActionIdForActiveBrowsingContextInContent = aActionId; |
| 5270 | MaybeUnlockPointer(aContext); |
| 5271 | } |
| 5272 | |
| 5273 | void nsFocusManager::UnsetActiveBrowsingContextFromOtherProcess( |
| 5274 | BrowsingContext* aContext, uint64_t aActionId) { |
| 5275 | 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" , 5275); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5275; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5276 | 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" , 5276); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContext" ")" ); do { *((volatile int*)__null) = 5276; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5277 | if (ActionIdComparableAndLower(aActionId, |
| 5278 | mActionIdForActiveBrowsingContextInContent)) { |
| 5279 | 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) |
| 5280 | ("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) |
| 5281 | "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) |
| 5282 | 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); |
| 5283 | return; |
| 5284 | } |
| 5285 | if (mActiveBrowsingContextInContent == aContext) { |
| 5286 | mActiveBrowsingContextInContent = nullptr; |
| 5287 | mActionIdForActiveBrowsingContextInContent = aActionId; |
| 5288 | MaybeUnlockPointer(nullptr); |
| 5289 | } else { |
| 5290 | 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) |
| 5291 | ("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) |
| 5292 | "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) |
| 5293 | 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); |
| 5294 | } |
| 5295 | } |
| 5296 | |
| 5297 | void nsFocusManager::ReviseActiveBrowsingContext( |
| 5298 | uint64_t aOldActionId, mozilla::dom::BrowsingContext* aContext, |
| 5299 | uint64_t aNewActionId) { |
| 5300 | 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" , 5300); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsContentProcess()" ")"); do { *((volatile int*)__null) = 5300; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5301 | if (mActionIdForActiveBrowsingContextInContent == aOldActionId) { |
| 5302 | 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) |
| 5303 | ", 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) |
| 5304 | "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) |
| 5305 | 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); |
| 5306 | mActiveBrowsingContextInContent = aContext; |
| 5307 | mActionIdForActiveBrowsingContextInContent = aNewActionId; |
| 5308 | } else { |
| 5309 | 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) |
| 5310 | ("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) |
| 5311 | "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) |
| 5312 | 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); |
| 5313 | } |
| 5314 | } |
| 5315 | |
| 5316 | void nsFocusManager::ReviseFocusedBrowsingContext( |
| 5317 | uint64_t aOldActionId, mozilla::dom::BrowsingContext* aContext, |
| 5318 | uint64_t aNewActionId) { |
| 5319 | 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" , 5319); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsContentProcess()" ")"); do { *((volatile int*)__null) = 5319; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5320 | if (mActionIdForFocusedBrowsingContextInContent == aOldActionId) { |
| 5321 | 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) |
| 5322 | ("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) |
| 5323 | ", 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) |
| 5324 | "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) |
| 5325 | 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); |
| 5326 | mFocusedBrowsingContextInContent = aContext; |
| 5327 | mActionIdForFocusedBrowsingContextInContent = aNewActionId; |
| 5328 | mFocusedElement = nullptr; |
| 5329 | } else { |
| 5330 | 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) |
| 5331 | ("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) |
| 5332 | "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) |
| 5333 | 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); |
| 5334 | } |
| 5335 | } |
| 5336 | |
| 5337 | bool nsFocusManager::SetActiveBrowsingContextInChrome( |
| 5338 | mozilla::dom::BrowsingContext* aContext, uint64_t aActionId) { |
| 5339 | 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" , 5339); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActionId" ")" ); do { *((volatile int*)__null) = 5339; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5340 | if (ProcessPendingActiveBrowsingContextActionId(aActionId, aContext)) { |
| 5341 | 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" , 5342); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForActiveBrowsingContextInChrome)" ")"); do { *((volatile int*)__null) = 5342; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5342 | 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" , 5342); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!ActionIdComparableAndLower( aActionId, mActionIdForActiveBrowsingContextInChrome)" ")"); do { *((volatile int*)__null) = 5342; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5343 | mActiveBrowsingContextInChrome = aContext; |
| 5344 | mActionIdForActiveBrowsingContextInChrome = aActionId; |
| 5345 | return true; |
| 5346 | } |
| 5347 | return false; |
| 5348 | } |
| 5349 | |
| 5350 | uint64_t nsFocusManager::GetActionIdForActiveBrowsingContextInChrome() const { |
| 5351 | return mActionIdForActiveBrowsingContextInChrome; |
| 5352 | } |
| 5353 | |
| 5354 | uint64_t nsFocusManager::GetActionIdForFocusedBrowsingContextInChrome() const { |
| 5355 | return mActionIdForFocusedBrowsingContextInChrome; |
| 5356 | } |
| 5357 | |
| 5358 | BrowsingContext* nsFocusManager::GetActiveBrowsingContextInChrome() { |
| 5359 | return mActiveBrowsingContextInChrome; |
| 5360 | } |
| 5361 | |
| 5362 | void nsFocusManager::InsertNewFocusActionId(uint64_t aActionId) { |
| 5363 | 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); |
| 5364 | 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" , 5364); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5364; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5365 | 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" , 5365); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mPendingActiveBrowsingContextActions.Contains(aActionId)" ")"); do { *((volatile int*)__null) = 5365; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5366 | mPendingActiveBrowsingContextActions.AppendElement(aActionId); |
| 5367 | 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" , 5367); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mPendingFocusedBrowsingContextActions.Contains(aActionId)" ")"); do { *((volatile int*)__null) = 5367; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5368 | mPendingFocusedBrowsingContextActions.AppendElement(aActionId); |
| 5369 | } |
| 5370 | |
| 5371 | static void RemoveContentInitiatedActionsUntil( |
| 5372 | nsTArray<uint64_t>& aPendingActions, |
| 5373 | nsTArray<uint64_t>::index_type aUntil) { |
| 5374 | nsTArray<uint64_t>::index_type i = 0; |
| 5375 | while (i < aUntil) { |
| 5376 | auto [actionProc, actionId] = |
| 5377 | nsContentUtils::SplitProcessSpecificId(aPendingActions[i]); |
| 5378 | Unused << actionId; |
| 5379 | if (actionProc) { |
| 5380 | aPendingActions.RemoveElementAt(i); |
| 5381 | --aUntil; |
| 5382 | continue; |
| 5383 | } |
| 5384 | ++i; |
| 5385 | } |
| 5386 | } |
| 5387 | |
| 5388 | bool nsFocusManager::ProcessPendingActiveBrowsingContextActionId( |
| 5389 | uint64_t aActionId, bool aSettingToNonNull) { |
| 5390 | 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" , 5390); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5390; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5391 | auto index = mPendingActiveBrowsingContextActions.IndexOf(aActionId); |
| 5392 | if (index == nsTArray<uint64_t>::NoIndex) { |
| 5393 | return false; |
| 5394 | } |
| 5395 | // When aSettingToNonNull is true, we need to remove one more |
| 5396 | // element to remove the action id itself in addition to |
| 5397 | // removing the older ones. |
| 5398 | if (aSettingToNonNull) { |
| 5399 | index++; |
| 5400 | } |
| 5401 | auto [actionProc, actionId] = |
| 5402 | nsContentUtils::SplitProcessSpecificId(aActionId); |
| 5403 | Unused << actionId; |
| 5404 | if (actionProc) { |
| 5405 | // Action from content: We allow parent-initiated actions |
| 5406 | // to take precedence over content-initiated ones, so we |
| 5407 | // remove only prior content-initiated actions. |
| 5408 | RemoveContentInitiatedActionsUntil(mPendingActiveBrowsingContextActions, |
| 5409 | index); |
| 5410 | } else { |
| 5411 | // Action from chrome |
| 5412 | mPendingActiveBrowsingContextActions.RemoveElementsAt(0, index); |
| 5413 | } |
| 5414 | return true; |
| 5415 | } |
| 5416 | |
| 5417 | bool nsFocusManager::ProcessPendingFocusedBrowsingContextActionId( |
| 5418 | uint64_t aActionId) { |
| 5419 | 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" , 5419); AnnotateMozCrashReason("MOZ_ASSERT" "(" "XRE_IsParentProcess()" ")"); do { *((volatile int*)__null) = 5419; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5420 | auto index = mPendingFocusedBrowsingContextActions.IndexOf(aActionId); |
| 5421 | if (index == nsTArray<uint64_t>::NoIndex) { |
| 5422 | return false; |
| 5423 | } |
| 5424 | |
| 5425 | auto [actionProc, actionId] = |
| 5426 | nsContentUtils::SplitProcessSpecificId(aActionId); |
| 5427 | Unused << actionId; |
| 5428 | if (actionProc) { |
| 5429 | // Action from content: We allow parent-initiated actions |
| 5430 | // to take precedence over content-initiated ones, so we |
| 5431 | // remove only prior content-initiated actions. |
| 5432 | RemoveContentInitiatedActionsUntil(mPendingFocusedBrowsingContextActions, |
| 5433 | index); |
| 5434 | } else { |
| 5435 | // Action from chrome |
| 5436 | mPendingFocusedBrowsingContextActions.RemoveElementsAt(0, index); |
| 5437 | } |
| 5438 | return true; |
| 5439 | } |
| 5440 | |
| 5441 | // static |
| 5442 | uint64_t nsFocusManager::GenerateFocusActionId() { |
| 5443 | uint64_t id = |
| 5444 | nsContentUtils::GenerateProcessSpecificId(++sFocusActionCounter); |
| 5445 | if (XRE_IsParentProcess()) { |
| 5446 | nsFocusManager* fm = GetFocusManager(); |
| 5447 | if (fm) { |
| 5448 | fm->InsertNewFocusActionId(id); |
| 5449 | } |
| 5450 | } else { |
| 5451 | mozilla::dom::ContentChild* contentChild = |
| 5452 | mozilla::dom::ContentChild::GetSingleton(); |
| 5453 | 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" , 5453); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentChild" ")"); do { *((volatile int*)__null) = 5453; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5454 | contentChild->SendInsertNewFocusActionId(id); |
| 5455 | } |
| 5456 | 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); |
| 5457 | return id; |
| 5458 | } |
| 5459 | |
| 5460 | static bool IsInPointerLockContext(nsPIDOMWindowOuter* aWin) { |
| 5461 | return PointerLockManager::IsInLockContext(aWin ? aWin->GetBrowsingContext() |
| 5462 | : nullptr); |
| 5463 | } |
| 5464 | |
| 5465 | void nsFocusManager::SetFocusedWindowInternal(nsPIDOMWindowOuter* aWindow, |
| 5466 | uint64_t aActionId, |
| 5467 | bool aSyncBrowsingContext) { |
| 5468 | if (XRE_IsParentProcess() && !PointerUnlocker::sActiveUnlocker && |
| 5469 | IsInPointerLockContext(mFocusedWindow) && |
| 5470 | !IsInPointerLockContext(aWindow)) { |
| 5471 | nsCOMPtr<nsIRunnable> runnable = new PointerUnlocker(); |
| 5472 | NS_DispatchToCurrentThread(runnable); |
| 5473 | } |
| 5474 | |
| 5475 | // Update the last focus time on any affected documents |
| 5476 | if (aWindow && aWindow != mFocusedWindow) { |
| 5477 | const TimeStamp now(TimeStamp::Now()); |
| 5478 | for (Document* doc = aWindow->GetExtantDoc(); doc; |
| 5479 | doc = doc->GetInProcessParentDocument()) { |
| 5480 | doc->SetLastFocusTime(now); |
| 5481 | } |
| 5482 | } |
| 5483 | |
| 5484 | // This function may be called with zero action id to indicate that the |
| 5485 | // action id should be ignored. |
| 5486 | if (XRE_IsContentProcess() && aActionId && |
| 5487 | ActionIdComparableAndLower(aActionId, |
| 5488 | mActionIdForFocusedBrowsingContextInContent)) { |
| 5489 | // Unclear if this ever happens. |
| 5490 | 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) |
| 5491 | ("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) |
| 5492 | "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) |
| 5493 | 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); |
| 5494 | return; |
| 5495 | } |
| 5496 | |
| 5497 | mFocusedWindow = aWindow; |
| 5498 | BrowsingContext* bc = aWindow ? aWindow->GetBrowsingContext() : nullptr; |
| 5499 | if (aSyncBrowsingContext) { |
| 5500 | 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" , 5501); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActionId" ") (" "aActionId must not be zero if aSyncBrowsingContext is true" ")"); do { *((volatile int*)__null) = 5501; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5501 | "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" , 5501); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aActionId" ") (" "aActionId must not be zero if aSyncBrowsingContext is true" ")"); do { *((volatile int*)__null) = 5501; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5502 | SetFocusedBrowsingContext(bc, aActionId); |
| 5503 | } else if (XRE_IsContentProcess()) { |
| 5504 | 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" , 5505); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mFocusedBrowsingContextInContent == bc" ") (" "Not syncing BrowsingContext even when different." ")" ); do { *((volatile int*)__null) = 5505; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5505 | "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" , 5505); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mFocusedBrowsingContextInContent == bc" ") (" "Not syncing BrowsingContext even when different." ")" ); do { *((volatile int*)__null) = 5505; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5506 | } |
| 5507 | } |
| 5508 | |
| 5509 | void nsFocusManager::NotifyOfReFocus(Element& aElement) { |
| 5510 | nsPIDOMWindowOuter* window = GetCurrentWindow(&aElement); |
| 5511 | if (!window || window != mFocusedWindow) { |
| 5512 | return; |
| 5513 | } |
| 5514 | if (!aElement.IsInComposedDoc() || IsNonFocusableRoot(&aElement)) { |
| 5515 | return; |
| 5516 | } |
| 5517 | nsIDocShell* docShell = window->GetDocShell(); |
| 5518 | if (!docShell) { |
| 5519 | return; |
| 5520 | } |
| 5521 | RefPtr<PresShell> presShell = docShell->GetPresShell(); |
| 5522 | if (!presShell) { |
| 5523 | return; |
| 5524 | } |
| 5525 | RefPtr<nsPresContext> presContext = presShell->GetPresContext(); |
| 5526 | if (!presContext) { |
| 5527 | return; |
| 5528 | } |
| 5529 | IMEStateManager::OnReFocus(*presContext, aElement); |
| 5530 | } |
| 5531 | |
| 5532 | void nsFocusManager::MarkUncollectableForCCGeneration(uint32_t aGeneration) { |
| 5533 | if (!sInstance) { |
| 5534 | return; |
| 5535 | } |
| 5536 | |
| 5537 | if (sInstance->mActiveWindow) { |
| 5538 | sInstance->mActiveWindow->MarkUncollectableForCCGeneration(aGeneration); |
| 5539 | } |
| 5540 | if (sInstance->mFocusedWindow) { |
| 5541 | sInstance->mFocusedWindow->MarkUncollectableForCCGeneration(aGeneration); |
| 5542 | } |
| 5543 | if (sInstance->mWindowBeingLowered) { |
| 5544 | sInstance->mWindowBeingLowered->MarkUncollectableForCCGeneration( |
| 5545 | aGeneration); |
| 5546 | } |
| 5547 | if (sInstance->mFocusedElement) { |
| 5548 | sInstance->mFocusedElement->OwnerDoc()->MarkUncollectableForCCGeneration( |
| 5549 | aGeneration); |
| 5550 | } |
| 5551 | if (sInstance->mFirstBlurEvent) { |
| 5552 | sInstance->mFirstBlurEvent->OwnerDoc()->MarkUncollectableForCCGeneration( |
| 5553 | aGeneration); |
| 5554 | } |
| 5555 | if (sInstance->mFirstFocusEvent) { |
| 5556 | sInstance->mFirstFocusEvent->OwnerDoc()->MarkUncollectableForCCGeneration( |
| 5557 | aGeneration); |
| 5558 | } |
| 5559 | } |
| 5560 | |
| 5561 | bool nsFocusManager::CanSkipFocus(nsIContent* aContent) { |
| 5562 | if (!aContent) { |
| 5563 | return false; |
| 5564 | } |
| 5565 | |
| 5566 | if (mFocusedElement == aContent) { |
| 5567 | return true; |
| 5568 | } |
| 5569 | |
| 5570 | nsIDocShell* ds = aContent->OwnerDoc()->GetDocShell(); |
| 5571 | if (!ds) { |
| 5572 | return true; |
| 5573 | } |
| 5574 | |
| 5575 | if (XRE_IsParentProcess()) { |
| 5576 | nsCOMPtr<nsIDocShellTreeItem> root; |
| 5577 | ds->GetInProcessRootTreeItem(getter_AddRefs(root)); |
| 5578 | nsCOMPtr<nsPIDOMWindowOuter> newRootWindow = |
| 5579 | root ? root->GetWindow() : nullptr; |
| 5580 | if (mActiveWindow != newRootWindow) { |
| 5581 | nsPIDOMWindowOuter* outerWindow = aContent->OwnerDoc()->GetWindow(); |
| 5582 | if (outerWindow && outerWindow->GetFocusedElement() == aContent) { |
| 5583 | return true; |
| 5584 | } |
| 5585 | } |
| 5586 | } else { |
| 5587 | BrowsingContext* bc = aContent->OwnerDoc()->GetBrowsingContext(); |
| 5588 | BrowsingContext* top = bc ? bc->Top() : nullptr; |
| 5589 | if (GetActiveBrowsingContext() != top) { |
| 5590 | nsPIDOMWindowOuter* outerWindow = aContent->OwnerDoc()->GetWindow(); |
| 5591 | if (outerWindow && outerWindow->GetFocusedElement() == aContent) { |
| 5592 | return true; |
| 5593 | } |
| 5594 | } |
| 5595 | } |
| 5596 | |
| 5597 | return false; |
| 5598 | } |
| 5599 | |
| 5600 | static IsFocusableFlags FocusManagerFlagsToIsFocusableFlags(uint32_t aFlags) { |
| 5601 | auto flags = IsFocusableFlags(0); |
| 5602 | if (aFlags & nsIFocusManager::FLAG_BYMOUSE) { |
| 5603 | flags |= IsFocusableFlags::WithMouse; |
| 5604 | } |
| 5605 | return flags; |
| 5606 | } |
| 5607 | |
| 5608 | /* static */ |
| 5609 | Element* nsFocusManager::GetTheFocusableArea(Element* aTarget, |
| 5610 | uint32_t aFlags) { |
| 5611 | 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" , 5611); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aTarget" ")" ); do { *((volatile int*)__null) = 5611; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5612 | nsIFrame* frame = aTarget->GetPrimaryFrame(); |
| 5613 | if (!frame) { |
| 5614 | return nullptr; |
| 5615 | } |
| 5616 | |
| 5617 | // If focus target is the document element of its Document. |
| 5618 | if (aTarget == aTarget->OwnerDoc()->GetRootElement()) { |
| 5619 | // the root content can always be focused, |
| 5620 | // except in userfocusignored context. |
| 5621 | return aTarget; |
| 5622 | } |
| 5623 | |
| 5624 | // If focus target is an area element with one or more shapes that are |
| 5625 | // focusable areas. |
| 5626 | if (auto* area = HTMLAreaElement::FromNode(aTarget)) { |
| 5627 | return IsAreaElementFocusable(*area) ? area : nullptr; |
| 5628 | } |
| 5629 | |
| 5630 | // For these 3 steps mentioned in the spec |
| 5631 | // 1. If focus target is an element with one or more scrollable regions that |
| 5632 | // are focusable areas |
| 5633 | // 2. If focus target is a navigable |
| 5634 | // 3. If focus target is a navigable container with a non-null content |
| 5635 | // navigable |
| 5636 | // nsIFrame::IsFocusable will effectively perform the checks for them. |
| 5637 | IsFocusableFlags flags = FocusManagerFlagsToIsFocusableFlags(aFlags); |
| 5638 | if (frame->IsFocusable(flags)) { |
| 5639 | return aTarget; |
| 5640 | } |
| 5641 | |
| 5642 | // If focus target is a shadow host whose shadow root's delegates focus is |
| 5643 | // true |
| 5644 | if (ShadowRoot* root = aTarget->GetShadowRoot()) { |
| 5645 | if (root->DelegatesFocus()) { |
| 5646 | // If focus target is a shadow-including inclusive ancestor of the |
| 5647 | // currently focused area of a top-level browsing context's DOM anchor, |
| 5648 | // then return the already-focused element. |
| 5649 | if (nsPIDOMWindowInner* innerWindow = |
| 5650 | aTarget->OwnerDoc()->GetInnerWindow()) { |
| 5651 | if (Element* focusedElement = innerWindow->GetFocusedElement()) { |
| 5652 | if (focusedElement->IsShadowIncludingInclusiveDescendantOf(aTarget)) { |
| 5653 | return focusedElement; |
| 5654 | } |
| 5655 | } |
| 5656 | } |
| 5657 | |
| 5658 | if (Element* firstFocusable = root->GetFocusDelegate(flags)) { |
| 5659 | return firstFocusable; |
| 5660 | } |
| 5661 | } |
| 5662 | } |
| 5663 | return nullptr; |
| 5664 | } |
| 5665 | |
| 5666 | /* static */ |
| 5667 | bool nsFocusManager::IsAreaElementFocusable(HTMLAreaElement& aArea) { |
| 5668 | nsIFrame* frame = aArea.GetPrimaryFrame(); |
| 5669 | if (!frame) { |
| 5670 | return false; |
| 5671 | } |
| 5672 | // HTML areas do not have their own frame, and the img frame we get from |
| 5673 | // GetPrimaryFrame() is not relevant as to whether it is focusable or |
| 5674 | // not, so we have to do all the relevant checks manually for them. |
| 5675 | return frame->IsVisibleConsideringAncestors() && |
| 5676 | aArea.IsFocusableWithoutStyle(); |
| 5677 | } |
| 5678 | |
| 5679 | nsresult NS_NewFocusManager(nsIFocusManager** aResult) { |
| 5680 | NS_IF_ADDREF(*aResult = nsFocusManager::GetFocusManager())ns_if_addref(*aResult = nsFocusManager::GetFocusManager()); |
| 5681 | return NS_OK; |
| 5682 | } |