| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * (C) 2001 Dirk Mueller (mueller@kde.org) |
| * (C) 2006 Alexey Proskuryakov (ap@webkit.org) |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved. |
| * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) |
| * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #include "config.h" |
| #include "core/dom/FullscreenElementStack.h" |
| |
| #include "core/HTMLNames.h" |
| #include "core/dom/Document.h" |
| #include "core/events/Event.h" |
| #include "core/frame/FrameHost.h" |
| #include "core/frame/LocalFrame.h" |
| #include "core/frame/Settings.h" |
| #include "core/frame/UseCounter.h" |
| #include "core/html/HTMLFrameOwnerElement.h" |
| #include "core/html/HTMLMediaElement.h" |
| #include "core/page/Chrome.h" |
| #include "core/page/ChromeClient.h" |
| #include "core/rendering/RenderFullScreen.h" |
| #include "platform/UserGestureIndicator.h" |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| static bool fullscreenIsAllowedForAllOwners(const Document& document) |
| { |
| const HTMLFrameOwnerElement* owner = document.ownerElement(); |
| if (!owner) |
| return true; |
| do { |
| if (!owner->hasAttribute(allowfullscreenAttr)) { |
| if (owner->hasAttribute(webkitallowfullscreenAttr)) |
| UseCounter::count(document, UseCounter::PrefixedAllowFullscreenAttribute); |
| else |
| return false; |
| } |
| } while ((owner = owner->document().ownerElement())); |
| return true; |
| } |
| |
| static bool fullscreenIsSupported(const Document& document) |
| { |
| // Fullscreen is supported if there is no previously-established user preference, |
| // security risk, or platform limitation. |
| return document.settings()->fullscreenSupported(); |
| } |
| |
| static bool fullscreenIsSupported(const Document& document, const Element& element) |
| { |
| if (document.settings()->disallowFullscreenForNonMediaElements() && !isHTMLMediaElement(element)) |
| return false; |
| return fullscreenIsSupported(document); |
| } |
| |
| const char* FullscreenElementStack::supplementName() |
| { |
| return "FullscreenElementStack"; |
| } |
| |
| FullscreenElementStack& FullscreenElementStack::from(Document& document) |
| { |
| FullscreenElementStack* fullscreen = fromIfExists(document); |
| if (!fullscreen) { |
| fullscreen = new FullscreenElementStack(document); |
| DocumentSupplement::provideTo(document, supplementName(), adoptPtrWillBeNoop(fullscreen)); |
| } |
| |
| return *fullscreen; |
| } |
| |
| FullscreenElementStack* FullscreenElementStack::fromIfExistsSlow(Document& document) |
| { |
| return static_cast<FullscreenElementStack*>(DocumentSupplement::from(document, supplementName())); |
| } |
| |
| Element* FullscreenElementStack::fullscreenElementFrom(Document& document) |
| { |
| if (FullscreenElementStack* found = fromIfExists(document)) |
| return found->webkitFullscreenElement(); |
| return 0; |
| } |
| |
| Element* FullscreenElementStack::currentFullScreenElementFrom(Document& document) |
| { |
| if (FullscreenElementStack* found = fromIfExists(document)) |
| return found->webkitCurrentFullScreenElement(); |
| return 0; |
| } |
| |
| bool FullscreenElementStack::isFullScreen(Document& document) |
| { |
| if (FullscreenElementStack* found = fromIfExists(document)) |
| return found->webkitIsFullScreen(); |
| return false; |
| } |
| |
| FullscreenElementStack::FullscreenElementStack(Document& document) |
| : DocumentLifecycleObserver(&document) |
| , m_areKeysEnabledInFullScreen(false) |
| , m_fullScreenRenderer(0) |
| , m_fullScreenChangeDelayTimer(this, &FullscreenElementStack::fullScreenChangeDelayTimerFired) |
| { |
| document.setHasFullscreenElementStack(); |
| } |
| |
| FullscreenElementStack::~FullscreenElementStack() |
| { |
| } |
| |
| inline Document* FullscreenElementStack::document() |
| { |
| return lifecycleContext(); |
| } |
| |
| void FullscreenElementStack::documentWasDetached() |
| { |
| m_fullScreenChangeEventTargetQueue.clear(); |
| m_fullScreenErrorEventTargetQueue.clear(); |
| |
| if (m_fullScreenRenderer) |
| m_fullScreenRenderer->destroy(); |
| |
| #if ENABLE(OILPAN) |
| m_fullScreenElement = nullptr; |
| m_fullScreenElementStack.clear(); |
| #endif |
| |
| } |
| |
| #if !ENABLE(OILPAN) |
| void FullscreenElementStack::documentWasDisposed() |
| { |
| // NOTE: the context dispose phase is not supported in oilpan. Please |
| // consider using the detach phase instead. |
| m_fullScreenElement = nullptr; |
| m_fullScreenElementStack.clear(); |
| } |
| #endif |
| |
| bool FullscreenElementStack::fullScreenIsAllowedForElement(Element* element) const |
| { |
| ASSERT(element); |
| return fullscreenIsAllowedForAllOwners(element->document()); |
| } |
| |
| void FullscreenElementStack::requestFullScreenForElement(Element* element, unsigned short flags, FullScreenCheckType checkType) |
| { |
| // Ignore this request if the document is not in a live frame. |
| if (!document()->isActive()) |
| return; |
| |
| // The Mozilla Full Screen API <https://wiki.mozilla.org/Gecko:FullScreenAPI> has different requirements |
| // for full screen mode, and do not have the concept of a full screen element stack. |
| bool inLegacyMozillaMode = (flags & Element::LEGACY_MOZILLA_REQUEST); |
| |
| do { |
| if (!element) |
| element = document()->documentElement(); |
| |
| // 1. If any of the following conditions are true, terminate these steps and queue a task to fire |
| // an event named fullscreenerror with its bubbles attribute set to true on the context object's |
| // node document: |
| |
| // The context object is not in a document. |
| if (!element->inDocument()) |
| break; |
| |
| // The context object's node document, or an ancestor browsing context's document does not have |
| // the fullscreen enabled flag set. |
| if (checkType == EnforceIFrameAllowFullScreenRequirement && !fullScreenIsAllowedForElement(element)) |
| break; |
| |
| // The context object's node document fullscreen element stack is not empty and its top element |
| // is not an ancestor of the context object. (NOTE: Ignore this requirement if the request was |
| // made via the legacy Mozilla-style API.) |
| if (!m_fullScreenElementStack.isEmpty() && !inLegacyMozillaMode) { |
| Element* lastElementOnStack = m_fullScreenElementStack.last().get(); |
| if (lastElementOnStack == element || !lastElementOnStack->contains(element)) |
| break; |
| } |
| |
| // A descendant browsing context's document has a non-empty fullscreen element stack. |
| bool descendentHasNonEmptyStack = false; |
| for (Frame* descendant = document()->frame() ? document()->frame()->tree().traverseNext() : 0; descendant; descendant = descendant->tree().traverseNext()) { |
| if (!descendant->isLocalFrame()) |
| continue; |
| ASSERT(toLocalFrame(descendant)->document()); |
| if (fullscreenElementFrom(*toLocalFrame(descendant)->document())) { |
| descendentHasNonEmptyStack = true; |
| break; |
| } |
| } |
| if (descendentHasNonEmptyStack && !inLegacyMozillaMode) |
| break; |
| |
| // This algorithm is not allowed to show a pop-up: |
| // An algorithm is allowed to show a pop-up if, in the task in which the algorithm is running, either: |
| // - an activation behavior is currently being processed whose click event was trusted, or |
| // - the event listener for a trusted click event is being handled. |
| if (!UserGestureIndicator::processingUserGesture()) |
| break; |
| |
| // Fullscreen is not supported. |
| if (document() && !fullscreenIsSupported(*document(), *element)) |
| break; |
| |
| // 2. Let doc be element's node document. (i.e. "this") |
| Document* currentDoc = document(); |
| |
| // 3. Let docs be all doc's ancestor browsing context's documents (if any) and doc. |
| Deque<Document*> docs; |
| |
| do { |
| docs.prepend(currentDoc); |
| currentDoc = currentDoc->ownerElement() ? ¤tDoc->ownerElement()->document() : 0; |
| } while (currentDoc); |
| |
| // 4. For each document in docs, run these substeps: |
| Deque<Document*>::iterator current = docs.begin(), following = docs.begin(); |
| |
| do { |
| ++following; |
| |
| // 1. Let following document be the document after document in docs, or null if there is no |
| // such document. |
| Document* currentDoc = *current; |
| Document* followingDoc = following != docs.end() ? *following : 0; |
| |
| // 2. If following document is null, push context object on document's fullscreen element |
| // stack, and queue a task to fire an event named fullscreenchange with its bubbles attribute |
| // set to true on the document. |
| if (!followingDoc) { |
| from(*currentDoc).pushFullscreenElementStack(element); |
| addDocumentToFullScreenChangeEventQueue(currentDoc); |
| continue; |
| } |
| |
| // 3. Otherwise, if document's fullscreen element stack is either empty or its top element |
| // is not following document's browsing context container, |
| Element* topElement = fullscreenElementFrom(*currentDoc); |
| if (!topElement || topElement != followingDoc->ownerElement()) { |
| // ...push following document's browsing context container on document's fullscreen element |
| // stack, and queue a task to fire an event named fullscreenchange with its bubbles attribute |
| // set to true on document. |
| from(*currentDoc).pushFullscreenElementStack(followingDoc->ownerElement()); |
| addDocumentToFullScreenChangeEventQueue(currentDoc); |
| continue; |
| } |
| |
| // 4. Otherwise, do nothing for this document. It stays the same. |
| } while (++current != docs.end()); |
| |
| // 5. Return, and run the remaining steps asynchronously. |
| // 6. Optionally, perform some animation. |
| m_areKeysEnabledInFullScreen = flags & Element::ALLOW_KEYBOARD_INPUT; |
| document()->frameHost()->chrome().client().enterFullScreenForElement(element); |
| |
| // 7. Optionally, display a message indicating how the user can exit displaying the context object fullscreen. |
| return; |
| } while (0); |
| |
| m_fullScreenErrorEventTargetQueue.append(element ? element : document()->documentElement()); |
| m_fullScreenChangeDelayTimer.startOneShot(0, FROM_HERE); |
| } |
| |
| void FullscreenElementStack::webkitCancelFullScreen() |
| { |
| // The Mozilla "cancelFullScreen()" API behaves like the W3C "fully exit fullscreen" behavior, which |
| // is defined as: |
| // "To fully exit fullscreen act as if the exitFullscreen() method was invoked on the top-level browsing |
| // context's document and subsequently empty that document's fullscreen element stack." |
| if (!fullscreenElementFrom(document()->topDocument())) |
| return; |
| |
| // To achieve that aim, remove all the elements from the top document's stack except for the first before |
| // calling webkitExitFullscreen(): |
| WillBeHeapVector<RefPtrWillBeMember<Element> > replacementFullscreenElementStack; |
| replacementFullscreenElementStack.append(fullscreenElementFrom(document()->topDocument())); |
| FullscreenElementStack& topFullscreenElementStack = from(document()->topDocument()); |
| topFullscreenElementStack.m_fullScreenElementStack.swap(replacementFullscreenElementStack); |
| topFullscreenElementStack.webkitExitFullscreen(); |
| } |
| |
| void FullscreenElementStack::webkitExitFullscreen() |
| { |
| // The exitFullscreen() method must run these steps: |
| |
| // 1. Let doc be the context object. (i.e. "this") |
| Document* currentDoc = document(); |
| if (!currentDoc->isActive()) |
| return; |
| |
| // 2. If doc's fullscreen element stack is empty, terminate these steps. |
| if (m_fullScreenElementStack.isEmpty()) |
| return; |
| |
| // 3. Let descendants be all the doc's descendant browsing context's documents with a non-empty fullscreen |
| // element stack (if any), ordered so that the child of the doc is last and the document furthest |
| // away from the doc is first. |
| WillBeHeapDeque<RefPtrWillBeMember<Document> > descendants; |
| for (Frame* descendant = document()->frame() ? document()->frame()->tree().traverseNext() : 0; descendant; descendant = descendant->tree().traverseNext()) { |
| if (!descendant->isLocalFrame()) |
| continue; |
| ASSERT(toLocalFrame(descendant)->document()); |
| if (fullscreenElementFrom(*toLocalFrame(descendant)->document())) |
| descendants.prepend(toLocalFrame(descendant)->document()); |
| } |
| |
| // 4. For each descendant in descendants, empty descendant's fullscreen element stack, and queue a |
| // task to fire an event named fullscreenchange with its bubbles attribute set to true on descendant. |
| for (WillBeHeapDeque<RefPtrWillBeMember<Document> >::iterator i = descendants.begin(); i != descendants.end(); ++i) { |
| ASSERT(*i); |
| from(**i).clearFullscreenElementStack(); |
| addDocumentToFullScreenChangeEventQueue(i->get()); |
| } |
| |
| // 5. While doc is not null, run these substeps: |
| Element* newTop = 0; |
| while (currentDoc) { |
| // 1. Pop the top element of doc's fullscreen element stack. |
| from(*currentDoc).popFullscreenElementStack(); |
| |
| // If doc's fullscreen element stack is non-empty and the element now at the top is either |
| // not in a document or its node document is not doc, repeat this substep. |
| newTop = fullscreenElementFrom(*currentDoc); |
| if (newTop && (!newTop->inDocument() || newTop->document() != currentDoc)) |
| continue; |
| |
| // 2. Queue a task to fire an event named fullscreenchange with its bubbles attribute set to true |
| // on doc. |
| addDocumentToFullScreenChangeEventQueue(currentDoc); |
| |
| // 3. If doc's fullscreen element stack is empty and doc's browsing context has a browsing context |
| // container, set doc to that browsing context container's node document. |
| if (!newTop && currentDoc->ownerElement()) { |
| currentDoc = ¤tDoc->ownerElement()->document(); |
| continue; |
| } |
| |
| // 4. Otherwise, set doc to null. |
| currentDoc = 0; |
| } |
| |
| // 6. Return, and run the remaining steps asynchronously. |
| // 7. Optionally, perform some animation. |
| |
| FrameHost* host = document()->frameHost(); |
| |
| // Speculative fix for engaget.com/videos per crbug.com/336239. |
| // FIXME: This check is wrong. We ASSERT(document->isActive()) above |
| // so this should be redundant and should be removed! |
| if (!host) |
| return; |
| |
| // Only exit out of full screen window mode if there are no remaining elements in the |
| // full screen stack. |
| if (!newTop) { |
| host->chrome().client().exitFullScreenForElement(m_fullScreenElement.get()); |
| return; |
| } |
| |
| // Otherwise, notify the chrome of the new full screen element. |
| host->chrome().client().enterFullScreenForElement(newTop); |
| } |
| |
| bool FullscreenElementStack::webkitFullscreenEnabled(Document& document) |
| { |
| // 4. The fullscreenEnabled attribute must return true if the context object has its |
| // fullscreen enabled flag set and fullscreen is supported, and false otherwise. |
| |
| // Top-level browsing contexts are implied to have their allowFullScreen attribute set. |
| return fullscreenIsAllowedForAllOwners(document) && fullscreenIsSupported(document); |
| } |
| |
| void FullscreenElementStack::webkitWillEnterFullScreenForElement(Element* element) |
| { |
| ASSERT(element); |
| if (!document()->isActive()) |
| return; |
| |
| if (m_fullScreenRenderer) |
| m_fullScreenRenderer->unwrapRenderer(); |
| |
| m_fullScreenElement = element; |
| |
| // Create a placeholder block for a the full-screen element, to keep the page from reflowing |
| // when the element is removed from the normal flow. Only do this for a RenderBox, as only |
| // a box will have a frameRect. The placeholder will be created in setFullScreenRenderer() |
| // during layout. |
| RenderObject* renderer = m_fullScreenElement->renderer(); |
| bool shouldCreatePlaceholder = renderer && renderer->isBox(); |
| if (shouldCreatePlaceholder) { |
| m_savedPlaceholderFrameRect = toRenderBox(renderer)->frameRect(); |
| m_savedPlaceholderRenderStyle = RenderStyle::clone(renderer->style()); |
| } |
| |
| if (m_fullScreenElement != document()->documentElement()) |
| RenderFullScreen::wrapRenderer(renderer, renderer ? renderer->parent() : 0, document()); |
| |
| m_fullScreenElement->setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(true); |
| |
| // FIXME: This should not call updateStyleIfNeeded. |
| document()->setNeedsStyleRecalc(SubtreeStyleChange); |
| document()->updateRenderTreeIfNeeded(); |
| } |
| |
| void FullscreenElementStack::webkitDidEnterFullScreenForElement(Element*) |
| { |
| if (!m_fullScreenElement) |
| return; |
| |
| if (!document()->isActive()) |
| return; |
| |
| m_fullScreenElement->didBecomeFullscreenElement(); |
| |
| m_fullScreenChangeDelayTimer.startOneShot(0, FROM_HERE); |
| } |
| |
| void FullscreenElementStack::webkitWillExitFullScreenForElement(Element*) |
| { |
| if (!m_fullScreenElement) |
| return; |
| |
| if (!document()->isActive()) |
| return; |
| |
| m_fullScreenElement->willStopBeingFullscreenElement(); |
| } |
| |
| void FullscreenElementStack::webkitDidExitFullScreenForElement(Element*) |
| { |
| if (!m_fullScreenElement) |
| return; |
| |
| if (!document()->isActive()) |
| return; |
| |
| m_fullScreenElement->setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(false); |
| |
| m_areKeysEnabledInFullScreen = false; |
| |
| if (m_fullScreenRenderer) |
| m_fullScreenRenderer->unwrapRenderer(); |
| |
| m_fullScreenElement = nullptr; |
| document()->setNeedsStyleRecalc(SubtreeStyleChange); |
| |
| // When webkitCancelFullScreen is called, we call webkitExitFullScreen on the topDocument(). That |
| // means that the events will be queued there. So if we have no events here, start the timer on |
| // the exiting document. |
| Document* exitingDocument = document(); |
| if (m_fullScreenChangeEventTargetQueue.isEmpty() && m_fullScreenErrorEventTargetQueue.isEmpty()) |
| exitingDocument = &document()->topDocument(); |
| ASSERT(exitingDocument); |
| from(*exitingDocument).m_fullScreenChangeDelayTimer.startOneShot(0, FROM_HERE); |
| } |
| |
| void FullscreenElementStack::setFullScreenRenderer(RenderFullScreen* renderer) |
| { |
| if (renderer == m_fullScreenRenderer) |
| return; |
| |
| if (renderer && m_savedPlaceholderRenderStyle) { |
| renderer->createPlaceholder(m_savedPlaceholderRenderStyle.release(), m_savedPlaceholderFrameRect); |
| } else if (renderer && m_fullScreenRenderer && m_fullScreenRenderer->placeholder()) { |
| RenderBlock* placeholder = m_fullScreenRenderer->placeholder(); |
| renderer->createPlaceholder(RenderStyle::clone(placeholder->style()), placeholder->frameRect()); |
| } |
| |
| if (m_fullScreenRenderer) |
| m_fullScreenRenderer->unwrapRenderer(); |
| ASSERT(!m_fullScreenRenderer); |
| |
| m_fullScreenRenderer = renderer; |
| } |
| |
| void FullscreenElementStack::fullScreenRendererDestroyed() |
| { |
| m_fullScreenRenderer = 0; |
| } |
| |
| void FullscreenElementStack::fullScreenChangeDelayTimerFired(Timer<FullscreenElementStack>*) |
| { |
| // Since we dispatch events in this function, it's possible that the |
| // document will be detached and GC'd. We protect it here to make sure we |
| // can finish the function successfully. |
| RefPtrWillBeRawPtr<Document> protectDocument(document()); |
| WillBeHeapDeque<RefPtrWillBeMember<Node> > changeQueue; |
| m_fullScreenChangeEventTargetQueue.swap(changeQueue); |
| WillBeHeapDeque<RefPtrWillBeMember<Node> > errorQueue; |
| m_fullScreenErrorEventTargetQueue.swap(errorQueue); |
| |
| while (!changeQueue.isEmpty()) { |
| RefPtrWillBeRawPtr<Node> node = changeQueue.takeFirst(); |
| if (!node) |
| node = document()->documentElement(); |
| // The dispatchEvent below may have blown away our documentElement. |
| if (!node) |
| continue; |
| |
| // If the element was removed from our tree, also message the documentElement. Since we may |
| // have a document hierarchy, check that node isn't in another document. |
| if (!document()->contains(node.get()) && !node->inDocument()) |
| changeQueue.append(document()->documentElement()); |
| |
| node->dispatchEvent(Event::createBubble(EventTypeNames::webkitfullscreenchange)); |
| } |
| |
| while (!errorQueue.isEmpty()) { |
| RefPtrWillBeRawPtr<Node> node = errorQueue.takeFirst(); |
| if (!node) |
| node = document()->documentElement(); |
| // The dispatchEvent below may have blown away our documentElement. |
| if (!node) |
| continue; |
| |
| // If the element was removed from our tree, also message the documentElement. Since we may |
| // have a document hierarchy, check that node isn't in another document. |
| if (!document()->contains(node.get()) && !node->inDocument()) |
| errorQueue.append(document()->documentElement()); |
| |
| node->dispatchEvent(Event::createBubble(EventTypeNames::webkitfullscreenerror)); |
| } |
| } |
| |
| void FullscreenElementStack::fullScreenElementRemoved() |
| { |
| m_fullScreenElement->setContainsFullScreenElementOnAncestorsCrossingFrameBoundaries(false); |
| webkitCancelFullScreen(); |
| } |
| |
| void FullscreenElementStack::removeFullScreenElementOfSubtree(Node* node, bool amongChildrenOnly) |
| { |
| if (!m_fullScreenElement) |
| return; |
| |
| // If the node isn't in a document it can't have a fullscreen'd child. |
| if (!node->inDocument()) |
| return; |
| |
| bool elementInSubtree = false; |
| if (amongChildrenOnly) |
| elementInSubtree = m_fullScreenElement->isDescendantOf(node); |
| else |
| elementInSubtree = (m_fullScreenElement == node) || m_fullScreenElement->isDescendantOf(node); |
| |
| if (elementInSubtree) |
| fullScreenElementRemoved(); |
| } |
| |
| void FullscreenElementStack::clearFullscreenElementStack() |
| { |
| m_fullScreenElementStack.clear(); |
| } |
| |
| void FullscreenElementStack::popFullscreenElementStack() |
| { |
| if (m_fullScreenElementStack.isEmpty()) |
| return; |
| |
| m_fullScreenElementStack.removeLast(); |
| } |
| |
| void FullscreenElementStack::pushFullscreenElementStack(Element* element) |
| { |
| m_fullScreenElementStack.append(element); |
| } |
| |
| void FullscreenElementStack::addDocumentToFullScreenChangeEventQueue(Document* doc) |
| { |
| ASSERT(doc); |
| |
| Node* target = 0; |
| if (FullscreenElementStack* fullscreen = fromIfExists(*doc)) { |
| target = fullscreen->webkitFullscreenElement(); |
| if (!target) |
| target = fullscreen->webkitCurrentFullScreenElement(); |
| } |
| |
| if (!target) |
| target = doc; |
| m_fullScreenChangeEventTargetQueue.append(target); |
| } |
| |
| void FullscreenElementStack::trace(Visitor* visitor) |
| { |
| visitor->trace(m_fullScreenElement); |
| visitor->trace(m_fullScreenElementStack); |
| visitor->trace(m_fullScreenChangeEventTargetQueue); |
| visitor->trace(m_fullScreenErrorEventTargetQueue); |
| DocumentSupplement::trace(visitor); |
| } |
| |
| } // namespace WebCore |