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/*
* Copyright (C) 2006, 2008, 2011 Apple Inc. All rights reserved.
* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies)
*
* 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 "HitTestResult.h"
#include "CachedImage.h"
#include "DocumentMarkerController.h"
#include "Editor.h"
#include "File.h"
#include "Frame.h"
#include "FrameSelection.h"
#include "FrameTree.h"
#include "HTMLAnchorElement.h"
#include "HTMLAttachmentElement.h"
#include "HTMLEmbedElement.h"
#include "HTMLImageElement.h"
#include "HTMLInputElement.h"
#include "HTMLMediaElement.h"
#include "HTMLNames.h"
#include "HTMLObjectElement.h"
#include "HTMLParserIdioms.h"
#include "HTMLPlugInImageElement.h"
#include "HTMLTextAreaElement.h"
#include "HTMLVideoElement.h"
#include "HitTestLocation.h"
#include "PseudoElement.h"
#include "RenderBlockFlow.h"
#include "RenderImage.h"
#include "RenderInline.h"
#include "SVGAElement.h"
#include "SVGImageElement.h"
#include "Scrollbar.h"
#include "ShadowRoot.h"
#include "TextIterator.h"
#include "UserGestureIndicator.h"
#include "VisibleUnits.h"
#include "XLinkNames.h"
namespace WebCore {
using namespace HTMLNames;
HitTestResult::HitTestResult()
: m_isOverWidget(false)
{
}
HitTestResult::HitTestResult(const LayoutPoint& point)
: m_hitTestLocation(point)
, m_pointInInnerNodeFrame(point)
, m_isOverWidget(false)
{
}
HitTestResult::HitTestResult(const LayoutPoint& centerPoint, unsigned topPadding, unsigned rightPadding, unsigned bottomPadding, unsigned leftPadding)
: m_hitTestLocation(centerPoint, topPadding, rightPadding, bottomPadding, leftPadding)
, m_pointInInnerNodeFrame(centerPoint)
, m_isOverWidget(false)
{
}
HitTestResult::HitTestResult(const HitTestLocation& other)
: m_hitTestLocation(other)
, m_pointInInnerNodeFrame(m_hitTestLocation.point())
, m_isOverWidget(false)
{
}
HitTestResult::HitTestResult(const HitTestResult& other)
: m_hitTestLocation(other.m_hitTestLocation)
, m_innerNode(other.innerNode())
, m_innerNonSharedNode(other.innerNonSharedNode())
, m_pointInInnerNodeFrame(other.m_pointInInnerNodeFrame)
, m_localPoint(other.localPoint())
, m_innerURLElement(other.URLElement())
, m_scrollbar(other.scrollbar())
, m_isOverWidget(other.isOverWidget())
{
// Only copy the NodeSet in case of list hit test.
m_listBasedTestResult = other.m_listBasedTestResult ? std::make_unique<NodeSet>(*other.m_listBasedTestResult) : nullptr;
}
HitTestResult::~HitTestResult() = default;
HitTestResult& HitTestResult::operator=(const HitTestResult& other)
{
m_hitTestLocation = other.m_hitTestLocation;
m_innerNode = other.innerNode();
m_innerNonSharedNode = other.innerNonSharedNode();
m_pointInInnerNodeFrame = other.m_pointInInnerNodeFrame;
m_localPoint = other.localPoint();
m_innerURLElement = other.URLElement();
m_scrollbar = other.scrollbar();
m_isOverWidget = other.isOverWidget();
// Only copy the NodeSet in case of list hit test.
m_listBasedTestResult = other.m_listBasedTestResult ? std::make_unique<NodeSet>(*other.m_listBasedTestResult) : nullptr;
return *this;
}
static Node* moveOutOfUserAgentShadowTree(Node& node)
{
if (node.isInShadowTree()) {
if (ShadowRoot* root = node.containingShadowRoot()) {
if (root->mode() == ShadowRootMode::UserAgent)
return root->host();
}
}
return &node;
}
void HitTestResult::setToNonUserAgentShadowAncestor()
{
if (Node* node = innerNode()) {
node = moveOutOfUserAgentShadowTree(*node);
setInnerNode(node);
}
if (Node *node = innerNonSharedNode()) {
node = moveOutOfUserAgentShadowTree(*node);
setInnerNonSharedNode(node);
}
}
void HitTestResult::setInnerNode(Node* node)
{
if (is<PseudoElement>(node))
node = downcast<PseudoElement>(*node).hostElement();
m_innerNode = node;
}
void HitTestResult::setInnerNonSharedNode(Node* node)
{
if (is<PseudoElement>(node))
node = downcast<PseudoElement>(*node).hostElement();
m_innerNonSharedNode = node;
}
void HitTestResult::setURLElement(Element* n)
{
m_innerURLElement = n;
}
void HitTestResult::setScrollbar(Scrollbar* s)
{
m_scrollbar = s;
}
Frame* HitTestResult::innerNodeFrame() const
{
if (m_innerNonSharedNode)
return m_innerNonSharedNode->document().frame();
if (m_innerNode)
return m_innerNode->document().frame();
return 0;
}
Frame* HitTestResult::targetFrame() const
{
if (!m_innerURLElement)
return nullptr;
Frame* frame = m_innerURLElement->document().frame();
if (!frame)
return nullptr;
return frame->tree().find(m_innerURLElement->target(), *frame);
}
bool HitTestResult::isSelected() const
{
if (!m_innerNonSharedNode)
return false;
Frame* frame = m_innerNonSharedNode->document().frame();
if (!frame)
return false;
return frame->selection().contains(m_hitTestLocation.point());
}
String HitTestResult::selectedText() const
{
if (!m_innerNonSharedNode)
return emptyString();
Frame* frame = m_innerNonSharedNode->document().frame();
if (!frame)
return emptyString();
// Look for a character that's not just a separator.
for (TextIterator it(frame->selection().toNormalizedRange().get()); !it.atEnd(); it.advance()) {
int length = it.text().length();
for (int i = 0; i < length; ++i) {
if (!(U_GET_GC_MASK(it.text()[i]) & U_GC_Z_MASK))
return frame->displayStringModifiedByEncoding(frame->editor().selectedText());
}
}
return emptyString();
}
String HitTestResult::spellingToolTip(TextDirection& dir) const
{
dir = TextDirection::LTR;
// Return the tool tip string associated with this point, if any. Only markers associated with bad grammar
// currently supply strings, but maybe someday markers associated with misspelled words will also.
if (!m_innerNonSharedNode)
return String();
DocumentMarker* marker = m_innerNonSharedNode->document().markers().markerContainingPoint(m_hitTestLocation.point(), DocumentMarker::Grammar);
if (!marker)
return String();
if (auto renderer = m_innerNonSharedNode->renderer())
dir = renderer->style().direction();
return marker->description();
}
String HitTestResult::replacedString() const
{
// Return the replaced string associated with this point, if any. This marker is created when a string is autocorrected,
// and is used for generating a contextual menu item that allows it to easily be changed back if desired.
if (!m_innerNonSharedNode)
return String();
DocumentMarker* marker = m_innerNonSharedNode->document().markers().markerContainingPoint(m_hitTestLocation.point(), DocumentMarker::Replacement);
if (!marker)
return String();
return marker->description();
}
String HitTestResult::title(TextDirection& dir) const
{
dir = TextDirection::LTR;
// Find the title in the nearest enclosing DOM node.
// For <area> tags in image maps, walk the tree for the <area>, not the <img> using it.
for (Node* titleNode = m_innerNode.get(); titleNode; titleNode = titleNode->parentInComposedTree()) {
if (is<Element>(*titleNode)) {
Element& titleElement = downcast<Element>(*titleNode);
String title = titleElement.title();
if (!title.isEmpty()) {
if (auto renderer = titleElement.renderer())
dir = renderer->style().direction();
return title;
}
}
}
return String();
}
String HitTestResult::innerTextIfTruncated(TextDirection& dir) const
{
for (Node* truncatedNode = m_innerNode.get(); truncatedNode; truncatedNode = truncatedNode->parentInComposedTree()) {
if (!is<Element>(*truncatedNode))
continue;
if (auto renderer = downcast<Element>(*truncatedNode).renderer()) {
if (is<RenderBlockFlow>(*renderer)) {
RenderBlockFlow& block = downcast<RenderBlockFlow>(*renderer);
if (block.style().textOverflow() == TextOverflow::Ellipsis) {
for (RootInlineBox* line = block.firstRootBox(); line; line = line->nextRootBox()) {
if (line->hasEllipsisBox()) {
dir = block.style().direction();
return downcast<Element>(*truncatedNode).innerText();
}
}
}
break;
}
}
}
dir = TextDirection::LTR;
return String();
}
String displayString(const String& string, const Node* node)
{
if (!node)
return string;
return node->document().displayStringModifiedByEncoding(string);
}
String HitTestResult::altDisplayString() const
{
if (!m_innerNonSharedNode)
return String();
if (is<HTMLImageElement>(*m_innerNonSharedNode)) {
HTMLImageElement& image = downcast<HTMLImageElement>(*m_innerNonSharedNode);
return displayString(image.attributeWithoutSynchronization(altAttr), m_innerNonSharedNode.get());
}
if (is<HTMLInputElement>(*m_innerNonSharedNode)) {
HTMLInputElement& input = downcast<HTMLInputElement>(*m_innerNonSharedNode);
return displayString(input.alt(), m_innerNonSharedNode.get());
}
return String();
}
Image* HitTestResult::image() const
{
if (!m_innerNonSharedNode)
return nullptr;
auto* renderer = m_innerNonSharedNode->renderer();
if (is<RenderImage>(renderer)) {
auto& image = downcast<RenderImage>(*renderer);
if (image.cachedImage() && !image.cachedImage()->errorOccurred())
return image.cachedImage()->imageForRenderer(&image);
}
return nullptr;
}
IntRect HitTestResult::imageRect() const
{
if (!image())
return IntRect();
return m_innerNonSharedNode->renderBox()->absoluteContentQuad().enclosingBoundingBox();
}
URL HitTestResult::absoluteImageURL() const
{
if (!m_innerNonSharedNode)
return URL();
if (!(m_innerNonSharedNode->renderer() && m_innerNonSharedNode->renderer()->isImage()))
return URL();
AtomicString urlString;
if (is<HTMLEmbedElement>(*m_innerNonSharedNode)
|| is<HTMLImageElement>(*m_innerNonSharedNode)
|| is<HTMLInputElement>(*m_innerNonSharedNode)
|| is<HTMLObjectElement>(*m_innerNonSharedNode)
|| is<SVGImageElement>(*m_innerNonSharedNode)) {
urlString = downcast<Element>(*m_innerNonSharedNode).imageSourceURL();
} else
return URL();
return m_innerNonSharedNode->document().completeURL(stripLeadingAndTrailingHTMLSpaces(urlString));
}
URL HitTestResult::absolutePDFURL() const
{
if (!m_innerNonSharedNode)
return URL();
if (!is<HTMLEmbedElement>(*m_innerNonSharedNode) && !is<HTMLObjectElement>(*m_innerNonSharedNode))
return URL();
HTMLPlugInImageElement& element = downcast<HTMLPlugInImageElement>(*m_innerNonSharedNode);
URL url = m_innerNonSharedNode->document().completeURL(stripLeadingAndTrailingHTMLSpaces(element.url()));
if (!url.isValid())
return URL();
if (element.serviceType() == "application/pdf" || (element.serviceType().isEmpty() && url.path().endsWithIgnoringASCIICase(".pdf")))
return url;
return URL();
}
URL HitTestResult::absoluteMediaURL() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
return mediaElt->currentSrc();
return URL();
#else
return URL();
#endif
}
bool HitTestResult::mediaSupportsFullscreen() const
{
#if ENABLE(VIDEO)
HTMLMediaElement* mediaElt(mediaElement());
return is<HTMLVideoElement>(mediaElt) && mediaElt->supportsFullscreen(HTMLMediaElementEnums::VideoFullscreenModeStandard);
#else
return false;
#endif
}
#if ENABLE(VIDEO)
HTMLMediaElement* HitTestResult::mediaElement() const
{
if (!m_innerNonSharedNode)
return nullptr;
if (!(m_innerNonSharedNode->renderer() && m_innerNonSharedNode->renderer()->isMedia()))
return nullptr;
if (is<HTMLMediaElement>(*m_innerNonSharedNode))
return downcast<HTMLMediaElement>(m_innerNonSharedNode.get());
return nullptr;
}
#endif
void HitTestResult::toggleMediaControlsDisplay() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
mediaElt->setControls(!mediaElt->controls());
#endif
}
void HitTestResult::toggleMediaLoopPlayback() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
mediaElt->setLoop(!mediaElt->loop());
#endif
}
bool HitTestResult::mediaIsInFullscreen() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElement = this->mediaElement())
return mediaElement->isVideo() && mediaElement->isStandardFullscreen();
#endif
return false;
}
void HitTestResult::toggleMediaFullscreenState() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElement = this->mediaElement()) {
if (mediaElement->isVideo() && mediaElement->supportsFullscreen(HTMLMediaElementEnums::VideoFullscreenModeStandard)) {
UserGestureIndicator indicator(ProcessingUserGesture, &mediaElement->document());
mediaElement->toggleStandardFullscreenState();
}
}
#endif
}
void HitTestResult::enterFullscreenForVideo() const
{
#if ENABLE(VIDEO)
HTMLMediaElement* mediaElement(this->mediaElement());
if (is<HTMLVideoElement>(mediaElement)) {
HTMLVideoElement& videoElement = downcast<HTMLVideoElement>(*mediaElement);
if (!videoElement.isFullscreen() && mediaElement->supportsFullscreen(HTMLMediaElementEnums::VideoFullscreenModeStandard)) {
UserGestureIndicator indicator(ProcessingUserGesture, &mediaElement->document());
videoElement.enterFullscreen();
}
}
#endif
}
bool HitTestResult::mediaControlsEnabled() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElement = this->mediaElement())
return mediaElement->controls();
#endif
return false;
}
bool HitTestResult::mediaLoopEnabled() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
return mediaElt->loop();
#endif
return false;
}
bool HitTestResult::mediaPlaying() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
return !mediaElt->paused();
#endif
return false;
}
void HitTestResult::toggleMediaPlayState() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
mediaElt->togglePlayState();
#endif
}
bool HitTestResult::mediaHasAudio() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
return mediaElt->hasAudio();
#endif
return false;
}
bool HitTestResult::mediaIsVideo() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
return is<HTMLVideoElement>(*mediaElt);
#endif
return false;
}
bool HitTestResult::mediaMuted() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
return mediaElt->muted();
#endif
return false;
}
void HitTestResult::toggleMediaMuteState() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
mediaElt->setMuted(!mediaElt->muted());
#endif
}
bool HitTestResult::isDownloadableMedia() const
{
#if ENABLE(VIDEO)
if (HTMLMediaElement* mediaElt = mediaElement())
return mediaElt->canSaveMediaData();
#endif
return false;
}
bool HitTestResult::isOverTextInsideFormControlElement() const
{
Node* node = innerNode();
if (!node)
return false;
if (!is<Element>(*node) || !downcast<Element>(*node).isTextField())
return false;
Frame* frame = node->document().frame();
if (!frame)
return false;
IntPoint framePoint = roundedPointInInnerNodeFrame();
if (!frame->rangeForPoint(framePoint))
return false;
VisiblePosition position = frame->visiblePositionForPoint(framePoint);
if (position.isNull())
return false;
RefPtr<Range> wordRange = enclosingTextUnitOfGranularity(position, WordGranularity, DirectionForward);
if (!wordRange)
return false;
return !wordRange->text().isEmpty();
}
URL HitTestResult::absoluteLinkURL() const
{
if (m_innerURLElement)
return m_innerURLElement->absoluteLinkURL();
return URL();
}
bool HitTestResult::isOverLink() const
{
return m_innerURLElement && m_innerURLElement->isLink();
}
String HitTestResult::titleDisplayString() const
{
if (!m_innerURLElement)
return String();
return displayString(m_innerURLElement->title(), m_innerURLElement.get());
}
String HitTestResult::textContent() const
{
if (!m_innerURLElement)
return String();
return m_innerURLElement->textContent();
}
// FIXME: This function needs a better name and may belong in a different class. It's not
// really isContentEditable(); it's more like needsEditingContextMenu(). In many ways, this
// function would make more sense in the ContextMenu class, except that WebElementDictionary
// hooks into it. Anyway, we should architect this better.
bool HitTestResult::isContentEditable() const
{
if (!m_innerNonSharedNode)
return false;
if (is<HTMLTextAreaElement>(*m_innerNonSharedNode))
return true;
if (is<HTMLInputElement>(*m_innerNonSharedNode))
return downcast<HTMLInputElement>(*m_innerNonSharedNode).isTextField();
return m_innerNonSharedNode->hasEditableStyle();
}
HitTestProgress HitTestResult::addNodeToListBasedTestResult(Node* node, const HitTestRequest& request, const HitTestLocation& locationInContainer, const LayoutRect& rect)
{
// If it is not a list-based hit test, this method has to be no-op.
if (!request.resultIsElementList()) {
ASSERT(!isRectBasedTest());
return HitTestProgress::Stop;
}
if (!node)
return HitTestProgress::Continue;
if (request.disallowsUserAgentShadowContent() && node->isInUserAgentShadowTree())
node = node->document().ancestorNodeInThisScope(node);
mutableListBasedTestResult().add(node);
if (request.includesAllElementsUnderPoint())
return HitTestProgress::Continue;
bool regionFilled = rect.contains(locationInContainer.boundingBox());
return regionFilled ? HitTestProgress::Stop : HitTestProgress::Continue;
}
HitTestProgress HitTestResult::addNodeToListBasedTestResult(Node* node, const HitTestRequest& request, const HitTestLocation& locationInContainer, const FloatRect& rect)
{
// If it is not a list-based hit test, this method has to be no-op.
if (!request.resultIsElementList()) {
ASSERT(!isRectBasedTest());
return HitTestProgress::Stop;
}
if (!node)
return HitTestProgress::Continue;
if (request.disallowsUserAgentShadowContent() && node->isInUserAgentShadowTree())
node = node->document().ancestorNodeInThisScope(node);
mutableListBasedTestResult().add(node);
if (request.includesAllElementsUnderPoint())
return HitTestProgress::Continue;
bool regionFilled = rect.contains(locationInContainer.boundingBox());
return regionFilled ? HitTestProgress::Stop : HitTestProgress::Continue;
}
void HitTestResult::append(const HitTestResult& other, const HitTestRequest& request)
{
ASSERT_UNUSED(request, request.resultIsElementList());
if (!m_innerNode && other.innerNode()) {
m_innerNode = other.innerNode();
m_innerNonSharedNode = other.innerNonSharedNode();
m_localPoint = other.localPoint();
m_pointInInnerNodeFrame = other.m_pointInInnerNodeFrame;
m_innerURLElement = other.URLElement();
m_scrollbar = other.scrollbar();
m_isOverWidget = other.isOverWidget();
}
if (other.m_listBasedTestResult) {
NodeSet& set = mutableListBasedTestResult();
for (const auto& node : *other.m_listBasedTestResult)
set.add(node.get());
}
}
const HitTestResult::NodeSet& HitTestResult::listBasedTestResult() const
{
if (!m_listBasedTestResult)
m_listBasedTestResult = std::make_unique<NodeSet>();
return *m_listBasedTestResult;
}
HitTestResult::NodeSet& HitTestResult::mutableListBasedTestResult()
{
if (!m_listBasedTestResult)
m_listBasedTestResult = std::make_unique<NodeSet>();
return *m_listBasedTestResult;
}
Vector<String> HitTestResult::dictationAlternatives() const
{
// Return the dictation context handle if the text at this point has DictationAlternative marker, which means this text is
if (!m_innerNonSharedNode)
return Vector<String>();
DocumentMarker* marker = m_innerNonSharedNode->document().markers().markerContainingPoint(pointInInnerNodeFrame(), DocumentMarker::DictationAlternatives);
if (!marker)
return Vector<String>();
Frame* frame = innerNonSharedNode()->document().frame();
if (!frame)
return Vector<String>();
return frame->editor().dictationAlternativesForMarker(*marker);
}
Node* HitTestResult::targetNode() const
{
Node* node = innerNode();
if (!node)
return 0;
if (node->isConnected())
return node;
Element* element = node->parentElement();
if (element && element->isConnected())
return element;
return node;
}
Element* HitTestResult::targetElement() const
{
for (Node* node = m_innerNode.get(); node; node = node->parentInComposedTree()) {
if (is<Element>(*node))
return downcast<Element>(node);
}
return nullptr;
}
Element* HitTestResult::innerNonSharedElement() const
{
Node* node = m_innerNonSharedNode.get();
if (!node)
return nullptr;
if (is<Element>(*node))
return downcast<Element>(node);
return node->parentElement();
}
String HitTestResult::linkSuggestedFilename() const
{
auto* urlElement = URLElement();
if (!is<HTMLAnchorElement>(urlElement))
return nullAtom();
return ResourceResponse::sanitizeSuggestedFilename(urlElement->attributeWithoutSynchronization(HTMLNames::downloadAttr));
}
bool HitTestResult::mediaSupportsEnhancedFullscreen() const
{
#if PLATFORM(MAC) && ENABLE(VIDEO) && ENABLE(VIDEO_PRESENTATION_MODE)
HTMLMediaElement* mediaElt(mediaElement());
return is<HTMLVideoElement>(mediaElt) && mediaElt->supportsFullscreen(HTMLMediaElementEnums::VideoFullscreenModePictureInPicture);
#else
return false;
#endif
}
bool HitTestResult::mediaIsInEnhancedFullscreen() const
{
#if PLATFORM(MAC) && ENABLE(VIDEO) && ENABLE(VIDEO_PRESENTATION_MODE)
HTMLMediaElement* mediaElt(mediaElement());
return is<HTMLVideoElement>(mediaElt) && mediaElt->fullscreenMode() == HTMLMediaElementEnums::VideoFullscreenModePictureInPicture;
#else
return false;
#endif
}
void HitTestResult::toggleEnhancedFullscreenForVideo() const
{
#if PLATFORM(MAC) && ENABLE(VIDEO) && ENABLE(VIDEO_PRESENTATION_MODE)
HTMLMediaElement* mediaElement(this->mediaElement());
if (!is<HTMLVideoElement>(mediaElement) || !mediaElement->supportsFullscreen(HTMLMediaElementEnums::VideoFullscreenModePictureInPicture))
return;
HTMLVideoElement& videoElement = downcast<HTMLVideoElement>(*mediaElement);
UserGestureIndicator indicator(ProcessingUserGesture, &mediaElement->document());
if (videoElement.fullscreenMode() == HTMLMediaElementEnums::VideoFullscreenModePictureInPicture)
videoElement.exitFullscreen();
else
videoElement.enterFullscreen(HTMLMediaElementEnums::VideoFullscreenModePictureInPicture);
#endif
}
} // namespace WebCore