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():
Vector<RefPtr<Element> > replacementFullscreenElementStack;
replacementFullscreenElementStack.append(fullscreenElementFrom(document()->topDocument()));
FullscreenElementStack* topFullscreenElementStack = from(document()->topDocument());
topFullscreenElementStack->m_fullScreenElementStack.swap(replacementFullscreenElementStack);
topFullscreenElementStack->webkitExitFullscreen();
}
void FullscreenController::willExitFullScreen()
{
if (!m_fullScreenFrame)
return;
if (Document* doc = m_fullScreenFrame->document()) {
FullscreenElementStack* fullscreen = FullscreenElementStack::fromIfExists(doc);
if (!fullscreen)
return;
if (fullscreen->isFullScreen(doc)) {
// When the client exits from full screen we have to call webkitCancelFullScreen to
// notify the document. While doing that, suppress notifications back to the client.
m_isCancelingFullScreen = true;
fullscreen->webkitCancelFullScreen();
m_isCancelingFullScreen = false;
fullscreen->webkitWillExitFullScreenForElement(0);
}
}
}
void FullscreenController::willExitFullScreen()
{
if (!m_fullScreenFrame)
return;
if (Document* doc = m_fullScreenFrame->document()) {
FullscreenElementStack* fullscreen = FullscreenElementStack::fromIfExists(*doc);
if (!fullscreen)
return;
if (fullscreen->isFullScreen(*doc)) {
// When the client exits from full screen we have to call webkitCancelFullScreen to
// notify the document. While doing that, suppress notifications back to the client.
m_isCancelingFullScreen = true;
fullscreen->webkitCancelFullScreen();
m_isCancelingFullScreen = false;
fullscreen->webkitWillExitFullScreenForElement(0);
if (RuntimeEnabledFeatures::overlayFullscreenVideoEnabled() && m_webViewImpl->layerTreeView())
m_webViewImpl->layerTreeView()->setHasTransparentBackground(m_webViewImpl->isTransparent());
}
}
}
