WIP - WebMediaPlayer switch media renderer.

third_party/WebKit/Source/web/FullscreenController.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 23 matching lines @@
 #include "core/dom/Fullscreen.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/PageScaleConstraintsSet.h"
 #include "core/html/HTMLMediaElement.h"
 #include "core/html/HTMLVideoElement.h"
 #include "core/layout/LayoutFullScreen.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "public/platform/WebLayerTreeView.h"
 #include "public/web/WebFrameClient.h"
+#include "third_party/WebKit/Source/core/dom/TagCollection.h"
 #include "web/WebLocalFrameImpl.h"
 #include "web/WebSettingsImpl.h"
 #include "web/WebViewImpl.h"
 
 namespace blink {
 
 FullscreenController* FullscreenController::create(WebViewImpl* webViewImpl)
 {
     return new FullscreenController(webViewImpl);
 }
@@ skipping 28 matching lines @@
         m_haveEnteredFullscreen = true;
     }
 
     Fullscreen::from(document).didEnterFullscreenForElement(element);
     DCHECK_EQ(Fullscreen::currentFullScreenElementFrom(document), element);
 
     if (isHTMLVideoElement(element)) {
         HTMLVideoElement* videoElement = toHTMLVideoElement(element);
         if (videoElement->usesOverlayFullscreenVideo() && m_webViewImpl->layerTreeView())
             m_webViewImpl->layerTreeView()->setHasTransparentBackground(true);
+    } else {
+        // Notify all the video descendants that its ancestor enters full screen.
+        for (HTMLVideoElement& videoElement : Traversal<HTMLVideoElement>::descendantsOf(*element)) {
+            if (videoElement.webMediaPlayer())
+                videoElement.webMediaPlayer()->ancestorEnteredFullscreen();
+        }
     }
 }
 
 void FullscreenController::didExitFullscreen()
 {
     if (!m_fullscreenFrame)
         return;
 
     if (m_haveEnteredFullscreen)
         updatePageScaleConstraints(true);
@@ skipping 12 matching lines @@
                 if (isHTMLVideoElement(element) && m_webViewImpl->layerTreeView())
                     m_webViewImpl->layerTreeView()->setHasTransparentBackground(m_webViewImpl->isTransparent());
 
                 // We need to wait until style and layout are updated in order
                 // to propertly restore scroll offsets since content may not be
                 // overflowing in the same way until they do.
                 if (m_haveEnteredFullscreen)
                     m_needsScrollAndScaleRestore = true;
 
                 fullscreen->didExitFullscreen();
+                if (!isHTMLVideoElement(element)) {
+                    // Notify all the video descendants that its anecestor exits full screen.
+                    for (HTMLVideoElement& videoElement : Traversal<HTMLVideoElement>::descendantsOf(*element)) {
+                        if (videoElement.webMediaPlayer())
+                            videoElement.webMediaPlayer()->ancestorExitedFullscreen();
+                    }
+                }
             }
         }
     }
 
     m_haveEnteredFullscreen = false;
     m_fullscreenFrame.clear();
 }
 
 void FullscreenController::enterFullscreenForElement(Element* element)
 {
@@ skipping 94 matching lines @@
     m_webViewImpl->updateMainFrameLayoutSize();
 }
 
 DEFINE_TRACE(FullscreenController)
 {
     visitor->trace(m_provisionalFullscreenElement);
     visitor->trace(m_fullscreenFrame);
 }
 
 } // namespace blink