Implement media cast buttons

Source/core/html/HTMLMediaElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 336 matching lines @@
     , m_seeking(false)
     , m_sentStalledEvent(false)
     , m_sentEndEvent(false)
     , m_pausedInternal(false)
     , m_closedCaptionsVisible(false)
     , m_completelyLoaded(false)
     , m_havePreparedToPlay(false)
     , m_tracksAreReady(true)
     , m_haveVisibleTextTrack(false)
     , m_processingPreferenceChange(false)
+    , m_remoteRoutesAvailable(false)
+    , m_playingRemotely(false)
 #if ENABLE(OILPAN)
     , m_isFinalizing(false)
     , m_closeMediaSourceWhenFinalizing(false)
 #endif
     , m_lastTextTrackUpdateTime(-1)
     , m_audioTracks(AudioTrackList::create(*this))
     , m_videoTracks(VideoTrackList::create(*this))
     , m_textTracks(nullptr)
     , m_ignoreTrackDisplayUpdate(0)
 #if ENABLE(WEB_AUDIO)
@@ skipping 1906 matching lines @@
 
     if (!m_paused) {
         m_paused = true;
         scheduleTimeupdateEvent(false);
         scheduleEvent(EventTypeNames::pause);
     }
 
     updatePlayState();
 }
 
+void HTMLMediaElement::requestRemotePlayback()
+{
+    if (!m_player)

[acolwell GONE FROM CHROMIUM, 2014/09/06 00:32:02]

Please add code to clearMediaPlayer() and createMediaPlayer() that sets
m_remoteRoutesAvailable to false when m_player assigned. I think if you do that
then this guard and the one in the method below aren't necessary.

[aberent, 2014/09/09 18:35:30]

Done.

+        return;
+    ASSERT(m_remoteRoutesAvailable);
+    webMediaPlayer()->requestRemotePlayback();
+}
+
+void HTMLMediaElement::requestRemotePlaybackControl()
+{
+    if (!m_player)
+        return;
+    ASSERT(m_remoteRoutesAvailable);
+    webMediaPlayer()->requestRemotePlaybackControl();
+}
+
 void HTMLMediaElement::closeMediaSource()
 {
     if (!m_mediaSource)
         return;
 
     m_mediaSource->close();
     m_mediaSource = nullptr;
 }
 
 bool HTMLMediaElement::loop() const
@@ skipping 894 matching lines @@
 void HTMLMediaElement::mediaPlayerRequestSeek(double time)
 {
     // The player is the source of this seek request.
     if (m_mediaController) {
         m_mediaController->setCurrentTime(time, IGNORE_EXCEPTION);
         return;
     }
     setCurrentTime(time, IGNORE_EXCEPTION);
 }
 
+void HTMLMediaElement::remoteRouteAvailabilityChanged(bool routesAvailable)
+{
+    m_remoteRoutesAvailable = routesAvailable;
+    if (hasMediaControls())
+        mediaControls()->refreshCastButtonVisibility();
+}
+
+void HTMLMediaElement::connectedToRemoteDevice()
+{
+    m_playingRemotely = true;
+    if (hasMediaControls())
+        mediaControls()->startedCasting();
+}
+
+void HTMLMediaElement::disconnectedFromRemoteDevice()
+{
+    m_playingRemotely = false;

[acolwell GONE FROM CHROMIUM, 2014/09/06 00:32:01]

You'll probably need to reset this on m_player assignment as well.

[aberent, 2014/09/09 18:35:30]

Done.

+    if (hasMediaControls())
+        mediaControls()->stoppedCasting();
+}
+
 // MediaPlayerPresentation methods
 void HTMLMediaElement::mediaPlayerRepaint()
 {
     if (m_webLayer)
         m_webLayer->invalidate();
 
     updateDisplayState();
     if (renderer())
         renderer()->setShouldDoFullPaintInvalidation(true);
 }
@@ skipping 433 matching lines @@
     ensureUserAgentShadowRoot().appendChild(mediaControls);
 
     if (!shouldShowControls() || !inDocument())
         mediaControls->hide();
 
     return true;
 }
 
 void HTMLMediaElement::configureMediaControls()
 {
-    if (!shouldShowControls() || !inDocument()) {
+    if (!inDocument()) {
         if (hasMediaControls())
             mediaControls()->hide();
         return;
     }
 
     if (!hasMediaControls() && !createMediaControls())
         return;
 
     mediaControls()->reset();
-    mediaControls()->show();
+    if (shouldShowControls())
+        mediaControls()->show();
+    else
+        mediaControls()->hide();
 }
 
 void HTMLMediaElement::configureTextTrackDisplay(VisibilityChangeAssumption assumption)
 {
     ASSERT(m_textTracks);
     WTF_LOG(Media, "HTMLMediaElement::configureTextTrackDisplay");
 
     if (m_processingPreferenceChange)
         return;
 
@@ skipping 318 matching lines @@
 
 #if ENABLE(WEB_AUDIO)
 void HTMLMediaElement::clearWeakMembers(Visitor* visitor)
 {
     if (!visitor->isAlive(m_audioSourceNode) && audioSourceProvider())
         audioSourceProvider()->setClient(0);
 }
 #endif
 
 }