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_casting(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 1904 matching lines @@
 
     if (!m_paused) {
         m_paused = true;
         scheduleTimeupdateEvent(false);
         scheduleEvent(EventTypeNames::pause);
     }
 
     updatePlayState();
 }
 
+void HTMLMediaElement::requestRemotePlayback()
+{
+    if (!m_player)
+        return;
+    m_player->requestRemotePlayback();

[acolwell GONE FROM CHROMIUM, 2014/08/05 19:36:34]

Use webMediaPlayer() here and below.

[acolwell GONE FROM CHROMIUM, 2014/08/05 19:36:34]

ASSERT(m_remoteRoutesAvailable) here and below so we can make sure the UI
doesn't spam the WebMediaPlayer?

[aberent, 2014/08/22 14:08:33]

Done.

[aberent, 2014/08/22 14:08:33]

Done.

+}
+
+void HTMLMediaElement::requestRemotePlaybackControl()
+{
+    if (!m_player)
+        return;
+    m_player->requestRemotePlaybackControl();
+}
+
 void HTMLMediaElement::closeMediaSource()
 {
     if (!m_mediaSource)
         return;
 
     m_mediaSource->close();
     m_mediaSource = nullptr;
 }
 
 bool HTMLMediaElement::loop() const
@@ skipping 869 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::mediaPlayerRemoteRouteAvailabilityChanged(bool routesAvailable)
+{
+    m_remoteRoutesAvailable = routesAvailable;
+    if (hasMediaControls())
+        mediaControls()->refreshCastButtonVisibility();
+}
+
+void HTMLMediaElement::mediaPlayerConnectedToRemoteDevice()
+{
+    m_casting = true;
+    if (hasMediaControls())
+        mediaControls()->startedCasting();
+}
+
+void HTMLMediaElement::mediaPlayerDisconnectedFromRemoteDevice()
+{
+    m_casting = false;
+    if (hasMediaControls())
+        mediaControls()->stoppedCasting();
+}
+
 // MediaPlayerPresentation methods
 void HTMLMediaElement::mediaPlayerRepaint()
 {
     if (m_webLayer)
         m_webLayer->invalidate();
 
     updateDisplayState();
     if (renderer())
         renderer()->paintInvalidationForWholeRenderer();
 }
@@ skipping 455 matching lines @@
     ensureUserAgentShadowRoot().appendChild(mediaControls);
 
     if (!shouldShowControls() || !inDocument())
         mediaControls->hide();
 
     return true;
 }
 
 void HTMLMediaElement::configureMediaControls()
 {
-    if (!shouldShowControls() || !inDocument()) {

[acolwell GONE FROM CHROMIUM, 2014/08/05 19:36:34]

Doesn't removing this end up causing the controls to get created even in
situations where they shouldn't be shown? Why are you making this change?

[aberent, 2014/08/22 14:08:33]

The problem I have is that I need the overlay cast button precisely when I don't
have standard controls. The way I have done this is by including it in the
controls, always creating the controls, and controlling carefully their
visibility. The alternative, I think, would have been to have a second shadow
DOM, duplicating much of logic of the controls, but I could see this causing all
sorts of difficulties (I was particularly put off from that option by the
ASSERT_WITH_SECURITY_IMPLICATIONS on line 3659).

+    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 39 matching lines @@
         String kind = textTrack->kind();
 
         if (kind == TextTrack::subtitlesKeyword() || kind == TextTrack::captionsKeyword())
             textTrack->setHasBeenConfigured(false);
     }
     configureTextTracks();
 }
 
 void* HTMLMediaElement::preDispatchEventHandler(Event* event)
 {
-    if (event && event->type() == EventTypeNames::webkitfullscreenchange)
+    if (event && event->type() == EventTypeNames::webkitfullscreenchange) {

[acolwell GONE FROM CHROMIUM, 2014/08/05 19:36:34]

nit: Revert. Change isn't necessary.

[aberent, 2014/08/22 14:08:33]

Done.

         configureMediaControls();
-
+    }
     return 0;
 }
 
 void HTMLMediaElement::createMediaPlayer()
 {
     AudioSourceProviderClientLockScope scope(*this);
 
     closeMediaSource();
 
     m_player = MediaPlayer::create(this);
@@ skipping 256 matching lines @@
 
 #if ENABLE(WEB_AUDIO)
 void HTMLMediaElement::clearWeakMembers(Visitor* visitor)
 {
     if (!visitor->isAlive(m_audioSourceNode) && audioSourceProvider())
         audioSourceProvider()->setClient(0);
 }
 #endif
 
 }