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 334 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 1892 matching lines @@
 
     if (!m_paused) {
         m_paused = true;
         scheduleTimeupdateEvent(false);
         scheduleEvent(EventTypeNames::pause);
     }
 
     updatePlayState();
 }
 
+void HTMLMediaElement::requestRemotePlayback()
+{
+    ASSERT(m_remoteRoutesAvailable);
+    webMediaPlayer()->requestRemotePlayback();
+}
+
+void HTMLMediaElement::requestRemotePlaybackControl()
+{
+    ASSERT(m_remoteRoutesAvailable);
+    webMediaPlayer()->requestRemotePlaybackControl();
+}
+
 void HTMLMediaElement::closeMediaSource()
 {
     if (!m_mediaSource)
         return;
 
     m_mediaSource->close();
     m_mediaSource = nullptr;
 }
 
 bool HTMLMediaElement::loop() const
@@ skipping 890 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;
+    if (hasMediaControls())
+        mediaControls()->stoppedCasting();
+}
+
 // MediaPlayerPresentation methods
 void HTMLMediaElement::mediaPlayerRepaint()
 {
     if (m_webLayer)
         m_webLayer->invalidate();
 
     updateDisplayState();
     if (renderer())
         renderer()->setShouldDoFullPaintInvalidation(true);
 }
@@ skipping 235 matching lines @@
         AudioSourceProviderClientLockScope scope(*this);
         clearMediaPlayerAndAudioSourceProviderClientWithoutLocking();
     }
 
     stopPeriodicTimers();
     m_loadTimer.stop();
 
     m_pendingActionFlags &= ~flags;
     m_loadState = WaitingForSource;
 
+    // We can't cast if we don't have a media player.
+    m_remoteRoutesAvailable = false;
+    m_playingRemotely = false;
+    if (hasMediaControls()) {
+        mediaControls()->refreshCastButtonVisibility();
+    }
+
     if (m_textTracks)
         configureTextTrackDisplay(AssumeNoVisibleChange);
 }
 
 void HTMLMediaElement::stop()
 {
     WTF_LOG(Media, "HTMLMediaElement::stop");
 
     m_active = false;
     userCancelledLoad();
@@ skipping 180 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 (!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 52 matching lines @@
 }
 
 void HTMLMediaElement::createMediaPlayer()
 {
     AudioSourceProviderClientLockScope scope(*this);
 
     closeMediaSource();
 
     m_player = MediaPlayer::create(this);
 
+    // We haven't yet found out if any remote routes are available.
+    m_remoteRoutesAvailable = false;
+    m_playingRemotely = false;
+
 #if ENABLE(WEB_AUDIO)
     if (m_audioSourceNode && audioSourceProvider()) {
         // When creating the player, make sure its AudioSourceProvider knows about the client.
         audioSourceProvider()->setClient(m_audioSourceNode);
     }
 #endif
 }
 
 #if ENABLE(WEB_AUDIO)
 void HTMLMediaElement::setAudioSourceNode(AudioSourceProviderClient* sourceNode)
@@ skipping 16 matching lines @@
 
 const AtomicString& HTMLMediaElement::mediaGroup() const
 {
     return fastGetAttribute(mediagroupAttr);
 }
 
 void HTMLMediaElement::setMediaGroup(const AtomicString& group)
 {
     // When a media element is created with a mediagroup attribute, and when a media element's mediagroup
     // attribute is set, changed, or removed, the user agent must run the following steps:
-    // 1. Let m [this] be the media element in question.
+    // 1. Let _R [this] be the media element in question.
     // 2. Let m have no current media controller, if it currently has one.
     setControllerInternal(nullptr);
 
     // 3. If m's mediagroup attribute is being removed, then abort these steps.
     if (group.isNull() || group.isEmpty())
         return;
 
     // 4. If there is another media element whose Document is the same as m's Document (even if one or both
     // of these elements are not actually in the Document),
     WeakMediaElementSet elements = documentToElementSetMap().get(&document());
@@ skipping 208 matching lines @@
 
 #if ENABLE(WEB_AUDIO)
 void HTMLMediaElement::clearWeakMembers(Visitor* visitor)
 {
     if (!visitor->isAlive(m_audioSourceNode) && audioSourceProvider())
         audioSourceProvider()->setClient(0);
 }
 #endif
 
 }