WebKit merge 41447:41498 [third_party/WebKit]

third_party/WebKit/WebCore/html/HTMLMediaElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009 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 58 matching lines @@
     : HTMLElement(tagName, doc)
     , m_loadTimer(this, &HTMLMediaElement::loadTimerFired)
     , m_asyncEventTimer(this, &HTMLMediaElement::asyncEventTimerFired)
     , m_progressEventTimer(this, &HTMLMediaElement::progressEventTimerFired)
     , m_defaultPlaybackRate(1.0f)
     , m_networkState(EMPTY)
     , m_readyState(DATA_UNAVAILABLE)
     , m_begun(false)
     , m_loadedFirstFrame(false)
     , m_autoplaying(true)
-    , m_currentLoop(0)
     , m_volume(1.0f)
     , m_muted(false)
     , m_paused(true)
     , m_seeking(false)
     , m_currentTimeDuringSeek(0)
     , m_previousProgress(0)
     , m_previousProgressTime(numeric_limits<double>::max())
     , m_sentStalledEvent(false)
-    , m_bufferingRate(0)
     , m_loadNestingLevel(0)
     , m_terminateLoadBelowNestingLevel(0)
     , m_pausedInternal(false)
     , m_inActiveDocument(true)
     , m_player(0)
     , m_restrictions(NoRestrictions)
     , m_processingMediaPlayerCallback(0)
     , m_sendProgressEvents(true)
 #if ENABLE(PLUGIN_PROXY_FOR_VIDEO)
     , m_needWidgetUpdate(false)
@@ skipping 193 matching lines @@
 String HTMLMediaElement::currentSrc() const
 {
     return m_currentSrc;
 }
 
 HTMLMediaElement::NetworkState HTMLMediaElement::networkState() const
 {
     return m_networkState;
 }
 
-float HTMLMediaElement::bufferingRate()
-{
-    if (!m_player)
-        return 0;
-    return m_bufferingRate;
-    //return m_player->dataRate();
-}
-
 String HTMLMediaElement::canPlayType(const String& mimeType) const
 {
     MediaPlayer::SupportsType support = MediaPlayer::supportsType(ContentType(mimeType));
     String canPlay;
 
     // 4.8.10.3
     switch (support)
     {
         case MediaPlayer::IsNotSupported:
             canPlay = "no";
@@ skipping 25 matching lines @@
     ContentType contentType("");
 
     // 3.14.9.4. Loading the media resource
     // 1
     // if an event generated during load() ends up re-entering load(), terminate previous instances
     m_loadNestingLevel++;
     m_terminateLoadBelowNestingLevel = m_loadNestingLevel;
     
     m_progressEventTimer.stop();
     m_sentStalledEvent = false;
-    m_bufferingRate = 0;
     
     m_loadTimer.stop();
     
     // 2
     if (m_begun) {
         m_begun = false;
         m_error = MediaError::create(MediaError::MEDIA_ERR_ABORTED);
         if (m_sendProgressEvents)
             initAndDispatchProgressEvent(eventNames().abortEvent);
         if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
@@ skipping 11 matching lines @@
     // 5
     if (networkState() != EMPTY) {
         m_networkState = EMPTY;
         m_readyState = DATA_UNAVAILABLE;
         m_paused = true;
         m_seeking = false;
         if (m_player) {
             m_player->pause();
             m_player->seek(0);
         }
-        m_currentLoop = 0;
         dispatchEventForType(eventNames().emptiedEvent, false, true);
         if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
             goto end;
     }
     
     // 6
     mediaSrc = selectMediaURL(contentType);
     if (mediaSrc.isEmpty()) {
         ec = INVALID_STATE_ERR;
         goto end;
@@ skipping 66 matching lines @@
     
     // 3.14.9.4. Loading the media resource
     // 14
     if (state == MediaPlayer::LoadFailed) {
         //delete m_player;
         //m_player = 0;
         // FIXME better error handling
         m_error = MediaError::create(MediaError::MEDIA_ERR_NETWORK);
         m_begun = false;
         m_progressEventTimer.stop();
-        m_bufferingRate = 0;
         
         initAndDispatchProgressEvent(eventNames().errorEvent); 
         if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
             return;
         
         m_networkState = EMPTY;
 
         if (isVideo())
             static_cast<HTMLVideoElement*>(this)->updatePosterImage();
 
         dispatchEventForType(eventNames().emptiedEvent, false, true);
         return;
     }
     
     if (state >= MediaPlayer::Loading && m_networkState < LOADING)
         m_networkState = LOADING;
     
     if (state >= MediaPlayer::LoadedMetaData && m_networkState < LOADED_METADATA) {
-        m_player->seek(effectiveStart());
         m_networkState = LOADED_METADATA;
         
         dispatchEventForType(eventNames().durationchangeEvent, false, true);
         if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
             return;
         
         dispatchEventForType(eventNames().loadedmetadataEvent, false, true);
         if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
             return;
     }
@@ skipping 24 matching lines @@
         dispatchEventForType(eventNames().canshowcurrentframeEvent, false, true);
         if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
             return;
     }
     
     // 15
     if (state == MediaPlayer::Loaded && m_networkState < LOADED) {
         m_begun = false;
         m_networkState = LOADED;
         m_progressEventTimer.stop();
-        m_bufferingRate = 0;
         initAndDispatchProgressEvent(eventNames().loadEvent); 
     }
 }
 
 void HTMLMediaElement::mediaPlayerReadyStateChanged(MediaPlayer*)
 {
     beginProcessingMediaPlayerCallback();
 
     MediaPlayer::ReadyState state = m_player->readyState();
     setReadyState((ReadyState)state);
@@ skipping 40 matching lines @@
     }
     updatePlayState();
 }
 
 void HTMLMediaElement::progressEventTimerFired(Timer<HTMLMediaElement>*)
 {
     ASSERT(m_player);
     unsigned progress = m_player->bytesLoaded();
     double time = WTF::currentTime();
     double timedelta = time - m_previousProgressTime;
-    if (timedelta)
-        m_bufferingRate = (float)(0.8 * m_bufferingRate + 0.2 * ((float)(progress - m_previousProgress)) / timedelta);
     
     if (progress == m_previousProgress) {
         if (timedelta > 3.0 && !m_sentStalledEvent) {
-            m_bufferingRate = 0;
             initAndDispatchProgressEvent(eventNames().stalledEvent);
             m_sentStalledEvent = true;
         }
     } else {
         initAndDispatchProgressEvent(eventNames().progressEvent);
         m_previousProgress = progress;
         m_previousProgressTime = time;
         m_sentStalledEvent = false;
     }
 }
 
 void HTMLMediaElement::seek(float time, ExceptionCode& ec)
 {
     // 3.14.9.8. Seeking
     // 1
     if (networkState() < LOADED_METADATA) {
         ec = INVALID_STATE_ERR;
         return;
     }
-    
-    // 2
-    float minTime;
-    if (currentLoop() == 0)
-        minTime = effectiveStart();
-    else
-        minTime = effectiveLoopStart();
- 
-    // 3
-    float maxTime = currentLoop() == playCount() - 1 ? effectiveEnd() : effectiveLoopEnd();
-    
-    // 4
-    time = min(time, maxTime);
-    
-    // 5
-    time = max(time, minTime);
+
+    time = min(time, duration());
+    time = max(time, 0.0f);
     
     // 6
     RefPtr<TimeRanges> seekableRanges = seekable();
     if (!seekableRanges->contain(time)) {
         ec = INDEX_SIZE_ERR;
         return;
     }
     
     // 7
     m_currentTimeDuringSeek = time;
 
     // 8
     m_seeking = true;
     
     // 9
     dispatchEventForType(eventNames().timeupdateEvent, false, true);
     
     // 10
     // As soon as the user agent has established whether or not the media data for the new playback position is available, 
     // and, if it is, decoded enough data to play back that position, the seeking DOM attribute must be set to false.
-    if (m_player) {
-        m_player->setEndTime(maxTime);
+    if (m_player)
         m_player->seek(time);
-    }
 }
 
 HTMLMediaElement::ReadyState HTMLMediaElement::readyState() const
 {
     return m_readyState;
 }
 
 bool HTMLMediaElement::seeking() const
 {
     return m_seeking;
@@ skipping 87 matching lines @@
 {
     // 3.14.9.7. Playing the media resource
     if (!m_player || networkState() == EMPTY) {
         ec = 0;
         load(ec);
         if (ec)
             return;
     }
     ExceptionCode unused;
     if (endedPlayback()) {
-        m_currentLoop = 0;
-        seek(effectiveStart(), unused);
+        seek(0, unused);
     }
     setPlaybackRate(defaultPlaybackRate(), unused);
     
     if (m_paused) {
         m_paused = false;
         dispatchEventAsync(eventNames().playEvent);
     }
 
     m_autoplaying = false;
 
@@ skipping 25 matching lines @@
         m_paused = true;
         dispatchEventAsync(eventNames().timeupdateEvent);
         dispatchEventAsync(eventNames().pauseEvent);
     }
 
     m_autoplaying = false;
     
     updatePlayState();
 }
 
-unsigned HTMLMediaElement::playCount() const
+bool HTMLMediaElement::loop() const
 {
-    bool ok;
-    unsigned count = getAttribute(playcountAttr).string().toUInt(&ok);
-    return (count > 0 && ok) ? count : 1; 
+    return hasAttribute(loopAttr);
 }
 
-void HTMLMediaElement::setPlayCount(unsigned count, ExceptionCode& ec)
+void HTMLMediaElement::setLoop(bool b)
 {
-    if (!count) {
-        ec = INDEX_SIZE_ERR;
-        return;
-    }
-    setAttribute(playcountAttr, String::number(count));
-    checkIfSeekNeeded();
-}
-
-float HTMLMediaElement::start() const 
-{ 
-    return getTimeOffsetAttribute(startAttr, 0); 
-}
-
-void HTMLMediaElement::setStart(float time) 
-{ 
-    setTimeOffsetAttribute(startAttr, time); 
-    checkIfSeekNeeded();
-}
-
-float HTMLMediaElement::end() const 
-{ 
-    return getTimeOffsetAttribute(endAttr, std::numeric_limits<float>::infinity()); 
-}
-
-void HTMLMediaElement::setEnd(float time) 
-{ 
-    setTimeOffsetAttribute(endAttr, time); 
-    checkIfSeekNeeded();
-}
-
-float HTMLMediaElement::loopStart() const 
-{ 
-    return getTimeOffsetAttribute(loopstartAttr, start()); 
-}
-
-void HTMLMediaElement::setLoopStart(float time) 
-{
-    setTimeOffsetAttribute(loopstartAttr, time); 
-    checkIfSeekNeeded();
-}
-
-float HTMLMediaElement::loopEnd() const 
-{ 
-    return getTimeOffsetAttribute(loopendAttr, end()); 
-}
-
-void HTMLMediaElement::setLoopEnd(float time) 
-{ 
-    setTimeOffsetAttribute(loopendAttr, time); 
-    checkIfSeekNeeded();
-}
-
-unsigned HTMLMediaElement::currentLoop() const
-{
-    return m_currentLoop;
-}
-
-void HTMLMediaElement::setCurrentLoop(unsigned currentLoop)
-{
-    m_currentLoop = currentLoop;
+    setBooleanAttribute(loopAttr, b);
 }
 
 bool HTMLMediaElement::controls() const
 {
     Frame* frame = document()->frame();
 
     // always show controls when scripting is disabled
     if (frame && !frame->script()->isEnabled())
         return true;
 
@@ skipping 104 matching lines @@
                 mediaSrc = source->src().string();
                 break;
             }
         }
     }
     if (!mediaSrc.isEmpty())
         mediaSrc = document()->completeURL(mediaSrc).string();
     return mediaSrc;
 }
 
-void HTMLMediaElement::checkIfSeekNeeded()
-{
-    // 3.14.9.5. Offsets into the media resource
-    // 1
-    if (playCount() <= m_currentLoop)
-        m_currentLoop = playCount() - 1;
-    
-    // 2
-    if (networkState() <= LOADING)
-        return;
-    
-    // 3
-    ExceptionCode ec;
-    float time = currentTime();
-    if (!m_currentLoop && time < effectiveStart())
-        seek(effectiveStart(), ec);
-
-    // 4
-    if (m_currentLoop && time < effectiveLoopStart())
-        seek(effectiveLoopStart(), ec);
-        
-    // 5
-    if (m_currentLoop < playCount() - 1 && time > effectiveLoopEnd()) {
-        seek(effectiveLoopStart(), ec);
-        m_currentLoop++;
-    }
-    
-    // 6
-    if (m_currentLoop == playCount() - 1 && time > effectiveEnd())
-        seek(effectiveEnd(), ec);
-
-    updatePlayState();
-}
-
 void HTMLMediaElement::mediaPlayerTimeChanged(MediaPlayer*)
 {
     beginProcessingMediaPlayerCallback();
 
     if (readyState() >= CAN_PLAY)
         m_seeking = false;
     
     float now = currentTime();
-    if (m_currentLoop < playCount() - 1 && now >= effectiveLoopEnd()) {
-        ExceptionCode ec;
-        seek(effectiveLoopStart(), ec);
-        m_currentLoop++;
-        dispatchEventForType(eventNames().timeupdateEvent, false, true);
-    }
-    
-    if (m_currentLoop == playCount() - 1 && now >= effectiveEnd()) {
-        dispatchEventForType(eventNames().timeupdateEvent, false, true);
-        dispatchEventForType(eventNames().endedEvent, false, true);
+    if (now >= duration()) {
+        if (loop()) {
+            ExceptionCode ec;
+            seek(0, ec);
+            dispatchEventForType(eventNames().timeupdateEvent, false, true);
+        } else {
+            dispatchEventForType(eventNames().timeupdateEvent, false, true);
+            dispatchEventForType(eventNames().endedEvent, false, true);
+        }
     }
 
     updatePlayState();
 
     endProcessingMediaPlayerCallback();
 }
 
 void HTMLMediaElement::mediaPlayerRepaint(MediaPlayer*)
 {
     beginProcessingMediaPlayerCallback();
@@ skipping 24 matching lines @@
 }
 
 PassRefPtr<TimeRanges> HTMLMediaElement::seekable() const
 {
     // FIXME real ranges support
     if (!m_player || !m_player->maxTimeSeekable())
         return TimeRanges::create();
     return TimeRanges::create(0, m_player->maxTimeSeekable());
 }
 
-float HTMLMediaElement::effectiveStart() const
-{
-    if (!m_player)
-        return 0;
-    return min(start(), m_player->duration());
-}
-
-float HTMLMediaElement::effectiveEnd() const
-{
-    if (!m_player)
-        return 0;
-    return min(max(end(), max(start(), loopStart())), m_player->duration());
-}
-
-float HTMLMediaElement::effectiveLoopStart() const
-{
-    if (!m_player)
-        return 0;
-    return min(loopStart(), m_player->duration());
-}
-
-float HTMLMediaElement::effectiveLoopEnd() const
-{
-    if (!m_player)
-        return 0;
-    return min(max(start(), max(loopStart(), loopEnd())), m_player->duration());
-}
-
 bool HTMLMediaElement::activelyPlaying() const
 {
     return !paused() && readyState() >= CAN_PLAY && !endedPlayback(); // && !stoppedDueToErrors() && !pausedForUserInteraction();
 }
 
 bool HTMLMediaElement::endedPlayback() const
 {
-    return networkState() >= LOADED_METADATA && currentTime() >= effectiveEnd() && currentLoop() == playCount() - 1;
+    return networkState() >= LOADED_METADATA && currentTime() >= duration() && !loop();
 }
     
 void HTMLMediaElement::updateVolume()
 {
     if (!m_player)
         return;
 
     // Avoid recursion when the player reports volume changes.
     if (!processingMediaPlayerCallback()) {
         Page* page = document()->page();
@@ skipping 10 matching lines @@
 {
     if (!m_player)
         return;
     
     if (m_pausedInternal) {
         if (!m_player->paused())
             m_player->pause();
         return;
     }
     
-    m_player->setEndTime(currentLoop() == playCount() - 1 ? effectiveEnd() : effectiveLoopEnd());
-
-    bool shouldBePlaying = activelyPlaying() && currentTime() < effectiveEnd();
+    bool shouldBePlaying = activelyPlaying();
     if (shouldBePlaying && m_player->paused())
         m_player->play();
     else if (!shouldBePlaying && !m_player->paused())
         m_player->pause();
     
     if (renderer())
         renderer()->updateFromElement();
 }
     
 void HTMLMediaElement::setPausedInternal(bool b)
@@ skipping 112 matching lines @@
     
     document()->updateRendering();
     if (m_needWidgetUpdate && renderer())
         static_cast<RenderPartObject*>(renderer())->updateWidget(true);
 }
 #endif
 
 }
 
 #endif