/*
* Copyright (C) 2007, 2008 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
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#if ENABLE(VIDEO)
#include "HTMLMediaElement.h"
#include "CSSHelper.h"
#include "CSSPropertyNames.h"
#include "CSSValueKeywords.h"
#include "Event.h"
#include "EventNames.h"
#include "ExceptionCode.h"
#include "HTMLDocument.h"
#include "HTMLNames.h"
#include "HTMLSourceElement.h"
#include "HTMLVideoElement.h"
#include <limits>
#include "MediaError.h"
#include "MediaList.h"
#include "MediaQueryEvaluator.h"
#include "MIMETypeRegistry.h"
#include "MediaPlayer.h"
#include "Page.h"
#include "RenderVideo.h"
#include "TimeRanges.h"
#include <wtf/CurrentTime.h>
#include <wtf/MathExtras.h>
using namespace std;
namespace WebCore {
using namespace HTMLNames;
HTMLMediaElement::HTMLMediaElement(const QualifiedName& tagName, Document* doc)
: 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)
{
document()->registerForDocumentActivationCallbacks(this);
document()->registerForMediaVolumeCallbacks(this);
}
HTMLMediaElement::~HTMLMediaElement()
{
document()->unregisterForDocumentActivationCallbacks(this);
document()->unregisterForMediaVolumeCallbacks(this);
}
bool HTMLMediaElement::checkDTD(const Node* newChild)
{
return newChild->hasTagName(sourceTag) || HTMLElement::checkDTD(newChild);
}
void HTMLMediaElement::attributeChanged(Attribute* attr, bool preserveDecls)
{
HTMLElement::attributeChanged(attr, preserveDecls);
const QualifiedName& attrName = attr->name();
if (attrName == srcAttr) {
// 3.14.9.2.
// change to src attribute triggers load()
if (inDocument() && m_networkState == EMPTY)
scheduleLoad();
} if (attrName == controlsAttr) {
if (!isVideo() && attached() && (controls() != (renderer() != 0))) {
detach();
attach();
}
if (renderer())
renderer()->updateFromElement();
}
}
bool HTMLMediaElement::rendererIsNeeded(RenderStyle* style)
{
return controls() ? HTMLElement::rendererIsNeeded(style) : false;
}
RenderObject* HTMLMediaElement::createRenderer(RenderArena* arena, RenderStyle*)
{
return new (arena) RenderMedia(this);
}
void HTMLMediaElement::insertedIntoDocument()
{
HTMLElement::insertedIntoDocument();
if (!src().isEmpty())
scheduleLoad();
}
void HTMLMediaElement::removedFromDocument()
{
// FIXME: pause() may invoke load() which seem like a strange thing to do as a side effect
// of removing an element. This might need to be fixed in the spec.
ExceptionCode ec;
pause(ec);
HTMLElement::removedFromDocument();
}
void HTMLMediaElement::attach()
{
ASSERT(!attached());
HTMLElement::attach();
if (renderer())
renderer()->updateFromElement();
}
void HTMLMediaElement::recalcStyle(StyleChange change)
{
HTMLElement::recalcStyle(change);
if (renderer())
renderer()->updateFromElement();
}
void HTMLMediaElement::scheduleLoad()
{
m_loadTimer.startOneShot(0);
}
void HTMLMediaElement::initAndDispatchProgressEvent(const AtomicString& eventName)
{
bool totalKnown = m_player && m_player->totalBytesKnown();
unsigned loaded = m_player ? m_player->bytesLoaded() : 0;
unsigned total = m_player ? m_player->totalBytes() : 0;
dispatchProgressEvent(eventName, totalKnown, loaded, total);
if (renderer())
renderer()->updateFromElement();
}
void HTMLMediaElement::dispatchEventAsync(const AtomicString& eventName)
{
m_asyncEventsToDispatch.append(eventName);
if (!m_asyncEventTimer.isActive())
m_asyncEventTimer.startOneShot(0);
}
void HTMLMediaElement::loadTimerFired(Timer<HTMLMediaElement>*)
{
ExceptionCode ec;
load(ec);
}
void HTMLMediaElement::asyncEventTimerFired(Timer<HTMLMediaElement>*)
{
Vector<AtomicString> asyncEventsToDispatch;
m_asyncEventsToDispatch.swap(asyncEventsToDispatch);
unsigned count = asyncEventsToDispatch.size();
for (unsigned n = 0; n < count; ++n)
dispatchEventForType(asyncEventsToDispatch[n], false, true);
}
static String serializeTimeOffset(float time)
{
String timeString = String::number(time);
// FIXME serialize time offset values properly (format not specified yet)
timeString.append("s");
return timeString;
}
static float parseTimeOffset(const String& timeString, bool* ok = 0)
{
const UChar* characters = timeString.characters();
unsigned length = timeString.length();
if (length && characters[length - 1] == 's')
length--;
// FIXME parse time offset values (format not specified yet)
float val = charactersToFloat(characters, length, ok);
return val;
}
float HTMLMediaElement::getTimeOffsetAttribute(const QualifiedName& name, float valueOnError) const
{
bool ok;
String timeString = getAttribute(name);
float result = parseTimeOffset(timeString, &ok);
if (ok)
return result;
return valueOnError;
}
void HTMLMediaElement::setTimeOffsetAttribute(const QualifiedName& name, float value)
{
setAttribute(name, serializeTimeOffset(value));
}
PassRefPtr<MediaError> HTMLMediaElement::error() const
{
return m_error;
}
KURL HTMLMediaElement::src() const
{
return document()->completeURL(getAttribute(srcAttr));
}
void HTMLMediaElement::setSrc(const String& url)
{
setAttribute(srcAttr, url);
}
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();
}
void HTMLMediaElement::load(ExceptionCode& ec)
{
String mediaSrc;
// 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);
initAndDispatchProgressEvent(eventNames().abortEvent);
if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
goto end;
}
// 3
m_error = 0;
m_loadedFirstFrame = false;
m_autoplaying = true;
// 4
setPlaybackRate(defaultPlaybackRate(), ec);
// 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 = pickMedia();
if (mediaSrc.isEmpty()) {
ec = INVALID_STATE_ERR;
goto end;
}
// 7
m_networkState = LOADING;
// 8
m_currentSrc = mediaSrc;
// 9
m_begun = true;
dispatchProgressEvent(eventNames().loadstartEvent, false, 0, 0);
if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
goto end;
// 10, 11, 12, 13
m_player.clear();
m_player.set(new MediaPlayer(this));
updateVolume();
m_player->load(m_currentSrc);
if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
goto end;
if (renderer())
renderer()->updateFromElement();
// 14
m_previousProgressTime = WTF::currentTime();
m_previousProgress = 0;
if (m_begun)
// 350ms is not magic, it is in the spec!
m_progressEventTimer.startRepeating(0.350);
end:
ASSERT(m_loadNestingLevel);
m_loadNestingLevel--;
}
void HTMLMediaElement::mediaPlayerNetworkStateChanged(MediaPlayer*)
{
if (!m_begun || m_networkState == EMPTY)
return;
m_terminateLoadBelowNestingLevel = m_loadNestingLevel;
MediaPlayer::NetworkState state = m_player->networkState();
// 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;
}
if (state >= MediaPlayer::LoadedFirstFrame && m_networkState < LOADED_FIRST_FRAME) {
m_networkState = LOADED_FIRST_FRAME;
setReadyState(CAN_SHOW_CURRENT_FRAME);
if (isVideo())
static_cast<HTMLVideoElement*>(this)->updatePosterImage();
if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
return;
m_loadedFirstFrame = true;
if (renderer()) {
ASSERT(!renderer()->isImage());
static_cast<RenderVideo*>(renderer())->videoSizeChanged();
}
dispatchEventForType(eventNames().loadedfirstframeEvent, false, true);
if (m_loadNestingLevel < m_terminateLoadBelowNestingLevel)
return;
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*)
{
MediaPlayer::ReadyState state = m_player->readyState();
setReadyState((ReadyState)state);
}
void HTMLMediaElement::setReadyState(ReadyState state)
{
// 3.14.9.6. The ready states
if (m_readyState == state)
return;
bool wasActivelyPlaying = activelyPlaying();
m_readyState = state;
if (state >= CAN_PLAY)
m_seeking = false;
if (networkState() == EMPTY)
return;
if (state == DATA_UNAVAILABLE) {
dispatchEventForType(eventNames().dataunavailableEvent, false, true);
if (wasActivelyPlaying) {
dispatchEventForType(eventNames().timeupdateEvent, false, true);
dispatchEventForType(eventNames().waitingEvent, false, true);
}
} else if (state == CAN_SHOW_CURRENT_FRAME) {
if (m_loadedFirstFrame)
dispatchEventForType(eventNames().canshowcurrentframeEvent, false, true);
if (wasActivelyPlaying) {
dispatchEventForType(eventNames().timeupdateEvent, false, true);
dispatchEventForType(eventNames().waitingEvent, false, true);
}
} else if (state == CAN_PLAY) {
dispatchEventForType(eventNames().canplayEvent, false, true);
} else if (state == CAN_PLAY_THROUGH) {
dispatchEventForType(eventNames().canplaythroughEvent, false, true);
if (m_autoplaying && m_paused && autoplay()) {
m_paused = false;
dispatchEventForType(eventNames().playEvent, false, true);
}
}
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);
// 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);
m_player->seek(time);
}
}
HTMLMediaElement::ReadyState HTMLMediaElement::readyState() const
{
return m_readyState;
}
bool HTMLMediaElement::seeking() const
{
return m_seeking;
}
// playback state
float HTMLMediaElement::currentTime() const
{
if (!m_player)
return 0;
if (m_seeking)
return m_currentTimeDuringSeek;
return m_player->currentTime();
}
void HTMLMediaElement::setCurrentTime(float time, ExceptionCode& ec)
{
seek(time, ec);
}
float HTMLMediaElement::duration() const
{
return m_player ? m_player->duration() : 0;
}
bool HTMLMediaElement::paused() const
{
return m_paused;
}
float HTMLMediaElement::defaultPlaybackRate() const
{
return m_defaultPlaybackRate;
}
void HTMLMediaElement::setDefaultPlaybackRate(float rate, ExceptionCode& ec)
{
if (rate == 0.0f) {
ec = NOT_SUPPORTED_ERR;
return;
}
if (m_defaultPlaybackRate != rate) {
m_defaultPlaybackRate = rate;
dispatchEventAsync(eventNames().ratechangeEvent);
}
}
float HTMLMediaElement::playbackRate() const
{
return m_player ? m_player->rate() : 0;
}
void HTMLMediaElement::setPlaybackRate(float rate, ExceptionCode& ec)
{
if (rate == 0.0f) {
ec = NOT_SUPPORTED_ERR;
return;
}
if (m_player && m_player->rate() != rate) {
m_player->setRate(rate);
dispatchEventAsync(eventNames().ratechangeEvent);
}
}
bool HTMLMediaElement::ended() const
{
return endedPlayback();
}
bool HTMLMediaElement::autoplay() const
{
return hasAttribute(autoplayAttr);
}
void HTMLMediaElement::setAutoplay(bool b)
{
setBooleanAttribute(autoplayAttr, b);
}
void HTMLMediaElement::play(ExceptionCode& ec)
{
// 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);
}
setPlaybackRate(defaultPlaybackRate(), unused);
if (m_paused) {
m_paused = false;
dispatchEventAsync(eventNames().playEvent);
}
m_autoplaying = false;
updatePlayState();
}
void HTMLMediaElement::pause(ExceptionCode& ec)
{
// 3.14.9.7. Playing the media resource
if (!m_player || networkState() == EMPTY) {
ec = 0;
load(ec);
if (ec)
return;
}
if (!m_paused) {
m_paused = true;
dispatchEventAsync(eventNames().timeupdateEvent);
dispatchEventAsync(eventNames().pauseEvent);
}
m_autoplaying = false;
updatePlayState();
}
unsigned HTMLMediaElement::playCount() const
{
bool ok;
unsigned count = getAttribute(playcountAttr).string().toUInt(&ok);
return (count > 0 && ok) ? count : 1;
}
void HTMLMediaElement::setPlayCount(unsigned count, ExceptionCode& ec)
{
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;
}
bool HTMLMediaElement::controls() const
{
return hasAttribute(controlsAttr);
}
void HTMLMediaElement::setControls(bool b)
{
setBooleanAttribute(controlsAttr, b);
}
float HTMLMediaElement::volume() const
{
return m_volume;
}
void HTMLMediaElement::setVolume(float vol, ExceptionCode& ec)
{
if (vol < 0.0f || vol > 1.0f) {
ec = INDEX_SIZE_ERR;
return;
}
if (m_volume != vol) {
m_volume = vol;
updateVolume();
dispatchEventAsync(eventNames().volumechangeEvent);
}
}
bool HTMLMediaElement::muted() const
{
return m_muted;
}
void HTMLMediaElement::setMuted(bool muted)
{
if (m_muted != muted) {
m_muted = muted;
updateVolume();
dispatchEventAsync(eventNames().volumechangeEvent);
}
}
bool HTMLMediaElement::canPlay() const
{
return paused() || ended() || networkState() < LOADED_METADATA;
}
String HTMLMediaElement::pickMedia()
{
// 3.14.9.2. Location of the media resource
String mediaSrc = getAttribute(srcAttr);
if (mediaSrc.isEmpty()) {
for (Node* n = firstChild(); n; n = n->nextSibling()) {
if (n->hasTagName(sourceTag)) {
HTMLSourceElement* source = static_cast<HTMLSourceElement*>(n);
if (!source->hasAttribute(srcAttr))
continue;
if (source->hasAttribute(mediaAttr)) {
MediaQueryEvaluator screenEval("screen", document()->frame(), renderer() ? renderer()->style() : 0);
RefPtr<MediaList> media = MediaList::createAllowingDescriptionSyntax(source->media());
if (!screenEval.eval(media.get()))
continue;
}
if (source->hasAttribute(typeAttr)) {
String type = source->type().stripWhiteSpace();
// "type" can have parameters after a semi-colon, strip them before checking with the type registry
int semi = type.find(';');
if (semi != -1)
type = type.left(semi).stripWhiteSpace();
if (!MIMETypeRegistry::isSupportedMediaMIMEType(type))
continue;
}
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*)
{
if (readyState() >= CAN_PLAY)
m_seeking = false;
if (m_currentLoop < playCount() - 1 && currentTime() >= effectiveLoopEnd()) {
ExceptionCode ec;
seek(effectiveLoopStart(), ec);
m_currentLoop++;
dispatchEventForType(eventNames().timeupdateEvent, false, true);
}
if (m_currentLoop == playCount() - 1 && currentTime() >= effectiveEnd()) {
dispatchEventForType(eventNames().timeupdateEvent, false, true);
dispatchEventForType(eventNames().endedEvent, false, true);
}
updatePlayState();
}
void HTMLMediaElement::mediaPlayerRepaint(MediaPlayer*)
{
if (renderer())
renderer()->repaint();
}
PassRefPtr<TimeRanges> HTMLMediaElement::buffered() const
{
// FIXME real ranges support
if (!m_player || !m_player->maxTimeBuffered())
return TimeRanges::create();
return TimeRanges::create(0, m_player->maxTimeBuffered());
}
PassRefPtr<TimeRanges> HTMLMediaElement::played() const
{
// FIXME track played
return TimeRanges::create();
}
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;
}
void HTMLMediaElement::updateVolume()
{
if (!m_player)
return;
Page* page = document()->page();
float volumeMultiplier = page ? page->mediaVolume() : 1;
m_player->setVolume(m_muted ? 0 : m_volume * volumeMultiplier);
if (renderer())
renderer()->updateFromElement();
}
void HTMLMediaElement::updatePlayState()
{
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();
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)
{
m_pausedInternal = b;
updatePlayState();
}
void HTMLMediaElement::documentWillBecomeInactive()
{
// 3.14.9.4. Loading the media resource
// 14
if (m_begun) {
// For simplicity cancel the incomplete load by deleting the player
m_player.clear();
m_progressEventTimer.stop();
m_error = MediaError::create(MediaError::MEDIA_ERR_ABORTED);
m_begun = false;
initAndDispatchProgressEvent(eventNames().abortEvent);
if (m_networkState >= LOADING) {
m_networkState = EMPTY;
m_readyState = DATA_UNAVAILABLE;
dispatchEventForType(eventNames().emptiedEvent, false, true);
}
}
m_inActiveDocument = false;
// Stop the playback without generating events
setPausedInternal(true);
if (renderer())
renderer()->updateFromElement();
}
void HTMLMediaElement::documentDidBecomeActive()
{
m_inActiveDocument = true;
setPausedInternal(false);
if (m_error && m_error->code() == MediaError::MEDIA_ERR_ABORTED) {
// Restart the load if it was aborted in the middle by moving the document to the page cache.
// This behavior is not specified but it seems like a sensible thing to do.
ExceptionCode ec;
load(ec);
}
if (renderer())
renderer()->updateFromElement();
}
void HTMLMediaElement::mediaVolumeDidChange()
{
updateVolume();
}
void HTMLMediaElement::defaultEventHandler(Event* event)
{
if (renderer() && renderer()->isMedia())
static_cast<RenderMedia*>(renderer())->forwardEvent(event);
if (event->defaultHandled())
return;
HTMLElement::defaultEventHandler(event);
}
}
#endif