diff options
Diffstat (limited to 'src/3rdparty/webkit/WebCore/html/HTMLMediaElement.cpp')
-rw-r--r-- | src/3rdparty/webkit/WebCore/html/HTMLMediaElement.cpp | 1073 |
1 files changed, 1073 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/html/HTMLMediaElement.cpp b/src/3rdparty/webkit/WebCore/html/HTMLMediaElement.cpp new file mode 100644 index 0000000..df38f01 --- /dev/null +++ b/src/3rdparty/webkit/WebCore/html/HTMLMediaElement.cpp @@ -0,0 +1,1073 @@ +/* + * 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 "SystemTime.h" +#include "TimeRanges.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); +} + +String serializeTimeOffset(float time) +{ + String timeString = String::number(time); + // FIXME serialize time offset values properly (format not specified yet) + timeString.append("s"); + return timeString; +} + +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 = WebCore::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 = WebCore::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 |