| /* |
| * Copyright (C) 2014-2021 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 "MediaElementSession.h" |
| |
| #include "Chrome.h" |
| #include "ChromeClient.h" |
| #include "DocumentInlines.h" |
| #include "DocumentLoader.h" |
| #include "ElementInlines.h" |
| #include "Frame.h" |
| #include "FrameView.h" |
| #include "FullscreenManager.h" |
| #include "HTMLAudioElement.h" |
| #include "HTMLMediaElement.h" |
| #include "HTMLNames.h" |
| #include "HTMLVideoElement.h" |
| #include "HitTestResult.h" |
| #include "Logging.h" |
| #include "MediaUsageInfo.h" |
| #include "NowPlayingInfo.h" |
| #include "Page.h" |
| #include "PlatformMediaSessionManager.h" |
| #include "Quirks.h" |
| #include "RenderMedia.h" |
| #include "RenderView.h" |
| #include "ScriptController.h" |
| #include "Settings.h" |
| #include "SourceBuffer.h" |
| #include <wtf/text/StringBuilder.h> |
| |
| #if ENABLE(MEDIA_SESSION) |
| #include "MediaMetadata.h" |
| #include "MediaPositionState.h" |
| #include "MediaSession.h" |
| #include "MediaSessionPlaybackState.h" |
| #include "NavigatorMediaSession.h" |
| #endif |
| |
| #if PLATFORM(IOS_FAMILY) |
| #include "AudioSession.h" |
| #include "RuntimeApplicationChecks.h" |
| #include <wtf/cocoa/RuntimeApplicationChecksCocoa.h> |
| #endif |
| |
| namespace WebCore { |
| |
| static const Seconds clientDataBufferingTimerThrottleDelay { 100_ms }; |
| static const Seconds elementMainContentCheckInterval { 250_ms }; |
| |
| static bool isElementRectMostlyInMainFrame(const HTMLMediaElement&); |
| static bool isElementLargeEnoughForMainContent(const HTMLMediaElement&, MediaSessionMainContentPurpose); |
| static bool isElementMainContentForPurposesOfAutoplay(const HTMLMediaElement&, bool shouldHitTestMainFrame); |
| |
| #if !RELEASE_LOG_DISABLED |
| |
| static String restrictionNames(MediaElementSession::BehaviorRestrictions restriction) |
| { |
| StringBuilder restrictionBuilder; |
| #define CASE(restrictionType) \ |
| if (restriction & MediaElementSession::restrictionType) { \ |
| if (!restrictionBuilder.isEmpty()) \ |
| restrictionBuilder.append(", "); \ |
| restrictionBuilder.append(#restrictionType); \ |
| } \ |
| |
| CASE(NoRestrictions) |
| CASE(RequireUserGestureForLoad) |
| CASE(RequireUserGestureForVideoRateChange) |
| CASE(RequireUserGestureForAudioRateChange) |
| CASE(RequireUserGestureForFullscreen) |
| CASE(RequirePageConsentToLoadMedia) |
| CASE(RequirePageConsentToResumeMedia) |
| CASE(RequireUserGestureToShowPlaybackTargetPicker) |
| CASE(WirelessVideoPlaybackDisabled) |
| CASE(RequireUserGestureToAutoplayToExternalDevice) |
| CASE(AutoPreloadingNotPermitted) |
| CASE(InvisibleAutoplayNotPermitted) |
| CASE(OverrideUserGestureRequirementForMainContent) |
| CASE(RequireUserGestureToControlControlsManager) |
| CASE(RequirePlaybackToControlControlsManager) |
| CASE(RequireUserGestureForVideoDueToLowPowerMode) |
| |
| return restrictionBuilder.toString(); |
| } |
| |
| #endif |
| |
| static bool pageExplicitlyAllowsElementToAutoplayInline(const HTMLMediaElement& element) |
| { |
| Document& document = element.document(); |
| Page* page = document.page(); |
| return document.isMediaDocument() && !document.ownerElement() && page && page->allowsMediaDocumentInlinePlayback(); |
| } |
| |
| #if ENABLE(MEDIA_SESSION) |
| class MediaSessionObserver : public MediaSession::Observer { |
| WTF_MAKE_FAST_ALLOCATED; |
| |
| public: |
| MediaSessionObserver(MediaElementSession& session, const Ref<MediaSession>& mediaSession) |
| : m_session(session), m_mediaSession(mediaSession) |
| { |
| m_mediaSession->addObserver(*this); |
| } |
| ~MediaSessionObserver() |
| { |
| m_mediaSession->removeObserver(*this); |
| } |
| void metadataChanged(const RefPtr<MediaMetadata>& metadata) final |
| { |
| if (m_session) |
| m_session->metadataChanged(metadata); |
| } |
| void positionStateChanged(const std::optional<MediaPositionState>& state) final |
| { |
| if (m_session) |
| m_session->positionStateChanged(state); |
| } |
| void playbackStateChanged(MediaSessionPlaybackState state) final |
| { |
| if (m_session) |
| m_session->playbackStateChanged(state); |
| } |
| void actionHandlersChanged() |
| { |
| if (m_session) |
| m_session->actionHandlersChanged(); |
| } |
| private: |
| WeakPtr<MediaElementSession> m_session; |
| Ref<MediaSession> m_mediaSession; |
| }; |
| #endif |
| |
| MediaElementSession::MediaElementSession(HTMLMediaElement& element) |
| : PlatformMediaSession(PlatformMediaSessionManager::sharedManager(), element) |
| , m_element(element) |
| , m_restrictions(NoRestrictions) |
| #if ENABLE(WIRELESS_PLAYBACK_TARGET) |
| , m_targetAvailabilityChangedTimer(*this, &MediaElementSession::targetAvailabilityChangedTimerFired) |
| #endif |
| , m_mainContentCheckTimer(*this, &MediaElementSession::mainContentCheckTimerFired) |
| , m_clientDataBufferingTimer(*this, &MediaElementSession::clientDataBufferingTimerFired) |
| #if !RELEASE_LOG_DISABLED |
| , m_logIdentifier(element.logIdentifier()) |
| #endif |
| { |
| } |
| |
| MediaElementSession::~MediaElementSession() |
| { |
| #if ENABLE(MEDIA_USAGE) |
| auto page = m_element.document().page(); |
| if (page && m_haveAddedMediaUsageManagerSession) |
| page->chrome().client().removeMediaUsageManagerSession(mediaSessionIdentifier()); |
| #endif |
| } |
| |
| void MediaElementSession::addMediaUsageManagerSessionIfNecessary() |
| { |
| #if ENABLE(MEDIA_USAGE) |
| if (m_haveAddedMediaUsageManagerSession) |
| return; |
| |
| auto page = m_element.document().page(); |
| if (!page) |
| return; |
| |
| m_haveAddedMediaUsageManagerSession = true; |
| page->chrome().client().addMediaUsageManagerSession(mediaSessionIdentifier(), m_element.sourceApplicationIdentifier(), m_element.document().url()); |
| #endif |
| } |
| |
| void MediaElementSession::registerWithDocument(Document& document) |
| { |
| #if ENABLE(WIRELESS_PLAYBACK_TARGET) |
| document.addPlaybackTargetPickerClient(*this); |
| #else |
| UNUSED_PARAM(document); |
| #endif |
| ensureIsObservingMediaSession(); |
| } |
| |
| void MediaElementSession::unregisterWithDocument(Document& document) |
| { |
| #if ENABLE(WIRELESS_PLAYBACK_TARGET) |
| document.removePlaybackTargetPickerClient(*this); |
| #else |
| UNUSED_PARAM(document); |
| #endif |
| #if ENABLE(MEDIA_SESSION) |
| m_observer = nullptr; |
| #endif |
| } |
| |
| void MediaElementSession::clientWillBeginAutoplaying() |
| { |
| PlatformMediaSession::clientWillBeginAutoplaying(); |
| m_elementIsHiddenBecauseItWasRemovedFromDOM = false; |
| updateClientDataBuffering(); |
| } |
| |
| bool MediaElementSession::clientWillBeginPlayback() |
| { |
| if (!PlatformMediaSession::clientWillBeginPlayback()) |
| return false; |
| |
| m_elementIsHiddenBecauseItWasRemovedFromDOM = false; |
| updateClientDataBuffering(); |
| return true; |
| } |
| |
| bool MediaElementSession::clientWillPausePlayback() |
| { |
| if (!PlatformMediaSession::clientWillPausePlayback()) |
| return false; |
| |
| updateClientDataBuffering(); |
| return true; |
| } |
| |
| void MediaElementSession::visibilityChanged() |
| { |
| scheduleClientDataBufferingCheck(); |
| |
| bool elementIsHidden = m_element.elementIsHidden(); |
| |
| if (elementIsHidden && !m_element.isFullscreen()) |
| m_elementIsHiddenUntilVisibleInViewport = true; |
| else if (m_element.isVisibleInViewport()) |
| m_elementIsHiddenUntilVisibleInViewport = false; |
| |
| bool isPlayingAudio = m_element.isPlaying() && m_element.hasAudio() && !m_element.muted() && m_element.volume(); |
| if (!isPlayingAudio) { |
| if (elementIsHidden) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Suspending silent playback after page visibility: hidden"); |
| beginInterruption(PlatformMediaSession::EnteringBackground); |
| } else { |
| ALWAYS_LOG(LOGIDENTIFIER, "Resuming silent playback after page visibility: showing"); |
| endInterruption(PlatformMediaSession::MayResumePlaying); |
| } |
| return; |
| } |
| |
| if (hasBehaviorRestriction(RequirePageVisibilityToPlayAudio)) { |
| if (elementIsHidden) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Suspending audible playback after page visibility: hidden"); |
| beginInterruption(PlatformMediaSession::EnteringBackground); |
| } else { |
| ALWAYS_LOG(LOGIDENTIFIER, "Resuming audible playback after page visibility: showing"); |
| endInterruption(PlatformMediaSession::MayResumePlaying); |
| } |
| } |
| } |
| |
| void MediaElementSession::isVisibleInViewportChanged() |
| { |
| scheduleClientDataBufferingCheck(); |
| |
| if (m_element.isFullscreen() || m_element.isVisibleInViewport()) |
| m_elementIsHiddenUntilVisibleInViewport = false; |
| } |
| |
| void MediaElementSession::inActiveDocumentChanged() |
| { |
| m_elementIsHiddenBecauseItWasRemovedFromDOM = !m_element.inActiveDocument(); |
| scheduleClientDataBufferingCheck(); |
| } |
| |
| void MediaElementSession::scheduleClientDataBufferingCheck() |
| { |
| if (!m_clientDataBufferingTimer.isActive()) |
| m_clientDataBufferingTimer.startOneShot(clientDataBufferingTimerThrottleDelay); |
| } |
| |
| void MediaElementSession::clientDataBufferingTimerFired() |
| { |
| INFO_LOG(LOGIDENTIFIER, "visible = ", m_element.elementIsHidden()); |
| |
| updateClientDataBuffering(); |
| |
| #if PLATFORM(IOS_FAMILY) |
| PlatformMediaSessionManager::sharedManager().configureWireLessTargetMonitoring(); |
| #endif |
| |
| if (state() != Playing || !m_element.elementIsHidden()) |
| return; |
| |
| PlatformMediaSessionManager::SessionRestrictions restrictions = PlatformMediaSessionManager::sharedManager().restrictions(mediaType()); |
| if ((restrictions & PlatformMediaSessionManager::BackgroundTabPlaybackRestricted) == PlatformMediaSessionManager::BackgroundTabPlaybackRestricted) |
| pauseSession(); |
| } |
| |
| void MediaElementSession::updateClientDataBuffering() |
| { |
| if (m_clientDataBufferingTimer.isActive()) |
| m_clientDataBufferingTimer.stop(); |
| |
| m_element.setBufferingPolicy(preferredBufferingPolicy()); |
| } |
| |
| void MediaElementSession::addBehaviorRestriction(BehaviorRestrictions restrictions) |
| { |
| if (restrictions & ~m_restrictions) |
| INFO_LOG(LOGIDENTIFIER, "adding ", restrictionNames(restrictions & ~m_restrictions)); |
| |
| m_restrictions |= restrictions; |
| |
| if (restrictions & OverrideUserGestureRequirementForMainContent) |
| m_mainContentCheckTimer.startRepeating(elementMainContentCheckInterval); |
| } |
| |
| void MediaElementSession::removeBehaviorRestriction(BehaviorRestrictions restriction) |
| { |
| if (restriction & RequireUserGestureToControlControlsManager) { |
| m_mostRecentUserInteractionTime = MonotonicTime::now(); |
| if (auto page = m_element.document().page()) |
| page->setAllowsPlaybackControlsForAutoplayingAudio(true); |
| } |
| |
| if (!(m_restrictions & restriction)) |
| return; |
| |
| INFO_LOG(LOGIDENTIFIER, "removed ", restrictionNames(m_restrictions & restriction)); |
| m_restrictions &= ~restriction; |
| } |
| |
| Expected<void, MediaPlaybackDenialReason> MediaElementSession::playbackStateChangePermitted(MediaPlaybackState state) const |
| { |
| INFO_LOG(LOGIDENTIFIER, "state = ", state); |
| if (m_element.isSuspended()) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because element is suspended"); |
| return makeUnexpected(MediaPlaybackDenialReason::InvalidState); |
| } |
| |
| auto& document = m_element.document(); |
| auto* page = document.page(); |
| if (!page || page->mediaPlaybackIsSuspended()) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because media playback is suspended"); |
| return makeUnexpected(MediaPlaybackDenialReason::PageConsentRequired); |
| } |
| |
| if (document.isMediaDocument() && !document.ownerElement()) |
| return { }; |
| |
| if (pageExplicitlyAllowsElementToAutoplayInline(m_element)) |
| return { }; |
| |
| if (requiresFullscreenForVideoPlayback() && !fullscreenPermitted()) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because of fullscreen restriction"); |
| return makeUnexpected(MediaPlaybackDenialReason::FullscreenRequired); |
| } |
| |
| if (m_restrictions & OverrideUserGestureRequirementForMainContent && updateIsMainContent()) |
| return { }; |
| |
| #if ENABLE(MEDIA_STREAM) |
| if (m_element.hasMediaStreamSrcObject()) { |
| if (document.isCapturing()) |
| return { }; |
| if (document.mediaState() & MediaProducerMediaState::IsPlayingAudio) |
| return { }; |
| } |
| #endif |
| |
| // FIXME: Why are we checking top-level document only for PerDocumentAutoplayBehavior? |
| const auto& topDocument = document.topDocument(); |
| if (topDocument.quirks().requiresUserGestureToPauseInPictureInPicture() |
| && m_element.fullscreenMode() & HTMLMediaElementEnums::VideoFullscreenModePictureInPicture |
| && !m_element.paused() && state == MediaPlaybackState::Paused |
| && !document.processingUserGestureForMedia()) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because a quirk requires a user gesture to pause while in Picture-in-Picture"); |
| return makeUnexpected(MediaPlaybackDenialReason::UserGestureRequired); |
| } |
| |
| if (topDocument.mediaState() & MediaProducerMediaState::HasUserInteractedWithMediaElement && topDocument.quirks().needsPerDocumentAutoplayBehavior()) |
| return { }; |
| |
| if (topDocument.hasHadUserInteraction() && document.quirks().shouldAutoplayForArbitraryUserGesture()) |
| return { }; |
| |
| if (m_restrictions & RequireUserGestureForVideoRateChange && m_element.isVideo() && !document.processingUserGestureForMedia()) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because a user gesture is required for video rate change restriction"); |
| return makeUnexpected(MediaPlaybackDenialReason::UserGestureRequired); |
| } |
| |
| if (m_restrictions & RequireUserGestureForAudioRateChange && (!m_element.isVideo() || m_element.hasAudio()) && !m_element.muted() && m_element.volume() && !document.processingUserGestureForMedia()) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because a user gesture is required for audio rate change restriction"); |
| return makeUnexpected(MediaPlaybackDenialReason::UserGestureRequired); |
| } |
| |
| if (m_restrictions & RequirePageVisibilityToPlayAudio && (!m_element.isVideo() || m_element.hasAudio()) && !m_element.muted() && m_element.volume() && m_element.elementIsHidden()) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because page visibility required for audio rate change restriction"); |
| return makeUnexpected(MediaPlaybackDenialReason::UserGestureRequired); |
| } |
| |
| if (m_restrictions & RequireUserGestureForVideoDueToLowPowerMode && m_element.isVideo() && !document.processingUserGestureForMedia()) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because of video low power mode restriction"); |
| return makeUnexpected(MediaPlaybackDenialReason::UserGestureRequired); |
| } |
| |
| return { }; |
| } |
| |
| bool MediaElementSession::autoplayPermitted() const |
| { |
| const Document& document = m_element.document(); |
| if (document.backForwardCacheState() != Document::NotInBackForwardCache) |
| return false; |
| if (document.activeDOMObjectsAreSuspended()) |
| return false; |
| |
| if (!hasBehaviorRestriction(MediaElementSession::InvisibleAutoplayNotPermitted)) |
| return true; |
| |
| // If the media element is audible, allow autoplay even when not visible as pausing it would be observable by the user. |
| if ((!m_element.isVideo() || m_element.hasAudio()) && !m_element.muted() && m_element.volume()) |
| return true; |
| |
| auto* renderer = m_element.renderer(); |
| if (!renderer) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because element has no renderer"); |
| return false; |
| } |
| if (renderer->style().visibility() != Visibility::Visible) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because element is not visible"); |
| return false; |
| } |
| if (renderer->view().frameView().isOffscreen()) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because frame is offscreen"); |
| return false; |
| } |
| if (renderer->visibleInViewportState() != VisibleInViewportState::Yes) { |
| ALWAYS_LOG(LOGIDENTIFIER, "Returning FALSE because element is not visible in the viewport"); |
| return false; |
| } |
| return true; |
| } |
| |
| bool MediaElementSession::dataLoadingPermitted() const |
| { |
| if (m_restrictions & OverrideUserGestureRequirementForMainContent && updateIsMainContent()) |
| return true; |
| |
| if (m_restrictions & RequireUserGestureForLoad && !m_element.document().processingUserGestureForMedia()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE"); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| MediaPlayer::BufferingPolicy MediaElementSession::preferredBufferingPolicy() const |
| { |
| if (isSuspended()) |
| return MediaPlayer::BufferingPolicy::MakeResourcesPurgeable; |
| |
| if (bufferingSuspended()) |
| return MediaPlayer::BufferingPolicy::LimitReadAhead; |
| |
| if (state() == PlatformMediaSession::Playing) |
| return MediaPlayer::BufferingPolicy::Default; |
| |
| if (shouldOverrideBackgroundLoadingRestriction()) |
| return MediaPlayer::BufferingPolicy::Default; |
| |
| #if ENABLE(WIRELESS_PLAYBACK_TARGET) |
| if (m_shouldPlayToPlaybackTarget) |
| return MediaPlayer::BufferingPolicy::Default; |
| #endif |
| |
| if (m_elementIsHiddenUntilVisibleInViewport || m_elementIsHiddenBecauseItWasRemovedFromDOM || m_element.elementIsHidden()) |
| return MediaPlayer::BufferingPolicy::MakeResourcesPurgeable; |
| |
| return MediaPlayer::BufferingPolicy::Default; |
| } |
| |
| bool MediaElementSession::fullscreenPermitted() const |
| { |
| if (m_restrictions & RequireUserGestureForFullscreen && !m_element.document().processingUserGestureForMedia()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE"); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool MediaElementSession::pageAllowsDataLoading() const |
| { |
| Page* page = m_element.document().page(); |
| if (m_restrictions & RequirePageConsentToLoadMedia && page && !page->canStartMedia()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE"); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool MediaElementSession::pageAllowsPlaybackAfterResuming() const |
| { |
| Page* page = m_element.document().page(); |
| if (m_restrictions & RequirePageConsentToResumeMedia && page && !page->canStartMedia()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE"); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| bool MediaElementSession::canShowControlsManager(PlaybackControlsPurpose purpose) const |
| { |
| if (m_element.isSuspended() || !m_element.inActiveDocument()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: isSuspended()"); |
| return false; |
| } |
| |
| if (m_element.isFullscreen()) { |
| INFO_LOG(LOGIDENTIFIER, "returning TRUE: is fullscreen"); |
| return true; |
| } |
| |
| if (m_element.muted()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: muted"); |
| return false; |
| } |
| |
| if (m_element.document().isMediaDocument() && (m_element.document().frame() && m_element.document().frame()->isMainFrame())) { |
| INFO_LOG(LOGIDENTIFIER, "returning TRUE: is media document"); |
| return true; |
| } |
| |
| if (client().presentationType() == MediaType::Audio && (purpose == PlaybackControlsPurpose::ControlsManager || purpose == PlaybackControlsPurpose::MediaSession)) { |
| if (!hasBehaviorRestriction(RequireUserGestureToControlControlsManager) || m_element.document().processingUserGestureForMedia()) { |
| INFO_LOG(LOGIDENTIFIER, "returning TRUE: audio element with user gesture"); |
| return true; |
| } |
| |
| if (m_element.isPlaying() && allowsPlaybackControlsForAutoplayingAudio()) { |
| INFO_LOG(LOGIDENTIFIER, "returning TRUE: user has played media before"); |
| return true; |
| } |
| |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: audio element is not suitable"); |
| return false; |
| } |
| |
| if (purpose == PlaybackControlsPurpose::ControlsManager && !isElementRectMostlyInMainFrame(m_element)) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: not in main frame"); |
| return false; |
| } |
| |
| if (!m_element.hasAudio() && !m_element.hasEverHadAudio()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: no audio"); |
| return false; |
| } |
| |
| if (!playbackStateChangePermitted(MediaPlaybackState::Playing)) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: playback not permitted"); |
| return false; |
| } |
| |
| if (!hasBehaviorRestriction(RequireUserGestureToControlControlsManager) || m_element.document().processingUserGestureForMedia()) { |
| INFO_LOG(LOGIDENTIFIER, "returning TRUE: no user gesture required"); |
| return true; |
| } |
| |
| if (purpose == PlaybackControlsPurpose::ControlsManager && hasBehaviorRestriction(RequirePlaybackToControlControlsManager) && !m_element.isPlaying()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: needs to be playing"); |
| return false; |
| } |
| |
| if (purpose != PlaybackControlsPurpose::MediaSession && !m_element.hasEverNotifiedAboutPlaying()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: hasn't fired playing notification"); |
| return false; |
| } |
| |
| #if ENABLE(FULLSCREEN_API) |
| // Elements which are not descendants of the current fullscreen element cannot be main content. |
| auto* fullscreenElement = m_element.document().fullscreenManager().currentFullscreenElement(); |
| if (fullscreenElement && !m_element.isDescendantOf(*fullscreenElement)) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: outside of full screen"); |
| return false; |
| } |
| #endif |
| |
| // Only allow the main content heuristic to forbid videos from showing up if our purpose is the controls manager. |
| if (purpose == PlaybackControlsPurpose::ControlsManager && m_element.isVideo()) { |
| if (!m_element.renderer()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: no renderer"); |
| return false; |
| } |
| |
| if (!m_element.hasVideo() && !m_element.hasEverHadVideo()) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: no video"); |
| return false; |
| } |
| |
| if (isLargeEnoughForMainContent(MediaSessionMainContentPurpose::MediaControls)) { |
| INFO_LOG(LOGIDENTIFIER, "returning TRUE: is main content"); |
| return true; |
| } |
| } |
| |
| if (purpose == PlaybackControlsPurpose::NowPlaying || purpose == PlaybackControlsPurpose::MediaSession) { |
| INFO_LOG(LOGIDENTIFIER, "returning TRUE: potentially plays audio"); |
| return true; |
| } |
| |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE: no user gesture"); |
| return false; |
| } |
| |
| bool MediaElementSession::isLargeEnoughForMainContent(MediaSessionMainContentPurpose purpose) const |
| { |
| return isElementLargeEnoughForMainContent(m_element, purpose); |
| } |
| |
| bool MediaElementSession::isMainContentForPurposesOfAutoplayEvents() const |
| { |
| return isElementMainContentForPurposesOfAutoplay(m_element, false); |
| } |
| |
| MonotonicTime MediaElementSession::mostRecentUserInteractionTime() const |
| { |
| return m_mostRecentUserInteractionTime; |
| } |
| |
| bool MediaElementSession::wantsToObserveViewportVisibilityForMediaControls() const |
| { |
| return isLargeEnoughForMainContent(MediaSessionMainContentPurpose::MediaControls); |
| } |
| |
| bool MediaElementSession::wantsToObserveViewportVisibilityForAutoplay() const |
| { |
| return m_element.isVideo(); |
| } |
| |
| #if ENABLE(WIRELESS_PLAYBACK_TARGET) |
| void MediaElementSession::showPlaybackTargetPicker() |
| { |
| INFO_LOG(LOGIDENTIFIER); |
| |
| auto& document = m_element.document(); |
| if (m_restrictions & RequireUserGestureToShowPlaybackTargetPicker && !document.processingUserGestureForMedia()) { |
| INFO_LOG(LOGIDENTIFIER, "returning early because of permissions"); |
| return; |
| } |
| |
| if (!document.page()) { |
| INFO_LOG(LOGIDENTIFIER, "returning early because page is NULL"); |
| return; |
| } |
| |
| #if !PLATFORM(IOS_FAMILY) |
| if (m_element.readyState() < HTMLMediaElementEnums::HAVE_METADATA) { |
| INFO_LOG(LOGIDENTIFIER, "returning early because element is not playable"); |
| return; |
| } |
| #endif |
| |
| auto& audioSession = AudioSession::sharedSession(); |
| document.showPlaybackTargetPicker(*this, is<HTMLVideoElement>(m_element), audioSession.routeSharingPolicy(), audioSession.routingContextUID()); |
| } |
| |
| bool MediaElementSession::hasWirelessPlaybackTargets() const |
| { |
| INFO_LOG(LOGIDENTIFIER, "returning ", m_hasPlaybackTargets); |
| |
| return m_hasPlaybackTargets; |
| } |
| |
| bool MediaElementSession::wirelessVideoPlaybackDisabled() const |
| { |
| if (!m_element.document().settings().allowsAirPlayForMediaPlayback()) { |
| INFO_LOG(LOGIDENTIFIER, "returning TRUE because of settings"); |
| return true; |
| } |
| |
| if (m_element.hasAttributeWithoutSynchronization(HTMLNames::webkitwirelessvideoplaybackdisabledAttr)) { |
| INFO_LOG(LOGIDENTIFIER, "returning TRUE because of attribute"); |
| return true; |
| } |
| |
| #if PLATFORM(IOS_FAMILY) |
| auto& legacyAirplayAttributeValue = m_element.attributeWithoutSynchronization(HTMLNames::webkitairplayAttr); |
| if (equalLettersIgnoringASCIICase(legacyAirplayAttributeValue, "deny")) { |
| INFO_LOG(LOGIDENTIFIER, "returning TRUE because of legacy attribute"); |
| return true; |
| } |
| if (equalLettersIgnoringASCIICase(legacyAirplayAttributeValue, "allow")) { |
| INFO_LOG(LOGIDENTIFIER, "returning FALSE because of legacy attribute"); |
| return false; |
| } |
| #endif |
| |
| if (m_element.document().settings().remotePlaybackEnabled() && m_element.hasAttributeWithoutSynchronization(HTMLNames::disableremoteplaybackAttr)) { |
| LOG(Media, "MediaElementSession::wirelessVideoPlaybackDisabled - returning TRUE because of RemotePlayback attribute"); |
| return true; |
| } |
| |
| auto player = m_element.player(); |
| if (!player) |
| return true; |
| |
| bool disabled = player->wirelessVideoPlaybackDisabled(); |
| INFO_LOG(LOGIDENTIFIER, "returning ", disabled, " because media engine says so"); |
| |
| return disabled; |
| } |
| |
| void MediaElementSession::setWirelessVideoPlaybackDisabled(bool disabled) |
| { |
| if (disabled) |
| addBehaviorRestriction(WirelessVideoPlaybackDisabled); |
| else |
| removeBehaviorRestriction(WirelessVideoPlaybackDisabled); |
| |
| auto player = m_element.player(); |
| if (!player) |
| return; |
| |
| INFO_LOG(LOGIDENTIFIER, disabled); |
| player->setWirelessVideoPlaybackDisabled(disabled); |
| } |
| |
| void MediaElementSession::setHasPlaybackTargetAvailabilityListeners(bool hasListeners) |
| { |
| INFO_LOG(LOGIDENTIFIER, hasListeners); |
| |
| #if PLATFORM(IOS_FAMILY) |
| m_hasPlaybackTargetAvailabilityListeners = hasListeners; |
| PlatformMediaSessionManager::sharedManager().configureWireLessTargetMonitoring(); |
| #else |
| UNUSED_PARAM(hasListeners); |
| m_element.document().playbackTargetPickerClientStateDidChange(*this, m_element.mediaState()); |
| #endif |
| } |
| |
| void MediaElementSession::setPlaybackTarget(Ref<MediaPlaybackTarget>&& device) |
| { |
| m_playbackTarget = WTFMove(device); |
| client().setWirelessPlaybackTarget(*m_playbackTarget.copyRef()); |
| } |
| |
| void MediaElementSession::targetAvailabilityChangedTimerFired() |
| { |
| client().wirelessRoutesAvailableDidChange(); |
| } |
| |
| void MediaElementSession::externalOutputDeviceAvailableDidChange(bool hasTargets) |
| { |
| if (m_hasPlaybackTargets == hasTargets) |
| return; |
| |
| INFO_LOG(LOGIDENTIFIER, hasTargets); |
| |
| m_hasPlaybackTargets = hasTargets; |
| m_targetAvailabilityChangedTimer.startOneShot(0_s); |
| } |
| |
| bool MediaElementSession::isPlayingToWirelessPlaybackTarget() const |
| { |
| #if !PLATFORM(IOS_FAMILY) |
| if (!m_playbackTarget || !m_playbackTarget->hasActiveRoute()) |
| return false; |
| #endif |
| |
| return client().isPlayingToWirelessPlaybackTarget(); |
| } |
| |
| void MediaElementSession::setShouldPlayToPlaybackTarget(bool shouldPlay) |
| { |
| INFO_LOG(LOGIDENTIFIER, shouldPlay); |
| m_shouldPlayToPlaybackTarget = shouldPlay; |
| updateClientDataBuffering(); |
| client().setShouldPlayToPlaybackTarget(shouldPlay); |
| } |
| |
| void MediaElementSession::playbackTargetPickerWasDismissed() |
| { |
| INFO_LOG(LOGIDENTIFIER); |
| client().playbackTargetPickerWasDismissed(); |
| } |
| |
| void MediaElementSession::mediaStateDidChange(MediaProducerMediaStateFlags state) |
| { |
| m_element.document().playbackTargetPickerClientStateDidChange(*this, state); |
| } |
| #endif |
| |
| MediaPlayer::Preload MediaElementSession::effectivePreloadForElement() const |
| { |
| MediaPlayer::Preload preload = m_element.preloadValue(); |
| |
| if (pageExplicitlyAllowsElementToAutoplayInline(m_element)) |
| return preload; |
| |
| if (m_restrictions & AutoPreloadingNotPermitted) { |
| if (preload > MediaPlayer::Preload::MetaData) |
| return MediaPlayer::Preload::MetaData; |
| } |
| |
| return preload; |
| } |
| |
| bool MediaElementSession::requiresFullscreenForVideoPlayback() const |
| { |
| if (pageExplicitlyAllowsElementToAutoplayInline(m_element)) |
| return false; |
| |
| if (is<HTMLAudioElement>(m_element)) |
| return false; |
| |
| if (m_element.document().isMediaDocument()) { |
| ASSERT(is<HTMLVideoElement>(m_element)); |
| const HTMLVideoElement& videoElement = *downcast<const HTMLVideoElement>(&m_element); |
| if (m_element.readyState() < HTMLVideoElement::HAVE_METADATA || !videoElement.hasEverHadVideo()) |
| return false; |
| } |
| |
| if (m_element.isTemporarilyAllowingInlinePlaybackAfterFullscreen()) |
| return false; |
| |
| if (!m_element.document().settings().allowsInlineMediaPlayback()) |
| return true; |
| |
| if (!m_element.document().settings().inlineMediaPlaybackRequiresPlaysInlineAttribute()) |
| return false; |
| |
| #if PLATFORM(IOS_FAMILY) |
| if (CocoaApplication::isIBooks()) |
| return !m_element.hasAttributeWithoutSynchronization(HTMLNames::webkit_playsinlineAttr) && !m_element.hasAttributeWithoutSynchronization(HTMLNames::playsinlineAttr); |
| if (applicationSDKVersion() < DYLD_IOS_VERSION_10_0) |
| return !m_element.hasAttributeWithoutSynchronization(HTMLNames::webkit_playsinlineAttr); |
| #endif |
| |
| if (m_element.document().isMediaDocument() && m_element.document().ownerElement()) |
| return false; |
| |
| return !m_element.hasAttributeWithoutSynchronization(HTMLNames::playsinlineAttr); |
| } |
| |
| bool MediaElementSession::allowsAutomaticMediaDataLoading() const |
| { |
| if (pageExplicitlyAllowsElementToAutoplayInline(m_element)) |
| return true; |
| |
| if (m_element.document().settings().mediaDataLoadsAutomatically()) |
| return true; |
| |
| return false; |
| } |
| |
| void MediaElementSession::mediaEngineUpdated() |
| { |
| INFO_LOG(LOGIDENTIFIER); |
| |
| #if ENABLE(WIRELESS_PLAYBACK_TARGET) |
| if (m_restrictions & WirelessVideoPlaybackDisabled) |
| setWirelessVideoPlaybackDisabled(true); |
| if (m_playbackTarget) |
| client().setWirelessPlaybackTarget(*m_playbackTarget.copyRef()); |
| if (m_shouldPlayToPlaybackTarget) |
| client().setShouldPlayToPlaybackTarget(true); |
| #endif |
| |
| } |
| |
| void MediaElementSession::resetPlaybackSessionState() |
| { |
| m_mostRecentUserInteractionTime = MonotonicTime(); |
| addBehaviorRestriction(RequireUserGestureToControlControlsManager | RequirePlaybackToControlControlsManager); |
| } |
| |
| void MediaElementSession::suspendBuffering() |
| { |
| updateClientDataBuffering(); |
| } |
| |
| void MediaElementSession::resumeBuffering() |
| { |
| updateClientDataBuffering(); |
| } |
| |
| bool MediaElementSession::bufferingSuspended() const |
| { |
| if (auto* page = m_element.document().page()) |
| return page->mediaBufferingIsSuspended(); |
| return true; |
| } |
| |
| bool MediaElementSession::allowsPictureInPicture() const |
| { |
| return m_element.document().settings().allowsPictureInPictureMediaPlayback(); |
| } |
| |
| #if PLATFORM(IOS_FAMILY) |
| bool MediaElementSession::requiresPlaybackTargetRouteMonitoring() const |
| { |
| return m_hasPlaybackTargetAvailabilityListeners && !m_element.elementIsHidden(); |
| } |
| #endif |
| |
| #if ENABLE(MEDIA_SOURCE) |
| size_t MediaElementSession::maximumMediaSourceBufferSize(const SourceBuffer& buffer) const |
| { |
| // A good quality 1080p video uses 8,000 kbps and stereo audio uses 384 kbps, so assume 95% for video and 5% for audio. |
| const float bufferBudgetPercentageForVideo = .95; |
| const float bufferBudgetPercentageForAudio = .05; |
| |
| size_t maximum = buffer.document().settings().maximumSourceBufferSize(); |
| |
| // Allow a SourceBuffer to buffer as though it is audio-only even if it doesn't have any active tracks (yet). |
| size_t bufferSize = static_cast<size_t>(maximum * bufferBudgetPercentageForAudio); |
| if (buffer.hasVideo()) |
| bufferSize += static_cast<size_t>(maximum * bufferBudgetPercentageForVideo); |
| |
| // FIXME: we might want to modify this algorithm to: |
| // - decrease the maximum size for background tabs |
| // - decrease the maximum size allowed for inactive elements when a process has more than one |
| // element, eg. so a page with many elements which are played one at a time doesn't keep |
| // everything buffered after an element has finished playing. |
| |
| return bufferSize; |
| } |
| #endif |
| |
| static bool isElementMainContentForPurposesOfAutoplay(const HTMLMediaElement& element, bool shouldHitTestMainFrame) |
| { |
| Document& document = element.document(); |
| if (!document.hasLivingRenderTree() || document.activeDOMObjectsAreStopped() || element.isSuspended() || !element.hasAudio() || !element.hasVideo()) |
| return false; |
| |
| // Elements which have not yet been laid out, or which are not yet in the DOM, cannot be main content. |
| auto* renderer = element.renderer(); |
| if (!renderer) |
| return false; |
| |
| if (!isElementLargeEnoughForMainContent(element, MediaSessionMainContentPurpose::Autoplay)) |
| return false; |
| |
| // Elements which are hidden by style, or have been scrolled out of view, cannot be main content. |
| // But elements which have audio & video and are already playing should not stop playing because |
| // they are scrolled off the page. |
| if (renderer->style().visibility() != Visibility::Visible) |
| return false; |
| if (renderer->visibleInViewportState() != VisibleInViewportState::Yes && !element.isPlaying()) |
| return false; |
| |
| // Main content elements must be in the main frame. |
| if (!document.frame() || !document.frame()->isMainFrame()) |
| return false; |
| |
| auto& mainFrame = document.frame()->mainFrame(); |
| if (!mainFrame.view() || !mainFrame.view()->renderView()) |
| return false; |
| |
| if (!shouldHitTestMainFrame) |
| return true; |
| |
| if (!mainFrame.document()) |
| return false; |
| |
| // Hit test the area of the main frame where the element appears, to determine if the element is being obscured. |
| // Elements which are obscured by other elements cannot be main content. |
| IntRect rectRelativeToView = element.boundingBoxInRootViewCoordinates(); |
| ScrollPosition scrollPosition = mainFrame.view()->documentScrollPositionRelativeToViewOrigin(); |
| IntRect rectRelativeToTopDocument(rectRelativeToView.location() + scrollPosition, rectRelativeToView.size()); |
| OptionSet<HitTestRequest::Type> hitType { HitTestRequest::Type::ReadOnly, HitTestRequest::Type::Active, HitTestRequest::Type::AllowChildFrameContent, HitTestRequest::Type::IgnoreClipping, HitTestRequest::Type::DisallowUserAgentShadowContent }; |
| HitTestResult result(rectRelativeToTopDocument.center()); |
| |
| mainFrame.document()->hitTest(hitType, result); |
| result.setToNonUserAgentShadowAncestor(); |
| RefPtr<Element> hitElement = result.targetElement(); |
| if (hitElement != &element) |
| return false; |
| |
| return true; |
| } |
| |
| static bool isElementRectMostlyInMainFrame(const HTMLMediaElement& element) |
| { |
| if (!element.renderer()) |
| return false; |
| |
| RefPtr documentFrame = element.document().frame(); |
| if (!documentFrame) |
| return false; |
| |
| auto mainFrameView = documentFrame->mainFrame().view(); |
| if (!mainFrameView) |
| return false; |
| |
| IntRect mainFrameRectAdjustedForScrollPosition = IntRect(-mainFrameView->documentScrollPositionRelativeToViewOrigin(), mainFrameView->contentsSize()); |
| IntRect elementRectInMainFrame = element.boundingBoxInRootViewCoordinates(); |
| auto totalElementArea = elementRectInMainFrame.area<RecordOverflow>(); |
| if (totalElementArea.hasOverflowed()) |
| return false; |
| |
| elementRectInMainFrame.intersect(mainFrameRectAdjustedForScrollPosition); |
| |
| return elementRectInMainFrame.area() > totalElementArea / 2; |
| } |
| |
| static bool isElementLargeRelativeToMainFrame(const HTMLMediaElement& element) |
| { |
| static const double minimumPercentageOfMainFrameAreaForMainContent = 0.9; |
| auto* renderer = element.renderer(); |
| if (!renderer) |
| return false; |
| |
| RefPtr documentFrame = element.document().frame(); |
| if (!documentFrame) |
| return false; |
| |
| if (!documentFrame->mainFrame().view()) |
| return false; |
| |
| auto& mainFrameView = *documentFrame->mainFrame().view(); |
| auto maxVisibleClientWidth = std::min(renderer->clientWidth().toInt(), mainFrameView.visibleWidth()); |
| auto maxVisibleClientHeight = std::min(renderer->clientHeight().toInt(), mainFrameView.visibleHeight()); |
| |
| return maxVisibleClientWidth * maxVisibleClientHeight > minimumPercentageOfMainFrameAreaForMainContent * mainFrameView.visibleWidth() * mainFrameView.visibleHeight(); |
| } |
| |
| static bool isElementLargeEnoughForMainContent(const HTMLMediaElement& element, MediaSessionMainContentPurpose purpose) |
| { |
| static const double elementMainContentAreaMinimum = 400 * 300; |
| static const double maximumAspectRatio = purpose == MediaSessionMainContentPurpose::MediaControls ? 3 : 1.8; |
| static const double minimumAspectRatio = .5; // Slightly smaller than 9:16. |
| |
| // Elements which have not yet been laid out, or which are not yet in the DOM, cannot be main content. |
| auto* renderer = element.renderer(); |
| if (!renderer) |
| return false; |
| |
| double width = renderer->clientWidth(); |
| double height = renderer->clientHeight(); |
| double area = width * height; |
| double aspectRatio = width / height; |
| |
| if (area < elementMainContentAreaMinimum) |
| return false; |
| |
| if (aspectRatio >= minimumAspectRatio && aspectRatio <= maximumAspectRatio) |
| return true; |
| |
| return isElementLargeRelativeToMainFrame(element); |
| } |
| |
| void MediaElementSession::mainContentCheckTimerFired() |
| { |
| if (!hasBehaviorRestriction(OverrideUserGestureRequirementForMainContent)) |
| return; |
| |
| updateIsMainContent(); |
| } |
| |
| bool MediaElementSession::updateIsMainContent() const |
| { |
| if (m_element.isSuspended()) |
| return false; |
| |
| bool wasMainContent = m_isMainContent; |
| m_isMainContent = isElementMainContentForPurposesOfAutoplay(m_element, true); |
| |
| if (m_isMainContent != wasMainContent) |
| m_element.updateShouldPlay(); |
| |
| return m_isMainContent; |
| } |
| |
| bool MediaElementSession::allowsPlaybackControlsForAutoplayingAudio() const |
| { |
| auto page = m_element.document().page(); |
| return page && page->allowsPlaybackControlsForAutoplayingAudio(); |
| } |
| |
| #if ENABLE(MEDIA_SESSION) |
| void MediaElementSession::didReceiveRemoteControlCommand(RemoteControlCommandType commandType, const RemoteCommandArgument& argument) |
| { |
| auto* session = mediaSession(); |
| if (!session || !session->hasActiveActionHandlers()) { |
| PlatformMediaSession::didReceiveRemoteControlCommand(commandType, argument); |
| return; |
| } |
| |
| MediaSessionActionDetails actionDetails; |
| switch (commandType) { |
| case NoCommand: |
| return; |
| case PlayCommand: |
| actionDetails.action = MediaSessionAction::Play; |
| break; |
| case PauseCommand: |
| actionDetails.action = MediaSessionAction::Pause; |
| break; |
| case StopCommand: |
| actionDetails.action = MediaSessionAction::Stop; |
| break; |
| case TogglePlayPauseCommand: |
| actionDetails.action = m_element.paused() ? MediaSessionAction::Play : MediaSessionAction::Pause; |
| break; |
| case BeginScrubbingCommand: |
| m_isScrubbing = true; |
| return; |
| case EndScrubbingCommand: |
| m_isScrubbing = false; |
| return; |
| case SeekToPlaybackPositionCommand: |
| ASSERT(argument.time); |
| if (!argument.time) |
| return; |
| actionDetails.action = MediaSessionAction::Seekto; |
| actionDetails.seekTime = argument.time.value(); |
| actionDetails.fastSeek = m_isScrubbing; |
| break; |
| case SkipForwardCommand: |
| if (argument.time) |
| actionDetails.seekOffset = argument.time.value(); |
| actionDetails.action = MediaSessionAction::Seekforward; |
| break; |
| case SkipBackwardCommand: |
| if (argument.time) |
| actionDetails.seekOffset = argument.time.value(); |
| actionDetails.action = MediaSessionAction::Seekbackward; |
| break; |
| case NextTrackCommand: |
| actionDetails.action = MediaSessionAction::Nexttrack; |
| break; |
| case PreviousTrackCommand: |
| actionDetails.action = MediaSessionAction::Previoustrack; |
| break; |
| case BeginSeekingBackwardCommand: |
| case EndSeekingBackwardCommand: |
| case BeginSeekingForwardCommand: |
| case EndSeekingForwardCommand: |
| ASSERT_NOT_REACHED(); |
| return; |
| } |
| |
| session->callActionHandler(actionDetails); |
| } |
| #endif |
| |
| std::optional<NowPlayingInfo> MediaElementSession::nowPlayingInfo() const |
| { |
| auto* page = m_element.document().page(); |
| bool allowsNowPlayingControlsVisibility = page && !page->isVisibleAndActive(); |
| bool isPlaying = state() == PlatformMediaSession::Playing; |
| bool supportsSeeking = m_element.supportsSeeking(); |
| double duration = supportsSeeking ? m_element.duration() : MediaPlayer::invalidTime(); |
| double currentTime = m_element.currentTime(); |
| if (!std::isfinite(currentTime) || !supportsSeeking) |
| currentTime = MediaPlayer::invalidTime(); |
| |
| #if ENABLE(MEDIA_SESSION) |
| auto* session = mediaSession(); |
| auto* sessionMetadata = session ? session->metadata() : nullptr; |
| if (sessionMetadata) { |
| std::optional<NowPlayingInfoArtwork> artwork; |
| if (sessionMetadata->artworkImage()) { |
| ASSERT(sessionMetadata->artworkImage()->data(), "An image must always have associated data"); |
| artwork = NowPlayingInfoArtwork { sessionMetadata->artworkSrc(), sessionMetadata->artworkImage()->mimeType(), sessionMetadata->artworkImage()->data() }; |
| } |
| return NowPlayingInfo { sessionMetadata->title(), sessionMetadata->artist(), sessionMetadata->album(), m_element.sourceApplicationIdentifier(), duration, currentTime, supportsSeeking, m_element.mediaUniqueIdentifier(), isPlaying, allowsNowPlayingControlsVisibility, WTFMove(artwork) }; |
| } |
| #endif |
| |
| return NowPlayingInfo { m_element.mediaSessionTitle(), emptyString(), emptyString(), m_element.sourceApplicationIdentifier(), duration, currentTime, supportsSeeking, m_element.mediaUniqueIdentifier(), isPlaying, allowsNowPlayingControlsVisibility, { }}; |
| } |
| |
| void MediaElementSession::updateMediaUsageIfChanged() |
| { |
| auto& document = m_element.document(); |
| auto* page = document.page(); |
| if (!page || page->sessionID().isEphemeral()) |
| return; |
| |
| bool isOutsideOfFullscreen = false; |
| #if ENABLE(FULLSCREEN_API) |
| if (auto* fullscreenElement = document.fullscreenManager().currentFullscreenElement()) |
| isOutsideOfFullscreen = !m_element.isDescendantOf(*fullscreenElement); |
| #endif |
| bool isAudio = client().presentationType() == MediaType::Audio; |
| bool isVideo = client().presentationType() == MediaType::Video; |
| bool processingUserGesture = document.processingUserGestureForMedia(); |
| bool isPlaying = m_element.isPlaying(); |
| |
| MediaUsageInfo usage = { |
| m_element.currentSrc(), |
| state() == PlatformMediaSession::Playing, |
| canShowControlsManager(PlaybackControlsPurpose::ControlsManager), |
| !page->isVisibleAndActive(), |
| m_element.isSuspended(), |
| m_element.inActiveDocument(), |
| m_element.isFullscreen(), |
| m_element.muted(), |
| document.isMediaDocument() && (document.frame() && document.frame()->isMainFrame()), |
| isVideo, |
| isAudio, |
| m_element.hasVideo(), |
| m_element.hasAudio(), |
| m_element.hasRenderer(), |
| isAudio && hasBehaviorRestriction(RequireUserGestureToControlControlsManager) && !processingUserGesture, |
| m_element.hasAudio() && isPlaying && allowsPlaybackControlsForAutoplayingAudio(), // userHasPlayedAudioBefore |
| isElementRectMostlyInMainFrame(m_element), |
| !!playbackStateChangePermitted(MediaPlaybackState::Playing), |
| page->mediaPlaybackIsSuspended(), |
| document.isMediaDocument() && !document.ownerElement(), |
| pageExplicitlyAllowsElementToAutoplayInline(m_element), |
| requiresFullscreenForVideoPlayback() && !fullscreenPermitted(), |
| document.topDocument().hasHadUserInteraction() && document.quirks().shouldAutoplayForArbitraryUserGesture(), |
| isVideo && hasBehaviorRestriction(RequireUserGestureForVideoRateChange) && !processingUserGesture, |
| isAudio && hasBehaviorRestriction(RequireUserGestureForAudioRateChange) && !processingUserGesture && !m_element.muted() && m_element.volume(), |
| isVideo && hasBehaviorRestriction(RequireUserGestureForVideoDueToLowPowerMode) && !processingUserGesture, |
| !hasBehaviorRestriction(RequireUserGestureToControlControlsManager) || processingUserGesture, |
| hasBehaviorRestriction(RequirePlaybackToControlControlsManager) && !isPlaying, |
| m_element.hasEverNotifiedAboutPlaying(), |
| isOutsideOfFullscreen, |
| isLargeEnoughForMainContent(MediaSessionMainContentPurpose::MediaControls), |
| }; |
| |
| if (m_mediaUsageInfo && *m_mediaUsageInfo == usage) |
| return; |
| |
| m_mediaUsageInfo = WTFMove(usage); |
| |
| #if ENABLE(MEDIA_USAGE) |
| addMediaUsageManagerSessionIfNecessary(); |
| page->chrome().client().updateMediaUsageManagerSessionState(mediaSessionIdentifier(), *m_mediaUsageInfo); |
| #endif |
| } |
| |
| String convertEnumerationToString(const MediaPlaybackDenialReason enumerationValue) |
| { |
| static const NeverDestroyed<String> values[] = { |
| MAKE_STATIC_STRING_IMPL("UserGestureRequired"), |
| MAKE_STATIC_STRING_IMPL("FullscreenRequired"), |
| MAKE_STATIC_STRING_IMPL("PageConsentRequired"), |
| MAKE_STATIC_STRING_IMPL("InvalidState"), |
| }; |
| static_assert(static_cast<size_t>(MediaPlaybackDenialReason::UserGestureRequired) == 0, "MediaPlaybackDenialReason::UserGestureRequired is not 0 as expected"); |
| static_assert(static_cast<size_t>(MediaPlaybackDenialReason::FullscreenRequired) == 1, "MediaPlaybackDenialReason::FullscreenRequired is not 1 as expected"); |
| static_assert(static_cast<size_t>(MediaPlaybackDenialReason::PageConsentRequired) == 2, "MediaPlaybackDenialReason::PageConsentRequired is not 2 as expected"); |
| static_assert(static_cast<size_t>(MediaPlaybackDenialReason::InvalidState) == 3, "MediaPlaybackDenialReason::InvalidState is not 3 as expected"); |
| ASSERT(static_cast<size_t>(enumerationValue) < WTF_ARRAY_LENGTH(values)); |
| return values[static_cast<size_t>(enumerationValue)]; |
| } |
| |
| MediaSession* MediaElementSession::mediaSession() const |
| { |
| #if ENABLE(MEDIA_SESSION) |
| auto* window = m_element.document().domWindow(); |
| if (!window) |
| return nullptr; |
| return &NavigatorMediaSession::mediaSession(window->navigator()); |
| #else |
| return nullptr; |
| #endif |
| } |
| |
| void MediaElementSession::ensureIsObservingMediaSession() |
| { |
| #if ENABLE(MEDIA_SESSION) |
| auto* session = mediaSession(); |
| if (!session || m_observer) |
| return; |
| m_observer = makeUnique<MediaSessionObserver>(*this, *session); |
| #endif |
| } |
| |
| void MediaElementSession::metadataChanged(const RefPtr<MediaMetadata>&) |
| { |
| clientCharacteristicsChanged(); |
| } |
| |
| void MediaElementSession::positionStateChanged(const std::optional<MediaPositionState>&) { } |
| |
| void MediaElementSession::playbackStateChanged(MediaSessionPlaybackState) { } |
| |
| void MediaElementSession::actionHandlersChanged() { } |
| |
| } |
| |
| #endif // ENABLE(VIDEO) |
