154 lines
4.2 KiB
C++
154 lines
4.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 et tw=78: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MediaTrack.h"
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#include "MediaTrackList.h"
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#include "mozilla/AsyncEventDispatcher.h"
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#include "mozilla/dom/HTMLMediaElement.h"
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#include "mozilla/dom/AudioTrack.h"
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#include "mozilla/dom/VideoTrack.h"
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#include "mozilla/dom/TrackEvent.h"
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#include "nsThreadUtils.h"
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namespace mozilla {
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namespace dom {
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MediaTrackList::MediaTrackList(nsPIDOMWindow* aOwnerWindow,
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HTMLMediaElement* aMediaElement)
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: DOMEventTargetHelper(aOwnerWindow)
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, mMediaElement(aMediaElement)
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{
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}
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MediaTrackList::~MediaTrackList()
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{
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}
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NS_IMPL_CYCLE_COLLECTION_INHERITED(MediaTrackList,
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DOMEventTargetHelper,
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mTracks,
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mMediaElement)
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NS_IMPL_ADDREF_INHERITED(MediaTrackList, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(MediaTrackList, DOMEventTargetHelper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(MediaTrackList)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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MediaTrack*
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MediaTrackList::operator[](uint32_t aIndex)
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{
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return mTracks.ElementAt(aIndex);
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}
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MediaTrack*
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MediaTrackList::IndexedGetter(uint32_t aIndex, bool& aFound)
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{
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aFound = aIndex < mTracks.Length();
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if (!aFound) {
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return nullptr;
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}
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return mTracks[aIndex];
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}
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MediaTrack*
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MediaTrackList::GetTrackById(const nsAString& aId)
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{
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for (uint32_t i = 0; i < mTracks.Length(); ++i) {
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if (aId.Equals(mTracks[i]->GetId())) {
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return mTracks[i];
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}
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}
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return nullptr;
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}
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void
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MediaTrackList::AddTrack(MediaTrack* aTrack)
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{
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mTracks.AppendElement(aTrack);
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aTrack->Init(GetOwner());
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aTrack->SetTrackList(this);
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CreateAndDispatchTrackEventRunner(aTrack, NS_LITERAL_STRING("addtrack"));
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}
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void
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MediaTrackList::RemoveTrack(const RefPtr<MediaTrack>& aTrack)
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{
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mTracks.RemoveElement(aTrack);
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aTrack->SetTrackList(nullptr);
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CreateAndDispatchTrackEventRunner(aTrack, NS_LITERAL_STRING("removetrack"));
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}
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void
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MediaTrackList::RemoveTracks()
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{
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while (!mTracks.IsEmpty()) {
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RefPtr<MediaTrack> track = mTracks.LastElement();
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RemoveTrack(track);
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}
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}
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already_AddRefed<AudioTrack>
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MediaTrackList::CreateAudioTrack(const nsAString& aId,
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const nsAString& aKind,
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const nsAString& aLabel,
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const nsAString& aLanguage,
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bool aEnabled)
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{
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RefPtr<AudioTrack> track = new AudioTrack(aId, aKind, aLabel, aLanguage,
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aEnabled);
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return track.forget();
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}
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already_AddRefed<VideoTrack>
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MediaTrackList::CreateVideoTrack(const nsAString& aId,
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const nsAString& aKind,
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const nsAString& aLabel,
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const nsAString& aLanguage)
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{
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RefPtr<VideoTrack> track = new VideoTrack(aId, aKind, aLabel, aLanguage);
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return track.forget();
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}
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void
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MediaTrackList::EmptyTracks()
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{
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for (uint32_t i = 0; i < mTracks.Length(); ++i) {
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mTracks[i]->SetTrackList(nullptr);
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}
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mTracks.Clear();
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}
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void
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MediaTrackList::CreateAndDispatchChangeEvent()
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{
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RefPtr<AsyncEventDispatcher> asyncDispatcher =
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new AsyncEventDispatcher(this, NS_LITERAL_STRING("change"), false);
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asyncDispatcher->PostDOMEvent();
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}
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void
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MediaTrackList::CreateAndDispatchTrackEventRunner(MediaTrack* aTrack,
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const nsAString& aEventName)
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{
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TrackEventInit eventInit;
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if (aTrack->AsAudioTrack()) {
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eventInit.mTrack.SetValue().SetAsAudioTrack() = aTrack->AsAudioTrack();
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} else if (aTrack->AsVideoTrack()) {
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eventInit.mTrack.SetValue().SetAsVideoTrack() = aTrack->AsVideoTrack();
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}
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RefPtr<TrackEvent> event =
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TrackEvent::Constructor(this, aEventName, eventInit);
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RefPtr<AsyncEventDispatcher> asyncDispatcher =
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new AsyncEventDispatcher(this, event);
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asyncDispatcher->PostDOMEvent();
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}
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} // namespace dom
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} // namespace mozilla
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