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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/media/MediaTrackList.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/MediaTrackList.cpp')
-rw-r--r--dom/media/MediaTrackList.cpp142
1 files changed, 142 insertions, 0 deletions
diff --git a/dom/media/MediaTrackList.cpp b/dom/media/MediaTrackList.cpp
new file mode 100644
index 0000000000..968f1d6d01
--- /dev/null
+++ b/dom/media/MediaTrackList.cpp
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 et tw=78: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "MediaTrack.h"
+#include "MediaTrackList.h"
+#include "mozilla/AsyncEventDispatcher.h"
+#include "mozilla/dom/HTMLMediaElement.h"
+#include "mozilla/dom/AudioTrack.h"
+#include "mozilla/dom/VideoTrack.h"
+#include "mozilla/dom/TrackEvent.h"
+#include "nsThreadUtils.h"
+
+namespace mozilla::dom {
+
+MediaTrackList::MediaTrackList(nsIGlobalObject* aOwnerObject,
+ HTMLMediaElement* aMediaElement)
+ : DOMEventTargetHelper(aOwnerObject), mMediaElement(aMediaElement) {}
+
+MediaTrackList::~MediaTrackList() = default;
+
+NS_IMPL_CYCLE_COLLECTION_INHERITED(MediaTrackList, DOMEventTargetHelper,
+ mTracks, mMediaElement)
+
+NS_IMPL_ADDREF_INHERITED(MediaTrackList, DOMEventTargetHelper)
+NS_IMPL_RELEASE_INHERITED(MediaTrackList, DOMEventTargetHelper)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MediaTrackList)
+NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
+
+MediaTrack* MediaTrackList::operator[](uint32_t aIndex) {
+ return mTracks.ElementAt(aIndex);
+}
+
+MediaTrack* MediaTrackList::IndexedGetter(uint32_t aIndex, bool& aFound) {
+ aFound = aIndex < mTracks.Length();
+ if (!aFound) {
+ return nullptr;
+ }
+ return mTracks[aIndex];
+}
+
+MediaTrack* MediaTrackList::GetTrackById(const nsAString& aId) {
+ for (uint32_t i = 0; i < mTracks.Length(); ++i) {
+ if (aId.Equals(mTracks[i]->GetId())) {
+ return mTracks[i];
+ }
+ }
+ return nullptr;
+}
+
+void MediaTrackList::AddTrack(MediaTrack* aTrack) {
+ MOZ_ASSERT(aTrack->GetOwnerGlobal() == GetOwnerGlobal(),
+ "Where is this track from?");
+ mTracks.AppendElement(aTrack);
+ aTrack->SetTrackList(this);
+ CreateAndDispatchTrackEventRunner(aTrack, u"addtrack"_ns);
+
+ if (HTMLMediaElement* element = GetMediaElement()) {
+ element->NotifyMediaTrackAdded(aTrack);
+ }
+
+ if ((!aTrack->AsAudioTrack() || !aTrack->AsAudioTrack()->Enabled()) &&
+ (!aTrack->AsVideoTrack() || !aTrack->AsVideoTrack()->Selected())) {
+ // Track not enabled, no need to notify media element.
+ return;
+ }
+
+ if (HTMLMediaElement* element = GetMediaElement()) {
+ element->NotifyMediaTrackEnabled(aTrack);
+ }
+}
+
+void MediaTrackList::RemoveTrack(const RefPtr<MediaTrack>& aTrack) {
+ mTracks.RemoveElement(aTrack);
+ aTrack->SetEnabledInternal(false, MediaTrack::FIRE_NO_EVENTS);
+ aTrack->SetTrackList(nullptr);
+ CreateAndDispatchTrackEventRunner(aTrack, u"removetrack"_ns);
+ if (HTMLMediaElement* element = GetMediaElement()) {
+ element->NotifyMediaTrackRemoved(aTrack);
+ }
+}
+
+void MediaTrackList::RemoveTracks() {
+ while (!mTracks.IsEmpty()) {
+ RefPtr<MediaTrack> track = mTracks.LastElement();
+ RemoveTrack(track);
+ }
+}
+
+already_AddRefed<AudioTrack> MediaTrackList::CreateAudioTrack(
+ nsIGlobalObject* aOwnerGlobal, const nsAString& aId, const nsAString& aKind,
+ const nsAString& aLabel, const nsAString& aLanguage, bool aEnabled,
+ AudioStreamTrack* aAudioTrack) {
+ RefPtr<AudioTrack> track = new AudioTrack(aOwnerGlobal, aId, aKind, aLabel,
+ aLanguage, aEnabled, aAudioTrack);
+ return track.forget();
+}
+
+already_AddRefed<VideoTrack> MediaTrackList::CreateVideoTrack(
+ nsIGlobalObject* aOwnerGlobal, const nsAString& aId, const nsAString& aKind,
+ const nsAString& aLabel, const nsAString& aLanguage,
+ VideoStreamTrack* aVideoTrack) {
+ RefPtr<VideoTrack> track =
+ new VideoTrack(aOwnerGlobal, aId, aKind, aLabel, aLanguage, aVideoTrack);
+ return track.forget();
+}
+
+void MediaTrackList::EmptyTracks() {
+ for (uint32_t i = 0; i < mTracks.Length(); ++i) {
+ mTracks[i]->SetEnabledInternal(false, MediaTrack::FIRE_NO_EVENTS);
+ mTracks[i]->SetTrackList(nullptr);
+ }
+ mTracks.Clear();
+}
+
+void MediaTrackList::CreateAndDispatchChangeEvent() {
+ RefPtr<AsyncEventDispatcher> asyncDispatcher =
+ new AsyncEventDispatcher(this, u"change"_ns, CanBubble::eNo);
+ asyncDispatcher->PostDOMEvent();
+}
+
+void MediaTrackList::CreateAndDispatchTrackEventRunner(
+ MediaTrack* aTrack, const nsAString& aEventName) {
+ TrackEventInit eventInit;
+
+ if (aTrack->AsAudioTrack()) {
+ eventInit.mTrack.SetValue().SetAsAudioTrack() = aTrack->AsAudioTrack();
+ } else if (aTrack->AsVideoTrack()) {
+ eventInit.mTrack.SetValue().SetAsVideoTrack() = aTrack->AsVideoTrack();
+ }
+
+ RefPtr<TrackEvent> event =
+ TrackEvent::Constructor(this, aEventName, eventInit);
+
+ RefPtr<AsyncEventDispatcher> asyncDispatcher =
+ new AsyncEventDispatcher(this, event.forget());
+ asyncDispatcher->PostDOMEvent();
+}
+
+} // namespace mozilla::dom