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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/VideoTrackList.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/VideoTrackList.cpp')
-rw-r--r--dom/media/VideoTrackList.cpp80
1 files changed, 80 insertions, 0 deletions
diff --git a/dom/media/VideoTrackList.cpp b/dom/media/VideoTrackList.cpp
new file mode 100644
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+++ b/dom/media/VideoTrackList.cpp
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "mozilla/dom/VideoTrack.h"
+#include "mozilla/dom/VideoTrackList.h"
+#include "mozilla/dom/VideoTrackListBinding.h"
+
+namespace mozilla::dom {
+
+JSObject* VideoTrackList::WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return VideoTrackList_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+VideoTrack* VideoTrackList::operator[](uint32_t aIndex) {
+ MediaTrack* track = MediaTrackList::operator[](aIndex);
+ return track->AsVideoTrack();
+}
+
+void VideoTrackList::RemoveTrack(const RefPtr<MediaTrack>& aTrack) {
+ // we need to find the video track before |MediaTrackList::RemoveTrack|. Or
+ // mSelectedIndex will not be valid. The check of mSelectedIndex == -1
+ // need to be done after RemoveTrack. Also the call of
+ // |MediaTrackList::RemoveTrack| is necessary even when mSelectedIndex = -1.
+ bool found;
+ VideoTrack* selectedVideoTrack = IndexedGetter(mSelectedIndex, found);
+ MediaTrackList::RemoveTrack(aTrack);
+ if (mSelectedIndex == -1) {
+ // There was no selected track and we don't select another track on removal.
+ return;
+ }
+ MOZ_ASSERT(found, "When mSelectedIndex is set it should point to a track");
+ MOZ_ASSERT(selectedVideoTrack,
+ "The mSelectedIndex should be set to video track only");
+
+ // Let the caller of RemoveTrack deal with choosing the new selected track if
+ // it removes the currently-selected track.
+ if (aTrack == selectedVideoTrack) {
+ mSelectedIndex = -1;
+ return;
+ }
+
+ // The removed track was not the selected track and there is a
+ // currently-selected video track. We need to find the new location of the
+ // selected track.
+ for (size_t ix = 0; ix < mTracks.Length(); ix++) {
+ if (mTracks[ix] == selectedVideoTrack) {
+ mSelectedIndex = ix;
+ return;
+ }
+ }
+}
+
+void VideoTrackList::EmptyTracks() {
+ mSelectedIndex = -1;
+ MediaTrackList::EmptyTracks();
+}
+
+VideoTrack* VideoTrackList::GetSelectedTrack() {
+ if (mSelectedIndex < 0 ||
+ static_cast<size_t>(mSelectedIndex) >= mTracks.Length()) {
+ return nullptr;
+ }
+
+ return operator[](mSelectedIndex);
+}
+
+VideoTrack* VideoTrackList::IndexedGetter(uint32_t aIndex, bool& aFound) {
+ MediaTrack* track = MediaTrackList::IndexedGetter(aIndex, aFound);
+ return track ? track->AsVideoTrack() : nullptr;
+}
+
+VideoTrack* VideoTrackList::GetTrackById(const nsAString& aId) {
+ MediaTrack* track = MediaTrackList::GetTrackById(aId);
+ return track ? track->AsVideoTrack() : nullptr;
+}
+
+} // namespace mozilla::dom