/* -*- 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/. */
#ifndef mozilla_dom_VideoTrack_h
#define mozilla_dom_VideoTrack_h
#include "MediaTrack.h"
namespace mozilla::dom {
class VideoTrackList;
class VideoStreamTrack;
class VideoTrack :
public MediaTrack {
public:
VideoTrack(nsIGlobalObject* aOwnerGlobal,
const nsAString& aId,
const nsAString& aKind,
const nsAString& aLabel,
const nsAString& aLanguage,
VideoStreamTrack* aStreamTrack = nullptr);
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(VideoTrack, MediaTrack)
JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
VideoTrack* AsVideoTrack() override {
return this; }
// When fetching media resource, if no video track is selected by the media
// resource, then the first VideoTrack object in the list is set selected as
// default. If multiple video tracks are selected by its media resource at
// fetching phase, then the first enabled video track is set selected.
// aFlags contains FIRE_NO_EVENTS because no events are fired in such cases.
void SetEnabledInternal(
bool aEnabled,
int aFlags) override;
// Get associated video stream track when the video track comes from
// MediaStream. This might be nullptr when the src of owning HTMLMediaElement
// is not MediaStream.
VideoStreamTrack* GetVideoStreamTrack() {
return mVideoStreamTrack; }
// WebIDL
bool Selected()
const {
return mSelected; }
// Either zero or one video track is selected in a list; If the selected track
// is in a VideoTrackList, then all the other VideoTrack objects in that list
// must be unselected.
void SetSelected(
bool aSelected);
private:
virtual ~VideoTrack();
bool mSelected;
RefPtr<VideoStreamTrack> mVideoStreamTrack;
};
}
// namespace mozilla::dom
#endif // mozilla_dom_VideoTrack_h
