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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/. */
#ifndef mozilla_dom_VideoTrack_h
#define mozilla_dom_VideoTrack_h
#include "MediaTrack.h"
namespace mozilla {
namespace dom {
class VideoTrackList;
class VideoStreamTrack;
class VideoTrack : public MediaTrack
{
public:
VideoTrack(const nsAString& aId,
const nsAString& aKind,
const nsAString& aLabel,
const nsAString& aLanguage,
VideoStreamTrack* aStreamTarck = 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 dom
} // namespace mozilla
#endif // mozilla_dom_VideoTrack_h
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