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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASESSION_MEDIA_SESSION_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASESSION_MEDIA_SESSION_H_
#include "base/memory/raw_ptr.h"
#include "mojo/public/cpp/bindings/remote.h"
#include "third_party/blink/public/mojom/mediasession/media_session.mojom-blink.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_media_session_action.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_map.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_receiver.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_remote.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_wrapper_mode.h"
#include "third_party/blink/renderer/platform/supplementable.h"
#include "third_party/blink/renderer/platform/wtf/gc_plugin.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace base {
class TickClock;
} // namespace base
namespace blink {
class ExceptionState;
class MediaMetadata;
class MediaPositionState;
class Navigator;
class V8MediaSessionActionHandler;
class V8MediaSessionPlaybackState;
class MODULES_EXPORT MediaSession final
: public ScriptWrappable,
public Supplement<Navigator>,
public blink::mojom::blink::MediaSessionClient {
DEFINE_WRAPPERTYPEINFO();
public:
static const char kSupplementName[];
static MediaSession* mediaSession(Navigator&);
explicit MediaSession(Navigator&);
void setPlaybackState(const V8MediaSessionPlaybackState&);
V8MediaSessionPlaybackState playbackState();
void setMetadata(MediaMetadata*);
MediaMetadata* metadata() const;
void setActionHandler(const V8MediaSessionAction& action,
V8MediaSessionActionHandler*,
ExceptionState&);
void setPositionState(MediaPositionState*, ExceptionState&);
void setMicrophoneActive(bool active);
void setCameraActive(bool active);
// Called by the MediaMetadata owned by |this| when it has updates. Also used
// internally when a new MediaMetadata object is set.
void OnMetadataChanged();
void Trace(Visitor*) const override;
private:
friend class V8MediaSession;
friend class MediaSessionTest;
enum class ActionChangeType {
kActionEnabled,
kActionDisabled,
};
void NotifyActionChange(V8MediaSessionAction::Enum action, ActionChangeType);
base::TimeDelta GetPositionNow() const;
void RecalculatePositionState(bool was_set);
// blink::mojom::blink::MediaSessionClient implementation.
void DidReceiveAction(media_session::mojom::blink::MediaSessionAction,
mojom::blink::MediaSessionActionDetailsPtr) override;
// Returns null if the associated window is detached.
mojom::blink::MediaSessionService* GetService();
raw_ptr<const base::TickClock, DanglingUntriaged> clock_ = nullptr;
mojom::blink::MediaSessionPlaybackState playback_state_;
media_session::mojom::blink::MediaPositionPtr position_state_;
double declared_playback_rate_ = 0.0;
Member<MediaMetadata> metadata_;
HeapHashMap<V8MediaSessionAction::Enum, Member<V8MediaSessionActionHandler>>
action_handlers_;
HeapMojoRemote<mojom::blink::MediaSessionService> service_;
HeapMojoReceiver<blink::mojom::blink::MediaSessionClient, MediaSession>
client_receiver_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_MEDIASESSION_MEDIA_SESSION_H_
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