1 // Copyright 2016 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_BROWSER_MEDIA_SESSION_MEDIA_SESSION_SERVICE_IMPL_H_ 6 #define CONTENT_BROWSER_MEDIA_SESSION_MEDIA_SESSION_SERVICE_IMPL_H_ 7 8 #include "content/common/content_export.h" 9 #include "mojo/public/cpp/bindings/pending_receiver.h" 10 #include "mojo/public/cpp/bindings/pending_remote.h" 11 #include "mojo/public/cpp/bindings/receiver.h" 12 #include "mojo/public/cpp/bindings/remote.h" 13 #include "third_party/blink/public/mojom/mediasession/media_session.mojom.h" 14 15 namespace content { 16 17 class RenderFrameHost; 18 class MediaSessionImpl; 19 20 // There is one MediaSessionService per frame. The class is owned by 21 // RenderFrameHost and should register/unregister itself to/from 22 // MediaSessionImpl when RenderFrameHost is created/destroyed. 23 class CONTENT_EXPORT MediaSessionServiceImpl 24 : public blink::mojom::MediaSessionService { 25 public: 26 ~MediaSessionServiceImpl() override; 27 28 static void Create( 29 RenderFrameHost* render_frame_host, 30 mojo::PendingReceiver<blink::mojom::MediaSessionService> receiver); GetClient()31 const mojo::Remote<blink::mojom::MediaSessionClient>& GetClient() { 32 return client_; 33 } 34 RenderFrameHost* GetRenderFrameHost(); 35 playback_state()36 blink::mojom::MediaSessionPlaybackState playback_state() const { 37 return playback_state_; 38 } metadata()39 const blink::mojom::SpecMediaMetadataPtr& metadata() const { 40 return metadata_; 41 } actions()42 const std::set<media_session::mojom::MediaSessionAction>& actions() const { 43 return actions_; 44 } position()45 const base::Optional<media_session::MediaPosition>& position() const { 46 return position_; 47 } 48 49 void DidFinishNavigation(); 50 void FlushForTesting(); 51 52 // blink::mojom::MediaSessionService implementation. 53 void SetClient( 54 mojo::PendingRemote<blink::mojom::MediaSessionClient> client) override; 55 56 void SetPlaybackState(blink::mojom::MediaSessionPlaybackState state) override; 57 void SetPositionState( 58 const base::Optional<media_session::MediaPosition>& position) override; 59 void SetMetadata(blink::mojom::SpecMediaMetadataPtr metadata) override; 60 61 void EnableAction(media_session::mojom::MediaSessionAction action) override; 62 void DisableAction(media_session::mojom::MediaSessionAction action) override; 63 64 protected: 65 explicit MediaSessionServiceImpl(RenderFrameHost* render_frame_host); 66 67 private: 68 MediaSessionImpl* GetMediaSession(); 69 70 void Bind(mojo::PendingReceiver<blink::mojom::MediaSessionService> receiver); 71 72 void ClearActions(); 73 74 const int render_frame_process_id_; 75 const int render_frame_routing_id_; 76 77 // RAII binding of |this| to an MediaSessionService interface request. 78 // The binding is removed when receiver_ is cleared or goes out of scope. 79 std::unique_ptr<mojo::Receiver<blink::mojom::MediaSessionService>> receiver_; 80 mojo::Remote<blink::mojom::MediaSessionClient> client_; 81 blink::mojom::MediaSessionPlaybackState playback_state_; 82 blink::mojom::SpecMediaMetadataPtr metadata_; 83 std::set<media_session::mojom::MediaSessionAction> actions_; 84 base::Optional<media_session::MediaPosition> position_; 85 86 DISALLOW_COPY_AND_ASSIGN(MediaSessionServiceImpl); 87 }; 88 89 } // namespace content 90 91 #endif // CONTENT_BROWSER_MEDIA_SESSION_MEDIA_SESSION_SERVICE_IMPL_H_ 92