| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef ASH_MEDIA_CONTROLLER_H_ |
| #define ASH_MEDIA_CONTROLLER_H_ |
| |
| #include "ash/ash_export.h" |
| #include "ash/public/interfaces/media.mojom.h" |
| #include "base/macros.h" |
| #include "base/observer_list.h" |
| #include "components/account_id/interfaces/account_id.mojom.h" |
| #include "mojo/public/cpp/bindings/associated_binding.h" |
| #include "mojo/public/cpp/bindings/binding_set.h" |
| #include "services/media_session/public/mojom/media_controller.mojom.h" |
| |
| namespace service_manager { |
| class Connector; |
| } // namespace service_manager |
| |
| namespace ash { |
| |
| // Forwards notifications from the MediaController to observers. |
| class MediaCaptureObserver { |
| public: |
| // Called when media capture state has changed. |
| virtual void OnMediaCaptureChanged( |
| const base::flat_map<AccountId, mojom::MediaCaptureState>& |
| capture_states) = 0; |
| |
| protected: |
| virtual ~MediaCaptureObserver() {} |
| }; |
| |
| // Provides the MediaController interface to the outside world. This lets a |
| // consumer of ash provide a MediaClient, which we will dispatch to if one has |
| // been provided to us. |
| class ASH_EXPORT MediaController : public mojom::MediaController { |
| public: |
| // |connector| can be null in tests. |
| explicit MediaController(service_manager::Connector* connector); |
| ~MediaController() override; |
| |
| void BindRequest(mojom::MediaControllerRequest request); |
| |
| void AddObserver(MediaCaptureObserver* observer); |
| void RemoveObserver(MediaCaptureObserver* observer); |
| |
| // mojom::MediaController: |
| void SetClient(mojom::MediaClientAssociatedPtrInfo client) override; |
| void NotifyCaptureState( |
| const base::flat_map<AccountId, mojom::MediaCaptureState>& capture_states) |
| override; |
| |
| // If media session accelerators are enabled then these methods will use the |
| // media session service to control playback. Otherwise it will forward to |
| // |client_|. |
| void HandleMediaPlayPause(); |
| void HandleMediaNextTrack(); |
| void HandleMediaPrevTrack(); |
| |
| // Methods that forward to |client_|. |
| void RequestCaptureState(); |
| void SuspendMediaSessions(); |
| |
| private: |
| friend class MediaSessionAcceleratorTest; |
| friend class MultiProfileMediaTrayItemTest; |
| FRIEND_TEST_ALL_PREFIXES(MediaSessionAcceleratorTest, |
| MediaGlobalAccelerators_NextTrack); |
| FRIEND_TEST_ALL_PREFIXES(MediaSessionAcceleratorTest, |
| MediaGlobalAccelerators_PlayPause); |
| FRIEND_TEST_ALL_PREFIXES(MediaSessionAcceleratorTest, |
| MediaGlobalAccelerators_PrevTrack); |
| |
| void SetMediaSessionControllerForTest( |
| media_session::mojom::MediaControllerPtr controller); |
| |
| void FlushForTesting(); |
| |
| // Returns a pointer to the active media session controller. |
| media_session::mojom::MediaController* GetMediaSessionController(); |
| |
| void OnMediaSessionControllerError(); |
| |
| // Mojo pointer to the active media session controller. |
| media_session::mojom::MediaControllerPtr media_session_controller_ptr_; |
| |
| service_manager::Connector* const connector_; |
| |
| // Bindings for users of the mojo interface. |
| mojo::BindingSet<mojom::MediaController> bindings_; |
| |
| mojom::MediaClientAssociatedPtr client_; |
| |
| base::ObserverList<MediaCaptureObserver>::Unchecked observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MediaController); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_MEDIA_CONTROLLER_H_ |