| // 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/public/interfaces/media.mojom.h" |
| #include "base/macros.h" |
| #include "base/observer_list.h" |
| #include "mojo/public/cpp/bindings/associated_binding.h" |
| #include "mojo/public/cpp/bindings/binding_set.h" |
| |
| namespace ash { |
| |
| // Forwards notifications from the MediaController to observers. |
| class MediaCaptureObserver { |
| public: |
| // Called when media capture state has changed. |
| virtual void OnMediaCaptureChanged( |
| const std::vector<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 MediaController : public mojom::MediaController, |
| public mojom::MediaClient { |
| public: |
| MediaController(); |
| ~MediaController() override; |
| |
| void BindRequest(mojom::MediaControllerRequest request); |
| |
| void AddObserver(MediaCaptureObserver* observer); |
| void RemoveObserver(MediaCaptureObserver* observer); |
| |
| // mojom::MediaClient: |
| void HandleMediaNextTrack() override; |
| void HandleMediaPlayPause() override; |
| void HandleMediaPrevTrack() override; |
| void RequestCaptureState() override; |
| |
| private: |
| friend class MultiProfileMediaTrayItemTest; |
| |
| // mojom::MediaController: |
| void SetClient(mojom::MediaClientAssociatedPtrInfo client) override; |
| void NotifyCaptureState( |
| const std::vector<mojom::MediaCaptureState>& capture_states) override; |
| |
| mojo::BindingSet<mojom::MediaController> bindings_; |
| |
| mojom::MediaClientAssociatedPtr client_; |
| |
| base::ObserverList<MediaCaptureObserver> observers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MediaController); |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_MEDIA_CONTROLLER_H_ |