1 // Copyright 2013 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 ASH_MEDIA_DELEGATE_H_ 6 #define ASH_MEDIA_DELEGATE_H_ 7 8 namespace content { 9 class BrowserContext; 10 } 11 12 namespace ash { 13 14 enum MediaCaptureState { 15 MEDIA_CAPTURE_NONE = 0, 16 MEDIA_CAPTURE_AUDIO = 1 << 0, 17 MEDIA_CAPTURE_VIDEO = 1 << 1, 18 MEDIA_CAPTURE_AUDIO_VIDEO = MEDIA_CAPTURE_AUDIO | MEDIA_CAPTURE_VIDEO, 19 }; 20 21 // A delegate class to control media playback. 22 class MediaDelegate { 23 public: 24 virtual ~MediaDelegate() {} 25 26 // Handles the Next Track Media shortcut key. 27 virtual void HandleMediaNextTrack() = 0; 28 29 // Handles the Play/Pause Toggle Media shortcut key. 30 virtual void HandleMediaPlayPause() = 0; 31 32 // Handles the Previous Track Media shortcut key. 33 virtual void HandleMediaPrevTrack() = 0; 34 35 // Returns the current media recording state of web contents 36 // that belongs to the |context|. 37 virtual MediaCaptureState GetMediaCaptureState( 38 content::BrowserContext* context) = 0; 39 }; 40 41 } // namespace ash 42 43 #endif // ASH_MEDIA_DELEGATE_H_ 44
