widget/cocoa/MediaHardwareKeysEventSourceMacMediaCenter.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef WIDGET_COCOA_MEDIAHARDWAREKEYSEVENTSOURCEMACMEDIACENTER_H_
   6 #define WIDGET_COCOA_MEDIAHARDWAREKEYSEVENTSOURCEMACMEDIACENTER_H_
   7
   8 #include "mozilla/dom/MediaControlKeySource.h"
   9
  10 #ifdef __OBJC__
  11 @class MPRemoteCommandEvent;
  12 #else
  13 typedef struct objc_object MPRemoteCommandEvent;
  14 #endif
  15 enum MPRemoteCommandHandlerStatus : long;
  16
  17 namespace mozilla {
  18 namespace widget {
  19
  20 typedef MPRemoteCommandHandlerStatus (^MediaCenterEventHandler)(MPRemoteCommandEvent* event);
  21
  22 class MediaHardwareKeysEventSourceMacMediaCenter final
  23     : public mozilla::dom::MediaControlKeySource {
  24  public:
  25   NS_INLINE_DECL_REFCOUNTING(MediaHardwareKeysEventSourceMacMediaCenter, override)
  26   MediaHardwareKeysEventSourceMacMediaCenter();
  27
  28   MediaCenterEventHandler CreatePlayPauseHandler();
  29   MediaCenterEventHandler CreateNextTrackHandler();
  30   MediaCenterEventHandler CreatePreviousTrackHandler();
  31   MediaCenterEventHandler CreatePlayHandler();
  32   MediaCenterEventHandler CreatePauseHandler();
  33
  34   bool Open() override;
  35   void Close() override;
  36   bool IsOpened() const override;
  37   void SetPlaybackState(dom::MediaSessionPlaybackState aState) override;
  38   void SetMediaMetadata(const dom::MediaMetadataBase& aMetadata) override;
  39   // Currently we don't support showing supported keys on the touch bar.
  40   void SetSupportedMediaKeys(const MediaKeysArray& aSupportedKeys) override {}
  41
  42  private:
  43   ~MediaHardwareKeysEventSourceMacMediaCenter();
  44   void BeginListeningForEvents();
  45   void EndListeningForEvents();
  46   void HandleEvent(dom::MediaControlKey aKey);
  47
  48   bool mOpened = false;
  49
  50   MediaCenterEventHandler mPlayPauseHandler;
  51   MediaCenterEventHandler mNextTrackHandler;
  52   MediaCenterEventHandler mPreviousTrackHandler;
  53   MediaCenterEventHandler mPauseHandler;
  54   MediaCenterEventHandler mPlayHandler;
  55 };
  56
  57 }  // namespace widget
  58 }  // namespace mozilla
  59
  60 #endif  // WIDGET_COCOA_MEDIAHARDWAREKEYSEVENTSOURCEMACMEDIACENTER_H_