widget/cocoa/MediaHardwareKeysEventSourceMac.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 file,
   3  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef WIDGET_COCOA_MEDIAHARDWAREKEYSEVENTSOURCEMAC_H_
   6 #define WIDGET_COCOA_MEDIAHARDWAREKEYSEVENTSOURCEMAC_H_
   7
   8 #import <ApplicationServices/ApplicationServices.h>
   9 #import <CoreFoundation/CoreFoundation.h>
  10
  11 #include "mozilla/dom/MediaControlKeySource.h"
  12 #include "nsISupportsImpl.h"
  13
  14 namespace mozilla {
  15 namespace widget {
  16
  17 class MediaHardwareKeysEventSourceMac final
  18     : public mozilla::dom::MediaControlKeySource {
  19  public:
  20   NS_INLINE_DECL_REFCOUNTING(MediaHardwareKeysEventSourceMac, override)
  21   MediaHardwareKeysEventSourceMac() = default;
  22
  23   static CGEventRef EventTapCallback(CGEventTapProxy proxy, CGEventType type,
  24                                      CGEventRef event, void* refcon);
  25
  26   bool Open() override;
  27   void Close() override;
  28   bool IsOpened() const override;
  29
  30   // Currently we don't support showing supported keys on the touch bar.
  31   void SetSupportedMediaKeys(const MediaKeysArray& aSupportedKeys) override {}
  32
  33  private:
  34   ~MediaHardwareKeysEventSourceMac() = default;
  35
  36   bool StartEventTap();
  37   void StopEventTap();
  38
  39   // They are used to intercept mac hardware media keys.
  40   CFMachPortRef mEventTap = nullptr;
  41   CFRunLoopSourceRef mEventTapSource = nullptr;
  42 };
  43
  44 }  // namespace widget
  45 }  // namespace mozilla
  46
  47 #endif