desktop_configuration_monitor.h

Enable keyboard shortcuts

/*

 *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.

 *  Use of this source code is governed by a BSD-style license

 *  that can be found in the LICENSE file in the root of the source

 *  tree. An additional intellectual property rights grant can be found

 *  in the file PATENTS.  All contributing project authors may

 *  be found in the AUTHORS file in the root of the source tree.

*/

#ifndef MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_CONFIGURATION_MONITOR_H_

#define MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_CONFIGURATION_MONITOR_H_

#include <ApplicationServices/ApplicationServices.h>

#include <memory>

#include <set>

#include "api/ref_counted_base.h"

#include "modules/desktop_capture/mac/desktop_configuration.h"

#include "rtc_base/synchronization/mutex.h"

namespace webrtc {

// The class provides functions to synchronize capturing and display

// reconfiguring across threads, and the up-to-date MacDesktopConfiguration.

class DesktopConfigurationMonitor final

    : public rtc::RefCountedNonVirtual<DesktopConfigurationMonitor> {

 public:

  DesktopConfigurationMonitor();

  ~DesktopConfigurationMonitor();

  DesktopConfigurationMonitor(const DesktopConfigurationMonitor&) = delete;

  DesktopConfigurationMonitor& operator=(const DesktopConfigurationMonitor&) =

      delete;

  // Returns the current desktop configuration.

  MacDesktopConfiguration desktop_configuration();

 private:

  static void DisplaysReconfiguredCallback(CGDirectDisplayID display,

                                           CGDisplayChangeSummaryFlags flags,

                                           void* user_parameter);

  void DisplaysReconfigured(CGDirectDisplayID display,

                            CGDisplayChangeSummaryFlags flags);

  Mutex desktop_configuration_lock_;

  MacDesktopConfiguration desktop_configuration_

      RTC_GUARDED_BY(&desktop_configuration_lock_);

  std::set<CGDirectDisplayID> reconfiguring_displays_;

};

}  // namespace webrtc

#endif  // MODULES_DESKTOP_CAPTURE_MAC_DESKTOP_CONFIGURATION_MONITOR_H_