chrome/browser/chromeos/system/device_change_handler.h

   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 CHROME_BROWSER_CHROMEOS_SYSTEM_DEVICE_CHANGE_HANDLER_H_
   6 #define CHROME_BROWSER_CHROMEOS_SYSTEM_DEVICE_CHANGE_HANDLER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "chrome/browser/chromeos/system/pointer_device_observer.h"
  10
  11 namespace chromeos {
  12 namespace system {
  13
  14 // Observes changes in device hierarchy. When a new touchpad/mouse is attached,
  15 // applies the last used touchpad/mouse settings to the system.
  16 class DeviceChangeHandler : public PointerDeviceObserver::Observer {
  17  public:
  18   DeviceChangeHandler();
  19   ~DeviceChangeHandler() override;
  20
  21  private:
  22   // PointerDeviceObserver::Observer implementation.
  23   void TouchpadExists(bool exists) override;
  24   void MouseExists(bool exists) override;
  25
  26   scoped_ptr<PointerDeviceObserver> pointer_device_observer_;
  27 };
  28
  29 }  // namespace system
  30 }  // namespace chromeos
  31
  32
  33 #endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_DEVICE_CHANGE_HANDLER_H_