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      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_SYSTEM_CHROMEOS_BRIGHTNESS_BRIGHTNESS_CONTROLLER_CHROMEOS_H_
      6 #define ASH_SYSTEM_CHROMEOS_BRIGHTNESS_BRIGHTNESS_CONTROLLER_CHROMEOS_H_
      7 
      8 #include "ash/ash_export.h"
      9 #include "ash/system/brightness_control_delegate.h"
     10 #include "base/basictypes.h"
     11 #include "base/compiler_specific.h"
     12 
     13 namespace ash {
     14 namespace system {
     15 
     16 // A class which controls brightness when F6, F7 or a multimedia key for
     17 // brightness is pressed.
     18 class ASH_EXPORT BrightnessControllerChromeos
     19     : public ash::BrightnessControlDelegate {
     20  public:
     21   BrightnessControllerChromeos() {}
     22   virtual ~BrightnessControllerChromeos() {}
     23 
     24   // Overridden from ash::BrightnessControlDelegate:
     25   virtual bool HandleBrightnessDown(
     26       const ui::Accelerator& accelerator) OVERRIDE;
     27   virtual bool HandleBrightnessUp(const ui::Accelerator& accelerator) OVERRIDE;
     28   virtual void SetBrightnessPercent(double percent, bool gradual) OVERRIDE;
     29   virtual void GetBrightnessPercent(
     30       const base::Callback<void(double)>& callback) OVERRIDE;
     31 
     32  private:
     33   DISALLOW_COPY_AND_ASSIGN(BrightnessControllerChromeos);
     34 };
     35 
     36 }  // namespace system
     37 }  // namespace ash
     38 
     39 #endif  // ASH_SYSTEM_CHROMEOS_BRIGHTNESS_BRIGHTNESS_CONTROLLER_CHROMEOS_H_
     40