root/ash/wm/maximize_mode/maximize_mode_controller.h

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INCLUDED FROM

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef ASH_WM_MAXIMIZE_MODE_MAXIMIZE_MODE_CONTROLLER_H_
#define ASH_WM_MAXIMIZE_MODE_MAXIMIZE_MODE_CONTROLLER_H_

#include "ash/accelerometer/accelerometer_observer.h"
#include "base/macros.h"

namespace ash {

// MaximizeModeController listens to accelerometer events and automatically
// enters and exits maximize mode when the lid is opened beyond the triggering
// angle and rotates the display to match the device when in maximize mode.
class MaximizeModeController : public AccelerometerObserver {
 public:
  MaximizeModeController();
  virtual ~MaximizeModeController();

  virtual void OnAccelerometerUpdated(const gfx::Vector3dF& base,
                                      const gfx::Vector3dF& lid) OVERRIDE;
 private:
  // Detect hinge rotation from |base| and |lid| accelerometers and
  // automatically start / stop maximize mode.
  void HandleHingeRotation(const gfx::Vector3dF& base,
                           const gfx::Vector3dF& lid);

  // Detect screen rotation from |lid| accelerometer and automatically rotate
  // screen.
  void HandleScreenRotation(const gfx::Vector3dF& lid);

  DISALLOW_COPY_AND_ASSIGN(MaximizeModeController);
};

}  // namespace ash

#endif  // ASH_WM_MAXIMIZE_MODE_MAXIMIZE_MODE_CONTROLLER_H_
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