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// 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 ATHENA_SYSTEM_ORIENTATION_CONTROLLER_H_
#define ATHENA_SYSTEM_ORIENTATION_CONTROLLER_H_
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chromeos/accelerometer/accelerometer_reader.h"
#include "ui/gfx/display.h"
namespace base {
class TaskRunner;
}
namespace athena {
// Monitors accelerometers, detecting orientation changes. When a change is
// detected rotates the root window to match.
class OrientationController
: public chromeos::AccelerometerReader::Delegate {
public:
OrientationController();
virtual ~OrientationController();
void InitWith(scoped_refptr<base::TaskRunner> blocking_task_runner);
void Shutdown();
// chromeos::AccelerometerReader::Delegate
virtual void HandleAccelerometerUpdate(
const ui::AccelerometerUpdate& update) override;
private:
// The last configured rotation.
gfx::Display::Rotation current_rotation_;
scoped_ptr<chromeos::AccelerometerReader> accelerometer_reader_;
DISALLOW_COPY_AND_ASSIGN(OrientationController);
};
} // namespace athena
#endif // ATHENA_SYSTEM_ORIENTATION_CONTROLLER_H_