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// Copyright (c) 2011 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 CONTENT_COMMON_SENSORS_H_
#define CONTENT_COMMON_SENSORS_H_
#pragma once
// The sensors API will unify various types of sensor data into a set of
// channels, each of which provides change events and periodic updates.
//
// This version of the API is intended only to support the experimental screen
// rotation code and is not for general use.
namespace sensors {
// Indicates the coarse orientation of the device.
struct ScreenOrientation {
enum Side {
TOP = 0, // The screen is in its normal orientation.
BOTTOM = 1, // The screen is upside-down (180-degree rotation).
LEFT = 2, // The right side of the screen is at the top.
RIGHT = 3, // The left side of the screen is at the top.
FRONT = 4, // The screen is laid flat, facing upward.
BACK = 5 // The screen is laid flat, facing downward.
};
// The side of the device which the user probably perceives as facing upward.
// This can be used to orient controls and content in a "natural" direction.
Side upward;
};
} // namespace sensors
#endif // CONTENT_COMMON_SENSORS_H_
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