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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CONTENT_COMMON_SENSORS_H_ | 5 #ifndef CONTENT_PUBLIC_BROWSER_SENSORS_H_ |
6 #define CONTENT_COMMON_SENSORS_H_ | 6 #define CONTENT_PUBLIC_BROWSER_SENSORS_H_ |
7 #pragma once | 7 #pragma once |
8 | 8 |
9 // The sensors API will unify various types of sensor data into a set of | 9 // The sensors API will unify various types of sensor data into a set of |
10 // channels, each of which provides change events and periodic updates. | 10 // channels, each of which provides change events and periodic updates. |
11 // | 11 // |
12 // This version of the API is intended only to support the experimental screen | 12 // This version of the API is intended only to support the experimental screen |
13 // rotation code and is not for general use. | 13 // rotation code and is not for general use. |
14 | 14 |
15 namespace sensors { | 15 namespace content { |
16 | 16 |
17 // Indicates the coarse orientation of the device. | 17 // The side of the device which the user probably perceives as facing upward. |
18 struct ScreenOrientation { | 18 // This can be used to orient controls and content in a "natural" direction. |
19 enum Side { | 19 enum ScreenOrientation { |
20 TOP = 0, // The screen is in its normal orientation. | 20 SCREEN_ORIENTATION_TOP = 0, // The screen is in its normal orientation. |
21 BOTTOM = 1, // The screen is upside-down (180-degree rotation). | 21 // The screen is upside-down (180-degree rotation). |
22 LEFT = 2, // The right side of the screen is at the top. | 22 SCREEN_ORIENTATION_BOTTOM = 1, |
23 RIGHT = 3, // The left side of the screen is at the top. | 23 SCREEN_ORIENTATION_LEFT = 2, // The right side of the screen is at the top. |
24 FRONT = 4, // The screen is laid flat, facing upward. | 24 SCREEN_ORIENTATION_RIGHT = 3, // The left side of the screen is at the top. |
25 BACK = 5 // The screen is laid flat, facing downward. | 25 SCREEN_ORIENTATION_FRONT = 4, // The screen is laid flat, facing upward. |
26 }; | 26 SCREEN_ORIENTATION_BACK = 5 // The screen is laid flat, facing downward. |
27 | |
28 // The side of the device which the user probably perceives as facing upward. | |
29 // This can be used to orient controls and content in a "natural" direction. | |
30 Side upward; | |
31 }; | 27 }; |
32 | 28 |
33 } // namespace sensors | 29 } // namespace content |
34 | 30 |
35 #endif // CONTENT_COMMON_SENSORS_H_ | 31 #endif // CONTENT_PUBLIC_BROWSER_SENSORS_H_ |
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