Index: content/common/sensors.h |
diff --git a/content/common/sensors.h b/content/common/sensors.h |
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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_ |