| // Copyright 2013 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_INPUT_TOUCH_ACTION_H_ |
| #define CONTENT_COMMON_INPUT_TOUCH_ACTION_H_ |
| |
| namespace content { |
| |
| // The current touch action specifies what accelerated browser operations |
| // (panning and zooming) are currently permitted via touch input. |
| // See http://www.w3.org/TR/pointerevents/#the-touch-action-css-property. |
| enum TouchAction { |
| // All actions are pemitted (the default). |
| TOUCH_ACTION_AUTO = 0, |
| |
| // No scrolling or zooming allowed. |
| TOUCH_ACTION_NONE = 1 << 0, |
| |
| TOUCH_ACTION_PAN_X = 1 << 1, |
| |
| TOUCH_ACTION_PAN_Y = 1 << 2, |
| |
| TOUCH_ACTION_PAN_X_Y = TOUCH_ACTION_PAN_X | TOUCH_ACTION_PAN_Y, |
| |
| TOUCH_ACTION_PINCH_ZOOM = 1 << 3, |
| |
| TOUCH_ACTION_MANIPULATION = TOUCH_ACTION_PAN_X_Y | TOUCH_ACTION_PINCH_ZOOM, |
| |
| TOUCH_ACTION_MAX = (1 << 4) - 1 |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_COMMON_INPUT_TOUCH_ACTION_H_ |
