Home | History | Annotate | Download | only in input 
      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_COMMON_INPUT_TOUCH_ACTION_H_
      6 #define CONTENT_COMMON_INPUT_TOUCH_ACTION_H_
      7 
      8 namespace content {
      9 
     10 // The current touch action specifies what accelerated browser operations
     11 // (panning and zooming) are currently permitted via touch input.
     12 // See http://www.w3.org/TR/pointerevents/#the-touch-action-css-property.
     13 enum TouchAction {
     14   // All actions are pemitted (the default).
     15   TOUCH_ACTION_AUTO = 0,
     16 
     17   // No scrolling or zooming allowed.
     18   TOUCH_ACTION_NONE = 1 << 0,
     19 
     20   TOUCH_ACTION_PAN_X = 1 << 1,
     21 
     22   TOUCH_ACTION_PAN_Y = 1 << 2,
     23 
     24   TOUCH_ACTION_PAN_X_Y = TOUCH_ACTION_PAN_X | TOUCH_ACTION_PAN_Y,
     25 
     26   TOUCH_ACTION_PINCH_ZOOM = 1 << 3,
     27 
     28   TOUCH_ACTION_MANIPULATION = TOUCH_ACTION_PAN_X_Y | TOUCH_ACTION_PINCH_ZOOM,
     29 
     30   TOUCH_ACTION_MAX = (1 << 4) - 1
     31 };
     32 
     33 }  // namespace content
     34 
     35 #endif  // CONTENT_COMMON_INPUT_TOUCH_ACTION_H_
     36