cc/layers/scroll_blocks_on.h

   1 // Copyright 2015 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 CC_LAYERS_SCROLL_BLOCKS_ON_H_
   6 #define CC_LAYERS_SCROLL_BLOCKS_ON_H_
   7
   8 enum ScrollBlocksOn {
   9   SCROLL_BLOCKS_ON_NONE = 0x0,
  10   SCROLL_BLOCKS_ON_START_TOUCH = 0x1,
  11   SCROLL_BLOCKS_ON_WHEEL_EVENT = 0x2,
  12   SCROLL_BLOCKS_ON_SCROLL_EVENT = 0x4,
  13   SCROLL_BLOCKS_ON_MAX = SCROLL_BLOCKS_ON_START_TOUCH |
  14                          SCROLL_BLOCKS_ON_WHEEL_EVENT |
  15                          SCROLL_BLOCKS_ON_SCROLL_EVENT
  16 };
  17
  18 inline ScrollBlocksOn operator|(ScrollBlocksOn a, ScrollBlocksOn b) {
  19   return ScrollBlocksOn(static_cast<int>(a) | static_cast<int>(b));
  20 }
  21
  22 inline ScrollBlocksOn& operator|=(ScrollBlocksOn& a, ScrollBlocksOn b) {
  23   return a = a | b;
  24 }
  25
  26 #endif  // CC_LAYERS_SCROLL_BLOCKS_ON_H_