1 // Copyright (c) 2012 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.
5 #ifndef CONTENT_COMMON_VIEW_MESSAGES_ENUMS_H_
6 #define CONTENT_COMMON_VIEW_MESSAGES_ENUMS_H_
8 #include "ipc/ipc_message_macros.h"
10 // Values that may be OR'd together to form the 'flags' parameter of a
11 // ViewHostMsg_UpdateRect_Params structure.
12 struct ViewHostMsg_UpdateRect_Flags {
14 IS_RESIZE_ACK = 1 << 0,
15 IS_RESTORE_ACK = 1 << 1,
16 IS_REPAINT_ACK = 1 << 2,
18 static bool is_resize_ack(int flags) {
19 return (flags & IS_RESIZE_ACK) != 0;
21 static bool is_restore_ack(int flags) {
22 return (flags & IS_RESTORE_ACK) != 0;
24 static bool is_repaint_ack(int flags) {
25 return (flags & IS_REPAINT_ACK) != 0;
29 enum AccessibilityModeFlag {
30 // Accessibility updates are processed to create platform trees and events are
31 // passed to platform APIs in the browser.
32 AccessibilityModeFlagPlatform = 1 << 0,
34 // Accessibility is on, and the full tree is computed. If this flag is off,
35 // only limited information about editable text nodes is sent to the browser
36 // process. Useful for implementing limited UIA on tablets.
37 AccessibilityModeFlagPlatformFullTree = 1 << 1,
40 enum AccessibilityMode {
41 // All accessibility is off.
42 AccessibilityModeOff = 0,
44 // Renderer accessibility is on, and platform APIs are called. Note that this
45 // is different to AccessibilityModeAll, which is defined to be all bits on.
46 AccessibilityModeComplete =
47 AccessibilityModeFlagPlatform | AccessibilityModeFlagPlatformFullTree,
49 // Renderer accessibility is on, platform APIs are called, but only limited
50 // information is available (see AccessibilityModeFlagEditableTextOnly).
51 AccessibilityModeEditableTextOnly = AccessibilityModeFlagPlatform
54 #endif // CONTENT_COMMON_VIEW_MESSAGES_ENUMS_H_