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 // Note: keep enums in content/browser/resources/accessibility/accessibility.js
30 // in sync with these two enums.
31 enum AccessibilityModeFlag {
32 // Accessibility updates are processed to create platform trees and events are
33 // passed to platform APIs in the browser.
34 AccessibilityModeFlagPlatform = 1 << 0,
36 // Accessibility is on, and the full tree is computed. If this flag is off,
37 // only limited information about editable text nodes is sent to the browser
38 // process. Useful for implementing limited UIA on tablets.
39 AccessibilityModeFlagFullTree = 1 << 1,
42 enum AccessibilityMode {
43 // All accessibility is off.
44 AccessibilityModeOff = 0,
46 // Renderer accessibility is on, platform APIs are called, but only limited
47 // information is available (see AccessibilityModeFlagEditableTextOnly).
48 AccessibilityModeEditableTextOnly = AccessibilityModeFlagPlatform,
50 // Renderer accessibility is on, and platform APIs are called.
51 AccessibilityModeComplete =
52 AccessibilityModeFlagPlatform | AccessibilityModeFlagFullTree,
54 // Renderer accessibility is on, and events are passed to any extensions
55 // requesting automation, but not to platform accessibility.
56 AccessibilityModeTreeOnly = AccessibilityModeFlagFullTree,
59 #endif // CONTENT_COMMON_VIEW_MESSAGES_ENUMS_H_