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. 4 5 #ifndef CONTENT_COMMON_VIEW_MESSAGES_ENUMS_H_ 6 #define CONTENT_COMMON_VIEW_MESSAGES_ENUMS_H_ 7 8 #include "ipc/ipc_message_macros.h" 9 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 { 13 enum { 14 IS_RESIZE_ACK = 1 << 0, 15 IS_REPAINT_ACK = 1 << 2, 16 }; is_resize_ackViewHostMsg_UpdateRect_Flags17 static bool is_resize_ack(int flags) { 18 return (flags & IS_RESIZE_ACK) != 0; 19 } is_repaint_ackViewHostMsg_UpdateRect_Flags20 static bool is_repaint_ack(int flags) { 21 return (flags & IS_REPAINT_ACK) != 0; 22 } 23 }; 24 25 // Note: keep enums in content/browser/resources/accessibility/accessibility.js 26 // in sync with these two enums. 27 enum AccessibilityModeFlag { 28 // Accessibility updates are processed to create platform trees and events are 29 // passed to platform APIs in the browser. 30 AccessibilityModeFlagPlatform = 1 << 0, 31 32 // Accessibility is on, and the full tree is computed. If this flag is off, 33 // only limited information about editable text nodes is sent to the browser 34 // process. Useful for implementing limited UIA on tablets. 35 AccessibilityModeFlagFullTree = 1 << 1, 36 }; 37 38 enum AccessibilityMode { 39 // All accessibility is off. 40 AccessibilityModeOff = 0, 41 42 // Renderer accessibility is on, platform APIs are called, but only limited 43 // information is available (see AccessibilityModeFlagEditableTextOnly). 44 AccessibilityModeEditableTextOnly = AccessibilityModeFlagPlatform, 45 46 // Renderer accessibility is on, and platform APIs are called. 47 AccessibilityModeComplete = 48 AccessibilityModeFlagPlatform | AccessibilityModeFlagFullTree, 49 50 // Renderer accessibility is on, and events are passed to any extensions 51 // requesting automation, but not to platform accessibility. 52 AccessibilityModeTreeOnly = AccessibilityModeFlagFullTree, 53 }; 54 55 #endif // CONTENT_COMMON_VIEW_MESSAGES_ENUMS_H_ 56