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      1 // Copyright 2014 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_ACCESSIBILITY_MODE_ENUMS_H_
      6 #define CONTENT_COMMON_ACCESSIBILITY_MODE_ENUMS_H_
      7 
      8 // Note: keep enums in content/browser/resources/accessibility/accessibility.js
      9 // in sync with these two enums.
     10 enum AccessibilityModeFlag {
     11   // Accessibility updates are processed to create platform trees and events are
     12   // passed to platform APIs in the browser.
     13   AccessibilityModeFlagPlatform = 1 << 0,
     14 
     15   // Accessibility is on, and the full tree is computed. If this flag is off,
     16   // only limited information about editable text nodes is sent to the browser
     17   // process. Useful for implementing limited UIA on tablets.
     18   AccessibilityModeFlagFullTree = 1 << 1,
     19 };
     20 
     21 enum AccessibilityMode {
     22   // All accessibility is off.
     23   AccessibilityModeOff = 0,
     24 
     25   // Renderer accessibility is on, platform APIs are called, but only limited
     26   // information is available (see AccessibilityModeFlagEditableTextOnly).
     27   AccessibilityModeEditableTextOnly = AccessibilityModeFlagPlatform,
     28 
     29   // Renderer accessibility is on, and platform APIs are called.
     30   AccessibilityModeComplete =
     31       AccessibilityModeFlagPlatform | AccessibilityModeFlagFullTree,
     32 
     33   // Renderer accessibility is on, and events are passed to any extensions
     34   // requesting automation, but not to platform accessibility.
     35   AccessibilityModeTreeOnly = AccessibilityModeFlagFullTree,
     36 };
     37 
     38 #endif  // CONTENT_COMMON_ACCESSIBILITY_MODE_ENUMS_H_
     39