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Side by Side Diff: content/renderer/accessibility/renderer_accessibility.h

Issue 273423004: Migrate accessibility from RenderView to RenderFrame. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 7 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_H_ 5 #ifndef CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_H_
6 #define CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_H_ 6 #define CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_H_
7 7
8 #include "content/common/accessibility_messages.h" 8 #include "content/common/accessibility_messages.h"
9 #include "content/public/renderer/render_view_observer.h" 9 #include "content/public/renderer/render_view_observer.h"
10 #include "third_party/WebKit/public/web/WebAXObject.h" 10 #include "third_party/WebKit/public/web/WebAXObject.h"
11 11
12 namespace blink { 12 namespace blink {
13 class WebDocument; 13 class WebDocument;
14 }; 14 };
15 15
16 namespace content { 16 namespace content {
17 class RenderViewImpl; 17 class RenderFrameImpl;
18 18
19 enum RendererAccessibilityType { 19 enum RendererAccessibilityType {
20 // Turns on Blink accessibility and provides a full accessibility 20 // Turns on Blink accessibility and provides a full accessibility
21 // implementation for when assistive technology is running. 21 // implementation for when assistive technology is running.
22 RendererAccessibilityTypeComplete, 22 RendererAccessibilityTypeComplete,
23 23
24 // Does not turn on Blink accessibility. Only sends a minimal accessible tree 24 // Does not turn on Blink accessibility. Only sends a minimal accessible tree
25 // to the browser whenever focus changes. This mode is currently used to 25 // to the browser whenever focus changes. This mode is currently used to
26 // support opening the on-screen keyboard in response to touch events on 26 // support opening the on-screen keyboard in response to touch events on
27 // Windows 8 in Metro mode. 27 // Windows 8 in Metro mode.
(...skipping 25 matching lines...) Expand all
53 // assistive technology is running. 53 // assistive technology is running.
54 // 54 //
55 // RendererAccessibilityFocusOnly - does not turn on Blink 55 // RendererAccessibilityFocusOnly - does not turn on Blink
56 // accessibility. Only sends a minimal accessible tree to the 56 // accessibility. Only sends a minimal accessible tree to the
57 // browser whenever focus changes. This mode is currently used 57 // browser whenever focus changes. This mode is currently used
58 // to support opening the on-screen keyboard in response to 58 // to support opening the on-screen keyboard in response to
59 // touch events on Windows 8 in Metro mode. 59 // touch events on Windows 8 in Metro mode.
60 // 60 //
61 class CONTENT_EXPORT RendererAccessibility : public RenderViewObserver { 61 class CONTENT_EXPORT RendererAccessibility : public RenderViewObserver {
62 public: 62 public:
63 explicit RendererAccessibility(RenderViewImpl* render_view); 63 explicit RendererAccessibility(RenderFrameImpl* render_frame);
64 virtual ~RendererAccessibility(); 64 virtual ~RendererAccessibility();
65 65
66 // Called when an accessibility notification occurs in Blink. 66 // Called when an accessibility notification occurs in Blink.
67 virtual void HandleWebAccessibilityEvent( 67 virtual void HandleWebAccessibilityEvent(
68 const blink::WebAXObject& obj, blink::WebAXEvent event) = 0; 68 const blink::WebAXObject& obj, blink::WebAXEvent event) = 0;
69 69
70 // Gets the type of this RendererAccessibility object. Primarily intended for 70 // Gets the type of this RendererAccessibility object. Primarily intended for
71 // testing. 71 // testing.
72 virtual RendererAccessibilityType GetType() = 0; 72 virtual RendererAccessibilityType GetType() = 0;
73 73
74 protected: 74 protected:
75 // Returns the main top-level document for this page, or NULL if there's 75 // Returns the main top-level document for this page, or NULL if there's
76 // no view or frame. 76 // no view or frame.
77 blink::WebDocument GetMainDocument(); 77 blink::WebDocument GetMainDocument();
78 78
79 #ifndef NDEBUG 79 #ifndef NDEBUG
80 const std::string AccessibilityEventToString(ui::AXEvent event); 80 const std::string AccessibilityEventToString(ui::AXEvent event);
81 #endif 81 #endif
82 82
83 // The RenderViewImpl that owns us. 83 // The RenderFrameImpl that owns us.
84 RenderViewImpl* render_view_; 84 RenderFrameImpl* render_frame_;
85 85
86 // True if verbose logging of accessibility events is on. 86 // True if verbose logging of accessibility events is on.
87 bool logging_; 87 bool logging_;
88 88
89 DISALLOW_COPY_AND_ASSIGN(RendererAccessibility); 89 DISALLOW_COPY_AND_ASSIGN(RendererAccessibility);
90 }; 90 };
91 91
92 } // namespace content 92 } // namespace content
93 93
94 #endif // CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_H_ 94 #endif // CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_H_
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