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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_COMPLETE_H_ | 5 #ifndef CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_COMPLETE_H_ |
| 6 #define CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_COMPLETE_H_ | 6 #define CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_COMPLETE_H_ |
| 7 | 7 |
| 8 #include <set> | 8 #include <set> |
| 9 #include <vector> | 9 #include <vector> |
| 10 | 10 |
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| 30 // complete accessibility support for assistive technology (as opposed to | 30 // complete accessibility support for assistive technology (as opposed to |
| 31 // partial support - see RendererAccessibilityFocusOnly). | 31 // partial support - see RendererAccessibilityFocusOnly). |
| 32 // | 32 // |
| 33 // This version turns on Blink's accessibility code and sends | 33 // This version turns on Blink's accessibility code and sends |
| 34 // a serialized representation of that tree whenever it changes. It also | 34 // a serialized representation of that tree whenever it changes. It also |
| 35 // handles requests from the browser to perform accessibility actions on | 35 // handles requests from the browser to perform accessibility actions on |
| 36 // nodes in the tree (e.g., change focus, or click on a button). | 36 // nodes in the tree (e.g., change focus, or click on a button). |
| 37 class CONTENT_EXPORT RendererAccessibilityComplete | 37 class CONTENT_EXPORT RendererAccessibilityComplete |
| 38 : public RendererAccessibility { | 38 : public RendererAccessibility { |
| 39 public: | 39 public: |
| 40 explicit RendererAccessibilityComplete(RenderFrameImpl* render_frame); | 40 explicit RendererAccessibilityComplete(RenderViewImpl* render_view); |
| 41 virtual ~RendererAccessibilityComplete(); | 41 virtual ~RendererAccessibilityComplete(); |
| 42 | 42 |
| 43 // RenderFrameObserver implementation. | 43 // RenderView::Observer implementation. |
| 44 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; | 44 virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE; |
| 45 virtual void FocusedNodeChanged(const blink::WebNode& node) OVERRIDE; |
| 46 virtual void DidFinishLoad(blink::WebLocalFrame* frame) OVERRIDE; |
| 45 | 47 |
| 46 // RendererAccessibility. | 48 // RendererAccessibility. |
| 47 virtual void HandleWebAccessibilityEvent( | 49 virtual void HandleWebAccessibilityEvent( |
| 48 const blink::WebAXObject& obj, blink::WebAXEvent event) OVERRIDE; | 50 const blink::WebAXObject& obj, blink::WebAXEvent event) OVERRIDE; |
| 49 virtual RendererAccessibilityType GetType() OVERRIDE; | 51 virtual RendererAccessibilityType GetType() OVERRIDE; |
| 50 virtual void FocusedNodeChanged(const blink::WebNode& node) OVERRIDE; | |
| 51 | 52 |
| 52 void HandleAXEvent(const blink::WebAXObject& obj, ui::AXEvent event); | 53 void HandleAXEvent(const blink::WebAXObject& obj, ui::AXEvent event); |
| 53 | 54 |
| 54 protected: | 55 protected: |
| 55 // Send queued events from the renderer to the browser. | 56 // Send queued events from the renderer to the browser. |
| 56 void SendPendingAccessibilityEvents(); | 57 void SendPendingAccessibilityEvents(); |
| 57 | 58 |
| 58 // Check the entire accessibility tree to see if any nodes have | 59 // Check the entire accessibility tree to see if any nodes have |
| 59 // changed location, by comparing their locations to the cached | 60 // changed location, by comparing their locations to the cached |
| 60 // versions. If any have moved, send an IPC with the new locations. | 61 // versions. If any have moved, send an IPC with the new locations. |
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| 95 | 96 |
| 96 // Set if we are waiting for an accessibility event ack. | 97 // Set if we are waiting for an accessibility event ack. |
| 97 bool ack_pending_; | 98 bool ack_pending_; |
| 98 | 99 |
| 99 DISALLOW_COPY_AND_ASSIGN(RendererAccessibilityComplete); | 100 DISALLOW_COPY_AND_ASSIGN(RendererAccessibilityComplete); |
| 100 }; | 101 }; |
| 101 | 102 |
| 102 #endif // CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_COMPLETE_H_ | 103 #endif // CONTENT_RENDERER_ACCESSIBILITY_RENDERER_ACCESSIBILITY_COMPLETE_H_ |
| 103 | 104 |
| 104 } // namespace content | 105 } // namespace content |
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