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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_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_ | 5 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_ |
6 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_ | 6 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include <map> | 10 #include <map> |
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68 // | 68 // |
69 //////////////////////////////////////////////////////////////////////////////// | 69 //////////////////////////////////////////////////////////////////////////////// |
70 class CONTENT_EXPORT BrowserAccessibility : public ui::AXPlatformNodeDelegate { | 70 class CONTENT_EXPORT BrowserAccessibility : public ui::AXPlatformNodeDelegate { |
71 public: | 71 public: |
72 // Creates a platform specific BrowserAccessibility. Ownership passes to the | 72 // Creates a platform specific BrowserAccessibility. Ownership passes to the |
73 // caller. | 73 // caller. |
74 static BrowserAccessibility* Create(); | 74 static BrowserAccessibility* Create(); |
75 | 75 |
76 virtual ~BrowserAccessibility(); | 76 virtual ~BrowserAccessibility(); |
77 | 77 |
78 static BrowserAccessibility* GetFromUniqueID(int32_t unique_id); | |
79 | |
80 // Called only once, immediately after construction. The constructor doesn't | 78 // Called only once, immediately after construction. The constructor doesn't |
81 // take any arguments because in the Windows subclass we use a special | 79 // take any arguments because in the Windows subclass we use a special |
82 // function to construct a COM object. | 80 // function to construct a COM object. |
83 virtual void Init(BrowserAccessibilityManager* manager, ui::AXNode* node); | 81 virtual void Init(BrowserAccessibilityManager* manager, ui::AXNode* node); |
84 | 82 |
85 // Called after the object is first initialized and again every time | 83 // Called after the object is first initialized and again every time |
86 // its data changes. | 84 // its data changes. |
87 virtual void OnDataChanged() {} | 85 virtual void OnDataChanged() {} |
88 | 86 |
89 virtual void OnSubtreeWillBeDeleted() {} | 87 virtual void OnSubtreeWillBeDeleted() {} |
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200 // Subclasses should override this to support platform reference counting. | 198 // Subclasses should override this to support platform reference counting. |
201 virtual void NativeReleaseReference(); | 199 virtual void NativeReleaseReference(); |
202 | 200 |
203 // | 201 // |
204 // Accessors | 202 // Accessors |
205 // | 203 // |
206 | 204 |
207 BrowserAccessibilityManager* manager() const { return manager_; } | 205 BrowserAccessibilityManager* manager() const { return manager_; } |
208 bool instance_active() const { return node_ && manager_; } | 206 bool instance_active() const { return node_ && manager_; } |
209 ui::AXNode* node() const { return node_; } | 207 ui::AXNode* node() const { return node_; } |
210 int32_t unique_id() const { return unique_id_; } | |
211 | 208 |
212 // These access the internal accessibility tree, which doesn't necessarily | 209 // These access the internal accessibility tree, which doesn't necessarily |
213 // reflect the accessibility tree that should be exposed on each platform. | 210 // reflect the accessibility tree that should be exposed on each platform. |
214 // Use PlatformChildCount and PlatformGetChild to implement platform | 211 // Use PlatformChildCount and PlatformGetChild to implement platform |
215 // accessibility APIs. | 212 // accessibility APIs. |
216 uint32_t InternalChildCount() const; | 213 uint32_t InternalChildCount() const; |
217 BrowserAccessibility* InternalGetChild(uint32_t child_index) const; | 214 BrowserAccessibility* InternalGetChild(uint32_t child_index) const; |
218 BrowserAccessibility* InternalGetParent() const; | 215 BrowserAccessibility* InternalGetParent() const; |
219 | 216 |
220 BrowserAccessibility* PlatformGetParent() const; | 217 BrowserAccessibility* PlatformGetParent() const; |
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367 // special character in the place of every embedded object instead of its | 364 // special character in the place of every embedded object instead of its |
368 // text, depending on the platform. | 365 // text, depending on the platform. |
369 base::string16 GetInnerText() const; | 366 base::string16 GetInnerText() const; |
370 | 367 |
371 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibility); | 368 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibility); |
372 }; | 369 }; |
373 | 370 |
374 } // namespace content | 371 } // namespace content |
375 | 372 |
376 #endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_ | 373 #endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_H_ |
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