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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_STATE_IMPL_H_ | 5 #ifndef CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_STATE_IMPL_H_ |
| 6 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_STATE_IMPL_H_ | 6 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_STATE_IMPL_H_ |
| 7 | 7 |
| 8 #include <vector> | 8 #include <vector> |
| 9 | 9 |
| 10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
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| 33 // improvement over reading defaults preference values (which has no callback | 33 // improvement over reading defaults preference values (which has no callback |
| 34 // mechanism). | 34 // mechanism). |
| 35 class CONTENT_EXPORT BrowserAccessibilityStateImpl | 35 class CONTENT_EXPORT BrowserAccessibilityStateImpl |
| 36 : public base::RefCountedThreadSafe<BrowserAccessibilityStateImpl>, | 36 : public base::RefCountedThreadSafe<BrowserAccessibilityStateImpl>, |
| 37 public BrowserAccessibilityState { | 37 public BrowserAccessibilityState { |
| 38 public: | 38 public: |
| 39 BrowserAccessibilityStateImpl(); | 39 BrowserAccessibilityStateImpl(); |
| 40 | 40 |
| 41 static BrowserAccessibilityStateImpl* GetInstance(); | 41 static BrowserAccessibilityStateImpl* GetInstance(); |
| 42 | 42 |
| 43 virtual void EnableAccessibility() OVERRIDE; | 43 virtual void EnableAccessibility() override; |
| 44 virtual void DisableAccessibility() OVERRIDE; | 44 virtual void DisableAccessibility() override; |
| 45 virtual void ResetAccessibilityMode() OVERRIDE; | 45 virtual void ResetAccessibilityMode() override; |
| 46 virtual void OnScreenReaderDetected() OVERRIDE; | 46 virtual void OnScreenReaderDetected() override; |
| 47 virtual bool IsAccessibleBrowser() OVERRIDE; | 47 virtual bool IsAccessibleBrowser() override; |
| 48 virtual void AddHistogramCallback(base::Closure callback) OVERRIDE; | 48 virtual void AddHistogramCallback(base::Closure callback) override; |
| 49 | 49 |
| 50 virtual void UpdateHistogramsForTesting() OVERRIDE; | 50 virtual void UpdateHistogramsForTesting() override; |
| 51 | 51 |
| 52 AccessibilityMode accessibility_mode() const { return accessibility_mode_; }; | 52 AccessibilityMode accessibility_mode() const { return accessibility_mode_; }; |
| 53 | 53 |
| 54 // Adds the given accessibility mode to the current accessibility mode bitmap. | 54 // Adds the given accessibility mode to the current accessibility mode bitmap. |
| 55 void AddAccessibilityMode(AccessibilityMode mode); | 55 void AddAccessibilityMode(AccessibilityMode mode); |
| 56 | 56 |
| 57 // Removes the given accessibility mode from the current accessibility mode | 57 // Removes the given accessibility mode from the current accessibility mode |
| 58 // bitmap, managing the bits that are shared with other modes such that a | 58 // bitmap, managing the bits that are shared with other modes such that a |
| 59 // bit will only be turned off when all modes that depend on it have been | 59 // bit will only be turned off when all modes that depend on it have been |
| 60 // removed. | 60 // removed. |
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| 83 AccessibilityMode accessibility_mode_; | 83 AccessibilityMode accessibility_mode_; |
| 84 | 84 |
| 85 std::vector<base::Closure> histogram_callbacks_; | 85 std::vector<base::Closure> histogram_callbacks_; |
| 86 | 86 |
| 87 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityStateImpl); | 87 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityStateImpl); |
| 88 }; | 88 }; |
| 89 | 89 |
| 90 } // namespace content | 90 } // namespace content |
| 91 | 91 |
| 92 #endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_STATE_IMPL_H_ | 92 #endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_STATE_IMPL_H_ |
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