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Side by Side Diff: content/browser/accessibility/browser_accessibility_state_impl.h

Issue 145283003: Switch AccessibilityMode to be a bitmap (Closed) Base URL: https://chromium.googlesource.com/chromium/src@enable
Patch Set: Created 6 years, 11 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_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"
11 #include "base/compiler_specific.h" 11 #include "base/compiler_specific.h"
12 #include "base/memory/singleton.h" 12 #include "base/memory/singleton.h"
13 #include "content/common/view_message_enums.h"
14 #include "content/public/browser/browser_accessibility_state.h" 13 #include "content/public/browser/browser_accessibility_state.h"
15 14
16 namespace content { 15 namespace content {
17 16
18 // The BrowserAccessibilityState class is used to determine if Chrome should be 17 // The BrowserAccessibilityState class is used to determine if Chrome should be
19 // customized for users with assistive technology, such as screen readers. We 18 // customized for users with assistive technology, such as screen readers. We
20 // modify the behavior of certain user interfaces to provide a better experience 19 // modify the behavior of certain user interfaces to provide a better experience
21 // for screen reader users. The way we detect a screen reader program is 20 // for screen reader users. The way we detect a screen reader program is
22 // different for each platform. 21 // different for each platform.
23 // 22 //
(...skipping 17 matching lines...) Expand all
41 static BrowserAccessibilityStateImpl* GetInstance(); 40 static BrowserAccessibilityStateImpl* GetInstance();
42 41
43 virtual void EnableAccessibility() OVERRIDE; 42 virtual void EnableAccessibility() OVERRIDE;
44 virtual void DisableAccessibility() OVERRIDE; 43 virtual void DisableAccessibility() OVERRIDE;
45 virtual void OnScreenReaderDetected() OVERRIDE; 44 virtual void OnScreenReaderDetected() OVERRIDE;
46 virtual bool IsAccessibleBrowser() OVERRIDE; 45 virtual bool IsAccessibleBrowser() OVERRIDE;
47 virtual void AddHistogramCallback(base::Closure callback) OVERRIDE; 46 virtual void AddHistogramCallback(base::Closure callback) OVERRIDE;
48 47
49 virtual void UpdateHistogramsForTesting() OVERRIDE; 48 virtual void UpdateHistogramsForTesting() OVERRIDE;
50 49
51 AccessibilityMode accessibility_mode() const { return accessibility_mode_; }; 50 unsigned int accessibility_mode() const { return accessibility_mode_; };
52 void SetAccessibilityMode(AccessibilityMode mode); 51 void SetAccessibilityMode(unsigned int mode);
53 52 void SetRendererAccessibilityMode(bool on);
54 private: 53 private:
55 friend class base::RefCountedThreadSafe<BrowserAccessibilityStateImpl>; 54 friend class base::RefCountedThreadSafe<BrowserAccessibilityStateImpl>;
56 friend struct DefaultSingletonTraits<BrowserAccessibilityStateImpl>; 55 friend struct DefaultSingletonTraits<BrowserAccessibilityStateImpl>;
57 56
58 // Called a short while after startup to allow time for the accessibility 57 // Called a short while after startup to allow time for the accessibility
59 // state to be determined. Updates histograms with the current state. 58 // state to be determined. Updates histograms with the current state.
60 void UpdateHistograms(); 59 void UpdateHistograms();
61 60
62 // Leaky singleton, destructor generally won't be called. 61 // Leaky singleton, destructor generally won't be called.
63 virtual ~BrowserAccessibilityStateImpl(); 62 virtual ~BrowserAccessibilityStateImpl();
64 63
65 void UpdatePlatformSpecificHistograms(); 64 void UpdatePlatformSpecificHistograms();
66 65
67 AccessibilityMode accessibility_mode_; 66 unsigned int accessibility_mode_;
68 67
69 std::vector<base::Closure> histogram_callbacks_; 68 std::vector<base::Closure> histogram_callbacks_;
70 69
71 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityStateImpl); 70 DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityStateImpl);
72 }; 71 };
73 72
74 } // namespace content 73 } // namespace content
75 74
76 #endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_STATE_IMPL_H_ 75 #endif // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_STATE_IMPL_H_
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