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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 CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_UTIL_H_ | 5 #ifndef CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_UTIL_H_ |
6 #define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_UTIL_H_ | 6 #define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_UTIL_H_ |
7 | 7 |
8 #include <string> | |
9 | |
10 #include "ash/magnifier/magnifier_constants.h" | |
11 #include "ash/shell_delegate.h" | |
12 #include "base/basictypes.h" | |
13 | |
14 class Browser; | 8 class Browser; |
15 | 9 |
16 namespace content { | |
17 class WebUI; | |
18 } | |
19 | |
20 namespace chromeos { | 10 namespace chromeos { |
21 namespace accessibility { | 11 namespace accessibility { |
22 | 12 |
23 struct AccessibilityStatusEventDetails { | |
24 AccessibilityStatusEventDetails( | |
25 bool enabled, ash::AccessibilityNotificationVisibility notify) | |
26 : enabled(enabled), | |
27 magnifier_type(ash::kDefaultMagnifierType), | |
28 notify(notify) {} | |
29 | |
30 AccessibilityStatusEventDetails( | |
31 bool enabled, | |
32 ash::MagnifierType magnifier_type, | |
33 ash::AccessibilityNotificationVisibility notify) | |
34 : enabled(enabled), | |
35 magnifier_type(magnifier_type), | |
36 notify(notify) {} | |
37 | |
38 bool enabled; | |
39 ash::MagnifierType magnifier_type; | |
40 ash::AccessibilityNotificationVisibility notify; | |
41 }; | |
42 | |
43 // Do any accessibility initialization that should happen once on startup. | |
44 void Initialize(); | |
45 | |
46 // Enables or disables spoken feedback. Enabling spoken feedback installs the | |
47 // ChromeVox component extension. If this is being called in a login/oobe | |
48 // login screen, pass the WebUI object in login_web_ui so that ChromeVox | |
49 // can be injected directly into that screen, otherwise it should be NULL. | |
50 void EnableSpokenFeedback(bool enabled, | |
51 content::WebUI* login_web_ui, | |
52 ash::AccessibilityNotificationVisibility notify); | |
53 | |
54 // Enables or disables the high contrast mode for Chrome. | |
55 void EnableHighContrast(bool enabled); | |
56 | |
57 // Enables or disable the virtual keyboard. | 13 // Enables or disable the virtual keyboard. |
58 void EnableVirtualKeyboard(bool enabled); | 14 void EnableVirtualKeyboard(bool enabled); |
59 | 15 |
60 // Toggles whether Chrome OS spoken feedback is on or off. See docs for | |
61 // EnableSpokenFeedback, above. | |
62 void ToggleSpokenFeedback(content::WebUI* login_web_ui, | |
63 ash::AccessibilityNotificationVisibility notify); | |
64 | |
65 // Speaks the specified string. | |
66 void Speak(const std::string& utterance); | |
67 | |
68 // Returns true if spoken feedback is enabled, or false if not. | |
69 bool IsSpokenFeedbackEnabled(); | |
70 | |
71 // Returns true if High Contrast is enabled, or false if not. | |
72 bool IsHighContrastEnabled(); | |
73 | |
74 // Returns true if the Virtual Keyboard is enabled, or false if not. | 16 // Returns true if the Virtual Keyboard is enabled, or false if not. |
75 bool IsVirtualKeyboardEnabled(); | 17 bool IsVirtualKeyboardEnabled(); |
76 | 18 |
77 // Speaks the given text if the accessibility pref is already set. | |
78 void MaybeSpeak(const std::string& utterance); | |
79 | |
80 // Shows the accessibility help tab on the browser. | 19 // Shows the accessibility help tab on the browser. |
81 void ShowAccessibilityHelp(Browser* browser); | 20 void ShowAccessibilityHelp(Browser* browser); |
82 | 21 |
83 } // namespace accessibility | 22 } // namespace accessibility |
84 } // namespace chromeos | 23 } // namespace chromeos |
85 | 24 |
86 #endif // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_UTIL_H_ | 25 #endif // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_UTIL_H_ |
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