A11y setting: mono audio UI

chrome/browser/chromeos/accessibility/accessibility_manager.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_
 
 #include <set>
 
 #include "ash/session/session_state_observer.h"
@@ skipping 25 matching lines @@
 
 class AccessibilityHighlightManager;
 
 enum AccessibilityNotificationType {
   ACCESSIBILITY_MANAGER_SHUTDOWN,
   ACCESSIBILITY_TOGGLE_HIGH_CONTRAST_MODE,
   ACCESSIBILITY_TOGGLE_LARGE_CURSOR,
   ACCESSIBILITY_TOGGLE_SCREEN_MAGNIFIER,
   ACCESSIBILITY_TOGGLE_SPOKEN_FEEDBACK,
   ACCESSIBILITY_TOGGLE_VIRTUAL_KEYBOARD,
+  ACCESSIBILITY_TOGGLE_MONO_AUDIO,
   ACCESSIBILITY_BRAILLE_DISPLAY_CONNECTION_STATE_CHANGED
 };
 
 struct AccessibilityStatusEventDetails {
   AccessibilityStatusEventDetails(
       AccessibilityNotificationType notification_type,
       bool enabled,
       ui::AccessibilityNotificationVisibility notify);
 
   AccessibilityStatusEventDetails(
@@ skipping 104 matching lines @@
   void SetAutoclickDelay(int delay_ms);
 
   // Returns the autoclick delay in milliseconds.
   int GetAutoclickDelay() const;
 
   // Enables or disables the virtual keyboard.
   void EnableVirtualKeyboard(bool enabled);
   // Returns true if the virtual keyboard is enabled, otherwise false.
   bool IsVirtualKeyboardEnabled();
 
+  // Enables or disables mono audio output.
+  void EnableMonoAudio(bool enabled);
+  // Returns true if mono audio output is enabled, otherwise false.
+  bool IsMonoAudioEnabled();
+
   // Invoked to enable or disable caret highlighting.
   void SetCaretHighlightEnabled(bool enabled);
 
   // Returns if caret highlighting is enabled.
   bool IsCaretHighlightEnabled() const;
 
   // Invoked to enable or disable cursor highlighting.
   void SetCursorHighlightEnabled(bool enabled);
 
   // Returns if cursor highlighting is enabled.
@@ skipping 93 matching lines @@
   void PostLoadChromeVox(Profile* profile);
   void PostUnloadChromeVox(Profile* profile);
 
   void UpdateLargeCursorFromPref();
   void UpdateStickyKeysFromPref();
   void UpdateSpokenFeedbackFromPref();
   void UpdateHighContrastFromPref();
   void UpdateAutoclickFromPref();
   void UpdateAutoclickDelayFromPref();
   void UpdateVirtualKeyboardFromPref();
+  void UpdateMonoAudioFromPref();
   void UpdateCaretHighlightFromPref();
   void UpdateCursorHighlightFromPref();
   void UpdateFocusHighlightFromPref();
   void UpdateSelectToSpeakFromPref();
   void UpdateSwitchAccessFromPref();
   void UpdateAccessibilityHighlightingFromPrefs();
 
   void CheckBrailleState();
   void ReceiveBrailleDisplayState(
       std::unique_ptr<extensions::api::braille_display_private::DisplayState>
@@ skipping 41 matching lines @@
   std::unique_ptr<PrefChangeRegistrar> pref_change_registrar_;
   std::unique_ptr<PrefChangeRegistrar> local_state_pref_change_registrar_;
   std::unique_ptr<ash::ScopedSessionStateObserver> session_state_observer_;
 
   PrefHandler large_cursor_pref_handler_;
   PrefHandler spoken_feedback_pref_handler_;
   PrefHandler high_contrast_pref_handler_;
   PrefHandler autoclick_pref_handler_;
   PrefHandler autoclick_delay_pref_handler_;
   PrefHandler virtual_keyboard_pref_handler_;
+  PrefHandler mono_audio_pref_handler_;
   PrefHandler caret_highlight_pref_handler_;
   PrefHandler cursor_highlight_pref_handler_;
   PrefHandler focus_highlight_pref_handler_;
   PrefHandler select_to_speak_pref_handler_;
   PrefHandler switch_access_pref_handler_;
 
   bool large_cursor_enabled_;
   bool sticky_keys_enabled_;
   bool spoken_feedback_enabled_;
   bool high_contrast_enabled_;
   bool autoclick_enabled_;
   int autoclick_delay_ms_;
   bool virtual_keyboard_enabled_;
+  bool mono_audio_enabled_;
   bool caret_highlight_enabled_;
   bool cursor_highlight_enabled_;
   bool focus_highlight_enabled_;
   bool select_to_speak_enabled_;
   bool switch_access_enabled_;
 
   ui::AccessibilityNotificationVisibility spoken_feedback_notification_;
 
   bool should_speak_chrome_vox_announcements_on_user_screen_;
 
@@ skipping 23 matching lines @@
       accessibility_highlight_manager_;
 
   base::WeakPtrFactory<AccessibilityManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AccessibilityManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_ACCESSIBILITY_ACCESSIBILITY_MANAGER_H_