ash/caps_lock_delegate.h

   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
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_CAPS_LOCK_DELEGATE_H_
   6 #define ASH_CAPS_LOCK_DELEGATE_H_
   7
   8 #include "ash/ash_export.h"
   9
  10 namespace ash {
  11
  12 // Delegate for controlling Caps Lock.
  13 class ASH_EXPORT CapsLockDelegate {
  14  public:
  15   virtual ~CapsLockDelegate() {}
  16
  17   // Returns true if caps lock is enabled.
  18   virtual bool IsCapsLockEnabled() const = 0;
  19
  20   // Sets the caps lock state to |enabled|.
  21   // The state change can occur asynchronously and calling IsCapsLockEnabled
  22   // just after this may return the old state.
  23   virtual void SetCapsLockEnabled(bool enabled) = 0;
  24
  25   // Toggles the caps lock state.
  26   // The state change can occur asynchronously and calling IsCapsLockEnabled
  27   // just after this may return the old state.
  28   virtual void ToggleCapsLock() = 0;
  29 };
  30
  31 }  // namespace ash
  32
  33 #endif  // ASH_CAPS_LOCK_DELEGATE_H_