ash/ime_control_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_IME_CONTROL_DELEGATE_H_
   6 #define ASH_IME_CONTROL_DELEGATE_H_
   7
   8 namespace ui {
   9 class Accelerator;
  10 }  // namespace ui
  11
  12 namespace ash {
  13
  14 // Delegate for controlling IME (input method editor).
  15 class ImeControlDelegate {
  16  public:
  17   virtual ~ImeControlDelegate() {}
  18
  19   // Changes the IME to what is listed next. This function do nothing if there
  20   // is only one IME is enabled.
  21   virtual void HandleNextIme() = 0;
  22
  23   // Changes the IME to previously selected one. If there is no previously
  24   // selected IMEs, chooses the next listed IME. This function returns false if
  25   // there is only one IME is enabled.
  26   virtual bool HandlePreviousIme(const ui::Accelerator& accelerator) = 0;
  27
  28   // Switches to another IME depending on the |accelerator|.
  29   virtual bool HandleSwitchIme(const ui::Accelerator& accelerator) = 0;
  30
  31   // Checks for special language anomalies and re-map the |accelerator|
  32   // accordingly.
  33   virtual ui::Accelerator RemapAccelerator(
  34       const ui::Accelerator& accelerator) = 0;
  35 };
  36
  37 }  // namespace ash
  38
  39 #endif  // ASH_IME_CONTROL_DELEGATE_H_