win8/metro_driver/ime/ime_popup_observer.h

   1 // Copyright 2013 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 WIN8_METRO_DRIVER_IME_IME_POPUP_OBSERVER_H_
   6 #define WIN8_METRO_DRIVER_IME_IME_POPUP_OBSERVER_H_
   7
   8 namespace metro_driver {
   9
  10 // An observer interface implemented by objects that want to be informed when
  11 // an IME shows or hides its popup window.
  12 class ImePopupObserver {
  13  public:
  14   enum EventType {
  15     kPopupShown,
  16     kPopupHidden,
  17     kPopupUpdated,
  18   };
  19   virtual ~ImePopupObserver() {}
  20
  21   // Called whenever an IME's popup window is changed.
  22   virtual void OnImePopupChanged(EventType type) = 0;
  23 };
  24
  25 }  // namespace metro_driver
  26
  27 #endif  // WIN8_METRO_DRIVER_IME_IME_POPUP_OBSERVER_H_