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_ 28