ui/keyboard/keyboard_controller_observer.h

   1 // Copyright (c) 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 UI_KEYBOARD_KEYBOARD_CONTROLLER_OBSERVER_H_
   6 #define UI_KEYBOARD_KEYBOARD_CONTROLLER_OBSERVER_H_
   7
   8 #include "ui/keyboard/keyboard_export.h"
   9
  10 namespace gfx {
  11 class Rect;
  12 }
  13
  14 namespace keyboard {
  15
  16 // Observers to the KeyboardController are notified of significant events that
  17 // occur with the keyboard, such as the bounds or visiility changing.
  18 class KEYBOARD_EXPORT KeyboardControllerObserver {
  19  public:
  20   virtual ~KeyboardControllerObserver() {}
  21
  22   // Called when the keyboard bounds or visibility are about to change.
  23   virtual void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) = 0;
  24 };
  25
  26 }  // namespace keyboard
  27
  28 #endif  // UI_KEYBOARD_KEYBOARD_CONTROLLER_OBSERVER_H_