File: keyboard_controller_observer.h

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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_KEYBOARD_KEYBOARD_CONTROLLER_OBSERVER_H_
#define UI_KEYBOARD_KEYBOARD_CONTROLLER_OBSERVER_H_

#include "ui/keyboard/keyboard_export.h"

namespace gfx {
class Rect;
}

namespace keyboard {

// Observers to the KeyboardController are notified of significant events that
// occur with the keyboard, such as the bounds or visiility changing.
class KEYBOARD_EXPORT KeyboardControllerObserver {
 public:
  virtual ~KeyboardControllerObserver() {}

  // Called when the keyboard bounds or visibility are about to change.
  virtual void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) = 0;
};

}  // namespace keyboard

#endif  // UI_KEYBOARD_KEYBOARD_CONTROLLER_OBSERVER_H_