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// Copyright 2016 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 ASH_KEYBOARD_KEYBOARD_UI_H_
#define ASH_KEYBOARD_KEYBOARD_UI_H_
#include "ash/ash_export.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/observer_list.h"
namespace ash {
class KeyboardUIObserver;
// KeyboardUI wraps the appropriate keyboard ui depending upon whether ash is
// running in mus or non-mus.
class ASH_EXPORT KeyboardUI {
public:
virtual ~KeyboardUI();
static scoped_ptr<KeyboardUI> Create();
virtual void Show() = 0;
virtual void Hide() = 0;
// Returns true if the keyboard is enabled.
virtual bool IsEnabled() = 0;
void AddObserver(KeyboardUIObserver* observer);
void RemoveObserver(KeyboardUIObserver* observer);
// Applist also queries this for bounds. If app list remains in ash then
// we need to plumb bounds through here too.
protected:
KeyboardUI();
base::ObserverList<KeyboardUIObserver>* observers() { return &observers_; }
private:
base::ObserverList<KeyboardUIObserver> observers_;
};
} // namespace ash
#endif // ASH_KEYBOARD_KEYBOARD_UI_H_
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