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// Copyright (c) 2012 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_WM_KEY_REWRITER_EVENT_FILTER_
#define ASH_WM_KEY_REWRITER_EVENT_FILTER_
#pragma once
#include "ash/ash_export.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "ui/aura/event_filter.h"
namespace ash {
class KeyRewriterDelegate;
namespace internal {
// An event filter that rewrites or drops a key event.
class ASH_EXPORT KeyRewriterEventFilter : public aura::EventFilter {
public:
KeyRewriterEventFilter();
virtual ~KeyRewriterEventFilter();
void SetKeyRewriterDelegate(scoped_ptr<KeyRewriterDelegate> delegate);
private:
// Overridden from aura::EventFilter:
virtual bool PreHandleKeyEvent(aura::Window* target,
aura::KeyEvent* event) OVERRIDE;
virtual bool PreHandleMouseEvent(aura::Window* target,
aura::MouseEvent* event) OVERRIDE;
virtual ui::TouchStatus PreHandleTouchEvent(
aura::Window* target,
aura::TouchEvent* event) OVERRIDE;
virtual ui::GestureStatus PreHandleGestureEvent(
aura::Window* target,
aura::GestureEvent* event) OVERRIDE;
scoped_ptr<KeyRewriterDelegate> delegate_;
DISALLOW_COPY_AND_ASSIGN(KeyRewriterEventFilter);
};
} // namespace internal
} // namespace ash
#endif // ASH_WM_KEY_REWRITER_EVENT_FILTER_
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