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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_EVENT_REWRITER_DELEGATE_H_
#define ASH_EVENT_REWRITER_DELEGATE_H_
namespace ui {
class KeyEvent;
class LocatedEvent;
} // namespace aura
namespace ash {
// Delegate for rewriting or filtering an event.
class EventRewriterDelegate {
public:
enum Action {
ACTION_REWRITE_EVENT,
ACTION_DROP_EVENT,
};
virtual ~EventRewriterDelegate() {}
// A derived class can do either of the following:
// 1) Just return ACTION_DROP_EVENT to drop the |event|.
// 2) Rewrite the |event| and return ACTION_REWRITE_EVENT.
virtual Action RewriteOrFilterKeyEvent(ui::KeyEvent* event) = 0;
virtual Action RewriteOrFilterLocatedEvent(ui::LocatedEvent* event) = 0;
};
} // namespace ash
#endif // ASH_EVENT_REWRITER_DELEGATE_H_
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