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// Copyright (c) 2011 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 REMOTING_PROTOCOL_KEY_EVENT_TRACKER_H_
#define REMOTING_PROTOCOL_KEY_EVENT_TRACKER_H_
#include <set>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "remoting/protocol/input_stub.h"
namespace remoting {
namespace protocol {
// Filtering InputStub which tracks key press and release events before passing
// them on to |input_stub|, and can dispatch release events to |input_stub| for
// all currently-pressed keys when necessary.
class KeyEventTracker : public InputStub {
public:
KeyEventTracker(protocol::InputStub* input_stub);
virtual ~KeyEventTracker();
// Dispatch release events for all currently-pressed keys to the InputStub.
void ReleaseAllKeys();
// InputStub interface.
virtual void InjectKeyEvent(const KeyEvent& event) OVERRIDE;
virtual void InjectMouseEvent(const MouseEvent& event) OVERRIDE;
private:
protocol::InputStub* input_stub_;
std::set<int> pressed_keys_;
DISALLOW_COPY_AND_ASSIGN(KeyEventTracker);
};
} // namespace protocol
} // namespace remoting
#endif // REMOTING_PROTOCOL_KEY_EVENT_TRACKER_H_
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