/*

 * Copyright (C) 2007 Apple Inc.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * 1.  Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer. 

 * 2.  Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution. 

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission. 

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef WebNodeHighlight_h

#define WebNodeHighlight_h

#pragma warning(push, 0)

#include <WebCore/IntRect.h>

#pragma warning(pop)

#include <windows.h>

class WebNodeHighlight {

public:

    WebNodeHighlight(HWND webView);

    ~WebNodeHighlight();

    void highlight(const WebCore::IntRect&);

    void hide();

    void updateWindow();

    bool visible() const;

private:

    void removeSubclass();

    HWND m_webView;

    HWND m_subclassedWindow;

    HWND m_overlay;

    WebCore::IntRect m_rect;

    WNDPROC m_originalWndProc;

    friend static LRESULT CALLBACK OverlayWndProc(HWND, UINT, WPARAM, LPARAM);

    friend static LRESULT CALLBACK SubclassedWndProc(HWND, UINT, WPARAM, LPARAM);

};

#endif // !defined(WebNodeHighlight_h)