1 /*

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

     3  *

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

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  *

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

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

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

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

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

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

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

    15  *     from this software without specific prior written permission. 

    16  *

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

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

    19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

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

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

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

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

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

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

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

    27  */

    28 

    29 #ifndef WebNodeHighlight_h

    30 #define WebNodeHighlight_h

    31 

    32 #pragma warning(push, 0)

    33 #include <WebCore/IntRect.h>

    34 #pragma warning(pop)

    35 

    36 #include <windows.h>

    37 

    38 class WebNodeHighlight {

    39 public:

    40     WebNodeHighlight(HWND webView);

    41     ~WebNodeHighlight();

    42 

    43     void highlight(const WebCore::IntRect&);

    44     void hide();

    45 

    46     void updateWindow();

    47     bool visible() const;

    48 

    49 private:

    50     void removeSubclass();

    51 

    52     HWND m_webView;

    53     HWND m_subclassedWindow;

    54     HWND m_overlay;

    55 

    56     WebCore::IntRect m_rect;

    57 

    58     WNDPROC m_originalWndProc;

    59 

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

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

    62 };

    63 

    64 #endif // !defined(WebNodeHighlight_h)