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/WindowMessageListener.h>
34#pragma warning(pop)
35
36#include <windows.h>
37
38class WebView;
39
40class WebNodeHighlight : WebCore::WindowMessageListener {
41public:
42    WebNodeHighlight(WebView*);
43    ~WebNodeHighlight();
44
45    void setShowsWhileWebViewIsVisible(bool);
46
47    bool isShowing() const;
48
49    void update();
50
51    void placeBehindWindow(HWND);
52
53private:
54    void show();
55    void hide();
56
57    bool isWebViewVisible() const;
58
59    virtual void windowReceivedMessage(HWND, UINT message, WPARAM, LPARAM);
60
61    void onWebViewShowWindow(bool showing);
62    void onWebViewWindowPosChanged(WINDOWPOS*);
63    void onRootWindowPosChanged(WINDOWPOS*);
64
65    WebView* m_inspectedWebView;
66    HWND m_inspectedWebViewWindow;
67    HWND m_overlay;
68    HWND m_observedWindow;
69    bool m_showsWhileWebViewIsVisible;
70
71    friend static LRESULT CALLBACK OverlayWndProc(HWND, UINT, WPARAM, LPARAM);
72};
73
74#endif // !defined(WebNodeHighlight_h)
75