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1 /*
2  * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
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  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
20  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23  */
24 
25 #ifndef WebView_h
26 #define WebView_h
27 
28 #include "IntRect.h"
29 #include "OwnPtr.h"
30 #include "PassRefPtr.h"
31 
32 namespace WTF {
33 class String;
34 }
35 
36 namespace WebCore {
37 class Frame;
38 class Page;
39 class FrameView;
40 class HTMLFrameOwnerElement;
41 class KURL;
42 class ResourceRequest;
43 }
44 
45 class WebView {
46 public:
47     enum Features {
48         NoFeature = 0,
49         EnableDoubleBuffering = 1 << 0
50     };
51 
52     WebView(HWND hwnd, unsigned features = EnableDoubleBuffering);
53     ~WebView();
54 
55     static void initialize(HINSTANCE instanceHandle);
56     static void cleanup();
57 
windowHandle()58     HWND windowHandle() const { return m_windowHandle; }
frame()59     WebCore::Frame* frame() const { return m_frame; }
page()60     WebCore::Page* page() const { return m_page; }
61     WebCore::FrameView* view() const;
62 
63     void load(LPCWSTR url);
64     void load(const WTF::String &url);
65     void load(const WebCore::ResourceRequest &request);
66     void reload();
67     void stop();
68 
69     void frameRect(RECT* rect) const;
70 
71     PassRefPtr<WebCore::Frame> createFrame(const WebCore::KURL&, const WTF::String&, WebCore::HTMLFrameOwnerElement*, const WTF::String&, bool, int, int);
72 
73     // JavaScript Dialog
74     void runJavaScriptAlert(const WTF::String& message);
75     bool runJavaScriptConfirm(const WTF::String& message);
76     bool runJavaScriptPrompt(const WTF::String& message, const WTF::String& defaultValue, WTF::String& result);
77 
78 private:
79     static LRESULT CALLBACK webViewWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
80     LRESULT wndProc(HWND, UINT, WPARAM, LPARAM);
81 
82     bool handlePaint(HWND hWnd);
83     bool handleMouseEvent(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
84     bool handleMouseWheel(HWND hWnd, WPARAM wParam, LPARAM lParam, bool isHorizontal);
85     bool handleKeyDown(WPARAM virtualKeyCode, LPARAM keyData, bool systemKeyDown);
86     bool handleKeyPress(WPARAM charCode, LPARAM keyData, bool systemKeyDown);
87     bool handleKeyUp(WPARAM virtualKeyCode, LPARAM keyData, bool systemKeyDown);
88 
89     void paint(HDC hDC, const WebCore::IntRect& clipRect);
90 
91     WebCore::Frame* m_frame;
92     WebCore::Page* m_page;
93     HWND m_parentWindowHandle;
94     HWND m_windowHandle;
95     bool m_enableDoubleBuffer;
96     OwnPtr<HDC> m_doubleBufferDC;
97     OwnPtr<HBITMAP> m_doubleBufferBitmap;
98 };
99 
100 #endif // WebView_h
101