PlatformWebViewWin.cpp revision 2daae5fd11344eaa88a0d92b0f6d65f8d2255c00 
1/*
2 * Copyright (C) 2010 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 * 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 INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "PlatformWebView.h"
27
28#include "WindowMessageObserver.h"
29
30namespace TestWebKitAPI {
31
32static const wchar_t* hostWindowClassName = L"org.WebKit.TestWebKitAPI.PlatformWebViewHostWindow";
33static const wchar_t* webViewPointerProperty = L"org.WebKit.TestWebKitAPI.PlatformWebView.InstancePointer";
34
35// These offsets come from rom <http://msdn.microsoft.com/en-us/library/ms646280(VS.85).aspx>.
36static const size_t repeatCountBitOffset = 0;
37static const size_t scanCodeBitOffset = 16;
38static const size_t contextCodeBitOffset = 29;
39static const size_t previousStateBitOffset = 30;
40static const size_t transitionStateBitOffset = 31;
41
42void PlatformWebView::registerWindowClass()
43{
44    static bool initialized;
45    if (initialized)
46        return;
47    initialized = true;
48
49    WNDCLASSEXW wndClass = {0};
50    wndClass.cbSize = sizeof(wndClass);
51    wndClass.style = CS_HREDRAW | CS_VREDRAW;
52    wndClass.lpfnWndProc = wndProc;
53    wndClass.hCursor = LoadCursor(0, IDC_ARROW);
54    wndClass.lpszClassName = hostWindowClassName;
55
56    ::RegisterClassExW(&wndClass);
57}
58
59PlatformWebView::PlatformWebView(WKContextRef contextRef, WKPageGroupRef pageGroupRef)
60    : m_parentWindowMessageObserver(0)
61{
62    registerWindowClass();
63
64    RECT viewRect = {0, 0, 800, 600};
65    m_window = CreateWindowExW(0, hostWindowClassName, L"TestWebKitAPI", WS_OVERLAPPEDWINDOW, viewRect.left, viewRect.top, viewRect.right, viewRect.bottom, 0, 0, 0, this);
66    m_view = WKViewCreate(viewRect, contextRef, pageGroupRef, m_window);
67}
68
69PlatformWebView::~PlatformWebView()
70{
71    ::DestroyWindow(m_window);
72    WKRelease(m_view);
73}
74
75WKPageRef PlatformWebView::page() const
76{
77    return WKViewGetPage(m_view);
78}
79
80void PlatformWebView::resizeTo(unsigned width, unsigned height)
81{
82    ::SetWindowPos(WKViewGetWindow(m_view), 0, 0, 0, width, height, SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOCOPYBITS);
83}
84
85void PlatformWebView::simulateSpacebarKeyPress()
86{
87    HWND window = WKViewGetWindow(m_view);
88
89    // These values match what happens when you press the spacebar in Notepad, as observed by Spy++.
90    ::SendMessageW(window, WM_KEYDOWN, VK_SPACE, (1 << repeatCountBitOffset) | (39 << scanCodeBitOffset));
91    ::SendMessageW(window, WM_CHAR, ' ', (1 << repeatCountBitOffset) | (39 << scanCodeBitOffset));
92    ::SendMessageW(window, WM_KEYUP, VK_SPACE, (1 << repeatCountBitOffset) | (39 << scanCodeBitOffset) | (1 << previousStateBitOffset) | (1 << transitionStateBitOffset));
93}
94
95void PlatformWebView::simulateAKeyDown()
96{
97    HWND window = WKViewGetWindow(m_view);
98
99    // These values match what happens when you press the 'A' key in Notepad, as observed by Spy++.
100    ::SendMessageW(window, WM_KEYDOWN, 'A', (1 << repeatCountBitOffset) | (30 << scanCodeBitOffset));
101}
102
103void PlatformWebView::simulateAltKeyPress()
104{
105    HWND window = WKViewGetWindow(m_view);
106
107    // These values match what happens when you press the Alt key in Notepad, as observed by Spy++.
108    ::SendMessageW(window, WM_SYSKEYDOWN, VK_MENU, (1 << repeatCountBitOffset) | (38 << scanCodeBitOffset) | (1 << contextCodeBitOffset));
109    ::SendMessageW(window, WM_SYSKEYUP, VK_MENU, (1 << repeatCountBitOffset) | (38 << scanCodeBitOffset) | (1 << previousStateBitOffset) | (1 << transitionStateBitOffset));
110}
111
112void PlatformWebView::simulateRightClick(unsigned x, unsigned y)
113{
114    HWND window = WKViewGetWindow(m_view);
115
116    ::SendMessageW(window, WM_RBUTTONDOWN, 0, MAKELPARAM(x, y));
117    ::SendMessageW(window, WM_RBUTTONUP, 0, MAKELPARAM(x, y));
118}
119
120LRESULT PlatformWebView::wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
121{
122    PlatformWebView* webView;
123    if (message == WM_CREATE) {
124        CREATESTRUCT* createStruct = reinterpret_cast<CREATESTRUCT*>(lParam);
125        webView = static_cast<PlatformWebView*>(createStruct->lpCreateParams);
126        ::SetPropW(hWnd, webViewPointerProperty, webView);
127    } else
128        webView = reinterpret_cast<PlatformWebView*>(::GetPropW(hWnd, webViewPointerProperty));
129
130    if (webView && webView->m_parentWindowMessageObserver)
131        webView->m_parentWindowMessageObserver->windowReceivedMessage(hWnd, message, wParam, lParam);
132
133    if (message == WM_NCDESTROY)
134        ::RemovePropW(hWnd, webViewPointerProperty);
135
136    return ::DefWindowProcW(hWnd, message, wParam, lParam);
137}
138
139} // namespace TestWebKitAPI
140