1 /*
2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
3 * Copyright (C) 2007-2009 Torch Mobile, Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27
28 #include "config.h"
29 #include "Pasteboard.h"
30
31 #include "ClipboardUtilitiesWin.h"
32 #include "Document.h"
33 #include "DocumentFragment.h"
34 #include "Element.h"
35 #include "Frame.h"
36 #include "HitTestResult.h"
37 #include "Image.h"
38 #include "KURL.h"
39 #include "Page.h"
40 #include "Range.h"
41 #include "RenderImage.h"
42 #include "TextEncoding.h"
43 #include "WebCoreInstanceHandle.h"
44 #include "markup.h"
45 #include <wtf/text/CString.h>
46
47 namespace WebCore {
48
49 static UINT HTMLClipboardFormat = 0;
50 static UINT BookmarkClipboardFormat = 0;
51 static UINT WebSmartPasteFormat = 0;
52
53 extern HDC hScreenDC;
54
PasteboardOwnerWndProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam)55 static LRESULT CALLBACK PasteboardOwnerWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
56 {
57 LRESULT lresult = 0;
58 LONG longPtr = GetWindowLong(hWnd, 0);
59
60 switch (message) {
61 case WM_RENDERFORMAT:
62 // This message comes when SetClipboardData was sent a null data handle
63 // and now it's come time to put the data on the clipboard.
64 break;
65 case WM_RENDERALLFORMATS:
66 // This message comes when SetClipboardData was sent a null data handle
67 // and now this application is about to quit, so it must put data on
68 // the clipboard before it exits.
69 break;
70 case WM_DESTROY:
71 break;
72 default:
73 lresult = DefWindowProc(hWnd, message, wParam, lParam);
74 break;
75 }
76 return lresult;
77 }
78
generalPasteboard()79 Pasteboard* Pasteboard::generalPasteboard()
80 {
81 static Pasteboard* pasteboard = new Pasteboard;
82 return pasteboard;
83 }
84
Pasteboard()85 Pasteboard::Pasteboard()
86 {
87 // make a dummy HWND to be the Windows clipboard's owner
88 WNDCLASS wc = {0};
89 memset(&wc, 0, sizeof(wc));
90 wc.lpfnWndProc = PasteboardOwnerWndProc;
91 wc.hInstance = WebCore::instanceHandle();
92 wc.lpszClassName = L"PasteboardOwnerWindowClass";
93 ::RegisterClass(&wc);
94
95 m_owner = ::CreateWindow(L"PasteboardOwnerWindowClass", L"PasteboardOwnerWindow", 0, 0, 0, 0, 0,
96 HWND_MESSAGE, 0, 0, 0);
97
98 HTMLClipboardFormat = ::RegisterClipboardFormat(L"HTML Format");
99 BookmarkClipboardFormat = ::RegisterClipboardFormat(L"UniformResourceLocatorW");
100 WebSmartPasteFormat = ::RegisterClipboardFormat(L"WebKit Smart Paste Format");
101 }
102
clear()103 void Pasteboard::clear()
104 {
105 if (::OpenClipboard(m_owner)) {
106 ::EmptyClipboard();
107 ::CloseClipboard();
108 }
109 }
110
writeSelection(Range * selectedRange,bool canSmartCopyOrDelete,Frame * frame)111 void Pasteboard::writeSelection(Range* selectedRange, bool canSmartCopyOrDelete, Frame* frame)
112 {
113 clear();
114
115 // Put CF_HTML format on the pasteboard
116 if (::OpenClipboard(m_owner)) {
117 ExceptionCode ec = 0;
118 Vector<char> data;
119 markupToCF_HTML(createMarkup(selectedRange, 0, AnnotateForInterchange), selectedRange->startContainer(ec)->document()->url(), data);
120 HGLOBAL cbData = createGlobalData(data);
121 if (!::SetClipboardData(HTMLClipboardFormat, cbData))
122 ::GlobalFree(cbData);
123 ::CloseClipboard();
124 }
125
126 // Put plain string on the pasteboard. CF_UNICODETEXT covers CF_TEXT as well
127 String str = frame->selectedText();
128 replaceNewlinesWithWindowsStyleNewlines(str);
129 replaceNBSPWithSpace(str);
130 if (::OpenClipboard(m_owner)) {
131 HGLOBAL cbData = createGlobalData(str);
132 if (!::SetClipboardData(CF_UNICODETEXT, cbData))
133 ::GlobalFree(cbData);
134 ::CloseClipboard();
135 }
136
137 // enable smart-replacing later on by putting dummy data on the pasteboard
138 if (canSmartCopyOrDelete) {
139 if (::OpenClipboard(m_owner)) {
140 ::SetClipboardData(WebSmartPasteFormat, 0);
141 ::CloseClipboard();
142 }
143 }
144 }
145
writePlainText(const String & text)146 void Pasteboard::writePlainText(const String& text)
147 {
148 clear();
149
150 // Put plain string on the pasteboard. CF_UNICODETEXT covers CF_TEXT as well
151 String str = text;
152 replaceNewlinesWithWindowsStyleNewlines(str);
153 if (::OpenClipboard(m_owner)) {
154 HGLOBAL cbData = createGlobalData(str);
155 if (!::SetClipboardData(CF_UNICODETEXT, cbData))
156 ::GlobalFree(cbData);
157 ::CloseClipboard();
158 }
159 }
160
writeURL(const KURL & url,const String & titleStr,Frame * frame)161 void Pasteboard::writeURL(const KURL& url, const String& titleStr, Frame* frame)
162 {
163 ASSERT(!url.isEmpty());
164
165 clear();
166
167 String title(titleStr);
168 if (title.isEmpty()) {
169 title = url.lastPathComponent();
170 if (title.isEmpty())
171 title = url.host();
172 }
173
174 // write to clipboard in format com.apple.safari.bookmarkdata to be able to paste into the bookmarks view with appropriate title
175 if (::OpenClipboard(m_owner)) {
176 HGLOBAL cbData = createGlobalData(url, title);
177 if (!::SetClipboardData(BookmarkClipboardFormat, cbData))
178 ::GlobalFree(cbData);
179 ::CloseClipboard();
180 }
181
182 // write to clipboard in format CF_HTML to be able to paste into contenteditable areas as a link
183 if (::OpenClipboard(m_owner)) {
184 Vector<char> data;
185 markupToCF_HTML(urlToMarkup(url, title), "", data);
186 HGLOBAL cbData = createGlobalData(data);
187 if (!::SetClipboardData(HTMLClipboardFormat, cbData))
188 ::GlobalFree(cbData);
189 ::CloseClipboard();
190 }
191
192 // bare-bones CF_UNICODETEXT support
193 if (::OpenClipboard(m_owner)) {
194 HGLOBAL cbData = createGlobalData(url.string());
195 if (!::SetClipboardData(CF_UNICODETEXT, cbData))
196 ::GlobalFree(cbData);
197 ::CloseClipboard();
198 }
199 }
200
writeImage(Node * node,const KURL &,const String &)201 void Pasteboard::writeImage(Node* node, const KURL&, const String&)
202 {
203 ASSERT(node && node->renderer() && node->renderer()->isImage());
204 RenderImage* renderer = static_cast<RenderImage*>(node->renderer());
205 CachedImage* cachedImage = static_cast<CachedImage*>(renderer->cachedImage());
206 ASSERT(cachedImage);
207 Image* image = cachedImage->image();
208 ASSERT(image);
209
210 clear();
211
212 RefPtr<SharedBitmap> sourceBmp = image->nativeImageForCurrentFrame();
213 if (!sourceBmp)
214 return;
215
216 IntRect rect(0, 0, sourceBmp->width(), sourceBmp->height());
217 BitmapInfo bmpInfo;
218 void* pixels;
219 HBITMAP resultBitmap = sourceBmp->clipBitmap(rect, true, bmpInfo, pixels);
220 if (!resultBitmap)
221 return;
222
223 if (::OpenClipboard(m_owner)) {
224 ::SetClipboardData(CF_BITMAP, resultBitmap);
225 ::CloseClipboard();
226 } else
227 DeleteObject(resultBitmap);
228 }
229
canSmartReplace()230 bool Pasteboard::canSmartReplace()
231 {
232 return ::IsClipboardFormatAvailable(WebSmartPasteFormat);
233 }
234
plainText(Frame * frame)235 String Pasteboard::plainText(Frame* frame)
236 {
237 if (::IsClipboardFormatAvailable(CF_UNICODETEXT) && ::OpenClipboard(m_owner)) {
238 HANDLE cbData = ::GetClipboardData(CF_UNICODETEXT);
239 if (cbData) {
240 UChar* buffer = (UChar*)GlobalLock(cbData);
241 String fromClipboard(buffer);
242 GlobalUnlock(cbData);
243 CloseClipboard();
244 return fromClipboard;
245 } else
246 CloseClipboard();
247 }
248
249 if (::IsClipboardFormatAvailable(CF_TEXT) && ::OpenClipboard(m_owner)) {
250 HANDLE cbData = ::GetClipboardData(CF_TEXT);
251 if (cbData) {
252 char* buffer = (char*)GlobalLock(cbData);
253 String fromClipboard(buffer);
254 GlobalUnlock(cbData);
255 CloseClipboard();
256 return fromClipboard;
257 } else
258 CloseClipboard();
259 }
260
261 return String();
262 }
263
documentFragment(Frame * frame,PassRefPtr<Range> context,bool allowPlainText,bool & chosePlainText)264 PassRefPtr<DocumentFragment> Pasteboard::documentFragment(Frame* frame, PassRefPtr<Range> context, bool allowPlainText, bool& chosePlainText)
265 {
266 chosePlainText = false;
267
268 if (::IsClipboardFormatAvailable(HTMLClipboardFormat) && ::OpenClipboard(m_owner)) {
269 // get data off of clipboard
270 HANDLE cbData = ::GetClipboardData(HTMLClipboardFormat);
271 if (cbData) {
272 SIZE_T dataSize = ::GlobalSize(cbData);
273 String cf_html(UTF8Encoding().decode((char*)GlobalLock(cbData), dataSize));
274 GlobalUnlock(cbData);
275 CloseClipboard();
276
277 PassRefPtr<DocumentFragment> fragment = fragmentFromCF_HTML(frame->document(), cf_html);
278 if (fragment)
279 return fragment;
280 } else
281 CloseClipboard();
282 }
283
284 if (allowPlainText && IsClipboardFormatAvailable(CF_UNICODETEXT)) {
285 chosePlainText = true;
286 if (OpenClipboard(m_owner)) {
287 HANDLE cbData = GetClipboardData(CF_UNICODETEXT);
288 if (cbData) {
289 UChar* buffer = (UChar*)GlobalLock(cbData);
290 String str(buffer);
291 GlobalUnlock(cbData);
292 CloseClipboard();
293 RefPtr<DocumentFragment> fragment = createFragmentFromText(context.get(), str);
294 if (fragment)
295 return fragment.release();
296 } else
297 CloseClipboard();
298 }
299 }
300
301 if (allowPlainText && ::IsClipboardFormatAvailable(CF_TEXT)) {
302 chosePlainText = true;
303 if (::OpenClipboard(m_owner)) {
304 HANDLE cbData = ::GetClipboardData(CF_TEXT);
305 if (cbData) {
306 char* buffer = (char*)GlobalLock(cbData);
307 String str(buffer);
308 GlobalUnlock(cbData);
309 CloseClipboard();
310 RefPtr<DocumentFragment> fragment = createFragmentFromText(context.get(), str);
311 if (fragment)
312 return fragment.release();
313 } else
314 CloseClipboard();
315 }
316 }
317
318 return 0;
319 }
320
hasData()321 bool Pasteboard::hasData()
322 {
323 return hasDataInFormat(CF_UNICODETEXT) || hasDataInFormat(CF_TEXT);
324 }
325
hasDataInFormat(unsigned int format)326 bool Pasteboard::hasDataInFormat(unsigned int format)
327 {
328 return ::IsClipboardFormatAvailable(format);
329 }
330
331 } // namespace WebCore
332