1 /*
2 * Copyright (c) 2008, 2009, Google 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 are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "Pasteboard.h"
33
34 #include "ClipboardUtilitiesChromium.h"
35 #include "Document.h"
36 #include "DocumentFragment.h"
37 #include "Element.h"
38 #include "Frame.h"
39 #include "HTMLNames.h"
40 #include "HTMLParserIdioms.h"
41 #include "Image.h"
42 #include "KURL.h"
43 #include "NativeImageSkia.h"
44 #include "PlatformBridge.h"
45 #include "Range.h"
46 #include "RenderImage.h"
47 #include "markup.h"
48
49 #if ENABLE(SVG)
50 #include "SVGNames.h"
51 #include "XLinkNames.h"
52 #endif
53
54 namespace WebCore {
55
generalPasteboard()56 Pasteboard* Pasteboard::generalPasteboard()
57 {
58 static Pasteboard* pasteboard = new Pasteboard;
59 return pasteboard;
60 }
61
Pasteboard()62 Pasteboard::Pasteboard()
63 : m_selectionMode(false)
64 {
65 }
66
clear()67 void Pasteboard::clear()
68 {
69 // The ScopedClipboardWriter class takes care of clearing the clipboard's
70 // previous contents.
71 }
72
isSelectionMode() const73 bool Pasteboard::isSelectionMode() const
74 {
75 return m_selectionMode;
76 }
77
setSelectionMode(bool selectionMode)78 void Pasteboard::setSelectionMode(bool selectionMode)
79 {
80 m_selectionMode = selectionMode;
81 }
82
writeSelection(Range * selectedRange,bool canSmartCopyOrDelete,Frame * frame)83 void Pasteboard::writeSelection(Range* selectedRange, bool canSmartCopyOrDelete, Frame* frame)
84 {
85 String html = createMarkup(selectedRange, 0, AnnotateForInterchange, false, AbsoluteURLs);
86 ExceptionCode ec = 0;
87 KURL url = selectedRange->startContainer(ec)->document()->url();
88 String plainText = frame->editor()->selectedText();
89 #if OS(WINDOWS)
90 replaceNewlinesWithWindowsStyleNewlines(plainText);
91 #endif
92 replaceNBSPWithSpace(plainText);
93
94 PlatformBridge::clipboardWriteSelection(html, url, plainText, canSmartCopyOrDelete);
95 }
96
writePlainText(const String & text)97 void Pasteboard::writePlainText(const String& text)
98 {
99 #if OS(WINDOWS)
100 String plainText(text);
101 replaceNewlinesWithWindowsStyleNewlines(plainText);
102 PlatformBridge::clipboardWritePlainText(plainText);
103 #else
104 PlatformBridge::clipboardWritePlainText(text);
105 #endif
106 }
107
writeURL(const KURL & url,const String & titleStr,Frame * frame)108 void Pasteboard::writeURL(const KURL& url, const String& titleStr, Frame* frame)
109 {
110 ASSERT(!url.isEmpty());
111
112 String title(titleStr);
113 if (title.isEmpty()) {
114 title = url.lastPathComponent();
115 if (title.isEmpty())
116 title = url.host();
117 }
118
119 PlatformBridge::clipboardWriteURL(url, title);
120 }
121
writeImage(Node * node,const KURL &,const String & title)122 void Pasteboard::writeImage(Node* node, const KURL&, const String& title)
123 {
124 ASSERT(node);
125 ASSERT(node->renderer());
126 ASSERT(node->renderer()->isImage());
127 RenderImage* renderer = toRenderImage(node->renderer());
128 CachedImage* cachedImage = renderer->cachedImage();
129 if (!cachedImage || cachedImage->errorOccurred())
130 return;
131 Image* image = cachedImage->image();
132 ASSERT(image);
133
134 NativeImagePtr bitmap = image->nativeImageForCurrentFrame();
135 if (!bitmap)
136 return;
137
138 // If the image is wrapped in a link, |url| points to the target of the
139 // link. This isn't useful to us, so get the actual image URL.
140 AtomicString urlString;
141 if (node->hasTagName(HTMLNames::imgTag) || node->hasTagName(HTMLNames::inputTag))
142 urlString = static_cast<Element*>(node)->getAttribute(HTMLNames::srcAttr);
143 #if ENABLE(SVG)
144 else if (node->hasTagName(SVGNames::imageTag))
145 urlString = static_cast<Element*>(node)->getAttribute(XLinkNames::hrefAttr);
146 #endif
147 else if (node->hasTagName(HTMLNames::embedTag) || node->hasTagName(HTMLNames::objectTag)) {
148 Element* element = static_cast<Element*>(node);
149 urlString = element->getAttribute(element->imageSourceAttributeName());
150 }
151 KURL url = urlString.isEmpty() ? KURL() : node->document()->completeURL(stripLeadingAndTrailingHTMLSpaces(urlString));
152
153 PlatformBridge::clipboardWriteImage(bitmap, url, title);
154 }
155
canSmartReplace()156 bool Pasteboard::canSmartReplace()
157 {
158 return PlatformBridge::clipboardIsFormatAvailable(PasteboardPrivate::WebSmartPasteFormat, m_selectionMode ? PasteboardPrivate::SelectionBuffer : PasteboardPrivate::StandardBuffer);
159 }
160
plainText(Frame * frame)161 String Pasteboard::plainText(Frame* frame)
162 {
163 return PlatformBridge::clipboardReadPlainText(m_selectionMode ? PasteboardPrivate::SelectionBuffer : PasteboardPrivate::StandardBuffer);
164 }
165
documentFragment(Frame * frame,PassRefPtr<Range> context,bool allowPlainText,bool & chosePlainText)166 PassRefPtr<DocumentFragment> Pasteboard::documentFragment(Frame* frame, PassRefPtr<Range> context, bool allowPlainText, bool& chosePlainText)
167 {
168 chosePlainText = false;
169 PasteboardPrivate::ClipboardBuffer buffer = m_selectionMode ? PasteboardPrivate::SelectionBuffer : PasteboardPrivate::StandardBuffer;
170
171 if (PlatformBridge::clipboardIsFormatAvailable(PasteboardPrivate::HTMLFormat, buffer)) {
172 String markup;
173 KURL srcURL;
174 PlatformBridge::clipboardReadHTML(buffer, &markup, &srcURL);
175
176 RefPtr<DocumentFragment> fragment =
177 createFragmentFromMarkup(frame->document(), markup, srcURL, FragmentScriptingNotAllowed);
178 if (fragment)
179 return fragment.release();
180 }
181
182 if (allowPlainText) {
183 String markup = PlatformBridge::clipboardReadPlainText(buffer);
184 if (!markup.isEmpty()) {
185 chosePlainText = true;
186
187 RefPtr<DocumentFragment> fragment =
188 createFragmentFromText(context.get(), markup);
189 if (fragment)
190 return fragment.release();
191 }
192 }
193
194 return 0;
195 }
196
197 } // namespace WebCore
198