1 /* 2 * Copyright (C) 2006 Zack Rusin <zack (at) kde.org> 3 * Copyright (C) 2007 Ryan Leavengood <leavengood (at) gmail.com> 4 * Copyright (C) 2010 Stephan Amus <superstippi (at) gmx.de> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 16 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 19 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 23 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include "config.h" 29 #include "Pasteboard.h" 30 31 #include "DocumentFragment.h" 32 #include "Editor.h" 33 #include "Frame.h" 34 #include "KURL.h" 35 #include "NotImplemented.h" 36 #include "TextResourceDecoder.h" 37 #include "markup.h" 38 #include <support/Locker.h> 39 #include <Clipboard.h> 40 #include <Message.h> 41 #include <String.h> 42 #include <wtf/text/CString.h> 43 44 45 namespace WebCore { 46 47 Pasteboard::Pasteboard() 48 { 49 } 50 51 Pasteboard::~Pasteboard() 52 { 53 } 54 55 Pasteboard* Pasteboard::generalPasteboard() 56 { 57 static Pasteboard pasteboard; 58 return &pasteboard; 59 } 60 61 // BClipboard unfortunately does not derive from BLocker, so we cannot use BAutolock. 62 class AutoClipboardLocker { 63 public: 64 AutoClipboardLocker(BClipboard* clipboard) 65 : m_clipboard(clipboard) 66 , m_isLocked(clipboard && clipboard->Lock()) 67 { 68 } 69 70 ~AutoClipboardLocker() 71 { 72 if (m_isLocked) 73 m_clipboard->Unlock(); 74 } 75 76 bool isLocked() const 77 { 78 return m_isLocked; 79 } 80 81 private: 82 BClipboard* m_clipboard; 83 bool m_isLocked; 84 }; 85 86 void Pasteboard::writeSelection(Range* selectedRange, bool canSmartCopyOrDelete, Frame* frame) 87 { 88 AutoClipboardLocker locker(be_clipboard); 89 if (!locker.isLocked()) 90 return; 91 92 be_clipboard->Clear(); 93 BMessage* data = be_clipboard->Data(); 94 if (!data) 95 return; 96 97 BString string(frame->selectedText()); 98 99 // Replace unwanted representation of blank lines 100 const char* utf8BlankLine = "\302\240\n"; 101 string.ReplaceAll(utf8BlankLine, "\n"); 102 103 data->AddData("text/plain", B_MIME_TYPE, string.String(), string.Length()); 104 105 BString markupString(createMarkup(selectedRange, 0, AnnotateForInterchange, false, AbsoluteURLs)); 106 data->AddData("text/html", B_MIME_TYPE, markupString.String(), markupString.Length()); 107 108 be_clipboard->Commit(); 109 } 110 111 void Pasteboard::writePlainText(const String& text) 112 { 113 AutoClipboardLocker locker(be_clipboard); 114 if (!locker.isLocked()) 115 return; 116 117 be_clipboard->Clear(); 118 BMessage* data = be_clipboard->Data(); 119 if (!data) 120 return; 121 122 BString string(text); 123 data->AddData("text/plain", B_MIME_TYPE, string.String(), string.Length()); 124 be_clipboard->Commit(); 125 } 126 127 bool Pasteboard::canSmartReplace() 128 { 129 notImplemented(); 130 return false; 131 } 132 133 String Pasteboard::plainText(Frame* frame) 134 { 135 AutoClipboardLocker locker(be_clipboard); 136 if (!locker.isLocked()) 137 return String(); 138 139 BMessage* data = be_clipboard->Data(); 140 if (!data) 141 return String(); 142 143 const char* buffer = 0; 144 ssize_t bufferLength; 145 BString string; 146 if (data->FindData("text/plain", B_MIME_TYPE, reinterpret_cast<const void**>(&buffer), &bufferLength) == B_OK) 147 string.Append(buffer, bufferLength); 148 149 return string; 150 } 151 152 PassRefPtr<DocumentFragment> Pasteboard::documentFragment(Frame* frame, PassRefPtr<Range> context, 153 bool allowPlainText, bool& chosePlainText) 154 { 155 chosePlainText = false; 156 157 AutoClipboardLocker locker(be_clipboard); 158 if (!locker.isLocked()) 159 return 0; 160 161 BMessage* data = be_clipboard->Data(); 162 if (!data) 163 return 0; 164 165 const char* buffer = 0; 166 ssize_t bufferLength; 167 if (data->FindData("text/html", B_MIME_TYPE, reinterpret_cast<const void**>(&buffer), &bufferLength) == B_OK) { 168 RefPtr<TextResourceDecoder> decoder = TextResourceDecoder::create("text/plain", "UTF-8", true); 169 String html = decoder->decode(buffer, bufferLength); 170 html += decoder->flush(); 171 172 if (!html.isEmpty()) { 173 RefPtr<DocumentFragment> fragment = createFragmentFromMarkup(frame->document(), html, "", FragmentScriptingNotAllowed); 174 if (fragment) 175 return fragment.release(); 176 } 177 } 178 179 if (!allowPlainText) 180 return 0; 181 182 if (data->FindData("text/plain", B_MIME_TYPE, reinterpret_cast<const void**>(&buffer), &bufferLength) == B_OK) { 183 BString plainText(buffer, bufferLength); 184 185 chosePlainText = true; 186 RefPtr<DocumentFragment> fragment = createFragmentFromText(context.get(), plainText); 187 if (fragment) 188 return fragment.release(); 189 } 190 191 return 0; 192 } 193 194 void Pasteboard::writeURL(const KURL& url, const String&, Frame*) 195 { 196 AutoClipboardLocker locker(be_clipboard); 197 if (!locker.isLocked()) 198 return; 199 200 be_clipboard->Clear(); 201 202 BMessage* data = be_clipboard->Data(); 203 if (!data) 204 return; 205 206 BString string(url.string()); 207 data->AddData("text/plain", B_MIME_TYPE, string.String(), string.Length()); 208 be_clipboard->Commit(); 209 } 210 211 void Pasteboard::writeImage(Node*, const KURL&, const String&) 212 { 213 notImplemented(); 214 } 215 216 void Pasteboard::clear() 217 { 218 AutoClipboardLocker locker(be_clipboard); 219 if (!locker.isLocked()) 220 return; 221 222 be_clipboard->Clear(); 223 be_clipboard->Commit(); 224 } 225 226 } // namespace WebCore 227 228
