| OLD | NEW |
|---|
| (Empty) |
| 1 /* | |
| 2 * Copyright (C) 2006, 2007, 2008 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 COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #include "config.h" | |
| 27 #include "core/dom/Clipboard.h" | |
| 28 | |
| 29 #include "HTMLNames.h" | |
| 30 #include "core/dom/DataObject.h" | |
| 31 #include "core/dom/DataTransferItem.h" | |
| 32 #include "core/dom/DataTransferItemList.h" | |
| 33 #include "core/editing/markup.h" | |
| 34 #include "core/fetch/ImageResource.h" | |
| 35 #include "core/fileapi/FileList.h" | |
| 36 #include "core/html/HTMLImageElement.h" | |
| 37 #include "core/frame/Frame.h" | |
| 38 #include "core/rendering/RenderImage.h" | |
| 39 #include "core/rendering/RenderObject.h" | |
| 40 #include "platform/DragImage.h" | |
| 41 #include "platform/MIMETypeRegistry.h" | |
| 42 #include "platform/clipboard/ClipboardMimeTypes.h" | |
| 43 #include "platform/clipboard/ClipboardUtilities.h" | |
| 44 | |
| 45 namespace WebCore { | |
| 46 | |
| 47 // These "conversion" methods are called by both WebCore and WebKit, and never m
ake sense to JS, so we don't | |
| 48 // worry about security for these. They don't allow access to the pasteboard any
way. | |
| 49 static DragOperation dragOpFromIEOp(const String& op) | |
| 50 { | |
| 51 // yep, it's really just this fixed set | |
| 52 if (op == "uninitialized") | |
| 53 return DragOperationEvery; | |
| 54 if (op == "none") | |
| 55 return DragOperationNone; | |
| 56 if (op == "copy") | |
| 57 return DragOperationCopy; | |
| 58 if (op == "link") | |
| 59 return DragOperationLink; | |
| 60 if (op == "move") | |
| 61 return (DragOperation)(DragOperationGeneric | DragOperationMove); | |
| 62 if (op == "copyLink") | |
| 63 return (DragOperation)(DragOperationCopy | DragOperationLink); | |
| 64 if (op == "copyMove") | |
| 65 return (DragOperation)(DragOperationCopy | DragOperationGeneric | DragOp
erationMove); | |
| 66 if (op == "linkMove") | |
| 67 return (DragOperation)(DragOperationLink | DragOperationGeneric | DragOp
erationMove); | |
| 68 if (op == "all") | |
| 69 return DragOperationEvery; | |
| 70 return DragOperationPrivate; // really a marker for "no conversion" | |
| 71 } | |
| 72 | |
| 73 static String IEOpFromDragOp(DragOperation op) | |
| 74 { | |
| 75 bool moveSet = !!((DragOperationGeneric | DragOperationMove) & op); | |
| 76 | |
| 77 if ((moveSet && (op & DragOperationCopy) && (op & DragOperationLink)) | |
| 78 || (op == DragOperationEvery)) | |
| 79 return "all"; | |
| 80 if (moveSet && (op & DragOperationCopy)) | |
| 81 return "copyMove"; | |
| 82 if (moveSet && (op & DragOperationLink)) | |
| 83 return "linkMove"; | |
| 84 if ((op & DragOperationCopy) && (op & DragOperationLink)) | |
| 85 return "copyLink"; | |
| 86 if (moveSet) | |
| 87 return "move"; | |
| 88 if (op & DragOperationCopy) | |
| 89 return "copy"; | |
| 90 if (op & DragOperationLink) | |
| 91 return "link"; | |
| 92 return "none"; | |
| 93 } | |
| 94 | |
| 95 // We provide the IE clipboard types (URL and Text), and the clipboard types spe
cified in the WHATWG Web Applications 1.0 draft | |
| 96 // see http://www.whatwg.org/specs/web-apps/current-work/ Section 6.3.5.3 | |
| 97 static String normalizeType(const String& type, bool* convertToURL = 0) | |
| 98 { | |
| 99 String cleanType = type.stripWhiteSpace().lower(); | |
| 100 if (cleanType == mimeTypeText || cleanType.startsWith(mimeTypeTextPlainEtc)) | |
| 101 return mimeTypeTextPlain; | |
| 102 if (cleanType == mimeTypeURL) { | |
| 103 if (convertToURL) | |
| 104 *convertToURL = true; | |
| 105 return mimeTypeTextURIList; | |
| 106 } | |
| 107 return cleanType; | |
| 108 } | |
| 109 | |
| 110 PassRefPtr<Clipboard> Clipboard::create(ClipboardType type, ClipboardAccessPolic
y policy, PassRefPtr<DataObject> dataObject) | |
| 111 { | |
| 112 return adoptRef(new Clipboard(type, policy , dataObject)); | |
| 113 } | |
| 114 | |
| 115 Clipboard::~Clipboard() | |
| 116 { | |
| 117 } | |
| 118 | |
| 119 void Clipboard::setDropEffect(const String &effect) | |
| 120 { | |
| 121 if (!isForDragAndDrop()) | |
| 122 return; | |
| 123 | |
| 124 // The attribute must ignore any attempts to set it to a value other than no
ne, copy, link, and move. | |
| 125 if (effect != "none" && effect != "copy" && effect != "link" && effect != "
move") | |
| 126 return; | |
| 127 | |
| 128 // FIXME: The spec actually allows this in all circumstances, even though th
ere's no point in | |
| 129 // setting the drop effect when this condition is not true. | |
| 130 if (canReadTypes()) | |
| 131 m_dropEffect = effect; | |
| 132 } | |
| 133 | |
| 134 void Clipboard::setEffectAllowed(const String &effect) | |
| 135 { | |
| 136 if (!isForDragAndDrop()) | |
| 137 return; | |
| 138 | |
| 139 if (dragOpFromIEOp(effect) == DragOperationPrivate) { | |
| 140 // This means that there was no conversion, and the effectAllowed that | |
| 141 // we are passed isn't a valid effectAllowed, so we should ignore it, | |
| 142 // and not set m_effectAllowed. | |
| 143 | |
| 144 // The attribute must ignore any attempts to set it to a value other tha
n | |
| 145 // none, copy, copyLink, copyMove, link, linkMove, move, all, and uninit
ialized. | |
| 146 return; | |
| 147 } | |
| 148 | |
| 149 | |
| 150 if (canWriteData()) | |
| 151 m_effectAllowed = effect; | |
| 152 } | |
| 153 | |
| 154 void Clipboard::clearData(const String& type) | |
| 155 { | |
| 156 if (!canWriteData()) | |
| 157 return; | |
| 158 | |
| 159 if (type.isNull()) | |
| 160 m_dataObject->clearAll(); | |
| 161 else | |
| 162 m_dataObject->clearData(normalizeType(type)); | |
| 163 } | |
| 164 | |
| 165 String Clipboard::getData(const String& type) const | |
| 166 { | |
| 167 if (!canReadData()) | |
| 168 return String(); | |
| 169 | |
| 170 bool convertToURL = false; | |
| 171 String data = m_dataObject->getData(normalizeType(type, &convertToURL)); | |
| 172 if (!convertToURL) | |
| 173 return data; | |
| 174 return convertURIListToURL(data); | |
| 175 } | |
| 176 | |
| 177 bool Clipboard::setData(const String& type, const String& data) | |
| 178 { | |
| 179 if (!canWriteData()) | |
| 180 return false; | |
| 181 | |
| 182 return m_dataObject->setData(normalizeType(type), data); | |
| 183 } | |
| 184 | |
| 185 // extensions beyond IE's API | |
| 186 Vector<String> Clipboard::types() const | |
| 187 { | |
| 188 Vector<String> types; | |
| 189 if (!canReadTypes()) | |
| 190 return types; | |
| 191 | |
| 192 ListHashSet<String> typesSet = m_dataObject->types(); | |
| 193 types.appendRange(typesSet.begin(), typesSet.end()); | |
| 194 return types; | |
| 195 } | |
| 196 | |
| 197 PassRefPtr<FileList> Clipboard::files() const | |
| 198 { | |
| 199 RefPtr<FileList> files = FileList::create(); | |
| 200 if (!canReadData()) | |
| 201 return files.release(); | |
| 202 | |
| 203 for (size_t i = 0; i < m_dataObject->length(); ++i) { | |
| 204 if (m_dataObject->item(i)->kind() == DataObjectItem::FileKind) { | |
| 205 RefPtr<Blob> blob = m_dataObject->item(i)->getAsFile(); | |
| 206 if (blob && blob->isFile()) | |
| 207 files->append(toFile(blob.get())); | |
| 208 } | |
| 209 } | |
| 210 | |
| 211 return files.release(); | |
| 212 } | |
| 213 | |
| 214 void Clipboard::setDragImage(Element* image, int x, int y, ExceptionState& excep
tionState) | |
| 215 { | |
| 216 if (!isForDragAndDrop()) | |
| 217 return; | |
| 218 | |
| 219 if (!image) { | |
| 220 exceptionState.throwTypeError("setDragImage: Invalid first argument"); | |
| 221 return; | |
| 222 } | |
| 223 IntPoint location(x, y); | |
| 224 if (image->hasTagName(HTMLNames::imgTag) && !image->inDocument()) | |
| 225 setDragImageResource(toHTMLImageElement(image)->cachedImage(), location)
; | |
| 226 else | |
| 227 setDragImageElement(image, location); | |
| 228 } | |
| 229 | |
| 230 void Clipboard::setDragImageResource(ImageResource* img, const IntPoint& loc) | |
| 231 { | |
| 232 setDragImage(img, 0, loc); | |
| 233 } | |
| 234 | |
| 235 void Clipboard::setDragImageElement(Node* node, const IntPoint& loc) | |
| 236 { | |
| 237 setDragImage(0, node, loc); | |
| 238 } | |
| 239 | |
| 240 PassOwnPtr<DragImage> Clipboard::createDragImage(IntPoint& loc, Frame* frame) co
nst | |
| 241 { | |
| 242 if (m_dragImageElement) { | |
| 243 loc = m_dragLoc; | |
| 244 return frame->nodeImage(m_dragImageElement.get()); | |
| 245 } | |
| 246 if (m_dragImage) { | |
| 247 loc = m_dragLoc; | |
| 248 return DragImage::create(m_dragImage->image()); | |
| 249 } | |
| 250 return nullptr; | |
| 251 } | |
| 252 | |
| 253 static ImageResource* getImageResource(Element* element) | |
| 254 { | |
| 255 // Attempt to pull ImageResource from element | |
| 256 ASSERT(element); | |
| 257 RenderObject* renderer = element->renderer(); | |
| 258 if (!renderer || !renderer->isImage()) | |
| 259 return 0; | |
| 260 | |
| 261 RenderImage* image = toRenderImage(renderer); | |
| 262 if (image->cachedImage() && !image->cachedImage()->errorOccurred()) | |
| 263 return image->cachedImage(); | |
| 264 | |
| 265 return 0; | |
| 266 } | |
| 267 | |
| 268 static void writeImageToDataObject(DataObject* dataObject, Element* element, con
st KURL& url) | |
| 269 { | |
| 270 // Shove image data into a DataObject for use as a file | |
| 271 ImageResource* cachedImage = getImageResource(element); | |
| 272 if (!cachedImage || !cachedImage->imageForRenderer(element->renderer()) || !
cachedImage->isLoaded()) | |
| 273 return; | |
| 274 | |
| 275 SharedBuffer* imageBuffer = cachedImage->imageForRenderer(element->renderer(
))->data(); | |
| 276 if (!imageBuffer || !imageBuffer->size()) | |
| 277 return; | |
| 278 | |
| 279 String imageExtension = cachedImage->image()->filenameExtension(); | |
| 280 ASSERT(!imageExtension.isEmpty()); | |
| 281 | |
| 282 // Determine the filename for the file contents of the image. | |
| 283 String filename = cachedImage->response().suggestedFilename(); | |
| 284 if (filename.isEmpty()) | |
| 285 filename = url.lastPathComponent(); | |
| 286 | |
| 287 String fileExtension; | |
| 288 if (filename.isEmpty()) { | |
| 289 filename = element->getAttribute(HTMLNames::altAttr); | |
| 290 } else { | |
| 291 // Strip any existing extension. Assume that alt text is usually not a f
ilename. | |
| 292 int extensionIndex = filename.reverseFind('.'); | |
| 293 if (extensionIndex != -1) { | |
| 294 fileExtension = filename.substring(extensionIndex + 1); | |
| 295 filename.truncate(extensionIndex); | |
| 296 } | |
| 297 } | |
| 298 | |
| 299 if (!fileExtension.isEmpty() && fileExtension != imageExtension) { | |
| 300 String imageMimeType = MIMETypeRegistry::getMIMETypeForExtension(imageEx
tension); | |
| 301 ASSERT(imageMimeType.startsWith("image/")); | |
| 302 // Use the file extension only if it has imageMimeType: it's untrustwort
hy otherwise. | |
| 303 if (imageMimeType == MIMETypeRegistry::getMIMETypeForExtension(fileExten
sion)) | |
| 304 imageExtension = fileExtension; | |
| 305 } | |
| 306 | |
| 307 imageExtension = "." + imageExtension; | |
| 308 validateFilename(filename, imageExtension); | |
| 309 | |
| 310 dataObject->addSharedBuffer(filename + imageExtension, imageBuffer); | |
| 311 } | |
| 312 | |
| 313 void Clipboard::declareAndWriteDragImage(Element* element, const KURL& url, cons
t String& title) | |
| 314 { | |
| 315 if (!m_dataObject) | |
| 316 return; | |
| 317 | |
| 318 m_dataObject->setURLAndTitle(url, title); | |
| 319 | |
| 320 // Write the bytes in the image to the file format. | |
| 321 writeImageToDataObject(m_dataObject.get(), element, url); | |
| 322 | |
| 323 // Put img tag on the clipboard referencing the image | |
| 324 m_dataObject->setData(mimeTypeTextHTML, createMarkup(element, IncludeNode, 0
, ResolveAllURLs)); | |
| 325 } | |
| 326 | |
| 327 void Clipboard::writeURL(const KURL& url, const String& title) | |
| 328 { | |
| 329 if (!m_dataObject) | |
| 330 return; | |
| 331 ASSERT(!url.isEmpty()); | |
| 332 | |
| 333 m_dataObject->setURLAndTitle(url, title); | |
| 334 | |
| 335 // The URL can also be used as plain text. | |
| 336 m_dataObject->setData(mimeTypeTextPlain, url.string()); | |
| 337 | |
| 338 // The URL can also be used as an HTML fragment. | |
| 339 m_dataObject->setHTMLAndBaseURL(urlToMarkup(url, title), url); | |
| 340 } | |
| 341 | |
| 342 void Clipboard::writeRange(Range* selectedRange, Frame* frame) | |
| 343 { | |
| 344 ASSERT(selectedRange); | |
| 345 if (!m_dataObject) | |
| 346 return; | |
| 347 | |
| 348 m_dataObject->setHTMLAndBaseURL(createMarkup(selectedRange, 0, AnnotateForIn
terchange, false, ResolveNonLocalURLs), frame->document()->url()); | |
| 349 | |
| 350 String str = frame->selectedTextForClipboard(); | |
| 351 #if OS(WIN) | |
| 352 replaceNewlinesWithWindowsStyleNewlines(str); | |
| 353 #endif | |
| 354 replaceNBSPWithSpace(str); | |
| 355 m_dataObject->setData(mimeTypeTextPlain, str); | |
| 356 } | |
| 357 | |
| 358 void Clipboard::writePlainText(const String& text) | |
| 359 { | |
| 360 if (!m_dataObject) | |
| 361 return; | |
| 362 | |
| 363 String str = text; | |
| 364 #if OS(WIN) | |
| 365 replaceNewlinesWithWindowsStyleNewlines(str); | |
| 366 #endif | |
| 367 replaceNBSPWithSpace(str); | |
| 368 | |
| 369 m_dataObject->setData(mimeTypeTextPlain, str); | |
| 370 } | |
| 371 | |
| 372 bool Clipboard::hasData() | |
| 373 { | |
| 374 ASSERT(isForDragAndDrop()); | |
| 375 | |
| 376 return m_dataObject->length() > 0; | |
| 377 } | |
| 378 | |
| 379 void Clipboard::setAccessPolicy(ClipboardAccessPolicy policy) | |
| 380 { | |
| 381 // once you go numb, can never go back | |
| 382 ASSERT(m_policy != ClipboardNumb || policy == ClipboardNumb); | |
| 383 m_policy = policy; | |
| 384 } | |
| 385 | |
| 386 bool Clipboard::canReadTypes() const | |
| 387 { | |
| 388 return m_policy == ClipboardReadable || m_policy == ClipboardTypesReadable |
| m_policy == ClipboardWritable; | |
| 389 } | |
| 390 | |
| 391 bool Clipboard::canReadData() const | |
| 392 { | |
| 393 return m_policy == ClipboardReadable || m_policy == ClipboardWritable; | |
| 394 } | |
| 395 | |
| 396 bool Clipboard::canWriteData() const | |
| 397 { | |
| 398 return m_policy == ClipboardWritable; | |
| 399 } | |
| 400 | |
| 401 bool Clipboard::canSetDragImage() const | |
| 402 { | |
| 403 return m_policy == ClipboardImageWritable || m_policy == ClipboardWritable; | |
| 404 } | |
| 405 | |
| 406 DragOperation Clipboard::sourceOperation() const | |
| 407 { | |
| 408 DragOperation op = dragOpFromIEOp(m_effectAllowed); | |
| 409 ASSERT(op != DragOperationPrivate); | |
| 410 return op; | |
| 411 } | |
| 412 | |
| 413 DragOperation Clipboard::destinationOperation() const | |
| 414 { | |
| 415 DragOperation op = dragOpFromIEOp(m_dropEffect); | |
| 416 ASSERT(op == DragOperationCopy || op == DragOperationNone || op == DragOpera
tionLink || op == (DragOperation)(DragOperationGeneric | DragOperationMove) || o
p == DragOperationEvery); | |
| 417 return op; | |
| 418 } | |
| 419 | |
| 420 void Clipboard::setSourceOperation(DragOperation op) | |
| 421 { | |
| 422 ASSERT_ARG(op, op != DragOperationPrivate); | |
| 423 m_effectAllowed = IEOpFromDragOp(op); | |
| 424 } | |
| 425 | |
| 426 void Clipboard::setDestinationOperation(DragOperation op) | |
| 427 { | |
| 428 ASSERT_ARG(op, op == DragOperationCopy || op == DragOperationNone || op == D
ragOperationLink || op == DragOperationGeneric || op == DragOperationMove || op
== (DragOperation)(DragOperationGeneric | DragOperationMove)); | |
| 429 m_dropEffect = IEOpFromDragOp(op); | |
| 430 } | |
| 431 | |
| 432 bool Clipboard::hasDropZoneType(const String& keyword) | |
| 433 { | |
| 434 if (keyword.startsWith("file:")) | |
| 435 return hasFileOfType(keyword.substring(5)); | |
| 436 | |
| 437 if (keyword.startsWith("string:")) | |
| 438 return hasStringOfType(keyword.substring(7)); | |
| 439 | |
| 440 return false; | |
| 441 } | |
| 442 | |
| 443 PassRefPtr<DataTransferItemList> Clipboard::items() | |
| 444 { | |
| 445 // FIXME: According to the spec, we are supposed to return the same collecti
on of items each | |
| 446 // time. We now return a wrapper that always wraps the *same* set of items,
so JS shouldn't be | |
| 447 // able to tell, but we probably still want to fix this. | |
| 448 return DataTransferItemList::create(this, m_dataObject); | |
| 449 } | |
| 450 | |
| 451 PassRefPtr<DataObject> Clipboard::dataObject() const | |
| 452 { | |
| 453 return m_dataObject; | |
| 454 } | |
| 455 | |
| 456 Clipboard::Clipboard(ClipboardType type, ClipboardAccessPolicy policy, PassRefPt
r<DataObject> dataObject) | |
| 457 : m_policy(policy) | |
| 458 , m_dropEffect("uninitialized") | |
| 459 , m_effectAllowed("uninitialized") | |
| 460 , m_clipboardType(type) | |
| 461 , m_dataObject(dataObject) | |
| 462 { | |
| 463 ScriptWrappable::init(this); | |
| 464 } | |
| 465 | |
| 466 void Clipboard::setDragImage(ImageResource* image, Node* node, const IntPoint& l
oc) | |
| 467 { | |
| 468 if (!canSetDragImage()) | |
| 469 return; | |
| 470 | |
| 471 m_dragImage = image; | |
| 472 m_dragLoc = loc; | |
| 473 m_dragImageElement = node; | |
| 474 } | |
| 475 | |
| 476 bool Clipboard::hasFileOfType(const String& type) const | |
| 477 { | |
| 478 if (!canReadTypes()) | |
| 479 return false; | |
| 480 | |
| 481 RefPtr<FileList> fileList = files(); | |
| 482 if (fileList->isEmpty()) | |
| 483 return false; | |
| 484 | |
| 485 for (unsigned f = 0; f < fileList->length(); f++) { | |
| 486 if (equalIgnoringCase(fileList->item(f)->type(), type)) | |
| 487 return true; | |
| 488 } | |
| 489 return false; | |
| 490 } | |
| 491 | |
| 492 bool Clipboard::hasStringOfType(const String& type) const | |
| 493 { | |
| 494 if (!canReadTypes()) | |
| 495 return false; | |
| 496 | |
| 497 return types().contains(type); | |
| 498 } | |
| 499 | |
| 500 DragOperation convertDropZoneOperationToDragOperation(const String& dragOperatio
n) | |
| 501 { | |
| 502 if (dragOperation == "copy") | |
| 503 return DragOperationCopy; | |
| 504 if (dragOperation == "move") | |
| 505 return DragOperationMove; | |
| 506 if (dragOperation == "link") | |
| 507 return DragOperationLink; | |
| 508 return DragOperationNone; | |
| 509 } | |
| 510 | |
| 511 String convertDragOperationToDropZoneOperation(DragOperation operation) | |
| 512 { | |
| 513 switch (operation) { | |
| 514 case DragOperationCopy: | |
| 515 return String("copy"); | |
| 516 case DragOperationMove: | |
| 517 return String("move"); | |
| 518 case DragOperationLink: | |
| 519 return String("link"); | |
| 520 default: | |
| 521 return String("copy"); | |
| 522 } | |
| 523 } | |
| 524 | |
| 525 } // namespace WebCore | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 153343003:
Move Clipboard-related code from core/dom to core/clipboard (Closed)
Base URL: svn://svn.chromium.org/blink/trunk