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1 /* | 1 /* |
2 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde
.org> | 2 * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde
.org> |
3 * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org> | 3 * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org> |
4 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. | 4 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. |
5 * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved. | 5 * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved. |
6 * | 6 * |
7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
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422 | 422 |
423 ++depth; | 423 ++depth; |
424 | 424 |
425 for (SVGElementInstance* instance = targetInstance->firstChild(); instance;
instance = instance->nextSibling()) | 425 for (SVGElementInstance* instance = targetInstance->firstChild(); instance;
instance = instance->nextSibling()) |
426 dumpInstanceTree(depth, text, instance); | 426 dumpInstanceTree(depth, text, instance); |
427 | 427 |
428 --depth; | 428 --depth; |
429 } | 429 } |
430 #endif | 430 #endif |
431 | 431 |
432 static bool isDisallowedElement(Node* element) | 432 static bool isDisallowedElement(Node* node) |
433 { | 433 { |
434 // <foreignObject> should never be contained in a <use> tree. Too dangerous
side effects possible. | 434 // Spec: "Any 'svg', 'symbol', 'g', graphics element or other 'use' is poten
tially a template object that can be re-used |
435 if (element->hasTagName(SVGNames::foreignObjectTag)) | 435 // (i.e., "instanced") in the SVG document via a 'use' element." |
| 436 // "Graphics Element" is defined as 'circle', 'ellipse', 'image', 'line', 'p
ath', 'polygon', 'polyline', 'rect', 'text' |
| 437 // Excluded are anything that is used by reference or that only make sense t
o appear once in a document. |
| 438 // We must also allow the shadow roots of other use elements and text. |
| 439 if (node->isTextNode()) |
| 440 return false; |
| 441 |
| 442 if (!node->isSVGElement()) |
436 return true; | 443 return true; |
437 if (SVGSMILElement::isSMILElement(element)) | 444 |
438 return true; | 445 SVGElement* element = static_cast<SVGElement*>(node); |
439 return false; | 446 |
| 447 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, allowedElementTags, ()); |
| 448 if (allowedElementTags.isEmpty()) { |
| 449 allowedElementTags.add(SVGNames::aTag); |
| 450 allowedElementTags.add(SVGNames::circleTag); |
| 451 allowedElementTags.add(SVGNames::defsTag); |
| 452 allowedElementTags.add(SVGNames::descTag); |
| 453 allowedElementTags.add(SVGNames::ellipseTag); |
| 454 allowedElementTags.add(SVGNames::gTag); |
| 455 allowedElementTags.add(SVGNames::imageTag); |
| 456 allowedElementTags.add(SVGNames::lineTag); |
| 457 allowedElementTags.add(SVGNames::metadataTag); |
| 458 allowedElementTags.add(SVGNames::pathTag); |
| 459 allowedElementTags.add(SVGNames::polygonTag); |
| 460 allowedElementTags.add(SVGNames::polylineTag); |
| 461 allowedElementTags.add(SVGNames::rectTag); |
| 462 allowedElementTags.add(SVGNames::svgTag); |
| 463 allowedElementTags.add(SVGNames::switchTag); |
| 464 allowedElementTags.add(SVGNames::symbolTag); |
| 465 allowedElementTags.add(SVGNames::textTag); |
| 466 allowedElementTags.add(SVGNames::textPathTag); |
| 467 allowedElementTags.add(SVGNames::titleTag); |
| 468 allowedElementTags.add(SVGNames::trefTag); |
| 469 allowedElementTags.add(SVGNames::tspanTag); |
| 470 allowedElementTags.add(SVGNames::useTag); |
| 471 } |
| 472 return !allowedElementTags.contains<QualifiedName, SVGAttributeHashTranslato
r>(element->tagQName()); |
440 } | 473 } |
441 | 474 |
442 static bool subtreeContainsDisallowedElement(Node* start) | 475 static bool subtreeContainsDisallowedElement(Node* start) |
443 { | 476 { |
444 if (isDisallowedElement(start)) | 477 if (isDisallowedElement(start)) |
445 return true; | 478 return true; |
446 | 479 |
447 for (Node* cur = start->firstChild(); cur; cur = cur->nextSibling()) { | 480 for (Node* cur = start->firstChild(); cur; cur = cur->nextSibling()) { |
448 if (subtreeContainsDisallowedElement(cur)) | 481 if (subtreeContainsDisallowedElement(cur)) |
449 return true; | 482 return true; |
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1067 SVGElement* element = m_targetElementInstance->correspondingElement(); | 1100 SVGElement* element = m_targetElementInstance->correspondingElement(); |
1068 if (!element || !element->isStyled()) | 1101 if (!element || !element->isStyled()) |
1069 return false; | 1102 return false; |
1070 | 1103 |
1071 return static_cast<SVGStyledElement*>(element)->hasRelativeLengths(); | 1104 return static_cast<SVGStyledElement*>(element)->hasRelativeLengths(); |
1072 } | 1105 } |
1073 | 1106 |
1074 } | 1107 } |
1075 | 1108 |
1076 #endif // ENABLE(SVG) | 1109 #endif // ENABLE(SVG) |
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