1 /* 2 * Copyright (C) 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 "DOMUtilitiesPrivate.h" 33 34 #include "HTMLNames.h" 35 #include "core/dom/Element.h" 36 #include "core/html/HTMLAreaElement.h" 37 #include "core/html/HTMLInputElement.h" 38 #include "core/html/HTMLTableElement.h" 39 40 using namespace WebCore; 41 using namespace WebCore::HTMLNames; 42 43 namespace blink { 44 45 bool elementHasLegalLinkAttribute(const Element* element, const QualifiedName& attrName) 46 { 47 if (attrName == srcAttr) 48 return element->hasTagName(imgTag) || element->hasTagName(scriptTag) || element->hasTagName(iframeTag) || element->hasTagName(frameTag) || (element->hasTagName(inputTag) && toHTMLInputElement(element)->isImageButton()); 49 if (attrName == hrefAttr) 50 return element->hasTagName(linkTag) || isHTMLAnchorElement(element) || isHTMLAreaElement(element); 51 if (attrName == actionAttr) 52 return element->hasTagName(formTag); 53 if (attrName == backgroundAttr) 54 return element->hasTagName(bodyTag) || isHTMLTableElement(element) || element->hasTagName(trTag) || element->hasTagName(tdTag); 55 if (attrName == citeAttr) 56 return element->hasTagName(blockquoteTag) || element->hasTagName(qTag) || element->hasTagName(delTag) || element->hasTagName(insTag); 57 if (attrName == classidAttr || attrName == dataAttr) 58 return element->hasTagName(objectTag); 59 if (attrName == codebaseAttr) 60 return element->hasTagName(objectTag) || element->hasTagName(appletTag); 61 return false; 62 } 63 64 } // namespace blink 65
