1 /* 2 * Copyright (C) 2012 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 #ifndef LabelableElement_h 32 #define LabelableElement_h 33 34 #include "core/html/HTMLElement.h" 35 36 namespace WebCore { 37 38 class LabelsNodeList; 39 40 // LabelableElement represents "labelable element" defined in the HTML 41 // specification, and provides the implementation of the "labels" attribute. 42 class LabelableElement : public HTMLElement { 43 public: 44 virtual ~LabelableElement(); 45 PassRefPtrWillBeRawPtr<LabelsNodeList> labels(); 46 virtual bool supportLabels() const { return false; } 47 48 virtual void trace(Visitor*) OVERRIDE; 49 50 protected: 51 LabelableElement(const QualifiedName& tagName, Document&); 52 53 private: 54 virtual bool isLabelable() const OVERRIDE FINAL { return true; } 55 }; 56 57 inline bool isLabelableElement(const Element& element) 58 { 59 return element.isHTMLElement() && toHTMLElement(element).isLabelable(); 60 } 61 62 inline bool isLabelableElement(const HTMLElement& element) 63 { 64 return element.isLabelable(); 65 } 66 67 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(LabelableElement); 68 69 } // namespace WebCore 70 71 #endif 72
