1/* 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) 4 * (C) 2000 Simon Hausmann <hausmann@kde.org> 5 * Copyright (C) 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public License 18 * along with this library; see the file COPYING.LIB. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301, USA. 21 * 22 */ 23 24#ifndef HTMLAnchorElement_h 25#define HTMLAnchorElement_h 26 27#include "core/HTMLNames.h" 28#include "core/dom/DOMURLUtils.h" 29#include "core/dom/Document.h" 30#include "core/html/HTMLElement.h" 31#include "platform/LinkHash.h" 32 33namespace blink { 34 35// Link relation bitmask values. 36// FIXME: Uncomment as the various link relations are implemented. 37enum { 38// RelationAlternate = 0x00000001, 39// RelationArchives = 0x00000002, 40// RelationAuthor = 0x00000004, 41// RelationBoomark = 0x00000008, 42// RelationExternal = 0x00000010, 43// RelationFirst = 0x00000020, 44// RelationHelp = 0x00000040, 45// RelationIndex = 0x00000080, 46// RelationLast = 0x00000100, 47// RelationLicense = 0x00000200, 48// RelationNext = 0x00000400, 49// RelationNoFolow = 0x00000800, 50 RelationNoReferrer = 0x00001000, 51// RelationPrev = 0x00002000, 52// RelationSearch = 0x00004000, 53// RelationSidebar = 0x00008000, 54// RelationTag = 0x00010000, 55// RelationUp = 0x00020000, 56}; 57 58class HTMLAnchorElement : public HTMLElement, public DOMURLUtils { 59 DEFINE_WRAPPERTYPEINFO(); 60public: 61 static PassRefPtrWillBeRawPtr<HTMLAnchorElement> create(Document&); 62 63 virtual ~HTMLAnchorElement(); 64 65 KURL href() const; 66 void setHref(const AtomicString&); 67 68 const AtomicString& name() const; 69 70 virtual KURL url() const OVERRIDE FINAL; 71 virtual void setURL(const KURL&) OVERRIDE FINAL; 72 73 virtual String input() const OVERRIDE FINAL; 74 virtual void setInput(const String&) OVERRIDE FINAL; 75 76 virtual bool isLiveLink() const OVERRIDE FINAL; 77 78 virtual bool willRespondToMouseClickEvents() OVERRIDE FINAL; 79 80 bool hasRel(uint32_t relation) const; 81 void setRel(const AtomicString&); 82 83 LinkHash visitedLinkHash() const; 84 void invalidateCachedVisitedLinkHash() { m_cachedVisitedLinkHash = 0; } 85 86 void sendPings(const KURL& destinationURL) const; 87 88protected: 89 HTMLAnchorElement(const QualifiedName&, Document&); 90 91 virtual void attributeWillChange(const QualifiedName&, const AtomicString& oldValue, const AtomicString& newValue) OVERRIDE; 92 virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE; 93 virtual bool supportsFocus() const OVERRIDE; 94 95private: 96 virtual bool shouldHaveFocusAppearance() const OVERRIDE FINAL; 97 virtual void dispatchFocusEvent(Element* oldFocusedElement, FocusType) OVERRIDE; 98 virtual bool isMouseFocusable() const OVERRIDE; 99 virtual bool isKeyboardFocusable() const OVERRIDE; 100 virtual void defaultEventHandler(Event*) OVERRIDE FINAL; 101 virtual void setActive(bool = true) OVERRIDE FINAL; 102 virtual void accessKeyAction(bool sendMouseEvents) OVERRIDE FINAL; 103 virtual bool isURLAttribute(const Attribute&) const OVERRIDE FINAL; 104 virtual bool hasLegalLinkAttribute(const QualifiedName&) const OVERRIDE FINAL; 105 virtual bool canStartSelection() const OVERRIDE FINAL; 106 virtual short tabIndex() const OVERRIDE FINAL; 107 virtual bool draggable() const OVERRIDE FINAL; 108 virtual bool isInteractiveContent() const OVERRIDE FINAL; 109 virtual InsertionNotificationRequest insertedInto(ContainerNode*) OVERRIDE; 110 void handleClick(Event*); 111 112 uint32_t m_linkRelations; 113 mutable LinkHash m_cachedVisitedLinkHash; 114 bool m_wasFocusedByMouse; 115}; 116 117inline LinkHash HTMLAnchorElement::visitedLinkHash() const 118{ 119 if (!m_cachedVisitedLinkHash) 120 m_cachedVisitedLinkHash = blink::visitedLinkHash(document().baseURL(), fastGetAttribute(HTMLNames::hrefAttr)); 121 return m_cachedVisitedLinkHash; 122} 123 124// Functions shared with the other anchor elements (i.e., SVG). 125 126bool isEnterKeyKeydownEvent(Event*); 127bool isLinkClick(Event*); 128 129} // namespace blink 130 131#endif // HTMLAnchorElement_h 132