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 "HTMLElement.h" 28#include "HTMLNames.h" 29#include "LinkHash.h" 30 31namespace WebCore { 32 33// Link relation bitmask values. 34// FIXME: Uncomment as the various link relations are implemented. 35enum { 36// RelationAlternate = 0x00000001, 37// RelationArchives = 0x00000002, 38// RelationAuthor = 0x00000004, 39// RelationBoomark = 0x00000008, 40// RelationExternal = 0x00000010, 41// RelationFirst = 0x00000020, 42// RelationHelp = 0x00000040, 43// RelationIndex = 0x00000080, 44// RelationLast = 0x00000100, 45// RelationLicense = 0x00000200, 46// RelationNext = 0x00000400, 47// RelationNoFolow = 0x00000800, 48 RelationNoReferrer = 0x00001000, 49// RelationPrev = 0x00002000, 50// RelationSearch = 0x00004000, 51// RelationSidebar = 0x00008000, 52// RelationTag = 0x00010000, 53// RelationUp = 0x00020000, 54}; 55 56class HTMLAnchorElement : public HTMLElement { 57public: 58 static PassRefPtr<HTMLAnchorElement> create(Document&); 59 static PassRefPtr<HTMLAnchorElement> create(const QualifiedName&, Document&); 60 61 virtual ~HTMLAnchorElement(); 62 63 URL href() const; 64 void setHref(const AtomicString&); 65 66 const AtomicString& name() const; 67 68 String hash() const; 69 void setHash(const String&); 70 71 String host() const; 72 void setHost(const String&); 73 74 String hostname() const; 75 void setHostname(const String&); 76 77 String pathname() const; 78 void setPathname(const String&); 79 80 String port() const; 81 void setPort(const String&); 82 83 String protocol() const; 84 void setProtocol(const String&); 85 86 String search() const; 87 void setSearch(const String&); 88 89 String origin() const; 90 91 String text(); 92 93 String toString() const; 94 95 bool isLiveLink() const; 96 97 virtual bool willRespondToMouseClickEvents() override; 98 99 bool hasRel(uint32_t relation) const; 100 void setRel(const String&); 101 102 LinkHash visitedLinkHash() const; 103 void invalidateCachedVisitedLinkHash() { m_cachedVisitedLinkHash = 0; } 104 105protected: 106 HTMLAnchorElement(const QualifiedName&, Document&); 107 108 virtual void parseAttribute(const QualifiedName&, const AtomicString&) override; 109 110private: 111 virtual bool supportsFocus() const override; 112 virtual bool isMouseFocusable() const override; 113 virtual bool isKeyboardFocusable(KeyboardEvent*) const override; 114 virtual void defaultEventHandler(Event*) override; 115 virtual void setActive(bool active = true, bool pause = false) override final; 116 virtual void accessKeyAction(bool sendMouseEvents) override; 117 virtual bool isURLAttribute(const Attribute&) const override; 118 virtual bool canStartSelection() const override; 119 virtual String target() const override; 120 virtual short tabIndex() const override final; 121 virtual bool draggable() const override; 122 123 void sendPings(const URL& destinationURL); 124 125 void handleClick(Event*); 126 127 enum EventType { 128 MouseEventWithoutShiftKey, 129 MouseEventWithShiftKey, 130 NonMouseEvent, 131 }; 132 static EventType eventType(Event*); 133 bool treatLinkAsLiveForEventType(EventType) const; 134 135 Element* rootEditableElementForSelectionOnMouseDown() const; 136 void setRootEditableElementForSelectionOnMouseDown(Element*); 137 void clearRootEditableElementForSelectionOnMouseDown(); 138 139 bool m_hasRootEditableElementForSelectionOnMouseDown : 1; 140 bool m_wasShiftKeyDownOnMouseDown : 1; 141 uint32_t m_linkRelations : 30; 142 mutable LinkHash m_cachedVisitedLinkHash; 143}; 144 145inline LinkHash HTMLAnchorElement::visitedLinkHash() const 146{ 147 if (!m_cachedVisitedLinkHash) 148 m_cachedVisitedLinkHash = WebCore::visitedLinkHash(document().baseURL(), fastGetAttribute(HTMLNames::hrefAttr)); 149 return m_cachedVisitedLinkHash; 150} 151 152// Functions shared with the other anchor elements (i.e., SVG). 153 154bool isEnterKeyKeydownEvent(Event*); 155bool isLinkClick(Event*); 156bool shouldProhibitLinks(Element*); 157 158NODE_TYPE_CASTS(HTMLAnchorElement) 159 160} // namespace WebCore 161 162#endif // HTMLAnchorElement_h 163