1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 1999 Antti Koivisto (koivisto (at) kde.org) 4 * (C) 2000 Simon Hausmann <hausmann (at) 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 "HTMLNames.h" 28 #include "core/html/HTMLElement.h" 29 #include "core/platform/LinkHash.h" 30 31 namespace WebCore { 32 33 // Link relation bitmask values. 34 // FIXME: Uncomment as the various link relations are implemented. 35 enum { 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 56 class HTMLAnchorElement : public HTMLElement { 57 public: 58 static PassRefPtr<HTMLAnchorElement> create(Document*); 59 static PassRefPtr<HTMLAnchorElement> create(const QualifiedName&, Document*); 60 61 virtual ~HTMLAnchorElement(); 62 63 KURL 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; } 104 105 protected: 106 HTMLAnchorElement(const QualifiedName&, Document*); 107 108 virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE; 109 110 private: 111 virtual bool supportsFocus() const; 112 virtual bool isMouseFocusable() const; 113 virtual bool isKeyboardFocusable() const OVERRIDE; 114 virtual void defaultEventHandler(Event*); 115 virtual void setActive(bool active = true, bool pause = false); 116 virtual void accessKeyAction(bool sendMouseEvents); 117 virtual bool isURLAttribute(const Attribute&) const OVERRIDE; 118 virtual bool canStartSelection() const; 119 virtual String target() const; 120 virtual short tabIndex() const; 121 virtual bool draggable() const; 122 123 void sendPings(const KURL& 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 class PrefetchEventHandler; 140 PrefetchEventHandler* prefetchEventHandler(); 141 142 bool m_hasRootEditableElementForSelectionOnMouseDown : 1; 143 bool m_wasShiftKeyDownOnMouseDown : 1; 144 uint32_t m_linkRelations : 30; 145 OwnPtr<PrefetchEventHandler> m_prefetchEventHandler; 146 mutable LinkHash m_cachedVisitedLinkHash; 147 }; 148 149 inline LinkHash HTMLAnchorElement::visitedLinkHash() const 150 { 151 if (!m_cachedVisitedLinkHash) 152 m_cachedVisitedLinkHash = WebCore::visitedLinkHash(document()->baseURL(), fastGetAttribute(HTMLNames::hrefAttr)); 153 return m_cachedVisitedLinkHash; 154 } 155 156 // Functions shared with the other anchor elements (i.e., SVG). 157 158 bool isEnterKeyKeydownEvent(Event*); 159 bool isLinkClick(Event*); 160 161 inline bool isHTMLAnchorElement(const Node* node) 162 { 163 return node->hasTagName(HTMLNames::aTag); 164 } 165 166 inline bool isHTMLAnchorElement(const Element* element) 167 { 168 return element->hasTagName(HTMLNames::aTag); 169 } 170 171 inline HTMLAnchorElement* toHTMLAnchorElement(Node* node) 172 { 173 ASSERT_WITH_SECURITY_IMPLICATION(!node || isHTMLAnchorElement(node)); 174 return static_cast<HTMLAnchorElement*>(node); 175 } 176 177 } // namespace WebCore 178 179 #endif // HTMLAnchorElement_h 180
