1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * (C) 2004-2005 Allan Sandfeld Jensen (kde (at) carewolf.com) 4 * Copyright (C) 2006, 2007 Nicholas Shanks (webkit (at) nickshanks.com) 5 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved. 6 * Copyright (C) 2007 Alexey Proskuryakov <ap (at) webkit.org> 7 * Copyright (C) 2007, 2008 Eric Seidel <eric (at) webkit.org> 8 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) 9 * Copyright (c) 2011, Code Aurora Forum. All rights reserved. 10 * Copyright (C) Research In Motion Limited 2011. All rights reserved. 11 * Copyright (C) 2012 Google Inc. All rights reserved. 12 * 13 * This library is free software; you can redistribute it and/or 14 * modify it under the terms of the GNU Library General Public 15 * License as published by the Free Software Foundation; either 16 * version 2 of the License, or (at your option) any later version. 17 * 18 * This library is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 21 * Library General Public License for more details. 22 * 23 * You should have received a copy of the GNU Library General Public License 24 * along with this library; see the file COPYING.LIB. If not, write to 25 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 26 * Boston, MA 02110-1301, USA. 27 */ 28 29 #ifndef VisitedLinkState_h 30 #define VisitedLinkState_h 31 32 #include "core/dom/Element.h" 33 #include "core/rendering/style/RenderStyleConstants.h" 34 #include "platform/LinkHash.h" 35 #include "wtf/HashSet.h" 36 37 namespace WebCore { 38 39 class Document; 40 41 class VisitedLinkState { 42 WTF_MAKE_FAST_ALLOCATED; 43 public: 44 static PassOwnPtr<VisitedLinkState> create(const Document& document) 45 { 46 return adoptPtr(new VisitedLinkState(document)); 47 } 48 49 void invalidateStyleForAllLinks(); 50 void invalidateStyleForLink(LinkHash); 51 52 EInsideLink determineLinkState(const Element& element) 53 { 54 if (element.isLink()) 55 return determineLinkStateSlowCase(element); 56 return NotInsideLink; 57 } 58 59 private: 60 explicit VisitedLinkState(const Document&); 61 62 EInsideLink determineLinkStateSlowCase(const Element&); 63 64 const Document& m_document; 65 HashSet<LinkHash, LinkHashHash> m_linksCheckedForVisitedState; 66 }; 67 68 } 69 70 #endif 71 72
