1/*
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
4 * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
5 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
6 * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
7 * Copyright (C) 2007, 2008 Eric Seidel <eric@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#pragma once
30
31#include "Element.h"
32#include "RenderStyleConstants.h"
33#include "SharedStringHash.h"
34#include <wtf/HashSet.h>
35
36namespace WebCore {
37
38class Document;
39
40class VisitedLinkState {
41 WTF_MAKE_FAST_ALLOCATED;
42public:
43 explicit VisitedLinkState(Document&);
44
45 void invalidateStyleForAllLinks();
46 void invalidateStyleForLink(SharedStringHash);
47 InsideLink determineLinkState(const Element&);
48
49private:
50 InsideLink determineLinkStateSlowCase(const Element&);
51
52 Document& m_document;
53 HashSet<SharedStringHash, SharedStringHashHash> m_linksCheckedForVisitedState;
54};
55
56inline InsideLink VisitedLinkState::determineLinkState(const Element& element)
57{
58 if (!element.isLink())
59 return InsideLink::NotInside;
60 return determineLinkStateSlowCase(element);
61}
62
63} // namespace WebCore
64