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, 2012 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#include "config.h"
30#include "RuleFeature.h"
31
32#include "CSSSelector.h"
33
34namespace WebCore {
35
36void RuleFeatureSet::collectFeaturesFromSelector(const CSSSelector* selector)
37{
38    if (selector->m_match == CSSSelector::Id)
39        idsInRules.add(selector->value().impl());
40    else if (selector->m_match == CSSSelector::Class)
41        classesInRules.add(selector->value().impl());
42    else if (selector->isAttributeSelector())
43        attrsInRules.add(selector->attribute().localName().impl());
44    else if (selector->m_match == CSSSelector::PseudoElement) {
45        switch (selector->pseudoElementType()) {
46        case CSSSelector::PseudoElementFirstLine:
47            usesFirstLineRules = true;
48            break;
49        case CSSSelector::PseudoElementFirstLetter:
50            usesFirstLetterRules = true;
51            break;
52        case CSSSelector::PseudoElementBefore:
53        case CSSSelector::PseudoElementAfter:
54            usesBeforeAfterRules = true;
55            break;
56        default:
57            break;
58        }
59    }
60}
61
62void RuleFeatureSet::add(const RuleFeatureSet& other)
63{
64    HashSet<AtomicStringImpl*>::const_iterator end = other.idsInRules.end();
65    for (HashSet<AtomicStringImpl*>::const_iterator it = other.idsInRules.begin(); it != end; ++it)
66        idsInRules.add(*it);
67    end = other.classesInRules.end();
68    for (HashSet<AtomicStringImpl*>::const_iterator it = other.classesInRules.begin(); it != end; ++it)
69        classesInRules.add(*it);
70    end = other.attrsInRules.end();
71    for (HashSet<AtomicStringImpl*>::const_iterator it = other.attrsInRules.begin(); it != end; ++it)
72        attrsInRules.add(*it);
73    siblingRules.appendVector(other.siblingRules);
74    uncommonAttributeRules.appendVector(other.uncommonAttributeRules);
75    usesFirstLineRules = usesFirstLineRules || other.usesFirstLineRules;
76    usesFirstLetterRules = usesFirstLetterRules || other.usesFirstLetterRules;
77    usesBeforeAfterRules = usesBeforeAfterRules || other.usesBeforeAfterRules;
78}
79
80void RuleFeatureSet::clear()
81{
82    idsInRules.clear();
83    classesInRules.clear();
84    attrsInRules.clear();
85    siblingRules.clear();
86    uncommonAttributeRules.clear();
87    usesFirstLineRules = false;
88    usesFirstLetterRules = false;
89    usesBeforeAfterRules = false;
90}
91
92} // namespace WebCore
93