1 /*
2 * Copyright (C) 2012 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #ifndef SelectRuleFeatureSet_h
32 #define SelectRuleFeatureSet_h
33
34 #include "core/css/RuleFeature.h"
35 #include "core/dom/Element.h"
36
37 namespace WebCore {
38
39 class SelectRuleFeatureSet {
40 public:
41 SelectRuleFeatureSet();
42
43 void add(const SelectRuleFeatureSet&);
44 void clear();
45 void collectFeaturesFromSelector(const CSSSelector*);
46
47 bool hasSelectorForId(const AtomicString&) const;
48 bool hasSelectorForClass(const AtomicString&) const;
49 bool hasSelectorForAttribute(const AtomicString&) const;
50
hasSelectorForChecked()51 bool hasSelectorForChecked() const { return hasSelectorFor(AffectedSelectorChecked); }
hasSelectorForEnabled()52 bool hasSelectorForEnabled() const { return hasSelectorFor(AffectedSelectorEnabled); }
hasSelectorForDisabled()53 bool hasSelectorForDisabled() const { return hasSelectorFor(AffectedSelectorDisabled); }
hasSelectorForIndeterminate()54 bool hasSelectorForIndeterminate() const { return hasSelectorFor(AffectedSelectorIndeterminate); }
hasSelectorForLink()55 bool hasSelectorForLink() const { return hasSelectorFor(AffectedSelectorLink); }
hasSelectorForTarget()56 bool hasSelectorForTarget() const { return hasSelectorFor(AffectedSelectorTarget); }
hasSelectorForVisited()57 bool hasSelectorForVisited() const { return hasSelectorFor(AffectedSelectorVisited); }
58
hasSelectorFor(AffectedSelectorMask features)59 bool hasSelectorFor(AffectedSelectorMask features) const { return m_featureFlags & features; }
60
61 private:
setSelectRuleFeature(AffectedSelectorType feature)62 void setSelectRuleFeature(AffectedSelectorType feature) { m_featureFlags |= feature; }
63
64 RuleFeatureSet m_cssRuleFeatureSet;
65 int m_featureFlags;
66 };
67
hasSelectorForId(const AtomicString & idValue)68 inline bool SelectRuleFeatureSet::hasSelectorForId(const AtomicString& idValue) const
69 {
70 ASSERT(!idValue.isEmpty());
71 return m_cssRuleFeatureSet.idsInRules.contains(idValue);
72 }
73
hasSelectorForClass(const AtomicString & classValue)74 inline bool SelectRuleFeatureSet::hasSelectorForClass(const AtomicString& classValue) const
75 {
76 ASSERT(!classValue.isEmpty());
77 return m_cssRuleFeatureSet.classesInRules.contains(classValue);
78 }
79
hasSelectorForAttribute(const AtomicString & attributeName)80 inline bool SelectRuleFeatureSet::hasSelectorForAttribute(const AtomicString& attributeName) const
81 {
82 ASSERT(!attributeName.isEmpty());
83 return m_cssRuleFeatureSet.attrsInRules.contains(attributeName);
84 }
85
86 }
87
88 #endif
89