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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "core/css/parser/MediaQueryParser.h" | 5 #include "core/css/parser/MediaQueryParser.h" |
| 6 | 6 |
| 7 #include "core/MediaTypeNames.h" | 7 #include "core/MediaTypeNames.h" |
| 8 #include "core/css/parser/CSSTokenizer.h" | 8 #include "core/css/parser/CSSTokenizer.h" |
| 9 #include "wtf/Vector.h" | 9 #include "wtf/Vector.h" |
| 10 | 10 |
| (...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 57 } | 57 } |
| 58 | 58 |
| 59 // State machine member functions start here | 59 // State machine member functions start here |
| 60 void MediaQueryParser::readRestrictor(CSSParserTokenType type, const CSSParserTo
ken& token) | 60 void MediaQueryParser::readRestrictor(CSSParserTokenType type, const CSSParserTo
ken& token) |
| 61 { | 61 { |
| 62 readMediaType(type, token); | 62 readMediaType(type, token); |
| 63 } | 63 } |
| 64 | 64 |
| 65 void MediaQueryParser::readMediaNot(CSSParserTokenType type, const CSSParserToke
n& token) | 65 void MediaQueryParser::readMediaNot(CSSParserTokenType type, const CSSParserToke
n& token) |
| 66 { | 66 { |
| 67 if (type == IdentToken && token.valueEqualsIgnoringASCIICase("not")) | 67 if (type == IdentToken && equalIgnoringASCIICase(token.value(), "not")) |
| 68 setStateAndRestrict(ReadFeatureStart, MediaQuery::Not); | 68 setStateAndRestrict(ReadFeatureStart, MediaQuery::Not); |
| 69 else | 69 else |
| 70 readFeatureStart(type, token); | 70 readFeatureStart(type, token); |
| 71 } | 71 } |
| 72 | 72 |
| 73 static bool isRestrictorOrLogicalOperator(const CSSParserToken& token) | 73 static bool isRestrictorOrLogicalOperator(const CSSParserToken& token) |
| 74 { | 74 { |
| 75 // FIXME: it would be more efficient to use lower-case always for tokenValue
. | 75 // FIXME: it would be more efficient to use lower-case always for tokenValue
. |
| 76 return token.valueEqualsIgnoringASCIICase("not") | 76 return equalIgnoringASCIICase(token.value(), "not") |
| 77 || token.valueEqualsIgnoringASCIICase("and") | 77 || equalIgnoringASCIICase(token.value(), "and") |
| 78 || token.valueEqualsIgnoringASCIICase("or") | 78 || equalIgnoringASCIICase(token.value(), "or") |
| 79 || token.valueEqualsIgnoringASCIICase("only"); | 79 || equalIgnoringASCIICase(token.value(), "only"); |
| 80 } | 80 } |
| 81 | 81 |
| 82 void MediaQueryParser::readMediaType(CSSParserTokenType type, const CSSParserTok
en& token) | 82 void MediaQueryParser::readMediaType(CSSParserTokenType type, const CSSParserTok
en& token) |
| 83 { | 83 { |
| 84 if (type == LeftParenthesisToken) { | 84 if (type == LeftParenthesisToken) { |
| 85 if (m_mediaQueryData.restrictor() != MediaQuery::None) | 85 if (m_mediaQueryData.restrictor() != MediaQuery::None) |
| 86 m_state = SkipUntilComma; | 86 m_state = SkipUntilComma; |
| 87 else | 87 else |
| 88 m_state = ReadFeature; | 88 m_state = ReadFeature; |
| 89 } else if (type == IdentToken) { | 89 } else if (type == IdentToken) { |
| 90 if (m_state == ReadRestrictor && token.valueEqualsIgnoringASCIICase("not
")) { | 90 if (m_state == ReadRestrictor && equalIgnoringASCIICase(token.value(), "
not")) { |
| 91 setStateAndRestrict(ReadMediaType, MediaQuery::Not); | 91 setStateAndRestrict(ReadMediaType, MediaQuery::Not); |
| 92 } else if (m_state == ReadRestrictor && token.valueEqualsIgnoringASCIICa
se("only")) { | 92 } else if (m_state == ReadRestrictor && equalIgnoringASCIICase(token.val
ue(), "only")) { |
| 93 setStateAndRestrict(ReadMediaType, MediaQuery::Only); | 93 setStateAndRestrict(ReadMediaType, MediaQuery::Only); |
| 94 } else if (m_mediaQueryData.restrictor() != MediaQuery::None | 94 } else if (m_mediaQueryData.restrictor() != MediaQuery::None |
| 95 && isRestrictorOrLogicalOperator(token)) { | 95 && isRestrictorOrLogicalOperator(token)) { |
| 96 m_state = SkipUntilComma; | 96 m_state = SkipUntilComma; |
| 97 } else { | 97 } else { |
| 98 m_mediaQueryData.setMediaType(token.value().toString()); | 98 m_mediaQueryData.setMediaType(token.value().toString()); |
| 99 m_state = ReadAnd; | 99 m_state = ReadAnd; |
| 100 } | 100 } |
| 101 } else if (type == EOFToken && (!m_querySet->queryVector().size() || m_state
!= ReadRestrictor)) { | 101 } else if (type == EOFToken && (!m_querySet->queryVector().size() || m_state
!= ReadRestrictor)) { |
| 102 m_state = Done; | 102 m_state = Done; |
| 103 } else { | 103 } else { |
| 104 m_state = SkipUntilComma; | 104 m_state = SkipUntilComma; |
| 105 if (type == CommaToken) | 105 if (type == CommaToken) |
| 106 skipUntilComma(type, token); | 106 skipUntilComma(type, token); |
| 107 } | 107 } |
| 108 } | 108 } |
| 109 | 109 |
| 110 void MediaQueryParser::readAnd(CSSParserTokenType type, const CSSParserToken& to
ken) | 110 void MediaQueryParser::readAnd(CSSParserTokenType type, const CSSParserToken& to
ken) |
| 111 { | 111 { |
| 112 if (type == IdentToken && token.valueEqualsIgnoringASCIICase("and")) { | 112 if (type == IdentToken && equalIgnoringASCIICase(token.value(), "and")) { |
| 113 m_state = ReadFeatureStart; | 113 m_state = ReadFeatureStart; |
| 114 } else if (type == CommaToken && m_parserType != MediaConditionParser) { | 114 } else if (type == CommaToken && m_parserType != MediaConditionParser) { |
| 115 m_querySet->addMediaQuery(m_mediaQueryData.takeMediaQuery()); | 115 m_querySet->addMediaQuery(m_mediaQueryData.takeMediaQuery()); |
| 116 m_state = ReadRestrictor; | 116 m_state = ReadRestrictor; |
| 117 } else if (type == EOFToken) { | 117 } else if (type == EOFToken) { |
| 118 m_state = Done; | 118 m_state = Done; |
| 119 } else { | 119 } else { |
| 120 m_state = SkipUntilComma; | 120 m_state = SkipUntilComma; |
| 121 } | 121 } |
| 122 } | 122 } |
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| 274 return false; | 274 return false; |
| 275 } | 275 } |
| 276 | 276 |
| 277 void MediaQueryData::setMediaType(const String& mediaType) | 277 void MediaQueryData::setMediaType(const String& mediaType) |
| 278 { | 278 { |
| 279 m_mediaType = mediaType; | 279 m_mediaType = mediaType; |
| 280 m_mediaTypeSet = true; | 280 m_mediaTypeSet = true; |
| 281 } | 281 } |
| 282 | 282 |
| 283 } // namespace blink | 283 } // namespace blink |
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