| OLD | NEW |
| (Empty) |
| 1 /* | |
| 2 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved. | |
| 3 * Copyright (C) 2012 Apple Inc. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above | |
| 10 * copyright notice, this list of conditions and the following | |
| 11 * disclaimer. | |
| 12 * 2. Redistributions in binary form must reproduce the above | |
| 13 * copyright notice, this list of conditions and the following | |
| 14 * disclaimer in the documentation and/or other materials | |
| 15 * provided with the distribution. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY | |
| 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE | |
| 21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, | |
| 22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 24 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | |
| 26 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF | |
| 27 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 28 * SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef CSSParserMode_h | |
| 32 #define CSSParserMode_h | |
| 33 | |
| 34 #include "platform/weborigin/KURL.h" | |
| 35 #include "platform/weborigin/Referrer.h" | |
| 36 | |
| 37 namespace blink { | |
| 38 | |
| 39 class Document; | |
| 40 | |
| 41 // Must not grow beyond 3 bits, due to packing in StylePropertySet. | |
| 42 enum CSSParserMode { | |
| 43 HTMLStandardMode, | |
| 44 HTMLQuirksMode, | |
| 45 // HTML attributes are parsed in quirks mode but also allows internal proper
ties and values. | |
| 46 HTMLAttributeMode, | |
| 47 // SVG attributes are parsed in quirks mode but rules differ slightly. | |
| 48 SVGAttributeMode, | |
| 49 // @viewport rules are parsed in standards mode but CSSOM modifications (via
StylePropertySet) | |
| 50 // must call parseViewportProperties so needs a special mode. | |
| 51 CSSViewportRuleMode, | |
| 52 // User agent stylesheets are parsed in standards mode but also allows inter
nal properties and values. | |
| 53 UASheetMode | |
| 54 }; | |
| 55 | |
| 56 inline bool isQuirksModeBehavior(CSSParserMode mode) | |
| 57 { | |
| 58 return mode == HTMLQuirksMode; // || mode == HTMLAttributeMode; | |
| 59 } | |
| 60 | |
| 61 inline bool isUASheetBehavior(CSSParserMode mode) | |
| 62 { | |
| 63 return mode == UASheetMode; | |
| 64 } | |
| 65 | |
| 66 inline bool isInternalPropertyAndValueParsingEnabledForMode(CSSParserMode mode) | |
| 67 { | |
| 68 return mode == HTMLAttributeMode || mode == UASheetMode; | |
| 69 } | |
| 70 | |
| 71 inline bool isUnitLessLengthParsingEnabledForMode(CSSParserMode mode) | |
| 72 { | |
| 73 return mode == HTMLQuirksMode || mode == HTMLAttributeMode || mode == SVGAtt
ributeMode; | |
| 74 } | |
| 75 | |
| 76 inline bool isCSSViewportParsingEnabledForMode(CSSParserMode mode) | |
| 77 { | |
| 78 return mode == CSSViewportRuleMode; | |
| 79 } | |
| 80 | |
| 81 inline bool isSVGNumberParsingEnabledForMode(CSSParserMode mode) | |
| 82 { | |
| 83 return mode == SVGAttributeMode; | |
| 84 } | |
| 85 | |
| 86 inline bool isUseCounterEnabledForMode(CSSParserMode mode) | |
| 87 { | |
| 88 // We don't count the UA style sheet in our statistics. | |
| 89 return mode != UASheetMode; | |
| 90 } | |
| 91 | |
| 92 class UseCounter; | |
| 93 | |
| 94 class CSSParserContext { | |
| 95 WTF_MAKE_FAST_ALLOCATED; | |
| 96 public: | |
| 97 CSSParserContext(CSSParserMode, UseCounter*); | |
| 98 // FIXME: We shouldn't need the UseCounter argument as we could infer it fro
m the Document | |
| 99 // but some callers want to disable use counting (e.g. the WebInspector). | |
| 100 CSSParserContext(const Document&, UseCounter*, const KURL& baseURL = KURL(),
const String& charset = emptyString()); | |
| 101 // FIXME: This constructor shouldn't exist if we properly piped the UseCount
er through the CSS | |
| 102 // subsystem. Currently the UseCounter life time is too crazy and we need a
way to override it. | |
| 103 CSSParserContext(const CSSParserContext&, UseCounter*); | |
| 104 | |
| 105 bool operator==(const CSSParserContext&) const; | |
| 106 bool operator!=(const CSSParserContext& other) const { return !(*this == oth
er); } | |
| 107 | |
| 108 CSSParserMode mode() const { return m_mode; } | |
| 109 const KURL& baseURL() const { return m_baseURL; } | |
| 110 const String& charset() const { return m_charset; } | |
| 111 const Referrer& referrer() const { return m_referrer; } | |
| 112 bool isHTMLDocument() const { return m_isHTMLDocument; } | |
| 113 | |
| 114 // This quirk is to maintain compatibility with Android apps built on | |
| 115 // the Android SDK prior to and including version 18. Presumably, this | |
| 116 // can be removed any time after 2015. See http://crbug.com/277157. | |
| 117 bool useLegacyBackgroundSizeShorthandBehavior() const { return m_useLegacyBa
ckgroundSizeShorthandBehavior; } | |
| 118 | |
| 119 // FIXME: These setters shouldn't exist, however the current lifetime of CSS
ParserContext | |
| 120 // is not well understood and thus we sometimes need to override these field
s. | |
| 121 void setMode(CSSParserMode mode) { m_mode = mode; } | |
| 122 void setBaseURL(const KURL& baseURL) { m_baseURL = baseURL; } | |
| 123 void setCharset(const String& charset) { m_charset = charset; } | |
| 124 void setReferrer(const Referrer& referrer) { m_referrer = referrer; } | |
| 125 | |
| 126 KURL completeURL(const String& url) const; | |
| 127 | |
| 128 UseCounter* useCounter() const { return m_useCounter; } | |
| 129 | |
| 130 private: | |
| 131 KURL m_baseURL; | |
| 132 String m_charset; | |
| 133 CSSParserMode m_mode; | |
| 134 Referrer m_referrer; | |
| 135 bool m_isHTMLDocument; | |
| 136 bool m_useLegacyBackgroundSizeShorthandBehavior; | |
| 137 | |
| 138 UseCounter* m_useCounter; | |
| 139 }; | |
| 140 | |
| 141 const CSSParserContext& strictCSSParserContext(); | |
| 142 | |
| 143 }; | |
| 144 | |
| 145 #endif // CSSParserMode_h | |
| OLD | NEW |