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      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 "weborigin/KURL.h"
     35 
     36 namespace WebCore {
     37 
     38 class Document;
     39 
     40 enum CSSParserMode {
     41     CSSQuirksMode,
     42     CSSStrictMode,
     43     // SVG should always be in strict mode. For SVG attributes, the rules differ to strict sometimes.
     44     SVGAttributeMode,
     45     // User agent style sheet should always be in strict mode. Enables internal
     46     // only properties and values.
     47     UASheetMode
     48 };
     49 
     50 inline CSSParserMode strictToCSSParserMode(bool inStrictMode)
     51 {
     52     return inStrictMode ? CSSStrictMode : CSSQuirksMode;
     53 }
     54 
     55 inline bool isStrictParserMode(CSSParserMode cssParserMode)
     56 {
     57     return cssParserMode == CSSStrictMode || cssParserMode == SVGAttributeMode || cssParserMode == UASheetMode;
     58 }
     59 
     60 struct CSSParserContext {
     61     WTF_MAKE_FAST_ALLOCATED;
     62 public:
     63     CSSParserContext(CSSParserMode, const KURL& baseURL = KURL());
     64     CSSParserContext(Document*, const KURL& baseURL = KURL(), const String& charset = emptyString());
     65 
     66     KURL baseURL;
     67     String charset;
     68     CSSParserMode mode;
     69     bool isHTMLDocument;
     70     bool isCSSCustomFilterEnabled;
     71     bool isCSSStickyPositionEnabled;
     72     bool isCSSCompositingEnabled;
     73     bool isCSSTouchActionEnabled;
     74     bool needsSiteSpecificQuirks;
     75     // This quirk is to maintain compatibility with Android apps built on
     76     // the Android SDK prior to and including version 18. Presumably, this
     77     // can be removed any time after 2015. See http://crbug.com/277157.
     78     bool useLegacyBackgroundSizeShorthandBehavior;
     79 };
     80 
     81 bool operator==(const CSSParserContext&, const CSSParserContext&);
     82 inline bool operator!=(const CSSParserContext& a, const CSSParserContext& b) { return !(a == b); }
     83 
     84 const CSSParserContext& strictCSSParserContext();
     85 
     86 };
     87 
     88 #endif // CSSParserMode_h
     89