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      1 /*
      2  * Copyright (C) 2003 Lars Knoll (knoll (at) kde.org)
      3  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
      4  * Copyright (C) 2008 Eric Seidel <eric (at) webkit.org>
      5  * Copyright (C) 2009 - 2010  Torch Mobile (Beijing) Co. Ltd. All rights reserved.
      6  *
      7  * This library is free software; you can redistribute it and/or
      8  * modify it under the terms of the GNU Library General Public
      9  * License as published by the Free Software Foundation; either
     10  * version 2 of the License, or (at your option) any later version.
     11  *
     12  * This library is distributed in the hope that it will be useful,
     13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15  * Library General Public License for more details.
     16  *
     17  * You should have received a copy of the GNU Library General Public License
     18  * along with this library; see the file COPYING.LIB.  If not, write to
     19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     20  * Boston, MA 02110-1301, USA.
     21  */
     22 
     23 #ifndef CSSParserObserver_h
     24 #define CSSParserObserver_h
     25 
     26 #include "core/css/CSSPropertySourceData.h"
     27 
     28 namespace WebCore {
     29 
     30 // FIXME: Although the parser produces these, they're all ignored!
     31 enum CSSParserError {
     32     NoCSSError,
     33     PropertyDeclarationCSSError,
     34     InvalidPropertyValueCSSError,
     35     InvalidPropertyCSSError,
     36     InvalidSelectorCSSError,
     37     InvalidSupportsConditionCSSError,
     38     InvalidRuleCSSError,
     39     InvalidMediaQueryCSSError,
     40     InvalidKeyframeSelectorCSSError,
     41     InvalidSelectorPseudoCSSError,
     42     UnterminatedCommentCSSError,
     43     GeneralCSSError
     44 };
     45 
     46 // FIXME: What are these actually used for? There is probably
     47 // a better way for the parser to communicate this information
     48 // to the Inspector.
     49 
     50 // This only implemented by StyleSheetHandler in InspectorStyleSheet.cpp.
     51 class CSSParserObserver {
     52     STACK_ALLOCATED();
     53 public:
     54     virtual void startRuleHeader(CSSRuleSourceData::Type, unsigned offset) = 0;
     55     virtual void endRuleHeader(unsigned offset) = 0;
     56     virtual void startSelector(unsigned offset) = 0;
     57     virtual void endSelector(unsigned offset) = 0;
     58     virtual void startRuleBody(unsigned offset) = 0;
     59     virtual void endRuleBody(unsigned offset, bool error) = 0;
     60     virtual void startEndUnknownRule() = 0;
     61     virtual void startProperty(unsigned offset) = 0;
     62     virtual void endProperty(bool isImportant, bool isParsed, unsigned offset, CSSParserError) = 0;
     63     virtual void startComment(unsigned offset) = 0;
     64     virtual void endComment(unsigned offset) = 0;
     65 };
     66 
     67 } // namespace WebCore
     68 
     69 #endif // CSSParserObserver_h
     70