WebCore/CSSParserValues.h

   1 /*
   2  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
   3  * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Library General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public License
  16  * along with this library; see the file COPYING.LIB.  If not, write to
  17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  * Boston, MA 02110-1301, USA.
  19  */
  20
  21 #ifndef CSSParserValues_h
  22 #define CSSParserValues_h
  23
  24 #include "AtomicString.h"
  25
  26 namespace WebCore {
  27
  28 class CSSValue;
  29
  30 struct CSSParserString {
  31     UChar* characters;
  32     int length;
  33
  34     void lower();
  35
  36     operator String() const { return String(characters, length); }
  37     operator AtomicString() const { return AtomicString(characters, length); }
  38 };
  39
  40 struct CSSParserFunction;
  41
  42 struct CSSParserValue {
  43     int id;
  44     bool isInt;
  45     union {
  46         double fValue;
  47         int iValue;
  48         CSSParserString string;
  49         CSSParserFunction* function;
  50     };
  51     enum {
  52         Operator = 0x100000,
  53         Function = 0x100001,
  54         Q_EMS    = 0x100002
  55     };
  56     int unit;
  57
  58     bool isVariable() const;
  59
  60     PassRefPtr<CSSValue> createCSSValue();
  61 };
  62
  63 class CSSParserValueList {
  64 public:
  65     CSSParserValueList()
  66         : m_current(0)
  67         , m_variablesCount(0)
  68     {
  69     }
  70     ~CSSParserValueList();
  71
  72     void addValue(const CSSParserValue&);
  73     void deleteValueAt(unsigned);
  74
  75     unsigned size() const { return m_values.size(); }
  76     CSSParserValue* current() { return m_current < m_values.size() ? &m_values[m_current] : 0; }
  77     CSSParserValue* next() { ++m_current; return current(); }
  78
  79     CSSParserValue* valueAt(unsigned i) { return i < m_values.size() ? &m_values[i] : 0; }
  80
  81     void clear() { m_values.clear(); }
  82
  83     bool containsVariables() const { return m_variablesCount; }
  84
  85 private:
  86     Vector<CSSParserValue, 16> m_values;
  87     unsigned m_current;
  88     unsigned m_variablesCount;
  89 };
  90
  91 struct CSSParserFunction {
  92     CSSParserString name;
  93     CSSParserValueList* args;
  94
  95     ~CSSParserFunction() { delete args; }
  96 };
  97
  98 }
  99
 100 #endif