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      1 /*
      2  * (C) 1999-2003 Lars Knoll (knoll (at) kde.org)
      3  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.
      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 CSSProperty_h
     22 #define CSSProperty_h
     23 
     24 #include "core/CSSPropertyNames.h"
     25 #include "core/css/CSSValue.h"
     26 #include "platform/RuntimeEnabledFeatures.h"
     27 #include "platform/text/TextDirection.h"
     28 #include "platform/text/WritingMode.h"
     29 #include "wtf/PassRefPtr.h"
     30 #include "wtf/RefPtr.h"
     31 
     32 namespace WebCore {
     33 
     34 struct StylePropertyMetadata {
     35     StylePropertyMetadata(CSSPropertyID propertyID, bool isSetFromShorthand, int indexInShorthandsVector, bool important, bool implicit, bool inherited)
     36         : m_propertyID(propertyID)
     37         , m_isSetFromShorthand(isSetFromShorthand)
     38         , m_indexInShorthandsVector(indexInShorthandsVector)
     39         , m_important(important)
     40         , m_implicit(implicit)
     41         , m_inherited(inherited)
     42     {
     43     }
     44 
     45     CSSPropertyID shorthandID() const;
     46 
     47     uint16_t m_propertyID : 10;
     48     uint16_t m_isSetFromShorthand : 1;
     49     uint16_t m_indexInShorthandsVector : 2; // If this property was set as part of an ambiguous shorthand, gives the index in the shorthands vector.
     50     uint16_t m_important : 1;
     51     uint16_t m_implicit : 1; // Whether or not the property was set implicitly as the result of a shorthand.
     52     uint16_t m_inherited : 1;
     53 };
     54 
     55 class CSSProperty {
     56     ALLOW_ONLY_INLINE_ALLOCATION();
     57 public:
     58     CSSProperty(CSSPropertyID propertyID, PassRefPtrWillBeRawPtr<CSSValue> value, bool important = false, bool isSetFromShorthand = false, int indexInShorthandsVector = 0, bool implicit = false)
     59         : m_metadata(propertyID, isSetFromShorthand, indexInShorthandsVector, important, implicit, isInheritedProperty(propertyID))
     60         , m_value(value)
     61     {
     62     }
     63 
     64     // FIXME: Remove this.
     65     CSSProperty(StylePropertyMetadata metadata, CSSValue* value)
     66         : m_metadata(metadata)
     67         , m_value(value)
     68     {
     69     }
     70 
     71     CSSPropertyID id() const { return static_cast<CSSPropertyID>(m_metadata.m_propertyID); }
     72     bool isSetFromShorthand() const { return m_metadata.m_isSetFromShorthand; };
     73     CSSPropertyID shorthandID() const { return m_metadata.shorthandID(); };
     74     bool isImportant() const { return m_metadata.m_important; }
     75 
     76     CSSValue* value() const { return m_value.get(); }
     77 
     78     void wrapValueInCommaSeparatedList();
     79 
     80     static CSSPropertyID resolveDirectionAwareProperty(CSSPropertyID, TextDirection, WritingMode);
     81     static bool isInheritedProperty(CSSPropertyID);
     82     static bool isAffectedByAllProperty(CSSPropertyID);
     83 
     84     const StylePropertyMetadata& metadata() const { return m_metadata; }
     85 
     86     void trace(Visitor* visitor) { visitor->trace(m_value); }
     87 
     88 private:
     89     StylePropertyMetadata m_metadata;
     90     RefPtrWillBeMember<CSSValue> m_value;
     91 };
     92 
     93 inline CSSPropertyID prefixingVariantForPropertyId(CSSPropertyID propId)
     94 {
     95     if (!RuntimeEnabledFeatures::cssAnimationUnprefixedEnabled() && (propId >= CSSPropertyWebkitAnimation && propId <= CSSPropertyAnimationTimingFunction))
     96         return propId;
     97 
     98     CSSPropertyID propertyId = CSSPropertyInvalid;
     99     switch (propId) {
    100     case CSSPropertyAnimation:
    101         propertyId = CSSPropertyWebkitAnimation;
    102         break;
    103     case CSSPropertyAnimationDelay:
    104         propertyId = CSSPropertyWebkitAnimationDelay;
    105         break;
    106     case CSSPropertyAnimationDirection:
    107         propertyId = CSSPropertyWebkitAnimationDirection;
    108         break;
    109     case CSSPropertyAnimationDuration:
    110         propertyId = CSSPropertyWebkitAnimationDuration;
    111         break;
    112     case CSSPropertyAnimationFillMode:
    113         propertyId = CSSPropertyWebkitAnimationFillMode;
    114         break;
    115     case CSSPropertyAnimationIterationCount:
    116         propertyId = CSSPropertyWebkitAnimationIterationCount;
    117         break;
    118     case CSSPropertyAnimationName:
    119         propertyId = CSSPropertyWebkitAnimationName;
    120         break;
    121     case CSSPropertyAnimationPlayState:
    122         propertyId = CSSPropertyWebkitAnimationPlayState;
    123         break;
    124     case CSSPropertyAnimationTimingFunction:
    125         propertyId = CSSPropertyWebkitAnimationTimingFunction;
    126         break;
    127     case CSSPropertyTransitionDelay:
    128         propertyId = CSSPropertyWebkitTransitionDelay;
    129         break;
    130     case CSSPropertyTransitionDuration:
    131         propertyId = CSSPropertyWebkitTransitionDuration;
    132         break;
    133     case CSSPropertyTransitionProperty:
    134         propertyId = CSSPropertyWebkitTransitionProperty;
    135         break;
    136     case CSSPropertyTransitionTimingFunction:
    137         propertyId = CSSPropertyWebkitTransitionTimingFunction;
    138         break;
    139     case CSSPropertyTransition:
    140         propertyId = CSSPropertyWebkitTransition;
    141         break;
    142     case CSSPropertyWebkitAnimation:
    143         propertyId = CSSPropertyAnimation;
    144         break;
    145     case CSSPropertyWebkitAnimationDelay:
    146         propertyId = CSSPropertyAnimationDelay;
    147         break;
    148     case CSSPropertyWebkitAnimationDirection:
    149         propertyId = CSSPropertyAnimationDirection;
    150         break;
    151     case CSSPropertyWebkitAnimationDuration:
    152         propertyId = CSSPropertyAnimationDuration;
    153         break;
    154     case CSSPropertyWebkitAnimationFillMode:
    155         propertyId = CSSPropertyAnimationFillMode;
    156         break;
    157     case CSSPropertyWebkitAnimationIterationCount:
    158         propertyId = CSSPropertyAnimationIterationCount;
    159         break;
    160     case CSSPropertyWebkitAnimationName:
    161         propertyId = CSSPropertyAnimationName;
    162         break;
    163     case CSSPropertyWebkitAnimationPlayState:
    164         propertyId = CSSPropertyAnimationPlayState;
    165         break;
    166     case CSSPropertyWebkitAnimationTimingFunction:
    167         propertyId = CSSPropertyAnimationTimingFunction;
    168         break;
    169     case CSSPropertyWebkitTransitionDelay:
    170         propertyId = CSSPropertyTransitionDelay;
    171         break;
    172     case CSSPropertyWebkitTransitionDuration:
    173         propertyId = CSSPropertyTransitionDuration;
    174         break;
    175     case CSSPropertyWebkitTransitionProperty:
    176         propertyId = CSSPropertyTransitionProperty;
    177         break;
    178     case CSSPropertyWebkitTransitionTimingFunction:
    179         propertyId = CSSPropertyTransitionTimingFunction;
    180         break;
    181     case CSSPropertyWebkitTransition:
    182         propertyId = CSSPropertyTransition;
    183         break;
    184     default:
    185         propertyId = propId;
    186         break;
    187     }
    188     ASSERT(propertyId != CSSPropertyInvalid);
    189     return propertyId;
    190 }
    191 
    192 } // namespace WebCore
    193 
    194 WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(WebCore::CSSProperty);
    195 
    196 #endif // CSSProperty_h
    197