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      1 /*
      2  * Copyright (C) 2011 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef CSSPrimitiveValueCache_h
     27 #define CSSPrimitiveValueCache_h
     28 
     29 #include "CSSPrimitiveValue.h"
     30 #include "CSSValueKeywords.h"
     31 #include <wtf/HashMap.h>
     32 #include <wtf/RefPtr.h>
     33 
     34 namespace WebCore {
     35 
     36 class CSSPrimitiveValue;
     37 
     38 class CSSPrimitiveValueCache : public RefCounted<CSSPrimitiveValueCache> {
     39 public:
     40     static PassRefPtr<CSSPrimitiveValueCache> create() { return adoptRef(new CSSPrimitiveValueCache); }
     41     ~CSSPrimitiveValueCache();
     42 
     43     PassRefPtr<CSSPrimitiveValue> createIdentifierValue(int identifier);
     44     PassRefPtr<CSSPrimitiveValue> createColorValue(unsigned rgbValue);
     45     PassRefPtr<CSSPrimitiveValue> createValue(double value, CSSPrimitiveValue::UnitTypes);
     46     PassRefPtr<CSSPrimitiveValue> createValue(String value, CSSPrimitiveValue::UnitTypes type) { return CSSPrimitiveValue::create(value, type); }
     47     template<typename T> static PassRefPtr<CSSPrimitiveValue> createValue(T value) { return CSSPrimitiveValue::create(value); }
     48 
     49 private:
     50     CSSPrimitiveValueCache();
     51 
     52     typedef HashMap<int, RefPtr<CSSPrimitiveValue> > IdentifierValueCache;
     53     IdentifierValueCache m_identifierValueCache;
     54 
     55     typedef HashMap<unsigned, RefPtr<CSSPrimitiveValue> > ColorValueCache;
     56     ColorValueCache m_colorValueCache;
     57     RefPtr<CSSPrimitiveValue> m_colorTransparent;
     58     RefPtr<CSSPrimitiveValue> m_colorWhite;
     59     RefPtr<CSSPrimitiveValue> m_colorBlack;
     60 
     61     typedef HashMap<int, RefPtr<CSSPrimitiveValue> > IntegerValueCache;
     62     RefPtr<CSSPrimitiveValue> m_pixelZero;
     63     RefPtr<CSSPrimitiveValue> m_percentZero;
     64     RefPtr<CSSPrimitiveValue> m_numberZero;
     65     IntegerValueCache m_pixelValueCache;
     66     IntegerValueCache m_percentValueCache;
     67     IntegerValueCache m_numberValueCache;
     68 };
     69 
     70 }
     71 
     72 #endif
     73