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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:
create()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);
createValue(String value,CSSPrimitiveValue::UnitTypes type)46     PassRefPtr<CSSPrimitiveValue> createValue(String value, CSSPrimitiveValue::UnitTypes type) { return CSSPrimitiveValue::create(value, type); }
createValue(T value)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