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
34namespace WebCore {
35
36class CSSPrimitiveValue;
37
38class CSSPrimitiveValueCache : public RefCounted<CSSPrimitiveValueCache> {
39public:
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
49private:
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