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/*
* Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CSSValuePool_h
#define CSSValuePool_h
#include "CSSFontFamily.h"
#include "CSSInheritedValue.h"
#include "CSSInitialValue.h"
#include "CSSPrimitiveValue.h"
#include "CSSPropertyNames.h"
#include "CSSRevertValue.h"
#include "CSSUnsetValue.h"
#include "CSSValueKeywords.h"
#include <utility>
#include <wtf/HashMap.h>
#include <wtf/NeverDestroyed.h>
#include <wtf/RefPtr.h>
#include <wtf/text/AtomicStringHash.h>
namespace WebCore {
class CSSValueList;
enum class FromSystemFontID { No, Yes };
class CSSValuePool {
WTF_MAKE_FAST_ALLOCATED;
public:
static CSSValuePool& singleton();
PassRefPtr<CSSValueList> createFontFaceValue(const AtomicString&);
Ref<CSSPrimitiveValue> createFontFamilyValue(const String&, FromSystemFontID = FromSystemFontID::No);
Ref<CSSInheritedValue> createInheritedValue() { return m_inheritedValue.get(); }
Ref<CSSInitialValue> createImplicitInitialValue() { return m_implicitInitialValue.get(); }
Ref<CSSInitialValue> createExplicitInitialValue() { return m_explicitInitialValue.get(); }
Ref<CSSUnsetValue> createUnsetValue() { return m_unsetValue.get(); }
Ref<CSSRevertValue> createRevertValue() { return m_revertValue.get(); }
Ref<CSSPrimitiveValue> createIdentifierValue(CSSValueID identifier);
Ref<CSSPrimitiveValue> createIdentifierValue(CSSPropertyID identifier);
Ref<CSSPrimitiveValue> createColorValue(unsigned rgbValue);
Ref<CSSPrimitiveValue> createValue(double value, CSSPrimitiveValue::UnitTypes);
Ref<CSSPrimitiveValue> createValue(const String& value, CSSPrimitiveValue::UnitTypes type) { return CSSPrimitiveValue::create(value, type); }
Ref<CSSPrimitiveValue> createValue(const Length& value, const RenderStyle& style) { return CSSPrimitiveValue::create(value, style); }
Ref<CSSPrimitiveValue> createValue(const LengthSize& value, const RenderStyle& style) { return CSSPrimitiveValue::create(value, style); }
template<typename T> static Ref<CSSPrimitiveValue> createValue(T&& value) { return CSSPrimitiveValue::create(std::forward<T>(value)); }
void drain();
private:
CSSValuePool();
typedef HashMap<unsigned, RefPtr<CSSPrimitiveValue>> ColorValueCache;
ColorValueCache m_colorValueCache;
typedef HashMap<AtomicString, RefPtr<CSSValueList>> FontFaceValueCache;
FontFaceValueCache m_fontFaceValueCache;
typedef HashMap<std::pair<String, bool>, RefPtr<CSSPrimitiveValue>> FontFamilyValueCache;
FontFamilyValueCache m_fontFamilyValueCache;
friend class WTF::NeverDestroyed<CSSValuePool>;
LazyNeverDestroyed<CSSInheritedValue> m_inheritedValue;
LazyNeverDestroyed<CSSInitialValue> m_implicitInitialValue;
LazyNeverDestroyed<CSSInitialValue> m_explicitInitialValue;
LazyNeverDestroyed<CSSUnsetValue> m_unsetValue;
LazyNeverDestroyed<CSSRevertValue> m_revertValue;
LazyNeverDestroyed<CSSPrimitiveValue> m_transparentColor;
LazyNeverDestroyed<CSSPrimitiveValue> m_whiteColor;
LazyNeverDestroyed<CSSPrimitiveValue> m_blackColor;
static const int maximumCacheableIntegerValue = 255;
LazyNeverDestroyed<CSSPrimitiveValue> m_pixelValues[maximumCacheableIntegerValue + 1];
LazyNeverDestroyed<CSSPrimitiveValue> m_percentValues[maximumCacheableIntegerValue + 1];
LazyNeverDestroyed<CSSPrimitiveValue> m_numberValues[maximumCacheableIntegerValue + 1];
LazyNeverDestroyed<CSSPrimitiveValue> m_identifierValues[numCSSValueKeywords];
};
}
#endif
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