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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.
*/
#pragma once
#include "CSSPrimitiveValue.h"
#include "CSSPropertyNames.h"
#include "CSSValueKeywords.h"
#include "ColorHash.h"
#include <utility>
#include <wtf/HashMap.h>
#include <wtf/NeverDestroyed.h>
#include <wtf/RefPtr.h>
#include <wtf/text/AtomStringHash.h>
namespace WebCore {
class CSSValueList;
class CSSValuePool;
enum class FromSystemFontID { No, Yes };
class StaticCSSValuePool {
friend class CSSValuePool;
friend class LazyNeverDestroyed<StaticCSSValuePool>;
public:
static void init();
private:
StaticCSSValuePool();
LazyNeverDestroyed<CSSPrimitiveValue> m_implicitInitialValue;
LazyNeverDestroyed<CSSPrimitiveValue> m_transparentColor;
LazyNeverDestroyed<CSSPrimitiveValue> m_whiteColor;
LazyNeverDestroyed<CSSPrimitiveValue> m_blackColor;
static constexpr 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];
};
WEBCORE_EXPORT extern LazyNeverDestroyed<StaticCSSValuePool> staticCSSValuePool;
class CSSValuePool {
WTF_MAKE_FAST_ALLOCATED;
WTF_MAKE_NONCOPYABLE(CSSValuePool);
public:
CSSValuePool();
static CSSValuePool& singleton();
RefPtr<CSSValueList> createFontFaceValue(const AtomString&);
Ref<CSSPrimitiveValue> createFontFamilyValue(const String&, FromSystemFontID = FromSystemFontID::No);
Ref<CSSPrimitiveValue> createImplicitInitialValue() { return staticCSSValuePool->m_implicitInitialValue.get(); }
Ref<CSSPrimitiveValue> createIdentifierValue(CSSValueID identifier);
Ref<CSSPrimitiveValue> createIdentifierValue(CSSPropertyID identifier);
Ref<CSSPrimitiveValue> createColorValue(const Color&);
Ref<CSSPrimitiveValue> createValue(double value, CSSUnitType);
Ref<CSSPrimitiveValue> createValue(const String& value, CSSUnitType 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); }
Ref<CSSPrimitiveValue> createCustomIdent(const String& value) { return CSSPrimitiveValue::create(value, CSSUnitType::CustomIdent); }
template<typename T> static Ref<CSSPrimitiveValue> createValue(T&& value) { return CSSPrimitiveValue::create(std::forward<T>(value)); }
template<typename T> static Ref<CSSPrimitiveValue> createValue(T&& value, CSSPropertyID identifier) { return CSSPrimitiveValue::create(std::forward<T>(value), identifier); }
void drain();
private:
typedef HashMap<Color, RefPtr<CSSPrimitiveValue>> ColorValueCache;
ColorValueCache m_colorValueCache;
typedef HashMap<AtomString, RefPtr<CSSValueList>> FontFaceValueCache;
FontFaceValueCache m_fontFaceValueCache;
typedef HashMap<std::pair<String, bool>, RefPtr<CSSPrimitiveValue>> FontFamilyValueCache;
FontFamilyValueCache m_fontFamilyValueCache;
friend class NeverDestroyed<CSSValuePool>;
};
} // namespace WebCore
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