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/*
* Copyright (C) 2011 Google 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 CSSStyleApplyProperty_h
#define CSSStyleApplyProperty_h
#include "CSSPropertyNames.h"
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
namespace WebCore {
class CSSStyleSelector;
class CSSValue;
class ApplyPropertyBase {
WTF_MAKE_NONCOPYABLE(ApplyPropertyBase);
WTF_MAKE_FAST_ALLOCATED;
public:
ApplyPropertyBase() { }
virtual ~ApplyPropertyBase() { }
virtual void inherit(CSSStyleSelector*) const = 0;
virtual void initial(CSSStyleSelector*) const = 0;
virtual void value(CSSStyleSelector*, CSSValue*) const = 0;
};
class CSSStyleApplyProperty : public RefCounted<CSSStyleApplyProperty> {
public:
static const CSSStyleApplyProperty& sharedCSSStyleApplyProperty();
void inherit(CSSPropertyID property, CSSStyleSelector* selector) const
{
ASSERT(implements(property));
propertyValue(property)->inherit(selector);
}
void initial(CSSPropertyID property, CSSStyleSelector* selector) const
{
ASSERT(implements(property));
propertyValue(property)->initial(selector);
}
void value(CSSPropertyID property, CSSStyleSelector* selector, CSSValue* value) const
{
ASSERT(implements(property));
propertyValue(property)->value(selector, value);
}
bool implements(CSSPropertyID property) const
{
return propertyValue(property);
}
private:
CSSStyleApplyProperty();
static int index(CSSPropertyID property)
{
return property - firstCSSProperty;
}
static bool valid(CSSPropertyID property)
{
int i = index(property);
return i >= 0 && i < numCSSProperties;
}
void setPropertyValue(CSSPropertyID property, ApplyPropertyBase* value)
{
ASSERT(valid(property));
m_propertyMap[index(property)] = value;
}
ApplyPropertyBase* propertyValue(CSSPropertyID property) const
{
ASSERT(valid(property));
return m_propertyMap[index(property)];
}
ApplyPropertyBase* m_propertyMap[numCSSProperties];
};
}
#endif // CSSStyleApplyProperty_h
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