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/*
* Copyright (C) 2015 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. ``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
* 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 "CSSValue.h"
#include "CSSVariableData.h"
#include <wtf/RefPtr.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class CSSCustomPropertyValue final : public CSSValue {
public:
static Ref<CSSCustomPropertyValue> createWithVariableData(const AtomicString& name, Ref<CSSVariableData>&& value)
{
return adoptRef(*new CSSCustomPropertyValue(name, WTFMove(value)));
}
static Ref<CSSCustomPropertyValue> createWithID(const AtomicString& name, CSSValueID value)
{
return adoptRef(*new CSSCustomPropertyValue(name, value));
}
static Ref<CSSCustomPropertyValue> createInvalid()
{
return adoptRef(*new CSSCustomPropertyValue(emptyString(), emptyString()));
}
String customCSSText() const
{
if (!m_serialized) {
m_serialized = true;
if (m_value)
m_stringValue = m_value->tokenRange().serialize();
else if (m_valueId != CSSValueInvalid)
m_stringValue = getValueName(m_valueId);
else
m_stringValue = emptyString();
}
return m_stringValue;
}
const AtomicString& name() const { return m_name; }
bool equals(const CSSCustomPropertyValue& other) const { return m_name == other.m_name && m_value == other.m_value && m_valueId == other.m_valueId; }
bool containsVariables() const { return m_containsVariables; }
bool checkVariablesForCycles(const AtomicString& name, CustomPropertyValueMap&, HashSet<AtomicString>& seenProperties, HashSet<AtomicString>& invalidProperties) const;
void resolveVariableReferences(const CustomPropertyValueMap&, Vector<Ref<CSSCustomPropertyValue>>&) const;
CSSValueID valueID() const { return m_valueId; }
CSSVariableData* value() const { return m_value.get(); }
private:
CSSCustomPropertyValue(const AtomicString& name, const String& serializedValue)
: CSSValue(CustomPropertyClass)
, m_name(name)
, m_stringValue(serializedValue)
, m_serialized(true)
{
}
CSSCustomPropertyValue(const AtomicString& name, CSSValueID id)
: CSSValue(CustomPropertyClass)
, m_name(name)
, m_valueId(id)
{
ASSERT(id == CSSValueInherit || id == CSSValueInitial || id == CSSValueUnset || id == CSSValueRevert || id == CSSValueInvalid);
}
CSSCustomPropertyValue(const AtomicString& name, Ref<CSSVariableData>&& value)
: CSSValue(CustomPropertyClass)
, m_name(name)
, m_value(WTFMove(value))
, m_valueId(CSSValueInternalVariableValue)
, m_containsVariables(m_value->needsVariableResolution())
{
}
const AtomicString m_name;
RefPtr<CSSVariableData> m_value;
CSSValueID m_valueId { CSSValueInvalid };
mutable String m_stringValue;
bool m_containsVariables { false };
mutable bool m_serialized { false };
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSCustomPropertyValue, isCustomPropertyValue())
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