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/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2005, 2006, 2015 Apple Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef Pair_h
#define Pair_h
#include <wtf/RefCounted.h>
#include "CSSPrimitiveValue.h"
#include <wtf/PassRefPtr.h>
#include <wtf/text/StringBuilder.h>
namespace WebCore {
// A primitive value representing a pair. This is useful for properties like border-radius, background-size/position,
// and border-spacing (all of which are space-separated sets of two values). At the moment we are only using it for
// border-radius and background-size, but (FIXME) border-spacing and background-position could be converted over to use
// it (eliminating some extra -webkit- internal properties).
class Pair : public RefCounted<Pair> {
public:
enum class IdenticalValueEncoding {
DoNotCoalesce,
Coalesce
};
static Ref<Pair> create(RefPtr<CSSPrimitiveValue>&& first, RefPtr<CSSPrimitiveValue>&& second)
{
return adoptRef(*new Pair(WTFMove(first), WTFMove(second)));
}
static Ref<Pair> create(RefPtr<CSSPrimitiveValue>&& first, RefPtr<CSSPrimitiveValue>&& second, IdenticalValueEncoding encoding)
{
return adoptRef(*new Pair(WTFMove(first), WTFMove(second), encoding));
}
virtual ~Pair() { }
CSSPrimitiveValue* first() const { return m_first.get(); }
CSSPrimitiveValue* second() const { return m_second.get(); }
String cssText() const
{
String first = this->first()->cssText();
String second = this->second()->cssText();
if (m_encoding == IdenticalValueEncoding::Coalesce && first == second)
return first;
return first + ' ' + second;
}
bool equals(const Pair& other) const { return compareCSSValuePtr(m_first, other.m_first) && compareCSSValuePtr(m_second, other.m_second); }
private:
Pair(RefPtr<CSSPrimitiveValue>&& first, RefPtr<CSSPrimitiveValue>&& second) : m_first(WTFMove(first)), m_second(WTFMove(second)) { }
Pair(RefPtr<CSSPrimitiveValue>&& first, RefPtr<CSSPrimitiveValue>&& second, IdenticalValueEncoding encoding) : m_first(WTFMove(first)), m_second(WTFMove(second)), m_encoding(encoding) { }
RefPtr<CSSPrimitiveValue> m_first;
RefPtr<CSSPrimitiveValue> m_second;
IdenticalValueEncoding m_encoding { IdenticalValueEncoding::Coalesce };
};
} // namespace
#endif
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