#ifndef Pair_h
#define Pair_h
#include <wtf/RefCounted.h>
#include "CSSPrimitiveValue.h"
#include <wtf/PassRefPtr.h>
#include <wtf/text/StringBuilder.h>
namespace WebCore {
class Pair : public RefCounted<Pair> {
public:
static PassRefPtr<Pair> create()
{
return adoptRef(new Pair);
}
static PassRefPtr<Pair> create(PassRefPtr<CSSPrimitiveValue> first, PassRefPtr<CSSPrimitiveValue> second)
{
return adoptRef(new Pair(first, second));
}
virtual ~Pair() { }
CSSPrimitiveValue* first() const { return m_first.get(); }
CSSPrimitiveValue* second() const { return m_second.get(); }
void setFirst(PassRefPtr<CSSPrimitiveValue> first) { m_first = first; }
void setSecond(PassRefPtr<CSSPrimitiveValue> second) { m_second = second; }
String cssText() const
{
return generateCSSString(first()->cssText(), second()->cssText());
}
bool equals(const Pair& other) const { return compareCSSValuePtr(m_first, other.m_first) && compareCSSValuePtr(m_second, other.m_second); }
#if ENABLE(CSS_VARIABLES)
String serializeResolvingVariables(const HashMap<AtomicString, String>& variables) const
{
return generateCSSString(first()->customSerializeResolvingVariables(variables),
second()->customSerializeResolvingVariables(variables));
}
bool hasVariableReference() const { return first()->hasVariableReference() || second()->hasVariableReference(); }
#endif
private:
Pair() : m_first(0), m_second(0) { }
Pair(PassRefPtr<CSSPrimitiveValue> first, PassRefPtr<CSSPrimitiveValue> second)
: m_first(first), m_second(second) { }
static String generateCSSString(const String& first, const String& second)
{
if (first == second)
return first;
return first + ' ' + second;
}
RefPtr<CSSPrimitiveValue> m_first;
RefPtr<CSSPrimitiveValue> m_second;
};
}
#endif