mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
91 lines
3.6 KiB
C++
91 lines
3.6 KiB
C++
/*
|
|
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
|
|
* Copyright (C) 2004, 2005, 2006 Apple Computer, 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 SKY_ENGINE_CORE_CSS_PAIR_H_
|
|
#define SKY_ENGINE_CORE_CSS_PAIR_H_
|
|
|
|
#include "sky/engine/core/css/CSSPrimitiveValue.h"
|
|
#include "sky/engine/wtf/PassRefPtr.h"
|
|
#include "sky/engine/wtf/RefCounted.h"
|
|
#include "sky/engine/wtf/text/StringBuilder.h"
|
|
|
|
namespace blink {
|
|
|
|
// 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 final : public RefCounted<Pair> {
|
|
public:
|
|
enum IdenticalValuesPolicy { DropIdenticalValues, KeepIdenticalValues };
|
|
|
|
static PassRefPtr<Pair> create(PassRefPtr<CSSPrimitiveValue> first, PassRefPtr<CSSPrimitiveValue> second,
|
|
IdenticalValuesPolicy identicalValuesPolicy)
|
|
{
|
|
return adoptRef(new Pair(first, second, identicalValuesPolicy));
|
|
}
|
|
|
|
CSSPrimitiveValue* first() const { return m_first.get(); }
|
|
CSSPrimitiveValue* second() const { return m_second.get(); }
|
|
IdenticalValuesPolicy identicalValuesPolicy() const { return m_identicalValuesPolicy; }
|
|
|
|
void setFirst(PassRefPtr<CSSPrimitiveValue> first) { m_first = first; }
|
|
void setSecond(PassRefPtr<CSSPrimitiveValue> second) { m_second = second; }
|
|
void setIdenticalValuesPolicy(IdenticalValuesPolicy identicalValuesPolicy) { m_identicalValuesPolicy = identicalValuesPolicy; }
|
|
|
|
String cssText() const
|
|
{
|
|
return generateCSSString(first()->cssText(), second()->cssText(), m_identicalValuesPolicy);
|
|
}
|
|
|
|
bool equals(const Pair& other) const
|
|
{
|
|
return compareCSSValuePtr(m_first, other.m_first)
|
|
&& compareCSSValuePtr(m_second, other.m_second)
|
|
&& m_identicalValuesPolicy == other.m_identicalValuesPolicy;
|
|
}
|
|
|
|
private:
|
|
Pair()
|
|
: m_first(nullptr)
|
|
, m_second(nullptr)
|
|
, m_identicalValuesPolicy(DropIdenticalValues) { }
|
|
|
|
Pair(PassRefPtr<CSSPrimitiveValue> first, PassRefPtr<CSSPrimitiveValue> second, IdenticalValuesPolicy identicalValuesPolicy)
|
|
: m_first(first)
|
|
, m_second(second)
|
|
, m_identicalValuesPolicy(identicalValuesPolicy) { }
|
|
|
|
static String generateCSSString(const String& first, const String& second, IdenticalValuesPolicy identicalValuesPolicy)
|
|
{
|
|
if (identicalValuesPolicy == DropIdenticalValues && first == second)
|
|
return first;
|
|
return first + ' ' + second;
|
|
}
|
|
|
|
RefPtr<CSSPrimitiveValue> m_first;
|
|
RefPtr<CSSPrimitiveValue> m_second;
|
|
IdenticalValuesPolicy m_identicalValuesPolicy;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
#endif // SKY_ENGINE_CORE_CSS_PAIR_H_
|