80 lines
3.0 KiB
C++
80 lines
3.0 KiB
C++
/*
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* (C) 1999-2003 Lars Knoll (knoll@kde.org)
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* Copyright (C) 2004, 2005, 2006, 2015 Apple Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include <wtf/RefCounted.h>
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namespace WebCore {
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class CSSPrimitiveValue;
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// A primitive value representing a pair. This is useful for properties like border-radius, background-size/position,
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// and border-spacing (all of which are space-separated sets of two values). At the moment we are only using it for
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// border-radius and background-size, but (FIXME) border-spacing and background-position could be converted over to use
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// it (eliminating some extra -webkit- internal properties).
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class Pair : public RefCounted<Pair> {
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public:
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enum class IdenticalValueEncoding : uint8_t {
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DoNotCoalesce,
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Coalesce
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};
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static Ref<Pair> create(RefPtr<CSSPrimitiveValue>&& first, RefPtr<CSSPrimitiveValue>&& second)
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{
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return adoptRef(*new Pair(WTFMove(first), WTFMove(second)));
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}
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static Ref<Pair> create(RefPtr<CSSPrimitiveValue>&& first, RefPtr<CSSPrimitiveValue>&& second, IdenticalValueEncoding encoding)
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{
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return adoptRef(*new Pair(WTFMove(first), WTFMove(second), encoding));
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}
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CSSPrimitiveValue* first() const { return m_first.get(); }
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CSSPrimitiveValue* second() const { return m_second.get(); }
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String cssText() const
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{
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String first = this->first()->cssText();
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String second = this->second()->cssText();
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if (m_encoding == IdenticalValueEncoding::Coalesce && first == second)
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return first;
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return first + ' ' + second;
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}
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bool equals(const Pair& other) const { return compareCSSValuePtr(m_first, other.m_first) && compareCSSValuePtr(m_second, other.m_second); }
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private:
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Pair(RefPtr<CSSPrimitiveValue>&& first, RefPtr<CSSPrimitiveValue>&& second)
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: m_first(WTFMove(first))
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, m_second(WTFMove(second))
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{ }
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Pair(RefPtr<CSSPrimitiveValue>&& first, RefPtr<CSSPrimitiveValue>&& second, IdenticalValueEncoding encoding)
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: m_encoding(encoding)
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, m_first(WTFMove(first))
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, m_second(WTFMove(second))
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{ }
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IdenticalValueEncoding m_encoding { IdenticalValueEncoding::Coalesce };
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RefPtr<CSSPrimitiveValue> m_first;
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RefPtr<CSSPrimitiveValue> m_second;
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};
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} // namespace
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