2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
24 #include "core/css/CSSPrimitiveValue.h"
25 #include "wtf/PassRefPtr.h"
26 #include "wtf/RefCounted.h"
27 #include "wtf/text/StringBuilder.h"
31 // A primitive value representing a pair. This is useful for properties like border-radius, background-size/position,
32 // and border-spacing (all of which are space-separated sets of two values). At the moment we are only using it for
33 // border-radius and background-size, but (FIXME) border-spacing and background-position could be converted over to use
34 // it (eliminating some extra -webkit- internal properties).
35 class Pair FINAL : public RefCounted<Pair> {
37 enum IdenticalValuesPolicy { DropIdenticalValues, KeepIdenticalValues };
39 static PassRefPtr<Pair> create()
41 return adoptRef(new Pair);
43 static PassRefPtr<Pair> create(PassRefPtr<CSSPrimitiveValue> first, PassRefPtr<CSSPrimitiveValue> second, IdenticalValuesPolicy identicalValuesPolicy)
45 return adoptRef(new Pair(first, second, identicalValuesPolicy));
48 CSSPrimitiveValue* first() const { return m_first.get(); }
49 CSSPrimitiveValue* second() const { return m_second.get(); }
50 IdenticalValuesPolicy identicalValuesPolicy() const { return m_identicalValuesPolicy; }
52 void setFirst(PassRefPtr<CSSPrimitiveValue> first) { m_first = first; }
53 void setSecond(PassRefPtr<CSSPrimitiveValue> second) { m_second = second; }
54 void setIdenticalValuesPolicy(IdenticalValuesPolicy identicalValuesPolicy) { m_identicalValuesPolicy = identicalValuesPolicy; }
56 String cssText() const
58 return generateCSSString(first()->cssText(), second()->cssText(), m_identicalValuesPolicy);
61 bool equals(const Pair& other) const
63 return compareCSSValuePtr(m_first, other.m_first)
64 && compareCSSValuePtr(m_second, other.m_second)
65 && m_identicalValuesPolicy == other.m_identicalValuesPolicy;
68 String serializeResolvingVariables(const HashMap<AtomicString, String>& variables) const
70 return generateCSSString(
71 first()->customSerializeResolvingVariables(variables),
72 second()->customSerializeResolvingVariables(variables),
73 m_identicalValuesPolicy);
76 bool hasVariableReference() const { return first()->hasVariableReference() || second()->hasVariableReference(); }
82 , m_identicalValuesPolicy(DropIdenticalValues) { }
84 Pair(PassRefPtr<CSSPrimitiveValue> first, PassRefPtr<CSSPrimitiveValue> second, IdenticalValuesPolicy identicalValuesPolicy)
87 , m_identicalValuesPolicy(identicalValuesPolicy) { }
89 static String generateCSSString(const String& first, const String& second, IdenticalValuesPolicy identicalValuesPolicy)
91 if (identicalValuesPolicy == DropIdenticalValues && first == second)
93 return first + ' ' + second;
96 RefPtr<CSSPrimitiveValue> m_first;
97 RefPtr<CSSPrimitiveValue> m_second;
98 IdenticalValuesPolicy m_identicalValuesPolicy;