Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * (C) 1999-2003 Lars Knoll (knoll@kde.org) |
| 3 | * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. |
| 4 | * |
| 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. |
| 9 | * |
| 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. |
| 14 | * |
| 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. |
| 19 | */ |
| 20 | |
| 21 | #ifndef Pair_h |
| 22 | #define Pair_h |
| 23 | |
| 24 | #include "core/css/CSSPrimitiveValue.h" |
| 25 | #include <wtf/PassRefPtr.h> |
| 26 | #include <wtf/RefCounted.h> |
| 27 | #include <wtf/text/StringBuilder.h> |
| 28 | |
| 29 | namespace WebCore { |
| 30 | |
| 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 : public RefCounted<Pair> { |
| 36 | public: |
| 37 | static PassRefPtr<Pair> create() |
| 38 | { |
| 39 | return adoptRef(new Pair); |
| 40 | } |
| 41 | static PassRefPtr<Pair> create(PassRefPtr<CSSPrimitiveValue> first, PassRefPtr<CSSPrimitiveValue> second) |
| 42 | { |
| 43 | return adoptRef(new Pair(first, second)); |
| 44 | } |
| 45 | virtual ~Pair() { } |
| 46 | |
| 47 | CSSPrimitiveValue* first() const { return m_first.get(); } |
| 48 | CSSPrimitiveValue* second() const { return m_second.get(); } |
| 49 | |
| 50 | void setFirst(PassRefPtr<CSSPrimitiveValue> first) { m_first = first; } |
| 51 | void setSecond(PassRefPtr<CSSPrimitiveValue> second) { m_second = second; } |
| 52 | |
| 53 | String cssText() const |
| 54 | { |
| 55 | |
| 56 | return generateCSSString(first()->cssText(), second()->cssText()); |
| 57 | } |
| 58 | |
| 59 | bool equals(const Pair& other) const { return compareCSSValuePtr(m_first, other.m_first) && compareCSSValuePtr(m_second, other.m_second); } |
| 60 | |
| 61 | String serializeResolvingVariables(const HashMap<AtomicString, String>& variables) const |
| 62 | { |
| 63 | return generateCSSString(first()->customSerializeResolvingVariables(variables), |
| 64 | second()->customSerializeResolvingVariables(variables)); |
| 65 | } |
| 66 | |
| 67 | bool hasVariableReference() const { return first()->hasVariableReference() || second()->hasVariableReference(); } |
| 68 | |
| 69 | private: |
| 70 | Pair() : m_first(0), m_second(0) { } |
| 71 | Pair(PassRefPtr<CSSPrimitiveValue> first, PassRefPtr<CSSPrimitiveValue> second) |
| 72 | : m_first(first), m_second(second) { } |
| 73 | |
| 74 | static String generateCSSString(const String& first, const String& second) |
| 75 | { |
| 76 | if (first == second) |
| 77 | return first; |
| 78 | return first + ' ' + second; |
| 79 | } |
| 80 | |
| 81 | RefPtr<CSSPrimitiveValue> m_first; |
| 82 | RefPtr<CSSPrimitiveValue> m_second; |
| 83 | }; |
| 84 | |
| 85 | } // namespace |
| 86 | |
| 87 | #endif |