Move parseFontFaceDescriptor to CSSPropertyParser.cpp
[chromium-blink-merge.git] / third_party / WebKit / Source / core / style / GridPosition.h
blob255c6b9108a7b028e141cad51df1a36ce2c29ed2
1 /*
2 * Copyright (C) 2012 Google Inc. All rights reserved.
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31 #ifndef GridPosition_h
32 #define GridPosition_h
34 #include "wtf/Allocator.h"
35 #include "wtf/text/WTFString.h"
37 namespace blink {
39 enum GridPositionType {
40 AutoPosition,
41 ExplicitPosition, // [ <integer> || <string> ]
42 SpanPosition, // span && [ <integer> || <string> ]
43 NamedGridAreaPosition // <ident>
46 class GridPosition {
47 DISALLOW_ALLOCATION();
48 public:
49 GridPosition()
50 : m_type(AutoPosition)
51 , m_integerPosition(0)
55 bool isPositive() const { return integerPosition() > 0; }
57 GridPositionType type() const { return m_type; }
58 bool isAuto() const { return m_type == AutoPosition; }
59 bool isSpan() const { return m_type == SpanPosition; }
60 bool isNamedGridArea() const { return m_type == NamedGridAreaPosition; }
62 void setExplicitPosition(int position, const String& namedGridLine)
64 m_type = ExplicitPosition;
65 m_integerPosition = position;
66 m_namedGridLine = namedGridLine;
69 void setAutoPosition()
71 m_type = AutoPosition;
72 m_integerPosition = 0;
75 // 'span' values cannot be negative, yet we reuse the <integer> position which can
76 // be. This means that we have to convert the span position to an integer, losing
77 // some precision here. It shouldn't be an issue in practice though.
78 void setSpanPosition(int position, const String& namedGridLine)
80 m_type = SpanPosition;
81 m_integerPosition = position;
82 m_namedGridLine = namedGridLine;
85 void setNamedGridArea(const String& namedGridArea)
87 m_type = NamedGridAreaPosition;
88 m_namedGridLine = namedGridArea;
91 int integerPosition() const
93 ASSERT(type() == ExplicitPosition);
94 return m_integerPosition;
97 String namedGridLine() const
99 ASSERT(type() == ExplicitPosition || type() == SpanPosition || type() == NamedGridAreaPosition);
100 return m_namedGridLine;
103 int spanPosition() const
105 ASSERT(type() == SpanPosition);
106 return m_integerPosition;
109 bool operator==(const GridPosition& other) const
111 return m_type == other.m_type && m_integerPosition == other.m_integerPosition && m_namedGridLine == other.m_namedGridLine;
114 bool shouldBeResolvedAgainstOppositePosition() const
116 return isAuto() || isSpan();
118 private:
119 GridPositionType m_type;
120 int m_integerPosition;
121 String m_namedGridLine;
124 } // namespace blink
126 #endif // GridPosition_h