1/*
2 * Copyright (C) 2017 Igalia S.L.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "GridPosition.h"
33
34namespace WebCore {
35
36Optional<int> GridPosition::gMaxPositionForTesting;
37static const int kGridMaxPosition = 1000000;
38
39void GridPosition::setExplicitPosition(int position, const String& namedGridLine)
40{
41 m_type = ExplicitPosition;
42 setIntegerPosition(position);
43 m_namedGridLine = namedGridLine;
44}
45
46void GridPosition::setAutoPosition()
47{
48 m_type = AutoPosition;
49 m_integerPosition = 0;
50}
51
52// 'span' values cannot be negative, yet we reuse the <integer> position which can
53// be. This means that we have to convert the span position to an integer, losing
54// some precision here. It shouldn't be an issue in practice though.
55void GridPosition::setSpanPosition(int position, const String& namedGridLine)
56{
57 m_type = SpanPosition;
58 setIntegerPosition(position);
59 m_namedGridLine = namedGridLine;
60}
61
62void GridPosition::setNamedGridArea(const String& namedGridArea)
63{
64 m_type = NamedGridAreaPosition;
65 m_namedGridLine = namedGridArea;
66}
67
68int GridPosition::integerPosition() const
69{
70 ASSERT(type() == ExplicitPosition);
71 return m_integerPosition;
72}
73
74String GridPosition::namedGridLine() const
75{
76 ASSERT(type() == ExplicitPosition || type() == SpanPosition || type() == NamedGridAreaPosition);
77 return m_namedGridLine;
78}
79
80int GridPosition::spanPosition() const
81{
82 ASSERT(type() == SpanPosition);
83 return m_integerPosition;
84}
85
86int GridPosition::max()
87{
88 return gMaxPositionForTesting.valueOr(kGridMaxPosition);
89}
90
91int GridPosition::min()
92{
93 return -max();
94}
95
96bool GridPosition::operator==(const GridPosition& other) const
97{
98 return m_type == other.m_type && m_integerPosition == other.m_integerPosition && m_namedGridLine == other.m_namedGridLine;
99}
100
101void GridPosition::setMaxPositionForTesting(unsigned maxPosition)
102{
103 gMaxPositionForTesting = static_cast<int>(maxPosition);
104}
105
106} // namespace WebCore
107