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Side by Side Diff: sky/engine/core/rendering/style/GridTrackSize.h

Issue 689853003: Remove CSS Grid Layout and grid media queries. (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 6 years, 1 month ago
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1 /*
2 * Copyright (C) 2012 Google Inc. All rights reserved.
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 #ifndef GridTrackSize_h
32 #define GridTrackSize_h
33
34 #include "core/rendering/style/GridLength.h"
35
36 namespace blink {
37
38 enum GridTrackSizeType {
39 LengthTrackSizing,
40 MinMaxTrackSizing
41 };
42
43 class GridTrackSize {
44 public:
45 GridTrackSize(const GridLength& length)
46 : m_type(LengthTrackSizing)
47 , m_minTrackBreadth(length)
48 , m_maxTrackBreadth(length)
49 , m_minTrackBreadthIsMinOrMaxContent(false)
50 , m_minTrackBreadthIsMaxContent(false)
51 , m_maxTrackBreadthIsMinOrMaxContent(false)
52 , m_maxTrackBreadthIsMaxContent(false)
53 {
54 cacheMinMaxTrackBreadthTypes();
55 }
56
57 GridTrackSize(const GridLength& minTrackBreadth, const GridLength& maxTrackB readth)
58 : m_type(MinMaxTrackSizing)
59 , m_minTrackBreadth(minTrackBreadth)
60 , m_maxTrackBreadth(maxTrackBreadth)
61 , m_minTrackBreadthIsMinOrMaxContent(false)
62 , m_minTrackBreadthIsMaxContent(false)
63 , m_maxTrackBreadthIsMinOrMaxContent(false)
64 , m_maxTrackBreadthIsMaxContent(false)
65 {
66 cacheMinMaxTrackBreadthTypes();
67 }
68
69 const GridLength& length() const
70 {
71 ASSERT(m_type == LengthTrackSizing);
72 ASSERT(m_minTrackBreadth == m_maxTrackBreadth);
73 const GridLength& minTrackBreadth = m_minTrackBreadth;
74 return minTrackBreadth;
75 }
76
77 const GridLength& minTrackBreadth() const
78 {
79 if (m_minTrackBreadth.isLength() && m_minTrackBreadth.length().isAuto()) {
80 DEFINE_STATIC_LOCAL(GridLength, minContent, (Length(MinContent)));
81 return minContent;
82 }
83 return m_minTrackBreadth;
84 }
85
86 const GridLength& maxTrackBreadth() const
87 {
88 if (m_maxTrackBreadth.isLength() && m_maxTrackBreadth.length().isAuto()) {
89 DEFINE_STATIC_LOCAL(GridLength, maxContent, (Length(MaxContent)));
90 return maxContent;
91 }
92 return m_maxTrackBreadth;
93 }
94
95 GridTrackSizeType type() const { return m_type; }
96
97 bool isContentSized() const { return m_minTrackBreadth.isContentSized() || m _maxTrackBreadth.isContentSized(); }
98
99 bool isPercentage() const { return m_type == LengthTrackSizing && length().i sLength() && length().length().isPercent(); }
100
101 bool operator==(const GridTrackSize& other) const
102 {
103 return m_type == other.m_type && m_minTrackBreadth == other.m_minTrackBr eadth && m_maxTrackBreadth == other.m_maxTrackBreadth;
104 }
105
106 void cacheMinMaxTrackBreadthTypes()
107 {
108 m_minTrackBreadthIsMaxContent = minTrackBreadth().isLength() && minTrack Breadth().length().isMaxContent();
109 m_minTrackBreadthIsMinOrMaxContent = m_minTrackBreadthIsMaxContent || (m inTrackBreadth().isLength() && minTrackBreadth().length().isMinContent());
110 m_maxTrackBreadthIsMaxContent = maxTrackBreadth().isLength() && maxTrack Breadth().length().isMaxContent();
111 m_maxTrackBreadthIsMinOrMaxContent = m_maxTrackBreadthIsMaxContent || (m axTrackBreadth().isLength() && maxTrackBreadth().length().isMinContent());
112 }
113
114 bool hasMinOrMaxContentMinTrackBreadth() const { return m_minTrackBreadthIsM inOrMaxContent; }
115 bool hasMaxContentMinTrackBreadth() const { return m_minTrackBreadthIsMaxCon tent; }
116 bool hasMinOrMaxContentMaxTrackBreadth() const { return m_maxTrackBreadthIsM inOrMaxContent; }
117 bool hasMaxContentMaxTrackBreadth() const { return m_maxTrackBreadthIsMaxCon tent; }
118
119 private:
120 GridTrackSizeType m_type;
121 GridLength m_minTrackBreadth;
122 GridLength m_maxTrackBreadth;
123 bool m_minTrackBreadthIsMinOrMaxContent;
124 bool m_minTrackBreadthIsMaxContent;
125 bool m_maxTrackBreadthIsMinOrMaxContent;
126 bool m_maxTrackBreadthIsMaxContent;
127 };
128
129 } // namespace blink
130
131 #endif // GridTrackSize_h
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