forked from flutter/flutter
/
button_template.dart
166 lines (137 loc) · 5.19 KB
/
button_template.dart
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'template.dart';
class ButtonTemplate extends TokenTemplate {
const ButtonTemplate(this.tokenGroup, super.blockName, super.fileName, super.tokens, {
super.colorSchemePrefix = '_colors.',
});
final String tokenGroup;
String _backgroundColor() {
if (tokens.containsKey('$tokenGroup.container.color')) {
return '''
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
if (states.contains(MaterialState.disabled)) {
return ${componentColor('$tokenGroup.disabled.container')};
}
return ${componentColor('$tokenGroup.container')};
})''';
}
return '''
const MaterialStatePropertyAll<Color>(Colors.transparent)''';
}
String _elevation() {
if (tokens.containsKey('$tokenGroup.container.elevation')) {
return '''
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
if (states.contains(MaterialState.disabled)) {
return ${elevation("$tokenGroup.disabled.container")};
}
if (states.contains(MaterialState.hovered)) {
return ${elevation("$tokenGroup.hover.container")};
}
if (states.contains(MaterialState.focused)) {
return ${elevation("$tokenGroup.focus.container")};
}
if (states.contains(MaterialState.pressed)) {
return ${elevation("$tokenGroup.pressed.container")};
}
return ${elevation("$tokenGroup.container")};
})''';
}
return '''
const MaterialStatePropertyAll<double>(0.0)''';
}
String _elevationColor(String token) {
if (tokens.containsKey(token)) {
return 'MaterialStatePropertyAll<Color>(${color(token)})';
} else {
return 'const MaterialStatePropertyAll<Color>(Colors.transparent)';
}
}
@override
String generate() => '''
class _${blockName}DefaultsM3 extends ButtonStyle {
_${blockName}DefaultsM3(this.context)
: super(
animationDuration: kThemeChangeDuration,
enableFeedback: true,
alignment: Alignment.center,
);
final BuildContext context;
late final ColorScheme _colors = Theme.of(context).colorScheme;
@override
MaterialStateProperty<TextStyle?> get textStyle =>
MaterialStatePropertyAll<TextStyle?>(${textStyle("$tokenGroup.label-text")});
@override
MaterialStateProperty<Color?>? get backgroundColor =>${_backgroundColor()};
@override
MaterialStateProperty<Color?>? get foregroundColor =>
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
if (states.contains(MaterialState.disabled)) {
return ${componentColor('$tokenGroup.disabled.label-text')};
}
return ${componentColor('$tokenGroup.label-text')};
});
@override
MaterialStateProperty<Color?>? get overlayColor =>
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
if (states.contains(MaterialState.hovered)) {
return ${componentColor('$tokenGroup.hover.state-layer')};
}
if (states.contains(MaterialState.focused)) {
return ${componentColor('$tokenGroup.focus.state-layer')};
}
if (states.contains(MaterialState.pressed)) {
return ${componentColor('$tokenGroup.pressed.state-layer')};
}
return null;
});
@override
MaterialStateProperty<Color>? get shadowColor =>
${_elevationColor("$tokenGroup.container.shadow-color")};
@override
MaterialStateProperty<Color>? get surfaceTintColor =>
${_elevationColor("$tokenGroup.container.surface-tint-layer.color")};
@override
MaterialStateProperty<double>? get elevation =>${_elevation()};
@override
MaterialStateProperty<EdgeInsetsGeometry>? get padding =>
MaterialStatePropertyAll<EdgeInsetsGeometry>(_scaledPadding(context));
@override
MaterialStateProperty<Size>? get minimumSize =>
const MaterialStatePropertyAll<Size>(Size(64.0, ${tokens["$tokenGroup.container.height"]}));
// No default fixedSize
@override
MaterialStateProperty<Size>? get maximumSize =>
const MaterialStatePropertyAll<Size>(Size.infinite);
${tokens.containsKey("$tokenGroup.outline.color") ? '''
@override
MaterialStateProperty<BorderSide>? get side =>
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
if (states.contains(MaterialState.disabled)) {
return ${border("$tokenGroup.disabled.outline")};
}
return ${border("$tokenGroup.outline")};
});''' : '''
// No default side'''}
@override
MaterialStateProperty<OutlinedBorder>? get shape =>
const MaterialStatePropertyAll<OutlinedBorder>(${shape("$tokenGroup.container", '')});
@override
MaterialStateProperty<MouseCursor?>? get mouseCursor =>
MaterialStateProperty.resolveWith((Set<MaterialState> states) {
if (states.contains(MaterialState.disabled)) {
return SystemMouseCursors.basic;
}
return SystemMouseCursors.click;
});
@override
VisualDensity? get visualDensity => Theme.of(context).visualDensity;
@override
MaterialTapTargetSize? get tapTargetSize => Theme.of(context).materialTapTargetSize;
@override
InteractiveInkFeatureFactory? get splashFactory => Theme.of(context).splashFactory;
}
''';
}