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66a84d1fed
* Added standard IconButton for M3 with new ButtonStyle field * Added IconButton examples for standard, filled, filled_tonal, and outlined types Co-authored-by: Qun Cheng <quncheng@google.com>
100 lines
3.2 KiB
Dart
100 lines
3.2 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'template.dart';
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class IconButtonTemplate extends TokenTemplate {
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const IconButtonTemplate(super.fileName, super.tokens)
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: super(colorSchemePrefix: '_colors.',
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);
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@override
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String generate() => '''
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// Generated version ${tokens["version"]}
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class _TokenDefaultsM3 extends ButtonStyle {
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_TokenDefaultsM3(this.context)
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: super(
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animationDuration: kThemeChangeDuration,
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enableFeedback: true,
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alignment: Alignment.center,
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);
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final BuildContext context;
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late final ColorScheme _colors = Theme.of(context).colorScheme;
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// No default text style
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@override
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MaterialStateProperty<Color?>? get backgroundColor =>
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ButtonStyleButton.allOrNull<Color>(Colors.transparent);
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@override
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MaterialStateProperty<Color?>? get foregroundColor =>
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MaterialStateProperty.resolveWith((Set<MaterialState> states) {
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if (states.contains(MaterialState.disabled))
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return ${componentColor('md.comp.icon-button.disabled.icon')};
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return ${componentColor('md.comp.icon-button.unselected.icon')};
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});
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@override
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MaterialStateProperty<Color?>? get overlayColor =>
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MaterialStateProperty.resolveWith((Set<MaterialState> states) {
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if (states.contains(MaterialState.hovered))
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return ${componentColor('md.comp.icon-button.unselected.hover.state-layer')};
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if (states.contains(MaterialState.focused))
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return ${componentColor('md.comp.icon-button.unselected.focus.state-layer')};
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if (states.contains(MaterialState.pressed))
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return ${componentColor('md.comp.icon-button.unselected.pressed.state-layer')};
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return null;
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});
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// No default shadow color
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// No default surface tint color
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@override
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MaterialStateProperty<double>? get elevation =>
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ButtonStyleButton.allOrNull<double>(0.0);
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@override
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MaterialStateProperty<EdgeInsetsGeometry>? get padding =>
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ButtonStyleButton.allOrNull<EdgeInsetsGeometry>(const EdgeInsets.all(8.0));
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@override
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MaterialStateProperty<Size>? get minimumSize =>
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ButtonStyleButton.allOrNull<Size>(const Size(${tokens["md.comp.icon-button.state-layer.size"]}, ${tokens["md.comp.icon-button.state-layer.size"]}));
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// No default fixedSize
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@override
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MaterialStateProperty<Size>? get maximumSize =>
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ButtonStyleButton.allOrNull<Size>(Size.infinite);
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// No default side
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@override
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MaterialStateProperty<OutlinedBorder>? get shape =>
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ButtonStyleButton.allOrNull<OutlinedBorder>(${shape("md.comp.icon-button.state-layer")});
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@override
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MaterialStateProperty<MouseCursor?>? get mouseCursor =>
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MaterialStateProperty.resolveWith((Set<MaterialState> states) {
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if (states.contains(MaterialState.disabled))
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return SystemMouseCursors.basic;
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return SystemMouseCursors.click;
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});
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@override
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VisualDensity? get visualDensity => Theme.of(context).visualDensity;
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@override
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MaterialTapTargetSize? get tapTargetSize => Theme.of(context).materialTapTargetSize;
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@override
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InteractiveInkFeatureFactory? get splashFactory => Theme.of(context).splashFactory;
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}
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''';
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}
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