flutter/dev/tools/gen_defaults/lib/navigation_drawer_template.dart
Qun Cheng a2c7ed95d1
Introduce tone-based surfaces and accent color add-ons - Part 2 (#138521)
This PR is to introduce 19 new color roles and deprecate 3 color roles in `ColorScheme`.
**Tone-based surface colors** (7 colors): 
* surfaceBright
* surfaceDim
* surfaceContainer
* surfaceContainerLowest
* surfaceContainerLow
* surfaceContainerHigh
* surfaceContainerHighest

**Accent color add-ons** (12 colors):
* primary/secondary/tertiary-Fixed
* primary/secondary/tertiary-FixedDim
* onPrimary/onSecondary/onTertiary-Fixed
* onPrimary/onSecondary/onTertiary-FixedVariant

**Deprecated colors**:
* background -> replaced with surface
* onBackground -> replaced with onSurface
* surfaceVariant -> replaced with surfaceContainerHighest

Please checkout this [design doc](https://docs.google.com/document/d/1ODqivpM_6c490T4j5XIiWCDKo5YqHy78YEFqDm4S8h4/edit?usp=sharing) for more information:)

![Screenshot 2024-01-08 at 4 56 51 PM](https://github.com/flutter/flutter/assets/36861262/353cdb4c-6ba9-4435-a518-fd3f67e415f0)
2024-02-20 19:01:50 +00:00

70 lines
2.7 KiB
Dart

// 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 NavigationDrawerTemplate extends TokenTemplate {
const NavigationDrawerTemplate(super.blockName, super.fileName, super.tokens, {
super.colorSchemePrefix = '_colors.',
super.textThemePrefix = '_textTheme.'
});
@override
String generate() => '''
class _${blockName}DefaultsM3 extends NavigationDrawerThemeData {
_${blockName}DefaultsM3(this.context)
: super(
elevation: ${elevation("md.comp.navigation-drawer.modal.container")},
tileHeight: ${getToken("md.comp.navigation-drawer.active-indicator.height")},
indicatorShape: ${shape("md.comp.navigation-drawer.active-indicator")},
indicatorSize: const Size(${getToken("md.comp.navigation-drawer.active-indicator.width")}, ${getToken("md.comp.navigation-drawer.active-indicator.height")}),
);
final BuildContext context;
late final ColorScheme _colors = Theme.of(context).colorScheme;
late final TextTheme _textTheme = Theme.of(context).textTheme;
@override
Color? get backgroundColor => ${componentColor("md.comp.navigation-drawer.modal.container")};
@override
Color? get surfaceTintColor => ${colorOrTransparent("md.comp.navigation-drawer.container.surface-tint-layer.color")};
@override
Color? get shadowColor => ${colorOrTransparent("md.comp.navigation-drawer.container.shadow-color")};
@override
Color? get indicatorColor => ${componentColor("md.comp.navigation-drawer.active-indicator")};
@override
MaterialStateProperty<IconThemeData?>? get iconTheme {
return MaterialStateProperty.resolveWith((Set<MaterialState> states) {
return IconThemeData(
size: ${getToken("md.comp.navigation-drawer.icon.size")},
color: states.contains(MaterialState.disabled)
? _colors.onSurfaceVariant.withOpacity(0.38)
: states.contains(MaterialState.selected)
? ${componentColor("md.comp.navigation-drawer.active.icon")}
: ${componentColor("md.comp.navigation-drawer.inactive.icon")},
);
});
}
@override
MaterialStateProperty<TextStyle?>? get labelTextStyle {
return MaterialStateProperty.resolveWith((Set<MaterialState> states) {
final TextStyle style = ${textStyle("md.comp.navigation-drawer.label-text")}!;
return style.apply(
color: states.contains(MaterialState.disabled)
? _colors.onSurfaceVariant.withOpacity(0.38)
: states.contains(MaterialState.selected)
? ${componentColor("md.comp.navigation-drawer.active.label-text")}
: ${componentColor("md.comp.navigation-drawer.inactive.label-text")},
);
});
}
}
''';
}