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118 lines
4.3 KiB
Dart
118 lines
4.3 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 AppBarTemplate extends TokenTemplate {
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const AppBarTemplate(super.blockName, super.fileName, super.tokens)
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: super(
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colorSchemePrefix: '_colors.',
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textThemePrefix: '_textTheme.',
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);
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@override
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String generate() => '''
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class _${blockName}DefaultsM3 extends AppBarTheme {
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_${blockName}DefaultsM3(this.context)
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: super(
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elevation: ${elevation('md.comp.top-app-bar.small.container')},
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scrolledUnderElevation: ${elevation('md.comp.top-app-bar.small.on-scroll.container')},
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titleSpacing: NavigationToolbar.kMiddleSpacing,
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toolbarHeight: ${tokens['md.comp.top-app-bar.small.container.height']},
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);
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final BuildContext context;
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late final ThemeData _theme = Theme.of(context);
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late final ColorScheme _colors = _theme.colorScheme;
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late final TextTheme _textTheme = _theme.textTheme;
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@override
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Color? get backgroundColor => ${componentColor('md.comp.top-app-bar.small.container')};
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@override
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Color? get foregroundColor => ${color('md.comp.top-app-bar.small.headline.color')};
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@override
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Color? get surfaceTintColor => ${componentColor('md.comp.top-app-bar.small.container.surface-tint-layer')};
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@override
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IconThemeData? get iconTheme => IconThemeData(
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color: ${componentColor('md.comp.top-app-bar.small.leading-icon')},
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size: ${tokens['md.comp.top-app-bar.small.leading-icon.size']},
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);
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@override
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IconThemeData? get actionsIconTheme => IconThemeData(
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color: ${componentColor('md.comp.top-app-bar.small.trailing-icon')},
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size: ${tokens['md.comp.top-app-bar.small.trailing-icon.size']},
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);
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@override
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TextStyle? get toolbarTextStyle => _textTheme.bodyMedium;
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@override
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TextStyle? get titleTextStyle => ${textStyle('md.comp.top-app-bar.small.headline')};
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}
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// Variant configuration
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class _MediumScrollUnderFlexibleConfig with _ScrollUnderFlexibleConfig {
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_MediumScrollUnderFlexibleConfig(this.context);
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final BuildContext context;
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late final ThemeData _theme = Theme.of(context);
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late final ColorScheme _colors = _theme.colorScheme;
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late final TextTheme _textTheme = _theme.textTheme;
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static const double collapsedHeight = ${tokens['md.comp.top-app-bar.small.container.height']};
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static const double expandedHeight = ${tokens['md.comp.top-app-bar.medium.container.height']};
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@override
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TextStyle? get collapsedTextStyle =>
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${textStyle('md.comp.top-app-bar.small.headline')}?.apply(color: ${color('md.comp.top-app-bar.small.headline.color')});
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@override
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TextStyle? get expandedTextStyle =>
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${textStyle('md.comp.top-app-bar.medium.headline')}?.apply(color: ${color('md.comp.top-app-bar.medium.headline.color')});
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@override
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EdgeInsetsGeometry? get collapsedTitlePadding => const EdgeInsetsDirectional.fromSTEB(48, 0, 16, 0);
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@override
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EdgeInsetsGeometry? get collapsedCenteredTitlePadding => const EdgeInsets.fromLTRB(16, 0, 16, 0);
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@override
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EdgeInsetsGeometry? get expandedTitlePadding => const EdgeInsets.fromLTRB(16, 0, 16, 20);
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}
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class _LargeScrollUnderFlexibleConfig with _ScrollUnderFlexibleConfig {
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_LargeScrollUnderFlexibleConfig(this.context);
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final BuildContext context;
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late final ThemeData _theme = Theme.of(context);
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late final ColorScheme _colors = _theme.colorScheme;
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late final TextTheme _textTheme = _theme.textTheme;
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static const double collapsedHeight = ${tokens['md.comp.top-app-bar.small.container.height']};
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static const double expandedHeight = ${tokens['md.comp.top-app-bar.large.container.height']};
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@override
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TextStyle? get collapsedTextStyle =>
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${textStyle('md.comp.top-app-bar.small.headline')}?.apply(color: ${color('md.comp.top-app-bar.small.headline.color')});
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@override
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TextStyle? get expandedTextStyle =>
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${textStyle('md.comp.top-app-bar.large.headline')}?.apply(color: ${color('md.comp.top-app-bar.large.headline.color')});
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@override
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EdgeInsetsGeometry? get collapsedTitlePadding => const EdgeInsetsDirectional.fromSTEB(48, 0, 16, 0);
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@override
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EdgeInsetsGeometry? get collapsedCenteredTitlePadding => const EdgeInsets.fromLTRB(16, 0, 16, 0);
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@override
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EdgeInsetsGeometry? get expandedTitlePadding => const EdgeInsets.fromLTRB(16, 0, 16, 28);
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}
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''';
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}
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