106 lines
3.5 KiB
Dart
106 lines
3.5 KiB
Dart
import 'package:flutter/cupertino.dart';
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import 'package:google_fonts/google_fonts.dart';
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import 'package:please_pay_me/theme/tokens.dart';
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/// iOS 15+ button styles.
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enum AppButtonStyle { filled, tinted, gray, plain, destructive }
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/// Apple control sizes: large 50pt, medium 44pt, small 34pt.
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enum AppButtonSize { large, medium, small }
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class AppButton extends StatelessWidget {
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const AppButton({
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super.key,
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required this.label,
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this.onPressed,
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this.style = AppButtonStyle.filled,
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this.size = AppButtonSize.large,
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this.expanded = true,
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this.icon,
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this.loading = false,
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});
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final String label;
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final VoidCallback? onPressed;
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final AppButtonStyle style;
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final AppButtonSize size;
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final bool expanded;
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final IconData? icon;
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final bool loading;
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double get _height => switch (size) {
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AppButtonSize.large => AppSizes.buttonLarge,
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AppButtonSize.medium => AppSizes.buttonMedium,
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AppButtonSize.small => AppSizes.buttonSmall,
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};
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TextStyle get _textStyle => switch (size) {
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AppButtonSize.large => AppTypography.headline,
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AppButtonSize.medium => AppTypography.body,
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AppButtonSize.small => AppTypography.subhead.copyWith(fontWeight: FontWeight.w600),
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};
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@override
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Widget build(BuildContext context) {
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final accent = AppColors.of(context, AppColors.accent);
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final red = AppColors.of(context, AppColors.systemRed);
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final (Color background, Color foreground) = switch (style) {
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AppButtonStyle.filled => (accent, const Color(0xFFFFFFFF)),
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AppButtonStyle.tinted => (accent.withValues(alpha: 0.15), accent),
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AppButtonStyle.gray => (
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AppColors.of(context, AppColors.systemGray5),
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AppColors.of(context, AppColors.label),
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),
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AppButtonStyle.plain => (const Color(0x00000000), accent),
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AppButtonStyle.destructive => (red.withValues(alpha: 0.15), red),
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};
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final disabled = onPressed == null || loading;
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final content = loading
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? CupertinoActivityIndicator(
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radius: size == AppButtonSize.small ? 8 : 10,
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color: foreground,
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)
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: Row(
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mainAxisSize: expanded ? MainAxisSize.max : MainAxisSize.min,
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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if (icon != null) ...[
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Icon(icon, size: size == AppButtonSize.small ? 16 : 19, color: foreground),
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const SizedBox(width: AppSpacing.s2),
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],
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Flexible(
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child: Text(
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label,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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style: GoogleFonts.inter(textStyle: _textStyle, color: foreground),
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),
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),
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],
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);
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return Opacity(
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opacity: disabled && !loading ? 0.35 : 1,
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child: SizedBox(
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height: _height,
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width: expanded ? double.infinity : null,
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child: CupertinoButton(
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onPressed: disabled ? null : onPressed,
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color: style == AppButtonStyle.plain ? null : background,
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disabledColor: background,
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borderRadius: BorderRadius.circular(
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size == AppButtonSize.small ? AppRadii.md : AppRadii.lg,
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),
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padding: EdgeInsets.symmetric(
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horizontal: size == AppButtonSize.small ? AppSpacing.s3 : AppSpacing.s4,
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),
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minimumSize: Size.zero,
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child: content,
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),
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),
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);
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}
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}
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