554 lines
18 KiB
Dart
554 lines
18 KiB
Dart
import 'package:client_proxy_framework/client_proxy_framework.dart';
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import 'package:flutter/material.dart';
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import 'package:google_fonts/google_fonts.dart';
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import '../../design/pencil_theme.dart';
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/// 本页「图标」相对设计稿的缩放（支付方式 logo、摘要钻石等）。
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const double _paymentSheetIconScale = 1.5;
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/// 与 `funymee_home.pen` **zL8hY / p7kQm** 对齐的第三方支付底部表单。
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/// 先点选支付方式，再点底部 **Pay** 确认（与画板 `btnPayPrimary` 一致）。
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///
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/// [summaryTierCredits] / [summaryTierBonus] 与购买页摘要一致（档位积分 + 档位赠送）；
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/// 均为 `null` 时从 [product] 读取。各支付方式副标题的赠送比例仅读接口 [PaymentMethodItem.bonusRatio]，不作本地推算。
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Future<PaymentMethodItem?> showThirdPartyPaymentMethodSheet(
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BuildContext context, {
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required List<PaymentMethodItem> methods,
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required PaymentProductItem product,
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int? summaryTierCredits,
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int? summaryTierBonus,
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}) {
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if (methods.isEmpty) return Future.value(null);
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return showModalBottomSheet<PaymentMethodItem>(
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context: context,
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isScrollControlled: true,
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backgroundColor: Colors.transparent,
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// 使用框架 ModalBarrier 遮罩，避免与下层页面视觉上糊在一起。
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barrierColor: PencilTheme.paymentModalDimScrim,
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isDismissible: true,
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builder: (ctx) {
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final w = MediaQuery.sizeOf(ctx).width;
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final sheetW = w < PencilTheme.designWidth ? w : PencilTheme.designWidth;
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return Align(
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alignment: Alignment.bottomCenter,
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child: SizedBox(
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width: sheetW,
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child: _ThirdPartyPaymentSheetBody(
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methods: methods,
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product: product,
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summaryTierCredits: summaryTierCredits,
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summaryTierBonus: summaryTierBonus,
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),
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),
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);
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},
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);
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}
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class _ThirdPartyPaymentSheetBody extends StatefulWidget {
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const _ThirdPartyPaymentSheetBody({
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required this.methods,
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required this.product,
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this.summaryTierCredits,
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this.summaryTierBonus,
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});
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final List<PaymentMethodItem> methods;
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final PaymentProductItem product;
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/// 购买页传入的档位积分；`null` 则用 [product.credits]。
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final int? summaryTierCredits;
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/// 购买页传入的档位赠送；`null` 则用 [product.bonus]。
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final int? summaryTierBonus;
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@override
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State<_ThirdPartyPaymentSheetBody> createState() =>
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_ThirdPartyPaymentSheetBodyState();
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}
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class _ThirdPartyPaymentSheetBodyState
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extends State<_ThirdPartyPaymentSheetBody> {
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late int _selectedIndex;
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@override
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void initState() {
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super.initState();
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_selectedIndex = 0;
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}
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String get _payLabel => 'Pay Now';
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@override
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Widget build(BuildContext context) {
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final bottomSafe = MediaQuery.paddingOf(context).bottom;
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final bottomPad = bottomSafe < 34 ? 34.0 : bottomSafe.toDouble();
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const sheetRadius = BorderRadius.only(
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topLeft: Radius.circular(24),
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topRight: Radius.circular(24),
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);
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return Container(
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decoration: BoxDecoration(
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borderRadius: sheetRadius,
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boxShadow: PencilTheme.paymentSheetOuterShadow,
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),
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child: ClipRRect(
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borderRadius: sheetRadius,
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clipBehavior: Clip.antiAlias,
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child: Container(
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foregroundDecoration: BoxDecoration(
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borderRadius: sheetRadius,
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border: const Border(
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top: BorderSide(color: PencilTheme.genHintBorder, width: 1),
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left: BorderSide(color: PencilTheme.genHintBorder, width: 1),
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right: BorderSide(color: PencilTheme.genHintBorder, width: 1),
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),
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),
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child: Stack(
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fit: StackFit.loose,
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children: [
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const Positioned.fill(
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child: DecoratedBox(
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decoration: BoxDecoration(
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gradient: PencilTheme.paymentSheetBodyGradient,
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),
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),
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),
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Positioned.fill(
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child: Opacity(
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opacity: 0.2,
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child: Image.asset(
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'assets/images/checker_20px_500.png',
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fit: BoxFit.cover,
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alignment: Alignment.topCenter,
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filterQuality: FilterQuality.medium,
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),
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),
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),
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Material(
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color: Colors.transparent,
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child: SingleChildScrollView(
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padding: EdgeInsets.fromLTRB(20, 10, 20, bottomPad),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Center(
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child: Container(
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width: 40,
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height: 5,
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decoration: BoxDecoration(
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color: PencilTheme.paymentRadioOffStroke,
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borderRadius: BorderRadius.circular(99),
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),
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),
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),
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const SizedBox(height: 18),
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Text(
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'Payment Methods',
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textAlign: TextAlign.center,
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style: GoogleFonts.inter(
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fontSize: 20,
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fontWeight: FontWeight.w700,
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color: PencilTheme.stone900,
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height: 1.2,
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),
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),
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const SizedBox(height: 18),
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_PaymentSummaryCard(
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product: widget.product,
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tierCredits:
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widget.summaryTierCredits ?? widget.product.credits,
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tierBonus:
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widget.summaryTierBonus ?? widget.product.bonus,
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),
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const SizedBox(height: 18),
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Text(
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'Payment',
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style: GoogleFonts.inter(
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fontSize: 14,
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fontWeight: FontWeight.w600,
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color: PencilTheme.stone600,
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height: 1.2,
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),
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),
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const SizedBox(height: 12),
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for (var i = 0; i < widget.methods.length; i++) ...[
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if (i > 0) const SizedBox(height: 12),
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_PaymentMethodOptionCard(
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method: widget.methods[i],
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selected: _selectedIndex == i,
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iconColor: _iconAccent(widget.methods[i]),
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onSelect: () => setState(() => _selectedIndex = i),
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),
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],
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const SizedBox(height: 18),
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_PayCtaButton(
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label: _payLabel,
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onPressed: () => Navigator.pop(
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context,
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widget.methods[_selectedIndex],
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),
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),
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],
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),
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),
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),
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],
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),
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),
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),
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);
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}
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static Color _iconAccent(PaymentMethodItem m) {
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final n = m.displayName.toLowerCase();
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if (n.contains('app store')) {
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return PencilTheme.paymentAppStoreIconBlue;
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}
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return PencilTheme.stone900;
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}
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}
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String _formatProductPrice(PaymentProductItem p) {
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final a = p.actualAmount?.trim();
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if (a == null || a.isEmpty) return '\$—';
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if (a.startsWith(r'$') || a.startsWith('¥')) return a;
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return '\$$a';
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}
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/// 第三方支付方式副标题：赠送**比例**仅用服务端 [PaymentMethodItem.bonusRatio]（与框架解析一致：`≤1` 为小数比例，否则为百分数），
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/// 不用 `bonusCredits / 档位积分` 推算；无 `bonusRatio` 时再展示 [PaymentMethodItem.bonusCredits] 的绝对赠送文案。
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String? _thirdPartyChannelBonusSubtitle(PaymentMethodItem method) {
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final br = method.bonusRatio;
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if (br != null && br > 0) {
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final pct = br <= 1 ? (br * 100).round() : br.round();
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return '+$pct% More Credits';
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}
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final bc = method.bonusCredits;
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if (bc != null && bc > 0) {
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return '+$bc More Credits';
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}
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return null;
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}
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class _PaymentSummaryCard extends StatelessWidget {
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const _PaymentSummaryCard({
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required this.product,
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required this.tierCredits,
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required this.tierBonus,
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});
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final PaymentProductItem product;
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final int? tierCredits;
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final int? tierBonus;
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@override
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Widget build(BuildContext context) {
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final credits = tierCredits ?? 0;
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final tierGift = tierBonus;
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final price = _formatProductPrice(product);
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return Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: Colors.white,
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borderRadius: BorderRadius.circular(16),
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border: Border.all(color: PencilTheme.genNavBackStroke),
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boxShadow: PencilTheme.paymentSummaryCardShadow,
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),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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Icon(
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Icons.diamond_outlined,
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size: 22 * _paymentSheetIconScale,
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color: PencilTheme.paymentSummaryGem,
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),
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const SizedBox(width: 10),
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Expanded(
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.baseline,
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textBaseline: TextBaseline.alphabetic,
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children: [
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Text(
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'$credits',
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style: GoogleFonts.inter(
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fontSize: 17,
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fontWeight: FontWeight.w700,
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color: PencilTheme.stone900,
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),
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),
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if (tierGift != null && tierGift > 0) ...[
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const SizedBox(width: 4),
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Text(
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'+$tierGift',
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style: GoogleFonts.inter(
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fontSize: 17,
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fontWeight: FontWeight.w700,
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color: PencilTheme.paymentSummaryBonusGreen,
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),
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),
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],
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const SizedBox(width: 4),
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Text(
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'Credits',
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style: GoogleFonts.inter(
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fontSize: 14,
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fontWeight: FontWeight.w600,
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color: PencilTheme.paymentSummaryCreditsLabel,
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),
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),
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],
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),
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),
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Text(
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price,
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style: GoogleFonts.inter(
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fontSize: 24,
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fontWeight: FontWeight.w800,
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color: PencilTheme.stone900,
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),
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),
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],
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),
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);
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}
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}
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class _PayCtaButton extends StatelessWidget {
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const _PayCtaButton({required this.label, required this.onPressed});
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final String label;
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final VoidCallback onPressed;
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@override
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Widget build(BuildContext context) {
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return Container(
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height: 52,
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(999),
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gradient: PencilTheme.paymentPayButtonGradient,
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boxShadow: PencilTheme.paymentPayButtonShadow,
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),
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child: Material(
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color: Colors.transparent,
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child: InkWell(
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onTap: onPressed,
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borderRadius: BorderRadius.circular(999),
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child: Center(
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child: Text(
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label,
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style: GoogleFonts.inter(
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fontSize: 17,
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fontWeight: FontWeight.w700,
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color: Colors.white,
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),
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),
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),
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),
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),
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);
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}
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}
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class _PaymentMethodOptionCard extends StatelessWidget {
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const _PaymentMethodOptionCard({
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required this.method,
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required this.selected,
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required this.iconColor,
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required this.onSelect,
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});
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final PaymentMethodItem method;
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final bool selected;
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final Color iconColor;
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final VoidCallback onSelect;
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static const double _radioSize = 22;
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static const double _iconBox = 28 * _paymentSheetIconScale;
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@override
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Widget build(BuildContext context) {
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final title = method.displayName.isNotEmpty
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? method.displayName
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: (method.paymentMethod ?? 'Payment');
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final channelBonusLine = _thirdPartyChannelBonusSubtitle(method);
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return Material(
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color: Colors.white,
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borderRadius: BorderRadius.circular(14),
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child: InkWell(
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onTap: onSelect,
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borderRadius: BorderRadius.circular(14),
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child: Container(
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padding: const EdgeInsets.all(14),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(14),
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border: Border.all(
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color: selected
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? PencilTheme.paymentMethodSelectedStroke
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: PencilTheme.genNavBackStroke,
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width: selected ? 2 : 1,
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),
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),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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SizedBox(
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width: _radioSize,
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height: _radioSize,
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child: selected
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? Stack(
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alignment: Alignment.center,
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children: [
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Container(
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width: _radioSize,
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height: _radioSize,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: PencilTheme.paymentMethodSelectedStroke,
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border: Border.all(
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color: PencilTheme.paymentMethodSelectedStroke,
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width: 2,
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),
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),
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),
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Container(
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width: 8,
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height: 8,
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decoration: const BoxDecoration(
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shape: BoxShape.circle,
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color: Colors.white,
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),
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),
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],
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)
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: Container(
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width: _radioSize,
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height: _radioSize,
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decoration: BoxDecoration(
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shape: BoxShape.circle,
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color: Colors.white,
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border: Border.all(
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color: PencilTheme.paymentRadioOffStroke,
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width: 2,
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),
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),
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),
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),
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const SizedBox(width: 12),
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SizedBox(
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width: _iconBox,
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height: _iconBox,
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child: _PaymentMethodSheetIconSmall(
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iconUrl: method.icon,
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color: iconColor,
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),
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),
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const SizedBox(width: 12),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisSize: MainAxisSize.min,
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children: [
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Row(
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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Expanded(
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child: Text(
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title,
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style: GoogleFonts.inter(
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fontSize: 16,
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fontWeight: FontWeight.w700,
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color: PencilTheme.stone900,
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),
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maxLines: 2,
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overflow: TextOverflow.ellipsis,
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),
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),
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if (method.recommend == true) ...[
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const SizedBox(width: 6),
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Container(
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padding: const EdgeInsets.symmetric(
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horizontal: 6,
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vertical: 2,
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),
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decoration: BoxDecoration(
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color: PencilTheme.cardThumbBg,
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borderRadius: BorderRadius.circular(6),
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),
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child: Text(
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'Recommend',
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style: GoogleFonts.inter(
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fontSize: 9,
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fontWeight: FontWeight.w600,
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height: 1.1,
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color: PencilTheme.stone700,
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),
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),
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),
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],
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],
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),
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if (channelBonusLine != null) ...[
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const SizedBox(height: 4),
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Text(
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channelBonusLine,
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style: GoogleFonts.inter(
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fontSize: 12,
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fontWeight: FontWeight.w600,
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color: PencilTheme.profileCredits,
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),
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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],
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],
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),
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),
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],
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),
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),
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),
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);
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}
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}
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class _PaymentMethodSheetIconSmall extends StatelessWidget {
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const _PaymentMethodSheetIconSmall({required this.color, this.iconUrl});
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final String? iconUrl;
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final Color color;
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@override
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Widget build(BuildContext context) {
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final url = iconUrl?.trim();
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final fallback = Icon(
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Icons.payment_outlined,
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size: 22 * _paymentSheetIconScale,
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color: color,
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);
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if (url != null && url.isNotEmpty) {
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final img = Image.network(
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url,
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fit: BoxFit.contain,
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alignment: Alignment.center,
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errorBuilder: (_, _, _) => Center(child: fallback),
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);
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if (color == PencilTheme.paymentAppStoreIconBlue) {
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return ColorFiltered(
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colorFilter: ColorFilter.mode(color, BlendMode.srcIn),
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child: img,
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);
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}
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return img;
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}
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return Center(child: fallback);
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}
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}
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