wangjia
6d20359482
ds_table.dart 在 ds 地基提交后新建、库存屏提交时漏 add，补回避免仓库缺文件。 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TSKEiHsvauyxYUW2itzUXX
298 lines
9.6 KiB
Dart
298 lines
9.6 KiB
Dart
// widgets/ds/ds_table.dart — 原型 .table + .toolbar + .pager（镜像 atoms.css）。
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// .toolbar(圆角上,无下边) 接 .table.flush-top(圆角下) 接 .pager，视觉连成一卡。
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import 'package:flutter/material.dart';
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import '../../core/responsive/responsive.dart';
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import '../../core/theme/context_tokens.dart';
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import '../../core/theme/app_dims.g.dart';
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class DsColumn {
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final String key;
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final String label;
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final bool numeric; // th.num/td.num 右对齐 + mono
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final bool action; // th.act/td.act 固定窄列
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final Widget? header; // 自定义列头（如漏斗筛选）；缺省用 label
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const DsColumn(this.key, this.label,
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{this.numeric = false, this.action = false, this.header});
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}
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class DsRow {
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final List<Widget> cells;
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final VoidCallback? onTap;
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final Color? highlight; // 行底色（如缺货/预警淡染）
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const DsRow({required this.cells, this.onTap, this.highlight});
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}
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/// 原型 .table 卡：可选 toolbar + 表格(列头漏斗/行 hover) + 分页。
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class DsTable extends StatefulWidget {
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final Widget? toolbar;
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final List<DsColumn> columns;
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final List<DsRow> rows;
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final String emptyText;
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// 分页（.pager）
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final int? total;
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final int page;
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final int pageSize;
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final ValueChanged<int>? onPageChanged;
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final ValueChanged<int>? onPageSizeChanged;
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// 窄屏卡片流（与 rows 同序）；为空时窄屏也走表格横滚
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final List<Widget>? mobileCards;
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const DsTable({
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super.key,
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this.toolbar,
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required this.columns,
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required this.rows,
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this.emptyText = '暂无数据',
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this.total,
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this.page = 1,
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this.pageSize = 20,
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this.onPageChanged,
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this.onPageSizeChanged,
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this.mobileCards,
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});
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@override
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State<DsTable> createState() => _DsTableState();
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}
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class _DsTableState extends State<DsTable> {
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final _hovered = ValueNotifier<int>(-1);
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final _vCtrl = ScrollController();
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final _hCtrl = ScrollController();
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@override
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void dispose() {
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_hovered.dispose();
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_vCtrl.dispose();
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_hCtrl.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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final t = context.tokens;
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return Container(
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decoration: BoxDecoration(
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color: t.surface,
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border: Border.all(color: t.border),
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borderRadius: BorderRadius.circular(AppDims.rLg),
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),
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clipBehavior: Clip.antiAlias,
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child: Column(
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children: [
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if (widget.toolbar != null) ...[
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 12),
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child: widget.toolbar!,
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),
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Divider(height: 1, color: t.border),
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],
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Expanded(
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child: (context.isMobile && widget.mobileCards != null)
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? _buildMobile(t)
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: _buildTable(t),
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),
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if (widget.total != null) _buildPager(t),
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],
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),
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);
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}
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Widget _buildMobile(dynamic t) {
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final cards = widget.mobileCards!;
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if (cards.isEmpty) return _empty(t);
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return ListView.separated(
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padding: const EdgeInsets.all(12),
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itemCount: cards.length,
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separatorBuilder: (_, __) => const SizedBox(height: 10),
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itemBuilder: (_, i) => cards[i],
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);
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}
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Widget _empty(dynamic t) => Center(
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child: Padding(
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padding: const EdgeInsets.all(48),
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child: Text(widget.emptyText,
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style: TextStyle(color: t.muted, fontSize: AppDims.fsBody)),
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),
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);
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Widget _buildTable(dynamic t) {
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if (widget.rows.isEmpty) return _empty(t);
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return LayoutBuilder(
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builder: (context, constraints) => Scrollbar(
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controller: _vCtrl,
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thumbVisibility: true,
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child: SingleChildScrollView(
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controller: _vCtrl,
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child: Scrollbar(
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controller: _hCtrl,
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thumbVisibility: true,
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scrollbarOrientation: ScrollbarOrientation.bottom,
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child: SingleChildScrollView(
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controller: _hCtrl,
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scrollDirection: Axis.horizontal,
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child: ConstrainedBox(
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constraints: BoxConstraints(minWidth: constraints.maxWidth),
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child: Table(
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defaultColumnWidth: const IntrinsicColumnWidth(),
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children: [
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_headerRow(t),
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for (int i = 0; i < widget.rows.length; i++)
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_dataRow(t, i, widget.rows[i]),
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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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TableRow _headerRow(dynamic t) {
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return TableRow(
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decoration: BoxDecoration(
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color: t.thBg,
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border: Border(bottom: BorderSide(color: t.border)),
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),
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children: widget.columns.map((c) {
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final child = c.header ??
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Text(c.label,
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style: TextStyle(
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fontSize: AppDims.fsSm,
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fontWeight: FontWeight.w600,
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color: t.muted));
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return Padding(
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// 原型 thead th: pad 11 14
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padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 11),
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child: Align(
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alignment:
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c.numeric ? Alignment.centerRight : Alignment.centerLeft,
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child: child,
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),
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);
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}).toList(),
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);
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}
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TableRow _dataRow(dynamic t, int index, DsRow row) {
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return TableRow(
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children: List.generate(row.cells.length, (col) {
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final c = widget.columns[col];
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return MouseRegion(
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cursor: row.onTap != null
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? SystemMouseCursors.click
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: MouseCursor.defer,
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onEnter: (_) => _hovered.value = index,
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onExit: (_) {
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if (_hovered.value == index) _hovered.value = -1;
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},
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child: ValueListenableBuilder<int>(
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valueListenable: _hovered,
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builder: (context, hov, __) {
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final bg = hov == index ? t.rowHover : (row.highlight);
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return GestureDetector(
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onTap: row.onTap,
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behavior: HitTestBehavior.opaque,
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child: Container(
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// 原型 tbody td: pad 12 14，下边 border-subtle
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constraints: const BoxConstraints(minHeight: 44),
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decoration: BoxDecoration(
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color: bg,
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border: Border(
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bottom: BorderSide(color: t.borderSubtle)),
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),
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padding:
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const EdgeInsets.symmetric(horizontal: 14, vertical: 12),
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alignment: c.numeric
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? Alignment.centerRight
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: Alignment.centerLeft,
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child: DefaultTextStyle.merge(
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style: TextStyle(
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fontSize: AppDims.fsBody, color: t.text),
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child: row.cells[col],
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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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// 原型 .pager：每页 N 条 + 显示范围 + 翻页
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Widget _buildPager(dynamic t) {
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final total = widget.total!;
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final pages = (total / widget.pageSize).ceil().clamp(1, 99999);
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final start = total == 0 ? 0 : (widget.page - 1) * widget.pageSize + 1;
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final end = (widget.page * widget.pageSize).clamp(0, total);
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final labelStyle = TextStyle(fontSize: AppDims.fsSm, color: t.muted);
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return Container(
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padding: const EdgeInsets.fromLTRB(14, 10, 14, 10),
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child: Row(
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children: [
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if (widget.onPageSizeChanged != null && !context.isMobile) ...[
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Text('每页', style: labelStyle),
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const SizedBox(width: 6),
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DropdownButtonHideUnderline(
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child: DropdownButton<int>(
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value: const [10, 20, 50, 100].contains(widget.pageSize)
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? widget.pageSize
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: 20,
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isDense: true,
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style: TextStyle(
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fontSize: AppDims.fsSm,
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color: t.text,
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fontFamily: 'monospace'),
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items: const [10, 20, 50, 100]
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.map((n) =>
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DropdownMenuItem(value: n, child: Text('$n 条')))
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.toList(),
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onChanged: (v) {
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if (v != null) widget.onPageSizeChanged!(v);
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},
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),
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),
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const SizedBox(width: 16),
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],
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Text('显示 $start–$end，共 $total', style: labelStyle),
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const Spacer(),
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_pgBtn(t, Icons.chevron_left,
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widget.page > 1 ? () => widget.onPageChanged?.call(widget.page - 1) : null),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 8),
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child: Text('${widget.page} / $pages',
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style: TextStyle(
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fontSize: AppDims.fsSm,
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color: t.text,
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fontFamily: 'monospace')),
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),
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_pgBtn(t, Icons.chevron_right,
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widget.page < pages ? () => widget.onPageChanged?.call(widget.page + 1) : null),
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],
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),
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);
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}
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Widget _pgBtn(dynamic t, IconData icon, VoidCallback? onTap) {
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return SizedBox(
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width: 30,
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height: 30,
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child: Material(
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color: t.surface,
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shape: RoundedRectangleBorder(
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side: BorderSide(color: t.border),
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borderRadius: BorderRadius.circular(AppDims.rSm),
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),
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child: InkWell(
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onTap: onTap,
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child: Icon(icon,
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size: 16, color: onTap == null ? t.faint : t.text),
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),
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),
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);
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}
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}
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