feat: 进行功能分区方便后期维护
- 添加导航条目和分类数据模型 - 实现导航卡片网格展示 - 支持点击卡片打开链接 - 添加主题样式（渐变色、卡片阴影） - 区分系统默认和自定义条目 - 添加分类统计信息"
This commit is contained in:
@@ -0,0 +1,70 @@
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import 'package:flutter/material.dart';
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import '../../../../core/constants/app_sizes.dart';
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import '../../../../core/theme/app_colors.dart';
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/// 右下角的圆形「回到顶部」按钮（`.back-to-top`）。
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///
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/// 原型的按钮是一直显示的，这里保持一致；悬停时上移 3px、
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/// 边框与图标变主色、阴影加深。
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class BackToTopButton extends StatefulWidget {
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const BackToTopButton({super.key, required this.onTap});
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/// 点击回调。
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final VoidCallback onTap;
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@override
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State<BackToTopButton> createState() => _BackToTopButtonState();
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}
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class _BackToTopButtonState extends State<BackToTopButton> {
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bool _hovered = false;
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@override
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Widget build(BuildContext context) {
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return Tooltip(
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message: '回到顶部',
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child: MouseRegion(
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cursor: SystemMouseCursors.click,
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onEnter: (_) => setState(() => _hovered = true),
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onExit: (_) => setState(() => _hovered = false),
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child: GestureDetector(
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onTap: widget.onTap,
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child: AnimatedContainer(
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duration: AppSizes.transition,
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// `.back-to-top { transition: all 0.2s ease }`。
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curve: Curves.ease,
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transform: Matrix4.translationValues(
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0,
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_hovered ? -AppSizes.backToTopHoverLift : 0,
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0,
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),
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width: AppSizes.backToTopSize,
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height: AppSizes.backToTopSize,
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alignment: Alignment.center,
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decoration: BoxDecoration(
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color: AppColors.surface,
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border: Border.all(
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color: _hovered ? AppColors.primary : AppColors.border,
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),
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shape: BoxShape.circle,
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boxShadow: _hovered
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? AppColors.cardShadowHover
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: AppColors.cardShadow,
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),
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// 原型这里就是一个 ↑ 字符（font-size: 18px）。
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child: Text(
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'↑',
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style: TextStyle(
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fontSize: 18,
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color: _hovered
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? AppColors.primary
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: AppColors.textSecondary,
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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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@@ -0,0 +1,108 @@
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import 'package:flutter/material.dart';
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import '../../../../core/constants/app_sizes.dart';
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import '../../../../core/theme/app_colors.dart';
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import '../../../../core/theme/app_text_styles.dart';
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import '../../domain/models/link_item.dart';
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/// 站点卡片，对应 `index.html` 里的 `.card`。
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///
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/// 结构是「36px 的字母方块 + 名称 + 描述」，悬停时上移 2px 并加强阴影。
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class LinkCard extends StatefulWidget {
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const LinkCard({super.key, required this.item, required this.onOpen});
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/// 站点数据。
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final LinkItem item;
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/// 打开回调。
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final VoidCallback onOpen;
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@override
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State<LinkCard> createState() => _LinkCardState();
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}
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class _LinkCardState extends State<LinkCard> {
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bool _hovered = false;
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@override
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Widget build(BuildContext context) {
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return MouseRegion(
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cursor: SystemMouseCursors.click,
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onEnter: (_) => setState(() => _hovered = true),
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onExit: (_) => setState(() => _hovered = false),
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child: GestureDetector(
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onTap: widget.onOpen,
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child: AnimatedContainer(
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duration: AppSizes.transition,
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// `.card { transition: transform .2s, box-shadow .2s }`。
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curve: Curves.ease,
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transform: Matrix4.translationValues(
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0,
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_hovered ? -AppSizes.cardHoverLift : 0,
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0,
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),
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padding: const EdgeInsets.symmetric(
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horizontal: AppSizes.cardPaddingHorizontal,
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vertical: AppSizes.cardPaddingVertical,
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),
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decoration: BoxDecoration(
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color: AppColors.surface,
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border: Border.all(color: AppColors.border),
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borderRadius: BorderRadius.circular(AppSizes.cardRadius),
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boxShadow: _hovered
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? AppColors.cardShadowHover
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: AppColors.cardShadow,
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),
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child: Row(
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children: <Widget>[
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_CardIcon(initial: widget.item.initial),
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const SizedBox(width: AppSizes.cardIconGap),
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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: <Widget>[
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Text(
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widget.item.title,
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style: AppTextStyles.cardTitle,
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maxLines: 1,
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overflow: TextOverflow.ellipsis,
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),
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const SizedBox(height: AppSizes.cardTitleGap),
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Text(
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widget.item.description,
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style: AppTextStyles.cardDesc,
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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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/// 卡片左侧的字母方块（`.card-icon`）。
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class _CardIcon extends StatelessWidget {
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const _CardIcon({required this.initial});
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final String initial;
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@override
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Widget build(BuildContext context) {
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return Container(
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width: AppSizes.cardIconSize,
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height: AppSizes.cardIconSize,
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alignment: Alignment.center,
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decoration: BoxDecoration(
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color: AppColors.iconSurface,
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borderRadius: BorderRadius.circular(AppSizes.cardIconRadius),
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),
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child: Text(initial, style: AppTextStyles.cardIcon),
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);
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}
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}
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@@ -0,0 +1,97 @@
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import 'package:flutter/material.dart';
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import '../../../../core/constants/app_sizes.dart';
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import '../../../../core/theme/app_colors.dart';
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import '../../../../core/theme/app_text_styles.dart';
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/// 搜索框。
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///
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/// 对应 `index3.html` 的 `.search-box`：固定 44px 高、白色底、1px 描边、
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/// 12px 圆角，聚焦时边框变主色并外扩 3px 的浅色光晕。
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///
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/// 用 [FocusNode] 而不是 `InputDecoration` 的 `focusedBorder`：
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/// 那条光晕是「向外扩散」的矩形阴影，靠边框宽度画不出来。
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class LinkSearchField extends StatefulWidget {
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const LinkSearchField({
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super.key,
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required this.controller,
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required this.hintText,
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});
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/// 文本控制器。
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final TextEditingController controller;
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/// 占位文案。
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final String hintText;
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@override
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State<LinkSearchField> createState() => _LinkSearchFieldState();
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}
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class _LinkSearchFieldState extends State<LinkSearchField> {
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final FocusNode _focusNode = FocusNode();
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bool _focused = false;
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@override
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void initState() {
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super.initState();
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_focusNode.addListener(_handleFocusChange);
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}
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@override
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void dispose() {
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_focusNode
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..removeListener(_handleFocusChange)
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..dispose();
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super.dispose();
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}
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void _handleFocusChange() {
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if (_focusNode.hasFocus != _focused) {
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setState(() => _focused = _focusNode.hasFocus);
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}
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}
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@override
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Widget build(BuildContext context) {
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return AnimatedContainer(
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duration: AppSizes.transition,
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// `.search-box { transition: border-color .2s, box-shadow .2s }`。
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curve: Curves.ease,
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height: AppSizes.searchHeight,
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padding: const EdgeInsets.symmetric(
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horizontal: AppSizes.searchPaddingHorizontal,
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),
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decoration: BoxDecoration(
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color: AppColors.surface,
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border: Border.all(
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color: _focused ? AppColors.primary : AppColors.border,
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),
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borderRadius: BorderRadius.circular(AppSizes.searchRadius),
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// 原型 `.search-box:focus` 的 box-shadow 会整体覆盖掉默认阴影，
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// 聚焦时只剩这一圈光晕，不是「默认阴影 + 光晕」。
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boxShadow: <BoxShadow>[
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if (_focused)
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const BoxShadow(color: AppColors.focusRing, spreadRadius: 3)
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else
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...AppColors.cardShadow,
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],
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),
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child: TextField(
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controller: widget.controller,
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focusNode: _focusNode,
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style: AppTextStyles.searchInput,
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cursorColor: AppColors.primary,
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textAlignVertical: TextAlignVertical.center,
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textInputAction: TextInputAction.search,
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decoration: InputDecoration(
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isDense: true,
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border: InputBorder.none,
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contentPadding: EdgeInsets.zero,
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hintText: widget.hintText,
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hintStyle: AppTextStyles.searchHint,
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),
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),
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);
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}
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}
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@@ -0,0 +1,93 @@
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import 'package:flutter/material.dart';
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import '../../../../core/constants/app_breakpoints.dart';
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import '../../../../core/constants/app_sizes.dart';
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import '../../../../core/theme/app_colors.dart';
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import '../../../../core/theme/app_text_styles.dart';
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import '../../domain/models/link_item.dart';
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import '../../domain/models/link_section.dart';
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import 'link_card.dart';
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/// 一个分组：标题 + 自适应网格。
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class LinkSectionView extends StatelessWidget {
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const LinkSectionView({
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super.key,
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required this.section,
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required this.onOpen,
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});
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/// 分组数据。
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final LinkSection section;
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/// 打开某个站点。
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final ValueChanged<LinkItem> onOpen;
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@override
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Widget build(BuildContext context) {
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return Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: <Widget>[
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_SectionTitle(title: section.title),
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const SizedBox(height: AppSizes.sectionTitleGap),
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LayoutBuilder(
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builder: (BuildContext context, BoxConstraints constraints) {
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final int columns = AppBreakpoints.gridColumnsFor(
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constraints.maxWidth,
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minItemWidth: AppSizes.gridMinItemWidth,
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gap: AppSizes.gridGap,
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);
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final double itemWidth =
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(constraints.maxWidth - AppSizes.gridGap * (columns - 1)) /
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columns;
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return Wrap(
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spacing: AppSizes.gridGap,
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runSpacing: AppSizes.gridGap,
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children: <Widget>[
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for (final LinkItem item in section.items)
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SizedBox(
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width: itemWidth,
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child: LinkCard(item: item, onOpen: () => onOpen(item)),
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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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/// 分组标题：左侧一条 4×16 的主色竖条 + 文字（`.section-title::before`）。
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class _SectionTitle extends StatelessWidget {
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const _SectionTitle({required this.title});
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final String title;
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@override
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Widget build(BuildContext context) {
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return Row(
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children: <Widget>[
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Container(
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width: AppSizes.sectionAccentWidth,
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height: AppSizes.sectionAccentHeight,
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decoration: BoxDecoration(
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color: AppColors.primary,
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borderRadius: BorderRadius.circular(AppSizes.sectionAccentRadius),
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),
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),
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const SizedBox(width: AppSizes.sectionAccentGap),
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// 用 Flexible 包住：窄屏（侧栏展开后主内容只剩一百多像素）时
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// 「素材资源 - UI 设计」这类长标题会溢出，这里退化成省略号。
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Flexible(
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child: Text(
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title,
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style: AppTextStyles.sectionTitle,
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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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@@ -0,0 +1,465 @@
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import 'package:flutter/material.dart';
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import '../../../../core/constants/app_sizes.dart';
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import '../../../../core/theme/app_colors.dart';
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import '../../../../core/theme/app_text_styles.dart';
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import '../../../../core/utils/text.dart';
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import '../../domain/models/nav_node.dart';
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/// 侧栏：logo + 层级导航 + 底部提交入口[cite: 1]。
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class SidebarNav extends StatelessWidget {
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const SidebarNav({
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super.key,
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required this.siteName,
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required this.navNodes,
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required this.activeSectionId,
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required this.collapsed,
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required this.openGroupIds,
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required this.onToggleGroup,
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required this.onSectionSelected,
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required this.onSubmitSite,
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required this.onToggleCollapse,
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});
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final String siteName;
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final List<NavNode> navNodes;
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final String? activeSectionId;
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final bool collapsed;
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final Set<String> openGroupIds;
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final ValueChanged<String> onToggleGroup;
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final ValueChanged<String> onSectionSelected;
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final VoidCallback onSubmitSite;
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final VoidCallback onToggleCollapse;
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@override
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Widget build(BuildContext context) {
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final double horizontalPadding = collapsed
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? AppSizes.sidebarCollapsedPaddingHorizontal
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||||
: AppSizes.sidebarPaddingHorizontal;
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return AnimatedContainer(
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duration: AppSizes.sidebarTransition,
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curve: Curves.fastOutSlowIn,
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width: collapsed
|
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? AppSizes.sidebarCollapsedWidth
|
||||
: AppSizes.sidebarWidth,
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decoration: const BoxDecoration(
|
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color: AppColors.surface,
|
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border: Border(right: BorderSide(color: AppColors.border)),
|
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),
|
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child: ClipRect(
|
||||
child: Padding(
|
||||
padding: EdgeInsets.fromLTRB(
|
||||
horizontalPadding,
|
||||
AppSizes.sidebarPaddingTop,
|
||||
horizontalPadding,
|
||||
AppSizes.sidebarPaddingBottom,
|
||||
),
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: <Widget>[
|
||||
_SidebarHeader(siteName: siteName, collapsed: collapsed),
|
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Expanded(
|
||||
child: SingleChildScrollView(
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: <Widget>[
|
||||
for (final NavNode node in navNodes)
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||||
_NavEntry(
|
||||
key: ValueKey(node.id),
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||||
node: node,
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||||
collapsed: collapsed,
|
||||
activeSectionId: activeSectionId,
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||||
open: openGroupIds.contains(node.id),
|
||||
onToggleGroup: onToggleGroup,
|
||||
onSectionSelected: onSectionSelected,
|
||||
onToggleCollapse: onToggleCollapse,
|
||||
),
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||||
],
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||||
),
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||||
),
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||||
),
|
||||
_SidebarFooter(
|
||||
collapsed: collapsed,
|
||||
onSubmitSite: onSubmitSite,
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
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||||
|
||||
class _SidebarHeader extends StatelessWidget {
|
||||
const _SidebarHeader({required this.siteName, required this.collapsed});
|
||||
|
||||
final String siteName;
|
||||
final bool collapsed;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Padding(
|
||||
padding: const EdgeInsets.only(bottom: AppSizes.sidebarHeaderGap),
|
||||
child: SizedBox(
|
||||
height: AppSizes.sidebarHeaderHeight,
|
||||
child: Center(
|
||||
child: AnimatedCrossFade(
|
||||
duration: AppSizes.sidebarTransition,
|
||||
crossFadeState: collapsed
|
||||
? CrossFadeState.showSecond
|
||||
: CrossFadeState.showFirst,
|
||||
firstChild: Text(
|
||||
siteName,
|
||||
style: AppTextStyles.logo,
|
||||
maxLines: 1,
|
||||
overflow: TextOverflow.ellipsis,
|
||||
),
|
||||
secondChild: Text(
|
||||
firstChar(siteName),
|
||||
style: AppTextStyles.logoIcon,
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class _NavEntry extends StatelessWidget {
|
||||
const _NavEntry({
|
||||
super.key,
|
||||
required this.node,
|
||||
required this.collapsed,
|
||||
required this.activeSectionId,
|
||||
required this.open,
|
||||
required this.onToggleGroup,
|
||||
required this.onSectionSelected,
|
||||
required this.onToggleCollapse,
|
||||
});
|
||||
|
||||
final NavNode node;
|
||||
final bool collapsed;
|
||||
final String? activeSectionId;
|
||||
final bool open;
|
||||
final ValueChanged<String> onToggleGroup;
|
||||
final ValueChanged<String> onSectionSelected;
|
||||
final VoidCallback onToggleCollapse;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
if (!node.isGroup) {
|
||||
return Padding(
|
||||
padding: const EdgeInsets.only(bottom: AppSizes.navItemGap),
|
||||
child: _NavRow(
|
||||
title: node.title,
|
||||
collapsed: collapsed,
|
||||
selected: node.id == activeSectionId,
|
||||
onTap: () => onSectionSelected(node.id),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
return Padding(
|
||||
padding: const EdgeInsets.only(bottom: AppSizes.navItemGap),
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: <Widget>[
|
||||
_NavRow(
|
||||
title: node.title,
|
||||
collapsed: collapsed,
|
||||
selected: false,
|
||||
onTap: () {
|
||||
if (collapsed) {
|
||||
onToggleCollapse();
|
||||
}
|
||||
onToggleGroup(node.id);
|
||||
},
|
||||
trailing: _ArrowIcon(open: open),
|
||||
),
|
||||
if (!collapsed)
|
||||
AnimatedSize(
|
||||
duration: AppSizes.subMenuTransition,
|
||||
curve: open
|
||||
? Curves.easeInOut
|
||||
: const Cubic(0, 1, 0, 1),
|
||||
alignment: Alignment.topCenter,
|
||||
child: open
|
||||
? Padding(
|
||||
padding: const EdgeInsets.only(
|
||||
left: AppSizes.subMenuIndent,
|
||||
),
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: <Widget>[
|
||||
for (final NavNode child in node.children)
|
||||
_SubNavItem(
|
||||
key: ValueKey(child.id),
|
||||
title: child.title,
|
||||
active: child.id == activeSectionId,
|
||||
onTap: () => onSectionSelected(child.id),
|
||||
),
|
||||
],
|
||||
),
|
||||
)
|
||||
: const SizedBox(height: 0),
|
||||
),
|
||||
],
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class _ArrowIcon extends StatelessWidget {
|
||||
const _ArrowIcon({required this.open});
|
||||
|
||||
final bool open;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return AnimatedRotation(
|
||||
duration: AppSizes.subMenuTransition,
|
||||
curve: Curves.ease,
|
||||
turns: open ? 0.25 : 0,
|
||||
child: const Text('›', style: AppTextStyles.navArrow),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class _NavRow extends StatefulWidget {
|
||||
const _NavRow({
|
||||
super.key,
|
||||
required this.title,
|
||||
required this.collapsed,
|
||||
required this.selected,
|
||||
required this.onTap,
|
||||
this.trailing,
|
||||
});
|
||||
|
||||
final String title;
|
||||
final bool collapsed;
|
||||
final bool selected;
|
||||
final VoidCallback onTap;
|
||||
final Widget? trailing;
|
||||
|
||||
@override
|
||||
State<_NavRow> createState() => _NavRowState();
|
||||
}
|
||||
|
||||
class _NavRowState extends State<_NavRow> {
|
||||
bool _hovered = false;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final Color foreground = widget.selected || _hovered
|
||||
? AppColors.primary
|
||||
: AppColors.textSecondary;
|
||||
|
||||
final Color backgroundColor = widget.selected
|
||||
? AppColors.primaryFaint
|
||||
: (_hovered ? AppColors.navItemHover : Colors.transparent);
|
||||
|
||||
final Widget rowContent = MouseRegion(
|
||||
cursor: SystemMouseCursors.click,
|
||||
onEnter: (_) => setState(() => _hovered = true),
|
||||
onExit: (_) => setState(() => _hovered = false),
|
||||
child: GestureDetector(
|
||||
onTap: widget.onTap,
|
||||
child: Container(
|
||||
padding: EdgeInsets.symmetric(
|
||||
horizontal: widget.collapsed
|
||||
? 0
|
||||
: AppSizes.navItemPaddingHorizontal,
|
||||
vertical: widget.collapsed
|
||||
? AppSizes.navItemCollapsedPaddingVertical
|
||||
: AppSizes.navItemPaddingVertical,
|
||||
),
|
||||
decoration: BoxDecoration(
|
||||
color: backgroundColor,
|
||||
borderRadius: BorderRadius.circular(AppSizes.navItemRadius),
|
||||
),
|
||||
child: widget.collapsed
|
||||
? Center(
|
||||
child: Text(
|
||||
firstChar(widget.title),
|
||||
style: AppTextStyles.navItem.copyWith(
|
||||
color: foreground,
|
||||
fontWeight: FontWeight.bold,
|
||||
),
|
||||
),
|
||||
)
|
||||
: Row(
|
||||
mainAxisAlignment: MainAxisAlignment.spaceBetween,
|
||||
children: <Widget>[
|
||||
Expanded(
|
||||
child: Text(
|
||||
widget.title,
|
||||
style: AppTextStyles.navItem.copyWith(
|
||||
color: foreground,
|
||||
),
|
||||
maxLines: 1,
|
||||
overflow: TextOverflow.ellipsis,
|
||||
),
|
||||
),
|
||||
if (widget.trailing != null) widget.trailing!,
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
|
||||
if (widget.collapsed) {
|
||||
return Tooltip(message: widget.title, child: rowContent);
|
||||
}
|
||||
return rowContent;
|
||||
}
|
||||
}
|
||||
|
||||
class _SubNavItem extends StatefulWidget {
|
||||
const _SubNavItem({
|
||||
super.key,
|
||||
required this.title,
|
||||
required this.active,
|
||||
required this.onTap,
|
||||
});
|
||||
|
||||
final String title;
|
||||
final bool active;
|
||||
final VoidCallback onTap;
|
||||
|
||||
@override
|
||||
State<_SubNavItem> createState() => _SubNavItemState();
|
||||
}
|
||||
|
||||
class _SubNavItemState extends State<_SubNavItem> {
|
||||
bool _hovered = false;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final Color foreground = widget.active || _hovered
|
||||
? AppColors.primary
|
||||
: AppColors.textSecondary;
|
||||
|
||||
final Color backgroundColor = widget.active
|
||||
? AppColors.primaryFaint
|
||||
: (_hovered ? AppColors.navItemHover : Colors.transparent);
|
||||
|
||||
return MouseRegion(
|
||||
cursor: SystemMouseCursors.click,
|
||||
onEnter: (_) => setState(() => _hovered = true),
|
||||
onExit: (_) => setState(() => _hovered = false),
|
||||
child: GestureDetector(
|
||||
onTap: widget.onTap,
|
||||
child: Container(
|
||||
padding: const EdgeInsets.symmetric(
|
||||
horizontal: AppSizes.subNavItemPaddingHorizontal,
|
||||
vertical: AppSizes.subNavItemPaddingVertical,
|
||||
),
|
||||
decoration: BoxDecoration(
|
||||
color: backgroundColor,
|
||||
borderRadius: BorderRadius.circular(AppSizes.navItemRadius),
|
||||
),
|
||||
child: Text(
|
||||
widget.title,
|
||||
style: AppTextStyles.subNavItem.copyWith(color: foreground),
|
||||
maxLines: 1,
|
||||
overflow: TextOverflow.ellipsis,
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class _SidebarFooter extends StatelessWidget {
|
||||
const _SidebarFooter({
|
||||
required this.collapsed,
|
||||
required this.onSubmitSite,
|
||||
});
|
||||
|
||||
final bool collapsed;
|
||||
final VoidCallback onSubmitSite;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Container(
|
||||
margin: const EdgeInsets.only(top: AppSizes.sidebarFooterMarginTop),
|
||||
padding: const EdgeInsets.only(top: AppSizes.sidebarFooterPaddingTop),
|
||||
decoration: const BoxDecoration(
|
||||
border: Border(top: BorderSide(color: AppColors.border)),
|
||||
),
|
||||
child: _SubmitButton(
|
||||
collapsed: collapsed,
|
||||
onTap: onSubmitSite,
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
class _SubmitButton extends StatefulWidget {
|
||||
const _SubmitButton({required this.collapsed, required this.onTap});
|
||||
|
||||
final bool collapsed;
|
||||
final VoidCallback onTap;
|
||||
|
||||
@override
|
||||
State<_SubmitButton> createState() => _SubmitButtonState();
|
||||
}
|
||||
|
||||
class _SubmitButtonState extends State<_SubmitButton> {
|
||||
bool _hovered = false;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final Color backgroundColor = _hovered
|
||||
? AppColors.navItemHover
|
||||
: Colors.transparent;
|
||||
|
||||
final Widget button = MouseRegion(
|
||||
cursor: SystemMouseCursors.click,
|
||||
onEnter: (_) => setState(() => _hovered = true),
|
||||
onExit: (_) => setState(() => _hovered = false),
|
||||
child: GestureDetector(
|
||||
onTap: widget.onTap,
|
||||
child: Container(
|
||||
padding: EdgeInsets.symmetric(
|
||||
horizontal: widget.collapsed
|
||||
? 0
|
||||
: AppSizes.submitButtonPaddingHorizontal,
|
||||
vertical: widget.collapsed
|
||||
? AppSizes.navItemCollapsedPaddingVertical
|
||||
: AppSizes.submitButtonPaddingVertical,
|
||||
),
|
||||
decoration: BoxDecoration(
|
||||
color: backgroundColor,
|
||||
borderRadius: BorderRadius.circular(AppSizes.navItemRadius),
|
||||
),
|
||||
child: widget.collapsed
|
||||
? Center(
|
||||
child: Text(
|
||||
'+',
|
||||
style: AppTextStyles.submitButton.copyWith(
|
||||
color: _hovered
|
||||
? AppColors.primary
|
||||
: AppColors.textSecondary,
|
||||
fontWeight: FontWeight.bold,
|
||||
),
|
||||
),
|
||||
)
|
||||
: Text(
|
||||
'提交网站',
|
||||
style: AppTextStyles.submitButton.copyWith(
|
||||
color: _hovered
|
||||
? AppColors.primary
|
||||
: AppColors.textSecondary,
|
||||
),
|
||||
maxLines: 1,
|
||||
overflow: TextOverflow.ellipsis,
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
|
||||
return Tooltip(message: '提交网站', child: button);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,116 @@
|
||||
import 'package:flutter/material.dart';
|
||||
|
||||
import '../../../../core/constants/app_sizes.dart';
|
||||
import '../../../../core/theme/app_colors.dart';
|
||||
import 'link_search_field.dart';
|
||||
|
||||
/// 顶部控制栏：折叠按钮 + 搜索框。
|
||||
///
|
||||
/// 对应 `index3.html` 的 `.top-bar`：整体宽 750px 并且**水平居中**
|
||||
/// （`margin: 0 auto 36px auto`），下方与第一组卡片留 36px。
|
||||
class TopBar extends StatelessWidget {
|
||||
const TopBar({
|
||||
super.key,
|
||||
required this.searchController,
|
||||
required this.searchHint,
|
||||
required this.sidebarCollapsed,
|
||||
required this.onToggleSidebar,
|
||||
});
|
||||
|
||||
/// 搜索框控制器。
|
||||
final TextEditingController searchController;
|
||||
|
||||
/// 搜索框占位文案。
|
||||
final String searchHint;
|
||||
|
||||
/// 侧栏当前是否折叠，用于按钮的提示文案。
|
||||
final bool sidebarCollapsed;
|
||||
|
||||
/// 折叠 / 展开侧栏。
|
||||
final VoidCallback onToggleSidebar;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Padding(
|
||||
padding: const EdgeInsets.only(bottom: AppSizes.topBarMarginBottom),
|
||||
child: Center(
|
||||
child: ConstrainedBox(
|
||||
constraints: const BoxConstraints(
|
||||
maxWidth: AppSizes.topBarMaxWidth,
|
||||
),
|
||||
child: Row(
|
||||
children: <Widget>[
|
||||
_ToggleButton(
|
||||
collapsed: sidebarCollapsed,
|
||||
onTap: onToggleSidebar,
|
||||
),
|
||||
const SizedBox(width: AppSizes.topBarGap),
|
||||
Expanded(
|
||||
child: LinkSearchField(
|
||||
controller: searchController,
|
||||
hintText: searchHint,
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/// 折叠按钮（`.toggle-btn`）。
|
||||
class _ToggleButton extends StatefulWidget {
|
||||
const _ToggleButton({required this.collapsed, required this.onTap});
|
||||
|
||||
final bool collapsed;
|
||||
final VoidCallback onTap;
|
||||
|
||||
@override
|
||||
State<_ToggleButton> createState() => _ToggleButtonState();
|
||||
}
|
||||
|
||||
class _ToggleButtonState extends State<_ToggleButton> {
|
||||
bool _hovered = false;
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final Color foreground = _hovered
|
||||
? AppColors.primary
|
||||
: AppColors.textSecondary;
|
||||
|
||||
return Tooltip(
|
||||
// 原型写的是 title="展开/折叠侧边栏"，文案固定。
|
||||
message: '展开/折叠侧边栏',
|
||||
child: MouseRegion(
|
||||
cursor: SystemMouseCursors.click,
|
||||
onEnter: (_) => setState(() => _hovered = true),
|
||||
onExit: (_) => setState(() => _hovered = false),
|
||||
child: GestureDetector(
|
||||
onTap: widget.onTap,
|
||||
child: AnimatedContainer(
|
||||
duration: AppSizes.transition,
|
||||
// `.toggle-btn { transition: all 0.2s }`。
|
||||
curve: Curves.ease,
|
||||
width: AppSizes.toggleButtonSize,
|
||||
height: AppSizes.toggleButtonSize,
|
||||
alignment: Alignment.center,
|
||||
decoration: BoxDecoration(
|
||||
color: AppColors.surface,
|
||||
border: Border.all(
|
||||
color: _hovered ? AppColors.primary : AppColors.border,
|
||||
),
|
||||
borderRadius: BorderRadius.circular(AppSizes.toggleButtonRadius),
|
||||
boxShadow: AppColors.cardShadow,
|
||||
),
|
||||
// 原型这里就是一个 ☰ 字符（font-size: 18px）。
|
||||
child: Text(
|
||||
'☰',
|
||||
style: TextStyle(fontSize: 18, color: foreground),
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user