125 lines
4.3 KiB
HTML
125 lines
4.3 KiB
HTML
<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Kole UI · Tree (H5)</title>
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<link rel="stylesheet" href="../.design_library/kole-ui/colors_and_type.css">
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<link rel="stylesheet" href="./Tree.css">
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<style>
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/* 演示页布局脚手架 —— 组件样式已并入 Tree.css（S9-P7 单一样式真源） */
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.demo { padding: 24px; background: var(--kole-color-page-bg); color: var(--kole-color-text-body); font-family: var(--font-family); }
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h1 { font-size: 20px; margin: 0 0 4px; }
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.sub { color: var(--kole-color-text-secondary); margin: 0 0 24px; font-size: 12px; }
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</style>
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</head>
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<body>
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<div class="demo">
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<h1>Kole UI · Tree 组件（纯 H5）</h1>
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<p class="sub">对齐 Tree 规范：节点高32px、缩进16px/级、箭头12px、选中态 #F0F5FF + 品牌色、支持复选框级联</p>
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<label style="font-size:13px;color:var(--color-text-secondary);margin-right:16px;">
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<input type="checkbox" id="chkToggle" checked onchange="checkable=this.checked; render();"> 启用复选框
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</label>
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<div class="kole-tree" role="tree" id="tree" style="margin-top:12px"></div>
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</div>
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<script>
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const treeData = [
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{ key: 'org', title: '某某科技', children: [
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{ key: 'tech', title: '技术中心', children: [
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{ key: 'fe', title: '前端组' },
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{ key: 'be', title: '后端组' }
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]},
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{ key: 'product', title: '产品中心', children: [
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{ key: 'pm', title: '产品组' },
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{ key: 'ux', title: '设计组' }
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]}
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]}
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];
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let checkable = true;
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let expanded = new Set(['org']);
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let selected = new Set(['fe']);
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let checked = new Set(['tech']);
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function findNode(key, nodes = treeData) {
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for (const n of nodes) {
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if (n.key === key) return n;
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if (n.children) { const f = findNode(key, n.children); if (f) return f; }
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}
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return null;
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}
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function descendantKeys(node) {
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let out = [];
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(node.children || []).forEach(c => { out.push(c.key); out = out.concat(descendantKeys(c)); });
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return out;
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}
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function allChildrenChecked(node, set) {
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if (!node.children || !node.children.length) return set.has(node.key);
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return node.children.every(c => allChildrenChecked(c, set));
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}
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function hasChildren(n) { return n.children && n.children.length; }
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function toggleExpand(key) {
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expanded.has(key) ? expanded.delete(key) : expanded.add(key);
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render();
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}
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function selectRow(key) {
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selected = new Set([key]); render();
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}
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function toggleCheck(key) {
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const node = findNode(key);
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const willCheck = !checked.has(key);
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const keys = [key, ...descendantKeys(node)];
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keys.forEach(k => willCheck ? checked.add(k) : checked.delete(k));
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// 向上级联：父节点 = 其所有子节点均勾选
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propagateUp(node);
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render();
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}
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function propagateUp(node) {
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// 简单向上：遍历所有有父的节点
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function walk(nodes, parent) {
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nodes.forEach(n => {
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if (parent && hasChildren(parent)) {
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if (allChildrenChecked(parent, checked)) checked.add(parent.key);
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else checked.delete(parent.key);
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}
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if (n.children) walk(n.children, n);
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});
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}
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walk(treeData, null);
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}
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function visibleList() {
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const out = [];
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(function walk(nodes, depth) {
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nodes.forEach(n => {
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out.push({ node: n, depth });
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if (hasChildren(n) && expanded.has(n.key)) walk(n.children, depth + 1);
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});
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})(treeData, 0);
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return out;
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}
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function render() {
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const root = document.getElementById('tree');
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root.innerHTML = visibleList().map(({ node, depth }) => {
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const open = expanded.has(node.key);
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const arrow = hasChildren(node)
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? `<span class="kole-tree-arrow ${open ? 'is-open' : ''}" role="tree" onclick="toggleExpand('${node.key}')">▸</span>`
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: `<span class="kole-tree-arrow-placeholder"></span>`;
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const check = checkable
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? `<input type="checkbox" class="kole-tree-check" role="tree" ${checked.has(node.key) ? 'checked' : ''} onclick="event.stopPropagation();toggleCheck('${node.key}')">`
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: '';
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const sel = selected.has(node.key) ? ' is-selected' : '';
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return `<div class="kole-tree-node${sel}" role="treeitem" tabindex="0" style="padding-left:${depth * 16 + 4}px" onclick="selectRow('${node.key}')">
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${arrow}${check}<span class="kole-tree-label">${node.title}</span>
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</div>`;
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}).join('');
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}
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render();
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</script>
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</body>
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</html>
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