forked from opentiny/tiny-vue
52 lines
1.4 KiB
Vue
52 lines
1.4 KiB
Vue
<template>
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<div>
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<tiny-tree lazy :load="load" :after-load="afterLoad" @load-data="loadedData"></tiny-tree>
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</div>
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</template>
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<script lang="jsx">
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import { Tree } from '@opentiny/vue'
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export default {
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components: {
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TinyTree: Tree
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},
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methods: {
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// node为点击的节点， resolve为回调函数，用于异步返回下层节点的数据
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load(node, resolve) {
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console.log('即将加载节点下级数据：', node)
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// 通过 level =0 来识别第一次加载
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if (node.level === 0) {
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resolve([
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{ id: '1', label: '#数据 1' },
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{ id: '2', label: '#数据 2' },
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{ id: '3', label: '#数据 3' }
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])
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}
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// 通过 data 有值，识别是用户点击后的加载
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else if (node.data) {
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const parentId = node.data.id
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const parentLabel = node.data.label
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const children = Array.from({ length: 5 }, (v, k) => k + 1).map((num) => ({
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id: `${parentId}-${num}`,
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label: `${parentLabel}-${num}`,
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disabled: Math.random() - 0.5 > 0, // 随机禁用节点
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isLeaf: Math.random() - 0.5 > 0 // 随机设置叶子节点
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}))
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// 模拟异步返回
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setTimeout(() => resolve(children), Math.random() * 2 * 1000)
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}
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},
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afterLoad(data) {
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console.log('afterLoad属性触发：', data)
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},
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loadedData(data) {
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console.log('load-data 事件触发：', data)
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}
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}
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}
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</script>
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