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104 lines
2.5 KiB
104 lines
2.5 KiB
// pages/common/comTree/index.js
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/**
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value = [
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{
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id: 1,
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name: '一级名称',
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children: []
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}
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]
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*/
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Component({
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/**
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* 组件的属性列表
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*/
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properties: {
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dataTree: {
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type: Array,
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value: []
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},
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selectKey: { // 选中的节点id
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type: String,
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value: ''
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},
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isSelectLastNode: { //是否必须选中最后一节点
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type: Boolean,
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value: false
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},
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isOpenAll: { //是否展开全部节点
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type: Boolean,
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value: false
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}
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},
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observers: {
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'dataTree': function(params) {
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let dataTree = JSON.parse(JSON.stringify(this.properties.dataTree))
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var tree = this.findParent(dataTree,this.properties.selectKey,[])
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params.forEach(v => {
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if(v.id == tree[0]){
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v.open = true
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}else{
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v.open = this.properties.isOpenAll // 是否展开
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}
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})
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this.setData({
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tree:params
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})
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}
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},
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/**
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* 组件的初始数据
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*/
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data: {
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tree: []
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},
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/**
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* 组件的方法列表
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*/
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methods: {
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findParent(data, target, result) {
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for (let i in data) {
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let item = data[i]
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if (item.id == target) {
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//将查找到的目标数据加入结果数组中
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//可根据需求unshift(item.id)或unshift(item)
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item.open = true
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result.unshift(item.id)
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return result
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}
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if (item.children && item.children.length > 0) {
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let ok = this.findParent(item.children, target, result)
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if (ok) {
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item.open = true
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result.unshift(item.id)
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return result
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}
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}
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}
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//走到这说明没找到目标
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return false
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},
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isOpen(e) {
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const open = 'tree[' + e.currentTarget.dataset.index + '].open'
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this.setData({
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[open]: !this.data.tree[e.currentTarget.dataset.index].open
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})
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},
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select(e) {
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const item = e.currentTarget.dataset.item
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if(this.properties.isSelectLastNode) {
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// console.log(item)
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this.triggerEvent('select', { item: item }, { bubbles: true, composed: true })
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// if (!item.children || item.children.length == 0) {
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// this.triggerEvent('select', { item: item }, { bubbles: true, composed: true })
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// } else {
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// this.triggerEvent('select', { tips: '必须选择最后一个节点' }, { bubbles: true, composed: true })
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// }
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} else {
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this.triggerEvent('select', { item: item }, { bubbles: true, composed: true })
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}
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}
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}
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})
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