<template xlang="wxml">
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<view class="tki-tree">
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<view class="tki-tree-mask" :class="{'show':showTree}" @tap="_cancel"></view>
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<view class="tki-tree-cnt" :class="{'show':showTree}">
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<view class="tki-tree-bar">
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<view class="tki-tree-bar-cancel" :style="{'color':cancelColor}" hover-class="hover-c" @tap="_cancel">取消
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</view>
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<view class="tki-tree-bar-title" :style="{'color':titleColor}">{{title}}</view>
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<view class="tki-tree-bar-confirm" :style="{'color':confirmColor}" hover-class="hover-c"
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@tap="_confirm">确定</view>
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</view>
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<view class="tki-tree-view">
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<scroll-view class="tki-tree-view-sc" :scroll-y="true">
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<block v-for="(item, index) in treeList" :key="index">
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<view class="tki-tree-item" :style="[{
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paddingLeft: item.rank*15 + 'px',
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zIndex: item.rank*-1 +50
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}]" :class="{
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show: item.show,
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last: item.lastRank,
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showchild: item.showChild,
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open: item.open,
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}">
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<view class="tki-tree-label" @tap.stop="_treeItemTap(item, index)">
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<image class="tki-tree-icon"
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:src="item.lastRank ? lastIcon : item.showChild ? currentIcon : defaultIcon">
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</image>
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{{item.name}}
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</view>
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<view class="tki-tree-check" @tap.stop="_treeItemSelect(item, index)"
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v-if="selectParent?true:item.lastRank">
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<view class="tki-tree-check-yes" v-if="item.checked" :class="{'radio':!multiple}"
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:style="{'border-color':confirmColor}">
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<view class="tki-tree-check-yes-b" :style="{'background-color':confirmColor}">
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</view>
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</view>
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<view class="tki-tree-check-no" v-else :class="{'radio':!multiple}"
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:style="{'border-color':confirmColor}"></view>
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</view>
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</view>
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</block>
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</scroll-view>
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</view>
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</view>
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</view>
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</template>
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<script>
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export default {
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name: "tki-tree",
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props: {
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range: {
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type: Array,
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default: function() {
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return []
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}
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},
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idKey: {//字段key值
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type: String,
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default: 'id'
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},
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nameKey: {//字段value值
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type: String,
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default: 'name'
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},
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allKey: {//冗余字段
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type: String,
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default: 'value'
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},
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title: {//头
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type: String,
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default: ''
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},
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multiple: { // 是否可以多选
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type: Boolean,
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default: true
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// default: true
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},
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cascade: { // 是否级联选择
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type: Boolean,
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default: false
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// default: true
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},
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selectParent: { //是否可以选父级
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type: Boolean,
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default: true
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},
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foldAll: { //折叠时关闭所有已经打开的子集，再次打开时需要一级一级打开
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type: Boolean,
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default: false
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},
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confirmColor: { // 确定按钮颜色
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type: String,
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default: '' // #007aff
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},
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cancelColor: { // 取消按钮颜色
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type: String,
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default: '' // #757575
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},
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titleColor: { // 标题颜色
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type: String,
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default: '' // #757575
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},
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currentIcon: { // 展开时候的ic
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type: String,
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default: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFEAAABRCAYAAACqj0o2AAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAyJpVFh0WE1MOmNvbS5hZG9iZS54bXAAAAAAADw/eHBhY2tldCBiZWdpbj0i77u/IiBpZD0iVzVNME1wQ2VoaUh6cmVTek5UY3prYzlkIj8+IDx4OnhtcG1ldGEgeG1sbnM6eD0iYWRvYmU6bnM6bWV0YS8iIHg6eG1wdGs9IkFkb2JlIFhNUCBDb3JlIDUuMy1jMDExIDY2LjE0NTY2MSwgMjAxMi8wMi8wNi0xNDo1NjoyNyAgICAgICAgIj4gPHJkZjpSREYgeG1sbnM6cmRmPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5LzAyLzIyLXJkZi1zeW50YXgtbnMjIj4gPHJkZjpEZXNjcmlwdGlvbiByZGY6YWJvdXQ9IiIgeG1sbnM6eG1wPSJodHRwOi8vbnMuYWRvYmUuY29tL3hhcC8xLjAvIiB4bWxuczp4bXBNTT0iaHR0cDovL25zLmFkb2JlLmNvbS94YXAvMS4wL21tLyIgeG1sbnM6c3RSZWY9Imh0dHA6Ly9ucy5hZG9iZS5jb20veGFwLzEuMC9zVHlwZS9SZXNvdXJjZVJlZiMiIHhtcDpDcmVhdG9yVG9vbD0iQWRvYmUgUGhvdG9zaG9wIENTNiAoV2luZG93cykiIHhtcE1NOkluc3RhbmNlSUQ9InhtcC5paWQ6MEQ0QTM0MzQ1Q0RBMTFFOUE0MjY4NzI1Njc1RjI1ODIiIHhtcE1NOkRvY3VtZW50SUQ9InhtcC5kaWQ6MEQ0QTM0MzU1Q0RBMTFFOUE0MjY4NzI1Njc1RjI1ODIiPiA8eG1wTU06RGVyaXZlZEZyb20gc3RSZWY6aW5zdGFuY2VJRD0ieG1wLmlpZDowRDRBMzQzMjVDREExMUU5QTQyNjg3MjU2NzVGMjU4MiIgc3RSZWY6ZG9jdW1lbnRJRD0ieG1wLmRpZDowRDRBMzQzMzVDREExMUU5QTQyNjg3MjU2NzVGMjU4MiIvPiA8L3JkZjpEZXNjcmlwdGlvbj4gPC9yZGY6UkRGPiA8L3g6eG1wbWV0YT4gPD94cGFja2V0IGVuZD0iciI/PidwepsAAAK0SURBVHja7JxbTsJAFIYHww7ciStgCeoGvGxAiOsgURegoL5720AXYLiIr0aJviq3Zx3PhIEnKG3ndtr+f3KixrSUj/ZjzjClIqUUiFm2gAAQAREQEUAEREAERAQQAREQAREBREAEREBEEqa67h9RFDWllDv0awWYlqlQHmu1WjMRRMoV1QFttA12y3xRtdNczq8EsE4/f8FumX2q77ROvNXk8UGMEKdUz6tYJHljaZAbuyUH+UR1to5BEohTuqwPCeS4pAA/qY6o/kyHOAMCeRK3owJnj+rH1jjxhqpVsstaebCz6TmnHWyXyY+xHjSBWBY/bvSgadtXBj9u9KCN3rnIfkzkQVsTEEX0Y2IP2oKo/HhMICcFAThUcwVZNGU6FdbX/XURzkbVF4+ybGhjPrFdgP66QdXNurGtSdk6Xdb9nAJ8oDo3OQlsQZzkdPw41ONBo6vI5scDefRjZg+6gpg3Pxp50CXEvPjR2IOuIXL3oxUPuobI3Y9WPOgDIlc/WvOgL4iL/vqFCcD7LH0xB4hj7cfQ/fWH9qCT+FhG0tN+DBk1PzjOM0SVllixcsBT1AvYc/kAPhc0hRg/3uvxoCgKRN9+dOrBUBB9+9GpB0NC9OVH5x4MDdG1H714kANEV3705kEOEBf9dcPi/lQnsuvLg1wgSu3Ha0v7Uh4MMgUXeuG71H407a+VBy9CPQkOdw+MtB+nGbd/D+FBbhBNxo9SjwcngJjNj0E9yBFiFj8G9SBXiGn8GNyDnCEm8SMLD3KHGOdHNh7kDjHOj2w8mAeIi/5arX+c6b/fxHz9oADEdGdjR/fXCw/OOB5oVfCOgnepz8IB14PMw03jCmTE+QBx5z0gAmKSqK9OUF+hcAeIhu/QYr4Qie8rjW83hhMBERARQAREQAREBBABERCLnH8BBgA+TQI7U4t53AAAAABJRU5ErkJggg=='
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},
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defaultIcon: { // 折叠时候的ic
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type: String,
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default: 'data:image/png;base64,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'
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},
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lastIcon: { // 没有子集的ic
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type: String,
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default: ''
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}
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},
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data() {
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return {
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showTree: false,
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treeList: [],
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selectIndex: -1,
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returnedItem: [], //定义一个空数组
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pids: [],
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ancestorsIds: [],
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childNums: [],
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}
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},
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computed: {},
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methods: {
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_show() {
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this.stopScroll()
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this.showTree = true
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},
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_hide() {
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this.canScroll()
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this.showTree = false
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},
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_cancel() {
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this._hide()
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this.$emit("cancel", []);
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},
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_confirm() {
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// 处理所选数据
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let rt = [],
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obj = {};
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this.treeList.forEach((v, i) => {
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if (this.treeList[i].checked) {
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rt.push({
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id: this.treeList[i].id,
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name: this.treeList[i].name,
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value: this.treeList[i].value
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})
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}
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})
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this._hide()
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this.$emit("confirm", rt);
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},
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//扁平化树结构
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_renderTreeList(list = [], rank = 0, parentId = [], parents = []) {
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list.forEach(item => {
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this.treeList.push({
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id: item[this.idKey],
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name: item[this.nameKey],
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value: item[this.allKey],
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source: item,
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parentId, // 父级id数组
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parents, // 父级id数组
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rank, // 层级
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showChild: false, //子级是否显示
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open: false, //是否打开
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show: rank === 0, // 自身是否显示
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hideArr: [],
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orChecked: item.checked ? item.checked : false,
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checked: item.checked ? item.checked : false,
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childNum: 0
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})
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if (Array.isArray(item.childList) && item.childList.length > 0) {
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// console.log(item)
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let parentid = [...parentId],
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parentArr = [...parents];
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delete parentArr.childList
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parentid.push(item[this.idKey]);
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parentArr.push({
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[this.idKey]: item[this.idKey],
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[this.nameKey]: item[this.nameKey],
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[this.allKey]: item[this.allKey]
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})
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this._renderTreeList(item.childList, rank + 1, parentid, parentArr)
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} else {
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this.treeList[this.treeList.length - 1].lastRank = true;
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}
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})
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},
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// 处理默认选择
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_defaultSelect() {
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this.treeList.forEach((v, i) => {
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if (v.checked) {
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this.treeList.forEach((v2, i2) => {
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if (v.parentId.toString().indexOf(v2.parentId.toString()) >= 0) {
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v2.show = true
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if (v.parentId.includes(v2.id)) {
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v2.showChild = true;
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v2.open = true;
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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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getOwn(id, arr) {
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//利用foreach循环遍历
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arr.forEach((item) => {
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//判断递归结束条件
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if (item[this.idKey] == id) {
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// 存储数据到空数组
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this.returnedItem = item
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} else if (item.childList != null) //判断chlidren是否有数据
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{
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//递归调用
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this.getOwn(id, item.childList);
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}
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})
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return this.returnedItem
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},
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setShow(id, arr, isShow) {
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arr.forEach((item, index) => {
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if (item.parentId.includes(id)) {
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this.treeList[index].showChild = isShow
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this.treeList[index].show = isShow
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} else if (item.childList !== undefined) {
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this.setShow(id, item.childList, isShow)
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}
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})
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},
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// 点击
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_treeItemTap(item, index) {
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// console.log(item)
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if (item.lastRank === true) {
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//点击最后一级时触发事件
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this.treeList[index].checked = !this.treeList[index].checked
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this._fixMultiple(index)
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return;
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}
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let id = item.id;
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item.showChild = !item.showChild;
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// qingqian
|
if (item.showChild) {
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const range = this.range
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const parentIdArr = item.parentId
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// 找到当前元素
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const own = this.getOwn(id, range)
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const checkedchildList = own.childList
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// 子元素插入的索引位置
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const nextIndex = this.treeList.findIndex(itemT => itemT.id === item.id)
|
if (checkedchildList === undefined || checkedchildList.length < 1) {
|
return
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}
|
// 子节点数量
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this.treeList[index].childNum = checkedchildList.length
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const newRank = item.rank + 1
|
checkedchildList.forEach(itemC => {
|
const childObj = {
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id: itemC[this.idKey],
|
name: itemC[this.nameKey],
|
value: itemC[this.allKey],
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source: {},
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parentId: [item.id], // 父级id数组
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parents: [item], // 父级id数组
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rank: newRank, // 层级
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showChild: false, //子级是否显示
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open: false, //是否打开
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show: 1, // 自身是否显示
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hideArr: [],
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lastRank: (itemC.childList && itemC.childList.length > 0) ? false : true,
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orChecked: this.treeList[index].checked,
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checked: this.cascade ? this.treeList[index].checked : false,
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}
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if (!this.treeList.some(itemT => itemT.id === itemC[this.idKey])) {
|
this.treeList.splice(nextIndex + 1, 0, childObj)
|
}
|
})
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}
|
// 展开/隐藏子级/孙级
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let list = this.treeList
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item.open = item.showChild ? true : !item.open;
|
list.forEach((childItem, i) => {
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if (item.showChild === false) {
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//隐藏所有子级
|
if (!childItem.parentId.includes(id)) {
|
return;
|
}
|
//TODO: 修改
|
if (!this.foldAll) {
|
if (childItem.lastRank !== true && !childItem.open) {
|
childItem.showChild = false;
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this.setShow(childItem.id, this.treeList, false)
|
}
|
// 为隐藏的内容添加一个标记
|
if (childItem.show) {
|
childItem.hideArr[item.rank] = id
|
}
|
} else {
|
if (childItem.lastRank !== true) {
|
childItem.showChild = false;
|
// 继续隐藏子级的的子级
|
this.setShow(childItem.id, this.treeList, false)
|
}
|
}
|
if (childItem.childList !== undefined) {
|
childItem.childList.forEach((childItem1, i1) => {
|
if (!childItem1.parentId.includes(childItem.id)) {
|
return
|
}
|
childItem.childList[i1].showChild = false
|
childItem.childList[i1].show = false
|
})
|
}
|
childItem.show = false;
|
} else {
|
// 打开子集
|
if (childItem.parentId[childItem.parentId.length - 1] === id) {
|
childItem.show = true;
|
}
|
// 打开被隐藏的子集
|
if (childItem.parentId.includes(id) && !this.foldAll) {
|
// console.log(childItem.hideArr)
|
if (childItem.hideArr[item.rank] === id) {
|
childItem.show = true;
|
if (childItem.open && childItem.showChild) {
|
childItem.showChild = true
|
} else {
|
childItem.showChild = false
|
}
|
childItem.hideArr[item.rank] = null
|
}
|
}
|
}
|
})
|
},
|
// 通过父id处理子级
|
syncChecked(trees, pid, checked) {
|
trees.forEach((item, index) => {
|
if (item.parentId.includes(pid)) {
|
this.treeList[index].checked = checked
|
this.syncChecked(trees, item.id, checked)
|
} else if (item.childList !== undefined) {
|
this.syncChecked(item.childList, pid, checked)
|
}
|
})
|
},
|
// 获取父级往上所有层级的id 并同步状态
|
setAncestors(pids, checked) {
|
this.treeList.forEach((item, index) => {
|
if (pids.includes(item.id)) {
|
if (checked && this.childNums[item.id] !== undefined && item.childNum === this.childNums[
|
item.id]) {
|
// 子级全部选中, 父级才选中
|
this.treeList[index].checked = true
|
} else {
|
this.treeList[index].checked = false
|
}
|
this.setAncestors(item.parentId, checked)
|
}
|
})
|
},
|
_treeItemSelect(item, index) {
|
this.treeList[index].checked = !this.treeList[index].checked
|
// 选父级, 子级自动全选
|
if (this.cascade) {
|
this.syncChecked(this.treeList, item.id, this.treeList[index].checked)
|
}
|
|
if (item.rank > 0) {
|
item.parentId.forEach((pid, indexP) => {
|
const parent = this.treeList.filter(i => i.id === pid)
|
const childNum = parent.length > 0 ? parent[0].childNum : 0
|
if (this.childNums[pid] === undefined) {
|
this.childNums[pid] = 1
|
} else if (this.childNums[pid] < childNum) {
|
this.childNums[pid]++
|
}
|
})
|
//子级选择/选满/取消选择, 父级往上同步状态
|
if (this.cascade) {
|
this.setAncestors(item.parentId, this.treeList[index].checked)
|
}
|
}
|
this._fixMultiple(index)
|
},
|
// 处理单选多选
|
_fixMultiple(index) {
|
if (!this.multiple) {
|
// 如果是单选
|
this.treeList.forEach((v, i) => {
|
if (i != index) {
|
this.treeList[i].checked = false
|
} else {
|
this.treeList[i].checked = true
|
}
|
})
|
}
|
},
|
// 重置数据
|
_reTreeList() {
|
this.treeList.forEach((v, i) => {
|
this.treeList[i].checked = v.orChecked
|
})
|
},
|
_initTree(range = this.range) {
|
this.treeList = [];
|
this._renderTreeList(range);
|
this.$nextTick(() => {
|
this._defaultSelect(range)
|
})
|
}
|
},
|
watch: {
|
range(list) {
|
this._initTree(list);
|
},
|
multiple() {
|
if (this.range.length) {
|
this._reTreeList();
|
}
|
},
|
selectParent() {
|
if (this.range.length) {
|
this._reTreeList();
|
}
|
},
|
},
|
mounted() {
|
this._initTree();
|
}
|
}
|
</script>
|
|
<style scoped>
|
@import "./style.css";
|
</style>
|
