<template xlang="wxml">
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<view class="tki-tree">
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<view class="tki-tree-mask" :class="{ show: showTree }" @click.stop="_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" @click.stop="_cancel">取消</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" @click.stop="_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
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v-if="item.show"
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class="tki-tree-item"
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:style="[
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{
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paddingLeft: item.rank * 15 + 'px',
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zIndex: item.rank * -1 + 50
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}
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]"
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:class="{
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border: border === true,
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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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>
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<view class="tki-tree-label" @tap.stop="_treeItemTap(item, index)">
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<image class="tki-tree-icon" :src="item.lastRank ? lastIcon : item.showChild ? currentIcon : defaultIcon"></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)" v-if="selectParent ? true : item.lastRank">
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<view class="tki-tree-check-yes" v-if="item.checked" :class="{ radio: !multiple }" :style="{ 'border-color': confirmColor }">
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<view class="tki-tree-check-yes-b" :style="{ 'background-color': confirmColor }"></view>
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</view>
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<view class="tki-tree-check-no" v-else :class="{ radio: !multiple }" :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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lazy: {
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type: Boolean,
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default: false
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},
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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: {
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type: String,
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default: 'id'
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},
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rangeKey: {
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type: String,
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default: 'name'
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},
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title: {
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type: String,
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default: ''
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},
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multiple: {
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// 是否可以多选
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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: {
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//是否可以选父级
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type: Boolean,
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default: false
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},
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foldAll: {
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//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: {
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// 确定按钮颜色
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type: String,
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default: '' // #07bb07
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},
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cancelColor: {
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// 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: {
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// 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: {
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// 展开时候的ic
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type: String,
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default:
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'data:image/png;base64,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'
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},
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defaultIcon: {
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// 折叠时候的ic
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type: String,
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default:
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'data:image/png;base64,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'
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},
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lastIcon: {
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// 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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border: {
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// 是否有分割线
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type: Boolean,
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default: false
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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.showTree = true;
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},
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_hide() {
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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.$emit('cancel', '');
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},
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_confirm() {
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// 处理所选数据
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let rt = [],
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obj = {};
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this.treeList.forEach((v, i) => {
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if (this.treeList[i].checked) {
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rt.push(this.treeList[i].id);
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}
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});
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this._hide();
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this.$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.rangeKey],
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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.children) && item.children.length > 0) {
|
// console.log(item)
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let parentid = [...parentId],
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parentArr = [...parents];
|
delete parentArr.children;
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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.rangeKey]: item[this.rangeKey]
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});
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// lazy
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if (!this.lazy) {
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this._renderTreeList(item.children, rank + 1, parentid, parentArr);
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}
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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)) {
|
v2.showChild = true;
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v2.open = true;
|
}
|
}
|
});
|
}
|
});
|
},
|
getOwn(id, arr) {
|
//利用foreach循环遍历
|
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.children != null) {
|
//判断chlidren是否有数据
|
//递归调用
|
this.getOwn(id, item.children);
|
}
|
});
|
return this.returnedItem;
|
},
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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;
|
this.treeList[index].show = isShow;
|
} else if (item.children !== undefined) {
|
this.setShow(id, item.children, isShow);
|
}
|
});
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},
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// 点击
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_treeItemTap(item, index) {
|
// console.log(item)
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if (item.lastRank === true) {
|
//点击最后一级时触发事件
|
this.treeList[index].checked = !this.treeList[index].checked;
|
this._fixMultiple(index);
|
return;
|
}
|
let id = item.id;
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item.showChild = !item.showChild;
|
// qingqian
|
if (item.showChild) {
|
const range = this.range;
|
const parentIdArr = item.parentId;
|
// 找到当前元素
|
const own = this.getOwn(id, range);
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const checkedChildren = own.children;
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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);
|
console.log(checkedChildren);
|
if (checkedChildren === undefined || checkedChildren.length < 1) {
|
return;
|
}
|
// 子节点数量
|
this.treeList[index].childNum = checkedChildren.length;
|
const newRank = item.rank + 1;
|
checkedChildren.forEach(itemC => {
|
const childObj = {
|
id: itemC[this.idKey],
|
name: itemC[this.rangeKey],
|
source: {},
|
parentId: [item.id], // 父级id数组
|
parents: [item], // 父级id数组
|
rank: newRank, // 层级
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showChild: false, //子级是否显示
|
open: false, //是否打开
|
show: 1, // 自身是否显示
|
hideArr: [],
|
orChecked: this.treeList[index].checked,
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checked: this.treeList[index].checked
|
};
|
if (!this.treeList.some(itemT => itemT.id === itemC[this.idKey])) {
|
this.treeList.splice(nextIndex + 1, 0, childObj);
|
}
|
});
|
}
|
// 展开/隐藏子级/孙级
|
let list = this.treeList;
|
item.open = item.showChild ? true : !item.open;
|
list.forEach((childItem, i) => {
|
if (item.showChild === false) {
|
//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;
|
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.children !== undefined) {
|
childItem.children.forEach((childItem1, i1) => {
|
if (!childItem1.parentId.includes(childItem.id)) {
|
return;
|
}
|
childItem.children[i1].showChild = false;
|
childItem.children[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.children !== undefined) {
|
this.syncChecked(item.children, 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
|
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
|
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>
|
