功能点:
支持不限城市,不限地区(这个东西的实现..真心死磕了挺久) – 左右两边数据的同步
地区一次性多选,若是选择了所有地区会自动转为不限地区
数据迁移箭头的判断..选中数据才会有对应的按钮可以点击
已选位置的数据同步响应调用的地方,当然也可以外部传入…(新增传出,编辑依赖传入再组合)
箭头是iconfont,支持外部传入,默认是我这边的cdn的啦….
!!!这是一个独立的组件,css预处理是用的scss;
写的过程遇到的问题:
因为这个功能会多次需要切换省份城市这些,所以我一次性拉取所有数据存储到localstorage,不然请求接口次数太多了
一开始的不限城市和不限地区我想并入JSON(重组JSON),但是发现虽然能降低处理麻烦,但是数据更乱了…非常不好维护,也有其他组件调用这个JSON的地方(比如其他组件有个地址的三级联动也是依赖这个JSON)
*还有一个就是要考虑两边有不限制这东东的时候,要剔除不能存在的数据,比如你不限制城市,那所有该省份的城市都要干掉,不限制地区也是类似
写左右两边数据的对比是最恶心的,为什么这么说呢?
*左边三级联动的,每个子项都有自己的id和name, 而选择的是组合成的(看GIF图),中间是中划线隔开,这对于推入和推出就带来一堆遍历和比较
*我们这边的后端大佬说不限制的id均为0(城市或者地区),所以这个需要自行组合,最后就是动态图那格式的ID就是后台接受的,,多地区再拼接成字符串….'3-13-2,2-44-3,4-0-0'这种提交到后台..
联动JSON数据格式
regionName: 项的名称
regionId: 项的ID
child: 是否包含有子项
本来想写个props映射下regionName,regionId,child; 但是感觉作用不大,就没写了,(一般公司的地区JSON格式定下来了之后变动的可能性太低)
你能学到什么?
1: 数组的比对,数组的遍历,数组的组合及响应判断
2: vue一些内置指令的使用
3: 组件功能细节的考虑,不限制地区,全部这些按钮在什么情况下能点击
4: 清空数据之后各个状态的恢复和重置等等
代码
manyAreaSelect.vue
<template> <div> <div> <div> <span> 选择省</span> </div> <div> <ul> <li v-for="(item,index) in chinaArea" :class="item.selected?'active':''" :key="index" @click="getCityList(item)">{{item.regionName}}</li> </ul> </div> <div></div> </div> <div> <div> <span>选择市</span> </div> <div> <ul v-show="cityList.length===0"> <li> <<请选择省份</li> </ul> <ul v-show="!notLimitButton.notLimitCity &&cityList.length!==0"> <li v-for="(item,index) in cityList" :class="item.selected ? 'active':''" :key="index" @click="getDistricList(item)">{{item.regionName}}</li> </ul> </div> <div> <button :class="notLimitButton.notLimitCity?'success':''" @click="cityNotLitmit({regionName:'不限',regionId:'0'})" size="mini" :disabled="!selectItem.province.regionName">不限城市</button> </div> </div> <div> <div> <span>选择地区</span> </div> <div> <ul v-show="districList.length===0"> <li> <<请选择城市</li> </ul> <ul v-show="!notLimitButton.notLimitCity && !notLimitButton.notLimitDistrict && districList.length!==0"> <li v-for="(item,index) in districList" :class="item.selected?'active':''" :key="index" @click="getAreaCombineID(item)">{{item.regionName}}</li> </ul> </div> <div> <button :class="notLimitButton.notLimitDistrict ?'success':''" @click="districNotLitmit({regionName:'不限',regionId:'0'})" :disabled="!selectItem.city.regionName ||!selectItem.province.regionName || notLimitButton.notLimitCity ">不限地区</button> </div> </div> <div> <div> <div> <button @click="transferToRight" :disabled="direactionStatusToRight"> <i :class="this.iconDirection.right"></i> </button> </div> <div> <button @click="transferToLeft" :disabled="direactionStatusToLeft"> <i :class="this.iconDirection.left"></i> </button> </div> </div> </div> <div> <div> <span>已选位置</span> </div> <div> <ul> <li v-for="(item,index) in selectedList" :class="item.selected?'active':''" :key="index" @click="selectedAreaSingle(item)">{{item.regionName}}</li> </ul> </div> <div> <button @click="selectedAllArea()" :disabled="rightDataList.length=== 0" :class="selectedAllButtonStatus?'success':''">{{selectedAllButtonStatus?'反选':'全部'}}</button> </div> </div> </div> </template> <script> import _ from 'lodash'; export default { name: 'manyAreaSelect', data: function () { return { chinaArea: JSON.parse(window.localStorage.getItem('chinaArea')) || [], // 这是地区联动的JSON notLimitButton: { notLimitCity: false, // 城市不限 notLimitDistrict: false, // 地区不限 }, selectedAllButtonStatus: false, // 已选位置列表全部按钮的状态 selectItem: { province: {}, city: {}, distric: {} }, cityList: [], // 城市列表 districList: [], // 区域列表 rightDataList: [], // 选中项目组合成的渲染列表 rightData: [], // 选中需要移除的 leftData: [], // 左边选中的转发 } }, props: { selectedData: { type: [String, Object, Array] }, iconDirection: { type: Object, default: function () { // 箭头图标 return { left: 'fzicon fz-ad-you', right: 'fzicon fz-ad-right' } } } }, computed: { selectedList () { // 已选中列表 if (this.selectedData && this.selectedData !== '') { this.rightDataList = this.selectedData; return this.rightDataList; } else { return this.rightDataList; } }, direactionStatusToRight () { // 控制可以转移的箭头状态 if (this.notLimitButton.notLimitCity || this.notLimitButton.notLimitDistrict) { if (this.notLimitButton.notLimitCity) { this.removeAllSelected(this.cityList); this.removeAllSelected(this.districList); return false; } else { if (this.notLimitButton.notLimitDistrict) { this.removeAllSelected(this.districList); return false; } } return false; } else { if (this.selectItem.distric.regionName) { return false; } return true; } }, direactionStatusToLeft () { // 控制可以转移的箭头状态 if (this.rightData.length === 0) { return true } else { return false } } }, methods: { mapSelect (list, value, type) { // 高亮选中 if (type) { return list.map(pitem => { if (pitem.regionId === value.regionId) { if (value.selected && value.selected === true) { this.$delete(pitem, 'selected'); } else { this.$set(pitem, 'selected', true) } } }) } else { return list.map(pitem => { if (pitem.regionId === value.regionId) { if (value.selected && value.selected === true) { this.$delete(pitem, 'selected'); } else { this.$set(pitem, 'selected', true) } } else { this.$delete(pitem, 'selected'); } }) } }, resetToDefault () { this.leftData = []; // 清空需要转移的数组 this.notLimitButton = { // 重置按钮状态 notLimitCity: false, // 城市不限 notLimitDistrict: false, // 地区不限 }; this.selectItem.city = {}; this.selectItem.distric = {} this.removeAllSelected(this.cityList); // 清除选中状态 this.removeAllSelected(this.districList); // 清除选中状态 this.cityList = []; this.districList = []; }, getCityList (item) { this.resetToDefault(); if (item) { this.cityList = item.child; // 获取城市列表 this.selectItem.province = item; // 保存省份对象 this.mapSelect(this.chinaArea, item); // 高亮选择,单选 } }, getDistricList (item) { this.leftData = []; // 清空需要转移的数组 this.notLimitButton.notLimitDistrict = false; // 重置按钮状态 this.removeAllSelected(this.districList); // 清除选中状态 this.selectItem.distric = {}; this.districList = []; if (item) { this.districList = item.child; // 获取区域列表 this.selectItem.city = item; // 保存省份对象 this.mapSelect(this.cityList, item); // 高亮选择,单选 } }, getAreaCombineID (item) { // 获取组合ID if (item) { this.selectItem.distric = item; this.mapSelect(this.districList, item, 'manySelect'); // 区域高亮选择,多选 this.leftData.push({ regionName: this.selectItem.province.regionName + '-' + this.selectItem.city.regionName + '-' + item.regionName, regionId: this.selectItem.province.regionId + '-' + this.selectItem.city.regionId + '-' + item.regionId }) this.leftData = _.uniqBy(this.leftData, 'regionId'); if (this.leftData.length === this.districList.length) { this.leftData = []; this.notLimitButton.notLimitDistrict = true; // 转为不限制地区 this.leftData.push({ regionName: this.selectItem.province.regionName + '-' + this.selectItem.city.regionName + '-不限', regionId: this.selectItem.province.regionId + '-' + this.selectItem.city.regionId + '-0' }) } } }, cityNotLitmit (item) { // 城市不限 this.leftData = []; // 请空数组 this.notLimitButton.notLimitCity = !this.notLimitButton.notLimitCity; // 不限按钮状态 this.leftData.push({ regionName: this.selectItem.province.regionName + '-不限-不限', regionId: this.selectItem.province.regionId + '-0-0' }) }, districNotLitmit (item) { // 区域不限 this.leftData = []; // 请空数组 this.notLimitButton.notLimitDistrict = !this.notLimitButton.notLimitDistrict; // 不限按钮状态 this.leftData.push({ regionName: this.selectItem.province.regionName + '-' + this.selectItem.city.regionName + '-不限', regionId: this.selectItem.province.regionId + '-' + this.selectItem.city.regionId + '-0' }) }, transferToRight () { // 选中推入到已选中列表区域 if (this.leftData && this.leftData.length !== 0) { if (this.leftData.length === 1) { // 长度只有1,那就只有不限城市或者地区了 let limitId = this.leftData[0].regionId.split('-'); // 比对比对,切割成数组 this.rightDataList.map(item => { let id = item.regionId.split('-'); if (limitId[0] === id[0]) { if (limitId[1] === '0') { // 不限城市 this.rightDataList = this.rightDataList.filter(ritem => { let rid = ritem.regionId.split('-'); if (limitId[0] !== rid[0]) { return ritem; } }) } else { if (limitId[2] === '0') { // 不限地区 this.rightDataList = this.rightDataList.filter(ritem => { let rid = ritem.regionId.split('-'); if ((limitId[0] === rid[0] && limitId[1] === rid[1])) { if (ritem[2] === '0') { return ritem; } } else { if (limitId[0] !== rid[0] || limitId[1] !== rid[1]) { return ritem; } } }) } else { this.rightDataList = this.rightDataList.filter(ritem => { let rid = ritem.regionId.split('-'); if (limitId[0] === rid[0]) { if (limitId[1] === rid[1]) { if (!(rid[2] === '0')) { return ritem; } } else { if (!(rid[1] === '0')) { return ritem } } } else { return ritem } }) } } } }) } else { let limitId = this.leftData[0].regionId.split('-'); // 比对比对,切割成数组 this.rightDataList = this.rightDataList.filter(ritem => { let rid = ritem.regionId.split('-'); if (limitId[0] === rid[0]) { if (limitId[1] === rid[1]) { if (!(rid[2] === '0')) { return ritem; } } else { if (!(rid[1] === '0')) { return ritem } } } else { return ritem } }) } this.leftData.map(item => { this.rightDataList.push(item); }) this.rightDataList = _.uniqBy(this.rightDataList, 'regionId'); this.resetToDefault(); } }, selectedAreaSingle (item) { // 已选择区域单个选择 if (item) { this.rightData = []; this.mapSelect(this.rightDataList, item, 'manySelect'); // 区域高亮选择,多选 this.rightDataList.map(item => { if (item.selected) { this.rightData.push(item) } }) } }, selectedAllArea () { // 已选中区域全选反选 if (this.selectedAllButtonStatus) { this.removeAllSelected(this.rightDataList); this.rightData = []; } else { this.rightDataList.map(item => this.$set(item, 'selected', true)); this.rightData = this.rightDataList; } this.selectedAllButtonStatus = !this.selectedAllButtonStatus; }, transferToLeft () { // 从已选中列表区域退回待转发区域 if (this.rightData && this.rightData.length !== 0) { this.rightDataList = this.rightDataList.filter(item => { if (!item.selected) { return item; } }) this.rightData = []; } }, removeAllSelected (list) { // 清空选中状态 list.map(item => this.$delete(item, 'selected')); } }, watch: { 'rightDataList' (newValue, oldValue) { // 选择列表的值变动响应外部值的变动 if (newValue.length !== this.rightData.length) { this.selectedAllButtonStatus = false; } else { if (newValue.length === 0) { this.selectedAllButtonStatus = false; } else { this.selectedAllButtonStatus = true; } } this.$emit('update:selectedData', newValue); } } } </script> <style scoped lang="scss"> ul { padding: 0; margin: 0; max-height: 100%; overflow-y: auto; li { cursor: pointer; text-align: center; padding: 5px; &.active, &:hover { background: #e4e8f1; color: #48576a; } } } .manyAreaSelect { position: relative; z-index: 2005; .item { border: 1px solid #d1dbe5; background: #fff; box-shadow: 0 2px 4px rgba(0, 0, 0, .12), 0 0 6px rgba(0, 0, 0, .04); display: inline-block; vertical-align: middle; min-width: 180px; box-sizing: border-box; position: relative; height: 100%; min-height: 260px; } .item-title { height: 36px; line-height: 36px; background: #fbfdff; margin: 0; border-bottom: 1px solid #d1dbe5; box-sizing: border-box; color: #1f2d3d; text-align: center; } .trangle { background: transparent; display: inline-block; vertical-align: middle; width: 40px; box-sizing: border-box; height: 100%; position: relative; .trangle-wrap { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); } .left, .right { margin: 10px 5px; } ; } .item-content { font-size: 13px; height: 190px; padding: 8px 2px; } .item-footer { padding: 5px 0; height: 40px; text-align: center; } } .selectedContent { li { text-align: left; padding-left: 25px; } } .button { display: inline-block; line-height: 1; white-space: nowrap; cursor: pointer; background: #fff; border: 1px solid #c4c4c4; color: #1f2d3d; margin: 0; border-radius: 4px; padding: 4px; font-size: 12px; border-radius: 4px; -webkit-appearance: button; outline: none; &.success { background: #42d885; border-color: #42d885; color: #fff; } &:disabled { color: #bfcbd9; cursor: not-allowed; background-image: none; background-color: #eef1f6; border-color: #d1dbe5; } } </style>
用法