antd vue select 实现组件多选

效果图

组件的引用

<Multiplecascader

:value="arrData"

:allowClear="true"

placeholder="请选择"

:selectOptionsConfig="{

key: 'code',

value: 'code',

text: 'name',

children: 'child',

allText=""

noDataText="暂无数据"

:treeData="binData"

@change="change"

</div>

import Multiplecascader from "@/components/MultipleCascader/index.vue";

export default {

name: "personSelect",

data() {

binData:[

{"name":"AA","code":"AA",

"child":[

{"name":"BB","code":"BB","child":[]},

{"name":"CC","code":"CC","child":[]},

{"name":"DD","code":"DD","child":[]}

]

}

arrData:[],

}

组件的代码

<template>

<div

class="gb-ant-select-multiple-cascader"

:class="{ 'multiple-cascader-outside': !isClickOutSide }"

v-clickoutside="handleDropDownOutSide"

<a-select

v-bind="$attrs"

mode="multiple"

:maxTagTextLength="maxTagTextLength"

:maxTagCount="maxTagCount"

style="width: 100%"

:placeholder="placeholder"

:value="selectedValueArr"

:notFoundContent="null"

:open="isOpen"

showArrow

:allowClear="allowClear"

optionLabelProp="text"

:dropdownMatchSelectWidth="false"

:getPopupContainer="(tirggerNode) => tirggerNode.parentNode"

@focus="handleFocus"

@deselect="handleDeselect"

<a-icon

type="close-circle"

slot="clearIcon"

theme="filled"

@click="handleClearAll"

<v-nodes :vnodes="menu" />

<a-empty :image="simpleImage" :description="noDataText"></a-empty>

</div>

<ul

class="cascader-content-list"

v-for="(itemList, levelIndex) in treeDataList"

:key="levelIndex"

<li

class="cascader-content-item"

v-for="(subItem, subIndex) in itemList"

:key="subItem[selectOptionsConfig.key]"

:title="subItem[selectOptionsConfig.text]"

:class="{ 'cascader-content-item-active': subItem.$active }"

@click="

handleCascaderItemClick(subItem, subIndex, levelIndex)

<a-checkbox

:indeterminate="!!subItem.$indeterminate"

:checked="!!subItem.$checked"

@click.self="

(e) => handleCheckClick(e, subItem, subIndex, levelIndex)

{{ subItem[selectOptionsConfig.text] }}</span

<a-icon

type="right"

style="font-size: 10px"

v-if="

subItem[selectOptionsConfig.children] &&

subItem[selectOptionsConfig.children].length > 0

</li>

</ul>

</div>

</template>

<a-select-option

v-for="item in treeToList"

:key="item[selectOptionsConfig.key]"

:value="item[selectOptionsConfig.value]"

:text="item[selectOptionsConfig.text]"

</a-select-option>

</a-select>

</div>

</template>

import { Empty } from "ant-design-vue";

import { cloneDeep } from "lodash";

const clickoutside = {

// 初始化指令

bind(el, binding) {

function documentHandler(e) {

if (el.contains(e.target)) {

return false;

}

if (binding.expression) {

binding.value(e);

}

el.__vueClickOutside__ = documentHandler;

document.addEventListener("click", documentHandler);

update() {},

unbind(el) {

document.removeEventListener("click", el.__vueClickOutside__);

delete el.__vueClickOutside__;

};

export default {

name: "gbAntSelectMultipleCascader",

components: {

VNodes: {

functional: true,

render: (h, ctx) => {

return ctx.props.vnodes;

directives: { clickoutside },

props: {

allowClear: {

type: Boolean,

default: true,

allText: {

type: String,

default: "全部",

noDataText: {

type: String,

default: "暂无数据",

treeData: {

type: Array,

default: () => {

return [];

dropdownClassName: {

type: String,

selectOptionsConfig: {

type: Object,

default: () => {

return {

key: "id",

value: "value",

text: "title",

children: "children",

};

maxTagCount: {

type: Number,

maxTagTextLength: {

type: Number,

placeholder: {

type: String,

default: "请搜索",

checkAll: {

type: Boolean,

default: false,

value: {

type: Array,

beforeCreate() {

this.simpleImage = Empty.PRESENTED_IMAGE_SIMPLE;

destroyed() {

this.timer && clearInterval(this.timer);

data() {

return {

isOpen: false,

isCheckAll: this.checkAll,

isIndeterminateAll: false,

isClickOutSide: true,

selectedValueArr: this.value || undefined,

treeDataList: cloneDeep(this.treeData),

treeToList: [],

};

watch: {

checkAll: {

handler(newVal) {

if (newVal) {

this.timer = setInterval(() => {

if (this.treeDataList.length > 0) {

clearInterval(this.timer);

this.handleCascaderAllItemClick(true);

}

}, 30);

}

immediate: true,

value(newVal) {

// console.log(667,newVal,this.treeData)

this.selectedValueArr = newVal;

// this.treeDataList = this.treeData;

this.initDefaultKeys(newVal, this.treeDataList);

return newVal;

treeData(newVal) {

this.treeListToArrList(newVal[0]);

this.initDefaultKeys(this.selectedValueArr, newVal);

this.treeDataList = newVal;

return newVal;

//打开组件

isOpen(newVal) {

//打开为true 并且没有选择

if (newVal && !this.value.length) {

//执行清空操作

this.handleClearAll();

this.isOpen = true;

}

methods: {

handleClearAll() {

this.treeDataList = this.treeData;

this.isOpen = false;

this.isCheckAll = false;

this.isClickOutSide = true;

this.isIndeterminateAll = false;

this.updatePostData();

initDefaultKeys(selectedArr, treeDataList) {

if (

selectedArr &&

selectedArr.length > 0 &&

treeDataList &&

treeDataList.length > 0

) {

const treeDataListClone = cloneDeep(treeDataList);

const treeToListClone = cloneDeep(this.treeToList);

selectedArr.forEach((item) => {

const curretnItemList = [];

this.findKeysItem(treeDataListClone[0], item, curretnItemList);

let currentItem = {};

if (curretnItemList.length > 0) {

currentItem = curretnItemList[0];

}

if (

!treeToListClone.find(

(listItem) =>

listItem[this.selectOptionsConfig.value] ===

currentItem[this.selectOptionsConfig.value]

)

) {

treeToListClone.push(currentItem);

}

currentItem.$checked = true;

if (

currentItem[this.selectOptionsConfig.children] &&

currentItem[this.selectOptionsConfig.children].length > 0

) {

this.setAllDataTreeChecked(

currentItem[this.selectOptionsConfig.children],

true

);

}

});

this.setCheckBoxIndeteriminate(treeDataListClone[0]);

this.$nextTick(() => {

this.treeToList = treeToListClone;

this.treeDataList = treeDataListClone;

});

}

handleCascaderAllItemClick(checkAll) {

const treeDataListClone = cloneDeep(this.treeDataList);

if (checkAll) {

this.setAllDataTreeChecked(treeDataListClone[0], checkAll);

} else {

this.setAllDataTreeChecked(treeDataListClone[0], !this.isCheckAll);

}

this.clearAllDataActive(treeDataListClone[0]);

this.setCheckBoxIndeteriminate(treeDataListClone[0]);

this.treeDataList = treeDataListClone;

this.updatePostData();

handleDeselect(value) {

const treeDataListClone = cloneDeep(this.treeDataList);

const currentItemList = [];

this.findKeysItem(treeDataListClone[0], value, currentItemList);

let currentItem = {};

if (currentItemList.length > 0) {

currentItem = currentItemList[0];

}

currentItem.$checked = false;

currentItem.$active = false;

if (

currentItem[this.selectOptionsConfig.children] &&

currentItem[this.selectOptionsConfig.children].length > 0

) {

this.setAllDataTreeChecked(

currentItem[this.selectOptionsConfig.children],

false

);

}

this.setCheckBoxIndeteriminate(treeDataListClone[0]);

this.treeDataList = treeDataListClone;

this.updatePostData();

handleCheckClick(e, item, index, levelIndex) {

const treeDataListClone = cloneDeep(this.treeDataList);

const childrenTag = this.selectOptionsConfig.children;

const valueTag = this.selectOptionsConfig.value;

const currentItemList = [];

this.findKeysItem(treeDataListClone[0], item[valueTag], currentItemList);

let currentItem = {};

if (currentItemList.length > 0) {

currentItem = currentItemList[0];

}

e.stopPropagation();

e.cancelBubble = true;

const checked = e.target.checked;

if (!currentItem.$active && levelIndex !== treeDataListClone.length - 1) {

// 清空所有选中状态

this.clearAllDataActive(treeDataListClone[0]);

}

if (currentItem[childrenTag] && currentItem[childrenTag].length > 0) {

// 可展开

if (!currentItem.$active) {

const nextIndex = levelIndex + 1;

if (treeDataListClone[nextIndex]) {

treeDataListClone.splice(nextIndex);

}

} else {

// 不可展开

const nextIndex = levelIndex + 1;

if (treeDataListClone[nextIndex]) {

treeDataListClone.splice(nextIndex);

}

if (currentItem[childrenTag] && currentItem[childrenTag].length > 0) {

this.setAllDataTreeChecked(currentItem[childrenTag], checked);

} else {

currentItem.$checked = checked;

}

this.setCheckBoxIndeteriminate(treeDataListClone[0]);

this.treeDataList = treeDataListClone;

this.updatePostData();

// 单个item点击事件

handleCascaderItemClick(item, index, levelIndex) {

const treeDataListClone = cloneDeep(this.treeDataList);

const childrenTag = this.selectOptionsConfig.children;

const valueTag = this.selectOptionsConfig.value;

const currentItemList = [];

this.findKeysItem(treeDataListClone[0], item[valueTag], currentItemList);

let currentItem = {};

if (currentItemList.length > 0) {

currentItem = currentItemList[0];

}

const parentItemsList = [];

this.findAllParentItems(

currentItem[valueTag],

treeDataListClone[0],

parentItemsList

);

parentItemsList.push(currentItem);

this.clearAllDataActive(treeDataListClone[0]);

parentItemsList.forEach((activeItem) => {

if (activeItem[childrenTag] && activeItem[childrenTag].length > 0) {

activeItem.$active = true;

}

});

if (currentItem[childrenTag] && currentItem[childrenTag].length > 0) {

const nextIndex = levelIndex + 1;

if (treeDataListClone[nextIndex]) {

treeDataListClone.splice(nextIndex);

treeDataListClone[nextIndex] = currentItem[childrenTag];

} else {

treeDataListClone.push(currentItem[childrenTag]);

}

this.addHideSelectedList(currentItem[childrenTag]);

} else {

const nextIndex = levelIndex + 1;

if (treeDataListClone[nextIndex]) {

treeDataListClone.splice(nextIndex);

}

currentItem.$checked = !currentItem.$checked;

}

this.setCheckBoxIndeteriminate(treeDataListClone[0]);

this.treeDataList = treeDataListClone;

this.updatePostData();

handleFocus() {

this.isOpen = true;

this.isClickOutSide = false;

updatePostData() {

const that = this;

const childrenTag = that.selectOptionsConfig.children;

const valueTag = that.selectOptionsConfig.value;

const selectedValueArr = [];

_getAllItemChecked(that.treeDataList[0]);

that.$emit("change", selectedValueArr);

function _getAllItemChecked(treeDataList) {

let parentItem;

treeDataList.forEach((item) => {

if (item[childrenTag] && item[childrenTag].length > 0) {

parentItem = item;

const currentCheckedAll = [];

const currentCheckedAllItems = [];

_getSubChecked(parentItem[childrenTag], currentCheckedAll);

that.getSubCheckedItems(

parentItem[childrenTag],

currentCheckedAllItems,

childrenTag

);

// _getSubCheckedItems(

// parentItem[childrenTag],

// currentCheckedAllItems

// );

if (currentCheckedAll.every((checkItem) => checkItem === true)) {

if (parentItem[valueTag]) {

selectedValueArr.push(parentItem[valueTag]);

}

} else if (

currentCheckedAll.some((checkItem) => checkItem === true)

) {

currentCheckedAllItems.forEach((selectedItem) => {

if (selectedItem[valueTag]) {

selectedValueArr.push(selectedItem[valueTag]);

}

});

}

} else {

if (item.$checked) {

selectedValueArr.push(item.code);

}

});

}

function _getSubChecked(itemList, arr) {

itemList.forEach((item) => {

arr.push(!!item.$checked);

if (item[childrenTag] && item[childrenTag].length > 0) {

_getSubChecked(item[childrenTag], arr);

}

});

}

// function _getSubCheckedItems(itemList, arr) {

// itemList.forEach((item) => {

// if (item.$checked) {

// arr.push(item);

// } else {

// if (item[childrenTag] && item[childrenTag].length > 0) {

// _getSubCheckedItems(item[childrenTag], arr);

// }

// });

// }

getSubCheckedItems(itemList, arr, childrenTag) {

itemList.forEach((item) => {

if (item.$checked) {

arr.push(item);

} else {

if (item[childrenTag] && item[childrenTag].length > 0) {

this.getSubCheckedItems(item[childrenTag], arr, childrenTag);

}

});

// 点击组件外部区域

handleDropDownOutSide() {

this.isOpen = false;

this.isClickOutSide = true;

// 设置当前的选中框的全选等状态

setCheckBoxIndeteriminate(treeDataList) {

const that = this;

const childrenTag = that.selectOptionsConfig.children;

_getAllItemChecked(treeDataList);

const checkedAllArr = [];

that.getAllItemCheckedAll(treeDataList, checkedAllArr, childrenTag);

// _getAllItemCheckedAll(treeDataList, checkedAllArr);

if (checkedAllArr.every((item) => item === true)) {

that.isCheckAll = true;

that.isIndeterminateAll = false;

} else if (checkedAllArr.some((item) => item === true)) {

that.isCheckAll = false;

that.isIndeterminateAll = true;

} else if (checkedAllArr.every((item) => item === false)) {

that.isCheckAll = false;

that.isIndeterminateAll = false;

}

// function _getAllItemCheckedAll(itemList, arr) {

// itemList.forEach((item) => {

// arr.push(!!item.$checked);

// if (item[childrenTag] && item[childrenTag].length > 0) {

// _getAllItemCheckedAll(item[childrenTag], arr);

// }

// });

// }

function _getAllItemChecked(treeDataList) {

let parentItem;

treeDataList.forEach((item) => {

if (item[childrenTag] && item[childrenTag].length > 0) {

parentItem = item;

_getAllItemChecked(item[childrenTag]);

const currentCheckedAll = [];

that.getSubChecked(

parentItem[childrenTag],

currentCheckedAll,

childrenTag

);

// _getSubChecked(parentItem[childrenTag], currentCheckedAll);

if (currentCheckedAll.every((checkItem) => checkItem === true)) {

parentItem.$checked = true;

parentItem.$indeterminate = false;

} else if (

currentCheckedAll.some((checkItem) => checkItem === true)

) {

parentItem.$checked = false;

parentItem.$indeterminate = true;

} else if (

currentCheckedAll.every((checkItem) => checkItem === false)

) {

parentItem.$checked = false;

parentItem.$indeterminate = false;

}

});

}

// function _getSubChecked(itemList, arr) {

// itemList.forEach((item) => {

// arr.push(!!item.$checked);

// if (item[childrenTag] && item[childrenTag].length > 0) {

// _getSubChecked(item[childrenTag], arr);

// }

// });

// }

getAllItemCheckedAll(itemList, arr, childrenTag) {

itemList.forEach((item) => {

arr.push(!!item.$checked);

if (item[childrenTag] && item[childrenTag].length > 0) {

this.getAllItemCheckedAll(item[childrenTag], arr, childrenTag);

}

});

getSubChecked(itemList, arr, childrenTag) {

itemList.forEach((item) => {

arr.push(!!item.$checked);

if (item[childrenTag] && item[childrenTag].length > 0) {

this.getSubChecked(item[childrenTag], arr, childrenTag);

}

});

// 设置所有选中和非选中

setAllDataTreeChecked(treeList, checked) {

const childrenTag = this.selectOptionsConfig.children;

treeList.forEach((item) => {

item.$checked = checked;

if (item[childrenTag] && item[childrenTag].length > 0) {

this.setAllDataTreeChecked(item[childrenTag], checked);

} else {

}

});

// 清空所有的active状态

clearAllDataActive(treeList) {

const childrenTag = this.selectOptionsConfig.children;

treeList.forEach((item) => {

item.$active = false;

if (item[childrenTag] && item[childrenTag].length > 0) {

this.clearAllDataActive(item[childrenTag]);

}

});

findKeysItem(treeDataList, currentKey, currentItem) {

const childrenTag = this.selectOptionsConfig.children;

treeDataList.forEach((item) => {

if (item[this.selectOptionsConfig.value] === currentKey) {

currentItem.push(item);

} else {

if (item[childrenTag] && item[childrenTag].length > 0) {

this.findKeysItem(item[childrenTag], currentKey, currentItem);

}

});

findAllParentItems(

currentKey,

treeDataList,

originTreeDataList,

parentItemsList,

parentItem,

parentItemsHasKey

) {

if (parentItem && parentItemsHasKey) {

parentItemsList.unshift(parentItem);

this.findAllParentItems(

parentItem[this.selectOptionsConfig.value],

treeDataList,

originTreeDataList,

parentItemsList

);

} else {

this.findKeysAndParentItem(

currentKey,

treeDataList,

originTreeDataList,

parentItemsList,

parentItem,

parentItemsHasKey

);

}

findKeysAndParentItem(

currentKey,

treeDataList,

originTreeDataList,

parentItemsList,

parentItem

) {

const childrenTag = this.selectOptionsConfig.children;

treeDataList.forEach((item) => {

if (item[this.selectOptionsConfig.value] === currentKey && parentItem) {

this.findAllParentItems(

parentItem[this.selectOptionsConfig.value],

originTreeDataList,

parentItemsList,

parentItem,

true

);

} else {

if (item[childrenTag] && item[childrenTag].length > 0) {

this.findKeysAndParentItem(

currentKey,

item[childrenTag],

originTreeDataList,

parentItemsList,

item

);

}

});

// 将树形结构数据转换成平面结构

treeListToArrList(treeList) {

const arrList = [];

if (treeList && treeList[0]) {

treeList.forEach((item) => {

arrList.push(item);

});

this.treeToList = arrList;

}

addHideSelectedList(treeList) {

const treeToListClone = Array.from(this.treeToList);

treeList.forEach((item) => {

if (

!treeToListClone.find(

(listItem) =>

listItem[this.selectOptionsConfig.value] ===

item[this.selectOptionsConfig.value]

)

) {

treeToListClone.push(item);

}

});

this.treeToList = treeToListClone;

};

</script>

.gb-ant-select-multiple-cascader {

.ant-select-dropdown-menu-item {

display: none;

}

.cascader-content-item {

.checkbox-text {

padding-left: 8px;

font-size: 12px;

color: #4a4a4a;

cursor: default;

flex: 1;

overflow: hidden;

text-overflow: ellipsis;

white-space: nowrap;

text-align: left;

}

&.cascader-content-item-active {

background-color: rgba(66, 70, 86, 0.05);

.checkbox-text {

color: #1d47aa;

}

.ant-checkbox-wrapper {

.ant-checkbox-indeterminate {

.ant-checkbox-inner {

&:after {

background-color: #1d47aa;

left: 48%;

}

.ant-checkbox-inner {

width: 14px;

height: 14px;

background-color: #fff;

border-color: #7d8292;

&:after {

border-color: #1d47aa;

left: 20%;

}

.ant-select-dropdown--multiple {

min-width: auto !important;

}

&.multiple-cascader-outside {

.ant-select-arrow {

transform: rotate(180deg);

}

.ant-select-arrow {

margin-top: -8px;

transition: transform 0.3s;

}

.ant-select-dropdown-menu-root {

display: none;

}

.cascader-content-right {

.right-wrap {

.ant-checkbox {

top: 0;

}

</style>

.gb-ant-select-multiple-cascader {

position: relative;

.cascader-content-wrap {

height: 100%;

.cascader-content-container {

display: flex;

flex-direction: row;

.cascader-content-list {

list-style: none;

// padding: 0;

margin: 0;

width: 153px;

box-sizing: border-box;

padding: 11px 0;

max-height: 160px;

overflow-y: auto;

border-right: 1px solid rgba(222, 223, 226, 0.3);

.cascader-content-item {

padding: 5px 16px;

margin-top: 5px;

display: flex;

flex-direction: row;

align-items: center;

line-height: 1;

&:hover {

background-color: rgba(66, 70, 86, 0.05);

}

.cascader-not-content {

padding: 10px;

}

</style>

最后编辑于：2024.03.25 22:17:14

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