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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| <template> | ||
| <el-select | ||
| ref="treeSelect" | ||
| size="mini" | ||
| :value="valueTitles" | ||
| :clearable="clearable" | ||
| multiple | ||
| collapse-tags | ||
| :placeholder="placeholder" | ||
| @clear="clearHandle" | ||
| @remove-tag="removeTag" | ||
| > | ||
| <el-option | ||
| v-for="item in options" | ||
| :key="item.value" | ||
| :label="item.label" | ||
| :value="item.value"> | ||
| </el-option> | ||
| <el-tree | ||
| class="multiple-tree" | ||
| ref="selectTree" | ||
| node-key="id" | ||
| :data="options" | ||
| :props="props" | ||
| icon-class="-" | ||
| :check-on-click-node="true" | ||
| :expand-on-click-node="false" | ||
| :check-strictly="true" | ||
| :highlight-current="false" | ||
| :default-expand-all="true" | ||
| :default-checked-keys="value" | ||
| show-checkbox | ||
| @check="selectNode" | ||
| > | ||
| </el-tree> | ||
| </el-select> | ||
| </template> | ||
|
|
||
| <script> | ||
| export default { | ||
| name: "MultipleTreeSelect", | ||
| props:{ | ||
| /* 配置项 */ | ||
| props:{ | ||
| type: Object, | ||
| default:()=>{ | ||
| return { | ||
| value:'id', // ID字段名 | ||
| label: 'name', // 显示名称 | ||
| children: 'children' // 子级字段名 | ||
| } | ||
| } | ||
| }, | ||
| /* 选项列表数据(树形结构的对象数组) */ | ||
| options:{ | ||
| type: Array, | ||
| default: ()=>{ return [] } | ||
| }, | ||
| /* 初始值 */ | ||
| value:{ | ||
| type: Array, | ||
| default: ()=>{ return [] } | ||
| }, | ||
| /* 可清空选项 */ | ||
| clearable:{ | ||
| type:Boolean, | ||
| default:()=>{ return true } | ||
| }, | ||
| /* 自动收起 */ | ||
| accordion:{ | ||
| type:Boolean, | ||
| default:()=>{ return false } | ||
| }, | ||
| placeholder:{ | ||
| type:String, | ||
| default:()=>{return "请选择"} | ||
| } | ||
| }, | ||
| data() { | ||
| return { | ||
| valueIds: this.value, // 初始值 | ||
| valueTitles: [], | ||
| data: [], | ||
| } | ||
| }, | ||
| mounted(){ | ||
| this.initHandle() | ||
| }, | ||
| methods: { | ||
| // 初始化值 | ||
| initHandle(){ | ||
| if(this.valueIds){ | ||
| this.$nextTick(() => { | ||
| this.$refs.selectTree.setCheckedKeys(this.valueIds) | ||
| if(this.valueIds.length > 0){ | ||
| this.valueTitles = this.$refs.selectTree.getCheckedNodes().map(node => node.name) | ||
| } else { | ||
| this.valueTitles = [] | ||
| } | ||
| }) | ||
| } | ||
| this.initScroll() | ||
| }, | ||
| // 初始化滚动条 | ||
| initScroll(){ | ||
| this.$nextTick(()=>{ | ||
| let scrollWrap = document.querySelectorAll('.el-scrollbar .el-select-dropdown__wrap')[0] | ||
| let scrollBar = document.querySelectorAll('.el-scrollbar .el-scrollbar__bar') | ||
| scrollWrap.style.cssText = 'margin: 0px; max-height: none; overflow: hidden;' | ||
| scrollBar.forEach(ele => ele.style.width = 0) | ||
| }) | ||
| }, | ||
| selectNode(props, data){ | ||
| this.valueIds = data.checkedKeys | ||
| this.valueTitles = data.checkedNodes.map(node => node.name) | ||
| this.$emit('input', this.valueIds) | ||
| }, | ||
| // 移除选中项 | ||
| removeTag(name) { | ||
| this.valueTitles = this.valueTitles.filter(valueTitle => valueTitle !== name) | ||
| let checkKeys = this.$refs.selectTree.getCheckedKeys(); | ||
| let removeKey = this.$refs.selectTree.getCheckedNodes().filter(node => node.name === name)[0].id | ||
| checkKeys = checkKeys.filter(key => key !== removeKey) | ||
| this.valueIds = checkKeys | ||
| this.$refs.selectTree.setCheckedKeys(checkKeys) | ||
| this.$emit('input', this.valueIds) | ||
| }, | ||
| // 清除选中 | ||
| clearHandle(){ | ||
| this.valueTitles = [] | ||
| this.valueIds = [] | ||
| this.$refs.selectTree.setCheckedKeys([]) | ||
| this.$emit('input', this.valueIds) | ||
| } | ||
| }, | ||
| watch: { | ||
| value(value){ | ||
| this.valueIds = value | ||
| this.initHandle() | ||
| } | ||
| }, | ||
| }; | ||
| </script> | ||
|
|
||
| <style scoped> | ||
| .el-scrollbar .el-scrollbar__view .el-select-dropdown__item{ | ||
| height: auto; | ||
| max-height: 274px; | ||
| padding: 0; | ||
| overflow: hidden; | ||
| overflow-y: auto; | ||
| } | ||
| .el-select-dropdown__item.selected{ | ||
| font-weight: normal; | ||
| } | ||
| </style> |
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