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| <template>
| <el-tree
| class="filter-tree"
| :props="defaultProps"
| :auto-expand-parent="true"
| node-key="id"
| ref="tree"
| :data="data"
| :default-expanded-keys="defaultExpandedKeys"
| :current-node-key="currentNodeKey"
| @node-collapse="nodeCollapse"
| @node-click="nodeClick"
| @node-expand="nodeExpand">
| <span class="span-ellipsis" slot-scope="{ node }">
| <span :title="node.label">{{ node.label }}</span>
| </span>
| </el-tree>
| </template>
|
| <script>
| export default {
| name: 'MyElTree',
| props:{
| data:{
| type: Array,
| default() {
| return [];
| }
| },
| defaultExpandedKeys: {
| type: Array,
| default(){
| return []
| }
| },
| currentNodeKey: {
| type: [String, Number],
| default: ""
| },
| },
| data(){
| return {
| current: '',
| defaultProps: {
| children: 'children',
| label: 'label',
| isLeaf: 'leaf',
| }
| }
| },
| watch: {
| currentNodeKey(n) {
| this.$nextTick(()=>{
| this.current = n;
| this.$refs.tree.setCurrentKey(n);
| });
| },
| filterText(val) {
| this.$refs.tree.filter(val);
| }
| },
| methods: {
| nodeClick(data, node) {
| node.isCurrent = node.isLeaf;
| if(node.isLeaf && this.current != node.key) {
| this.current = node.key;
| this.$emit('leaf-click', data, node);
| }else {
| this.$emit('node-click', data, node);
| }
| this.$refs.tree.setCurrentKey(this.current);
| },
| nodeExpand(data, node) {
| node.isCurrent = node.isLeaf;
| if(!(node.isLeaf && this.current != node.key)) {
| this.$emit('node-click', data, node);
| }
| },
| nodeCollapse(data, node) {
| this.loopClose(node.childNodes);
| },
| loopClose(childNodes) {
| if(!childNodes || childNodes.length === 0) {
| return;
| }
| childNodes.map(item=>{
| item.expanded = false;
| this.loopClose(item.childNodes);
| });
| }
| },
| mounted(){
| setTimeout(()=>{
| if(this.$refs.tree) {
| this.$refs.tree.setCurrentKey(this.currentNodeKey);
| this.current = this.currentNodeKey;
| }
|
| }, 500);
| }
| }
| </script>
|
| <style scoped>
| .filter-tree {
| -webkit-user-select: none;
| -moz-user-select: none;
| -ms-user-select: none;
| user-select: none;
| }
| </style>
|
|
