mirror of https://github.com/ElemeFE/element
commit
2d444d42ab
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@ -12,6 +12,7 @@
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- 为 Notification 和 Message 的不同 type 添加独立的调用方法
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- 为 Message Box 和 Dialog 添加 lockScroll 属性,用于定义是否在弹框出现时将 body 滚动锁定
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- 新增 Input textarea 类型的 rows, autosize 属性
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- 为 Tree 添加 getCheckedNodes 方法和 node-click、check-change 回调
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### 1.0.0-rc.5
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@ -58,16 +58,21 @@
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export default {
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methods: {
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handleCheckChange(data, checked, indeterminate) {
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console.log(data, checked, indeterminate);
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},
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handleNodeClick(data) {
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console.log(data);
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},
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loadNode(node, resolve) {
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console.log(node);
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if (node.level === -1) {
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return resolve([{ name: 'Root1' }, { name: 'Root2' }]);
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return resolve([{ name: 'region1' }, { name: 'region2' }]);
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}
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if (node.level > 4) return resolve([]);
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var hasChild;
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if (node.data.name === 'Root1') {
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if (node.data.name === 'region1') {
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hasChild = true;
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} else if (node.data.name === 'Root2') {
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} else if (node.data.name === 'region2') {
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hasChild = false;
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} else {
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hasChild = Math.random() > 0.5;
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@ -111,7 +116,7 @@
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::: demo
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```html
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<el-tree :data="data" :props="defaultProps"></el-tree>
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<el-tree :data="data" :props="defaultProps" @node-click="handleNodeClick"></el-tree>
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<script>
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export default {
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@ -154,7 +159,14 @@
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::: demo
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```html
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<el-tree :data="regions" :props="props" :load="loadNode" lazy show-checkbox></el-tree>
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<el-tree
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:data="regions"
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:props="props"
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:load="loadNode"
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lazy
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show-checkbox
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@check-change="handleCheckChange">
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</el-tree>
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<script>
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export default {
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@ -173,18 +185,27 @@
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};
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},
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methods: {
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getCheckedNodes() {
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console.log(this.$refs.tree.getCheckedNodes(true));
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handleCheckChange(data, checked, indeterminate) {
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console.log(data, checked, indeterminate);
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},
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handleNodeClick(data) {
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console.log(data);
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},
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loadNode(node, resolve) {
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console.log(node);
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if (node.level === -1) {
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return resolve([{ name: 'Root1' }, { name: 'Root2' }]);
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return resolve([{ name: 'region1' }, { name: 'region2' }]);
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}
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var hasChild = Math.random() > 0.5;
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if (node.level > 4) return resolve([]);
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var hasChild;
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if (node.data.name === 'region1') {
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hasChild = true;
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} else if (node.data.name === 'region2') {
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hasChild = false;
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} else {
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hasChild = Math.random() > 0.5;
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}
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setTimeout(function() {
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var data;
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if (hasChild) {
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@ -213,6 +234,7 @@
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| data | 展示数据 | array | — | — |
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| props | 配置选项,具体看下表 | object | — | — |
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| load | 加载子树数据的方法 | function(node, resolve) | — | — |
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| show-checkbox | 节点是否可被选择 | boolean | — | false |
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### props
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@ -220,3 +242,16 @@
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|---------- |-------------- |---------- |-------------------------------- |-------- |
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| label | 指定节点标签为节点对象的某个属性值 | string | — | — |
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| children | 指定子树为节点对象的某个属性值 | string | — | — |
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### 方法
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`Tree` 拥有如下方法,返回目前被选中的节点数组:
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| 方法名 | 说明 | 参数 |
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|------|--------|------|
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| getCheckedNodes | 若节点可被选择(即 `show-checkbox` 为 `true`),<br>则返回目前被选中的节点所组成的数组 | 接收一个 boolean 类型的参数,若为 `true` 则<br>仅返回被选中的叶子节点,默认值为 `false` |
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### Events
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| 事件名称 | 说明 | 回调参数 |
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|---------- |-------- |---------- |
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| node-click | 节点被点击时的回调 | 传递给 `data` 属性的数组中该节点所对应的对象 |
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| check-change | 节点选中状态发生变化时的回调 | 共三个参数,依次为:传递给 `data` 属性的数组中该节点所对应的对象、<br>节点本身是否被选中、节点的子树中是否有被选中的节点 |
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@ -28,12 +28,10 @@ export default class Tree {
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getCheckedNodes(leafOnly) {
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const checkedNodes = [];
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const walk = function(node) {
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const children = node.children;
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const children = node.root ? node.root.children : node.children;
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children.forEach(function(child) {
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if ((!leafOnly && child.checked) || (leafOnly && !child.hasChild && child.checked)) {
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checkedNodes.push(child.data);
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} else {
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if ((!leafOnly && child.checked) || (leafOnly && child.isLeaf && child.checked)) {
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checkedNodes.push(child.data);
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}
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$tree: null,
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expanded: false,
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childrenRendered: false,
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showCheckbox: false
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showCheckbox: false,
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oldChecked: null,
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oldIndeterminate: null
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};
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},
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watch: {
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'node.indeterminate'(val) {
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this.handleSelectChange(this.node.checked, val);
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},
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'node.checked'(val) {
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this.handleSelectChange(val, this.node.indeterminate);
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}
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},
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methods: {
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handleSelectChange(checked, indeterminate) {
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if (this.oldChecked !== checked && this.oldIndeterminate !== indeterminate) {
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this.$tree.$emit('check-change', this.node.data, checked, indeterminate);
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}
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this.oldChecked = checked;
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this.indeterminate = indeterminate;
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},
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handleExpandIconClick(event) {
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let target = event.target;
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if (target.tagName.toUpperCase() !== 'DIV' &&
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this.childrenRendered = true;
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});
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}
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this.$tree.$emit('node-click', this.node.data);
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},
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handleUserClick() {
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