[tree]:add node-open and node-close event

examples/docs/en-US/tree.md

@@ -74,7 +74,7 @@
         } else {
           hasChild = Math.random() > 0.5;
         }
-
+    
         setTimeout(function() {
           let data;
           if (hasChild) {
@@ -86,12 +86,12 @@
           } else {
             data = [];
           }
-
+    
           resolve(data);
         }, 500);
       }
     },
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+    
     data() {
       return {
         data,
@@ -308,47 +308,49 @@ Only one node among the same level can be expanded at one time.
 :::
 
 ### Attributes
-| Attribute      | Description          | Type      | Accepted Values       | Default  |
-|---------- |-------------- |---------- |--------------------------------  |-------- |
-| data     | tree data | array | — | — |
-| empty-text | text displayed when data is void | string | — | — |
-| node-key | unique identity key name for nodes, its value should be unique across the whole tree | string | — | — |
-| props | configuration options, see the following table | object | — | — |
-| load | method for loading subtree data | function(node, resolve) | — | — |
-| render-content | render function for tree node | Function(h, { node } | — | — |
-| highlight-current | whether current node is highlighted | boolean | — | false |
-| current-node-key | key of current node, a set only prop | string, number | — | — |
-| default-expand-all | whether to expand all nodes by default | boolean | — | false |
-| expand-on-click-node | whether to expand or collapse node when clicking on the node, if false, then expand or collapse node only when clicking on the arrow icon.  | — | true |
-| auto-expand-parent | whether to expand father node when a child node is expanded | boolean | — | true |
-| default-expanded-keys | array of keys of initially expanded nodes | array | — | — |
-| show-checkbox | whether node is selectable | boolean | — | false |
-| check-strictly | whether checked state of a node not affects its father and child nodes when `show-checkbox` is `true` | boolean | — | false |
-| default-checked-keys | array of keys of initially checked nodes | array | — | — |
-| filter-node-method | this function will be executed on each node when use filter method. if return `false`, tree node will be hidden. | Function(value, data, node) | — | — |
-| accordion | whether only one node among the same level can be expanded at one time | boolean | — | false |
+| Attribute             | Description                              | Type                        | Accepted Values | Default |
+| --------------------- | ---------------------------------------- | --------------------------- | --------------- | ------- |
+| data                  | tree data                                | array                       | —               | —       |
+| empty-text            | text displayed when data is void         | string                      | —               | —       |
+| node-key              | unique identity key name for nodes, its value should be unique across the whole tree | string                      | —               | —       |
+| props                 | configuration options, see the following table | object                      | —               | —       |
+| load                  | method for loading subtree data          | function(node, resolve)     | —               | —       |
+| render-content        | render function for tree node            | Function(h, { node }        | —               | —       |
+| highlight-current     | whether current node is highlighted      | boolean                     | —               | false   |
+| current-node-key      | key of current node, a set only prop     | string, number              | —               | —       |
+| default-expand-all    | whether to expand all nodes by default   | boolean                     | —               | false   |
+| expand-on-click-node  | whether to expand or collapse node when clicking on the node, if false, then expand or collapse node only when clicking on the arrow icon. | —                           | true            |         |
+| auto-expand-parent    | whether to expand father node when a child node is expanded | boolean                     | —               | true    |
+| default-expanded-keys | array of keys of initially expanded nodes | array                       | —               | —       |
+| show-checkbox         | whether node is selectable               | boolean                     | —               | false   |
+| check-strictly        | whether checked state of a node not affects its father and child nodes when `show-checkbox` is `true` | boolean                     | —               | false   |
+| default-checked-keys  | array of keys of initially checked nodes | array                       | —               | —       |
+| filter-node-method    | this function will be executed on each node when use filter method. if return `false`, tree node will be hidden. | Function(value, data, node) | —               | —       |
+| accordion             | whether only one node among the same level can be expanded at one time | boolean                     | —               | false   |
 
 ### props
-| Attribute      | Description          | Type      | Accepted Values       | Default  |
-|---------- |-------------- |---------- |--------------------------------  |-------- |
-| label | specify which key of node object is used as the node's label | string | — | — |
-| children | specify which key of node object is used as the node's subtree | string | — | — |
+| Attribute | Description                              | Type   | Accepted Values | Default |
+| --------- | ---------------------------------------- | ------ | --------------- | ------- |
+| label     | specify which key of node object is used as the node's label | string | —               | —       |
+| children  | specify which key of node object is used as the node's subtree | string | —               | —       |
 
 ### Method
 `Tree` has the following method, which returns the currently selected array of nodes.
-| Method      | Description    | Parameters     |
-|---------- |-------- |---------- |
-| filter | filter all tree nodes, filtered nodes will be hidden | Accept a parameter which will be used as first parameter for filter-node-method |
-| getCheckedNodes | If the node can be selected (`show-checkbox` is `true`), it returns the currently selected array of nodes | Accept a boolean type parameter whose default value is `false`. If the parameter is `true`, it only returns the currently selected array of sub-nodes.|
-| setCheckedNodes | set certain nodes to be checked, only works when `node-key` is assigned | an array of nodes to be checked |
-| getCheckedKeys | If the node can be selected (`show-checkbox` is `true`), it returns the currently selected array of node's keys | (leafOnly) Accept a boolean type parameter whose default value is `true`. If the parameter is `true`, it only returns the currently selected array of sub-nodes.|
-| setCheckedKeys | set certain nodes to be checked, only works when `node-key` is assigned | (keys, leafOnly) Accept two parameters: 1. an array of node's keys to be checked 2. a boolean type parameter whose default value is `true`. If the parameter is `true`, it only returns the currently selected array of sub-nodes. |
-| setChecked | set node to be checked or not, only works when `node-key` is assigned | (key/data, checked, deep) Accept three parameters: 1. node's key or data to be checked 2. a boolean typed parameter indicating checked or not. 3. a boolean typed parameter indicating deep or not. |
+| Method          | Description                              | Parameters                               |
+| --------------- | ---------------------------------------- | ---------------------------------------- |
+| filter          | filter all tree nodes, filtered nodes will be hidden | Accept a parameter which will be used as first parameter for filter-node-method |
+| getCheckedNodes | If the node can be selected (`show-checkbox` is `true`), it returns the currently selected array of nodes | Accept a boolean type parameter whose default value is `false`. If the parameter is `true`, it only returns the currently selected array of sub-nodes. |
+| setCheckedNodes | set certain nodes to be checked, only works when `node-key` is assigned | an array of nodes to be checked          |
+| getCheckedKeys  | If the node can be selected (`show-checkbox` is `true`), it returns the currently selected array of node's keys | (leafOnly) Accept a boolean type parameter whose default value is `true`. If the parameter is `true`, it only returns the currently selected array of sub-nodes. |
+| setCheckedKeys  | set certain nodes to be checked, only works when `node-key` is assigned | (keys, leafOnly) Accept two parameters: 1. an array of node's keys to be checked 2. a boolean type parameter whose default value is `true`. If the parameter is `true`, it only returns the currently selected array of sub-nodes. |
+| setChecked      | set node to be checked or not, only works when `node-key` is assigned | (key/data, checked, deep) Accept three parameters: 1. node's key or data to be checked 2. a boolean typed parameter indicating checked or not. 3. a boolean typed parameter indicating deep or not. |
 
 ### Events
-| Event Name | Description | Parameters |
-|---------- |-------- |---------- |
-| node-click | triggers when a node is clicked | three parameters: node object corresponding to the node clicked, `node` property of TreeNode, TreeNode itself |
-| check-change | triggers when the selected state of the node changes | three parameters: node object corresponding to the node whose selected state is changed, whether the node is selected, whether node's subtree has selected nodes |
-| current-change | triggers when current node changes | two parameters: node object corresponding to the current node, `node` property of TreeNode |
+| Event Name     | Description                              | Parameters                               |
+| -------------- | ---------------------------------------- | ---------------------------------------- |
+| node-click     | triggers when a node is clicked          | three parameters: node object corresponding to the node clicked, `node` property of TreeNode, TreeNode itself |
+| check-change   | triggers when the selected state of the node changes | three parameters: node object corresponding to the node whose selected state is changed, whether the node is selected, whether node's subtree has selected nodes |
+| current-change | triggers when current node changes       | two parameters: node object corresponding to the current node, `node` property of TreeNode |
+| node-open      | triggers when current node open          | three parameters: node object corresponding to the node opened, `node` property of TreeNode, TreeNode itself |
+| node-close     | triggers when current node close         | three parameters: node object corresponding to the node closed, `node` property of TreeNode, TreeNode itself |
 

examples/docs/zh-CN/tree.md

@@ -86,7 +86,7 @@
         } else {
           hasChild = Math.random() > 0.5;
         }
-
+    
         setTimeout(function() {
           var data;
           if (hasChild) {
@@ -98,12 +98,12 @@
           } else {
             data = [];
           }
-
+    
           resolve(data);
         }, 500);
       }
     },
-
+    
     data() {
       return {
         data,
@@ -320,46 +320,48 @@
 :::
 
 ### Attributes
-| 参数      | 说明          | 类型      | 可选值                           | 默认值  |
-|---------- |-------------- |---------- |--------------------------------  |-------- |
-| data     | 展示数据 | array | — | — |
-| empty-text | 内容为空的时候展示的文本 | String | — | — |
-| node-key | 每个树节点用来作为唯一标识的属性，整颗树应该是唯一的 | String | — | — |
-| props | 配置选项，具体看下表 | object | — | — |
-| load | 加载子树数据的方法 | function(node, resolve) | — | — |
-| render-content | 树节点的内容区的渲染 Function | Function(h, { node } | — | — |
-| highlight-current | 是否高亮当前选中节点，默认值是 false。| boolean | — | false |
-| current-node-key | 当前选中节点的 key，只写属性 | string, number | — | — |
-| default-expand-all | 是否默认展开所有节点 | boolean | — | false |
-| expand-on-click-node | 是否在点击节点的时候展开或者收缩节点， 默认值为 true，如果为 false，则只有点箭头图标的时候才会展开或者收缩节点。 | boolean | — | true |
-| auto-expand-parent | 展开子节点的时候是否自动展开父节点 | boolean | — | true |
-| default-expanded-keys | 默认展开的节点的 key 的数组 | array | — | — |
-| show-checkbox | 节点是否可被选择 | boolean | — | false |
-| check-strictly | 在显示复选框的情况下，是否严格的遵循父子不互相关联的做法，默认为 false | boolean | — | false |
-| default-checked-keys | 默认勾选的节点的 key 的数组 | array | — | — |
-| filter-node-method | 对树节点进行筛选时执行的方法，返回 true 表示这个节点可以显示，返回 false 则表示这个节点会被隐藏 | Function(value, data, node) | — | — |
-| accordion | 是否每次只打开一个同级树节点展开 | boolean | — | false |
+| 参数                    | 说明                                       | 类型                          | 可选值  | 默认值   |
+| --------------------- | ---------------------------------------- | --------------------------- | ---- | ----- |
+| data                  | 展示数据                                     | array                       | —    | —     |
+| empty-text            | 内容为空的时候展示的文本                             | String                      | —    | —     |
+| node-key              | 每个树节点用来作为唯一标识的属性，整颗树应该是唯一的               | String                      | —    | —     |
+| props                 | 配置选项，具体看下表                               | object                      | —    | —     |
+| load                  | 加载子树数据的方法                                | function(node, resolve)     | —    | —     |
+| render-content        | 树节点的内容区的渲染 Function                      | Function(h, { node }        | —    | —     |
+| highlight-current     | 是否高亮当前选中节点，默认值是 false。                   | boolean                     | —    | false |
+| current-node-key      | 当前选中节点的 key，只写属性                         | string, number              | —    | —     |
+| default-expand-all    | 是否默认展开所有节点                               | boolean                     | —    | false |
+| expand-on-click-node  | 是否在点击节点的时候展开或者收缩节点， 默认值为 true，如果为 false，则只有点箭头图标的时候才会展开或者收缩节点。 | boolean                     | —    | true  |
+| auto-expand-parent    | 展开子节点的时候是否自动展开父节点                        | boolean                     | —    | true  |
+| default-expanded-keys | 默认展开的节点的 key 的数组                         | array                       | —    | —     |
+| show-checkbox         | 节点是否可被选择                                 | boolean                     | —    | false |
+| check-strictly        | 在显示复选框的情况下，是否严格的遵循父子不互相关联的做法，默认为 false   | boolean                     | —    | false |
+| default-checked-keys  | 默认勾选的节点的 key 的数组                         | array                       | —    | —     |
+| filter-node-method    | 对树节点进行筛选时执行的方法，返回 true 表示这个节点可以显示，返回 false 则表示这个节点会被隐藏 | Function(value, data, node) | —    | —     |
+| accordion             | 是否每次只打开一个同级树节点展开                         | boolean                     | —    | false |
 
 ### props
-| 参数      | 说明          | 类型      | 可选值                           | 默认值  |
-|---------- |-------------- |---------- |--------------------------------  |-------- |
-| label | 指定节点标签为节点对象的某个属性值 | string | — | — |
-| children | 指定子树为节点对象的某个属性值 | string | — | — |
+| 参数       | 说明                | 类型     | 可选值  | 默认值  |
+| -------- | ----------------- | ------ | ---- | ---- |
+| label    | 指定节点标签为节点对象的某个属性值 | string | —    | —    |
+| children | 指定子树为节点对象的某个属性值   | string | —    | —    |
 
 ### 方法
 `Tree` 拥有如下方法，返回目前被选中的节点数组：
-| 方法名 | 说明 | 参数 |
-|------|--------|------|
-| filter | 对树节点进行筛选操作 | 接收一个任意类型的参数，该参数会在 filter-node-method 中作为第一个参数 |
+| 方法名             | 说明                                       | 参数                                       |
+| --------------- | ---------------------------------------- | ---------------------------------------- |
+| filter          | 对树节点进行筛选操作                               | 接收一个任意类型的参数，该参数会在 filter-node-method 中作为第一个参数 |
 | getCheckedNodes | 若节点可被选择（即 `show-checkbox` 为 `true`），则返回目前被选中的节点所组成的数组 | (leafOnly) 接收一个 boolean 类型的参数，若为 `true` 则仅返回被选中的叶子节点，默认值为 `false` |
-| setCheckedNodes | 设置目前勾选的节点，使用此方法必须设置 node-key 属性 | (nodes) 接收勾选节点数据的数组 |
-| getCheckedKeys | 若节点可被选择（即 `show-checkbox` 为 `true`），则返回目前被选中的节点所组成的数组 | (leafOnly) 接收一个 boolean 类型的参数，若为 `true` 则仅返回被选中的叶子节点的 keys，默认值为 `true` |
-| setCheckedKeys | 通过 keys 设置目前勾选的节点，使用此方法必须设置 node-key 属性 | (keys, leafOnly) 接收两个参数，1. 勾选节点的 key 的数组 2. boolean 类型的参数，若为 `true` 则仅设置叶子节点的选中状态，默认值为 `true` |
-| setChecked | 通过 key / data 设置某个节点的勾选状态，使用此方法必须设置 node-key 属性 | (key/data, checked, deep) 接收三个参数，1. 勾选节点的 key 或者 data 2. boolean 类型，节点是否选中  3. boolean 类型，是否设置子节点 ，默认为 false |
+| setCheckedNodes | 设置目前勾选的节点，使用此方法必须设置 node-key 属性          | (nodes) 接收勾选节点数据的数组                      |
+| getCheckedKeys  | 若节点可被选择（即 `show-checkbox` 为 `true`），则返回目前被选中的节点所组成的数组 | (leafOnly) 接收一个 boolean 类型的参数，若为 `true` 则仅返回被选中的叶子节点的 keys，默认值为 `true` |
+| setCheckedKeys  | 通过 keys 设置目前勾选的节点，使用此方法必须设置 node-key 属性  | (keys, leafOnly) 接收两个参数，1. 勾选节点的 key 的数组 2. boolean 类型的参数，若为 `true` 则仅设置叶子节点的选中状态，默认值为 `true` |
+| setChecked      | 通过 key / data 设置某个节点的勾选状态，使用此方法必须设置 node-key 属性 | (key/data, checked, deep) 接收三个参数，1. 勾选节点的 key 或者 data 2. boolean 类型，节点是否选中  3. boolean 类型，是否设置子节点 ，默认为 false |
 
 ### Events
-| 事件名称      | 说明    | 回调参数      |
-|---------- |-------- |---------- |
-| node-click  | 节点被点击时的回调 | 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、节点对应的 Node、节点组件本身。 |
-| 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、节点本身是否被选中、节点的子树中是否有被选中的节点 |
-| current-change | 当前选中节点变化时触发的事件 | 共两个参数，依次为：当前节点的数据，当前节点的 Node 对象 |
+| 事件名称           | 说明             | 回调参数                                     |
+| -------------- | -------------- | ---------------------------------------- |
+| node-click     | 节点被点击时的回调      | 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、节点对应的 Node、节点组件本身。 |
+| 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、节点本身是否被选中、节点的子树中是否有被选中的节点 |
+| current-change | 当前选中节点变化时触发的事件 | 共两个参数，依次为：当前节点的数据，当前节点的 Node 对象          |
+| node-open      | 节点被展开时触发的事件    | 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、节点对应的 Node、节点组件本身。 |
+| node-close     | 节点被关闭时触发的事件    | 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、节点对应的 Node、节点组件本身。 |