vue-tree-list
A vue component for tree structure. Support adding treenode/leafnode, editing node's name and dragging.
install
Install the plugin then you can use the component globally.
import Vue from 'vue'
import VueTreeList from 'vue-tree-list'
Vue.use(VueTreeList)Or just register locally like the example below.
use
npm install vue-tree-list
<template>
<div>
<button @click="addNode">Add Node</button>
<vue-tree-list
@click="onClick"
@change-name="onChangeName"
@delete-node="onDel"
@add-node="onAddNode"
:model="data"
default-tree-node-name="new node"
default-leaf-node-name="new leaf"
v-bind:default-expanded="false"
>
<template v-slot:leafNameDisplay="slotProps">
<span>
{{ slotProps.model.name }} <span class="muted">#{{ slotProps.model.id }}</span>
</span>
</template>
<span class="icon" slot="addTreeNodeIcon">📂</span>
<span class="icon" slot="addLeafNodeIcon">＋</span>
<span class="icon" slot="editNodeIcon">📃</span>
<span class="icon" slot="delNodeIcon">✂️</span>
<span class="icon" slot="leafNodeIcon">🍃</span>
<span class="icon" slot="treeNodeIcon">🌲</span>
</vue-tree-list>
<button @click="getNewTree">Get new tree</button>
<pre>
{{newTree}}
</pre>
</div>
</template>
<script>
import { VueTreeList, Tree, TreeNode } from 'vue-tree-list'
export default {
components: {
VueTreeList
},
data() {
return {
newTree: {},
data: new Tree([
{
name: 'Node 1',
id: 1,
pid: 0,
dragDisabled: true,
addTreeNodeDisabled: true,
addLeafNodeDisabled: true,
editNodeDisabled: true,
delNodeDisabled: true,
children: [
{
name: 'Node 1-2',
id: 2,
isLeaf: true,
pid: 1
}
]
},
{
name: 'Node 2',
id: 3,
pid: 0,
disabled: true
},
{
name: 'Node 3',
id: 4,
pid: 0
}
])
}
},
methods: {
onDel(node) {
console.log(node)
node.remove()
},
onChangeName(params) {
console.log(params)
},
onAddNode(params) {
console.log(params)
},
onClick(params) {
console.log(params)
},
addNode() {
var node = new TreeNode({ name: 'new node', isLeaf: false })
if (!this.data.children) this.data.children = []
this.data.addChildren(node)
},
getNewTree() {
var vm = this
function _dfs(oldNode) {
var newNode = {}
for (var k in oldNode) {
if (k !== 'children' && k !== 'parent') {
newNode[k] = oldNode[k]
}
}
if (oldNode.children && oldNode.children.length > 0) {
newNode.children = []
for (var i = 0, len = oldNode.children.length; i < len; i++) {
newNode.children.push(_dfs(oldNode.children[i]))
}
}
return newNode
}
vm.newTree = _dfs(vm.data)
}
}
}
</script>
<style lang="less" rel="stylesheet/less">
.vtl {
.vtl-drag-disabled {
background-color: #d0cfcf;
&:hover {
background-color: #d0cfcf;
}
}
.vtl-disabled {
background-color: #d0cfcf;
}
}
</style>
<style lang="less" rel="stylesheet/less" scoped>
.icon {
&:hover {
cursor: pointer;
}
}
.muted {
color: gray;
font-size: 80%;
}
</style>props
props of vue-tree-list
| name | type | default | description |
|---|---|---|---|
| model | TreeNode | - | You can use const head = new Tree([]) to generate a tree with the head of TreeNode type |
| default-tree-node-name | string | New node node | Default name for new treenode |
| default-leaf-node-name | string | New leaf node | Default name for new leafnode |
| default-expanded | boolean | true | Tree is expanded or not |
props of TreeNode
attributes
| name | type | default | description |
|---|---|---|---|
| id | string, number | current timestamp | The node's id |
| isLeaf | boolean | false | The node is leaf or not |
| dragDisabled | boolean | false | Forbid dragging tree node |
| addTreeNodeDisabled | boolean | false | Show addTreeNode button or not |
| addLeafNodeDisabled | boolean | false | Show addLeafNode button or not |
| editNodeDisabled | boolean | false | Show editNode button or not |
| delNodeDisabled | boolean | false | Show delNode button or not |
| children | array | null | The children of node |
methods
| name | params | description |
|---|---|---|
| changeName | name | Change node's name |
| addChildren | children: object, array | Add children to node |
| remove | - | Remove node from the tree |
| moveInto | target: TreeNode | Move node into another node |
| insertBefore | target: TreeNode | Move node before another node |
| insertAfter | target: TreeNode | Move node after another node |
events
| name | params | description |
|---|---|---|
| click | TreeNode | Trigger when clicking a tree node. You can call toggle of TreeNode to toggle the folder node. |
| change-name | {'id', 'oldName', 'newName'} | Trigger after changing a node's name |
| delete-node | TreeNode | Trigger when clicking delNode button. You can call remove of TreeNode to remove the node. |
| add-node | TreeNode | Trigger after adding a new node |
| drop | {node, src, target} | Trigger after dropping a node into another. node: the draggable node, src: the draggable node's parent, target: the node that draggable node will drop into |
| drop-before | {node, src, target} | Trigger after dropping a node before another. node: the draggable node, src: the draggable node's parent, target: the node that draggable node will drop before |
| drop-after | {node, src, target} | Trigger after dropping a node after another. node: the draggable node, src: the draggable node's parent, target: the node that draggable node will drop after |
customize operation icons
The component has default icons for addTreeNodeIcon, addLeafNodeIcon, editNodeIcon, delNodeIcon, leafNodeIcon, treeNodeIcon button, but you can also customize them and can access model, root, expanded as below:
<template v-slot:leafNameDisplay="slotProps">
<span>{{ slotProps.model.name }} #{{ slotProps.model.id }}</span>
</template>
<template v-slot:addTreeNodeIcon="slotProps">
<span class="icon">📂</span>
</template>
<template v-slot:addLeafNodeIcon="slotProps">
<span class="icon">＋</span>
</template>
<template v-slot:editNodeIcon="slotProps">
<span class="icon">📃</span>
</template>
<template v-slot:delNodeIcon="slotProps">
<span class="icon">✂️</span>
</template>
<template v-slot:leafNodeIcon="slotProps">
<span class="icon">🍃</span>
</template>
<template v-slot:treeNodeIcon="slotProps">
<span class="icon">
{{ (slotProps.model.children && slotProps.model.children.length > 0 && !slotProps.expanded) ?
'🌲' : '' }}</span
>
</template>