vue-drag-tree
It's a tree components(Vue2.x) that allow you to drag and drop the node to exchange their data .
Feature
- Double click on an node to turn it into a folder
- Drag and Drop the tree node, even between two different levels
- Customize your node (how to display node. eg: node name and left icon )
- Controls whether a particular node can be dragged and whether the node can be plugged into other nodes
- Append/Remove Node in any level (#TODO)
中文 || Please Star! if it's helpful. Example Project
Preview
Getting Start
Install
npm install vue-drag-tree --S
or
yarn add vue-drag-tree -S
Usage
the following code is come from here
P.S. If you get error about Vue packages version mismatch
// Update the version of Vue and vue-template-compiler to latest is fine.
npm install vue@latest -S
npm install vue-template-compiler@latest -Dmain.js
import Vue from 'vue'
import VueDragTree from 'vue-drag-tree'
import 'vue-drag-tree/dist/vue-drag-tree.min.css'
Vue.use(VueDragTree)test.vue
<template>
<vue-drag-tree :data='data' :allowDrag='allowDrag' :allowDrop='allowDrop' :defaultText='"New Node"' @current-node-clicked='curNodeClicked' @drag="dragHandler" @drag-enter="dragEnterHandler" @drag-leave="dragLeaveHandler" @drag-over="dragOverHandler" @drag-end="dragEndHandler" @drop="dropHandler" v-slot="slotProps">
<!-- customize your node here if don't like the default / 如果你不喜欢默认样式，可以在这里定制你自己的节点 -->
<span :class="[slotProps.isClicked ? 'i-am-clicked' : 'i-am-not-clicked']"></span>
<span class='i-am-node-name'>{{slotProps.nodeName}}</span>
</vue-drag-tree>
</template>
<script>
export default{
data(){
return{
data: [
{
name: 'Node 0-0',
id: 0,
children: [
{
name: 'Node 1-1',
id: 3,
children: [
{
name: 'Node 2-1',
id: 4,
children: []
},
{
name: 'Node 2-2',
id: 10,
children: []
}
]
},
{
name: 'Node 1-2',
id: 13,
children: []
}
]
},
{
name: 'Node 0-1',
id: 14,
children: []
}
]
}
},
methods: {
allowDrag(model, component) {
if (model.name === 'Node 0-1') {
// can't be dragged
return false;
}
// can be dragged
return true;
},
allowDrop(model, component) {
if (model.name === 'Node 2-2') {
// can't be placed
return false;
}
// can be placed
return true;
},
curNodeClicked(model, component) {
// console.log('curNodeClicked', model, component);
},
dragHandler(model, component, e) {
// console.log('dragHandler: ', model, component, e);
},
dragEnterHandler(model, component, e) {
// console.log('dragEnterHandler: ', model, component, e);
},
dragLeaveHandler(model, component, e) {
// console.log('dragLeaveHandler: ', model, component, e);
},
dragOverHandler(model, component, e) {
// console.log('dragOverHandler: ', model, component, e);
},
dragEndHandler(model, component, e) {
// console.log('dragEndHandler: ', model, component, e);
},
dropHandler(model, component, e) {
// console.log('dropHandler: ', model, component, e);
}
}
}
<script>API
Attributes
| Name | Description | Type | Default |
|---|---|---|---|
| data | data of the tree | Array | －－ |
| defaultText | default text of new node | String | "New Node" |
| allowDrag | Judging which node can be dragged | Function | ()=>true |
| allowDrop | Judging which node can be plugged into other nodes | Function | ()=>true |
| disableDBClick | disable append a new child node by double click node | Boolean | false |
Method
| Name | Description | arguments |
|---|---|---|
| current-node-clicked | Tell you which node was clicked | (model,component) model: node data was clicked． component: VNode data for the node was clicked |
| drag | The drag event is fired every few hundred milliseconds as an node is being dragged by the user |
(model,component,e) model: node data was dragged. component: VNode data for the node was dragged; e: drag event |
| drag-enter | The drag-enter event is fired when a dragged node enters a valid drop target |
(model,component,e) model: data of the valid drop target; component: VNode of the valid drop target; e: drag event |
| drag-leave | The drag-leave event is fired when a dragged node leaves a valid drop target |
(model,component,e) model: data of the valid drop target; component: VNode of the valid drop target; e: drag event |
| drag-over | The drag-over event is fired when an node is being dragged over a valid drop target |
(model,component,e) model: data of the valid drop target; component: VNode of the valid drop target; e: drag event |
| drag-end | The drag-end event is fired when a drag operation is being ended |
(model,component,e) model: node data was dragged. component: VNode data for the node was dragged; e: drag event |
| drop | The drop event is fired when an node is dropped on a valid drop target. | (model,component,e) model: data of the valid drop target; component: VNode of the valid drop target; e: drag event |
Slot
<vue-drag-tree ... v-slot="slotProps">
<!-- customize your node here if don't like the default -->
<span :class="[slotProps.isClicked ? 'i-am-clicked' : 'i-am-not-clicked']"></span>
<span class='i-am-node-name'>{{slotProps.nodeName}}</span>
</vue-drag-tree>slotPropshas two attributes：
| attribute name | description | value type |
|---|---|---|
| nodeName | the name of displaying node | String |
| isClicked | if the node is clicked (true means expanded) | Boolean |
License