/ Tree

Tree and multi-select component based on Vue.js 2

Tree and multi-select component based on Vue.js 2

vue-tree

tree and multi-select component based on Vue.js 2.0 .

SelectTree API (2018-4-15)

The latest release has the ability to support the dropdown tree, extending the following with the same basic attributes and events (consistent with the Tree API)

Parameters Description Type Optional value Default value
searchable Search Functionality Required Boolean Y true
pleasechoosetext Dropdown box default prompts this article String Y Please choose ...
searchtext Search box default prompts this article String Y Search ...
searchfilter Custom search pull down tree filter function Function Y Node => mode.title.indexOf (This.searchworld) > 1

Effect Chart (no demo here, other effects like Onlinedemo)

selectTree

How to use

Please read the Tree API documentation before using the selectTree

import { VTree, VSelectTree } from 'vue-tree-halower'
Vue.use (VTree)
Vue.use (VSelectTree)
 -------------------
<v-select-tree :data='treeData' v-model="['node-1-2']"/>

Tree API Doc

Node Property

Parameters Description Type Optional values Default value
id when this property is empty, the title property will be used as the key String Y -
title node name String N -
children child nodes Array[object] Y -
async whether to load child nodes asynchronously Boolean Y false
expanded node Expansion Boolean Y false
halfcheck whether the node is half optional (subordinate selected) Boolean Y false
visible is the node visible Boolean Y true
selected whether the node is selected Boolean Y false
checked whether the node check box is selected Boolean Y false
nocheck specifies that a node does not render check box when multiple checkboxes are open Boolean Y false
loading open load effect Boolean Y false
chkDisabled disable the function of a check box for a node Boolean Y false

Tree Property

Parameters Description Type Optional values default value
data tree Data Source Array[object] N -
multiple turn on Check mode Boolean Y false
tpl custom templates JSX Y false
halfcheck turn on semi-select mode Boolean Y select all
scoped quarantine node Selected state Boolean Y false
draggable support drag? Boolean Y false
dragafterexpanded ro expand after dragging Boolean Y true
canDeleteRoot can delete the root node Boolean Y false

method

Method name Description Parameters
getSelectedNodes returns an array of currently selected nodes -
getCheckedNodes returns the array of nodes selected by the current check box -
getNodes the options objects such as {selected:true}, if empty, use {} options
searchNodes filter:function/string (if it is a function, it will eventually return a Boolean type) node

events

Event name Description Parameters
node-click click the node to trigger the event node: Object
node-check click the checkbox to trigger the event node: Object, checked: boolean
node-mouse-over over the node to trigger the event node: Object
async-load-nodes event used to implement asynchronous loading node: Object
drag-node-end drag node end trigger the event {dragNode: Object, targetNode: Object}

How to use

Step1: install plugins

npm install babel-plugin-syntax-jsx babel-plugin-transform-vue-jsx babel-helper-vue-jsx-merge-props babel-preset-env --save-dev

npm install vue-tree-halower  --save

Step2: In your .babelrc

{
  "presets": ["env"],
  "plugins": ["transform-vue-jsx"]
}

Step3: In your main.js

import 'vue-tree-halower/dist/halower-tree.min.css' // you can customize the style of the tree
import VTree from 'vue-tree-halower'

Vue.use(VTree)

Demo

Html

  <v-tree ref='tree' :data='treeData' :multiple='true' :tpl='tpl' :halfcheck='true'/>
     <input type="text" v-model="searchword" />
    <button type="button" @click="search">GO</button>

JS

<template>
 <div>
    <div class="tree-block">
      <input class="tree-search-input" type="text" v-model="searchword" placeholder="search..."/>
      <button class=" tree-search-btn" type="button" @click="search">search</button>
      <v-tree ref='tree1' :canDeleteRoot="true" :data='treeData1' :draggable='true' :tpl='tpl' :halfcheck='true' :multiple="true"/>
    </div>
   <div  class="tree-block"><v-tree ref="tree2" :data='treeData2' :multiple='false' @node-check='nodechekced' @async-load-nodes='asyncLoad2'/></div>
    <div  class="tree-block"> <v-select-tree :data='treeData3' v-model='initSelected' :multiple="true"/></div>
   
 </div>
</template>

<script>
export default {
  name: 'HelloWorld',
  data () {
    return {
      searchword: '',
      initSelected: ['node-1'],
      treeData1: [{
        title: 'node1',
        expanded: true,
        children: [{
          title: 'node 1-1',
          expanded: true,
          children: [{
            title: 'node 1-1-1'
          }, {
            title: 'node 1-1-2'
          }, {
            title: 'node 1-1-3'
          }]
        }, {
          title: 'node 1-2',
          children: [{
            title: "<span style='color: red'>node 1-2-1</span>"
          }, {
            title: "<span style='color: red'>node 1-2-2</span>"
          }]
        }]
      }],
      treeData2: [{
        title: 'node1',
        expanded: false,
        async: true
      }],

      treeData3: [{
        title: 'node1',
        expanded: true,
        children: [{
          title: 'node 1-1',
          expanded: true,
          children: [{
            title: 'node 1-1-1'
          }, {
            title: 'node 1-1-2'
          }, {
            title: 'node 1-1-3'
          }]
        }]
      }]
    }
  },
  methods: {
    nodechekced (node, v) {
      alert('that a node-check envent ...' + node.title + v)
    },
    tpl (node, ctx) {
      let titleClass = node.selected ? 'node-title node-selected' : 'node-title'
      if (node.searched) titleClass += ' node-searched'
      return <span>
        <button class="treebtn1" onClick={() => this.$refs.tree1.addNode(node, {title: 'sync node'})}>+</button>

         <span class={titleClass} domPropsInnerHTML={node.title} onClick={() => {
           this.$refs.tree1.nodeSelected(node)
         }}></span>
      <button class="treebtn2" onClick={() => this.asyncLoad1(node)}>async</button>
      <button class="treebtn3" onClick={() => this.$refs.tree1.delNode(node.parent, node)}>delete</button>
      </span>
    },
    async asyncLoad1 (node) {
      this.$set(node, 'loading', true)
      let pro = new Promise((resolve, reject) => {
        setTimeout(resolve, 2000, ['async node1', 'async node2'])
      })
      this.$refs.tree1.addNodes(node, await pro)
      this.$set(node, 'loading', false)
    },
    async asyncLoad2 (node) {
      this.$set(node, 'loading', true)
      let pro = await new Promise((resolve, reject) => {
        setTimeout(resolve, 2000, [{title: 'test1', async: true}, {title: 'test2', async: true}, {title: 'test3'}])
      })

      pro.forEach((el) => {
        if (!node.hasOwnProperty('children')) {
          this.$set(node, 'children', [])
        }
        node.children.push(el)
      })
      this.$set(node, 'loading', false)
    },
    search () {
      this.$refs.tree1.searchNodes(this.searchword)
    }
  }
}
</script>
<style>
.tree-block{
  float: left;
  width: 33%;
  padding: 10px;
  box-sizing: border-box;
  border: 1px dotted #ccccdd;
  overflow: auto;
  height: 800px;
}
.treebtn1{
  background-color: transparent;
  border: 1px solid #ccc;
  padding: 1px 3px;
  border-radius: 5px;
  margin-right: 5px;
  color: rgb(148, 147, 147);

}
.treebtn2{
   background-color: transparent;
   border: 1px solid #ccc;
   padding: 3px 5px;
   border-radius: 5px;
   margin-left: 5px;
  color: rgb(97, 97, 97);

}
.treebtn3{
 background-color: transparent;
 border: 1px solid #ccc;
 padding: 3px 5px;
 border-radius: 5px;
 margin-left: 5px;
  color: rgb(63, 63, 63);

}
.tree-search-input{
  width: 70%;
  padding: 6px 8px;
  outline: none;
  border-radius: 6px;
  border:1px solid #ccc;
}
.tree-search-btn{
width: 25%;
padding: 6px 8px;
outline: none;
border-radius: 6px;
background-color: rgb(218, 218, 218);
border:1px solid rgb(226, 225, 225);
color: rgb(117, 117, 117);
}
</style>

GitHub