sl-vue-tree

Customizable draggable tree component for Vue.js

demo

install

npm i sl-vue-tree

Quick start

<div id="app">
  <sl-vue-tree v-model="nodes"/>
</div>

<link rel="stylesheet" href="dist/sl-vue-tree-dark.css">
<script src="dist/sl-vue-tree.js"></script>

<script>

  var nodes = [
    {title: 'Item1', isLeaf: true},
    {title: 'Item2', isLeaf: true, data: { visible: false }},
    {title: 'Folder1'},
    {
      title: 'Folder2', isExpanded: true, children: [
        {title: 'Item3', isLeaf: true},
        {title: 'Item4', isLeaf: true}
      ]
    }
  ];

  new Vue({
    el: '#app',
    components: { SlVueTree },
    data: function () {
     return {
       nodes: nodes
     }
    }
  });
  
</script>    

The value property is an array of ISlTreeNodeModel nodes:

interface ISlTreeNodeModel<TDataType> {
    title: string;
    isLeaf?: boolean;
    children?: ISlTreeNodeModel<TDataType>[];
    isExpanded?: boolean;
    isSelected?: boolean;
    isDraggable?: boolean;
    isSelectable?: boolean;
    data?: TDataType; // any serializable user data
}

For convenience the component's events return ISlTreeNode objects. Those actually are ISlTreeNodeModel with some computed props:

interface ISlTreeNode<TDataType> extends ISlTreeNodeModel<TDataType> {
    isFirstChild: boolean;
    isLastChild: boolean;
    isVisible: boolean;	// node is visible if all of its parents are expanded
    level: number; // nesting level
    ind: number; // index in the array of siblings 
    path: number[]; // path to node as array of indexes, for example [2, 0, 1] in the example above is path to `Item4` 
    pathStr: string; // serialized path to node
    children: ISlTreeNode<TDataType>[];
}

You can get the list of ISlTreeNode from the computed slVueTree.nodes property

Props

Computed props

interface ICursorPosition<TDataType> {
  node: ISlTreeNode<TDataType>;
  placement: 'before' | 'inside' | 'after';
}  

Events

Methods

Slots

IE 11 support

You must add a babel-polyfill for it to work correctly in IE11
See IE11 example

Examples

Add a folder or item icon via title slot

<sl-vue-tree v-model="nodes">
    <template slot="title" slot-scope="{ node }">

      <span class="item-icon">
        <i class="fa fa-file" v-if="node.isLeaf"></i>
        <i class="fa fa-folder" v-if="!node.isLeaf"></i>
      </span>
    
      {{ node.title }}
      
    </template>
</sl-vue-tree>

Select all nodes

slVueTree.traverse((node, nodeModel, path) => {
    Vue.set(nodeModel, 'isSelected', true);
})

Handle keydown and keyup events via getNextNode and getPrevNode methods

demo

Contributing

see CONTRIBUTING.md

Changelog

v1.8.5

• fix d.ts #77

v1.8.4

• added insert method #39

v1.8.3

• Allow to disable or enable the expand/collapse button #33

v1.8.1

• added IE11 support #17

v1.8.0

• added empty-node slot

v1.7.1

• added multiselectKey property

v1.7.0

• added isSelectable and isDraggable flags

v1.6.0

• added getNextNode and getPrevNode methods #6

v1.5.1

• improve drop on the bottom of tree #5

v1.5.0

• SlVueTree.select method added
• SlVueTree.@nodeclick event fixed