# vue-tree-list
A vue component for tree structure. Support adding treenode/leafnode, editing node's name and dragging.

![vue-tree-demo.gif](https://raw.githubusercontent.com/ParadeTo/vue-tree-list/master/img/demo.gif)

[Live Demo](http://paradeto.com/vue-tree-list/)

# use
``npm install vue-tree-list``

```javascript
<button @click="addNode">Add Node</button>
<vue-tree-list :model="data" default-tree-node-name="new node" default-leaf-node-name="new leaf"></vue-tree-list>
<button @click="getNewTree">Get new tree</button>
<pre>
  {{newTree}}
</pre>
...
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,
            children: [
              {
                name: 'Node 1-2',
                id: 2,
                isLeaf: true,
                pid: 1
              }
            ]
          },
          {
            name: 'Node 2',
            id: 3,
            pid: 0
          },
          {
            name: 'Node 3',
            id: 4,
            pid: 0
          }
        ])
      }
    },
    methods: {
      addNode: function () {
        var node = new TreeNode('new node', false)
        if (!this.data.children) this.data.children = []
        this.data.addChildren(node)
      },

      getNewTree: function () {
        const vm = this
        function _dfs (oldNode) {
          let newNode = {}

          newNode.name = oldNode.name
          newNode.pid = oldNode.pid
          newNode.isLeaf = oldNode.isLeaf
          newNode.id = oldNode.id

          if (oldNode.children && oldNode.children.length > 0) {
            newNode.children = []
            for (let i = 0, len = oldNode.children.length; i < len; i++) {
              newNode.children.push(_dfs(oldNode.children[i]))
            }
          }
          return newNode
        }

        vm.newTree = _dfs(vm.data)
      }
    }
}
```

# props
default-tree-node-name: Default name for new treenode.

default-leaf-node-name: Default name for new leafnode.

# Forbid dragging
Use `dragDisabled` to forbid dragging:
```javascript
data: new Tree([
  {
    name: 'Node 1',
    id: 1,
    pid: 0,
    dragDisabled: true,
  ...
```