uxal-react-treebeard
v2.1.0
Published
React Tree View Component - This is a fork of react-treebeard made by Alex Curtis
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uxal-react-treebeard
React Tree View Component. Data-Driven, Fast, Efficient and Customisable.
Install
npm install uxal-react-treebeard --save
UXAL description (after initial fork)
This is a fork of the react-treebeard project. I've forked it in order to add a new click event handler which I needed for a custom container decorator. In my scenario I wanted to be able to click on the arrows to expand/collapse the tree and do something else when clicking on the node's text.
The new click handler is called onCustomContainerClick
See the example below of the custom conatiner decorator
decorators.Container = (props) => {
const {
style, decorators, terminal, onClick, node, onCustomContainerClick,
} = props;
return (
<div className={node.active ? `${styles.treeItem} ${styles.itemSelected}` : styles.treeItem}>
{node.children ?
<span
className={styles.treeToggleContainer}
onClick={props.onClick}
>
<decorators.Toggle style={style.toggle} />
</span>
:
<span />
}
<span
className={styles.treeHeaderContainer}
onClick={props.onCustomContainerClick}
>
<decorators.Header
node={node}
style={style.header}
/>
</span>
</div >
);
};
And the initialization is:
<Treebeard
data={this.state.data}
style={treeStyles}
onToggle={this.onToggle}
onCustomContainerClick={this.onNodeSelect}
/>
Example
An online example from the /example
directory can be found here: Here
Quick Start
'use strict';
import React from 'react';
import ReactDOM from 'react-dom';
import {Treebeard} from 'react-treebeard';
const data = {
name: 'root',
toggled: true,
children: [
{
name: 'parent',
children: [
{ name: 'child1' },
{ name: 'child2' }
]
},
{
name: 'loading parent',
loading: true,
children: []
},
{
name: 'parent',
children: [
{
name: 'nested parent',
children: [
{ name: 'nested child 1' },
{ name: 'nested child 2' }
]
}
]
}
]
};
class TreeExample extends React.Component {
constructor(props){
super(props);
this.state = {};
this.onToggle = this.onToggle.bind(this);
}
onToggle(node, toggled){
if(this.state.cursor){this.state.cursor.active = false;}
node.active = true;
if(node.children){ node.toggled = toggled; }
this.setState({ cursor: node });
}
render(){
return (
<Treebeard
data={data}
onToggle={this.onToggle}
/>
);
}
}
const content = document.getElementById('content');
ReactDOM.render(<TreeExample/>, content);
Prop Values
data
PropTypes.oneOfType([PropTypes.object,PropTypes.array]).isRequired
Data that drives the tree view. State-driven effects can be built by manipulating the attributes in this object. Also supports an array for multiple nodes at the root level. An example can be found in example/data.js
onToggle
PropTypes.func
Callback function when a node is toggled / clicked. Passes 2 attributes: the data node and it's toggled boolean state.
style
PropTypes.object
Sets the treeview styling. Defaults to src/themes/default
.
animations
PropTypes.oneOfType([PropTypes.object, PropTypes.bool])
Sets the treeview animations. Set to false
if you want to turn off animations. See velocity-react for more details. Defaults to src/themes/animations
.
decorators
PropTypes.object
Decorates the treeview. Here you can use your own Container, Header, Toggle and Loading components. Defaults to src/decorators
. See example below:
const decorators = {
Loading: (props) => {
return (
<div style={props.style}>
loading...
</div>
);
},
Toggle: (props) => {
return (
<div style={props.style}>
<svg height={props.height} width={props.width}>
// Vector Toggle Here
</svg>
</div>
);
},
Header: (props) => {
return (
<div style={props.style}>
{props.node.name}
</div>
);
},
Container: (props) => {
return (
<div onClick={this.props.onClick}>
// Hide Toggle When Terminal Here
<this.props.decorators.Toggle/>
<this.props.decorators.Header/>
</div>
);
}
};
<Treebeard data={...} decorators={decorators}/>
Data Attributes
{
id: '[optional] string',
name: 'string',
children: '[optional] array',
toggled: '[optional] boolean',
active: '[optional] boolean',
loading: '[optional] boolean',
decorators: '[optional] object',
animations: '[optional] object'
},
id
The component key. If not defined, an auto-generated index is used.
name
The name prop passed into the Header component.
children
The children attached to the node. This value populates the subtree at the specific node. Each child is built from the same basic data structure. Tip: Make this an empty array, if you want to asynchronously load a potential parent.
toggled
Toggled flag. Sets the visibility of a node's children. It also sets the state for the toggle decorator.
active
Active flag. If active, the node will be highlighted. The highlight is derived from the node.activeLink
style object in the theme.
loading
Loading flag. It will populate the treeview with the loading component. Useful when asynchronously pulling the data into the treeview.
decorators / animations
Attach specific decorators / animations to a node. Provides the low level functionality to create visuals on a node-by-node basis. These structures are the same as the top level props, described above.