@marcoparrone/react-nodes
v1.0.7
Published
React components implementing nodes of a tree structure where the nodes are either folders or final nodes.
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react-nodes
React components implementing nodes of a tree structure where the nodes are either folders or final nodes.
Installation
npm install @marcoparrone/react-nodesUsage
The react-nodes module exports two React components: Node and NodesArray.
For an example usage of the Node component, see the NodesArray component implementation inside the src/react-nodes.js file.
The NodesArray component accepts the following properties:
- item: a string containing the name of the localStorage item where the nodes will be saved;
- text: an object containing at least the following properties, which will be used for the tooltips of the buttons:
{
'text_open': 'Open',
'text_add': 'Add',
'text_edit': 'Edit',
'text_move_backward': 'Move Backward',
'text_move_forward': 'Move Forward',
'text_move_upward': 'Move Upward',
'text_move_downward': 'Move Downward'
}- nodes: an array of objects containing the following properties:
- type: the value is a string, it's 'folder' for a node with children elements, or something other for a final node,
- title: the title of the node, it may be a name or a description,
- visible: an integer, if zero then the node is considered as if it was deleted,
- children: this one is optional: it may contain an array of children nodes,
- eventually other properties can be included for application-specific purposes;
- showedit: optional: if 'yes', then the edit button will be visible;
- showmove: optional: if 'yes', then the movement buttons will be visible;
- showadd: optional: if 'yes', then the add button will be visible inside the folder elements;
- addNode: callback function for the 'add' button: it must accept a string parameter containing the position of the object: in this format: N1.N2.N3, for example 2.3.5 means the 6th children of the 4th children of the 3rd element of the "nodes" array of objects;
- openNode: callback function for the 'open' button, it must accept a string parameter containing the position of the object, in the same format used for the addNode callback;
- editNode: callback function for the 'edit' button, it must accept a string parameter containing the position of the object, in the same format used for the addNode callback.
It is important to include the material icons in the HTML page. I usually include them directly in the static HTML page:
<!DOCTYPE html>
<html lang="en">
<head>
...
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
...
</head>
<body>
...
</body>
</html>Example usage
Here is some example code of an app which uses @marcoparrone/react-nodes.
// ...
import NodesArray from '@marcoparrone/react-nodes';
const defaultText = require ('./en.json');
class NodesApp extends React.Component {
constructor(props) {
super(props);
this.bookmarks = [];
this.showedit = 'no';
this.showmove = 'no';
this.showadd = 'yes';
this.i18n = { language: 'en', text: defaultText};
// ...
this.addNode = this.addNode.bind(this);
this.openNode = this.openNode.bind(this);
this.editNode = this.editNode.bind(this);
// ...
this.NodesArrayRef = React.createRef();
// ...
}
// ...
render() {
return (
// ...
<NodesArray key="NodesArray" ref={this.NodesArrayRef} item="bookmarks" text={this.i18n.text}
nodes={this.bookmarks} showedit={this.showedit} showmove={this.showmove} showadd={this.showadd}
addNode={this.addNode} openNode={this.openNode} editNode={this.editNode} />
// ...
);
}
}
// ...