React.js Component for jscolor.com

JsColor.js

import React, { Component } from 'react';
import '../plugins/jscolor/jscolor';

/**
 * JsColor
 */
class JsColor extends Component {
	/**
	 * JsColor Constructor
	 * @param {*} props
	 */
	constructor(props) {
		super(props);

		// Initial state
		this.state = {
			color: props.value,
		};

		/**
		 * Create references
		 */
		this.colorInput = React.createRef();
		this.colorSwatch = React.createRef();

		// Bind methods
		this.onChange = this.onChange.bind(this);
		this.onFineChange = this.onFineChange.bind(this);
		this.showColorPicker = this.showColorPicker.bind(this);
	}

	/**
	 * Component mounted
	 */
	componentDidMount() {
		// Setup jscolor
		window.jscolor.installByClassName('jscolor-input');

		// Bind events
		this.colorInput.current.addEventListener('onFineChange', this.onFineChange);
		this.colorInput.current.addEventListener('change', this.onChange);
		this.colorInput.current.addEventListener('input', this.onChange);

		// Set background and color
		this.colorSwatch.current.style.background = this.state.color;
		this.colorSwatch.current.style.color = this.state.color;
	}

	/**
	 * Component will unmount
	 */
	componentWillUnmount() {
		this.colorInput.current.removeEventListener('onFineChange', this.onFineChange);
		this.colorInput.current.removeEventListener('change', this.onFineChange);
		this.colorInput.current.removeEventListener('input', this.onFineChange);
	}

	/**
	 * On JsColor value change
	 */
	onChange() {
		// Set state and call parent methods upon success set
		this.setState({ color: this.colorInput.current.jscolor.toHEXString() }, function() {
			this.colorSwatch.current.style.background = this.state.color;
			this.colorSwatch.current.style.color = this.state.color;
			this.props.onChange(this.state.color);
		});
	}

	/**
	 * On FineChange of JsColor
	 * @param {*} e
	 */
	onFineChange(e) {
		// Set state and call parent methods upon success set
		this.setState({ color: `#${e.detail.jscolor}` }, function() {
			this.colorSwatch.current.style.background = this.state.color;
			this.colorSwatch.current.style.color = this.state.color;
			this.props.onChange(this.state.color);
		});
	}

	/**
	 * Show color picker
	 */
	showColorPicker() {
		this.colorInput.current.jscolor.show();
	}

	/**
	 * Render component
	 */
	render() {
		return (
			<div>
				{this.props.label ? (
					<div className="Polaris-Labelled__LabelWrapper">
						<div className="Polaris-Label">
							<label
								id={`${this.props.id}Label`}
								htmlFor={this.props.id}
								className="Polaris-Label__Text">
								{this.props.label}
							</label>
						</div>
					</div>
				) : null}
    
				<div className="Polaris-Connected">
					<div className="Polaris-Connected__Item Polaris-Connected__Item--connection">
						<button
							type="button"
							className="Polaris-Button Polaris-Button--outline"
							onClick={this.showColorPicker}
							ref={this.colorSwatch}
						/>
					</div>
					<div className="Polaris-Connected__Item Polaris-Connected__Item--primary">
						<div className="Polaris-TextField">
							<input
								id={this.props.id}
								className="Polaris-TextField__Input jscolor-input {hash:true,styleElement:'',onFineChange:'jsColorOnFineChange(this)'}"
								aria-labelledby={`${this.props.id}Label`}
								aria-invalid="false"
								value={this.props.value}
								onChange={() => {}}
								onFocus={this.showColorPicker}
								ref={this.colorInput}
								maxLength="7"
							/>
							<div className="Polaris-TextField__Backdrop" />
						</div>
					</div>
				</div>
			</div>
		);
	}
}

/**
 * JsColor onFineChange callback
 * @param {*} thisObj
 */
window.jsColorOnFineChange = function(thisObj) {
	thisObj.valueElement.dispatchEvent(
		new CustomEvent('onFineChange', { detail: { jscolor: thisObj } })
	);
};

export default JsColor;

Usage:

<JsColor id="visitorsWidgetBackgroundColor" label="Message background color" value={this.state.settings.background_color} onChange={(selected) => { this.setState({ settings: { ...this.state.settings, background_color: selected } }) }} />

Demo: https://codesandbox.io/s/5vjx592m6p

Useful, thanks!