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// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
import {FormattedMessage} from 'react-intl';
import * as Utils from 'utils/utils.jsx';
import React from 'react';
import ReactDOM from 'react-dom';
import Chart from 'chart.js';
export default class DoughnutChart extends React.Component {
constructor(props) {
super(props);
this.initChart = this.initChart.bind(this);
this.chart = null;
}
componentDidMount() {
this.initChart();
}
componentDidUpdate(prevProps) {
if (!Utils.areObjectsEqual(prevProps.data, this.props.data) || !Utils.areObjectsEqual(prevProps.options, this.props.options)) {
this.initChart(true);
}
}
componentWillUnmount() {
if (this.chart && this.refs.canvas) {
this.chart.destroy();
}
}
initChart(update) {
if (!this.refs.canvas) {
return;
}
var el = ReactDOM.findDOMNode(this.refs.canvas);
var ctx = el.getContext('2d');
this.chart = new Chart(ctx, {type: 'doughnut', data: this.props.data, options: this.props.options || {}}); //eslint-disable-line new-cap
if (update) {
this.chart.update();
}
}
render() {
let content;
if (this.props.data == null) {
content = (
<FormattedMessage
id='analytics.chart.loading'
defaultMessage='Loading...'
/>
);
} else {
content = (
<canvas
ref='canvas'
width={this.props.width}
height={this.props.height}
/>
);
}
return (
<div className='col-sm-6'>
<div className='total-count'>
<div className='title'>
{this.props.title}
</div>
<div className='content'>
{content}
</div>
</div>
</div>
);
}
}
DoughnutChart.propTypes = {
title: React.PropTypes.node,
width: React.PropTypes.string,
height: React.PropTypes.string,
data: React.PropTypes.object,
options: React.PropTypes.object
};
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