go-ethereum/dashboard/assets/components/Home.jsx

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// @flow
// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
import React, {Component} from 'react';
import withTheme from 'material-ui/styles/withTheme';
import {LineChart, AreaChart, Area, YAxis, CartesianGrid, Line} from 'recharts';
import ChartGrid from './ChartGrid';
import type {ChartEntry} from '../types/message';
export type Props = {
theme: Object,
memory: Array<ChartEntry>,
traffic: Array<ChartEntry>,
shouldUpdate: Object,
};
// Home renders the home content.
class Home extends Component<Props> {
constructor(props: Props) {
super(props);
const {theme} = props; // The theme property is injected by withTheme().
this.memoryColor = theme.palette.primary[300];
this.trafficColor = theme.palette.secondary[300];
}
shouldComponentUpdate(nextProps) {
return nextProps.shouldUpdate.has('memory') || nextProps.shouldUpdate.has('traffic');
}
render() {
const {memory, traffic} = this.props;
return (
<ChartGrid spacing={24}>
<AreaChart xs={6} height={300} values={memory}>
<YAxis />
<Area type="monotone" dataKey="value" stroke={this.memoryColor} fill={this.memoryColor} />
</AreaChart>
<LineChart xs={6} height={300} values={traffic}>
<Line type="monotone" dataKey="value" stroke={this.trafficColor} dot={false} />
</LineChart>
<LineChart xs={6} height={300} values={memory}>
<YAxis />
<CartesianGrid stroke="#eee" strokeDasharray="5 5" />
<Line type="monotone" dataKey="value" stroke={this.memoryColor} dot={false} />
</LineChart>
<AreaChart xs={6} height={300} values={traffic}>
<CartesianGrid stroke="#eee" strokeDasharray="5 5" vertical={false} />
<Area type="monotone" dataKey="value" stroke={this.trafficColor} fill={this.trafficColor} />
</AreaChart>
</ChartGrid>
);
}
}
export default withTheme()(Home);