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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 withStyles from 'material-ui/styles/withStyles';
import Typography from 'material-ui/Typography';
import Grid from 'material-ui/Grid';
import {ResponsiveContainer, AreaChart, Area, Tooltip} from 'recharts';
import ChartRow from './ChartRow';
import CustomTooltip, {bytePlotter, bytePerSecPlotter, percentPlotter, multiplier} from './CustomTooltip';
import {styles as commonStyles} from '../common';
import type {Content} from '../types/content';
// styles contains the constant styles of the component.
const styles = {
footer: {
maxWidth: '100%',
flexWrap: 'nowrap',
margin: 0,
},
chartRowWrapper: {
height: '100%',
padding: 0,
},
doubleChartWrapper: {
height: '100%',
width: '99%',
paddingTop: 5,
},
};
// themeStyles returns the styles generated from the theme for the component.
const themeStyles: Object = (theme: Object) => ({
footer: {
backgroundColor: theme.palette.background.appBar,
color: theme.palette.getContrastText(theme.palette.background.appBar),
zIndex: theme.zIndex.appBar,
height: theme.spacing.unit * 10,
},
});
export type Props = {
classes: Object, // injected by withStyles()
theme: Object,
content: Content,
shouldUpdate: Object,
};
// Footer renders the footer of the dashboard.
class Footer extends Component<Props> {
shouldComponentUpdate(nextProps) {
return typeof nextProps.shouldUpdate.home !== 'undefined';
}
// info renders a label with the given values.
info = (about: string, value: ?string) => (value ? (
<Typography type='caption' color='inherit'>
<span style={commonStyles.light}>{about}</span> {value}
</Typography>
) : null);
// doubleChart renders a pair of charts separated by the baseline.
doubleChart = (syncId, topChart, bottomChart) => {
const topKey = 'topKey';
const bottomKey = 'bottomKey';
const topDefault = topChart.default ? topChart.default : 0;
const bottomDefault = bottomChart.default ? bottomChart.default : 0;
const topTooltip = topChart.tooltip ? (
<Tooltip cursor={false} content={<CustomTooltip tooltip={topChart.tooltip} />} />
) : null;
const bottomTooltip = bottomChart.tooltip ? (
<Tooltip cursor={false} content={<CustomTooltip tooltip={bottomChart.tooltip} />} />
) : null;
const topColor = '#8884d8';
const bottomColor = '#82ca9d';
// Put the samples of the two charts into the same array in order to avoid problems
// at the synchronized area charts. If one of the two arrays doesn't have value at
// a given position, give it a 0 default value.
let data = [...topChart.data.map(({value}) => {
const d = {};
d[topKey] = value || topDefault;
return d;
})];
for (let i = 0; i < data.length && i < bottomChart.data.length; i++) {
// The value needs to be negative in order to plot it upside down.
const d = bottomChart.data[i];
data[i][bottomKey] = d && d.value ? -d.value : bottomDefault;
}
data = [...data, ...bottomChart.data.slice(data.length).map(({value}) => {
const d = {};
d[topKey] = topDefault;
d[bottomKey] = -value || bottomDefault;
return d;
})];
return (
<div style={styles.doubleChartWrapper}>
<ResponsiveContainer width='100%' height='50%'>
<AreaChart data={data} syncId={syncId} >
{topTooltip}
<Area type='monotone' dataKey={topKey} stroke={topColor} fill={topColor} />
</AreaChart>
</ResponsiveContainer>
<div style={{marginTop: -10, width: '100%', height: '50%'}}>
<ResponsiveContainer width='100%' height='100%'>
<AreaChart data={data} syncId={syncId} >
{bottomTooltip}
<Area type='monotone' dataKey={bottomKey} stroke={bottomColor} fill={bottomColor} />
</AreaChart>
</ResponsiveContainer>
</div>
</div>
);
}
render() {
const {content} = this.props;
const {general, home} = content;
return (
<Grid container className={this.props.classes.footer} direction='row' alignItems='center' style={styles.footer}>
<Grid item xs style={styles.chartRowWrapper}>
<ChartRow>
{this.doubleChart(
'all',
{data: home.processCPU, tooltip: percentPlotter('Process')},
{data: home.systemCPU, tooltip: percentPlotter('System', multiplier(-1))},
)}
{this.doubleChart(
'all',
{data: home.activeMemory, tooltip: bytePlotter('Active')},
{data: home.virtualMemory, tooltip: bytePlotter('Virtual', multiplier(-1))},
)}
{this.doubleChart(
'all',
{data: home.diskRead, tooltip: bytePerSecPlotter('Disk Read')},
{data: home.diskWrite, tooltip: bytePerSecPlotter('Disk Write', multiplier(-1))},
)}
{this.doubleChart(
'all',
{data: home.networkIngress, tooltip: bytePerSecPlotter('Download')},
{data: home.networkEgress, tooltip: bytePerSecPlotter('Upload', multiplier(-1))},
)}
</ChartRow>
</Grid>
<Grid item >
{this.info('Geth', general.version)}
{this.info('Commit', general.commit ? general.commit.substring(0, 7) : null)}
</Grid>
</Grid>
);
}
}
export default withStyles(themeStyles)(Footer);
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