go-ethereum/dashboard/assets/components/Footer.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 withStyles from 'material-ui/styles/withStyles';
import AppBar from 'material-ui/AppBar';
import Toolbar from 'material-ui/Toolbar';
import Typography from 'material-ui/Typography';
import type {General} from '../types/content';
// styles contains styles for the Header component.
const styles = theme => ({
footer: {
backgroundColor: theme.palette.background.appBar,
color: theme.palette.getContrastText(theme.palette.background.appBar),
zIndex: theme.zIndex.appBar,
},
toolbar: {
paddingLeft: theme.spacing.unit,
paddingRight: theme.spacing.unit,
display: 'flex',
justifyContent: 'flex-end',
},
light: {
color: 'rgba(255, 255, 255, 0.54)',
},
});
export type Props = {
general: General,
classes: Object,
};
// TODO (kurkomisi): If the structure is appropriate, make an abstraction of the common parts with the Header.
// Footer renders the header of the dashboard.
class Footer extends Component<Props> {
shouldComponentUpdate(nextProps) {
return typeof nextProps.shouldUpdate.logs !== 'undefined';
}
info = (about: string, data: string) => (
<Typography type="caption" color="inherit">
<span className={this.props.classes.light}>{about}</span> {data}
</Typography>
);
render() {
const {classes, general} = this.props; // The classes property is injected by withStyles().
const geth = general.version ? this.info('Geth', general.version) : null;
const commit = general.commit ? this.info('Commit', general.commit.substring(0, 7)) : null;
return (
<AppBar position="static" className={classes.footer}>
<Toolbar className={classes.toolbar}>
<div>
{geth}
{commit}
</div>
</Toolbar>
</AppBar>
);
}
}
export default withStyles(styles)(Footer);