dashboard: CPU, memory, diskIO and traffic on the footer (ethereum#15950

)

* dashboard: footer, deep state update

* dashboard: resolve asset path

* dashboard: prevent state update on every reconnection

* dashboard: fix linter issue

* dashboard, cmd: minor UI fix, include commit hash

* dashboard: gitCommit renamed to commit

* dashboard: move the geth version to the right, make commit optional

* dashboard: memory, traffic and CPU on footer

* dashboard: fix merge

* dashboard: CPU, diskIO on footer

* dashboard: rename variables, use group declaration

* dashboard: docs

dashboard/assets/.eslintrc

@@ -40,6 +40,9 @@
         'react/jsx-indent':       ['error', 'tab'],
         'react/jsx-indent-props': ['error', 'tab'],
         'react/prefer-stateless-function': 'off',
+        'jsx-quotes':  ['error', 'prefer-single'],
+        'no-plusplus': 'off',
+        'no-console':  ['error', { allow: ['error'] }],
 
         // Specifies the maximum length of a line.
         'max-len': ['warn', 120, 2, {
@@ -49,7 +52,7 @@
             'ignoreStrings':          true,
             'ignoreTemplateLiterals': true,
         }],
-        // Enforces spacing between keys and values in object literal properties.
+        // Enforces consistent spacing between keys and values in object literal properties.
         'key-spacing': ['error', {'align': {
             'beforeColon': false,
             'afterColon':  true,

dashboard/assets/components/Common.jsx → dashboard/assets/common.jsx

@@ -63,3 +63,9 @@ export type MenuProp = {|...ProvidedMenuProp, id: string|};
 export const MENU: Map<string, {...MenuProp}> = new Map(menuSkeletons.map(({id, menu}) => ([id, {id, ...menu}])));
 
 export const DURATION = 200;
+
+export const styles = {
+	light: {
+		color: 'rgba(255, 255, 255, 0.54)',
+	},
+}

dashboard/assets/components/Body.jsx

@@ -18,35 +18,32 @@
 
 import React, {Component} from 'react';
 
-import withStyles from 'material-ui/styles/withStyles';
-
 import SideBar from './SideBar';
 import Main from './Main';
 import type {Content} from '../types/content';
 
-// Styles for the Body component.
-const styles = () => ({
+// styles contains the constant styles of the component.
+const styles = {
 	body: {
 		display: 'flex',
 		width:   '100%',
 		height:  '100%',
 	},
-});
+};
+
 export type Props = {
-	classes: Object,
 	opened: boolean,
-	changeContent: () => {},
+	changeContent: string => void,
 	active: string,
 	content: Content,
 	shouldUpdate: Object,
 };
+
 // Body renders the body of the dashboard.
 class Body extends Component<Props> {
 	render() {
-		const {classes} = this.props; // The classes property is injected by withStyles().
-
 		return (
-			<div className={classes.body}>
+			<div style={styles.body}>
 				<SideBar
 					opened={this.props.opened}
 					changeContent={this.props.changeContent}
@@ -61,4 +58,4 @@ class Body extends Component<Props> {
 	}
 }
 
-export default withStyles(styles)(Body);
+export default Body;

dashboard/assets/components/ChartGrid.jsx → dashboard/assets/components/ChartRow.jsx

@@ -1,6 +1,6 @@
 // @flow
 
-// Copyright 2017 The go-ethereum Authors
+// Copyright 2018 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
@@ -17,33 +17,41 @@
 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
 
 import React, {Component} from 'react';
-import type {Node} from 'react';
+import type {ChildrenArray} from 'react';
 
 import Grid from 'material-ui/Grid';
-import {ResponsiveContainer} from 'recharts';
+
+// styles contains the constant styles of the component.
+const styles = {
+	container: {
+		flexWrap: 'nowrap',
+		height:   '100%',
+		maxWidth: '100%',
+		margin:   0,
+	},
+	item: {
+		flex:    1,
+		padding: 0,
+	},
+}
 
 export type Props = {
-	spacing: number,
-	children: Node,
+	children: ChildrenArray<React$Element<any>>,
 };
-// ChartGrid renders a grid container for responsive charts.
-// The children are Recharts components extended with the Material-UI's xs property.
-class ChartGrid extends Component<Props> {
+
+// ChartRow renders a row of equally sized responsive charts.
+class ChartRow extends Component<Props> {
 	render() {
 		return (
-			<Grid container spacing={this.props.spacing}>
-				{
-					React.Children.map(this.props.children, child => (
-						<Grid item xs={child.props.xs}>
-							<ResponsiveContainer width="100%" height={child.props.height}>
-								{React.cloneElement(child, {data: child.props.values.map(value => ({value}))})}
-							</ResponsiveContainer>
-						</Grid>
-					))
-				}
+			<Grid container direction='row' style={styles.container} justify='space-between'>
+				{React.Children.map(this.props.children, child => (
+					<Grid item xs style={styles.item}>
+						{child}
+					</Grid>
+				))}
 			</Grid>
 		);
 	}
 }
 
-export default ChartGrid;
+export default ChartRow;

dashboard/assets/components/CustomTooltip.jsx

@@ -0,0 +1,95 @@
+// @flow
+
+// Copyright 2018 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 Typography from 'material-ui/Typography';
+import {styles} from '../common';
+
+// multiplier multiplies a number by another.
+export const multiplier = <T>(by: number = 1) => (x: number) => x * by;
+
+// percentPlotter renders a tooltip, which displays the value of the payload followed by a percent sign.
+export const percentPlotter = <T>(text: string, mapper: (T => T) = multiplier(1)) => (payload: T) => {
+	const p = mapper(payload);
+	if (typeof p !== 'number') {
+		return null;
+	}
+	return (
+		<Typography type='caption' color='inherit'>
+			<span style={styles.light}>{text}</span> {p.toFixed(2)} %
+		</Typography>
+	);
+};
+
+// unit contains the units for the bytePlotter.
+const unit = ['B', 'KB', 'MB', 'GB', 'TB', 'PB'];
+
+// simplifyBytes returns the simplified version of the given value followed by the unit.
+const simplifyBytes = (x: number) => {
+	let i = 0;
+	for (; x > 1024 && i < 5; i++) {
+		x /= 1024;
+	}
+	return x.toFixed(2).toString().concat(' ', unit[i]);
+};
+
+// bytePlotter renders a tooltip, which displays the payload as a byte value.
+export const bytePlotter = <T>(text: string, mapper: (T => T) = multiplier(1)) => (payload: T) => {
+	const p = mapper(payload);
+	if (typeof p !== 'number') {
+		return null;
+	}
+	return (
+		<Typography type='caption' color='inherit'>
+			<span style={styles.light}>{text}</span> {simplifyBytes(p)}
+		</Typography>
+	);
+};
+
+// bytePlotter renders a tooltip, which displays the payload as a byte value followed by '/s'.
+export const bytePerSecPlotter = <T>(text: string, mapper: (T => T) = multiplier(1)) => (payload: T) => {
+	const p = mapper(payload);
+	if (typeof p !== 'number') {
+		return null;
+	}
+	return (
+		<Typography type='caption' color='inherit'>
+			<span style={styles.light}>{text}</span> {simplifyBytes(p)}/s
+		</Typography>
+	);
+};
+
+export type Props = {
+	active: boolean,
+	payload: Object,
+	tooltip: <T>(text: string, mapper?: T => T) => (payload: mixed) => null | React$Element<any>,
+};
+
+// CustomTooltip takes a tooltip function, and uses it to plot the active value of the chart.
+class CustomTooltip extends Component<Props> {
+	render() {
+		const {active, payload, tooltip} = this.props;
+		if (!active || typeof tooltip !== 'function') {
+			return null;
+		}
+		return tooltip(payload[0].value);
+	}
+}
+
+export default CustomTooltip;