96 lines
3.1 KiB
JavaScript
96 lines
3.1 KiB
JavaScript
// @flow
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// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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import React, {Component} from 'react';
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import Typography from 'material-ui/Typography';
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import {styles} from '../common';
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// multiplier multiplies a number by another.
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export const multiplier = <T>(by: number = 1) => (x: number) => x * by;
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// percentPlotter renders a tooltip, which displays the value of the payload followed by a percent sign.
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export const percentPlotter = <T>(text: string, mapper: (T => T) = multiplier(1)) => (payload: T) => {
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const p = mapper(payload);
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if (typeof p !== 'number') {
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return null;
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}
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return (
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<Typography type='caption' color='inherit'>
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<span style={styles.light}>{text}</span> {p.toFixed(2)} %
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</Typography>
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);
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};
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// unit contains the units for the bytePlotter.
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const unit = ['', 'Ki', 'Mi', 'Gi', 'Ti', 'Pi', 'Ei', 'Zi', 'Yi'];
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// simplifyBytes returns the simplified version of the given value followed by the unit.
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const simplifyBytes = (x: number) => {
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let i = 0;
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for (; x > 1024 && i < 8; i++) {
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x /= 1024;
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}
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return x.toFixed(2).toString().concat(' ', unit[i], 'B');
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};
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// bytePlotter renders a tooltip, which displays the payload as a byte value.
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export const bytePlotter = <T>(text: string, mapper: (T => T) = multiplier(1)) => (payload: T) => {
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const p = mapper(payload);
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if (typeof p !== 'number') {
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return null;
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}
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return (
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<Typography type='caption' color='inherit'>
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<span style={styles.light}>{text}</span> {simplifyBytes(p)}
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</Typography>
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);
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};
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// bytePlotter renders a tooltip, which displays the payload as a byte value followed by '/s'.
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export const bytePerSecPlotter = <T>(text: string, mapper: (T => T) = multiplier(1)) => (payload: T) => {
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const p = mapper(payload);
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if (typeof p !== 'number') {
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return null;
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}
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return (
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<Typography type='caption' color='inherit'>
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<span style={styles.light}>{text}</span> {simplifyBytes(p)}/s
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</Typography>
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);
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};
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export type Props = {
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active: boolean,
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payload: Object,
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tooltip: <T>(text: string, mapper?: T => T) => (payload: mixed) => null | React$Element<any>,
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};
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// CustomTooltip takes a tooltip function, and uses it to plot the active value of the chart.
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class CustomTooltip extends Component<Props> {
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render() {
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const {active, payload, tooltip} = this.props;
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if (!active || typeof tooltip !== 'function' || !Array.isArray(payload) || payload.length < 1) {
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return null;
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}
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return tooltip(payload[0].value);
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}
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}
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export default CustomTooltip;
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