91 lines
2.4 KiB
JavaScript
91 lines
2.4 KiB
JavaScript
import React from 'react';
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import ClassNames from 'classnames';
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import style from './style';
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import prefixer from '../utils/prefixer';
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class ProgressBar extends React.Component {
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static propTypes = {
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buffer: React.PropTypes.number,
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className: React.PropTypes.string,
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max: React.PropTypes.number,
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min: React.PropTypes.number,
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mode: React.PropTypes.string,
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multicolor: React.PropTypes.bool,
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type: React.PropTypes.oneOf(['linear', 'circular']),
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value: React.PropTypes.number
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};
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static defaultProps = {
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buffer: 0,
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className: '',
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max: 100,
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min: 0,
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mode: 'indeterminate',
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multicolor: false,
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type: 'linear',
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value: 0
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};
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calculateRatio (value) {
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if (value < this.props.min) return 0;
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if (value > this.props.max) return 1;
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return (value - this.props.min) / (this.props.max - this.props.min);
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}
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circularStyle () {
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if (this.props.mode !== 'indeterminate') {
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return {strokeDasharray: `${2 * Math.PI * 25 * this.calculateRatio(this.props.value)}, 400`};
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}
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}
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linearStyle () {
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if (this.props.mode !== 'indeterminate') {
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return {
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buffer: prefixer({transform: `scaleX(${this.calculateRatio(this.props.buffer)})`}),
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value: prefixer({transform: `scaleX(${this.calculateRatio(this.props.value)})`})
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};
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} else {
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return {};
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}
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}
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renderCircular () {
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return (
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<svg className={style.circle}>
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<circle className={style.path} style={this.circularStyle()} cx='30' cy='30' r='25' />
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</svg>
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);
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}
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renderLinear () {
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const {buffer, value} = this.linearStyle();
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return (
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<div>
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<span ref='buffer' data-ref='buffer' className={style.buffer} style={buffer}></span>
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<span ref='value' data-ref='value' className={style.value} style={value}></span>
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</div>
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);
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}
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render () {
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const className = ClassNames(style[this.props.type], {
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[style[this.props.mode]]: this.props.mode,
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[style.multicolor]: this.props.multicolor
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}, this.props.className);
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return (
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<div
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data-react-toolbox='progress-bar'
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aria-valuenow={this.props.value}
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aria-valuemin={this.props.min}
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aria-valuemax={this.props.max}
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className={className}
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>
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{this.props.type === 'circular' ? this.renderCircular() : this.renderLinear()}
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</div>
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);
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}
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}
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export default ProgressBar;
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