import * as React from 'react' ; import './ProgressBar.css' ; interface ProgressBarProps { className ? : string ; isIndeterminate ? : boolean ; value ? : number ; valueChangeDuration ? : number ; title ? : string ; } export default function ProgressBar ( props ) { let style = props . isIndeterminate ? { } : { width : props . value ? `calc(${ 100 * props . value }%)` : '0' } ; if ( props . valueChangeDuration ) { style = { ... style , animationName : 'widthZero' , animationFillMode : 'forwards' , animationDuration : `${ props . valueChangeDuration }s` , animationTimingFunction : 'linear' } ; } return ( < div className = { `progress progress-striped active ${ props . isIndeterminate ? 'indeterminate' : '' } ${ props . className }` } title = { props . title } > < div className = "progress-bar" style = { style } role = "progressbar" aria - label = "progress" aria - valuenow = { props . isIndeterminate ? 100 : props . value } aria - valuemin = { 0 } aria - valuemax = { 100 } /> < /div>); }