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filepizza/lib/components/Spinner.js

56 lines
1.4 KiB
JavaScript

import React from 'react'
import classnames from 'classnames'
// Taken from StackOverflow
// http://stackoverflow.com/questions/15900485/correct-way-to-convert-size-in-bytes-to-kb-mb-gb-in-javascript
function formatSize(bytes) {
if (bytes === 0) return '0 Bytes'
const k = 1000
const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
const i = Math.floor(Math.log(bytes) / Math.log(k))
return (bytes / Math.pow(k, i)).toPrecision(3) + ' ' + sizes[i]
}
export default class Spinner extends React.Component {
render() {
const classes = classnames('spinner', {
'spinner-animated': this.props.animated
})
return <div className={classes}>
<div className="spinner-content">
<img
alt={this.props.name || this.props.dir}
src={`/images/${this.props.dir}.png`}
className="spinner-image" />
{this.props.name === null ? null
: <div className="spinner-name">{this.props.name}</div>}
{this.props.size === null ? null
: <div className="spinner-size">{formatSize(this.props.size)}</div>}
</div>
<img src="/images/pizza.png" className="spinner-background" />
</div>
}
}
Spinner.propTypes = {
dir: React.PropTypes.oneOf(['up', 'down']).isRequired,
name: React.PropTypes.string,
size: React.PropTypes.number,
animated: React.PropTypes.bool
}
Spinner.defaultProps = {
name: null,
size: null,
animated: false
}