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carbon/components/FontSelect.js

76 lines
1.6 KiB
JavaScript

import React from 'react'
import ListSetting from './ListSetting'
import { FONTS } from '../lib/constants'
const EXTENSIONS = ['.otf', '.ttf', '.woff']
const blobToUrl = blob =>
new Promise(resolve => {
const reader = new FileReader()
reader.onload = event => resolve(event.target.result)
reader.readAsDataURL(blob)
})
const Font = ({ id, name }) => (
<span style={id === 'upload' ? { textAlign: 'center', width: '100%' } : { fontFamily: id }}>
{name}
</span>
)
function FontSelect(props) {
const inputEl = React.useRef(null)
const [fonts, updateFonts] = React.useState(FONTS)
function onChange(id) {
if (id === 'upload') {
inputEl.current.click()
} else {
props.onChange('fontFamily', id)
const font = fonts.find(f => f.id === id)
props.onChange('fontUrl', font.url || null)
}
}
async function onFiles() {
const { files } = inputEl.current
const name = files[0].name.split('.')[0]
const url = await blobToUrl(files[0])
updateFonts(fonts => [{ id: name, name, url }, ...fonts])
props.onChange('fontFamily', name)
props.onChange('fontUrl', url)
}
return (
<>
<ListSetting
title="Font"
items={[{ id: 'upload', name: 'Upload +' }, ...fonts]}
{...props}
onChange={onChange}
>
{Font}
</ListSetting>
<input
ref={inputEl}
type="file"
id="fileElem"
multiple
accept={EXTENSIONS.join(',')}
onChange={onFiles}
/>
<style jsx>
{`
input {
display: none;
}
`}
</style>
</>
)
}
export default FontSelect