overleaf/services/web/frontend/js/features/pdf-preview/components/pdf-expand-button.js

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import { Button, OverlayTrigger, Tooltip } from 'react-bootstrap'
import { useTranslation } from 'react-i18next'
import Icon from '../../../shared/components/icon'
import { usePdfPreviewContext } from '../contexts/pdf-preview-context'
import { memo, useMemo } from 'react'
function PdfExpandButton() {
const { pdfLayout, switchLayout } = usePdfPreviewContext()
const { t } = useTranslation()
const text = useMemo(() => {
return pdfLayout === 'sideBySide' ? t('full_screen') : t('split_screen')
}, [pdfLayout, t])
return (
<OverlayTrigger
placement="left"
overlay={<Tooltip id="expand-pdf-btn">{text}</Tooltip>}
>
<Button
onClick={switchLayout}
className="toolbar-pdf-expand-btn toolbar-item"
aria-label={text}
>
<Icon type={pdfLayout === 'sideBySide' ? 'expand' : 'compress'} />
</Button>
</OverlayTrigger>
)
}
export default memo(PdfExpandButton)