overleaf/services/web/frontend/js/features/ide-react/components/editor-and-pdf.tsx

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import React, { FC, useState } from 'react'
import { Panel, PanelGroup } from 'react-resizable-panels'
import NoSelectionPane from '@/features/ide-react/components/editor/no-selection-pane'
import FileView from '@/features/file-view/components/file-view'
import MultipleSelectionPane from '@/features/ide-react/components/editor/multiple-selection-pane'
import { HorizontalResizeHandle } from '@/features/ide-react/components/resize/horizontal-resize-handle'
import { HorizontalToggler } from '@/features/ide-react/components/resize/horizontal-toggler'
import { DefaultSynctexControl } from '@/features/pdf-preview/components/detach-synctex-control'
import PdfPreview from '@/features/pdf-preview/components/pdf-preview'
import { usePdfPane } from '@/features/ide-react/hooks/use-pdf-pane'
import { useLayoutContext } from '@/shared/context/layout-context'
import { useTranslation } from 'react-i18next'
import classNames from 'classnames'
import { fileViewFile } from '@/features/ide-react/util/file-view'
import { useFileTreeOpenContext } from '@/features/ide-react/context/file-tree-open-context'
import { EditorPane } from '@/features/ide-react/components/editor/editor-pane'
export const EditorAndPdf: FC = () => {
const [resizing, setResizing] = useState(false)
const { t } = useTranslation()
const {
togglePdfPane,
handlePdfPaneExpand,
handlePdfPaneCollapse,
setPdfIsOpen,
pdfIsOpen,
pdfPanelRef,
} = usePdfPane()
const { view, pdfLayout } = useLayoutContext()
const { selectedEntityCount, openEntity } = useFileTreeOpenContext()
const editorIsOpen =
view === 'editor' || view === 'file' || pdfLayout === 'sideBySide'
return (
<PanelGroup
autoSaveId="ide-editor-pdf-layout"
direction="horizontal"
className={classNames({
'ide-panel-group-resizing': resizing,
hidden: view === 'history',
})}
>
{/* main */}
<Panel
id="panel-main"
order={1}
defaultSize={50}
minSize={5}
className={classNames('ide-react-panel', {
'ide-panel-group-resizing': resizing,
hidden: !editorIsOpen,
})}
>
{selectedEntityCount === 0 && <NoSelectionPane />}
{selectedEntityCount === 1 && openEntity?.type === 'fileRef' && (
<FileView file={fileViewFile(openEntity.entity)} />
)}
{selectedEntityCount > 1 && (
<MultipleSelectionPane selectedEntityCount={selectedEntityCount} />
)}
<EditorPane />
</Panel>
<HorizontalResizeHandle
resizable={pdfLayout === 'sideBySide'}
onDoubleClick={togglePdfPane}
onDragging={setResizing}
className={classNames({
hidden: !editorIsOpen,
})}
>
<HorizontalToggler
id="editor-pdf"
togglerType="east"
isOpen={pdfIsOpen}
setIsOpen={setPdfIsOpen}
tooltipWhenOpen={t('tooltip_hide_pdf')}
tooltipWhenClosed={t('tooltip_show_pdf')}
/>
{pdfLayout === 'sideBySide' && (
<div className="synctex-controls">
<DefaultSynctexControl />
</div>
)}
</HorizontalResizeHandle>
{/* pdf */}
<Panel
ref={pdfPanelRef}
id="panel-pdf"
order={2}
defaultSize={50}
minSize={5}
collapsible
onCollapse={handlePdfPaneCollapse}
onExpand={handlePdfPaneExpand}
className="ide-react-panel"
>
{pdfIsOpen && <PdfPreview />}
{/* ensure that "sync to code" is available in PDF only layout */}
{pdfLayout === 'flat' && view === 'pdf' && (
<div className="synctex-controls" hidden>
<DefaultSynctexControl />
</div>
)}
</Panel>
</PanelGroup>
)
}