Jakob Ackermann
34 lines
1.3 KiB
TypeScript
34 lines
1.3 KiB
TypeScript
import { useCallback } from 'react'
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import { useProjectContext } from '@/shared/context/project-context'
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import { useEditorOpenDocContext } from '@/features/ide-react/context/editor-open-doc-context'
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import { useFileTreePathContext } from '@/features/file-tree/contexts/file-tree-path'
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import { isMainFile } from '@/features/pdf-preview/util/editor-files'
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export type RootDocInfo = {
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rootDocId: string | null
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rootResourcePath: string
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}
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export function useRootDoc(): () => RootDocInfo {
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const { project } = useProjectContext()
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const projectRootDocId = project?.rootDocId ?? null
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const { currentDocument } = useEditorOpenDocContext()
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const { pathInFolder } = useFileTreePathContext()
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// Inspecting the document content is too expensive to perform on every update.
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// Compute the rootDoc on-demand instead.
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return useCallback((): RootDocInfo => {
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let rootDocId: string | null = projectRootDocId
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if (
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currentDocument &&
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currentDocument.doc_id !== projectRootDocId &&
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isMainFile(currentDocument.getSnapshot())
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) {
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rootDocId = currentDocument.doc_id
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}
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const rootResourcePath =
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(rootDocId && pathInFolder(rootDocId)) || 'main.tex'
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return { rootDocId, rootResourcePath }
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}, [projectRootDocId, currentDocument, pathInFolder])
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}
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