Function CodeEditor

app/components/CodeEditor.tsx:38–122

(opts: CodeEditorProps)

};

export function CodeEditor(opts: CodeEditorProps) {
  const { content, language, readOnly, onChange, onUpdate, selection } = {
    ...defaultProps,
    ...opts,
  };

  const [theme] = useTheme();

  const extensions = getEditorSetup();

  const languageExtension = languages[language];

  extensions.push(languageExtension());

  const editor = useRef(null);
  const { setContainer, view, state } = useCodeMirror({
    container: editor.current,
    extensions,
    editable: !readOnly,
    contentEditable: !readOnly,
    value: content,
    autoFocus: false,
    theme: theme === "light" ? lightTheme() : darkTheme(),
    indentWithTab: false,
    basicSetup: false,
    onChange,
    onUpdate,
  });

  useEffect(() => {
    if (editor.current) {
      setContainer(editor.current);
    }
  }, [editor.current]);

  const setSelectionRef = useRef(false);

  useEffect(() => {
    if (setSelectionRef.current) {
      return;
    }

    if (view) {
      setSelectionRef.current = true;

      const selectionStart = selection?.start ?? defaultProps.selection.start;
      const selectionEnd = selection?.end ?? defaultProps.selection.end;

      const lineNumber = state?.doc.lineAt(selectionStart).number;

      const transactionSpec: TransactionSpec = {
        selection: { anchor: selectionStart, head: selectionEnd },
        effects: EditorView.scrollIntoView(selectionStart, {
          y: "start",
          yMargin: 100,
        }),
      };