@codemirror/view#lineNumbers TypeScript Examples

The following examples show how to use @codemirror/view#lineNumbers. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: code.tsx    From nota with MIT License 5 votes vote down vote up 
Listing: React.FC<ListingProps> = props => {
  let ctx = usePlugin(ListingPlugin);
  let ref = useRef(null);

  useEffect(() => {
    let language = props.language || ctx.language;

    let code = joinRecursive(props.children as any);
    let parseResult = null;
    if (props.delimiters) {
      parseResult = parseWithDelimiters(code, props.delimiters.delimiters);
      if (parseResult.error) {
        throw parseResult.error;
      } else {
        code = parseResult.outputCode!;
      }
    }

    let editor = new EditorView({
      state: EditorState.create({
        doc: code,
        extensions: [
          lineNumbers(),
          syntaxHighlighting(defaultHighlightStyle, { fallback: true }),
          theme,
          EditorView.editable.of(props.editable || false),
          props.wrap || ctx.wrap ? EditorView.lineWrapping : [],
          highlightField,
        ]
          .concat(language ? [language] : [])
          .concat(props.extensions || []),
      }),
      parent: ref.current!,
    });

    if (props.onLoad) {
      props.onLoad(editor);
    }

    if (props.delimiters) {
      props.delimiters.onParse(parseResult!.ranges!);
    }
  }, []);

  return <div className="listing" ref={ref} />;
}
Example #2
Source File: index.tsx    From pintora with MIT License 4 votes vote down vote up 
Editor = (props: Props) => {
  const { code, onCodeChange, editorOptions, errorInfo } = props
  const wrapperRef = useRef<HTMLDivElement>()
  const viewRef = useRef<EditorView>()
  const stateRef = useRef<EditorState>()

  useEffect(() => {
    if (!wrapperRef.current) return

    let editor = viewRef.current
    let state = stateRef.current
    if (viewRef.current) viewRef.current.destroy()
    if (!state) {
      const onUpdateExtension = EditorView.updateListener.of(update => {
        if (update.docChanged && state) {
          const newCode = update.view.state.doc.toJSON().join('\n')
          onCodeChange(newCode)
        }
      })
      const extensions: Extension[] = [
        keymap.of(standardKeymap),
        history(),
        keymap.of(historyKeymap),
        onUpdateExtension,
        keymap.of(searchKeymap),
        lineNumbers(),
        search({ top: true }),
        highlightActiveLine(),
        oneDark,
        keymap.of(tabKeymaps),
      ]
      if (editorOptions.language === 'json') {
        extensions.push(json())
      }

      state = EditorState.create({
        doc: code,
        extensions,
      })
      stateRef.current = state
    }

    editor = new EditorView({
      parent: wrapperRef.current,
      state: state,
    })
    viewRef.current = editor

    return () => {
      if (viewRef.current) {
        viewRef.current.destroy()
      }
    }
  }, [])

  useEffect(() => {
    const view = viewRef.current
    if (view && view.state) {
      const state = view.state
      const currentCode = state.doc.toJSON().join('\n')
      // console.log('currentCode == code', currentCode == code)
      if (currentCode !== code) {
        view.dispatch(state.update({ changes: { from: 0, to: currentCode.length, insert: code } }))
      }
    }
  }, [code])

  useEffect(() => {
    const view = viewRef.current
    if (view) {
      if (errorInfo) {
        const spec = setDiagnostics(view.state, [
          {
            severity: 'error',
            message: errorInfo.message,
            from: errorInfo.offset,
            to: errorInfo.offset,
          },
        ])
        view.dispatch(spec)
      } else {
        view.dispatch(setDiagnostics(view.state, []))
      }
    }
  }, [errorInfo])

  // TOOD: highlight error
  // useEffect(() => {
  // }, [errorInfo])

  return <div className="CMEditor" ref={wrapperRef as any}></div>
}