Plugins

Monaco Editor as Syntax Highlighter

---

Author: https://github.com/nojaf

Description: Using Monaco Editor as a Syntax Highlighter.

---

import loader from "https://esm.sh/@monaco-editor/[email protected]"

const nojafPlugin = {
  components: {
    SyntaxHighlighter: (props) => {
      const React = props.React;
      const myRef = React.createRef();
      React.useEffect(() => {
        let editor = null;

        const cancelable = loader.init();
        cancelable.then(monaco => {
          if (myRef.current) {
            editor = monaco.editor.create(myRef.current, {
              value: props.children,
              language: props.language
            })
          }
        }).catch(
          (error) =>
            error?.type !== 'cancelation' && console.error('Monaco initialization: error:', error),
        );

        return () => {
          if (cancelable && !myRef.current) {
            cancelable.cancel();
          }

          if (editor) {
            console.log(editor);
            editor.dispose();
          }
        }

      }, [myRef, props.children]);


      // The container needs a height.
      const maxHeight = 450;
      const newLineCount = !props.children ? 0 : (props.children.match(/\n/g)).length
      const proposedHeight = (newLineCount * 14)
      const minHeight = Math.max(100, Math.min(proposedHeight, maxHeight));

      return React.createElement("div", { ref: myRef, style: { minHeight: `${minHeight}px` } }, null);
    }
  }
}

More information in https://github.com/swagger-api/swagger-ui/pull/9728#issuecomment-2047127230