Function useKeyMap

packages/graphiql-react/src/editor/hooks.ts:135–156

(
  editor: CodeMirrorEditor | null,
  keys: string[],
  callback?: EmptyCallback,
)

type EmptyCallback = () => void;

export function useKeyMap(
  editor: CodeMirrorEditor | null,
  keys: string[],
  callback?: EmptyCallback,
) {
  useEffect(() => {
    if (!editor) {
      return;
    }
    for (const key of keys) {
      editor.removeKeyMap(key);
    }

    if (callback) {
      const keyMap: Record<string, EmptyCallback> = {};
      for (const key of keys) {
        keyMap[key] = () => callback();
      }
      editor.addKeyMap(keyMap);
    }
  }, [editor, keys, callback]);
}

export type UseCopyQueryArgs = {
  /**