private updateRendererState:()

in client/src/cqlInput/popover/TypeaheadPopover.ts [59:107]
36 lines of code
3 McCabe index (conditional complexity)

  private updateRendererState: (state: PopoverRendererState) => void =
    noopUpdateRendererState;

  private _applySuggestion: (from: number, to: number, value: string) => void;
  private _skipSuggestion: () => void;
  private currentSuggestion: TypeaheadSuggestion | undefined;
  private currentOptionIndex = 0;
  private isPending = false;

  public constructor(
    private view: EditorView,
    protected popoverEl: HTMLElement,
    // Apply a suggestion to the input
    applySuggestion: (from: number, to: number, value: string) => void,
    // Skip a suggestion, and move on to the next valid field
    skipSuggestion: () => void,
    // A callback that receives everything necessary to render popover content
    // as the input state changes.
    renderPopoverContent: (args: PopoverRendererArgs) => void
  ) {
    super(popoverEl);
    this._applySuggestion = applySuggestion;
    this._skipSuggestion = skipSuggestion;

    renderPopoverContent({
      applySuggestion: this.applySuggestion,
      skipSuggestion: this.skipSuggestion,
      subscribeToAction: this.actionSubscriber,
      subscribeToState: this.stateSubscriber,
      closePopover: this.hide,
      popoverEl
    })

    // Prevent the popover from stealing focus from the input, unless we are
    // focusing on another input within the popover
    popoverEl.addEventListener("mousedown", (e) => {
      if ((e.target as HTMLElement).tagName !== "INPUT") {
        e.preventDefault();
      }
    });

    // Close the popover when the input loses focus, unless we are focusing
    // on an element within the popover
    view.dom.addEventListener("blur", (e) => {
      if (!popoverEl.contains(e.relatedTarget as HTMLElement)) {
        this.hide();
      }
    });
  }