Method _handleOptionClicked

src/cdk/listbox/listbox.ts:962–975

* Handle the user clicking an option. * @param option The option that was clicked.

(option: CdkOption<T>, event: MouseEvent)

   * @param option The option that was clicked.
   */
  private _handleOptionClicked(option: CdkOption<T>, event: MouseEvent) {
    event.preventDefault();
    this.listKeyManager.setActiveItem(option);
    if (event.shiftKey && this.multiple) {
      this.triggerRange(
        option,
        this._getLastTriggeredIndex() ?? this.listKeyManager.activeItemIndex!,
        this.listKeyManager.activeItemIndex!,
        !option.isSelected(),
      );
    } else {
      this.triggerOption(option);
    }
  }

  /** Verifies that no two options represent the same value under the compareWith function. */
  private _verifyNoOptionValueCollisions() {