Function loadStyle

utils/functions.ts:352–375

(
  href: string,
  contentWindow = window as Window
)

  });

const loadStyle = (
  href: string,
  contentWindow = window as Window
): Promise<Event> =>
  new Promise((resolve, reject) => {
    const loadedStyles = [
      ...contentWindow.document.querySelectorAll("link[rel=stylesheet]"),
    ] as HTMLLinkElement[];

    if (loadedStyles.some((loadedStyle) => loadedStyle.href.endsWith(href))) {
      resolve(new Event("Already loaded."));
      return;
    }

    const link = contentWindow.document.createElement("link");

    link.rel = "stylesheet";
    link.fetchPriority = "high";
    link.href = href;
    link.addEventListener("error", reject, ONE_TIME_PASSIVE_EVENT);
    link.addEventListener("load", resolve, ONE_TIME_PASSIVE_EVENT);

    contentWindow.document.head.append(link);
  });

export const loadFiles = async (
  files?: string[],