alinea/dist/preview/RegisterPreview.js

[](https://npmjs.org/package/alinea) [](https://packagephobia.com/result?p=alinea)

import "../chunks/chunk-U5RRZUYZ.js";

// src/preview/RegisterPreview.ts
import { PreviewAction } from "alinea/preview/PreviewMessage";
function registerPreview(api) {
  if (typeof window === "undefined")
    return;
  function handleMessage(event) {
    if (!event.data || typeof event.data !== "object")
      return;
    const message = event.data;
    switch (message.action) {
      case PreviewAction.Preview:
        console.log("[Alinea preview received]");
        api.preview(message);
        return;
      case PreviewAction.Reload:
        console.log("[Alinea preview reload received]");
        return location.reload();
      case PreviewAction.Previous:
        console.log("[Alinea preview previous received]");
        return history.back();
      case PreviewAction.Next:
        console.log("[Alinea preview next received]");
        return history.forward();
      case PreviewAction.Ping:
        console.log("[Alinea preview ping received]");
        api.setIsPreviewing(true);
        return window.parent.postMessage(
          { action: PreviewAction.Pong },
          event.origin
        );
    }
  }
  if (window.location != window.parent.location) {
    window.parent.postMessage({ action: PreviewAction.Pong }, document.referrer);
    addEventListener("message", handleMessage);
    console.log("[Alinea preview listener attached]");
  }
  return () => {
    removeEventListener("message", handleMessage);
  };
}
export {
  registerPreview
};