Dialog Toggle Events polyfill

This polyfills toggle events for the <dialog> element.

Installation

If you're using npm, you only need to import the package, like so:

import "dialog-toggle-events-polyfill";

This will automatically apply the polyfill if required.

If you'd like to manually apply the polyfill, you can instead import the isSupported and apply functions directly from the ./polyfill.js file, which is mapped to /fn:

import { isSupported, apply } from "dialog-toggle-events-polyfill/fn";
if (!isSupported()) apply();

An isPolyfilled function is also available, to detect if it has been polyfilled:

import { isSupported, isPolyfilled, apply } from "dialog-toggle-events-polyfill/fn";
if (!isSupported() && !isPolyfilled()) apply();

Alternatively, if you're not using a package manager, you can use the unpkg script:

<script
  type="module"
  async
  src="https://unpkg.com/dialog-toggle-events-polyfill@latest/index.min.js"
></script>

Usage

With the module imported, you can use beforetoggle and toggle events for dialogs:

<dialog id="mydialog">I'm a dialog!</dialog>
<script>
  mydialog.addEventListener('beforetoggle', console.log)
  mydialog.showModal()
</script>