celery-overlay

This is the full source of the Celery overlay javascript file that gets loaded when embedding celery.js

Parent Window Callbacks

Celery will check for callback methods attached to your main page. When certain events happen in the Celery checkout process, these callback methods will be fired:

function onCeleryOpen() {
	console.log("Celery opened!");
}
function onCeleryClose() {
	console.log("Celery closed!");
}
function onCeleryOrderPlaced() {
	console.log("Celery placed!");
}

This is good place to put analytics callbacks. For instance:

function onCeleryOrderPlaced() {
    ga('send', 'event', 'preorder', "complete");
}