@bezim – Are you looking to add an interupt or extra interactivity on click? IE do you want to prevent add to cart until something happens in the popup or do you simply want the item added to cart and a popup triggered.
Both are possible now, and will be easier over the next few versions not requiring custom code.
Currently our default click trigger blocks default actions such as adding to cart. This will be optional in v1.4.1, but currently you can add some JS like this to your functions.php that will do it now.
function custom_footer_popup_scripts() {
?>
<script>
(function ($, document, undefined) {
$('.woo-add-to-cart').on('click', function () {
$('#popmake-123').popmake('open');
});
}(jQuery, document));
</script>
<?php
}
add_action( 'wp_footer', 'custom_footer_popup_scripts' );
I am not sure of the correct button class for the woo-add-to-cart part and you need to set the 123 to match your popup id #.
Hope that helps, please take a moment to rate and review the plugin and or support.