Force process state, start spinner and deactivate fields on submit button click for Caldera Forms.

cf-force-process-state.php

<?php
 /*
 * Plugin Name: CF Force process state
 * Description: Force process state, start spinner and deactivate fields.
 */
 
 add_filter('wp_footer', function(){
	echo '<script type="text/javascript">
		jQuery(".caldera-grid input[type=\'submit\']").on("click", function() {
			 var form = jQuery(this).parent("form");
			 jQuery(".caldera-grid").data("cf-form-id", form.id  ).addClass("cf_processing");
		});
	</script>';
});