DJANGO Phase 1

backend/staticfiles/admin/js/cancel.js

@@ -1,29 +1,20 @@
-'use strict';
-{
-    // Call function fn when the DOM is loaded and ready. If it is already
-    // loaded, call the function now.
-    // http://youmightnotneedjquery.com/#ready
-    function ready(fn) {
-        if (document.readyState !== 'loading') {
-            fn();
-        } else {
-            document.addEventListener('DOMContentLoaded', fn);
-        }
-    }
+/** global: django */
 
-    ready(function() {
-        function handleClick(event) {
-            event.preventDefault();
-            const params = new URLSearchParams(window.location.search);
-            if (params.has('_popup')) {
-                window.close(); // Close the popup.
-            } else {
-                window.history.back(); // Otherwise, go back.
-            }
-        }
-
-        document.querySelectorAll('.cancel-link').forEach(function(el) {
-            el.addEventListener('click', handleClick);
+if (typeof(django) !== 'undefined' && typeof(django.jQuery) !== 'undefined') {
+    (function($) {
+        'use strict';
+        $(document).ready(function() {
+            $('.cancel-link').click(function(e) {
+                e.preventDefault();
+                var parentWindow = window.parent;
+                if (parentWindow && typeof(parentWindow.dismissRelatedObjectModal) === 'function' && parentWindow !== window) {
+                    parentWindow.dismissRelatedObjectModal();
+                } else {
+                    // fallback to default behavior
+                    window.history.back();
+                }
+                return false;
+            });
         });
-    });
+    })(django.jQuery);
 }