fix: Do not disable action buttons after using cancel or back button (#1391)

* Fix #1377

* fix: After using back button (or cancel button) do not disable action buttons

* Update Changelog

Author: fsbraun

CHANGELOG.rst

@@ -2,6 +2,12 @@
 CHANGELOG
 =========
 
+unreleased
+==========
+
+* Ensure action buttons in directory listing do not get disabled after using
+  cancel or back button if files or folders are selected.
+
 3.0.1 (2023-07-13)
 ==================
 

filer/static/filer/js/base.js

@@ -91,6 +91,12 @@ Cl.mediator = new Mediator();
 
             // timeout is needed to wait until table row has class selected.
             setTimeout(function () {
+                // Set classes for checked items
+                actionSelect.each(function (no, el) {
+                    if (el.checked) {
+                        el.closest('.list-item').classList.add('selected');
+                    }
+                });
                 if (navigatorTable.hasClass('selected')) {
                     actionList.addClass('action-selected');
                 }