Index: openacs-4/packages/xowiki/www/resources/selection-area.js
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/www/resources/Attic/selection-area.js,v
diff -u -r1.1.2.4 -r1.1.2.5
--- openacs-4/packages/xowiki/www/resources/selection-area.js	13 Aug 2019 07:27:02 -0000	1.1.2.4
+++ openacs-4/packages/xowiki/www/resources/selection-area.js	18 Oct 2022 12:58:57 -0000	1.1.2.5
@@ -47,9 +47,13 @@
     // Reparent the dropped item
     ul.appendChild(sourceElement);
 
+    var id = ul.parentElement.parentElement.id;
+    selection_area_update_internal_representation(id);
+}
+
+function selection_area_update_internal_representation (id) {
     // Update the internal representation based on the data-element of
     // the list items.
-    var id       = ul.parentElement.parentElement.id;
     var textarea = document.getElementById(id + ".text");
     var items    = document.getElementById(id + ".selected").getElementsByTagName('LI');
     var internalRep = "";
@@ -61,6 +65,28 @@
     textarea.value = internalRep;
 }
 
+function selection_area_bulk_operation_handler(ev, operation) {
+    if (operation == 'bulk_add') {
+        var source_class = '.candidates';
+        var destination_class = '.selected';
+    } else {
+        // bulk_remove operation
+        var source_class = '.selected';
+        var destination_class = '.candidates';
+    }
+
+    var id          = ev.target.previousSibling.parentElement.parentElement.id;
+    var source      = document.getElementById(id + source_class).getElementsByTagName('LI');
+    var destination = document.getElementById(id + destination_class);
+
+    // Reparent all source items
+    while(source.length > 0) {
+        destination.appendChild(source[0]);
+    }
+
+    selection_area_update_internal_representation(id);
+}
+
 /*
  * Local variables:
  *    mode: JavaScript