add isFiltred in backend

product/ERP5Form/ListBox.py

@@ -706,22 +706,40 @@ class ListBoxRenderer:
       # we show all rows and do not care to hide anything
       return 0
 
+    # ignore_hide_rows parameter force to display the content
+    ignore_hide_rows = REQUEST.get('ignore_hide_rows', 0)
+    if ignore_hide_rows:
+      return 0
+
+    return self.isNotFiltered()
+
+  @lazyMethod
+  def isFiltered(self):
+    """Return True if listbox content filtered
+    """
+    return not self.isNotFiltered()
+
+  @lazyMethod
+  def isNotFiltered(self):
+    """Return False if listbox content filtered
+    """
+
     # Always display lines in report mode
     if self.isReportTreeMode():
       return 0
 
     # In domain mode, returns lines only if a domain is selected
-    if self.isDomainTreeMode():
-      if self.getDomainSelection():
+    domain_selection = self.getDomainSelection()
+    if domain_selection and (len(domain_selection) > 0):
       return 0
 
-    # ignore_hide_rows parameter force to display the content
-    ignore_hide_rows = REQUEST.get('ignore_hide_rows', 0)
-    if ignore_hide_rows:
+    # Always display lines in invert mode (filter by checked uids)
+    if self.getSelection().isInvertMode():
       return 0
 
     # we could hide rows only if missing in request or selection search criterions
     selection_params = self.getSelection().getParams()
+    REQUEST = self.request
 
     # Try to get workflow state parameter, in order to always allow worklist display
     # guess all column names from catalog schema

product/ERP5Form/Selection.py

@@ -433,7 +433,7 @@ class DomainSelection(Acquisition.Implicit, Traversable, Persistent):
           setattr(self, k, v)
 
   def __len__(self):
-    return len(self.domain_dict)
+    return len([1 for i in  self.domain_dict if i is not None])
 
   security.declarePublic('getCategoryList')
   def getCategoryList(self):