Shows newly created groups when using 'Hide offline contacts' filter.

src/net/java/sip/communicator/impl/gui/main/contactlist/PresenceFilter.java

@@ -146,7 +146,8 @@ private boolean isMatching(MetaContact metaContact)
      */
     private boolean isMatching(MetaContactGroup metaGroup)
     {
-        return (isShowOffline || metaGroup.countOnlineChildContacts() > 0)
+        return (isShowOffline || metaGroup.countOnlineChildContacts() > 0
+                              || MetaContactListSource.isNewGroup(metaGroup))
                 ? true
                 : false;
     }

src/net/java/sip/communicator/impl/gui/main/contactlist/contactsource/MetaContactListSource.java

@@ -46,6 +46,13 @@ public class MetaContactListSource
     public static final String UI_GROUP_DATA_KEY
         = MetaUIGroup.class.getName() + ".uiGroupDescriptor";
 
+    /**
+     * The data key of the MetaGroupDescriptor object used to store whether
+     * the group is newly created by user.
+     */
+    private static final String GROUP_IS_NEW_KEY
+        = MetaUIGroup.class.getName() + ".groupIsNew";
+
     /**
      * The initial result count below which we insert all filter results
      * directly to the contact list without firing events.
@@ -84,6 +91,17 @@ public static UIGroup getUIGroup(MetaContactGroup metaGroup)
         return (UIGroup) metaGroup.getData(UI_GROUP_DATA_KEY);
     }
 
+    /**
+     * Returns whether <tt>MetaContactGroup</tt> is newly created.
+     * @param metaGroup the <tt>MetaContactGroup</tt>, which we will check.
+     * @return whether the <tt>MetaContactGroup</tt> is newly created.
+     */
+    public static boolean isNewGroup(MetaContactGroup metaGroup)
+    {
+        Object data = metaGroup.getData(GROUP_IS_NEW_KEY);
+        return data == null ? false : (Boolean)data;
+    }
+
     /**
      * Creates a <tt>UIContact</tt> for the given <tt>metaContact</tt>.
      * @param metaContact the <tt>MetaContact</tt> for which we would like to
@@ -508,6 +526,12 @@ public void metaContactGroupAdded(MetaContactGroupEvent evt)
             uiGroup = MetaContactListSource.createUIGroup(metaGroup);
         }
 
+        // mark group as newly created
+        if(metaGroup.countChildContacts() == 0)
+        {
+            metaGroup.setData(GROUP_IS_NEW_KEY, Boolean.TRUE);
+        }
+
         ContactListFilter currentFilter
             = GuiActivator.getContactList().getCurrentFilter();