public boolean isAuthorized() {

    if (session.isVoAdmin(group.getVoId())
        || session.isVoObserver(group.getVoId())
        || session.isGroupAdmin(groupId)) {
      return true;
    } else {
      return false;
    }
  }
  /**
   * Prepares the GUI
   *
   * @param entity PerunEntity GROUP or VO
   * @param applicationType INITIAL | EXTENSION
   */
  protected void prepareGui(PerunEntity entity, String applicationType) {

    // trigger email verification as first if present in URL

    if (Location.getParameterMap().keySet().contains("m")
        && Location.getParameterMap().keySet().contains("i")) {

      String verifyI = Location.getParameter("i");
      String verifyM = Location.getParameter("m");

      if (verifyI != null && !verifyI.isEmpty() && verifyM != null && !verifyM.isEmpty()) {

        final SimplePanel verifContent = new SimplePanel();
        leftMenu.addItem(
            ApplicationMessages.INSTANCE.emailValidationMenuItem(),
            SmallIcons.INSTANCE.documentSignatureIcon(),
            verifContent);

        ValidateEmail request =
            new ValidateEmail(
                verifyI,
                verifyM,
                new JsonCallbackEvents() {
                  @Override
                  public void onLoadingStart() {
                    verifContent.clear();
                    verifContent.add(new AjaxLoaderImage());
                  }

                  @Override
                  public void onFinished(JavaScriptObject jso) {

                    BasicOverlayType obj = jso.cast();
                    if (obj.getBoolean() == true) {

                      verifContent.clear();
                      FlexTable ft = new FlexTable();
                      ft.setSize("100%", "300px");
                      ft.setHTML(
                          0,
                          0,
                          new Image(LargeIcons.INSTANCE.acceptIcon())
                              + "<h2>"
                              + ApplicationMessages.INSTANCE.emailValidationSuccess()
                              + "</h2>");
                      ft.getFlexCellFormatter()
                          .setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER);
                      ft.getFlexCellFormatter()
                          .setVerticalAlignment(0, 0, HasVerticalAlignment.ALIGN_MIDDLE);
                      verifContent.add(ft);

                    } else {

                      verifContent.clear();
                      FlexTable ft = new FlexTable();
                      ft.setSize("100%", "300px");
                      ft.setHTML(
                          0,
                          0,
                          new Image(LargeIcons.INSTANCE.deleteIcon())
                              + "<h2>"
                              + ApplicationMessages.INSTANCE.emailValidationFail()
                              + "</h2>");
                      ft.getFlexCellFormatter()
                          .setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER);
                      ft.getFlexCellFormatter()
                          .setVerticalAlignment(0, 0, HasVerticalAlignment.ALIGN_MIDDLE);
                      verifContent.add(ft);
                    }
                  }

                  @Override
                  public void onError(PerunError error) {
                    ((AjaxLoaderImage) verifContent.getWidget()).loadingError(error);
                  }
                });
        request.retrieveData();

        leftMenu.addLogoutItem();

        return;
      }
    }

    // group and extension is not allowed
    if (group != null && applicationType.equalsIgnoreCase("EXTENSION")) {

      RootLayoutPanel panel = RootLayoutPanel.get();
      panel.clear();
      FlexTable ft = new FlexTable();
      ft.setSize("100%", "300px");
      ft.setHTML(
          0,
          0,
          new Image(LargeIcons.INSTANCE.errorIcon())
              + "<h2>Error: "
              + ApplicationMessages.INSTANCE.groupMembershipCantBeExtended(
                  group.getName(), vo.getName())
              + "</h2>");
      ft.getFlexCellFormatter().setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER);
      ft.getFlexCellFormatter().setVerticalAlignment(0, 0, HasVerticalAlignment.ALIGN_MIDDLE);
      panel.add(ft);
      return;
    }

    // application form page
    ApplicationFormPage formPage = new ApplicationFormPage(vo, group, applicationType);
    // even user "not yet in perun" can have some applications sent (therefore display by session
    // info)
    UsersApplicationsPage appsPage = new UsersApplicationsPage();

    // if rt test
    if ("true".equals(Location.getParameter("rttest"))) {
      TestRtReportingTabItem tabItem = new TestRtReportingTabItem();
      Widget rtTab = tabItem.draw();
      leftMenu.addItem("RT test", SmallIcons.INSTANCE.settingToolsIcon(), rtTab);
    }

    // proper menu text
    String appMenuText = ApplicationMessages.INSTANCE.applicationFormForVo(vo.getName());
    if (group != null) {
      appMenuText = ApplicationMessages.INSTANCE.applicationFormForGroup(group.getName());
    }
    if (applicationType.equalsIgnoreCase("EXTENSION")) {
      appMenuText = ApplicationMessages.INSTANCE.membershipExtensionForVo(vo.getName());
      if (group != null) {
        appMenuText = ApplicationMessages.INSTANCE.membershipExtensionForGroup(group.getName());
      }
    }

    // load list of applications first if param in session
    if ("apps".equals(Location.getParameter("page"))) {
      Anchor a =
          leftMenu.addItem(
              ApplicationMessages.INSTANCE.applications(),
              SmallIcons.INSTANCE.applicationFromStorageIcon(),
              appsPage);
      leftMenu.addItem(appMenuText, SmallIcons.INSTANCE.applicationFormIcon(), formPage);
      a.fireEvent(new ClickEvent() {});
      // appsPage.menuClick(); // load list of apps
    } else {
      Anchor a = leftMenu.addItem(appMenuText, SmallIcons.INSTANCE.applicationFormIcon(), formPage);
      leftMenu.addItem(
          ApplicationMessages.INSTANCE.applications(),
          SmallIcons.INSTANCE.applicationFromStorageIcon(),
          appsPage);
      a.fireEvent(new ClickEvent() {});
      // formPage.menuClick(); // load application form
    }

    leftMenu.addLogoutItem();
  }
  public Widget draw() {

    this.titleWidget.setText(
        Utils.getStrippedStringWithEllipsis(group.getName()) + ": " + "ext sources");

    // main panel
    VerticalPanel vp = new VerticalPanel();
    vp.setSize("100%", "100%");

    // HORIZONTAL MENU
    TabMenu menu = new TabMenu();
    menu.addWidget(UiElements.getRefreshButton(this));

    // get VO resources
    final GetGroupExtSources extSources = new GetGroupExtSources(groupId);

    // refresh table event
    final JsonCallbackEvents events = JsonCallbackEvents.refreshTableEvents(extSources);

    // create ext source button
    CustomButton addButton =
        TabMenu.getPredefinedButton(
            ButtonType.ADD,
            true,
            ButtonTranslation.INSTANCE.addExtSource(),
            new ClickHandler() {
              public void onClick(ClickEvent event) {
                session
                    .getTabManager()
                    .addTabToCurrentTab(new AddGroupExtSourceTabItem(groupId), true);
              }
            });
    if (session.isVoAdmin(voId)) {
      menu.addWidget(addButton);
    }

    final CustomButton removeButton =
        TabMenu.getPredefinedButton(
            ButtonType.REMOVE, ButtonTranslation.INSTANCE.removeExtSource());
    removeButton.addClickHandler(
        new ClickHandler() {
          public void onClick(ClickEvent event) {
            final ArrayList<ExtSource> extSourcesToRemove = extSources.getTableSelectedList();
            String text =
                "Following external sources will be removed from Group. You won't be able to import members from them anymore.";
            UiElements.showDeleteConfirm(
                extSourcesToRemove,
                text,
                new ClickHandler() {
                  @Override
                  public void onClick(ClickEvent clickEvent) {
                    // TODO - SHOULD HAVE ONLY ONE CALLBACK TO CORE !!
                    for (int i = 0; i < extSourcesToRemove.size(); i++) {
                      RemoveExtSource request;
                      if (i == extSourcesToRemove.size() - 1) {
                        request =
                            new RemoveExtSource(
                                JsonCallbackEvents.disableButtonEvents(removeButton, events));
                      } else {
                        request =
                            new RemoveExtSource(
                                JsonCallbackEvents.disableButtonEvents(removeButton));
                      }
                      request.removeGroupExtSource(groupId, extSourcesToRemove.get(i).getId());
                    }
                  }
                });
          }
        });
    if (session.isVoAdmin(voId)) {
      menu.addWidget(removeButton);
    }

    // authorization - enable buttons for vo admin only.
    if (!session.isVoAdmin(voId)) {
      addButton.setEnabled(false);
      removeButton.setEnabled(false);
      extSources.setCheckable(false);
    }

    menu.addFilterWidget(
        new ExtendedSuggestBox(extSources.getOracle()),
        new PerunSearchEvent() {
          @Override
          public void searchFor(String text) {
            extSources.filterTable(text);
          }
        },
        "Filter external sources by name or type");

    // add menu to the main panel
    vp.add(menu);
    vp.setCellHeight(menu, "30px");

    CellTable<ExtSource> table = extSources.getTable();

    if (session.isVoAdmin(voId)) {
      removeButton.setEnabled(false);
      JsonUtils.addTableManagedButton(extSources, table, removeButton);
    }

    table.addStyleName("perun-table");
    table.setWidth("100%");
    ScrollPanel sp = new ScrollPanel(table);
    sp.addStyleName("perun-tableScrollPanel");

    vp.add(sp);

    session.getUiElements().resizePerunTable(sp, 350, this);

    this.contentWidget.setWidget(vp);

    return getWidget();
  }
 /**
  * Creates a tab instance
  *
  * @param group
  */
 public GroupExtSourcesTabItem(Group group) {
   this.group = group;
   this.groupId = group.getId();
   this.voId = group.getVoId();
 }
  public Widget draw() {

    titleWidget.setText(Utils.getStrippedStringWithEllipsis(group.getName()) + ": settings");

    // Main panel
    final VerticalPanel vp = new VerticalPanel();
    vp.setSize("100%", "100%");

    final TabMenu menu = new TabMenu();

    // Adds menu to the main panel
    vp.add(menu);
    vp.setCellHeight(menu, "30px");

    // IDS
    final Map<String, Integer> ids = new HashMap<String, Integer>();
    ids.put("group", groupId);

    // define GET ATTRIBUTES callback
    final GetAttributesV2 jsonCallback = new GetAttributesV2();
    jsonCallback.setIds(ids);
    if (!session.isGroupAdmin(groupId) && !session.isVoAdmin(group.getVoId()))
      jsonCallback.setCheckable(false);
    final CellTable<Attribute> table = jsonCallback.getEmptyTable();
    table.setWidth("100%");
    table.addStyleName("perun-table");
    ScrollPanel sp = new ScrollPanel(table);
    sp.addStyleName("perun-tableScrollPanel");
    session.getUiElements().resizePerunTable(sp, 350, this);
    vp.add(sp);

    // define GET RES. REQ ATTRIBUTES callback
    final GetResourceRequiredAttributesV2 reqAttrs =
        new GetResourceRequiredAttributesV2(
            null, JsonCallbackEvents.passDataToAnotherCallback(jsonCallback));

    // GROUP RESOURCES LISTBOX
    final ListBoxWithObjects<Resource> resourceDropDown = new ListBoxWithObjects<Resource>();
    resourceDropDown.setTitle(
        "By selecting a resource you will switch to either group-resource or member-resource setting (you must pick member too)");

    // fill table with group attributes on page load
    if (lastSelectedMemberId == 0 && lastSelectedResourceId == 0) {
      jsonCallback.retrieveData();
    } else {
      // load attrs by listbox selection after calls are done
      Scheduler.get()
          .scheduleFixedPeriod(
              new Scheduler.RepeatingCommand() {
                @Override
                public boolean execute() {
                  // load proper table if something was selected
                  if (resCallDone && memCallDone) {
                    // trigger change event
                    DomEvent.fireNativeEvent(Document.get().createChangeEvent(), resourceDropDown);
                    return false;
                  }
                  return true;
                }
              },
              200);
    }

    // fill resources listbox
    if (resources == null) {
      // get assigned resources
      GetAssignedResources resources =
          new GetAssignedResources(
              groupId,
              PerunEntity.GROUP,
              new JsonCallbackEvents() {
                public void onFinished(JavaScriptObject jso) {
                  ArrayList<Resource> resources = JsonUtils.jsoAsList(jso);
                  resourceDropDown.clear();
                  if (resources != null && !resources.isEmpty()) {
                    resources = new TableSorter<Resource>().sortByName(resources);
                    resourceDropDown.addNotSelectedOption();
                    for (int i = 0; i < resources.size(); i++) {
                      resourceDropDown.addItem(resources.get(i));
                      if (lastSelectedResourceId == resources.get(i).getId()) {
                        resourceDropDown.setSelected(resources.get(i), true);
                      }
                    }
                  } else {
                    resourceDropDown.addItem("No resources available");
                  }
                  resCallDone = true;
                }

                public void onError(PerunError error) {
                  resourceDropDown.clear();
                  resourceDropDown.addItem("Error while loading");
                  resCallDone = true;
                }

                public void onLoadingStart() {
                  resCallDone = false;
                  resourceDropDown.clear();
                  resourceDropDown.addItem("Loading...");
                }
              });
      resources.retrieveData();

    } else {
      // use predefined resources
      resourceDropDown.addNotSelectedOption();
      resources = new TableSorter<Resource>().sortByName(resources);
      resourceDropDown.addAllItems(resources);
    }

    // GROUP MEMBERS LISTBOX
    final ListBoxWithObjects<RichMember> membersDropDown = new ListBoxWithObjects<RichMember>();
    membersDropDown.setTitle(
        "By selecting a member you will switch to either member or member-resource settings (you must pick resource too)");

    // fill members listbox
    GetGroupRichMembers members =
        new GetGroupRichMembers(
            groupId,
            new JsonCallbackEvents() {
              public void onFinished(JavaScriptObject jso) {
                ArrayList<RichMember> mems = JsonUtils.jsoAsList(jso);
                membersDropDown.clear();
                if (mems != null && !mems.isEmpty()) {
                  mems = new TableSorter<RichMember>().sortByName(mems);
                  membersDropDown.addNotSelectedOption();
                  for (int i = 0; i < mems.size(); i++) {
                    membersDropDown.addItem(mems.get(i));
                    if (mems.get(i).getId() == lastSelectedMemberId) {
                      membersDropDown.setSelected(mems.get(i), true);
                    }
                  }
                } else {
                  membersDropDown.addItem("No members available");
                }
                memCallDone = true;
              }

              public void onError(PerunError error) {
                membersDropDown.clear();
                membersDropDown.addItem("Error while loading");
                memCallDone = true;
              }

              public void onLoadingStart() {
                memCallDone = false;
                membersDropDown.clear();
                membersDropDown.addItem("Loading...");
              }
            });
    members.retrieveData();

    // CHECKBOXES "FOR ALL MEMBERS"
    final CheckBox memChb = new CheckBox();
    memChb.setText("To all members");
    memChb.setVisible(false);
    memChb.setTitle("Uses this setting for all members of this group.");
    memChb.setValue(false);

    // SAVE CHANGES BUTTON
    final CustomButton saveChangesButton =
        TabMenu.getPredefinedButton(
            ButtonType.SAVE, ButtonTranslation.INSTANCE.saveChangesInAttributes());
    if (!session.isGroupAdmin(groupId) && !session.isVoAdmin(group.getVoId()))
      saveChangesButton.setEnabled(false);

    // click handler to save group and member-user attributes
    final ClickHandler saveAttrsClickHandler =
        new ClickHandler() {
          public void onClick(ClickEvent event) {
            final ArrayList<Attribute> list = jsonCallback.getTableSelectedList();

            if (UiElements.cantSaveEmptyListDialogBox(list)) {

              // refresh table and disable button a event for GetAttributes
              final JsonCallbackEvents events =
                  JsonCallbackEvents.disableButtonEvents(
                      saveChangesButton, JsonCallbackEvents.refreshTableEvents(jsonCallback));

              if (memChb.getValue() == true) {
                // to all members selected
                UiElements.generateInfo(
                    WidgetTranslation.INSTANCE.saveConfirmTitle(),
                    "Same value(s) for selected attribute(s) will be set to ALL members of group.",
                    new ClickHandler() {
                      public void onClick(ClickEvent event) {
                        ArrayList<RichMember> memList = membersDropDown.getAllObjects();
                        for (int i = 0; i < memList.size(); i++) {
                          SetAttributes request = new SetAttributes();
                          if (i == memList.size() - 1) {
                            request.setEvents(events);
                          } else {
                            request.setEvents(
                                JsonCallbackEvents.disableButtonEvents(saveChangesButton));
                          }
                          Map<String, Integer> ids = new HashMap<String, Integer>();
                          ids.put("member", memList.get(i).getId());
                          ids.put("workWithUserAttributes", 1);
                          request.setAttributes(ids, list);
                        }
                      }
                    });
              } else {
                // just one group / memeber
                SetAttributes request = new SetAttributes(events);
                request.setAttributes(jsonCallback.getIds(), list);
              }
            }
          }
        };

    // click handler to save required attributes
    final ClickHandler saveReqAttrsClickHandler =
        new ClickHandler() {
          public void onClick(ClickEvent event) {
            final ArrayList<Attribute> list = jsonCallback.getTableSelectedList();
            // check if not empty
            if (UiElements.cantSaveEmptyListDialogBox(list)) {

              // refresh table and disable button a event for GetResourceRequiredAttributes
              final JsonCallbackEvents events =
                  JsonCallbackEvents.disableButtonEvents(
                      saveChangesButton,
                      new JsonCallbackEvents() {
                        public void onFinished(JavaScriptObject jso) {
                          jsonCallback.clearTable();
                          // set back resourceToGetServicesFrom
                          Map<String, Integer> ids = reqAttrs.getIds();
                          if (ids.containsKey("resource")) {
                            ids.put("resourceToGetServicesFrom", ids.get("resource"));
                          }
                          if (ids.containsKey("user")) {
                            ids.put("workWithUserAttributes", 1);
                          }
                          if (ids.containsKey("resource") && ids.containsKey("group")) {
                            ids.put("workWithGroupAttributes", 1);
                          }
                          reqAttrs.setIds(ids);
                          reqAttrs.retrieveData();
                        }
                      });

              final SetAttributes request = new SetAttributes();

              if (memChb.getValue() == true) {
                // to all members selected
                UiElements.generateInfo(
                    WidgetTranslation.INSTANCE.saveConfirmTitle(),
                    "Same value(s) for selected attribute(s) will be set to ALL members of group.",
                    new ClickHandler() {
                      public void onClick(ClickEvent event) {
                        ArrayList<RichMember> memList = membersDropDown.getAllObjects();
                        for (int i = 0; i < memList.size(); i++) {
                          if (i == 0) {
                            events.onLoadingStart();
                          } // trigger disable button if first
                          Map<String, Integer> ids = new HashMap<String, Integer>();
                          ids.put("member", memList.get(i).getId());
                          ids.put("user", memList.get(i).getUserId());
                          ids.put("resource", resourceDropDown.getSelectedObject().getId());
                          ids.put("facility", resourceDropDown.getSelectedObject().getFacilityId());
                          if (i == memList.size() - 1) {
                            request.setEvents(events);
                          } // set events to last to get refresh and button enable
                          request.setAttributes(ids, list);
                        }
                      }
                    });
              } else {
                // group or member
                request.setEvents(events); // disable button events
                request.setAttributes(reqAttrs.getIds(), list);
              }
            }
          }
        };

    // REMOVE BUTTON
    final CustomButton removeButton =
        TabMenu.getPredefinedButton(
            ButtonType.REMOVE, ButtonTranslation.INSTANCE.removeAttributes());
    if (!session.isGroupAdmin(groupId) && !session.isVoAdmin(group.getVoId()))
      removeButton.setEnabled(false);

    // click handler to remove group and member-user attributes
    final ClickHandler removeAttrsClickHandler =
        new ClickHandler() {
          public void onClick(ClickEvent event) {
            final ArrayList<Attribute> list = jsonCallback.getTableSelectedList();
            if (UiElements.cantSaveEmptyListDialogBox(list)) {

              // refresh table and disable button a event for GetAttributes
              final JsonCallbackEvents events =
                  JsonCallbackEvents.disableButtonEvents(
                      removeButton, JsonCallbackEvents.refreshTableEvents(jsonCallback));

              final RemoveAttributes request = new RemoveAttributes();

              if (memChb.getValue() == true) {
                // to all members selected
                UiElements.generateInfo(
                    WidgetTranslation.INSTANCE.deleteConfirmTitle(),
                    "Selected attribute(s) will be removed from ALL members of group.",
                    new ClickHandler() {
                      public void onClick(ClickEvent event) {
                        ArrayList<RichMember> memList = membersDropDown.getAllObjects();
                        for (int i = 0; i < memList.size(); i++) {
                          if (i == 0) {
                            events.onLoadingStart();
                          } // trigger disable button if first
                          Map<String, Integer> ids = new HashMap<String, Integer>();
                          ids.put("member", memList.get(i).getId());
                          ids.put("workWithUserAttributes", 1);
                          if (i == memList.size() - 1) {
                            request.setEvents(events);
                          } // set events to last to get refresh and button enable
                          request.removeAttributes(ids, list);
                        }
                      }
                    });
              } else {
                // just one group / memeber
                request.setEvents(events); // disable button events
                request.removeAttributes(jsonCallback.getIds(), list);
              }
            }
          }
        };

    // click handler to remove ResourceRequiredAttributes
    final ClickHandler removeReqAttrsClickHandler =
        new ClickHandler() {
          public void onClick(ClickEvent event) {
            final ArrayList<Attribute> list = jsonCallback.getTableSelectedList();
            if (UiElements.cantSaveEmptyListDialogBox(list)) {

              // refresh table and disable button a event for GetAttributes
              final JsonCallbackEvents events =
                  JsonCallbackEvents.disableButtonEvents(
                      removeButton,
                      new JsonCallbackEvents() {
                        public void onFinished(JavaScriptObject jso) {
                          jsonCallback.clearTable();
                          // set back resourceToGetServicesFrom
                          Map<String, Integer> ids = reqAttrs.getIds();
                          if (ids.containsKey("resource")) {
                            ids.put("resourceToGetServicesFrom", ids.get("resource"));
                          }
                          if (ids.containsKey("user")) {
                            ids.put("workWithUserAttributes", 1);
                          }
                          if (ids.containsKey("resource") && ids.containsKey("group")) {
                            ids.put("workWithGroupAttributes", 1);
                          }
                          reqAttrs.setIds(ids);
                          reqAttrs.retrieveData();
                        }
                      });

              final RemoveAttributes request = new RemoveAttributes();

              if (memChb.getValue() == true) {
                // to all members selected
                UiElements.generateInfo(
                    WidgetTranslation.INSTANCE.deleteConfirmTitle(),
                    "Selected attribute(s) will be removed from ALL members of group.",
                    new ClickHandler() {
                      @Override
                      public void onClick(ClickEvent event) {
                        ArrayList<RichMember> memList = membersDropDown.getAllObjects();
                        for (int i = 0; i < memList.size(); i++) {
                          if (i == 0) {
                            events.onLoadingStart();
                          } // trigger disable button if first
                          Map<String, Integer> ids = new HashMap<String, Integer>();
                          ids.put("member", memList.get(i).getId());
                          ids.put("user", memList.get(i).getUserId());
                          ids.put("resource", resourceDropDown.getSelectedObject().getId());
                          ids.put("facility", resourceDropDown.getSelectedObject().getFacilityId());
                          if (i == memList.size() - 1) {
                            request.setEvents(events);
                          } // set events to last to get refresh and button enable
                          request.removeAttributes(ids, list);
                        }
                      }
                    });
              } else {
                // just one group / member
                request.setEvents(events); // disable button events
                request.removeAttributes(reqAttrs.getIds(), list);
              }
            }
          }
        };

    // SET NEW ATTR BUTTON
    final CustomButton setNewAttributeButton =
        TabMenu.getPredefinedButton(ButtonType.ADD, ButtonTranslation.INSTANCE.setNewAttributes());
    if (!session.isGroupAdmin(groupId) && !session.isVoAdmin(group.getVoId()))
      setNewAttributeButton.setEnabled(false);
    // click handler
    setNewAttributeButton.addClickHandler(
        new ClickHandler() {
          public void onClick(ClickEvent event) {
            ids.clear();
            if (resourceDropDown.getSelectedIndex() > 0) {
              if (membersDropDown.getSelectedIndex() > 0) {
                ids.put("member", membersDropDown.getSelectedObject().getId());
                ids.put("user", membersDropDown.getSelectedObject().getUserId());
                ids.put("resource", resourceDropDown.getSelectedObject().getId());
                ids.put("facility", resourceDropDown.getSelectedObject().getFacilityId());
              } else {
                ids.put("resource", resourceDropDown.getSelectedObject().getId());
                ids.put("group", groupId);
                ids.put("workWithGroupAttributes", 1);
              }
            } else {
              if (membersDropDown.getSelectedIndex() > 0) {
                ids.put("member", membersDropDown.getSelectedObject().getId());
                ids.put("user", membersDropDown.getSelectedObject().getUserId());
              } else {
                ids.put("group", groupId);
              }
            }
            session
                .getTabManager()
                .addTabToCurrentTab(new SetNewAttributeTabItem(ids, jsonCallback.getList()), true);
          }
        });

    // ClickHandlersRegistration - save onClicks for GetAttributes
    final ArrayList<HandlerRegistration> clickHandlers = new ArrayList<HandlerRegistration>();
    clickHandlers.add(saveChangesButton.addClickHandler(saveAttrsClickHandler));
    clickHandlers.add(removeButton.addClickHandler(removeAttrsClickHandler));

    // DEFINE CHANGE HANDLER FOR ALL DROP DOWNS
    ChangeHandler changeHandler =
        new ChangeHandler() {
          public void onChange(ChangeEvent event) {

            int resIndex = resourceDropDown.getSelectedIndex();
            int memIndex = membersDropDown.getSelectedIndex();

            // no resource or member selected
            if (resIndex == 0 && memIndex == 0) {
              lastSelectedMemberId = 0;
              lastSelectedResourceId = 0;
              memChb.setValue(false);
              memChb.setVisible(false);
              jsonCallback.clearTable();
              ids.clear();
              ids.put("group", groupId);
              jsonCallback.setIds(ids);
              jsonCallback.retrieveData();
              for (HandlerRegistration handler : clickHandlers) {
                if (handler != null) {
                  handler.removeHandler();
                }
              }
              clickHandlers.add(saveChangesButton.addClickHandler(saveAttrsClickHandler));
              clickHandlers.add(removeButton.addClickHandler(removeAttrsClickHandler));
            }
            // no resource but member selected
            if (resIndex == 0 && memIndex > 0) {
              lastSelectedMemberId = membersDropDown.getSelectedObject().getId();
              lastSelectedResourceId = 0;
              memChb.setValue(false);
              memChb.setVisible(true);
              jsonCallback.clearTable();
              ids.clear();
              ids.put("member", membersDropDown.getSelectedObject().getId());
              ids.put("workWithUserAttributes", 1);
              jsonCallback.setIds(ids);
              jsonCallback.retrieveData();
              for (HandlerRegistration handler : clickHandlers) {
                if (handler != null) {
                  handler.removeHandler();
                }
              }
              clickHandlers.add(saveChangesButton.addClickHandler(saveAttrsClickHandler));
              clickHandlers.add(removeButton.addClickHandler(removeAttrsClickHandler));
            }
            // resource and no member selected
            if (resIndex > 0 && memIndex == 0) {
              lastSelectedMemberId = 0;
              lastSelectedResourceId = resourceDropDown.getSelectedObject().getId();
              memChb.setValue(false);
              memChb.setVisible(false);
              jsonCallback.clearTable();
              ids.clear();
              ids.put("group", groupId);
              ids.put("resource", resourceDropDown.getSelectedObject().getId());
              ids.put("resourceToGetServicesFrom", ids.get("resource"));
              ids.put("workWithGroupAttributes", 1);
              reqAttrs.setIds(ids);
              reqAttrs.retrieveData();
              // set ids back to make saveChanges work
              ids.remove("resourceToGetServicesFrom");
              reqAttrs.setIds(ids);
              for (HandlerRegistration handler : clickHandlers) {
                if (handler != null) {
                  handler.removeHandler();
                }
              }
              clickHandlers.add(saveChangesButton.addClickHandler(saveReqAttrsClickHandler));
              clickHandlers.add(removeButton.addClickHandler(removeReqAttrsClickHandler));
            }
            // resource and member selected
            if (resIndex > 0 && memIndex > 0) {
              lastSelectedMemberId = membersDropDown.getSelectedObject().getId();
              lastSelectedResourceId = resourceDropDown.getSelectedObject().getId();
              memChb.setValue(false);
              memChb.setVisible(true);
              jsonCallback.clearTable();
              ids.clear();
              ids.put("resource", resourceDropDown.getSelectedObject().getId());
              ids.put("resourceToGetServicesFrom", ids.get("resource"));
              ids.put("member", membersDropDown.getSelectedObject().getId());
              ids.put("workWithUserAttributes", 1);
              reqAttrs.setIds(ids);
              reqAttrs.retrieveData();
              // set ids back to make saveChanges work
              ids.clear();
              ids.put("member", membersDropDown.getSelectedObject().getId());
              ids.put("user", membersDropDown.getSelectedObject().getUser().getId());
              ids.put("facility", resourceDropDown.getSelectedObject().getFacilityId());
              ids.put("resource", resourceDropDown.getSelectedObject().getId());
              reqAttrs.setIds(ids);
              for (HandlerRegistration handler : clickHandlers) {
                if (handler != null) {
                  handler.removeHandler();
                }
              }
              clickHandlers.add(saveChangesButton.addClickHandler(saveReqAttrsClickHandler));
              clickHandlers.add(removeButton.addClickHandler(removeReqAttrsClickHandler));
            }
          }
        };

    // ADD CHANGE HANDLERS TO DROP-DOWN MENUS
    resourceDropDown.addChangeHandler(changeHandler);
    membersDropDown.addChangeHandler(changeHandler);

    // PUT ELEMENTS IN MENU
    menu.addWidget(saveChangesButton);
    // menu.addWidget(resChb);
    menu.addWidget(memChb);
    menu.addWidget(setNewAttributeButton);
    menu.addWidget(removeButton);
    menu.addWidget(new HTML("<strong>Resources:</strong>"));
    menu.addWidget(resourceDropDown);
    menu.addWidget(new HTML("<strong>Members:</strong>"));
    menu.addWidget(membersDropDown);

    this.contentWidget.setWidget(vp);

    return getWidget();
  }
 /**
  * Creates a tab instance
  *
  * @param group
  */
 public GroupSettingsTabItem(Group group) {
   this.group = group;
   this.groupId = group.getId();
 }