org.argeo.cms.e4/src/org/argeo/cms/e4/users/GroupEditor.java

   1 /*
   2  * Copyright (C) 2007-2012 Argeo GmbH
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.cms.e4.users;
  17
  18 import static org.argeo.cms.util.UserAdminUtils.setProperty;
  19 import static org.argeo.naming.LdapAttrs.businessCategory;
  20 import static org.argeo.naming.LdapAttrs.description;
  21 import static org.argeo.node.NodeInstance.WORKGROUP;
  22
  23 import java.util.ArrayList;
  24 import java.util.Iterator;
  25 import java.util.List;
  26
  27 import javax.annotation.PreDestroy;
  28 import javax.inject.Inject;
  29 import javax.jcr.Node;
  30 import javax.jcr.Repository;
  31 import javax.jcr.RepositoryException;
  32 import javax.jcr.Session;
  33 import javax.naming.InvalidNameException;
  34 import javax.naming.ldap.LdapName;
  35 import javax.transaction.UserTransaction;
  36
  37 import org.argeo.cms.ArgeoNames;
  38 import org.argeo.cms.CmsException;
  39 import org.argeo.cms.e4.users.providers.CommonNameLP;
  40 import org.argeo.cms.e4.users.providers.MailLP;
  41 import org.argeo.cms.e4.users.providers.RoleIconLP;
  42 import org.argeo.cms.e4.users.providers.UserFilter;
  43 import org.argeo.cms.ui.eclipse.forms.AbstractFormPart;
  44 import org.argeo.cms.ui.eclipse.forms.IManagedForm;
  45 import org.argeo.cms.util.CmsUtils;
  46 import org.argeo.cms.util.UserAdminUtils;
  47 import org.argeo.eclipse.ui.ColumnDefinition;
  48 import org.argeo.eclipse.ui.EclipseUiUtils;
  49 import org.argeo.eclipse.ui.parts.LdifUsersTable;
  50 import org.argeo.jcr.JcrUtils;
  51 import org.argeo.naming.LdapAttrs;
  52 import org.argeo.node.NodeInstance;
  53 import org.argeo.node.NodeUtils;
  54 import org.eclipse.e4.ui.workbench.modeling.EPartService;
  55 import org.eclipse.jface.action.Action;
  56 import org.eclipse.jface.action.ToolBarManager;
  57 import org.eclipse.jface.dialogs.MessageDialog;
  58 import org.eclipse.jface.resource.ImageDescriptor;
  59 import org.eclipse.jface.viewers.ISelection;
  60 import org.eclipse.jface.viewers.IStructuredSelection;
  61 import org.eclipse.jface.viewers.TableViewer;
  62 import org.eclipse.jface.viewers.ViewerDropAdapter;
  63 import org.eclipse.swt.SWT;
  64 import org.eclipse.swt.dnd.DND;
  65 import org.eclipse.swt.dnd.DropTargetEvent;
  66 import org.eclipse.swt.dnd.TextTransfer;
  67 import org.eclipse.swt.dnd.Transfer;
  68 import org.eclipse.swt.dnd.TransferData;
  69 import org.eclipse.swt.events.ModifyListener;
  70 import org.eclipse.swt.events.SelectionAdapter;
  71 import org.eclipse.swt.events.SelectionEvent;
  72 import org.eclipse.swt.layout.GridData;
  73 import org.eclipse.swt.layout.GridLayout;
  74 import org.eclipse.swt.widgets.Composite;
  75 import org.eclipse.swt.widgets.Label;
  76 import org.eclipse.swt.widgets.Link;
  77 import org.eclipse.swt.widgets.Shell;
  78 import org.eclipse.swt.widgets.Text;
  79 import org.eclipse.swt.widgets.ToolBar;
  80 import org.osgi.service.useradmin.Group;
  81 import org.osgi.service.useradmin.Role;
  82 //import org.eclipse.ui.forms.AbstractFormPart;
  83 //import org.eclipse.ui.forms.IManagedForm;
  84 //import org.eclipse.ui.forms.SectionPart;
  85 //import org.eclipse.ui.forms.editor.FormEditor;
  86 //import org.eclipse.ui.forms.editor.FormPage;
  87 //import org.eclipse.ui.forms.widgets.FormToolkit;
  88 //import org.eclipse.ui.forms.widgets.ScrolledForm;
  89 //import org.eclipse.ui.forms.widgets.Section;
  90 import org.osgi.service.useradmin.User;
  91 import org.osgi.service.useradmin.UserAdmin;
  92 import org.osgi.service.useradmin.UserAdminEvent;
  93
  94 /** Display/edit main properties of a given group */
  95 public class GroupEditor extends AbstractRoleEditor implements ArgeoNames {
  96         // final static String ID = "GroupEditor.mainPage";
  97
  98         @Inject
  99         private EPartService partService;
 100
 101         // private final UserEditor editor;
 102         @Inject
 103         private Repository repository;
 104         @Inject
 105         private NodeInstance nodeInstance;
 106         // private final UserAdminWrapper userAdminWrapper;
 107         private Session session;
 108
 109         // public GroupMainPage(FormEditor editor, UserAdminWrapper userAdminWrapper,
 110         // Repository repository,
 111         // NodeInstance nodeInstance) {
 112         // super(editor, ID, "Main");
 113         // try {
 114         // session = repository.login();
 115         // } catch (RepositoryException e) {
 116         // throw new CmsException("Cannot retrieve session of in MainGroupPage
 117         // constructor", e);
 118         // }
 119         // this.editor = (UserEditor) editor;
 120         // this.userAdminWrapper = userAdminWrapper;
 121         // this.nodeInstance = nodeInstance;
 122         // }
 123
 124         // protected void createFormContent(final IManagedForm mf) {
 125         // ScrolledForm form = mf.getForm();
 126         // Composite body = form.getBody();
 127         // GridLayout mainLayout = new GridLayout();
 128         // body.setLayout(mainLayout);
 129         // Group group = (Group) editor.getDisplayedUser();
 130         // appendOverviewPart(body, group);
 131         // appendMembersPart(body, group);
 132         // }
 133
 134         @Override
 135         protected void createUi(Composite parent) {
 136                 try {
 137                         session = repository.login();
 138                 } catch (RepositoryException e) {
 139                         throw new CmsException("Cannot retrieve session", e);
 140                 }
 141                 // ScrolledForm form = mf.getForm();
 142                 // Composite body = form.getBody();
 143                 // Composite body = new Composite(parent, SWT.NONE);
 144                 Composite body = parent;
 145                 GridLayout mainLayout = new GridLayout();
 146                 body.setLayout(mainLayout);
 147                 Group group = (Group) getDisplayedUser();
 148                 appendOverviewPart(body, group);
 149                 appendMembersPart(body, group);
 150         }
 151
 152         @PreDestroy
 153         public void dispose() {
 154                 JcrUtils.logoutQuietly(session);
 155                 super.dispose();
 156         }
 157
 158         /** Creates the general section */
 159         protected void appendOverviewPart(final Composite parent, final Group group) {
 160                 Composite body = new Composite(parent, SWT.NONE);
 161                 // GridLayout layout = new GridLayout(5, false);
 162                 GridLayout layout = new GridLayout(2, false);
 163                 body.setLayout(layout);
 164                 body.setLayoutData(CmsUtils.fillWidth());
 165
 166                 String cn = UserAdminUtils.getProperty(group, LdapAttrs.cn.name());
 167                 createReadOnlyLT(body, "Name", cn);
 168                 createReadOnlyLT(body, "DN", group.getName());
 169                 createReadOnlyLT(body, "Domain", UserAdminUtils.getDomainName(group));
 170
 171                 // Description
 172                 Label descLbl = new Label(body, SWT.LEAD);
 173                 descLbl.setFont(EclipseUiUtils.getBoldFont(body));
 174                 descLbl.setText("Description");
 175                 descLbl.setLayoutData(new GridData(SWT.LEAD, SWT.CENTER, true, false, 2, 1));
 176                 final Text descTxt = new Text(body, SWT.LEAD | SWT.MULTI | SWT.WRAP | SWT.BORDER);
 177                 GridData gd = EclipseUiUtils.fillWidth();
 178                 gd.heightHint = 50;
 179                 gd.horizontalSpan = 2;
 180                 descTxt.setLayoutData(gd);
 181
 182                 // Mark as workgroup
 183                 Link markAsWorkgroupLk = new Link(body, SWT.NONE);
 184                 markAsWorkgroupLk.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, false, false, 2, 1));
 185
 186                 // create form part (controller)
 187                 final AbstractFormPart part = new AbstractFormPart() {
 188
 189                         private MainInfoListener listener;
 190
 191                         @Override
 192                         public void initialize(IManagedForm form) {
 193                                 super.initialize(form);
 194                                 listener = new MainInfoListener(parent.getDisplay(), this);
 195                                 userAdminWrapper.addListener(listener);
 196                         }
 197
 198                         @Override
 199                         public void dispose() {
 200                                 userAdminWrapper.removeListener(listener);
 201                                 super.dispose();
 202                         }
 203
 204                         public void commit(boolean onSave) {
 205                                 // group.getProperties().put(LdapAttrs.description.name(), descTxt.getText());
 206                                 setProperty(group, description, descTxt.getText());
 207                                 super.commit(onSave);
 208                         }
 209
 210                         @Override
 211                         public void refresh() {
 212                                 // dnTxt.setText(group.getName());
 213                                 // cnTxt.setText(UserAdminUtils.getProperty(group, LdapAttrs.cn.name()));
 214                                 descTxt.setText(UserAdminUtils.getProperty(group, LdapAttrs.description.name()));
 215                                 Node workgroupHome = NodeUtils.getGroupHome(session, cn);
 216                                 if (workgroupHome == null)
 217                                         markAsWorkgroupLk.setText("<a>Mark as workgroup</a>");
 218                                 else
 219                                         markAsWorkgroupLk.setText("Configured as workgroup");
 220                                 parent.layout(true, true);
 221                                 super.refresh();
 222                         }
 223                 };
 224
 225                 markAsWorkgroupLk.addSelectionListener(new SelectionAdapter() {
 226                         private static final long serialVersionUID = -6439340898096365078L;
 227
 228                         @Override
 229                         public void widgetSelected(SelectionEvent e) {
 230
 231                                 boolean confirmed = MessageDialog.openConfirm(parent.getShell(), "Mark as workgroup",
 232                                                 "Are you sure you want to mark " + cn + " as being a workgroup? ");
 233                                 if (confirmed) {
 234                                         Node workgroupHome = NodeUtils.getGroupHome(session, cn);
 235                                         if (workgroupHome != null)
 236                                                 return; // already marked as workgroup, do nothing
 237                                         else
 238                                                 try {
 239                                                         // improve transaction management
 240                                                         userAdminWrapper.beginTransactionIfNeeded();
 241                                                         nodeInstance.createWorkgroup(new LdapName(group.getName()));
 242                                                         setProperty(group, businessCategory, WORKGROUP);
 243                                                         userAdminWrapper.commitOrNotifyTransactionStateChange();
 244                                                         userAdminWrapper
 245                                                                         .notifyListeners(new UserAdminEvent(null, UserAdminEvent.ROLE_CHANGED, group));
 246                                                         part.refresh();
 247                                                 } catch (InvalidNameException e1) {
 248                                                         throw new CmsException("Cannot create Workgroup for " + group.toString(), e1);
 249                                                 }
 250
 251                                 }
 252                         }
 253                 });
 254
 255                 ModifyListener defaultListener = new FormPartML(part);
 256                 descTxt.addModifyListener(defaultListener);
 257                 getManagedForm().addPart(part);
 258         }
 259
 260         /** Filtered table with members. Has drag and drop ability */
 261         protected void appendMembersPart(Composite parent, Group group) {
 262                 // Section section = tk.createSection(parent, Section.TITLE_BAR);
 263                 // section.setText("Members");
 264                 // section.setLayoutData(EclipseUiUtils.fillAll());
 265
 266                 Composite body = new Composite(parent, SWT.BORDER);
 267                 body.setLayout(new GridLayout());
 268                 // section.setClient(body);
 269                 body.setLayoutData(EclipseUiUtils.fillAll());
 270
 271                 // Define the displayed columns
 272                 List<ColumnDefinition> columnDefs = new ArrayList<ColumnDefinition>();
 273                 columnDefs.add(new ColumnDefinition(new RoleIconLP(), "", 0, 24));
 274                 columnDefs.add(new ColumnDefinition(new CommonNameLP(), "Name", 150));
 275                 columnDefs.add(new ColumnDefinition(new MailLP(), "Mail", 150));
 276                 // columnDefs.add(new ColumnDefinition(new UserNameLP(), "Distinguished Name",
 277                 // 240));
 278
 279                 // Create and configure the table
 280                 LdifUsersTable userViewerCmp = new MyUserTableViewer(body, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL,
 281                                 userAdminWrapper.getUserAdmin());
 282
 283                 userViewerCmp.setColumnDefinitions(columnDefs);
 284                 userViewerCmp.populate(true, false);
 285                 userViewerCmp.setLayoutData(EclipseUiUtils.fillAll());
 286
 287                 // Controllers
 288                 TableViewer userViewer = userViewerCmp.getTableViewer();
 289                 userViewer.addDoubleClickListener(new UserTableDefaultDClickListener(partService));
 290                 int operations = DND.DROP_COPY | DND.DROP_MOVE;
 291                 Transfer[] tt = new Transfer[] { TextTransfer.getInstance() };
 292                 userViewer.addDropSupport(operations, tt,
 293                                 new GroupDropListener(userAdminWrapper, userViewerCmp, (Group) getDisplayedUser()));
 294
 295                 AbstractFormPart part = new GroupMembersPart(userViewerCmp);
 296                 getManagedForm().addPart(part);
 297
 298                 // remove button
 299                 // addRemoveAbility(toolBarManager, userViewerCmp.getTableViewer(), group);
 300                 Action action = new RemoveMembershipAction(userViewer, group, "Remove selected items from this group",
 301                                 SecurityAdminImages.ICON_REMOVE_DESC);
 302
 303                 ToolBarManager toolBarManager = new ToolBarManager(SWT.FLAT);
 304                 ToolBar toolBar = toolBarManager.createControl(body);
 305                 toolBar.setLayoutData(CmsUtils.fillWidth());
 306
 307                 toolBarManager.add(action);
 308                 toolBarManager.update(true);
 309
 310         }
 311
 312         // private LdifUsersTable createMemberPart(Composite parent, Group group) {
 313         //
 314         // // Define the displayed columns
 315         // List<ColumnDefinition> columnDefs = new ArrayList<ColumnDefinition>();
 316         // columnDefs.add(new ColumnDefinition(new RoleIconLP(), "", 0, 24));
 317         // columnDefs.add(new ColumnDefinition(new CommonNameLP(), "Name", 150));
 318         // columnDefs.add(new ColumnDefinition(new MailLP(), "Mail", 150));
 319         // // columnDefs.add(new ColumnDefinition(new UserNameLP(), "Distinguished
 320         // Name",
 321         // // 240));
 322         //
 323         // // Create and configure the table
 324         // LdifUsersTable userViewerCmp = new MyUserTableViewer(parent, SWT.MULTI |
 325         // SWT.H_SCROLL | SWT.V_SCROLL,
 326         // userAdminWrapper.getUserAdmin());
 327         //
 328         // userViewerCmp.setColumnDefinitions(columnDefs);
 329         // userViewerCmp.populate(true, false);
 330         // userViewerCmp.setLayoutData(EclipseUiUtils.fillAll());
 331         //
 332         // // Controllers
 333         // TableViewer userViewer = userViewerCmp.getTableViewer();
 334         // userViewer.addDoubleClickListener(new
 335         // UserTableDefaultDClickListener(partService));
 336         // int operations = DND.DROP_COPY | DND.DROP_MOVE;
 337         // Transfer[] tt = new Transfer[] { TextTransfer.getInstance() };
 338         // userViewer.addDropSupport(operations, tt,
 339         // new GroupDropListener(userAdminWrapper, userViewerCmp, (Group)
 340         // getDisplayedUser()));
 341         //
 342         // // userViewerCmp.refresh();
 343         // return userViewerCmp;
 344         // }
 345
 346         // Local viewers
 347         private class MyUserTableViewer extends LdifUsersTable {
 348                 private static final long serialVersionUID = 8467999509931900367L;
 349
 350                 private final UserFilter userFilter;
 351
 352                 public MyUserTableViewer(Composite parent, int style, UserAdmin userAdmin) {
 353                         super(parent, style, true);
 354                         userFilter = new UserFilter();
 355
 356                 }
 357
 358                 @Override
 359                 protected List<User> listFilteredElements(String filter) {
 360                         // reload user and set it in the editor
 361                         Group group = (Group) getDisplayedUser();
 362                         Role[] roles = group.getMembers();
 363                         List<User> users = new ArrayList<User>();
 364                         userFilter.setSearchText(filter);
 365                         // userFilter.setShowSystemRole(true);
 366                         for (Role role : roles)
 367                                 // if (role.getType() == Role.GROUP)
 368                                 if (userFilter.select(null, null, role))
 369                                         users.add((User) role);
 370                         return users;
 371                 }
 372         }
 373
 374         // private void addRemoveAbility(ToolBarManager toolBarManager, TableViewer
 375         // userViewer, Group group) {
 376         // // Section section = sectionPart.getSection();
 377         // // ToolBarManager toolBarManager = new ToolBarManager(SWT.FLAT);
 378         // // ToolBar toolbar = toolBarManager.createControl(parent);
 379         // // ToolBar toolbar = toolBarManager.getControl();
 380         // // final Cursor handCursor = new Cursor(toolbar.getDisplay(),
 381         // SWT.CURSOR_HAND);
 382         // // toolbar.setCursor(handCursor);
 383         // // toolbar.addDisposeListener(new DisposeListener() {
 384         // // private static final long serialVersionUID = 3882131405820522925L;
 385         // //
 386         // // public void widgetDisposed(DisposeEvent e) {
 387         // // if ((handCursor != null) && (handCursor.isDisposed() == false)) {
 388         // // handCursor.dispose();
 389         // // }
 390         // // }
 391         // // });
 392         //
 393         // Action action = new RemoveMembershipAction(userViewer, group, "Remove
 394         // selected items from this group",
 395         // SecurityAdminImages.ICON_REMOVE_DESC);
 396         // toolBarManager.add(action);
 397         // toolBarManager.update(true);
 398         // // section.setTextClient(toolbar);
 399         // }
 400
 401         private class RemoveMembershipAction extends Action {
 402                 private static final long serialVersionUID = -1337713097184522588L;
 403
 404                 private final TableViewer userViewer;
 405                 private final Group group;
 406
 407                 RemoveMembershipAction(TableViewer userViewer, Group group, String name, ImageDescriptor img) {
 408                         super(name, img);
 409                         this.userViewer = userViewer;
 410                         this.group = group;
 411                 }
 412
 413                 @Override
 414                 public void run() {
 415                         ISelection selection = userViewer.getSelection();
 416                         if (selection.isEmpty())
 417                                 return;
 418
 419                         @SuppressWarnings("unchecked")
 420                         Iterator<User> it = ((IStructuredSelection) selection).iterator();
 421                         List<User> users = new ArrayList<User>();
 422                         while (it.hasNext()) {
 423                                 User currUser = it.next();
 424                                 users.add(currUser);
 425                         }
 426
 427                         userAdminWrapper.beginTransactionIfNeeded();
 428                         for (User user : users) {
 429                                 group.removeMember(user);
 430                         }
 431                         userAdminWrapper.commitOrNotifyTransactionStateChange();
 432                         userAdminWrapper.notifyListeners(new UserAdminEvent(null, UserAdminEvent.ROLE_CHANGED, group));
 433                 }
 434         }
 435
 436         // LOCAL CONTROLLERS
 437         private class GroupMembersPart extends AbstractFormPart {
 438                 private final LdifUsersTable userViewer;
 439                 // private final Group group;
 440
 441                 private GroupChangeListener listener;
 442
 443                 public GroupMembersPart(LdifUsersTable userViewer) {
 444                         // super(section);
 445                         this.userViewer = userViewer;
 446                         // this.group = group;
 447                 }
 448
 449                 @Override
 450                 public void initialize(IManagedForm form) {
 451                         super.initialize(form);
 452                         listener = new GroupChangeListener(userViewer.getDisplay(), GroupMembersPart.this);
 453                         userAdminWrapper.addListener(listener);
 454                 }
 455
 456                 @Override
 457                 public void dispose() {
 458                         userAdminWrapper.removeListener(listener);
 459                         super.dispose();
 460                 }
 461
 462                 @Override
 463                 public void refresh() {
 464                         userViewer.refresh();
 465                         super.refresh();
 466                 }
 467         }
 468
 469         /**
 470          * Defines this table as being a potential target to add group membership
 471          * (roles) to this group
 472          */
 473         private class GroupDropListener extends ViewerDropAdapter {
 474                 private static final long serialVersionUID = 2893468717831451621L;
 475
 476                 private final UserAdminWrapper userAdminWrapper;
 477                 // private final LdifUsersTable myUserViewerCmp;
 478                 private final Group myGroup;
 479
 480                 public GroupDropListener(UserAdminWrapper userAdminWrapper, LdifUsersTable userTableViewerCmp, Group group) {
 481                         super(userTableViewerCmp.getTableViewer());
 482                         this.userAdminWrapper = userAdminWrapper;
 483                         this.myGroup = group;
 484                         // this.myUserViewerCmp = userTableViewerCmp;
 485                 }
 486
 487                 @Override
 488                 public boolean validateDrop(Object target, int operation, TransferData transferType) {
 489                         // Target is always OK in a list only view
 490                         // TODO check if not a string
 491                         boolean validDrop = true;
 492                         return validDrop;
 493                 }
 494
 495                 @Override
 496                 public void drop(DropTargetEvent event) {
 497                         // TODO Is there an opportunity to perform the check before?
 498                         String newUserName = (String) event.data;
 499                         UserAdmin myUserAdmin = userAdminWrapper.getUserAdmin();
 500                         Role role = myUserAdmin.getRole(newUserName);
 501                         if (role.getType() == Role.GROUP) {
 502                                 Group newGroup = (Group) role;
 503                                 Shell shell = getViewer().getControl().getShell();
 504                                 // Sanity checks
 505                                 if (myGroup == newGroup) { // Equality
 506                                         MessageDialog.openError(shell, "Forbidden addition ", "A group cannot be a member of itself.");
 507                                         return;
 508                                 }
 509
 510                                 // Cycle
 511                                 String myName = myGroup.getName();
 512                                 List<User> myMemberships = getFlatGroups(myGroup);
 513                                 if (myMemberships.contains(newGroup)) {
 514                                         MessageDialog.openError(shell, "Forbidden addition: cycle",
 515                                                         "Cannot add " + newUserName + " to group " + myName + ". This would create a cycle");
 516                                         return;
 517                                 }
 518
 519                                 // Already member
 520                                 List<User> newGroupMemberships = getFlatGroups(newGroup);
 521                                 if (newGroupMemberships.contains(myGroup)) {
 522                                         MessageDialog.openError(shell, "Forbidden addition",
 523                                                         "Cannot add " + newUserName + " to group " + myName + ", this membership already exists");
 524                                         return;
 525                                 }
 526                                 userAdminWrapper.beginTransactionIfNeeded();
 527                                 myGroup.addMember(newGroup);
 528                                 userAdminWrapper.commitOrNotifyTransactionStateChange();
 529                                 userAdminWrapper.notifyListeners(new UserAdminEvent(null, UserAdminEvent.ROLE_CHANGED, myGroup));
 530                         } else if (role.getType() == Role.USER) {
 531                                 // TODO check if the group is already member of this group
 532                                 UserTransaction transaction = userAdminWrapper.beginTransactionIfNeeded();
 533                                 User user = (User) role;
 534                                 myGroup.addMember(user);
 535                                 if (UserAdminWrapper.COMMIT_ON_SAVE)
 536                                         try {
 537                                                 transaction.commit();
 538                                         } catch (Exception e) {
 539                                                 throw new CmsException("Cannot commit transaction " + "after user group membership update", e);
 540                                         }
 541                                 userAdminWrapper.notifyListeners(new UserAdminEvent(null, UserAdminEvent.ROLE_CHANGED, myGroup));
 542                         }
 543                         super.drop(event);
 544                 }
 545
 546                 @Override
 547                 public boolean performDrop(Object data) {
 548                         // myUserViewerCmp.refresh();
 549                         return true;
 550                 }
 551         }
 552
 553         // LOCAL HELPERS
 554         // private Composite addSection(FormToolkit tk, Composite parent) {
 555         // Section section = tk.createSection(parent, SWT.NO_FOCUS);
 556         // section.setLayoutData(EclipseUiUtils.fillWidth());
 557         // Composite body = tk.createComposite(section, SWT.WRAP);
 558         // body.setLayoutData(EclipseUiUtils.fillAll());
 559         // section.setClient(body);
 560         // return body;
 561         // }
 562
 563         /** Creates label and text. */
 564         // private Text createLT(Composite parent, String label, String value) {
 565         // FormToolkit toolkit = getManagedForm().getToolkit();
 566         // Label lbl = toolkit.createLabel(parent, label);
 567         // lbl.setLayoutData(new GridData(SWT.LEAD, SWT.CENTER, false, false));
 568         // lbl.setFont(EclipseUiUtils.getBoldFont(parent));
 569         // Text text = toolkit.createText(parent, value, SWT.BORDER);
 570         // text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
 571         // CmsUtils.style(text, CmsWorkbenchStyles.WORKBENCH_FORM_TEXT);
 572         // return text;
 573         // }
 574         //
 575         // Text createReadOnlyLT(Composite parent, String label, String value) {
 576         // FormToolkit toolkit = getManagedForm().getToolkit();
 577         // Label lbl = toolkit.createLabel(parent, label);
 578         // lbl.setLayoutData(new GridData(SWT.LEAD, SWT.CENTER, false, false));
 579         // lbl.setFont(EclipseUiUtils.getBoldFont(parent));
 580         // Text text = toolkit.createText(parent, value, SWT.NONE);
 581         // text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
 582         // text.setEditable(false);
 583         // CmsUtils.style(text, CmsWorkbenchStyles.WORKBENCH_FORM_TEXT);
 584         // return text;
 585         // }
 586
 587 }