code.grnet.gr Git - pithos/blob - web_client/src/gr/grnet/pithos/web/client/GSS.java

   1 /*
   2  * Copyright (c) 2011 Greek Research and Technology Network
   3  */
   4 package gr.grnet.pithos.web.client;
   5
   6 import com.google.gwt.core.client.Scheduler;
   7 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
   8 import com.google.gwt.user.client.ui.DockPanel;
   9 import com.google.gwt.user.client.ui.HasVerticalAlignment;
  10 import com.google.gwt.view.client.ListDataProvider;
  11 import gr.grnet.pithos.web.client.clipboard.Clipboard;
  12 import gr.grnet.pithos.web.client.commands.GetUserCommand;
  13 import gr.grnet.pithos.web.client.foldertree.AccountResource;
  14 import gr.grnet.pithos.web.client.foldertree.Folder;
  15 import gr.grnet.pithos.web.client.foldertree.FolderTreeView;
  16 import gr.grnet.pithos.web.client.foldertree.FolderTreeViewModel;
  17 import gr.grnet.pithos.web.client.rest.GetRequest;
  18 import gr.grnet.pithos.web.client.rest.RestException;
  19 import gr.grnet.pithos.web.client.rest.resource.FileResource;
  20 import gr.grnet.pithos.web.client.rest.resource.OtherUserResource;
  21 import gr.grnet.pithos.web.client.rest.resource.RestResource;
  22 import gr.grnet.pithos.web.client.rest.resource.RestResourceWrapper;
  23 import gr.grnet.pithos.web.client.rest.resource.SharedResource;
  24 import gr.grnet.pithos.web.client.rest.resource.TrashResource;
  25 import gr.grnet.pithos.web.client.rest.resource.UserResource;
  26
  27 import java.util.ArrayList;
  28 import java.util.Arrays;
  29 import java.util.Date;
  30 import java.util.HashMap;
  31 import java.util.Iterator;
  32 import java.util.List;
  33
  34 import com.google.gwt.core.client.EntryPoint;
  35 import com.google.gwt.core.client.GWT;
  36 import com.google.gwt.event.logical.shared.ResizeEvent;
  37 import com.google.gwt.event.logical.shared.ResizeHandler;
  38 import com.google.gwt.event.logical.shared.SelectionEvent;
  39 import com.google.gwt.event.logical.shared.SelectionHandler;
  40 import com.google.gwt.http.client.URL;
  41 import com.google.gwt.i18n.client.DateTimeFormat;
  42 import com.google.gwt.resources.client.ClientBundle;
  43 import com.google.gwt.resources.client.ImageResource;
  44 import com.google.gwt.user.client.Command;
  45 import com.google.gwt.user.client.Cookies;
  46 import com.google.gwt.user.client.DOM;
  47 import com.google.gwt.user.client.DeferredCommand;
  48 import com.google.gwt.user.client.Event;
  49 import com.google.gwt.user.client.History;
  50 import com.google.gwt.user.client.Window;
  51 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  52 import com.google.gwt.user.client.ui.DecoratedTabPanel;
  53 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  54 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
  55 import com.google.gwt.user.client.ui.RootPanel;
  56 import com.google.gwt.user.client.ui.TabPanel;
  57 import com.google.gwt.user.client.ui.VerticalPanel;
  58
  59 /**
  60  * Entry point classes define <code>onModuleLoad()</code>.
  61  */
  62 public class GSS implements EntryPoint, ResizeHandler {
  63
  64         /**
  65          * A constant that denotes the completion of an IncrementalCommand.
  66          */
  67         public static final boolean DONE = false;
  68
  69         public static final int VISIBLE_FILE_COUNT = 25;
  70
  71         /**
  72          * Instantiate an application-level image bundle. This object will provide
  73          * programmatic access to all the images needed by widgets.
  74          */
  75         private static Images images = (Images) GWT.create(Images.class);
  76
  77     public String getUsername() {
  78         return username;
  79     }
  80
  81     public void setAccount(AccountResource acct) {
  82         account = acct;
  83     }
  84
  85     public AccountResource getAccount() {
  86         return account;
  87     }
  88
  89     /**
  90          * An aggregate image bundle that pulls together all the images for this
  91          * application into a single bundle.
  92          */
  93         public interface Images extends ClientBundle, TopPanel.Images, StatusPanel.Images, FileMenu.Images, EditMenu.Images, SettingsMenu.Images, FilePropertiesDialog.Images, MessagePanel.Images, FileList.Images, Search.Images, CellTreeView.Images {
  94
  95                 @Source("gr/grnet/pithos/resources/document.png")
  96                 ImageResource folders();
  97
  98                 @Source("gr/grnet/pithos/resources/edit_group_22.png")
  99                 ImageResource groups();
 100
 101                 @Source("gr/grnet/pithos/resources/search.png")
 102                 ImageResource search();
 103         }
 104
 105         /**
 106          * The single GSS instance.
 107          */
 108         private static GSS singleton;
 109
 110         /**
 111          * Gets the singleton GSS instance.
 112          *
 113          * @return the GSS object
 114          */
 115         public static GSS get() {
 116                 if (GSS.singleton == null)
 117                         GSS.singleton = new GSS();
 118                 return GSS.singleton;
 119         }
 120
 121         /**
 122          * The Application Clipboard implementation;
 123          */
 124         private Clipboard clipboard = new Clipboard();
 125
 126         private UserResource currentUserResource;
 127
 128         /**
 129          * The top panel that contains the menu bar.
 130          */
 131         private TopPanel topPanel;
 132
 133         /**
 134          * The panel that contains the various system messages.
 135          */
 136         private MessagePanel messagePanel = new MessagePanel(GSS.images);
 137
 138         /**
 139          * The bottom panel that contains the status bar.
 140          */
 141         private StatusPanel statusPanel = null;
 142
 143         /**
 144          * The top right panel that displays the logged in user details
 145          */
 146         private UserDetailsPanel userDetailsPanel = new UserDetailsPanel();
 147
 148         /**
 149          * The file list widget.
 150          */
 151         private FileList fileList;
 152
 153         /**
 154          * The tab panel that occupies the right side of the screen.
 155          */
 156         private TabPanel inner = new DecoratedTabPanel(){
 157
 158                 public void onBrowserEvent(com.google.gwt.user.client.Event event) {
 159                         if (DOM.eventGetType(event) == Event.ONCONTEXTMENU){
 160                                 if(isFileListShowing()){
 161                                         getFileList().showContextMenu(event);
 162                                 }
 163                         }
 164                 };
 165         };
 166
 167         /**
 168          * The split panel that will contain the left and right panels.
 169          */
 170         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 171
 172         /**
 173          * The widget that displays the tree of folders.
 174          */
 175
 176         private CellTreeView treeView = null;
 177         /**
 178          * The currently selected item in the application, for use by the Edit menu
 179          * commands. Potential types are Folder, File, User and Group.
 180          */
 181         private Object currentSelection;
 182
 183
 184         /**
 185          * The WebDAV password of the current user
 186          */
 187         private String webDAVPassword;
 188
 189         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 190
 191     private String username = null;
 192
 193     /**
 194      * The authentication token of the current user.
 195      */
 196     private String token;
 197
 198     private FolderTreeViewModel folderTreeViewModel = new FolderTreeViewModel();
 199
 200     private FolderTreeView folderTreeView = new FolderTreeView(folderTreeViewModel);
 201
 202     private AccountResource account;
 203
 204         @Override
 205         public void onModuleLoad() {
 206                 // Initialize the singleton before calling the constructors of the
 207                 // various widgets that might call GSS.get().
 208                 singleton = this;
 209                 if (parseUserCredentials())
 210             initialize();
 211         }
 212
 213     private void initialize() {
 214         topPanel = new TopPanel(GSS.images);
 215         topPanel.setWidth("100%");
 216
 217         messagePanel.setWidth("100%");
 218         messagePanel.setVisible(false);
 219
 220         fileList = new FileList(images);
 221
 222         // Inner contains the various lists.
 223         inner.sinkEvents(Event.ONCONTEXTMENU);
 224         inner.setAnimationEnabled(true);
 225         inner.getTabBar().addStyleName("pithos-MainTabBar");
 226         inner.getDeckPanel().addStyleName("pithos-MainTabPanelBottom");
 227         inner.add(fileList, createHeaderHTML(AbstractImagePrototype.create(images.folders()), "Files"), true);
 228
 229         inner.setWidth("100%");
 230         inner.selectTab(0);
 231
 232         inner.addSelectionHandler(new SelectionHandler<Integer>() {
 233
 234             @Override
 235             public void onSelection(SelectionEvent<Integer> event) {
 236                 int tabIndex = event.getSelectedItem();
 237                 switch (tabIndex) {
 238                     case 0:
 239                         fileList.updateCurrentlyShowingStats();
 240                         break;
 241                 }
 242             }
 243         });
 244
 245         // Add the left and right panels to the split panel.
 246         splitPanel.setLeftWidget(folderTreeView);
 247         splitPanel.setRightWidget(inner);
 248         splitPanel.setSplitPosition("25%");
 249         splitPanel.setSize("100%", "100%");
 250         splitPanel.addStyleName("pithos-splitPanel");
 251
 252         // Create a dock panel that will contain the menu bar at the top,
 253         // the shortcuts to the left, the status bar at the bottom and the
 254         // right panel taking the rest.
 255         VerticalPanel outer = new VerticalPanel();
 256         outer.add(topPanel);
 257         outer.add(messagePanel);
 258         outer.add(splitPanel);
 259         statusPanel = new StatusPanel(GSS.images);
 260         outer.add(statusPanel);
 261         outer.setWidth("100%");
 262         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 263
 264         outer.setSpacing(4);
 265
 266         // Hook the window resize event, so that we can adjust the UI.
 267         Window.addResizeHandler(this);
 268         // Clear out the window's built-in margin, because we want to take
 269         // advantage of the entire client area.
 270         Window.setMargin("0px");
 271         // Finally, add the outer panel to the RootPanel, so that it will be
 272         // displayed.
 273         RootPanel.get().add(outer);
 274         // Call the window resized handler to get the initial sizes setup. Doing
 275         // this in a deferred command causes it to occur after all widgets'
 276         // sizes have been computed by the browser.
 277         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 278
 279             @Override
 280             public void execute() {
 281                 onWindowResized(Window.getClientHeight());
 282             }
 283         });
 284
 285         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 286             @Override
 287             public void execute() {
 288                 fetchAccount();
 289             }
 290         });
 291     }
 292
 293         /**
 294          * Parse and store the user credentials to the appropriate fields.
 295          */
 296         private boolean parseUserCredentials() {
 297                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 298                 String cookie = conf.authCookie();
 299                 String auth = Cookies.getCookie(cookie);
 300                 if (auth == null) {
 301                         authenticateUser();
 302             return false;
 303         }
 304         else {
 305             String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 306             if (authSplit.length != 2) {
 307                 authenticateUser();
 308                 return false;
 309             }
 310             else {
 311                 username = authSplit[0];
 312                 token = authSplit[1];
 313                 return true;
 314             }
 315         }
 316         }
 317
 318     /**
 319          * Redirect the user to the login page for authentication.
 320          */
 321         protected void authenticateUser() {
 322                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 323
 324 //        Window.Location.assign(GWT.getModuleBaseURL() + conf.loginUrl() + "?next=" + Window.Location.getHref());
 325         Cookies.setCookie(conf.authCookie(), "demo" + conf.cookieSeparator() + "0000");
 326         Window.Location.assign(GWT.getModuleBaseURL() + "GSS.html");
 327         }
 328
 329     private void fetchAccount() {
 330         String path = getApiPath() + username + "?format=json";
 331
 332         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, path) {
 333             @Override
 334             public void onSuccess(AccountResource result) {
 335                 account = result;
 336                 statusPanel.displayStats(account);
 337                 folderTreeViewModel.initialize(account);
 338             }
 339
 340             @Override
 341             public void onError(Throwable t) {
 342                 GWT.log("Error getting account", t);
 343                 if (t instanceof RestException)
 344                     GSS.get().displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 345                 else
 346                     GSS.get().displayError("System error fetching user data: " + t.getMessage());
 347             }
 348         };
 349
 350         Scheduler.get().scheduleDeferred(getAccount);
 351     }
 352
 353         /**
 354          * Clear the cookie and redirect the user to the logout page.
 355          */
 356         void logout() {
 357                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 358                 String cookie = conf.authCookie();
 359                 String domain = Window.Location.getHostName();
 360                 String path = Window.Location.getPath();
 361                 Cookies.setCookie(cookie, "", null, domain, path, false);
 362         String baseUrl = GWT.getModuleBaseURL();
 363         String homeUrl = baseUrl.substring(0, baseUrl.indexOf(path));
 364                 Window.Location.assign(homeUrl + conf.logoutUrl());
 365         }
 366
 367         /**
 368          * Creates an HTML fragment that places an image & caption together, for use
 369          * in a group header.
 370          *
 371          * @param imageProto an image prototype for an image
 372          * @param caption the group caption
 373          * @return the header HTML fragment
 374          */
 375         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 376                 String captionHTML = "<table class='caption' cellpadding='0' "
 377                 + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 378                 + "</td><td id =" + caption +" class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 379                 + caption + "</b></td></tr></table>";
 380                 return captionHTML;
 381         }
 382
 383         private void onWindowResized(int height) {
 384                 // Adjust the split panel to take up the available room in the window.
 385                 int newHeight = height - splitPanel.getAbsoluteTop() - 44;
 386                 if (newHeight < 1)
 387                         newHeight = 1;
 388                 splitPanel.setHeight("" + newHeight);
 389                 inner.setHeight("" + newHeight);
 390         }
 391
 392         @Override
 393         public void onResize(ResizeEvent event) {
 394                 int height = event.getHeight();
 395                 onWindowResized(height);
 396         }
 397
 398         public boolean isFileListShowing() {
 399                 int tab = inner.getTabBar().getSelectedTab();
 400                 if (tab == 0)
 401                         return true;
 402                 return false;
 403         }
 404
 405         public boolean isSearchResultsShowing() {
 406                 int tab = inner.getTabBar().getSelectedTab();
 407                 if (tab == 2)
 408                         return true;
 409                 return false;
 410         }
 411
 412         /**
 413          * Make the user list visible.
 414          */
 415         public void showUserList() {
 416                 inner.selectTab(1);
 417         }
 418
 419         /**
 420          * Make the file list visible.
 421          */
 422         public void showFileList() {
 423                 fileList.updateFileCache(true /*clear selection*/);
 424                 inner.selectTab(0);
 425         }
 426
 427         /**
 428          * Make the file list visible.
 429          *
 430          * @param update
 431          */
 432         public void showFileList(boolean update) {
 433                 if(update){
 434                         getTreeView().refreshCurrentNode(true);
 435                 }
 436                 else{
 437                         RestResource currentFolder = getTreeView().getSelection();
 438                         if(currentFolder!=null){
 439                                 showFileList(currentFolder);
 440                 }
 441                 }
 442
 443         }
 444
 445         public void showFileList(RestResource r) {
 446                 showFileList(r,true);
 447         }
 448
 449         public void showFileList(RestResource r, boolean clearSelection) {
 450                 RestResource currentFolder = r;
 451                 if(currentFolder!=null){
 452                         List<FileResource> files = null;
 453                         if (currentFolder instanceof RestResourceWrapper) {
 454                                 RestResourceWrapper folder = (RestResourceWrapper) currentFolder;
 455                                 files = folder.getResource().getFiles();
 456                         } else if (currentFolder instanceof TrashResource) {
 457                                 TrashResource folder = (TrashResource) currentFolder;
 458                                 files = folder.getFiles();
 459                         }
 460                         else if (currentFolder instanceof SharedResource) {
 461                                 SharedResource folder = (SharedResource) currentFolder;
 462                                 files = folder.getFiles();
 463                         }
 464                         else if (currentFolder instanceof OtherUserResource) {
 465                                 OtherUserResource folder = (OtherUserResource) currentFolder;
 466                                 files = folder.getFiles();
 467                         }
 468                         if (files != null)
 469                                 getFileList().setFiles(files);
 470                         else
 471                                 getFileList().setFiles(new ArrayList<FileResource>());
 472                 }
 473                 fileList.updateFileCache(clearSelection /*clear selection*/);
 474                 inner.selectTab(0);
 475         }
 476
 477         /**
 478          * Display the 'loading' indicator.
 479          */
 480         public void showLoadingIndicator(String message, String path) {
 481                 if(path!=null){
 482                         String[] split = path.split("/");
 483                         message = message +" "+URL.decode(split[split.length-1]);
 484                 }
 485                 topPanel.getLoading().show(message);
 486         }
 487
 488         /**
 489          * Hide the 'loading' indicator.
 490          */
 491         public void hideLoadingIndicator() {
 492                 topPanel.getLoading().hide();
 493         }
 494
 495         /**
 496          * A native JavaScript method to reach out to the browser's window and
 497          * invoke its resizeTo() method.
 498          *
 499          * @param x the new width
 500          * @param y the new height
 501          */
 502         public static native void resizeTo(int x, int y) /*-{
 503                 $wnd.resizeTo(x,y);
 504         }-*/;
 505
 506         /**
 507          * A helper method that returns true if the user's list is currently visible
 508          * and false if it is hidden.
 509          *
 510          * @return true if the user list is visible
 511          */
 512         public boolean isUserListVisible() {
 513                 return inner.getTabBar().getSelectedTab() == 1;
 514         }
 515
 516         /**
 517          * Display an error message.
 518          *
 519          * @param msg the message to display
 520          */
 521         public void displayError(String msg) {
 522                 messagePanel.displayError(msg);
 523         }
 524
 525         /**
 526          * Display a warning message.
 527          *
 528          * @param msg the message to display
 529          */
 530         public void displayWarning(String msg) {
 531                 messagePanel.displayWarning(msg);
 532         }
 533
 534         /**
 535          * Display an informational message.
 536          *
 537          * @param msg the message to display
 538          */
 539         public void displayInformation(String msg) {
 540                 messagePanel.displayInformation(msg);
 541         }
 542
 543         /**
 544          * Retrieve the folders.
 545          *
 546          * @return the folders
 547
 548         public Folders getFolders() {
 549                 return folders;
 550         }*/
 551
 552         /**
 553          * Retrieve the currentSelection.
 554          *
 555          * @return the currentSelection
 556          */
 557         public Object getCurrentSelection() {
 558                 return currentSelection;
 559         }
 560
 561         /**
 562          * Modify the currentSelection.
 563          *
 564          * @param newCurrentSelection the currentSelection to set
 565          */
 566         public void setCurrentSelection(Object newCurrentSelection) {
 567                 currentSelection = newCurrentSelection;
 568         }
 569
 570         /**
 571          * Retrieve the fileList.
 572          *
 573          * @return the fileList
 574          */
 575         public FileList getFileList() {
 576                 return fileList;
 577         }
 578
 579         /**
 580          * Retrieve the topPanel.
 581          *
 582          * @return the topPanel
 583          */
 584         TopPanel getTopPanel() {
 585                 return topPanel;
 586         }
 587
 588         /**
 589          * Retrieve the clipboard.
 590          *
 591          * @return the clipboard
 592          */
 593         public Clipboard getClipboard() {
 594                 return clipboard;
 595         }
 596
 597         public StatusPanel getStatusPanel() {
 598                 return statusPanel;
 599         }
 600
 601         /**
 602          * Retrieve the userDetailsPanel.
 603          *
 604          * @return the userDetailsPanel
 605          */
 606         public UserDetailsPanel getUserDetailsPanel() {
 607                 return userDetailsPanel;
 608         }
 609
 610
 611
 612         public String getToken() {
 613                 return token;
 614         }
 615
 616         public String getWebDAVPassword() {
 617                 return webDAVPassword;
 618         }
 619
 620         /**
 621          * Retrieve the currentUserResource.
 622          *
 623          * @return the currentUserResource
 624          */
 625         public UserResource getCurrentUserResource() {
 626                 return currentUserResource;
 627         }
 628
 629         /**
 630          * Modify the currentUserResource.
 631          *
 632          * @param newUser the new currentUserResource
 633          */
 634         public void setCurrentUserResource(UserResource newUser) {
 635                 currentUserResource = newUser;
 636         }
 637
 638         public static native void preventIESelection() /*-{
 639                 $doc.body.onselectstart = function () { return false; };
 640         }-*/;
 641
 642         public static native void enableIESelection() /*-{
 643                 if ($doc.body.onselectstart != null)
 644                 $doc.body.onselectstart = null;
 645         }-*/;
 646
 647         /**
 648          * @return the absolute path of the API root URL
 649          */
 650         public String getApiPath() {
 651                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 652                 return conf.apiPath();
 653         }
 654
 655         /**
 656          * Convert server date to local time according to browser timezone
 657          * and format it according to localized pattern.
 658          * Time is always formatted to 24hr format.
 659          * NB: This assumes that server runs in UTC timezone. Otherwise
 660          * we would need to adjust for server time offset as well.
 661          *
 662          * @param date
 663          * @return String
 664          */
 665         public static String formatLocalDateTime(Date date) {
 666                 Date convertedDate = new Date(date.getTime() - date.getTimezoneOffset());
 667                 final DateTimeFormat dateFormatter = DateTimeFormat.getShortDateFormat();
 668                 final DateTimeFormat timeFormatter = DateTimeFormat.getFormat("HH:mm");
 669                 String datePart = dateFormatter.format(convertedDate);
 670                 String timePart = timeFormatter.format(convertedDate);
 671                 return datePart + " " + timePart;
 672         }
 673
 674         /**
 675          * History support for folder navigation
 676          * adds a new browser history entry
 677          *
 678          * @param key
 679          */
 680         public void updateHistory(String key){
 681 //              Replace any whitespace of the initial string to "+"
 682 //              String result = key.replaceAll("\\s","+");
 683 //              Add a new browser history entry.
 684 //              History.newItem(result);
 685                 History.newItem(key);
 686         }
 687
 688         /**
 689          * This method examines the token input and add a "/" at the end in case it's omitted.
 690          * This happens only in Files/trash/, Files/shared/, Files/others.
 691          *
 692          * @param tokenInput
 693          * @return the formated token with a "/" at the end or the same tokenInput parameter
 694          */
 695
 696         private String handleSpecialFolderNames(String tokenInput){
 697                 List<String> pathsToCheck = Arrays.asList("Files/trash", "Files/shared", "Files/others");
 698                 if(pathsToCheck.contains(tokenInput))
 699                         return tokenInput + "/";
 700                 return tokenInput;
 701
 702         }
 703
 704         /**
 705          * Reject illegal resource names, like '.' or '..' or slashes '/'.
 706          */
 707         static boolean isValidResourceName(String name) {
 708                 if (".".equals(name) || "..".equals(name) || name.contains("/"))
 709                         return false;
 710                 return true;
 711         }
 712
 713         public void putUserToMap(String _userName, String _userFullName){
 714                 userFullNameMap.put(_userName, _userFullName);
 715         }
 716
 717         public String findUserFullName(String _userName){
 718                 return userFullNameMap.get(_userName);
 719         }
 720         public String getUserFullName(String _userName) {
 721
 722         if (GSS.get().findUserFullName(_userName) == null)
 723                 //if there is no userFullName found then the map fills with the given _userName,
 724                 //so userFullName = _userName
 725                 GSS.get().putUserToMap(_userName, _userName);
 726         else if(GSS.get().findUserFullName(_userName).indexOf('@') != -1){
 727                 //if the userFullName = _userName the GetUserCommand updates the userFullName in the map
 728                 GetUserCommand guc = new GetUserCommand(_userName);
 729                 guc.execute();
 730         }
 731         return GSS.get().findUserFullName(_userName);
 732         }
 733         /**
 734          * Retrieve the treeView.
 735          *
 736          * @return the treeView
 737          */
 738         public CellTreeView getTreeView() {
 739                 return treeView;
 740         }
 741
 742         public void onResourceUpdate(RestResource resource,boolean clearSelection){
 743                 if(resource instanceof RestResourceWrapper || resource instanceof OtherUserResource || resource instanceof TrashResource || resource instanceof SharedResource){
 744                         if(getTreeView().getSelection()!=null&&getTreeView().getSelection().getUri().equals(resource.getUri()))
 745                                 showFileList(resource,clearSelection);
 746                 }
 747
 748         }
 749 }