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.view.client.SelectionChangeEvent;
   9 import com.google.gwt.view.client.SingleSelectionModel;
  10 import gr.grnet.pithos.web.client.clipboard.Clipboard;
  11 import gr.grnet.pithos.web.client.commands.GetUserCommand;
  12 import gr.grnet.pithos.web.client.foldertree.AccountResource;
  13 import gr.grnet.pithos.web.client.foldertree.File;
  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.Cookies;
  45 import com.google.gwt.user.client.DOM;
  46 import com.google.gwt.user.client.Event;
  47 import com.google.gwt.user.client.History;
  48 import com.google.gwt.user.client.Window;
  49 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  50 import com.google.gwt.user.client.ui.DecoratedTabPanel;
  51 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  52 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
  53 import com.google.gwt.user.client.ui.RootPanel;
  54 import com.google.gwt.user.client.ui.TabPanel;
  55 import com.google.gwt.user.client.ui.VerticalPanel;
  56 import java.util.Set;
  57
  58 /**
  59  * Entry point classes define <code>onModuleLoad()</code>.
  60  */
  61 public class GSS implements EntryPoint, ResizeHandler {
  62
  63         /**
  64          * A constant that denotes the completion of an IncrementalCommand.
  65          */
  66         public static final boolean DONE = false;
  67
  68         public static final int VISIBLE_FILE_COUNT = 25;
  69
  70         /**
  71          * Instantiate an application-level image bundle. This object will provide
  72          * programmatic access to all the images needed by widgets.
  73          */
  74         private static Images images = (Images) GWT.create(Images.class);
  75
  76     public String getUsername() {
  77         return username;
  78     }
  79
  80     public void setAccount(AccountResource acct) {
  81         account = acct;
  82     }
  83
  84     public AccountResource getAccount() {
  85         return account;
  86     }
  87
  88     /**
  89          * An aggregate image bundle that pulls together all the images for this
  90          * application into a single bundle.
  91          */
  92         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 {
  93
  94                 @Source("gr/grnet/pithos/resources/document.png")
  95                 ImageResource folders();
  96
  97                 @Source("gr/grnet/pithos/resources/edit_group_22.png")
  98                 ImageResource groups();
  99
 100                 @Source("gr/grnet/pithos/resources/search.png")
 101                 ImageResource search();
 102         }
 103
 104         /**
 105          * The single GSS instance.
 106          */
 107         private static GSS singleton;
 108
 109         /**
 110          * Gets the singleton GSS instance.
 111          *
 112          * @return the GSS object
 113          */
 114         public static GSS get() {
 115                 if (GSS.singleton == null)
 116                         GSS.singleton = new GSS();
 117                 return GSS.singleton;
 118         }
 119
 120         /**
 121          * The Application Clipboard implementation;
 122          */
 123         private Clipboard clipboard = new Clipboard();
 124
 125         private UserResource currentUserResource;
 126
 127         /**
 128          * The top panel that contains the menu bar.
 129          */
 130         private TopPanel topPanel;
 131
 132         /**
 133          * The panel that contains the various system messages.
 134          */
 135         private MessagePanel messagePanel = new MessagePanel(GSS.images);
 136
 137         /**
 138          * The bottom panel that contains the status bar.
 139          */
 140         private StatusPanel statusPanel = null;
 141
 142         /**
 143          * The top right panel that displays the logged in user details
 144          */
 145         private UserDetailsPanel userDetailsPanel = new UserDetailsPanel();
 146
 147         /**
 148          * The file list widget.
 149          */
 150         private FileList fileList;
 151
 152         /**
 153          * The tab panel that occupies the right side of the screen.
 154          */
 155         private TabPanel inner = new DecoratedTabPanel(){
 156
 157                 public void onBrowserEvent(com.google.gwt.user.client.Event event) {
 158                         if (DOM.eventGetType(event) == Event.ONCONTEXTMENU){
 159                                 if(isFileListShowing()){
 160                                         getFileList().showContextMenu(event);
 161                                 }
 162                         }
 163                 };
 164         };
 165
 166         /**
 167          * The split panel that will contain the left and right panels.
 168          */
 169         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 170
 171         /**
 172          * The widget that displays the tree of folders.
 173          */
 174
 175         private CellTreeView treeView = null;
 176         /**
 177          * The currently selected item in the application, for use by the Edit menu
 178          * commands. Potential types are Folder, File, User and Group.
 179          */
 180         private Object currentSelection;
 181
 182
 183         /**
 184          * The WebDAV password of the current user
 185          */
 186         private String webDAVPassword;
 187
 188         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 189
 190     private String username = null;
 191
 192     /**
 193      * The authentication token of the current user.
 194      */
 195     private String token;
 196
 197     private SingleSelectionModel<Folder> folderTreeSelectionModel;
 198     private FolderTreeViewModel folderTreeViewModel;
 199     private FolderTreeView folderTreeView;
 200
 201     private AccountResource account;
 202
 203         @Override
 204         public void onModuleLoad() {
 205                 // Initialize the singleton before calling the constructors of the
 206                 // various widgets that might call GSS.get().
 207                 singleton = this;
 208                 if (parseUserCredentials())
 209             initialize();
 210         }
 211
 212     private void initialize() {
 213         topPanel = new TopPanel(GSS.images);
 214         topPanel.setWidth("100%");
 215
 216         messagePanel.setWidth("100%");
 217         messagePanel.setVisible(false);
 218
 219
 220         // Inner contains the various lists.
 221         inner.sinkEvents(Event.ONCONTEXTMENU);
 222         inner.setAnimationEnabled(true);
 223         inner.getTabBar().addStyleName("pithos-MainTabBar");
 224         inner.getDeckPanel().addStyleName("pithos-MainTabPanelBottom");
 225
 226         inner.setWidth("100%");
 227
 228         inner.addSelectionHandler(new SelectionHandler<Integer>() {
 229
 230             @Override
 231             public void onSelection(SelectionEvent<Integer> event) {
 232                 int tabIndex = event.getSelectedItem();
 233                 switch (tabIndex) {
 234                     case 0:
 235                         fileList.updateCurrentlyShowingStats();
 236                         break;
 237                 }
 238             }
 239         });
 240
 241         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 242         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 243             @Override
 244             public void onSelectionChange(SelectionChangeEvent event) {
 245                 Folder f = folderTreeSelectionModel.getSelectedObject();
 246                 showFiles(f);
 247             }
 248         });
 249
 250         folderTreeViewModel = new FolderTreeViewModel(folderTreeSelectionModel);
 251         folderTreeView = new FolderTreeView(folderTreeViewModel);
 252
 253         fileList = new FileList(images, folderTreeView);
 254         inner.add(fileList, createHeaderHTML(AbstractImagePrototype.create(images.folders()), "Files"), true);
 255
 256         // Add the left and right panels to the split panel.
 257         splitPanel.setLeftWidget(folderTreeView);
 258         splitPanel.setRightWidget(inner);
 259         splitPanel.setSplitPosition("25%");
 260         splitPanel.setSize("100%", "100%");
 261         splitPanel.addStyleName("pithos-splitPanel");
 262
 263         // Create a dock panel that will contain the menu bar at the top,
 264         // the shortcuts to the left, the status bar at the bottom and the
 265         // right panel taking the rest.
 266         VerticalPanel outer = new VerticalPanel();
 267         outer.add(topPanel);
 268         outer.add(messagePanel);
 269         outer.add(splitPanel);
 270         statusPanel = new StatusPanel(GSS.images);
 271         outer.add(statusPanel);
 272         outer.setWidth("100%");
 273         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 274
 275         outer.setSpacing(4);
 276
 277         // Hook the window resize event, so that we can adjust the UI.
 278         Window.addResizeHandler(this);
 279         // Clear out the window's built-in margin, because we want to take
 280         // advantage of the entire client area.
 281         Window.setMargin("0px");
 282         // Finally, add the outer panel to the RootPanel, so that it will be
 283         // displayed.
 284         RootPanel.get().add(outer);
 285         // Call the window resized handler to get the initial sizes setup. Doing
 286         // this in a deferred command causes it to occur after all widgets'
 287         // sizes have been computed by the browser.
 288         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 289
 290             @Override
 291             public void execute() {
 292                 onWindowResized(Window.getClientHeight());
 293             }
 294         });
 295
 296         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 297             @Override
 298             public void execute() {
 299                 fetchAccount();
 300             }
 301         });
 302     }
 303
 304     private void showFiles(Folder f) {
 305         inner.selectTab(0);
 306         Set<File> files = f.getFiles();
 307         Iterator<File> iter = files.iterator();
 308         fetchFile(iter, files);
 309     }
 310
 311     private void fetchFile(final Iterator<File> iter, final Set<File> files) {
 312         if (iter.hasNext()) {
 313             File file = iter.next();
 314             String path = getApiPath() + username + "/" + file.getContainer() + "/" + file.getPath() + "?format=json";
 315             GetRequest<File> getFile = new GetRequest<File>(File.class, path, file) {
 316                 @Override
 317                 public void onSuccess(File result) {
 318                     fetchFile(iter, files);
 319                 }
 320
 321                 @Override
 322                 public void onError(Throwable t) {
 323                     GWT.log("Error getting file", t);
 324                     if (t instanceof RestException)
 325                         GSS.get().displayError("Error getting file: " + ((RestException) t).getHttpStatusText());
 326                     else
 327                         GSS.get().displayError("System error fetching file: " + t.getMessage());
 328                 }
 329             };
 330             getFile.setHeader("X-Auth-Token", "0000");
 331             Scheduler.get().scheduleDeferred(getFile);
 332         }
 333         else
 334             fileList.setFiles(new ArrayList<File>(files));
 335     }
 336
 337     /**
 338          * Parse and store the user credentials to the appropriate fields.
 339          */
 340         private boolean parseUserCredentials() {
 341                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 342                 String cookie = conf.authCookie();
 343                 String auth = Cookies.getCookie(cookie);
 344                 if (auth == null) {
 345                         authenticateUser();
 346             return false;
 347         }
 348         else {
 349             String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 350             if (authSplit.length != 2) {
 351                 authenticateUser();
 352                 return false;
 353             }
 354             else {
 355                 username = authSplit[0];
 356                 token = authSplit[1];
 357                 return true;
 358             }
 359         }
 360         }
 361
 362     /**
 363          * Redirect the user to the login page for authentication.
 364          */
 365         protected void authenticateUser() {
 366                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 367
 368 //        Window.Location.assign(GWT.getModuleBaseURL() + conf.loginUrl() + "?next=" + Window.Location.getHref());
 369         Cookies.setCookie(conf.authCookie(), "test" + conf.cookieSeparator() + "0000");
 370         Window.Location.assign(GWT.getModuleBaseURL() + "GSS.html");
 371         }
 372
 373     private void fetchAccount() {
 374         String path = getApiPath() + username + "?format=json";
 375
 376         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, path) {
 377             @Override
 378             public void onSuccess(AccountResource result) {
 379                 account = result;
 380                 statusPanel.displayStats(account);
 381                 folderTreeViewModel.initialize(account);
 382                 inner.selectTab(0);
 383             }
 384
 385             @Override
 386             public void onError(Throwable t) {
 387                 GWT.log("Error getting account", t);
 388                 if (t instanceof RestException)
 389                     GSS.get().displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 390                 else
 391                     GSS.get().displayError("System error fetching user data: " + t.getMessage());
 392             }
 393         };
 394         getAccount.setHeader("X-Auth-Token", token);
 395         Scheduler.get().scheduleDeferred(getAccount);
 396     }
 397
 398         /**
 399          * Clear the cookie and redirect the user to the logout page.
 400          */
 401         void logout() {
 402                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 403                 String cookie = conf.authCookie();
 404                 String domain = Window.Location.getHostName();
 405                 String path = Window.Location.getPath();
 406                 Cookies.setCookie(cookie, "", null, domain, path, false);
 407         String baseUrl = GWT.getModuleBaseURL();
 408         String homeUrl = baseUrl.substring(0, baseUrl.indexOf(path));
 409                 Window.Location.assign(homeUrl + conf.logoutUrl());
 410         }
 411
 412         /**
 413          * Creates an HTML fragment that places an image & caption together, for use
 414          * in a group header.
 415          *
 416          * @param imageProto an image prototype for an image
 417          * @param caption the group caption
 418          * @return the header HTML fragment
 419          */
 420         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 421                 String captionHTML = "<table class='caption' cellpadding='0' "
 422                 + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 423                 + "</td><td id =" + caption +" class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 424                 + caption + "</b></td></tr></table>";
 425                 return captionHTML;
 426         }
 427
 428         private void onWindowResized(int height) {
 429                 // Adjust the split panel to take up the available room in the window.
 430                 int newHeight = height - splitPanel.getAbsoluteTop() - 44;
 431                 if (newHeight < 1)
 432                         newHeight = 1;
 433                 splitPanel.setHeight("" + newHeight);
 434                 inner.setHeight("" + newHeight);
 435         }
 436
 437         @Override
 438         public void onResize(ResizeEvent event) {
 439                 int height = event.getHeight();
 440                 onWindowResized(height);
 441         }
 442
 443         public boolean isFileListShowing() {
 444                 int tab = inner.getTabBar().getSelectedTab();
 445                 if (tab == 0)
 446                         return true;
 447                 return false;
 448         }
 449
 450         public boolean isSearchResultsShowing() {
 451                 int tab = inner.getTabBar().getSelectedTab();
 452                 if (tab == 2)
 453                         return true;
 454                 return false;
 455         }
 456
 457         /**
 458          * Make the file list visible.
 459          *
 460          * @param update
 461          */
 462         public void showFileList(boolean update) {
 463                 if(update){
 464                         getTreeView().refreshCurrentNode(true);
 465                 }
 466                 else{
 467                         RestResource currentFolder = getTreeView().getSelection();
 468                         if(currentFolder!=null){
 469                                 showFileList(currentFolder);
 470                 }
 471                 }
 472
 473         }
 474
 475         public void showFileList(RestResource r) {
 476                 showFileList(r,true);
 477         }
 478
 479         public void showFileList(RestResource r, boolean clearSelection) {
 480                 RestResource currentFolder = r;
 481                 if(currentFolder!=null){
 482                         List<FileResource> files = null;
 483                         if (currentFolder instanceof RestResourceWrapper) {
 484                                 RestResourceWrapper folder = (RestResourceWrapper) currentFolder;
 485                                 files = folder.getResource().getFiles();
 486                         }
 487                 }
 488                 inner.selectTab(0);
 489         }
 490
 491         /**
 492          * Display the 'loading' indicator.
 493          */
 494         public void showLoadingIndicator(String message, String path) {
 495                 if(path!=null){
 496                         String[] split = path.split("/");
 497                         message = message +" "+URL.decode(split[split.length-1]);
 498                 }
 499                 topPanel.getLoading().show(message);
 500         }
 501
 502         /**
 503          * Hide the 'loading' indicator.
 504          */
 505         public void hideLoadingIndicator() {
 506                 topPanel.getLoading().hide();
 507         }
 508
 509         /**
 510          * A native JavaScript method to reach out to the browser's window and
 511          * invoke its resizeTo() method.
 512          *
 513          * @param x the new width
 514          * @param y the new height
 515          */
 516         public static native void resizeTo(int x, int y) /*-{
 517                 $wnd.resizeTo(x,y);
 518         }-*/;
 519
 520         /**
 521          * A helper method that returns true if the user's list is currently visible
 522          * and false if it is hidden.
 523          *
 524          * @return true if the user list is visible
 525          */
 526         public boolean isUserListVisible() {
 527                 return inner.getTabBar().getSelectedTab() == 1;
 528         }
 529
 530         /**
 531          * Display an error message.
 532          *
 533          * @param msg the message to display
 534          */
 535         public void displayError(String msg) {
 536                 messagePanel.displayError(msg);
 537         }
 538
 539         /**
 540          * Display a warning message.
 541          *
 542          * @param msg the message to display
 543          */
 544         public void displayWarning(String msg) {
 545                 messagePanel.displayWarning(msg);
 546         }
 547
 548         /**
 549          * Display an informational message.
 550          *
 551          * @param msg the message to display
 552          */
 553         public void displayInformation(String msg) {
 554                 messagePanel.displayInformation(msg);
 555         }
 556
 557         /**
 558          * Retrieve the folders.
 559          *
 560          * @return the folders
 561
 562         public Folders getFolders() {
 563                 return folders;
 564         }*/
 565
 566         /**
 567          * Retrieve the currentSelection.
 568          *
 569          * @return the currentSelection
 570          */
 571         public Object getCurrentSelection() {
 572                 return currentSelection;
 573         }
 574
 575         /**
 576          * Modify the currentSelection.
 577          *
 578          * @param newCurrentSelection the currentSelection to set
 579          */
 580         public void setCurrentSelection(Object newCurrentSelection) {
 581                 currentSelection = newCurrentSelection;
 582         }
 583
 584         /**
 585          * Retrieve the fileList.
 586          *
 587          * @return the fileList
 588          */
 589         public FileList getFileList() {
 590                 return fileList;
 591         }
 592
 593         /**
 594          * Retrieve the topPanel.
 595          *
 596          * @return the topPanel
 597          */
 598         TopPanel getTopPanel() {
 599                 return topPanel;
 600         }
 601
 602         /**
 603          * Retrieve the clipboard.
 604          *
 605          * @return the clipboard
 606          */
 607         public Clipboard getClipboard() {
 608                 return clipboard;
 609         }
 610
 611         public StatusPanel getStatusPanel() {
 612                 return statusPanel;
 613         }
 614
 615         /**
 616          * Retrieve the userDetailsPanel.
 617          *
 618          * @return the userDetailsPanel
 619          */
 620         public UserDetailsPanel getUserDetailsPanel() {
 621                 return userDetailsPanel;
 622         }
 623
 624
 625
 626         public String getToken() {
 627                 return token;
 628         }
 629
 630         public String getWebDAVPassword() {
 631                 return webDAVPassword;
 632         }
 633
 634         /**
 635          * Retrieve the currentUserResource.
 636          *
 637          * @return the currentUserResource
 638          */
 639         public UserResource getCurrentUserResource() {
 640                 return currentUserResource;
 641         }
 642
 643         /**
 644          * Modify the currentUserResource.
 645          *
 646          * @param newUser the new currentUserResource
 647          */
 648         public void setCurrentUserResource(UserResource newUser) {
 649                 currentUserResource = newUser;
 650         }
 651
 652         public static native void preventIESelection() /*-{
 653                 $doc.body.onselectstart = function () { return false; };
 654         }-*/;
 655
 656         public static native void enableIESelection() /*-{
 657                 if ($doc.body.onselectstart != null)
 658                 $doc.body.onselectstart = null;
 659         }-*/;
 660
 661         /**
 662          * @return the absolute path of the API root URL
 663          */
 664         public String getApiPath() {
 665                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 666                 return conf.apiPath();
 667         }
 668
 669         /**
 670          * Convert server date to local time according to browser timezone
 671          * and format it according to localized pattern.
 672          * Time is always formatted to 24hr format.
 673          * NB: This assumes that server runs in UTC timezone. Otherwise
 674          * we would need to adjust for server time offset as well.
 675          *
 676          * @param date
 677          * @return String
 678          */
 679         public static String formatLocalDateTime(Date date) {
 680                 Date convertedDate = new Date(date.getTime() - date.getTimezoneOffset());
 681                 final DateTimeFormat dateFormatter = DateTimeFormat.getShortDateFormat();
 682                 final DateTimeFormat timeFormatter = DateTimeFormat.getFormat("HH:mm");
 683                 String datePart = dateFormatter.format(convertedDate);
 684                 String timePart = timeFormatter.format(convertedDate);
 685                 return datePart + " " + timePart;
 686         }
 687
 688         /**
 689          * History support for folder navigation
 690          * adds a new browser history entry
 691          *
 692          * @param key
 693          */
 694         public void updateHistory(String key){
 695 //              Replace any whitespace of the initial string to "+"
 696 //              String result = key.replaceAll("\\s","+");
 697 //              Add a new browser history entry.
 698 //              History.newItem(result);
 699                 History.newItem(key);
 700         }
 701
 702         /**
 703          * This method examines the token input and add a "/" at the end in case it's omitted.
 704          * This happens only in Files/trash/, Files/shared/, Files/others.
 705          *
 706          * @param tokenInput
 707          * @return the formated token with a "/" at the end or the same tokenInput parameter
 708          */
 709
 710         private String handleSpecialFolderNames(String tokenInput){
 711                 List<String> pathsToCheck = Arrays.asList("Files/trash", "Files/shared", "Files/others");
 712                 if(pathsToCheck.contains(tokenInput))
 713                         return tokenInput + "/";
 714                 return tokenInput;
 715
 716         }
 717
 718         /**
 719          * Reject illegal resource names, like '.' or '..' or slashes '/'.
 720          */
 721         static boolean isValidResourceName(String name) {
 722                 if (".".equals(name) || "..".equals(name) || name.contains("/"))
 723                         return false;
 724                 return true;
 725         }
 726
 727         public void putUserToMap(String _userName, String _userFullName){
 728                 userFullNameMap.put(_userName, _userFullName);
 729         }
 730
 731         public String findUserFullName(String _userName){
 732                 return userFullNameMap.get(_userName);
 733         }
 734         public String getUserFullName(String _userName) {
 735
 736         if (GSS.get().findUserFullName(_userName) == null)
 737                 //if there is no userFullName found then the map fills with the given _userName,
 738                 //so userFullName = _userName
 739                 GSS.get().putUserToMap(_userName, _userName);
 740         else if(GSS.get().findUserFullName(_userName).indexOf('@') != -1){
 741                 //if the userFullName = _userName the GetUserCommand updates the userFullName in the map
 742                 GetUserCommand guc = new GetUserCommand(_userName);
 743                 guc.execute();
 744         }
 745         return GSS.get().findUserFullName(_userName);
 746         }
 747         /**
 748          * Retrieve the treeView.
 749          *
 750          * @return the treeView
 751          */
 752         public CellTreeView getTreeView() {
 753                 return treeView;
 754         }
 755
 756         public void onResourceUpdate(RestResource resource,boolean clearSelection){
 757                 if(resource instanceof RestResourceWrapper || resource instanceof OtherUserResource || resource instanceof TrashResource || resource instanceof SharedResource){
 758                         if(getTreeView().getSelection()!=null&&getTreeView().getSelection().getUri().equals(resource.getUri()))
 759                                 showFileList(resource,clearSelection);
 760                 }
 761
 762         }
 763 }