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

   1 /*
   2  * Copyright 2011 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above
  13  *      copyright notice, this list of conditions and the following
  14  *      disclaimer in the documentation and/or other materials
  15  *      provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * The views and conclusions contained in the software and
  31  * documentation are those of the authors and should not be
  32  * interpreted as representing official policies, either expressed
  33  * or implied, of GRNET S.A.
  34  */
  35 package gr.grnet.pithos.web.client;
  36
  37 import com.google.gwt.core.client.Scheduler;
  38 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
  39 import com.google.gwt.view.client.SelectionChangeEvent;
  40 import com.google.gwt.view.client.SingleSelectionModel;
  41 import gr.grnet.pithos.web.client.commands.GetUserCommand;
  42 import gr.grnet.pithos.web.client.foldertree.AccountResource;
  43 import gr.grnet.pithos.web.client.foldertree.File;
  44 import gr.grnet.pithos.web.client.foldertree.Folder;
  45 import gr.grnet.pithos.web.client.foldertree.FolderTreeView;
  46 import gr.grnet.pithos.web.client.foldertree.FolderTreeViewModel;
  47 import gr.grnet.pithos.web.client.rest.GetRequest;
  48 import gr.grnet.pithos.web.client.rest.RestException;
  49 import gr.grnet.pithos.web.client.rest.resource.FileResource;
  50 import gr.grnet.pithos.web.client.rest.resource.OtherUserResource;
  51 import gr.grnet.pithos.web.client.rest.resource.RestResource;
  52 import gr.grnet.pithos.web.client.rest.resource.RestResourceWrapper;
  53 import gr.grnet.pithos.web.client.rest.resource.SharedResource;
  54 import gr.grnet.pithos.web.client.rest.resource.TrashResource;
  55 import gr.grnet.pithos.web.client.rest.resource.UserResource;
  56
  57 import java.util.ArrayList;
  58 import java.util.Arrays;
  59 import java.util.Date;
  60 import java.util.HashMap;
  61 import java.util.Iterator;
  62 import java.util.List;
  63
  64 import com.google.gwt.core.client.EntryPoint;
  65 import com.google.gwt.core.client.GWT;
  66 import com.google.gwt.event.logical.shared.ResizeEvent;
  67 import com.google.gwt.event.logical.shared.ResizeHandler;
  68 import com.google.gwt.event.logical.shared.SelectionEvent;
  69 import com.google.gwt.event.logical.shared.SelectionHandler;
  70 import com.google.gwt.http.client.URL;
  71 import com.google.gwt.i18n.client.DateTimeFormat;
  72 import com.google.gwt.resources.client.ClientBundle;
  73 import com.google.gwt.resources.client.ImageResource;
  74 import com.google.gwt.user.client.Cookies;
  75 import com.google.gwt.user.client.Event;
  76 import com.google.gwt.user.client.History;
  77 import com.google.gwt.user.client.Window;
  78 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  79 import com.google.gwt.user.client.ui.DecoratedTabPanel;
  80 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  81 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
  82 import com.google.gwt.user.client.ui.RootPanel;
  83 import com.google.gwt.user.client.ui.TabPanel;
  84 import com.google.gwt.user.client.ui.VerticalPanel;
  85 import java.util.Set;
  86
  87 /**
  88  * Entry point classes define <code>onModuleLoad()</code>.
  89  */
  90 public class GSS implements EntryPoint, ResizeHandler {
  91
  92         /**
  93          * A constant that denotes the completion of an IncrementalCommand.
  94          */
  95         public static final boolean DONE = false;
  96
  97         public static final int VISIBLE_FILE_COUNT = 25;
  98
  99         /**
 100          * Instantiate an application-level image bundle. This object will provide
 101          * programmatic access to all the images needed by widgets.
 102          */
 103         private static Images images = (Images) GWT.create(Images.class);
 104
 105     public String getUsername() {
 106         return username;
 107     }
 108
 109     public void setAccount(AccountResource acct) {
 110         account = acct;
 111     }
 112
 113     public AccountResource getAccount() {
 114         return account;
 115     }
 116
 117     public void updateFolder(Folder f) {
 118         folderTreeView.updateFolder(f);
 119     }
 120
 121     /**
 122          * An aggregate image bundle that pulls together all the images for this
 123          * application into a single bundle.
 124          */
 125         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 {
 126
 127                 @Source("gr/grnet/pithos/resources/document.png")
 128                 ImageResource folders();
 129
 130                 @Source("gr/grnet/pithos/resources/edit_group_22.png")
 131                 ImageResource groups();
 132
 133                 @Source("gr/grnet/pithos/resources/search.png")
 134                 ImageResource search();
 135         }
 136
 137         /**
 138          * The single GSS instance.
 139          */
 140         private static GSS singleton;
 141
 142         /**
 143          * Gets the singleton GSS instance.
 144          *
 145          * @return the GSS object
 146          */
 147         public static GSS get() {
 148                 if (GSS.singleton == null)
 149                         GSS.singleton = new GSS();
 150                 return GSS.singleton;
 151         }
 152
 153         /**
 154          * The Application Clipboard implementation;
 155          */
 156         private Clipboard clipboard = new Clipboard();
 157
 158         private UserResource currentUserResource;
 159
 160         /**
 161          * The top panel that contains the menu bar.
 162          */
 163         private TopPanel topPanel;
 164
 165         /**
 166          * The panel that contains the various system messages.
 167          */
 168         private MessagePanel messagePanel = new MessagePanel(GSS.images);
 169
 170         /**
 171          * The bottom panel that contains the status bar.
 172          */
 173         private StatusPanel statusPanel = null;
 174
 175         /**
 176          * The top right panel that displays the logged in user details
 177          */
 178         private UserDetailsPanel userDetailsPanel = new UserDetailsPanel();
 179
 180         /**
 181          * The file list widget.
 182          */
 183         private FileList fileList;
 184
 185         /**
 186          * The tab panel that occupies the right side of the screen.
 187          */
 188         private TabPanel inner = new DecoratedTabPanel(){
 189
 190 //              public void onBrowserEvent(com.google.gwt.user.client.Event event) {
 191 //                      if (DOM.eventGetType(event) == Event.ONCONTEXTMENU){
 192 //                              if(isFileListShowing()){
 193 //                                      getFileList().showContextMenu(event);
 194 //                              }
 195 //                      }
 196 //              };
 197         };
 198
 199
 200         /**
 201          * The split panel that will contain the left and right panels.
 202          */
 203         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 204
 205         /**
 206          * The widget that displays the tree of folders.
 207          */
 208
 209         private CellTreeView treeView = null;
 210         /**
 211          * The currently selected item in the application, for use by the Edit menu
 212          * commands. Potential types are Folder, File, User and Group.
 213          */
 214         private Object currentSelection;
 215
 216
 217         /**
 218          * The WebDAV password of the current user
 219          */
 220         private String webDAVPassword;
 221
 222         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 223
 224     private String username = null;
 225
 226     /**
 227      * The authentication token of the current user.
 228      */
 229     private String token;
 230
 231     private SingleSelectionModel<Folder> folderTreeSelectionModel;
 232     private FolderTreeViewModel folderTreeViewModel;
 233     private FolderTreeView folderTreeView;
 234
 235     private AccountResource account;
 236
 237         @Override
 238         public void onModuleLoad() {
 239                 // Initialize the singleton before calling the constructors of the
 240                 // various widgets that might call GSS.get().
 241                 singleton = this;
 242                 if (parseUserCredentials())
 243             initialize();
 244         }
 245
 246     private void initialize() {
 247         topPanel = new TopPanel(GSS.images);
 248         topPanel.setWidth("100%");
 249
 250         messagePanel.setWidth("100%");
 251         messagePanel.setVisible(false);
 252
 253
 254         // Inner contains the various lists.
 255         inner.sinkEvents(Event.ONCONTEXTMENU);
 256         inner.setAnimationEnabled(true);
 257         inner.getTabBar().addStyleName("pithos-MainTabBar");
 258         inner.getDeckPanel().addStyleName("pithos-MainTabPanelBottom");
 259
 260         inner.setWidth("100%");
 261
 262         inner.addSelectionHandler(new SelectionHandler<Integer>() {
 263
 264             @Override
 265             public void onSelection(SelectionEvent<Integer> event) {
 266                 int tabIndex = event.getSelectedItem();
 267                 switch (tabIndex) {
 268                     case 0:
 269                         fileList.updateCurrentlyShowingStats();
 270                         break;
 271                 }
 272             }
 273         });
 274
 275         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 276         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 277             @Override
 278             public void onSelectionChange(SelectionChangeEvent event) {
 279                 Folder f = folderTreeSelectionModel.getSelectedObject();
 280                 updateFolder(f);
 281             }
 282         });
 283
 284         folderTreeViewModel = new FolderTreeViewModel(folderTreeSelectionModel);
 285         folderTreeView = new FolderTreeView(folderTreeViewModel);
 286
 287         fileList = new FileList(images, folderTreeView);
 288         inner.add(fileList, createHeaderHTML(AbstractImagePrototype.create(images.folders()), "Files"), true);
 289
 290         // Add the left and right panels to the split panel.
 291         splitPanel.setLeftWidget(folderTreeView);
 292         splitPanel.setRightWidget(inner);
 293         splitPanel.setSplitPosition("25%");
 294         splitPanel.setSize("100%", "100%");
 295         splitPanel.addStyleName("pithos-splitPanel");
 296
 297         // Create a dock panel that will contain the menu bar at the top,
 298         // the shortcuts to the left, the status bar at the bottom and the
 299         // right panel taking the rest.
 300         VerticalPanel outer = new VerticalPanel();
 301         outer.add(topPanel);
 302         outer.add(messagePanel);
 303         outer.add(splitPanel);
 304         statusPanel = new StatusPanel(GSS.images);
 305         outer.add(statusPanel);
 306         outer.setWidth("100%");
 307         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 308
 309         outer.setSpacing(4);
 310
 311         // Hook the window resize event, so that we can adjust the UI.
 312         Window.addResizeHandler(this);
 313         // Clear out the window's built-in margin, because we want to take
 314         // advantage of the entire client area.
 315         Window.setMargin("0px");
 316         // Finally, add the outer panel to the RootPanel, so that it will be
 317         // displayed.
 318         RootPanel.get().add(outer);
 319         // Call the window resized handler to get the initial sizes setup. Doing
 320         // this in a deferred command causes it to occur after all widgets'
 321         // sizes have been computed by the browser.
 322         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 323
 324             @Override
 325             public void execute() {
 326                 onWindowResized(Window.getClientHeight());
 327             }
 328         });
 329
 330         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 331             @Override
 332             public void execute() {
 333                 fetchAccount();
 334             }
 335         });
 336     }
 337
 338     public void showFiles(Folder f) {
 339         inner.selectTab(0);
 340         Set<File> files = f.getFiles();
 341         Iterator<File> iter = files.iterator();
 342         fetchFile(iter, files);
 343     }
 344
 345     private void fetchFile(final Iterator<File> iter, final Set<File> files) {
 346         if (iter.hasNext()) {
 347             File file = iter.next();
 348             String path = getApiPath() + username + "/" + file.getContainer() + "/" + file.getPath() + "?format=json";
 349             GetRequest<File> getFile = new GetRequest<File>(File.class, path, file) {
 350                 @Override
 351                 public void onSuccess(File result) {
 352                     fetchFile(iter, files);
 353                 }
 354
 355                 @Override
 356                 public void onError(Throwable t) {
 357                     GWT.log("Error getting file", t);
 358                     if (t instanceof RestException)
 359                         GSS.get().displayError("Error getting file: " + ((RestException) t).getHttpStatusText());
 360                     else
 361                         GSS.get().displayError("System error fetching file: " + t.getMessage());
 362                 }
 363             };
 364             getFile.setHeader("X-Auth-Token", "0000");
 365             Scheduler.get().scheduleDeferred(getFile);
 366         }
 367         else
 368             fileList.setFiles(new ArrayList<File>(files));
 369     }
 370
 371     /**
 372          * Parse and store the user credentials to the appropriate fields.
 373          */
 374         private boolean parseUserCredentials() {
 375                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 376                 String cookie = conf.authCookie();
 377                 String auth = Cookies.getCookie(cookie);
 378                 if (auth == null) {
 379                         authenticateUser();
 380             return false;
 381         }
 382         else {
 383             String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 384             if (authSplit.length != 2) {
 385                 authenticateUser();
 386                 return false;
 387             }
 388             else {
 389                 username = authSplit[0];
 390                 token = authSplit[1];
 391                 return true;
 392             }
 393         }
 394         }
 395
 396     /**
 397          * Redirect the user to the login page for authentication.
 398          */
 399         protected void authenticateUser() {
 400                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 401
 402 //        Window.Location.assign(GWT.getModuleBaseURL() + conf.loginUrl() + "?next=" + Window.Location.getHref());
 403         Cookies.setCookie(conf.authCookie(), "test" + conf.cookieSeparator() + "0000");
 404         Window.Location.assign(GWT.getModuleBaseURL() + "GSS.html");
 405         }
 406
 407     private void fetchAccount() {
 408         String path = getApiPath() + username + "?format=json";
 409
 410         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, path) {
 411             @Override
 412             public void onSuccess(AccountResource result) {
 413                 account = result;
 414                 statusPanel.displayStats(account);
 415                 folderTreeViewModel.initialize(account);
 416                 inner.selectTab(0);
 417             }
 418
 419             @Override
 420             public void onError(Throwable t) {
 421                 GWT.log("Error getting account", t);
 422                 if (t instanceof RestException)
 423                     GSS.get().displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 424                 else
 425                     GSS.get().displayError("System error fetching user data: " + t.getMessage());
 426             }
 427         };
 428         getAccount.setHeader("X-Auth-Token", token);
 429         Scheduler.get().scheduleDeferred(getAccount);
 430     }
 431
 432         /**
 433          * Clear the cookie and redirect the user to the logout page.
 434          */
 435         void logout() {
 436                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 437                 String cookie = conf.authCookie();
 438                 String domain = Window.Location.getHostName();
 439                 String path = Window.Location.getPath();
 440                 Cookies.setCookie(cookie, "", null, domain, path, false);
 441         String baseUrl = GWT.getModuleBaseURL();
 442         String homeUrl = baseUrl.substring(0, baseUrl.indexOf(path));
 443                 Window.Location.assign(homeUrl + conf.logoutUrl());
 444         }
 445
 446         /**
 447          * Creates an HTML fragment that places an image & caption together, for use
 448          * in a group header.
 449          *
 450          * @param imageProto an image prototype for an image
 451          * @param caption the group caption
 452          * @return the header HTML fragment
 453          */
 454         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 455                 String captionHTML = "<table class='caption' cellpadding='0' "
 456                 + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 457                 + "</td><td id =" + caption +" class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 458                 + caption + "</b></td></tr></table>";
 459                 return captionHTML;
 460         }
 461
 462         private void onWindowResized(int height) {
 463                 // Adjust the split panel to take up the available room in the window.
 464                 int newHeight = height - splitPanel.getAbsoluteTop() - 44;
 465                 if (newHeight < 1)
 466                         newHeight = 1;
 467                 splitPanel.setHeight("" + newHeight);
 468                 inner.setHeight("" + newHeight);
 469         }
 470
 471         @Override
 472         public void onResize(ResizeEvent event) {
 473                 int height = event.getHeight();
 474                 onWindowResized(height);
 475         }
 476
 477         public boolean isFileListShowing() {
 478                 int tab = inner.getTabBar().getSelectedTab();
 479                 if (tab == 0)
 480                         return true;
 481                 return false;
 482         }
 483
 484         public boolean isSearchResultsShowing() {
 485                 int tab = inner.getTabBar().getSelectedTab();
 486                 if (tab == 2)
 487                         return true;
 488                 return false;
 489         }
 490
 491         /**
 492          * Make the file list visible.
 493          *
 494          * @param update
 495          */
 496         public void showFileList(boolean update) {
 497                 if(update){
 498                         getTreeView().refreshCurrentNode(true);
 499                 }
 500                 else{
 501                         RestResource currentFolder = getTreeView().getSelection();
 502                         if(currentFolder!=null){
 503                                 showFileList(currentFolder);
 504                 }
 505                 }
 506
 507         }
 508
 509         public void showFileList(RestResource r) {
 510                 showFileList(r,true);
 511         }
 512
 513         public void showFileList(RestResource r, boolean clearSelection) {
 514                 RestResource currentFolder = r;
 515                 if(currentFolder!=null){
 516                         List<FileResource> files = null;
 517                         if (currentFolder instanceof RestResourceWrapper) {
 518                                 RestResourceWrapper folder = (RestResourceWrapper) currentFolder;
 519                                 files = folder.getResource().getFiles();
 520                         }
 521                 }
 522                 inner.selectTab(0);
 523         }
 524
 525         /**
 526          * Display the 'loading' indicator.
 527          */
 528         public void showLoadingIndicator(String message, String path) {
 529                 if(path!=null){
 530                         String[] split = path.split("/");
 531                         message = message +" "+URL.decode(split[split.length-1]);
 532                 }
 533                 topPanel.getLoading().show(message);
 534         }
 535
 536         /**
 537          * Hide the 'loading' indicator.
 538          */
 539         public void hideLoadingIndicator() {
 540                 topPanel.getLoading().hide();
 541         }
 542
 543         /**
 544          * A native JavaScript method to reach out to the browser's window and
 545          * invoke its resizeTo() method.
 546          *
 547          * @param x the new width
 548          * @param y the new height
 549          */
 550         public static native void resizeTo(int x, int y) /*-{
 551                 $wnd.resizeTo(x,y);
 552         }-*/;
 553
 554         /**
 555          * A helper method that returns true if the user's list is currently visible
 556          * and false if it is hidden.
 557          *
 558          * @return true if the user list is visible
 559          */
 560         public boolean isUserListVisible() {
 561                 return inner.getTabBar().getSelectedTab() == 1;
 562         }
 563
 564         /**
 565          * Display an error message.
 566          *
 567          * @param msg the message to display
 568          */
 569         public void displayError(String msg) {
 570                 messagePanel.displayError(msg);
 571         }
 572
 573         /**
 574          * Display a warning message.
 575          *
 576          * @param msg the message to display
 577          */
 578         public void displayWarning(String msg) {
 579                 messagePanel.displayWarning(msg);
 580         }
 581
 582         /**
 583          * Display an informational message.
 584          *
 585          * @param msg the message to display
 586          */
 587         public void displayInformation(String msg) {
 588                 messagePanel.displayInformation(msg);
 589         }
 590
 591         /**
 592          * Retrieve the folders.
 593          *
 594          * @return the folders
 595
 596         public Folders getFolders() {
 597                 return folders;
 598         }*/
 599
 600         /**
 601          * Retrieve the currentSelection.
 602          *
 603          * @return the currentSelection
 604          */
 605         public Object getCurrentSelection() {
 606                 return currentSelection;
 607         }
 608
 609         /**
 610          * Modify the currentSelection.
 611          *
 612          * @param newCurrentSelection the currentSelection to set
 613          */
 614         public void setCurrentSelection(Object newCurrentSelection) {
 615                 currentSelection = newCurrentSelection;
 616         }
 617
 618         /**
 619          * Retrieve the fileList.
 620          *
 621          * @return the fileList
 622          */
 623         public FileList getFileList() {
 624                 return fileList;
 625         }
 626
 627         /**
 628          * Retrieve the topPanel.
 629          *
 630          * @return the topPanel
 631          */
 632         TopPanel getTopPanel() {
 633                 return topPanel;
 634         }
 635
 636         /**
 637          * Retrieve the clipboard.
 638          *
 639          * @return the clipboard
 640          */
 641         public Clipboard getClipboard() {
 642                 return clipboard;
 643         }
 644
 645         public StatusPanel getStatusPanel() {
 646                 return statusPanel;
 647         }
 648
 649         /**
 650          * Retrieve the userDetailsPanel.
 651          *
 652          * @return the userDetailsPanel
 653          */
 654         public UserDetailsPanel getUserDetailsPanel() {
 655                 return userDetailsPanel;
 656         }
 657
 658
 659
 660         public String getToken() {
 661                 return token;
 662         }
 663
 664         public String getWebDAVPassword() {
 665                 return webDAVPassword;
 666         }
 667
 668         /**
 669          * Retrieve the currentUserResource.
 670          *
 671          * @return the currentUserResource
 672          */
 673         public UserResource getCurrentUserResource() {
 674                 return currentUserResource;
 675         }
 676
 677         /**
 678          * Modify the currentUserResource.
 679          *
 680          * @param newUser the new currentUserResource
 681          */
 682         public void setCurrentUserResource(UserResource newUser) {
 683                 currentUserResource = newUser;
 684         }
 685
 686         public static native void preventIESelection() /*-{
 687                 $doc.body.onselectstart = function () { return false; };
 688         }-*/;
 689
 690         public static native void enableIESelection() /*-{
 691                 if ($doc.body.onselectstart != null)
 692                 $doc.body.onselectstart = null;
 693         }-*/;
 694
 695         /**
 696          * @return the absolute path of the API root URL
 697          */
 698         public String getApiPath() {
 699                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 700                 return conf.apiPath();
 701         }
 702
 703         /**
 704          * Convert server date to local time according to browser timezone
 705          * and format it according to localized pattern.
 706          * Time is always formatted to 24hr format.
 707          * NB: This assumes that server runs in UTC timezone. Otherwise
 708          * we would need to adjust for server time offset as well.
 709          *
 710          * @param date
 711          * @return String
 712          */
 713         public static String formatLocalDateTime(Date date) {
 714                 Date convertedDate = new Date(date.getTime() - date.getTimezoneOffset());
 715                 final DateTimeFormat dateFormatter = DateTimeFormat.getShortDateFormat();
 716                 final DateTimeFormat timeFormatter = DateTimeFormat.getFormat("HH:mm");
 717                 String datePart = dateFormatter.format(convertedDate);
 718                 String timePart = timeFormatter.format(convertedDate);
 719                 return datePart + " " + timePart;
 720         }
 721
 722         /**
 723          * History support for folder navigation
 724          * adds a new browser history entry
 725          *
 726          * @param key
 727          */
 728         public void updateHistory(String key){
 729 //              Replace any whitespace of the initial string to "+"
 730 //              String result = key.replaceAll("\\s","+");
 731 //              Add a new browser history entry.
 732 //              History.newItem(result);
 733                 History.newItem(key);
 734         }
 735
 736         /**
 737          * This method examines the token input and add a "/" at the end in case it's omitted.
 738          * This happens only in Files/trash/, Files/shared/, Files/others.
 739          *
 740          * @param tokenInput
 741          * @return the formated token with a "/" at the end or the same tokenInput parameter
 742          */
 743
 744         private String handleSpecialFolderNames(String tokenInput){
 745                 List<String> pathsToCheck = Arrays.asList("Files/trash", "Files/shared", "Files/others");
 746                 if(pathsToCheck.contains(tokenInput))
 747                         return tokenInput + "/";
 748                 return tokenInput;
 749
 750         }
 751
 752         /**
 753          * Reject illegal resource names, like '.' or '..' or slashes '/'.
 754          */
 755         static boolean isValidResourceName(String name) {
 756                 if (".".equals(name) || "..".equals(name) || name.contains("/"))
 757                         return false;
 758                 return true;
 759         }
 760
 761         public void putUserToMap(String _userName, String _userFullName){
 762                 userFullNameMap.put(_userName, _userFullName);
 763         }
 764
 765         public String findUserFullName(String _userName){
 766                 return userFullNameMap.get(_userName);
 767         }
 768         public String getUserFullName(String _userName) {
 769
 770         if (GSS.get().findUserFullName(_userName) == null)
 771                 //if there is no userFullName found then the map fills with the given _userName,
 772                 //so userFullName = _userName
 773                 GSS.get().putUserToMap(_userName, _userName);
 774         else if(GSS.get().findUserFullName(_userName).indexOf('@') != -1){
 775                 //if the userFullName = _userName the GetUserCommand updates the userFullName in the map
 776                 GetUserCommand guc = new GetUserCommand(_userName);
 777                 guc.execute();
 778         }
 779         return GSS.get().findUserFullName(_userName);
 780         }
 781         /**
 782          * Retrieve the treeView.
 783          *
 784          * @return the treeView
 785          */
 786         public CellTreeView getTreeView() {
 787                 return treeView;
 788         }
 789
 790         public void onResourceUpdate(RestResource resource,boolean clearSelection){
 791                 if(resource instanceof RestResourceWrapper || resource instanceof OtherUserResource || resource instanceof TrashResource || resource instanceof SharedResource){
 792                         if(getTreeView().getSelection()!=null&&getTreeView().getSelection().getUri().equals(resource.getUri()))
 793                                 showFileList(resource,clearSelection);
 794                 }
 795
 796         }
 797 }