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.event.dom.client.ContextMenuEvent;
  40 import com.google.gwt.event.dom.client.ContextMenuHandler;
  41 import com.google.gwt.event.shared.GwtEvent;
  42 import com.google.gwt.event.shared.GwtEvent.Type;
  43 import com.google.gwt.view.client.SelectionChangeEvent;
  44 import com.google.gwt.view.client.SingleSelectionModel;
  45 import gr.grnet.pithos.web.client.clipboard.Clipboard;
  46 import gr.grnet.pithos.web.client.commands.GetUserCommand;
  47 import gr.grnet.pithos.web.client.foldertree.AccountResource;
  48 import gr.grnet.pithos.web.client.foldertree.File;
  49 import gr.grnet.pithos.web.client.foldertree.Folder;
  50 import gr.grnet.pithos.web.client.foldertree.FolderTreeView;
  51 import gr.grnet.pithos.web.client.foldertree.FolderTreeViewModel;
  52 import gr.grnet.pithos.web.client.rest.GetRequest;
  53 import gr.grnet.pithos.web.client.rest.RestException;
  54 import gr.grnet.pithos.web.client.rest.resource.FileResource;
  55 import gr.grnet.pithos.web.client.rest.resource.OtherUserResource;
  56 import gr.grnet.pithos.web.client.rest.resource.RestResource;
  57 import gr.grnet.pithos.web.client.rest.resource.RestResourceWrapper;
  58 import gr.grnet.pithos.web.client.rest.resource.SharedResource;
  59 import gr.grnet.pithos.web.client.rest.resource.TrashResource;
  60 import gr.grnet.pithos.web.client.rest.resource.UserResource;
  61
  62 import java.util.ArrayList;
  63 import java.util.Arrays;
  64 import java.util.Date;
  65 import java.util.HashMap;
  66 import java.util.Iterator;
  67 import java.util.List;
  68
  69 import com.google.gwt.core.client.EntryPoint;
  70 import com.google.gwt.core.client.GWT;
  71 import com.google.gwt.event.logical.shared.ResizeEvent;
  72 import com.google.gwt.event.logical.shared.ResizeHandler;
  73 import com.google.gwt.event.logical.shared.SelectionEvent;
  74 import com.google.gwt.event.logical.shared.SelectionHandler;
  75 import com.google.gwt.http.client.URL;
  76 import com.google.gwt.i18n.client.DateTimeFormat;
  77 import com.google.gwt.resources.client.ClientBundle;
  78 import com.google.gwt.resources.client.ImageResource;
  79 import com.google.gwt.user.client.Cookies;
  80 import com.google.gwt.user.client.DOM;
  81 import com.google.gwt.user.client.Event;
  82 import com.google.gwt.user.client.History;
  83 import com.google.gwt.user.client.Window;
  84 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  85 import com.google.gwt.user.client.ui.DecoratedTabPanel;
  86 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  87 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
  88 import com.google.gwt.user.client.ui.RootPanel;
  89 import com.google.gwt.user.client.ui.TabPanel;
  90 import com.google.gwt.user.client.ui.VerticalPanel;
  91 import java.util.Set;
  92
  93 /**
  94  * Entry point classes define <code>onModuleLoad()</code>.
  95  */
  96 public class GSS implements EntryPoint, ResizeHandler {
  97
  98         /**
  99          * A constant that denotes the completion of an IncrementalCommand.
 100          */
 101         public static final boolean DONE = false;
 102
 103         public static final int VISIBLE_FILE_COUNT = 25;
 104
 105         /**
 106          * Instantiate an application-level image bundle. This object will provide
 107          * programmatic access to all the images needed by widgets.
 108          */
 109         private static Images images = (Images) GWT.create(Images.class);
 110
 111     public String getUsername() {
 112         return username;
 113     }
 114
 115     public void setAccount(AccountResource acct) {
 116         account = acct;
 117     }
 118
 119     public AccountResource getAccount() {
 120         return account;
 121     }
 122
 123     public void updateFolder(Folder f) {
 124         folderTreeView.updateFolder(f);
 125     }
 126
 127     /**
 128          * An aggregate image bundle that pulls together all the images for this
 129          * application into a single bundle.
 130          */
 131         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 {
 132
 133                 @Source("gr/grnet/pithos/resources/document.png")
 134                 ImageResource folders();
 135
 136                 @Source("gr/grnet/pithos/resources/edit_group_22.png")
 137                 ImageResource groups();
 138
 139                 @Source("gr/grnet/pithos/resources/search.png")
 140                 ImageResource search();
 141         }
 142
 143         /**
 144          * The single GSS instance.
 145          */
 146         private static GSS singleton;
 147
 148         /**
 149          * Gets the singleton GSS instance.
 150          *
 151          * @return the GSS object
 152          */
 153         public static GSS get() {
 154                 if (GSS.singleton == null)
 155                         GSS.singleton = new GSS();
 156                 return GSS.singleton;
 157         }
 158
 159         /**
 160          * The Application Clipboard implementation;
 161          */
 162         private Clipboard clipboard = new Clipboard();
 163
 164         private UserResource currentUserResource;
 165
 166         /**
 167          * The top panel that contains the menu bar.
 168          */
 169         private TopPanel topPanel;
 170
 171         /**
 172          * The panel that contains the various system messages.
 173          */
 174         private MessagePanel messagePanel = new MessagePanel(GSS.images);
 175
 176         /**
 177          * The bottom panel that contains the status bar.
 178          */
 179         private StatusPanel statusPanel = null;
 180
 181         /**
 182          * The top right panel that displays the logged in user details
 183          */
 184         private UserDetailsPanel userDetailsPanel = new UserDetailsPanel();
 185
 186         /**
 187          * The file list widget.
 188          */
 189         private FileList fileList;
 190
 191         /**
 192          * The tab panel that occupies the right side of the screen.
 193          */
 194         private TabPanel inner = new DecoratedTabPanel(){
 195
 196 //              public void onBrowserEvent(com.google.gwt.user.client.Event event) {
 197 //                      if (DOM.eventGetType(event) == Event.ONCONTEXTMENU){
 198 //                              if(isFileListShowing()){
 199 //                                      getFileList().showContextMenu(event);
 200 //                              }
 201 //                      }
 202 //              };
 203         };
 204
 205
 206         /**
 207          * The split panel that will contain the left and right panels.
 208          */
 209         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 210
 211         /**
 212          * The widget that displays the tree of folders.
 213          */
 214
 215         private CellTreeView treeView = null;
 216         /**
 217          * The currently selected item in the application, for use by the Edit menu
 218          * commands. Potential types are Folder, File, User and Group.
 219          */
 220         private Object currentSelection;
 221
 222
 223         /**
 224          * The WebDAV password of the current user
 225          */
 226         private String webDAVPassword;
 227
 228         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 229
 230     private String username = null;
 231
 232     /**
 233      * The authentication token of the current user.
 234      */
 235     private String token;
 236
 237     private SingleSelectionModel<Folder> folderTreeSelectionModel;
 238     private FolderTreeViewModel folderTreeViewModel;
 239     private FolderTreeView folderTreeView;
 240
 241     private AccountResource account;
 242
 243         @Override
 244         public void onModuleLoad() {
 245                 // Initialize the singleton before calling the constructors of the
 246                 // various widgets that might call GSS.get().
 247                 singleton = this;
 248                 if (parseUserCredentials())
 249             initialize();
 250         }
 251
 252     private void initialize() {
 253         topPanel = new TopPanel(GSS.images);
 254         topPanel.setWidth("100%");
 255
 256         messagePanel.setWidth("100%");
 257         messagePanel.setVisible(false);
 258
 259
 260         // Inner contains the various lists.
 261         inner.sinkEvents(Event.ONCONTEXTMENU);
 262         inner.setAnimationEnabled(true);
 263         inner.getTabBar().addStyleName("pithos-MainTabBar");
 264         inner.getDeckPanel().addStyleName("pithos-MainTabPanelBottom");
 265
 266         inner.setWidth("100%");
 267
 268         inner.addSelectionHandler(new SelectionHandler<Integer>() {
 269
 270             @Override
 271             public void onSelection(SelectionEvent<Integer> event) {
 272                 int tabIndex = event.getSelectedItem();
 273                 switch (tabIndex) {
 274                     case 0:
 275                         fileList.updateCurrentlyShowingStats();
 276                         break;
 277                 }
 278             }
 279         });
 280
 281         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 282         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 283             @Override
 284             public void onSelectionChange(SelectionChangeEvent event) {
 285                 Folder f = folderTreeSelectionModel.getSelectedObject();
 286                 updateFolder(f);
 287             }
 288         });
 289
 290         folderTreeViewModel = new FolderTreeViewModel(folderTreeSelectionModel);
 291         folderTreeView = new FolderTreeView(folderTreeViewModel);
 292
 293         fileList = new FileList(images, folderTreeView);
 294         inner.add(fileList, createHeaderHTML(AbstractImagePrototype.create(images.folders()), "Files"), true);
 295
 296         // Add the left and right panels to the split panel.
 297         splitPanel.setLeftWidget(folderTreeView);
 298         splitPanel.setRightWidget(inner);
 299         splitPanel.setSplitPosition("25%");
 300         splitPanel.setSize("100%", "100%");
 301         splitPanel.addStyleName("pithos-splitPanel");
 302
 303         // Create a dock panel that will contain the menu bar at the top,
 304         // the shortcuts to the left, the status bar at the bottom and the
 305         // right panel taking the rest.
 306         VerticalPanel outer = new VerticalPanel();
 307         outer.add(topPanel);
 308         outer.add(messagePanel);
 309         outer.add(splitPanel);
 310         statusPanel = new StatusPanel(GSS.images);
 311         outer.add(statusPanel);
 312         outer.setWidth("100%");
 313         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 314
 315         outer.setSpacing(4);
 316
 317         // Hook the window resize event, so that we can adjust the UI.
 318         Window.addResizeHandler(this);
 319         // Clear out the window's built-in margin, because we want to take
 320         // advantage of the entire client area.
 321         Window.setMargin("0px");
 322         // Finally, add the outer panel to the RootPanel, so that it will be
 323         // displayed.
 324         RootPanel.get().add(outer);
 325         // Call the window resized handler to get the initial sizes setup. Doing
 326         // this in a deferred command causes it to occur after all widgets'
 327         // sizes have been computed by the browser.
 328         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 329
 330             @Override
 331             public void execute() {
 332                 onWindowResized(Window.getClientHeight());
 333             }
 334         });
 335
 336         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 337             @Override
 338             public void execute() {
 339                 fetchAccount();
 340             }
 341         });
 342     }
 343
 344     public void showFiles(Folder f) {
 345         inner.selectTab(0);
 346         Set<File> files = f.getFiles();
 347         Iterator<File> iter = files.iterator();
 348         fetchFile(iter, files);
 349     }
 350
 351     private void fetchFile(final Iterator<File> iter, final Set<File> files) {
 352         if (iter.hasNext()) {
 353             File file = iter.next();
 354             String path = getApiPath() + username + "/" + file.getContainer() + "/" + file.getPath() + "?format=json";
 355             GetRequest<File> getFile = new GetRequest<File>(File.class, path, file) {
 356                 @Override
 357                 public void onSuccess(File result) {
 358                     fetchFile(iter, files);
 359                 }
 360
 361                 @Override
 362                 public void onError(Throwable t) {
 363                     GWT.log("Error getting file", t);
 364                     if (t instanceof RestException)
 365                         GSS.get().displayError("Error getting file: " + ((RestException) t).getHttpStatusText());
 366                     else
 367                         GSS.get().displayError("System error fetching file: " + t.getMessage());
 368                 }
 369             };
 370             getFile.setHeader("X-Auth-Token", "0000");
 371             Scheduler.get().scheduleDeferred(getFile);
 372         }
 373         else
 374             fileList.setFiles(new ArrayList<File>(files));
 375     }
 376
 377     /**
 378          * Parse and store the user credentials to the appropriate fields.
 379          */
 380         private boolean parseUserCredentials() {
 381                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 382                 String cookie = conf.authCookie();
 383                 String auth = Cookies.getCookie(cookie);
 384                 if (auth == null) {
 385                         authenticateUser();
 386             return false;
 387         }
 388         else {
 389             String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 390             if (authSplit.length != 2) {
 391                 authenticateUser();
 392                 return false;
 393             }
 394             else {
 395                 username = authSplit[0];
 396                 token = authSplit[1];
 397                 return true;
 398             }
 399         }
 400         }
 401
 402     /**
 403          * Redirect the user to the login page for authentication.
 404          */
 405         protected void authenticateUser() {
 406                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 407
 408 //        Window.Location.assign(GWT.getModuleBaseURL() + conf.loginUrl() + "?next=" + Window.Location.getHref());
 409         Cookies.setCookie(conf.authCookie(), "test" + conf.cookieSeparator() + "0000");
 410         Window.Location.assign(GWT.getModuleBaseURL() + "GSS.html");
 411         }
 412
 413     private void fetchAccount() {
 414         String path = getApiPath() + username + "?format=json";
 415
 416         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, path) {
 417             @Override
 418             public void onSuccess(AccountResource result) {
 419                 account = result;
 420                 statusPanel.displayStats(account);
 421                 folderTreeViewModel.initialize(account);
 422                 inner.selectTab(0);
 423             }
 424
 425             @Override
 426             public void onError(Throwable t) {
 427                 GWT.log("Error getting account", t);
 428                 if (t instanceof RestException)
 429                     GSS.get().displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 430                 else
 431                     GSS.get().displayError("System error fetching user data: " + t.getMessage());
 432             }
 433         };
 434         getAccount.setHeader("X-Auth-Token", token);
 435         Scheduler.get().scheduleDeferred(getAccount);
 436     }
 437
 438         /**
 439          * Clear the cookie and redirect the user to the logout page.
 440          */
 441         void logout() {
 442                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 443                 String cookie = conf.authCookie();
 444                 String domain = Window.Location.getHostName();
 445                 String path = Window.Location.getPath();
 446                 Cookies.setCookie(cookie, "", null, domain, path, false);
 447         String baseUrl = GWT.getModuleBaseURL();
 448         String homeUrl = baseUrl.substring(0, baseUrl.indexOf(path));
 449                 Window.Location.assign(homeUrl + conf.logoutUrl());
 450         }
 451
 452         /**
 453          * Creates an HTML fragment that places an image & caption together, for use
 454          * in a group header.
 455          *
 456          * @param imageProto an image prototype for an image
 457          * @param caption the group caption
 458          * @return the header HTML fragment
 459          */
 460         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 461                 String captionHTML = "<table class='caption' cellpadding='0' "
 462                 + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 463                 + "</td><td id =" + caption +" class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 464                 + caption + "</b></td></tr></table>";
 465                 return captionHTML;
 466         }
 467
 468         private void onWindowResized(int height) {
 469                 // Adjust the split panel to take up the available room in the window.
 470                 int newHeight = height - splitPanel.getAbsoluteTop() - 44;
 471                 if (newHeight < 1)
 472                         newHeight = 1;
 473                 splitPanel.setHeight("" + newHeight);
 474                 inner.setHeight("" + newHeight);
 475         }
 476
 477         @Override
 478         public void onResize(ResizeEvent event) {
 479                 int height = event.getHeight();
 480                 onWindowResized(height);
 481         }
 482
 483         public boolean isFileListShowing() {
 484                 int tab = inner.getTabBar().getSelectedTab();
 485                 if (tab == 0)
 486                         return true;
 487                 return false;
 488         }
 489
 490         public boolean isSearchResultsShowing() {
 491                 int tab = inner.getTabBar().getSelectedTab();
 492                 if (tab == 2)
 493                         return true;
 494                 return false;
 495         }
 496
 497         /**
 498          * Make the file list visible.
 499          *
 500          * @param update
 501          */
 502         public void showFileList(boolean update) {
 503                 if(update){
 504                         getTreeView().refreshCurrentNode(true);
 505                 }
 506                 else{
 507                         RestResource currentFolder = getTreeView().getSelection();
 508                         if(currentFolder!=null){
 509                                 showFileList(currentFolder);
 510                 }
 511                 }
 512
 513         }
 514
 515         public void showFileList(RestResource r) {
 516                 showFileList(r,true);
 517         }
 518
 519         public void showFileList(RestResource r, boolean clearSelection) {
 520                 RestResource currentFolder = r;
 521                 if(currentFolder!=null){
 522                         List<FileResource> files = null;
 523                         if (currentFolder instanceof RestResourceWrapper) {
 524                                 RestResourceWrapper folder = (RestResourceWrapper) currentFolder;
 525                                 files = folder.getResource().getFiles();
 526                         }
 527                 }
 528                 inner.selectTab(0);
 529         }
 530
 531         /**
 532          * Display the 'loading' indicator.
 533          */
 534         public void showLoadingIndicator(String message, String path) {
 535                 if(path!=null){
 536                         String[] split = path.split("/");
 537                         message = message +" "+URL.decode(split[split.length-1]);
 538                 }
 539                 topPanel.getLoading().show(message);
 540         }
 541
 542         /**
 543          * Hide the 'loading' indicator.
 544          */
 545         public void hideLoadingIndicator() {
 546                 topPanel.getLoading().hide();
 547         }
 548
 549         /**
 550          * A native JavaScript method to reach out to the browser's window and
 551          * invoke its resizeTo() method.
 552          *
 553          * @param x the new width
 554          * @param y the new height
 555          */
 556         public static native void resizeTo(int x, int y) /*-{
 557                 $wnd.resizeTo(x,y);
 558         }-*/;
 559
 560         /**
 561          * A helper method that returns true if the user's list is currently visible
 562          * and false if it is hidden.
 563          *
 564          * @return true if the user list is visible
 565          */
 566         public boolean isUserListVisible() {
 567                 return inner.getTabBar().getSelectedTab() == 1;
 568         }
 569
 570         /**
 571          * Display an error message.
 572          *
 573          * @param msg the message to display
 574          */
 575         public void displayError(String msg) {
 576                 messagePanel.displayError(msg);
 577         }
 578
 579         /**
 580          * Display a warning message.
 581          *
 582          * @param msg the message to display
 583          */
 584         public void displayWarning(String msg) {
 585                 messagePanel.displayWarning(msg);
 586         }
 587
 588         /**
 589          * Display an informational message.
 590          *
 591          * @param msg the message to display
 592          */
 593         public void displayInformation(String msg) {
 594                 messagePanel.displayInformation(msg);
 595         }
 596
 597         /**
 598          * Retrieve the folders.
 599          *
 600          * @return the folders
 601
 602         public Folders getFolders() {
 603                 return folders;
 604         }*/
 605
 606         /**
 607          * Retrieve the currentSelection.
 608          *
 609          * @return the currentSelection
 610          */
 611         public Object getCurrentSelection() {
 612                 return currentSelection;
 613         }
 614
 615         /**
 616          * Modify the currentSelection.
 617          *
 618          * @param newCurrentSelection the currentSelection to set
 619          */
 620         public void setCurrentSelection(Object newCurrentSelection) {
 621                 currentSelection = newCurrentSelection;
 622         }
 623
 624         /**
 625          * Retrieve the fileList.
 626          *
 627          * @return the fileList
 628          */
 629         public FileList getFileList() {
 630                 return fileList;
 631         }
 632
 633         /**
 634          * Retrieve the topPanel.
 635          *
 636          * @return the topPanel
 637          */
 638         TopPanel getTopPanel() {
 639                 return topPanel;
 640         }
 641
 642         /**
 643          * Retrieve the clipboard.
 644          *
 645          * @return the clipboard
 646          */
 647         public Clipboard getClipboard() {
 648                 return clipboard;
 649         }
 650
 651         public StatusPanel getStatusPanel() {
 652                 return statusPanel;
 653         }
 654
 655         /**
 656          * Retrieve the userDetailsPanel.
 657          *
 658          * @return the userDetailsPanel
 659          */
 660         public UserDetailsPanel getUserDetailsPanel() {
 661                 return userDetailsPanel;
 662         }
 663
 664
 665
 666         public String getToken() {
 667                 return token;
 668         }
 669
 670         public String getWebDAVPassword() {
 671                 return webDAVPassword;
 672         }
 673
 674         /**
 675          * Retrieve the currentUserResource.
 676          *
 677          * @return the currentUserResource
 678          */
 679         public UserResource getCurrentUserResource() {
 680                 return currentUserResource;
 681         }
 682
 683         /**
 684          * Modify the currentUserResource.
 685          *
 686          * @param newUser the new currentUserResource
 687          */
 688         public void setCurrentUserResource(UserResource newUser) {
 689                 currentUserResource = newUser;
 690         }
 691
 692         public static native void preventIESelection() /*-{
 693                 $doc.body.onselectstart = function () { return false; };
 694         }-*/;
 695
 696         public static native void enableIESelection() /*-{
 697                 if ($doc.body.onselectstart != null)
 698                 $doc.body.onselectstart = null;
 699         }-*/;
 700
 701         /**
 702          * @return the absolute path of the API root URL
 703          */
 704         public String getApiPath() {
 705                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 706                 return conf.apiPath();
 707         }
 708
 709         /**
 710          * Convert server date to local time according to browser timezone
 711          * and format it according to localized pattern.
 712          * Time is always formatted to 24hr format.
 713          * NB: This assumes that server runs in UTC timezone. Otherwise
 714          * we would need to adjust for server time offset as well.
 715          *
 716          * @param date
 717          * @return String
 718          */
 719         public static String formatLocalDateTime(Date date) {
 720                 Date convertedDate = new Date(date.getTime() - date.getTimezoneOffset());
 721                 final DateTimeFormat dateFormatter = DateTimeFormat.getShortDateFormat();
 722                 final DateTimeFormat timeFormatter = DateTimeFormat.getFormat("HH:mm");
 723                 String datePart = dateFormatter.format(convertedDate);
 724                 String timePart = timeFormatter.format(convertedDate);
 725                 return datePart + " " + timePart;
 726         }
 727
 728         /**
 729          * History support for folder navigation
 730          * adds a new browser history entry
 731          *
 732          * @param key
 733          */
 734         public void updateHistory(String key){
 735 //              Replace any whitespace of the initial string to "+"
 736 //              String result = key.replaceAll("\\s","+");
 737 //              Add a new browser history entry.
 738 //              History.newItem(result);
 739                 History.newItem(key);
 740         }
 741
 742         /**
 743          * This method examines the token input and add a "/" at the end in case it's omitted.
 744          * This happens only in Files/trash/, Files/shared/, Files/others.
 745          *
 746          * @param tokenInput
 747          * @return the formated token with a "/" at the end or the same tokenInput parameter
 748          */
 749
 750         private String handleSpecialFolderNames(String tokenInput){
 751                 List<String> pathsToCheck = Arrays.asList("Files/trash", "Files/shared", "Files/others");
 752                 if(pathsToCheck.contains(tokenInput))
 753                         return tokenInput + "/";
 754                 return tokenInput;
 755
 756         }
 757
 758         /**
 759          * Reject illegal resource names, like '.' or '..' or slashes '/'.
 760          */
 761         static boolean isValidResourceName(String name) {
 762                 if (".".equals(name) || "..".equals(name) || name.contains("/"))
 763                         return false;
 764                 return true;
 765         }
 766
 767         public void putUserToMap(String _userName, String _userFullName){
 768                 userFullNameMap.put(_userName, _userFullName);
 769         }
 770
 771         public String findUserFullName(String _userName){
 772                 return userFullNameMap.get(_userName);
 773         }
 774         public String getUserFullName(String _userName) {
 775
 776         if (GSS.get().findUserFullName(_userName) == null)
 777                 //if there is no userFullName found then the map fills with the given _userName,
 778                 //so userFullName = _userName
 779                 GSS.get().putUserToMap(_userName, _userName);
 780         else if(GSS.get().findUserFullName(_userName).indexOf('@') != -1){
 781                 //if the userFullName = _userName the GetUserCommand updates the userFullName in the map
 782                 GetUserCommand guc = new GetUserCommand(_userName);
 783                 guc.execute();
 784         }
 785         return GSS.get().findUserFullName(_userName);
 786         }
 787         /**
 788          * Retrieve the treeView.
 789          *
 790          * @return the treeView
 791          */
 792         public CellTreeView getTreeView() {
 793                 return treeView;
 794         }
 795
 796         public void onResourceUpdate(RestResource resource,boolean clearSelection){
 797                 if(resource instanceof RestResourceWrapper || resource instanceof OtherUserResource || resource instanceof TrashResource || resource instanceof SharedResource){
 798                         if(getTreeView().getSelection()!=null&&getTreeView().getSelection().getUri().equals(resource.getUri()))
 799                                 showFileList(resource,clearSelection);
 800                 }
 801
 802         }
 803 }