code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/GSS.java

   1 /*
   2  * Copyright 2007, 2008, 2009, 2010 Electronic Business Systems Ltd.
   3  *
   4  * This file is part of GSS.
   5  *
   6  * GSS is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GSS is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GSS.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 package gr.ebs.gss.client;
  20
  21 import gr.ebs.gss.client.clipboard.Clipboard;
  22 import gr.ebs.gss.client.dnd.DnDFocusPanel;
  23 import gr.ebs.gss.client.dnd.DnDSimpleFocusPanel;
  24 import gr.ebs.gss.client.rest.GetCommand;
  25 import gr.ebs.gss.client.rest.RestException;
  26 import gr.ebs.gss.client.rest.resource.FileResource;
  27 import gr.ebs.gss.client.rest.resource.FolderResource;
  28 import gr.ebs.gss.client.rest.resource.TrashResource;
  29 import gr.ebs.gss.client.rest.resource.UserResource;
  30
  31 import java.util.HashMap;
  32 import java.util.Iterator;
  33 import java.util.List;
  34 import java.util.Map;
  35
  36 import com.allen_sauer.gwt.dnd.client.DragContext;
  37 import com.allen_sauer.gwt.dnd.client.PickupDragController;
  38 import com.allen_sauer.gwt.dnd.client.VetoDragException;
  39 import com.google.gwt.core.client.EntryPoint;
  40 import com.google.gwt.core.client.GWT;
  41 import com.google.gwt.event.logical.shared.ResizeEvent;
  42 import com.google.gwt.event.logical.shared.ResizeHandler;
  43 import com.google.gwt.event.logical.shared.SelectionEvent;
  44 import com.google.gwt.event.logical.shared.SelectionHandler;
  45 import com.google.gwt.event.logical.shared.ValueChangeEvent;
  46 import com.google.gwt.event.logical.shared.ValueChangeHandler;
  47 import com.google.gwt.resources.client.ClientBundle;
  48 import com.google.gwt.resources.client.ImageResource;
  49 import com.google.gwt.user.client.Command;
  50 import com.google.gwt.user.client.Cookies;
  51 import com.google.gwt.user.client.DOM;
  52 import com.google.gwt.user.client.DeferredCommand;
  53 import com.google.gwt.user.client.History;
  54 import com.google.gwt.user.client.Window;
  55 import com.google.gwt.user.client.ui.AbsolutePanel;
  56 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  57 import com.google.gwt.user.client.ui.DecoratedTabPanel;
  58 import com.google.gwt.user.client.ui.DockPanel;
  59 import com.google.gwt.user.client.ui.HTML;
  60 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  61 import com.google.gwt.user.client.ui.HasVerticalAlignment;
  62 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
  63 import com.google.gwt.user.client.ui.Label;
  64 import com.google.gwt.user.client.ui.RootPanel;
  65 import com.google.gwt.user.client.ui.TabPanel;
  66 import com.google.gwt.user.client.ui.TreeItem;
  67 import com.google.gwt.user.client.ui.VerticalPanel;
  68 import com.google.gwt.user.client.ui.Widget;
  69
  70 /**
  71  * Entry point classes define <code>onModuleLoad()</code>.
  72  */
  73 public class GSS implements EntryPoint, ResizeHandler {
  74
  75         /**
  76          * A constant that denotes the completion of an IncrementalCommand.
  77          */
  78         public static final boolean DONE = false;
  79
  80         public static final int VISIBLE_FILE_COUNT = 100;
  81
  82         /**
  83          * Instantiate an application-level image bundle. This object will provide
  84          * programmatic access to all the images needed by widgets.
  85          */
  86         private static Images images = (Images) GWT.create(Images.class);
  87
  88         private GlassPanel glassPanel = new GlassPanel();
  89
  90         /**
  91          * An aggregate image bundle that pulls together all the images for this
  92          * application into a single bundle.
  93          */
  94         public interface Images extends ClientBundle, TopPanel.Images, StatusPanel.Images, FileMenu.Images, EditMenu.Images, SettingsMenu.Images, GroupMenu.Images, FilePropertiesDialog.Images, MessagePanel.Images, FileList.Images, SearchResults.Images, Search.Images, Groups.Images, Folders.Images {
  95
  96                 @Source("gr/ebs/gss/resources/document.png")
  97                 ImageResource folders();
  98
  99                 @Source("gr/ebs/gss/resources/edit_group_22.png")
 100                 ImageResource groups();
 101
 102                 @Source("gr/ebs/gss/resources/search.png")
 103                 ImageResource search();
 104         }
 105
 106         /**
 107          * The single GSS instance.
 108          */
 109         private static GSS singleton;
 110
 111         /**
 112          * Gets the singleton GSS instance.
 113          *
 114          * @return the GSS object
 115          */
 116         public static GSS get() {
 117                 if (GSS.singleton == null)
 118                         GSS.singleton = new GSS();
 119                 return GSS.singleton;
 120         }
 121
 122         /**
 123          * The Application Clipboard implementation;
 124          */
 125         private Clipboard clipboard = new Clipboard();
 126
 127         private UserResource currentUserResource;
 128
 129         /**
 130          * The top panel that contains the menu bar.
 131          */
 132         private TopPanel topPanel;
 133
 134         /**
 135          * The panel that contains the various system messages.
 136          */
 137         private MessagePanel messagePanel = new MessagePanel(GSS.images);
 138
 139         /**
 140          * The bottom panel that contains the status bar.
 141          */
 142         private StatusPanel statusPanel = new StatusPanel(GSS.images);
 143
 144         /**
 145          * The top right panel that displays the logged in user details
 146          */
 147         private UserDetailsPanel userDetailsPanel = new UserDetailsPanel();
 148
 149         /**
 150          * The file list widget.
 151          */
 152         private FileList fileList;
 153
 154         /**
 155          * The group list widget.
 156          */
 157         private Groups groups = new Groups(images);
 158
 159         /**
 160          * The search result widget.
 161          */
 162         private SearchResults searchResults;
 163
 164         /**
 165          * The tab panel that occupies the right side of the screen.
 166          */
 167         private TabPanel inner = new DecoratedTabPanel();
 168
 169         /**
 170          * The split panel that will contain the left and right panels.
 171          */
 172         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 173
 174         /**
 175          * The horizontal panel that will contain the search and status panels.
 176          */
 177         private DockPanel searchStatus = new DockPanel();
 178
 179         /**
 180          * The search widget.
 181          */
 182         private Search search;
 183
 184         /**
 185          * The widget that displays the tree of folders.
 186          */
 187         private Folders folders = new Folders(images);
 188
 189         /**
 190          * The currently selected item in the application, for use by the Edit menu
 191          * commands. Potential types are Folder, File, User and Group.
 192          */
 193         private Object currentSelection;
 194
 195         /**
 196          * The authentication token of the current user.
 197          */
 198         private String token;
 199
 200         /**
 201          * A map that stores a set of String URI and the corresponding object
 202          * in order history functionality to be implemented.
 203          */
 204         private Map<String, Object> map = new HashMap<String, Object>();
 205
 206         /**
 207          * The WebDAV password of the current user
 208          */
 209         private String webDAVPassword;
 210
 211         private PickupDragController dragController;
 212
 213         public void onModuleLoad() {
 214                 // Initialize the singleton before calling the constructors of the
 215                 // various widgets that might call GSS.get().
 216                 singleton = this;
 217                 RootPanel.get().add(glassPanel, 0, 0);
 218                 parseUserCredentials();
 219                 dragController = new PickupDragController(RootPanel.get(), false) {
 220
 221                         @Override
 222                         public void previewDragStart() throws VetoDragException {
 223                                 super.previewDragStart();
 224                                 if (context.selectedWidgets.isEmpty())
 225                                         throw new VetoDragException();
 226
 227                                 if (context.draggable != null)
 228                                         if (context.draggable instanceof DnDFocusPanel) {
 229                                                 DnDFocusPanel toDrop = (DnDFocusPanel) context.draggable;
 230                                                 // prevent drag and drop for trashed files and for
 231                                                 // unselected tree items
 232                                                 if (toDrop.getFiles() != null && folders.isTrashItem(folders.getCurrent()))
 233                                                         throw new VetoDragException();
 234                                                 else if (toDrop.getItem() != null && !toDrop.getItem().equals(folders.getCurrent()))
 235                                                         throw new VetoDragException();
 236                                                 else if (toDrop.getItem() != null && !toDrop.getItem().isDraggable())
 237                                                         throw new VetoDragException();
 238
 239                                         } else if (context.draggable instanceof DnDSimpleFocusPanel) {
 240                                                 DnDSimpleFocusPanel toDrop = (DnDSimpleFocusPanel) context.draggable;
 241                                                 // prevent drag and drop for trashed files and for
 242                                                 // unselected tree items
 243                                                 if (toDrop.getFiles() != null && folders.isTrashItem(folders.getCurrent()))
 244                                                         throw new VetoDragException();
 245                                         }
 246                         }
 247
 248                         @Override
 249                         protected Widget newDragProxy(DragContext aContext) {
 250                                 AbsolutePanel container = new AbsolutePanel();
 251                                 DOM.setStyleAttribute(container.getElement(), "overflow", "visible");
 252                                 for (Iterator iterator = aContext.selectedWidgets.iterator(); iterator.hasNext();) {
 253                                         HTML html = null;
 254                                         Widget widget = (Widget) iterator.next();
 255                                         if (widget instanceof DnDFocusPanel) {
 256                                                 DnDFocusPanel book = (DnDFocusPanel) widget;
 257                                                 html = book.cloneHTML();
 258                                         } else if (widget instanceof DnDSimpleFocusPanel) {
 259                                                 DnDSimpleFocusPanel book = (DnDSimpleFocusPanel) widget;
 260                                                 html = book.cloneHTML();
 261                                         }
 262                                         if (html == null)
 263                                                 container.add(new Label("Drag ME"));
 264                                         else
 265                                                 container.add(html);
 266                                 }
 267                                 return container;
 268                         }
 269                 };
 270                 dragController.setBehaviorDragProxy(true);
 271                 dragController.setBehaviorMultipleSelection(false);
 272                 topPanel = new TopPanel(GSS.images);
 273                 topPanel.setWidth("100%");
 274
 275                 messagePanel.setWidth("100%");
 276                 messagePanel.setVisible(false);
 277
 278                 search = new Search(images);
 279                 searchStatus.add(search, DockPanel.WEST);
 280                 searchStatus.add(userDetailsPanel, DockPanel.EAST);
 281                 searchStatus.setCellHorizontalAlignment(userDetailsPanel, HasHorizontalAlignment.ALIGN_RIGHT);
 282                 searchStatus.setCellVerticalAlignment(search, HasVerticalAlignment.ALIGN_MIDDLE);
 283                 searchStatus.setCellVerticalAlignment(userDetailsPanel, HasVerticalAlignment.ALIGN_MIDDLE);
 284                 searchStatus.setWidth("100%");
 285
 286                 fileList = new FileList(images);
 287
 288                 searchResults = new SearchResults(images);
 289
 290                 // Inner contains the various lists.
 291                 inner.setAnimationEnabled(true);
 292                 inner.getTabBar().addStyleName("gss-MainTabBar");
 293                 inner.getDeckPanel().addStyleName("gss-MainTabPanelBottom");
 294                 inner.add(fileList, createHeaderHTML(AbstractImagePrototype.create(images.folders()), "Files"), true);
 295
 296                 inner.add(groups, createHeaderHTML(AbstractImagePrototype.create(images.groups()), "Groups"), true);
 297                 inner.add(searchResults, createHeaderHTML(AbstractImagePrototype.create(images.search()), "Search Results"), true);
 298                 inner.setWidth("100%");
 299                 inner.selectTab(0);
 300
 301                 inner.addSelectionHandler(new SelectionHandler<Integer>() {
 302
 303                         @Override
 304                         public void onSelection(SelectionEvent<Integer> event) {
 305                                 int tabIndex = event.getSelectedItem();
 306                                 TreeItem treeItem = GSS.get().getFolders().getCurrent();
 307                                 switch (tabIndex) {
 308                                         case 0:
 309 //                                              Files tab selected
 310                                                 fileList.clearSelectedRows();
 311                                                 fileList.updateCurrentlyShowingStats();
 312                                                 break;
 313                                         case 1:
 314 //                                              Groups tab selected
 315                                                 groups.updateCurrentlyShowingStats();
 316                                         updateHistory("Groups", treeItem);
 317                                                 break;
 318                                         case 2:
 319 //                                              Search tab selected
 320                                                 searchResults.clearSelectedRows();
 321                                                 searchResults.updateCurrentlyShowingStats();
 322                                         updateHistory("Search", treeItem);
 323                                                 break;
 324                                 }
 325                         }
 326                 });
 327 //              If the application starts with no history token, redirect to a new "Files" state
 328                 String initToken = History.getToken();
 329                 if(initToken.length() == 0)
 330                         History.newItem("Files");
 331
 332 //                 Add history listener to handle any history events
 333                    History.addValueChangeHandler(new ValueChangeHandler<String>() {
 334                               public void onValueChange(ValueChangeEvent<String> event) {
 335                                 String historyToken = event.getValue();
 336                                 try {
 337                                         if(historyToken.equals("Search"))
 338                                                 inner.selectTab(2);
 339                                         else if(historyToken.equals("Groups"))
 340                                                 inner.selectTab(1);
 341                                         else if(historyToken.equals("Files")|| historyToken.length()==0)
 342                                                 inner.selectTab(0);
 343                                                 else
 344                                                         SelectionEvent.fire(GSS.get().getFolders().getPopupTree(), (TreeItem) getHistoryItem(historyToken));
 345                                         } catch (IndexOutOfBoundsException e) {
 346                                                 inner.selectTab(0);
 347                                                 }
 348                                         }
 349                               });
 350
 351                 // Add the left and right panels to the split panel.
 352                 splitPanel.setLeftWidget(folders);
 353                 splitPanel.setRightWidget(inner);
 354                 splitPanel.setSplitPosition("25%");
 355                 splitPanel.setSize("100%", "100%");
 356                 splitPanel.addStyleName("gss-splitPanel");
 357
 358                 // Create a dock panel that will contain the menu bar at the top,
 359                 // the shortcuts to the left, the status bar at the bottom and the
 360                 // right panel taking the rest.
 361                 VerticalPanel outer = new VerticalPanel();
 362                 outer.add(topPanel);
 363                 outer.add(searchStatus);
 364                 outer.add(messagePanel);
 365                 outer.add(splitPanel);
 366                 outer.add(statusPanel);
 367                 outer.setWidth("100%");
 368                 outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 369
 370                 outer.setSpacing(4);
 371
 372                 // Hook the window resize event, so that we can adjust the UI.
 373                 Window.addResizeHandler(this);
 374                 // Clear out the window's built-in margin, because we want to take
 375                 // advantage of the entire client area.
 376                 Window.setMargin("0px");
 377                 // Finally, add the outer panel to the RootPanel, so that it will be
 378                 // displayed.
 379                 RootPanel.get().add(outer);
 380                 // Call the window resized handler to get the initial sizes setup. Doing
 381                 // this in a deferred command causes it to occur after all widgets'
 382                 // sizes have been computed by the browser.
 383                 DeferredCommand.addCommand(new Command() {
 384
 385                         public void execute() {
 386                                 onWindowResized(Window.getClientHeight());
 387                         }
 388                 });
 389         }
 390
 391         /**
 392          * Fetches the User object for the specified username.
 393          *
 394          * @param username the username of the user
 395          */
 396         private void fetchUser(final String username) {
 397                 String path = getApiPath() + username + "/";
 398                 GetCommand<UserResource> getUserCommand = new GetCommand<UserResource>(UserResource.class, username, path, null) {
 399
 400                         @Override
 401                         public void onComplete() {
 402                                 currentUserResource = getResult();
 403                                 final String announcement = currentUserResource.getAnnouncement();
 404                                 if (announcement != null)
 405                                         DeferredCommand.addCommand(new Command() {
 406
 407                                                 public void execute() {
 408                                                         displayInformation(announcement);
 409                                                 }
 410                                         });
 411                         }
 412
 413                         @Override
 414                         public void onError(Throwable t) {
 415                                 GWT.log("Fetching user error", t);
 416                                 if (t instanceof RestException)
 417                                         GSS.get().displayError("No user found:" + ((RestException) t).getHttpStatusText());
 418                                 else
 419                                         GSS.get().displayError("System error fetching user data:" + t.getMessage());
 420                                 authenticateUser();
 421                         }
 422                 };
 423                 DeferredCommand.addCommand(getUserCommand);
 424         }
 425
 426         /**
 427          * Parse and store the user credentials to the appropriate fields.
 428          */
 429         private void parseUserCredentials() {
 430                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 431                 String cookie = conf.authCookie();
 432                 String auth = Cookies.getCookie(cookie);
 433                 if (auth == null) {
 434                         authenticateUser();
 435                         // Redundant, but silences warnings about possible auth NPE, below.
 436                         return;
 437                 }
 438                 int sepIndex = auth.indexOf(conf.cookieSeparator());
 439                 if (sepIndex == -1)
 440                         authenticateUser();
 441                 token = auth.substring(sepIndex + 1);
 442                 final String username = auth.substring(0, sepIndex);
 443                 if (username == null)
 444                         authenticateUser();
 445
 446                 refreshWebDAVPassword();
 447
 448                 DeferredCommand.addCommand(new Command() {
 449
 450                         public void execute() {
 451                                 fetchUser(username);
 452                         }
 453                 });
 454         }
 455
 456         /**
 457          * Redirect the user to the login page for authentication.
 458          */
 459         protected void authenticateUser() {
 460                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 461                 Window.Location.assign(conf.loginUrl() + "?next=" + GWT.getModuleBaseURL());
 462         }
 463
 464         /**
 465          * Clear the cookie and redirect the user to the logout page.
 466          */
 467         void logout() {
 468                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 469                 String cookie = conf.authCookie();
 470                 String domain = Window.Location.getHostName();
 471                 String path = Window.Location.getPath();
 472                 Cookies.setCookie(cookie, "", null, domain, path, false);
 473                 Window.Location.assign(conf.logoutUrl());
 474         }
 475
 476         /**
 477          * Creates an HTML fragment that places an image & caption together, for use
 478          * in a group header.
 479          *
 480          * @param imageProto an image prototype for an image
 481          * @param caption the group caption
 482          * @return the header HTML fragment
 483          */
 484         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 485                 String captionHTML = "<table class='caption' cellpadding='0' " + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML() + "</td><td class='rcaption'><b style='white-space:nowrap'>&nbsp;" + caption + "</b></td></tr></table>";
 486                 return captionHTML;
 487         }
 488
 489         private void onWindowResized(int height) {
 490                 // Adjust the split panel to take up the available room in the window.
 491                 int newHeight = height - splitPanel.getAbsoluteTop() - 44;
 492                 if (newHeight < 1)
 493                         newHeight = 1;
 494                 splitPanel.setHeight("" + newHeight);
 495         }
 496
 497         @Override
 498         public void onResize(ResizeEvent event) {
 499                 int height = event.getHeight();
 500                 onWindowResized(height);
 501         }
 502
 503         public boolean isFileListShowing() {
 504                 int tab = inner.getTabBar().getSelectedTab();
 505                 if (tab == 0)
 506                         return true;
 507                 return false;
 508         }
 509
 510         public boolean isSearchResultsShowing() {
 511                 int tab = inner.getTabBar().getSelectedTab();
 512                 if (tab == 2)
 513                         return true;
 514                 return false;
 515         }
 516
 517         /**
 518          * Make the user list visible.
 519          */
 520         public void showUserList() {
 521                 inner.selectTab(1);
 522         }
 523
 524         /**
 525          * Make the file list visible.
 526          */
 527         public void showFileList() {
 528                 fileList.updateFileCache(false, true /*clear selection*/);
 529                 inner.selectTab(0);
 530         }
 531
 532         /**
 533          * Make the file list visible.
 534          *
 535          * @param update
 536          */
 537         public void showFileList(boolean update) {
 538                 TreeItem currentFolder = getFolders().getCurrent();
 539                 if (currentFolder != null) {
 540                         List<FileResource> files = null;
 541                         Object cachedObject = currentFolder.getUserObject();
 542                         if (cachedObject instanceof FolderResource) {
 543                                 FolderResource folder = (FolderResource) cachedObject;
 544                                 files = folder.getFiles();
 545                         } else if (cachedObject instanceof TrashResource) {
 546                                 TrashResource folder = (TrashResource) cachedObject;
 547                                 files = folder.getFiles();
 548                         }
 549                         if (files != null)
 550                                 getFileList().setFiles(files);
 551                 }
 552                 fileList.updateFileCache(update, true /*clear selection*/);
 553                 inner.selectTab(0);
 554         }
 555
 556         /**
 557          * Make the search results visible.
 558          *
 559          * @param query the search query string
 560          */
 561         public void showSearchResults(String query) {
 562                 searchResults.updateFileCache(query);
 563                 searchResults.updateCurrentlyShowingStats();
 564                 inner.selectTab(2);
 565         }
 566
 567         /**
 568          * Display the 'loading' indicator.
 569          */
 570         public void showLoadingIndicator() {
 571                 topPanel.getLoading().setVisible(true);
 572         }
 573
 574         /**
 575          * Hide the 'loading' indicator.
 576          */
 577         public void hideLoadingIndicator() {
 578                 topPanel.getLoading().setVisible(false);
 579         }
 580
 581         /**
 582          * A native JavaScript method to reach out to the browser's window and
 583          * invoke its resizeTo() method.
 584          *
 585          * @param x the new width
 586          * @param y the new height
 587          */
 588         public static native void resizeTo(int x, int y) /*-{
 589                 $wnd.resizeTo(x,y);
 590         }-*/;
 591
 592         /**
 593          * A helper method that returns true if the user's list is currently visible
 594          * and false if it is hidden.
 595          *
 596          * @return true if the user list is visible
 597          */
 598         public boolean isUserListVisible() {
 599                 return inner.getTabBar().getSelectedTab() == 1;
 600         }
 601
 602         /**
 603          * Display an error message.
 604          *
 605          * @param msg the message to display
 606          */
 607         public void displayError(String msg) {
 608                 messagePanel.displayError(msg);
 609         }
 610
 611         /**
 612          * Display a warning message.
 613          *
 614          * @param msg the message to display
 615          */
 616         public void displayWarning(String msg) {
 617                 messagePanel.displayWarning(msg);
 618         }
 619
 620         /**
 621          * Display an informational message.
 622          *
 623          * @param msg the message to display
 624          */
 625         public void displayInformation(String msg) {
 626                 messagePanel.displayInformation(msg);
 627         }
 628
 629         /**
 630          * Retrieve the folders.
 631          *
 632          * @return the folders
 633          */
 634         public Folders getFolders() {
 635                 return folders;
 636         }
 637
 638         /**
 639          * Retrieve the search.
 640          *
 641          * @return the search
 642          */
 643         Search getSearch() {
 644                 return search;
 645         }
 646
 647         /**
 648          * Retrieve the currentSelection.
 649          *
 650          * @return the currentSelection
 651          */
 652         public Object getCurrentSelection() {
 653                 return currentSelection;
 654         }
 655
 656         /**
 657          * Modify the currentSelection.
 658          *
 659          * @param newCurrentSelection the currentSelection to set
 660          */
 661         public void setCurrentSelection(Object newCurrentSelection) {
 662                 currentSelection = newCurrentSelection;
 663         }
 664
 665         /**
 666          * Retrieve the groups.
 667          *
 668          * @return the groups
 669          */
 670         public Groups getGroups() {
 671                 return groups;
 672         }
 673
 674         /**
 675          * Retrieve the fileList.
 676          *
 677          * @return the fileList
 678          */
 679         public FileList getFileList() {
 680                 return fileList;
 681         }
 682
 683         public SearchResults getSearchResults() {
 684                 return searchResults;
 685         }
 686
 687         /**
 688          * Retrieve the topPanel.
 689          *
 690          * @return the topPanel
 691          */
 692         TopPanel getTopPanel() {
 693                 return topPanel;
 694         }
 695
 696         /**
 697          * Retrieve the clipboard.
 698          *
 699          * @return the clipboard
 700          */
 701         public Clipboard getClipboard() {
 702                 return clipboard;
 703         }
 704
 705         public StatusPanel getStatusPanel() {
 706                 return statusPanel;
 707         }
 708
 709         /**
 710          * Retrieve the userDetailsPanel.
 711          *
 712          * @return the userDetailsPanel
 713          */
 714         public UserDetailsPanel getUserDetailsPanel() {
 715                 return userDetailsPanel;
 716         }
 717
 718         /**
 719          * Retrieve the dragController.
 720          *
 721          * @return the dragController
 722          */
 723         public PickupDragController getDragController() {
 724                 return dragController;
 725         }
 726
 727         public String getToken() {
 728                 return token;
 729         }
 730
 731         public String getWebDAVPassword() {
 732                 return webDAVPassword;
 733         }
 734
 735         public void removeGlassPanel() {
 736                 glassPanel.removeFromParent();
 737         }
 738
 739         /**
 740          * Retrieve the currentUserResource.
 741          *
 742          * @return the currentUserResource
 743          */
 744         public UserResource getCurrentUserResource() {
 745                 return currentUserResource;
 746         }
 747
 748         /**
 749          * Modify the currentUserResource.
 750          *
 751          * @param newUser the new currentUserResource
 752          */
 753         public void setCurrentUserResource(UserResource newUser) {
 754                 currentUserResource = newUser;
 755         }
 756
 757         public static native void preventIESelection() /*-{
 758                 $doc.body.onselectstart = function () { return false; };
 759         }-*/;
 760
 761         public static native void enableIESelection() /*-{
 762                 if ($doc.body.onselectstart != null)
 763                 $doc.body.onselectstart = null;
 764         }-*/;
 765
 766         /**
 767          * @return the absolute path of the API root URL
 768          */
 769         public String getApiPath() {
 770                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 771                 return GWT.getModuleBaseURL() + conf.apiPath();
 772         }
 773
 774         public void refreshWebDAVPassword() {
 775                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 776                 String domain = Window.Location.getHostName();
 777                 String path = Window.Location.getPath();
 778                 String cookie = conf.webdavCookie();
 779                 webDAVPassword = Cookies.getCookie(cookie);
 780                 Cookies.setCookie(cookie, "", null, domain, path, false);
 781         }
 782         /**
 783          * @param key
 784          * @return Object of the corresponding String URI which is stored in the history map
 785          */
 786         public Object getHistoryItem(String key){
 787                 return map.get(key);
 788         }
 789
 790         /**
 791          * Replaces any whitespace in the given string to "+"
 792          * Sets a pair of key - object in the History (using a map)
 793          * and adds a new browser history entry
 794          * @param key
 795          * @param obj
 796          */
 797         public void updateHistory(String key, Object obj){
 798 //              Replace any whitespace of the initial string to "+"
 799                 String result = key.replaceAll("\\s","+");
 800 //              Add a new pair key - object in the History map.
 801                 map.put(result, obj);
 802 //              Add a new browser history entry.
 803                 History.newItem(result);
 804         }
 805 }