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.http.client.URL;
  48 import com.google.gwt.resources.client.ClientBundle;
  49 import com.google.gwt.resources.client.ImageResource;
  50 import com.google.gwt.user.client.Command;
  51 import com.google.gwt.user.client.Cookies;
  52 import com.google.gwt.user.client.DOM;
  53 import com.google.gwt.user.client.DeferredCommand;
  54 import com.google.gwt.user.client.History;
  55 import com.google.gwt.user.client.Window;
  56 import com.google.gwt.user.client.ui.AbsolutePanel;
  57 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  58 import com.google.gwt.user.client.ui.DecoratedTabPanel;
  59 import com.google.gwt.user.client.ui.DockPanel;
  60 import com.google.gwt.user.client.ui.HTML;
  61 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  62 import com.google.gwt.user.client.ui.HasVerticalAlignment;
  63 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
  64 import com.google.gwt.user.client.ui.Label;
  65 import com.google.gwt.user.client.ui.RootPanel;
  66 import com.google.gwt.user.client.ui.TabPanel;
  67 import com.google.gwt.user.client.ui.TreeItem;
  68 import com.google.gwt.user.client.ui.VerticalPanel;
  69 import com.google.gwt.user.client.ui.Widget;
  70
  71 /**
  72  * Entry point classes define <code>onModuleLoad()</code>.
  73  */
  74 public class GSS implements EntryPoint, ResizeHandler {
  75
  76         /**
  77          * A constant that denotes the completion of an IncrementalCommand.
  78          */
  79         public static final boolean DONE = false;
  80
  81         public static final int VISIBLE_FILE_COUNT = 100;
  82
  83         /**
  84          * Instantiate an application-level image bundle. This object will provide
  85          * programmatic access to all the images needed by widgets.
  86          */
  87         private static Images images = (Images) GWT.create(Images.class);
  88
  89         private GlassPanel glassPanel = new GlassPanel();
  90
  91         /**
  92          * An aggregate image bundle that pulls together all the images for this
  93          * application into a single bundle.
  94          */
  95         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 {
  96
  97                 @Source("gr/ebs/gss/resources/document.png")
  98                 ImageResource folders();
  99
 100                 @Source("gr/ebs/gss/resources/edit_group_22.png")
 101                 ImageResource groups();
 102
 103                 @Source("gr/ebs/gss/resources/search.png")
 104                 ImageResource search();
 105         }
 106
 107         /**
 108          * The single GSS instance.
 109          */
 110         private static GSS singleton;
 111
 112         /**
 113          * Gets the singleton GSS instance.
 114          *
 115          * @return the GSS object
 116          */
 117         public static GSS get() {
 118                 if (GSS.singleton == null)
 119                         GSS.singleton = new GSS();
 120                 return GSS.singleton;
 121         }
 122
 123         /**
 124          * The Application Clipboard implementation;
 125          */
 126         private Clipboard clipboard = new Clipboard();
 127
 128         private UserResource currentUserResource;
 129
 130         /**
 131          * The top panel that contains the menu bar.
 132          */
 133         private TopPanel topPanel;
 134
 135         /**
 136          * The panel that contains the various system messages.
 137          */
 138         private MessagePanel messagePanel = new MessagePanel(GSS.images);
 139
 140         /**
 141          * The bottom panel that contains the status bar.
 142          */
 143         private StatusPanel statusPanel = new StatusPanel(GSS.images);
 144
 145         /**
 146          * The top right panel that displays the logged in user details
 147          */
 148         private UserDetailsPanel userDetailsPanel = new UserDetailsPanel();
 149
 150         /**
 151          * The file list widget.
 152          */
 153         private FileList fileList;
 154
 155         /**
 156          * The group list widget.
 157          */
 158         private Groups groups = new Groups(images);
 159
 160         /**
 161          * The search result widget.
 162          */
 163         private SearchResults searchResults;
 164
 165         /**
 166          * The tab panel that occupies the right side of the screen.
 167          */
 168         private TabPanel inner = new DecoratedTabPanel();
 169
 170         /**
 171          * The split panel that will contain the left and right panels.
 172          */
 173         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 174
 175         /**
 176          * The horizontal panel that will contain the search and status panels.
 177          */
 178         private DockPanel searchStatus = new DockPanel();
 179
 180         /**
 181          * The search widget.
 182          */
 183         private Search search;
 184
 185         /**
 186          * The widget that displays the tree of folders.
 187          */
 188         private Folders folders = new Folders(images);
 189
 190         /**
 191          * The currently selected item in the application, for use by the Edit menu
 192          * commands. Potential types are Folder, File, User and Group.
 193          */
 194         private Object currentSelection;
 195
 196         /**
 197          * The authentication token of the current user.
 198          */
 199         private String token;
 200
 201         /**
 202          * A map that stores user's selection in order browser's
 203          * history functionality to be implemented.
 204          */
 205         private Map<String, Object> map = new HashMap<String, Object>();
 206
 207         /**
 208          * The WebDAV password of the current user
 209          */
 210         private String webDAVPassword;
 211
 212         private PickupDragController dragController;
 213
 214         public void onModuleLoad() {
 215                 // Initialize the singleton before calling the constructors of the
 216                 // various widgets that might call GSS.get().
 217                 singleton = this;
 218                 RootPanel.get().add(glassPanel, 0, 0);
 219                 parseUserCredentials();
 220                 dragController = new PickupDragController(RootPanel.get(), false) {
 221
 222                         @Override
 223                         public void previewDragStart() throws VetoDragException {
 224                                 super.previewDragStart();
 225                                 if (context.selectedWidgets.isEmpty())
 226                                         throw new VetoDragException();
 227
 228                                 if (context.draggable != null)
 229                                         if (context.draggable instanceof DnDFocusPanel) {
 230                                                 DnDFocusPanel toDrop = (DnDFocusPanel) context.draggable;
 231                                                 // prevent drag and drop for trashed files and for
 232                                                 // unselected tree items
 233                                                 if (toDrop.getFiles() != null && folders.isTrashItem(folders.getCurrent()))
 234                                                         throw new VetoDragException();
 235                                                 else if (toDrop.getItem() != null && !toDrop.getItem().equals(folders.getCurrent()))
 236                                                         throw new VetoDragException();
 237                                                 else if (toDrop.getItem() != null && !toDrop.getItem().isDraggable())
 238                                                         throw new VetoDragException();
 239
 240                                         } else if (context.draggable instanceof DnDSimpleFocusPanel) {
 241                                                 DnDSimpleFocusPanel toDrop = (DnDSimpleFocusPanel) context.draggable;
 242                                                 // prevent drag and drop for trashed files and for
 243                                                 // unselected tree items
 244                                                 if (toDrop.getFiles() != null && folders.isTrashItem(folders.getCurrent()))
 245                                                         throw new VetoDragException();
 246                                         }
 247                         }
 248
 249                         @Override
 250                         protected Widget newDragProxy(DragContext aContext) {
 251                                 AbsolutePanel container = new AbsolutePanel();
 252                                 DOM.setStyleAttribute(container.getElement(), "overflow", "visible");
 253                                 for (Iterator iterator = aContext.selectedWidgets.iterator(); iterator.hasNext();) {
 254                                         HTML html = null;
 255                                         Widget widget = (Widget) iterator.next();
 256                                         if (widget instanceof DnDFocusPanel) {
 257                                                 DnDFocusPanel book = (DnDFocusPanel) widget;
 258                                                 html = book.cloneHTML();
 259                                         } else if (widget instanceof DnDSimpleFocusPanel) {
 260                                                 DnDSimpleFocusPanel book = (DnDSimpleFocusPanel) widget;
 261                                                 html = book.cloneHTML();
 262                                         }
 263                                         if (html == null)
 264                                                 container.add(new Label("Drag ME"));
 265                                         else
 266                                                 container.add(html);
 267                                 }
 268                                 return container;
 269                         }
 270                 };
 271                 dragController.setBehaviorDragProxy(true);
 272                 dragController.setBehaviorMultipleSelection(false);
 273                 topPanel = new TopPanel(GSS.images);
 274                 topPanel.setWidth("100%");
 275
 276                 messagePanel.setWidth("100%");
 277                 messagePanel.setVisible(false);
 278
 279                 search = new Search(images);
 280                 searchStatus.add(search, DockPanel.WEST);
 281                 searchStatus.add(userDetailsPanel, DockPanel.EAST);
 282                 searchStatus.setCellHorizontalAlignment(userDetailsPanel, HasHorizontalAlignment.ALIGN_RIGHT);
 283                 searchStatus.setCellVerticalAlignment(search, HasVerticalAlignment.ALIGN_MIDDLE);
 284                 searchStatus.setCellVerticalAlignment(userDetailsPanel, HasVerticalAlignment.ALIGN_MIDDLE);
 285                 searchStatus.setWidth("100%");
 286
 287                 fileList = new FileList(images);
 288
 289                 searchResults = new SearchResults(images);
 290
 291                 // Inner contains the various lists.
 292                 inner.setAnimationEnabled(true);
 293                 inner.getTabBar().addStyleName("gss-MainTabBar");
 294                 inner.getDeckPanel().addStyleName("gss-MainTabPanelBottom");
 295                 inner.add(fileList, createHeaderHTML(AbstractImagePrototype.create(images.folders()), "Files"), true);
 296
 297                 inner.add(groups, createHeaderHTML(AbstractImagePrototype.create(images.groups()), "Groups"), true);
 298                 inner.add(searchResults, createHeaderHTML(AbstractImagePrototype.create(images.search()), "Search Results"), true);
 299                 inner.setWidth("100%");
 300                 inner.selectTab(0);
 301
 302                 inner.addSelectionHandler(new SelectionHandler<Integer>() {
 303
 304                         @Override
 305                         public void onSelection(SelectionEvent<Integer> event) {
 306                                 int tabIndex = event.getSelectedItem();
 307                                 TreeItem treeItem = GSS.get().getFolders().getCurrent();
 308                                 switch (tabIndex) {
 309                                         case 0:
 310                                                 fileList.clearSelectedRows();
 311                                                 fileList.updateCurrentlyShowingStats();
 312                                                 break;
 313                                                 /**
 314                                                  * When the Groups tab is selected a new
 315                                                  */
 316                                         case 1:
 317                                                 groups.updateCurrentlyShowingStats();
 318 //                                              Add a new pair key - object in the History map.
 319                                                 setHistory("Groups", treeItem);
 320 //                                              Add a new browser history entry.
 321                                         History.newItem("Groups");
 322                                                 break;
 323                                         case 2:
 324                                                 searchResults.clearSelectedRows();
 325                                                 searchResults.updateCurrentlyShowingStats();
 326                                                 setHistory("Search", treeItem);
 327                                         History.newItem("Search");
 328                                                 break;
 329                                 }
 330                         }
 331                 });
 332                 // If the application starts with no history token, redirect to a new "Files" state
 333                 String initToken = History.getToken();
 334                 if(initToken.length() == 0)
 335                         History.newItem("Files");
 336
 337                 // Add history listener
 338                    History.addValueChangeHandler(new ValueChangeHandler<String>() {
 339                               public void onValueChange(ValueChangeEvent<String> event) {
 340                                 String historyToken = event.getValue();
 341                                 TreeItem treeItem = GSS.get().getFolders().getCurrent();
 342                                 try {
 343                                   if(historyToken.equals("Search"))
 344                                                 inner.selectTab(2);
 345                                         else if(historyToken.equals("Groups"))
 346                                                 inner.selectTab(1);
 347                                         else if(historyToken.equals("Files")){
 348                                           setHistory("Files", treeItem);
 349                                           History.newItem("Files");
 350                                           inner.selectTab(0);
 351                                   }
 352                                   else{
 353                                           PopupTree tree = GSS.get().getFolders().getPopupTree();
 354                                           String newHistoryToken = URL.decode(historyToken);
 355                                           System.out.println(map.keySet());
 356                                           SelectionEvent.fire(tree, (TreeItem) getHistoryItem(newHistoryToken));
 357                                   }
 358                                 } catch (IndexOutOfBoundsException e) {
 359                                         inner.selectTab(0);
 360                                 }
 361                               }
 362                             });
 363
 364
 365                 // Add the left and right panels to the split panel.
 366                 splitPanel.setLeftWidget(folders);
 367                 splitPanel.setRightWidget(inner);
 368                 splitPanel.setSplitPosition("25%");
 369                 splitPanel.setSize("100%", "100%");
 370                 splitPanel.addStyleName("gss-splitPanel");
 371
 372                 // Create a dock panel that will contain the menu bar at the top,
 373                 // the shortcuts to the left, the status bar at the bottom and the
 374                 // right panel taking the rest.
 375                 VerticalPanel outer = new VerticalPanel();
 376                 outer.add(topPanel);
 377                 outer.add(searchStatus);
 378                 outer.add(messagePanel);
 379                 outer.add(splitPanel);
 380                 outer.add(statusPanel);
 381                 outer.setWidth("100%");
 382                 outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 383
 384                 outer.setSpacing(4);
 385
 386                 // Hook the window resize event, so that we can adjust the UI.
 387                 Window.addResizeHandler(this);
 388                 // Clear out the window's built-in margin, because we want to take
 389                 // advantage of the entire client area.
 390                 Window.setMargin("0px");
 391                 // Finally, add the outer panel to the RootPanel, so that it will be
 392                 // displayed.
 393                 RootPanel.get().add(outer);
 394                 // Call the window resized handler to get the initial sizes setup. Doing
 395                 // this in a deferred command causes it to occur after all widgets'
 396                 // sizes have been computed by the browser.
 397                 DeferredCommand.addCommand(new Command() {
 398
 399                         public void execute() {
 400                                 onWindowResized(Window.getClientHeight());
 401                         }
 402                 });
 403         }
 404
 405         /**
 406          * Fetches the User object for the specified username.
 407          *
 408          * @param username the username of the user
 409          */
 410         private void fetchUser(final String username) {
 411                 String path = getApiPath() + username + "/";
 412                 GetCommand<UserResource> getUserCommand = new GetCommand<UserResource>(UserResource.class, username, path, null) {
 413
 414                         @Override
 415                         public void onComplete() {
 416                                 currentUserResource = getResult();
 417                                 final String announcement = currentUserResource.getAnnouncement();
 418                                 if (announcement != null)
 419                                         DeferredCommand.addCommand(new Command() {
 420
 421                                                 public void execute() {
 422                                                         displayInformation(announcement);
 423                                                 }
 424                                         });
 425                         }
 426
 427                         @Override
 428                         public void onError(Throwable t) {
 429                                 GWT.log("Fetching user error", t);
 430                                 if (t instanceof RestException)
 431                                         GSS.get().displayError("No user found:" + ((RestException) t).getHttpStatusText());
 432                                 else
 433                                         GSS.get().displayError("System error fetching user data:" + t.getMessage());
 434                                 authenticateUser();
 435                         }
 436                 };
 437                 DeferredCommand.addCommand(getUserCommand);
 438         }
 439
 440         /**
 441          * Parse and store the user credentials to the appropriate fields.
 442          */
 443         private void parseUserCredentials() {
 444                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 445                 String cookie = conf.authCookie();
 446                 String auth = Cookies.getCookie(cookie);
 447                 if (auth == null) {
 448                         authenticateUser();
 449                         // Redundant, but silences warnings about possible auth NPE, below.
 450                         return;
 451                 }
 452                 int sepIndex = auth.indexOf(conf.cookieSeparator());
 453                 if (sepIndex == -1)
 454                         authenticateUser();
 455                 token = auth.substring(sepIndex + 1);
 456                 final String username = auth.substring(0, sepIndex);
 457                 if (username == null)
 458                         authenticateUser();
 459
 460                 refreshWebDAVPassword();
 461
 462                 DeferredCommand.addCommand(new Command() {
 463
 464                         public void execute() {
 465                                 fetchUser(username);
 466                         }
 467                 });
 468         }
 469
 470         /**
 471          * Redirect the user to the login page for authentication.
 472          */
 473         protected void authenticateUser() {
 474                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 475                 Window.Location.assign(conf.loginUrl() + "?next=" + GWT.getModuleBaseURL());
 476         }
 477
 478         /**
 479          * Clear the cookie and redirect the user to the logout page.
 480          */
 481         void logout() {
 482                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 483                 String cookie = conf.authCookie();
 484                 String domain = Window.Location.getHostName();
 485                 String path = Window.Location.getPath();
 486                 Cookies.setCookie(cookie, "", null, domain, path, false);
 487                 Window.Location.assign(conf.logoutUrl());
 488         }
 489
 490         /**
 491          * Creates an HTML fragment that places an image & caption together, for use
 492          * in a group header.
 493          *
 494          * @param imageProto an image prototype for an image
 495          * @param caption the group caption
 496          * @return the header HTML fragment
 497          */
 498         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 499                 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>";
 500                 return captionHTML;
 501         }
 502
 503         private void onWindowResized(int height) {
 504                 // Adjust the split panel to take up the available room in the window.
 505                 int newHeight = height - splitPanel.getAbsoluteTop() - 44;
 506                 if (newHeight < 1)
 507                         newHeight = 1;
 508                 splitPanel.setHeight("" + newHeight);
 509         }
 510
 511         @Override
 512         public void onResize(ResizeEvent event) {
 513                 int height = event.getHeight();
 514                 onWindowResized(height);
 515         }
 516
 517         public boolean isFileListShowing() {
 518                 int tab = inner.getTabBar().getSelectedTab();
 519                 if (tab == 0)
 520                         return true;
 521                 return false;
 522         }
 523
 524         public boolean isSearchResultsShowing() {
 525                 int tab = inner.getTabBar().getSelectedTab();
 526                 if (tab == 2)
 527                         return true;
 528                 return false;
 529         }
 530
 531         /**
 532          * Make the user list visible.
 533          */
 534         public void showUserList() {
 535                 inner.selectTab(1);
 536         }
 537
 538         /**
 539          * Make the file list visible.
 540          */
 541         public void showFileList() {
 542                 fileList.updateFileCache(false, true /*clear selection*/);
 543                 inner.selectTab(0);
 544         }
 545
 546         /**
 547          * Make the file list visible.
 548          *
 549          * @param update
 550          */
 551         public void showFileList(boolean update) {
 552                 TreeItem currentFolder = getFolders().getCurrent();
 553                 if (currentFolder != null) {
 554                         List<FileResource> files = null;
 555                         Object cachedObject = currentFolder.getUserObject();
 556                         if (cachedObject instanceof FolderResource) {
 557                                 FolderResource folder = (FolderResource) cachedObject;
 558                                 files = folder.getFiles();
 559                         } else if (cachedObject instanceof TrashResource) {
 560                                 TrashResource folder = (TrashResource) cachedObject;
 561                                 files = folder.getFiles();
 562                         }
 563                         if (files != null)
 564                                 getFileList().setFiles(files);
 565                 }
 566                 fileList.updateFileCache(update, true /*clear selection*/);
 567                 inner.selectTab(0);
 568         }
 569
 570         /**
 571          * Make the search results visible.
 572          *
 573          * @param query the search query string
 574          */
 575         public void showSearchResults(String query) {
 576                 searchResults.updateFileCache(query);
 577                 searchResults.updateCurrentlyShowingStats();
 578                 inner.selectTab(2);
 579         }
 580
 581         /**
 582          * Display the 'loading' indicator.
 583          */
 584         public void showLoadingIndicator() {
 585                 topPanel.getLoading().setVisible(true);
 586         }
 587
 588         /**
 589          * Hide the 'loading' indicator.
 590          */
 591         public void hideLoadingIndicator() {
 592                 topPanel.getLoading().setVisible(false);
 593         }
 594
 595         /**
 596          * A native JavaScript method to reach out to the browser's window and
 597          * invoke its resizeTo() method.
 598          *
 599          * @param x the new width
 600          * @param y the new height
 601          */
 602         public static native void resizeTo(int x, int y) /*-{
 603                 $wnd.resizeTo(x,y);
 604         }-*/;
 605
 606         /**
 607          * A helper method that returns true if the user's list is currently visible
 608          * and false if it is hidden.
 609          *
 610          * @return true if the user list is visible
 611          */
 612         public boolean isUserListVisible() {
 613                 return inner.getTabBar().getSelectedTab() == 1;
 614         }
 615
 616         /**
 617          * Display an error message.
 618          *
 619          * @param msg the message to display
 620          */
 621         public void displayError(String msg) {
 622                 messagePanel.displayError(msg);
 623         }
 624
 625         /**
 626          * Display a warning message.
 627          *
 628          * @param msg the message to display
 629          */
 630         public void displayWarning(String msg) {
 631                 messagePanel.displayWarning(msg);
 632         }
 633
 634         /**
 635          * Display an informational message.
 636          *
 637          * @param msg the message to display
 638          */
 639         public void displayInformation(String msg) {
 640                 messagePanel.displayInformation(msg);
 641         }
 642
 643         /**
 644          * Retrieve the folders.
 645          *
 646          * @return the folders
 647          */
 648         public Folders getFolders() {
 649                 return folders;
 650         }
 651
 652         /**
 653          * Retrieve the search.
 654          *
 655          * @return the search
 656          */
 657         Search getSearch() {
 658                 return search;
 659         }
 660
 661         /**
 662          * Retrieve the currentSelection.
 663          *
 664          * @return the currentSelection
 665          */
 666         public Object getCurrentSelection() {
 667                 return currentSelection;
 668         }
 669
 670         /**
 671          * Modify the currentSelection.
 672          *
 673          * @param newCurrentSelection the currentSelection to set
 674          */
 675         public void setCurrentSelection(Object newCurrentSelection) {
 676                 currentSelection = newCurrentSelection;
 677         }
 678
 679         /**
 680          * Retrieve the groups.
 681          *
 682          * @return the groups
 683          */
 684         public Groups getGroups() {
 685                 return groups;
 686         }
 687
 688         /**
 689          * Retrieve the fileList.
 690          *
 691          * @return the fileList
 692          */
 693         public FileList getFileList() {
 694                 return fileList;
 695         }
 696
 697         public SearchResults getSearchResults() {
 698                 return searchResults;
 699         }
 700
 701         /**
 702          * Retrieve the topPanel.
 703          *
 704          * @return the topPanel
 705          */
 706         TopPanel getTopPanel() {
 707                 return topPanel;
 708         }
 709
 710         /**
 711          * Retrieve the clipboard.
 712          *
 713          * @return the clipboard
 714          */
 715         public Clipboard getClipboard() {
 716                 return clipboard;
 717         }
 718
 719         public StatusPanel getStatusPanel() {
 720                 return statusPanel;
 721         }
 722
 723         /**
 724          * Retrieve the userDetailsPanel.
 725          *
 726          * @return the userDetailsPanel
 727          */
 728         public UserDetailsPanel getUserDetailsPanel() {
 729                 return userDetailsPanel;
 730         }
 731
 732         /**
 733          * Retrieve the dragController.
 734          *
 735          * @return the dragController
 736          */
 737         public PickupDragController getDragController() {
 738                 return dragController;
 739         }
 740
 741         public String getToken() {
 742                 return token;
 743         }
 744
 745         public String getWebDAVPassword() {
 746                 return webDAVPassword;
 747         }
 748
 749         public void removeGlassPanel() {
 750                 glassPanel.removeFromParent();
 751         }
 752
 753         /**
 754          * Retrieve the currentUserResource.
 755          *
 756          * @return the currentUserResource
 757          */
 758         public UserResource getCurrentUserResource() {
 759                 return currentUserResource;
 760         }
 761
 762         /**
 763          * Modify the currentUserResource.
 764          *
 765          * @param newUser the new currentUserResource
 766          */
 767         public void setCurrentUserResource(UserResource newUser) {
 768                 currentUserResource = newUser;
 769         }
 770
 771         public static native void preventIESelection() /*-{
 772                 $doc.body.onselectstart = function () { return false; };
 773         }-*/;
 774
 775         public static native void enableIESelection() /*-{
 776                 if ($doc.body.onselectstart != null)
 777                 $doc.body.onselectstart = null;
 778         }-*/;
 779
 780         /**
 781          * @return the absolute path of the API root URL
 782          */
 783         public String getApiPath() {
 784                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 785                 return GWT.getModuleBaseURL() + conf.apiPath();
 786         }
 787
 788         public void refreshWebDAVPassword() {
 789                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 790                 String domain = Window.Location.getHostName();
 791                 String path = Window.Location.getPath();
 792                 String cookie = conf.webdavCookie();
 793                 webDAVPassword = Cookies.getCookie(cookie);
 794                 Cookies.setCookie(cookie, "", null, domain, path, false);
 795         }
 796         /**
 797          *
 798          * @param key
 799          * @return Object of the corresponding key in the History map
 800          */
 801         public Object getHistoryItem(String key){
 802                 return map.get(key);
 803         }
 804         /**
 805          * Set a pair of key - object in the History (using a map)
 806          * @param key
 807          * @param obj
 808          */
 809
 810         public void setHistory(String key, Object obj){
 811                 map.put(key, obj);
 812         }
 813 }