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