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.commands.GetUserCommand;
  23 import gr.ebs.gss.client.dnd.DnDFocusPanel;
  24 import gr.ebs.gss.client.dnd.DnDSimpleFocusPanel;
  25 import gr.ebs.gss.client.rest.GetCommand;
  26 import gr.ebs.gss.client.rest.RestException;
  27 import gr.ebs.gss.client.rest.resource.FileResource;
  28 import gr.ebs.gss.client.rest.resource.FolderResource;
  29 import gr.ebs.gss.client.rest.resource.TrashResource;
  30 import gr.ebs.gss.client.rest.resource.UserResource;
  31
  32 import java.util.Arrays;
  33 import java.util.Date;
  34 import java.util.HashMap;
  35 import java.util.Iterator;
  36 import java.util.List;
  37
  38 import com.allen_sauer.gwt.dnd.client.DragContext;
  39 import com.allen_sauer.gwt.dnd.client.PickupDragController;
  40 import com.allen_sauer.gwt.dnd.client.VetoDragException;
  41 import com.google.gwt.core.client.EntryPoint;
  42 import com.google.gwt.core.client.GWT;
  43 import com.google.gwt.event.logical.shared.ResizeEvent;
  44 import com.google.gwt.event.logical.shared.ResizeHandler;
  45 import com.google.gwt.event.logical.shared.SelectionEvent;
  46 import com.google.gwt.event.logical.shared.SelectionHandler;
  47 import com.google.gwt.event.logical.shared.ValueChangeEvent;
  48 import com.google.gwt.event.logical.shared.ValueChangeHandler;
  49 import com.google.gwt.i18n.client.DateTimeFormat;
  50 import com.google.gwt.resources.client.ClientBundle;
  51 import com.google.gwt.resources.client.ImageResource;
  52 import com.google.gwt.user.client.Command;
  53 import com.google.gwt.user.client.Cookies;
  54 import com.google.gwt.user.client.DOM;
  55 import com.google.gwt.user.client.DeferredCommand;
  56 import com.google.gwt.user.client.History;
  57 import com.google.gwt.user.client.Window;
  58 import com.google.gwt.user.client.ui.AbsolutePanel;
  59 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  60 import com.google.gwt.user.client.ui.DecoratedTabPanel;
  61 import com.google.gwt.user.client.ui.DockPanel;
  62 import com.google.gwt.user.client.ui.HTML;
  63 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  64 import com.google.gwt.user.client.ui.HasVerticalAlignment;
  65 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
  66 import com.google.gwt.user.client.ui.Label;
  67 import com.google.gwt.user.client.ui.RootPanel;
  68 import com.google.gwt.user.client.ui.TabPanel;
  69 import com.google.gwt.user.client.ui.TreeItem;
  70 import com.google.gwt.user.client.ui.VerticalPanel;
  71 import com.google.gwt.user.client.ui.Widget;
  72
  73 /**
  74  * Entry point classes define <code>onModuleLoad()</code>.
  75  */
  76 public class GSS implements EntryPoint, ResizeHandler {
  77
  78         /**
  79          * A constant that denotes the completion of an IncrementalCommand.
  80          */
  81         public static final boolean DONE = false;
  82
  83         public static final int VISIBLE_FILE_COUNT = 100;
  84
  85         /**
  86          * Instantiate an application-level image bundle. This object will provide
  87          * programmatic access to all the images needed by widgets.
  88          */
  89         private static Images images = (Images) GWT.create(Images.class);
  90
  91         private GlassPanel glassPanel = new GlassPanel();
  92
  93         /**
  94          * An aggregate image bundle that pulls together all the images for this
  95          * application into a single bundle.
  96          */
  97         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, CellTreeView.Images {
  98
  99                 @Source("gr/ebs/gss/resources/document.png")
 100                 ImageResource folders();
 101
 102                 @Source("gr/ebs/gss/resources/edit_group_22.png")
 103                 ImageResource groups();
 104
 105                 @Source("gr/ebs/gss/resources/search.png")
 106                 ImageResource search();
 107         }
 108
 109         /**
 110          * The single GSS instance.
 111          */
 112         private static GSS singleton;
 113
 114         /**
 115          * Gets the singleton GSS instance.
 116          *
 117          * @return the GSS object
 118          */
 119         public static GSS get() {
 120                 if (GSS.singleton == null)
 121                         GSS.singleton = new GSS();
 122                 return GSS.singleton;
 123         }
 124
 125         /**
 126          * The Application Clipboard implementation;
 127          */
 128         private Clipboard clipboard = new Clipboard();
 129
 130         private UserResource currentUserResource;
 131
 132         /**
 133          * The top panel that contains the menu bar.
 134          */
 135         private TopPanel topPanel;
 136
 137         /**
 138          * The panel that contains the various system messages.
 139          */
 140         private MessagePanel messagePanel = new MessagePanel(GSS.images);
 141
 142         /**
 143          * The bottom panel that contains the status bar.
 144          */
 145         private StatusPanel statusPanel = new StatusPanel(GSS.images);
 146
 147         /**
 148          * The top right panel that displays the logged in user details
 149          */
 150         private UserDetailsPanel userDetailsPanel = new UserDetailsPanel();
 151
 152         /**
 153          * The file list widget.
 154          */
 155         private FileList fileList;
 156
 157         /**
 158          * The group list widget.
 159          */
 160         private Groups groups = new Groups(images);
 161
 162         /**
 163          * The search result widget.
 164          */
 165         private SearchResults searchResults;
 166
 167         /**
 168          * The tab panel that occupies the right side of the screen.
 169          */
 170         private TabPanel inner = new DecoratedTabPanel();
 171
 172         /**
 173          * The split panel that will contain the left and right panels.
 174          */
 175         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 176
 177         /**
 178          * The horizontal panel that will contain the search and status panels.
 179          */
 180         private DockPanel searchStatus = new DockPanel();
 181
 182         /**
 183          * The search widget.
 184          */
 185         private Search search;
 186
 187         /**
 188          * The widget that displays the tree of folders.
 189          */
 190         private Folders folders = new Folders(images);
 191
 192         /**
 193          * The currently selected item in the application, for use by the Edit menu
 194          * commands. Potential types are Folder, File, User and Group.
 195          */
 196         private Object currentSelection;
 197
 198         /**
 199          * The authentication token of the current user.
 200          */
 201         private String token;
 202
 203         /**
 204          * The WebDAV password of the current user
 205          */
 206         private String webDAVPassword;
 207
 208         private PickupDragController dragController;
 209
 210         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 211
 212         @Override
 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                                 HTML html = null;
 252                                 DOM.setStyleAttribute(container.getElement(), "overflow", "visible");
 253                                 if(aContext.draggable!=null && aContext.draggable.getParent()!= null && aContext.draggable.getParent() instanceof FileTable){
 254                                         if(getFileList().getSelectedFiles().size()>1){
 255                                                 html=new HTML(getFileList().getSelectedFiles().size()+ " files");
 256                                                 container.add(html);
 257                                                 return container;
 258                                         }
 259                                         FileTable proxy;
 260                                     proxy = new FileTable(1,8);
 261                                     proxy.addStyleName("gss-List");
 262                                     FileTable draggableTable = (FileTable) context.draggable.getParent();
 263                                     int dragRow = FileTable.getWidgetRow(context.draggable, draggableTable);
 264                                     FileTable.copyRow(draggableTable, proxy, dragRow, 0);
 265                                     return proxy;
 266
 267                                 }
 268                                 for (Iterator iterator = aContext.selectedWidgets.iterator(); iterator.hasNext();) {
 269                                         Widget widget = (Widget) iterator.next();
 270                                         if (widget instanceof DnDFocusPanel) {
 271                                                 DnDFocusPanel book = (DnDFocusPanel) widget;
 272                                                 html = book.cloneHTML();
 273                                         } else if (widget instanceof DnDSimpleFocusPanel) {
 274                                                 DnDSimpleFocusPanel book = (DnDSimpleFocusPanel) widget;
 275                                                 html = book.cloneHTML();
 276                                         }
 277                                         if(html == null)
 278                                                 container.add(new Label("Drag ME"));
 279                                         else
 280                                                 container.add(html);
 281                                         return container;
 282                                 }
 283                                 return container;
 284                         }
 285                 };
 286                 dragController.setBehaviorDragProxy(true);
 287                 dragController.setBehaviorMultipleSelection(false);
 288                 topPanel = new TopPanel(GSS.images);
 289                 topPanel.setWidth("100%");
 290
 291                 messagePanel.setWidth("100%");
 292                 messagePanel.setVisible(false);
 293
 294                 search = new Search(images);
 295                 searchStatus.add(search, DockPanel.WEST);
 296                 searchStatus.add(userDetailsPanel, DockPanel.EAST);
 297                 searchStatus.setCellHorizontalAlignment(userDetailsPanel, HasHorizontalAlignment.ALIGN_RIGHT);
 298                 searchStatus.setCellVerticalAlignment(search, HasVerticalAlignment.ALIGN_MIDDLE);
 299                 searchStatus.setCellVerticalAlignment(userDetailsPanel, HasVerticalAlignment.ALIGN_MIDDLE);
 300                 searchStatus.setWidth("100%");
 301
 302                 fileList = new FileList(images);
 303
 304                 searchResults = new SearchResults(images);
 305
 306                 // Inner contains the various lists.
 307                 inner.setAnimationEnabled(true);
 308                 inner.getTabBar().addStyleName("gss-MainTabBar");
 309                 inner.getDeckPanel().addStyleName("gss-MainTabPanelBottom");
 310                 inner.add(fileList, createHeaderHTML(AbstractImagePrototype.create(images.folders()), "Files"), true);
 311
 312                 inner.add(groups, createHeaderHTML(AbstractImagePrototype.create(images.groups()), "Groups"), true);
 313                 inner.add(searchResults, createHeaderHTML(AbstractImagePrototype.create(images.search()), "Search Results"), true);
 314                 inner.add(new CellTreeView(images), createHeaderHTML(AbstractImagePrototype.create(images.search()), "Cell tree sample"), true);
 315                 inner.setWidth("100%");
 316                 inner.selectTab(0);
 317
 318                 inner.addSelectionHandler(new SelectionHandler<Integer>() {
 319
 320                         @Override
 321                         public void onSelection(SelectionEvent<Integer> event) {
 322                                 int tabIndex = event.getSelectedItem();
 323 //                              TreeItem treeItem = GSS.get().getFolders().getCurrent();
 324                                 switch (tabIndex) {
 325                                         case 0:
 326 //                                              Files tab selected
 327                                                 fileList.clearSelectedRows();
 328                                                 fileList.updateCurrentlyShowingStats();
 329                                                 break;
 330                                         case 1:
 331 //                                              Groups tab selected
 332                                                 groups.updateCurrentlyShowingStats();
 333                                         updateHistory("Groups");
 334                                                 break;
 335                                         case 2:
 336 //                                              Search tab selected
 337                                                 searchResults.clearSelectedRows();
 338                                                 searchResults.updateCurrentlyShowingStats();
 339                                         updateHistory("Search");
 340                                                 break;
 341                                 }
 342                         }
 343                 });
 344 //              If the application starts with no history token, redirect to a new "Files" state
 345                 String initToken = History.getToken();
 346                 if(initToken.length() == 0)
 347                         History.newItem("Files");
 348 //                 Add history listener to handle any history events
 349                 History.addValueChangeHandler(new ValueChangeHandler<String>() {
 350                         @Override
 351                         public void onValueChange(ValueChangeEvent<String> event) {
 352                                 String tokenInput = event.getValue();
 353                                 String historyToken = handleSpecialFolderNames(tokenInput);
 354                                 try {
 355                                         if(historyToken.equals("Search"))
 356                                                 inner.selectTab(2);
 357                                         else if(historyToken.equals("Groups"))
 358                                                 inner.selectTab(1);
 359                                         else if(historyToken.equals("Files")|| historyToken.length()==0)
 360                                                 inner.selectTab(0);
 361                                         else {
 362                                                 PopupTree popupTree = GSS.get().getFolders().getPopupTree();
 363                                                 TreeItem treeObj = GSS.get().getFolders().getPopupTree().getTreeItem(historyToken);
 364                                                 SelectionEvent.fire(popupTree, treeObj);
 365                                         }
 366                                 } catch (IndexOutOfBoundsException e) {
 367                                         inner.selectTab(0);
 368                                 }
 369                         }
 370                 });
 371
 372                 // Add the left and right panels to the split panel.
 373                 splitPanel.setLeftWidget(folders);
 374                 splitPanel.setRightWidget(inner);
 375                 splitPanel.setSplitPosition("25%");
 376                 splitPanel.setSize("100%", "100%");
 377                 splitPanel.addStyleName("gss-splitPanel");
 378
 379                 // Create a dock panel that will contain the menu bar at the top,
 380                 // the shortcuts to the left, the status bar at the bottom and the
 381                 // right panel taking the rest.
 382                 VerticalPanel outer = new VerticalPanel();
 383                 outer.add(topPanel);
 384                 outer.add(searchStatus);
 385                 outer.add(messagePanel);
 386                 outer.add(splitPanel);
 387                 outer.add(statusPanel);
 388                 outer.setWidth("100%");
 389                 outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 390
 391                 outer.setSpacing(4);
 392
 393                 // Hook the window resize event, so that we can adjust the UI.
 394                 Window.addResizeHandler(this);
 395                 // Clear out the window's built-in margin, because we want to take
 396                 // advantage of the entire client area.
 397                 Window.setMargin("0px");
 398                 // Finally, add the outer panel to the RootPanel, so that it will be
 399                 // displayed.
 400                 RootPanel.get().add(outer);
 401                 // Call the window resized handler to get the initial sizes setup. Doing
 402                 // this in a deferred command causes it to occur after all widgets'
 403                 // sizes have been computed by the browser.
 404                 DeferredCommand.addCommand(new Command() {
 405
 406                         @Override
 407                         public void execute() {
 408                                 onWindowResized(Window.getClientHeight());
 409                         }
 410                 });
 411         }
 412
 413         /**
 414          * Fetches the User object for the specified username.
 415          *
 416          * @param username the username of the user
 417          */
 418         private void fetchUser(final String username) {
 419                 String path = getApiPath() + username + "/";
 420                 GetCommand<UserResource> getUserCommand = new GetCommand<UserResource>(UserResource.class, username, path, null) {
 421
 422                         @Override
 423                         public void onComplete() {
 424                                 currentUserResource = getResult();
 425                                 final String announcement = currentUserResource.getAnnouncement();
 426                                 if (announcement != null)
 427                                         DeferredCommand.addCommand(new Command() {
 428
 429                                                 @Override
 430                                                 public void execute() {
 431                                                         displayInformation(announcement);
 432                                                 }
 433                                         });
 434                         }
 435
 436                         @Override
 437                         public void onError(Throwable t) {
 438                                 GWT.log("Fetching user error", t);
 439                                 if (t instanceof RestException)
 440                                         GSS.get().displayError("No user found:" + ((RestException) t).getHttpStatusText());
 441                                 else
 442                                         GSS.get().displayError("System error fetching user data:" + t.getMessage());
 443                                 authenticateUser();
 444                         }
 445                 };
 446                 DeferredCommand.addCommand(getUserCommand);
 447         }
 448
 449         /**
 450          * Parse and store the user credentials to the appropriate fields.
 451          */
 452         private void parseUserCredentials() {
 453                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 454                 String cookie = conf.authCookie();
 455                 String auth = Cookies.getCookie(cookie);
 456                 if (auth == null) {
 457                         authenticateUser();
 458                         // Redundant, but silences warnings about possible auth NPE, below.
 459                         return;
 460                 }
 461                 int sepIndex = auth.indexOf(conf.cookieSeparator());
 462                 if (sepIndex == -1)
 463                         authenticateUser();
 464                 token = auth.substring(sepIndex + 1);
 465                 final String username = auth.substring(0, sepIndex);
 466                 if (username == null)
 467                         authenticateUser();
 468
 469                 refreshWebDAVPassword();
 470
 471                 DeferredCommand.addCommand(new Command() {
 472
 473                         @Override
 474                         public void execute() {
 475                                 fetchUser(username);
 476                         }
 477                 });
 478         }
 479
 480         /**
 481          * Redirect the user to the login page for authentication.
 482          */
 483         protected void authenticateUser() {
 484                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 485                 Window.Location.assign(conf.loginUrl() + "?next=" + GWT.getModuleBaseURL());
 486         }
 487
 488         /**
 489          * Clear the cookie and redirect the user to the logout page.
 490          */
 491         void logout() {
 492                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 493                 String cookie = conf.authCookie();
 494                 String domain = Window.Location.getHostName();
 495                 String path = Window.Location.getPath();
 496                 Cookies.setCookie(cookie, "", null, domain, path, false);
 497                 Window.Location.assign(conf.logoutUrl());
 498         }
 499
 500         /**
 501          * Creates an HTML fragment that places an image & caption together, for use
 502          * in a group header.
 503          *
 504          * @param imageProto an image prototype for an image
 505          * @param caption the group caption
 506          * @return the header HTML fragment
 507          */
 508         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 509                 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>";
 510                 return captionHTML;
 511         }
 512
 513         private void onWindowResized(int height) {
 514                 // Adjust the split panel to take up the available room in the window.
 515                 int newHeight = height - splitPanel.getAbsoluteTop() - 44;
 516                 if (newHeight < 1)
 517                         newHeight = 1;
 518                 splitPanel.setHeight("" + newHeight);
 519         }
 520
 521         @Override
 522         public void onResize(ResizeEvent event) {
 523                 int height = event.getHeight();
 524                 onWindowResized(height);
 525         }
 526
 527         public boolean isFileListShowing() {
 528                 int tab = inner.getTabBar().getSelectedTab();
 529                 if (tab == 0)
 530                         return true;
 531                 return false;
 532         }
 533
 534         public boolean isSearchResultsShowing() {
 535                 int tab = inner.getTabBar().getSelectedTab();
 536                 if (tab == 2)
 537                         return true;
 538                 return false;
 539         }
 540
 541         /**
 542          * Make the user list visible.
 543          */
 544         public void showUserList() {
 545                 inner.selectTab(1);
 546         }
 547
 548         /**
 549          * Make the file list visible.
 550          */
 551         public void showFileList() {
 552                 fileList.updateFileCache(false, true /*clear selection*/);
 553                 inner.selectTab(0);
 554         }
 555
 556         /**
 557          * Make the file list visible.
 558          *
 559          * @param update
 560          */
 561         public void showFileList(boolean update) {
 562                 TreeItem currentFolder = getFolders().getCurrent();
 563                 if (currentFolder != null) {
 564                         List<FileResource> files = null;
 565                         Object cachedObject = currentFolder.getUserObject();
 566                         if (cachedObject instanceof FolderResource) {
 567                                 FolderResource folder = (FolderResource) cachedObject;
 568                                 files = folder.getFiles();
 569                         } else if (cachedObject instanceof TrashResource) {
 570                                 TrashResource folder = (TrashResource) cachedObject;
 571                                 files = folder.getFiles();
 572                         }
 573                         if (files != null)
 574                                 getFileList().setFiles(files);
 575                 }
 576                 fileList.updateFileCache(update, true /*clear selection*/);
 577                 inner.selectTab(0);
 578         }
 579
 580         /**
 581          * Make the search results visible.
 582          *
 583          * @param query the search query string
 584          */
 585         public void showSearchResults(String query) {
 586                 searchResults.updateFileCache(query);
 587                 searchResults.updateCurrentlyShowingStats();
 588                 inner.selectTab(2);
 589         }
 590
 591         /**
 592          * Display the 'loading' indicator.
 593          */
 594         public void showLoadingIndicator() {
 595                 topPanel.getLoading().setVisible(true);
 596         }
 597
 598         /**
 599          * Hide the 'loading' indicator.
 600          */
 601         public void hideLoadingIndicator() {
 602                 topPanel.getLoading().setVisible(false);
 603         }
 604
 605         /**
 606          * A native JavaScript method to reach out to the browser's window and
 607          * invoke its resizeTo() method.
 608          *
 609          * @param x the new width
 610          * @param y the new height
 611          */
 612         public static native void resizeTo(int x, int y) /*-{
 613                 $wnd.resizeTo(x,y);
 614         }-*/;
 615
 616         /**
 617          * A helper method that returns true if the user's list is currently visible
 618          * and false if it is hidden.
 619          *
 620          * @return true if the user list is visible
 621          */
 622         public boolean isUserListVisible() {
 623                 return inner.getTabBar().getSelectedTab() == 1;
 624         }
 625
 626         /**
 627          * Display an error message.
 628          *
 629          * @param msg the message to display
 630          */
 631         public void displayError(String msg) {
 632                 messagePanel.displayError(msg);
 633         }
 634
 635         /**
 636          * Display a warning message.
 637          *
 638          * @param msg the message to display
 639          */
 640         public void displayWarning(String msg) {
 641                 messagePanel.displayWarning(msg);
 642         }
 643
 644         /**
 645          * Display an informational message.
 646          *
 647          * @param msg the message to display
 648          */
 649         public void displayInformation(String msg) {
 650                 messagePanel.displayInformation(msg);
 651         }
 652
 653         /**
 654          * Retrieve the folders.
 655          *
 656          * @return the folders
 657          */
 658         public Folders getFolders() {
 659                 return folders;
 660         }
 661
 662         /**
 663          * Retrieve the search.
 664          *
 665          * @return the search
 666          */
 667         Search getSearch() {
 668                 return search;
 669         }
 670
 671         /**
 672          * Retrieve the currentSelection.
 673          *
 674          * @return the currentSelection
 675          */
 676         public Object getCurrentSelection() {
 677                 return currentSelection;
 678         }
 679
 680         /**
 681          * Modify the currentSelection.
 682          *
 683          * @param newCurrentSelection the currentSelection to set
 684          */
 685         public void setCurrentSelection(Object newCurrentSelection) {
 686                 currentSelection = newCurrentSelection;
 687         }
 688
 689         /**
 690          * Retrieve the groups.
 691          *
 692          * @return the groups
 693          */
 694         public Groups getGroups() {
 695                 return groups;
 696         }
 697
 698         /**
 699          * Retrieve the fileList.
 700          *
 701          * @return the fileList
 702          */
 703         public FileList getFileList() {
 704                 return fileList;
 705         }
 706
 707         public SearchResults getSearchResults() {
 708                 return searchResults;
 709         }
 710
 711         /**
 712          * Retrieve the topPanel.
 713          *
 714          * @return the topPanel
 715          */
 716         TopPanel getTopPanel() {
 717                 return topPanel;
 718         }
 719
 720         /**
 721          * Retrieve the clipboard.
 722          *
 723          * @return the clipboard
 724          */
 725         public Clipboard getClipboard() {
 726                 return clipboard;
 727         }
 728
 729         public StatusPanel getStatusPanel() {
 730                 return statusPanel;
 731         }
 732
 733         /**
 734          * Retrieve the userDetailsPanel.
 735          *
 736          * @return the userDetailsPanel
 737          */
 738         public UserDetailsPanel getUserDetailsPanel() {
 739                 return userDetailsPanel;
 740         }
 741
 742         /**
 743          * Retrieve the dragController.
 744          *
 745          * @return the dragController
 746          */
 747         public PickupDragController getDragController() {
 748                 return dragController;
 749         }
 750
 751         public String getToken() {
 752                 return token;
 753         }
 754
 755         public String getWebDAVPassword() {
 756                 return webDAVPassword;
 757         }
 758
 759         public void removeGlassPanel() {
 760                 glassPanel.removeFromParent();
 761         }
 762
 763         /**
 764          * Retrieve the currentUserResource.
 765          *
 766          * @return the currentUserResource
 767          */
 768         public UserResource getCurrentUserResource() {
 769                 return currentUserResource;
 770         }
 771
 772         /**
 773          * Modify the currentUserResource.
 774          *
 775          * @param newUser the new currentUserResource
 776          */
 777         public void setCurrentUserResource(UserResource newUser) {
 778                 currentUserResource = newUser;
 779         }
 780
 781         public static native void preventIESelection() /*-{
 782                 $doc.body.onselectstart = function () { return false; };
 783         }-*/;
 784
 785         public static native void enableIESelection() /*-{
 786                 if ($doc.body.onselectstart != null)
 787                 $doc.body.onselectstart = null;
 788         }-*/;
 789
 790         /**
 791          * @return the absolute path of the API root URL
 792          */
 793         public String getApiPath() {
 794                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 795                 return GWT.getModuleBaseURL() + conf.apiPath();
 796         }
 797
 798         public void refreshWebDAVPassword() {
 799                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 800                 String domain = Window.Location.getHostName();
 801                 String path = Window.Location.getPath();
 802                 String cookie = conf.webdavCookie();
 803                 webDAVPassword = Cookies.getCookie(cookie);
 804                 Cookies.setCookie(cookie, "", null, domain, path, false);
 805         }
 806
 807         /**
 808          * Convert server date to local time according to browser timezone
 809          * and format it according to localized pattern.
 810          * Time is always formatted to 24hr format.
 811          * NB: This assumes that server runs in UTC timezone. Otherwise
 812          * we would need to adjust for server time offset as well.
 813          *
 814          * @param date
 815          * @return String
 816          */
 817         public static String formatLocalDateTime(Date date) {
 818                 Date convertedDate = new Date(date.getTime() - date.getTimezoneOffset());
 819                 final DateTimeFormat dateFormatter = DateTimeFormat.getShortDateFormat();
 820                 final DateTimeFormat timeFormatter = DateTimeFormat.getFormat("HH:mm");
 821                 String datePart = dateFormatter.format(convertedDate);
 822                 String timePart = timeFormatter.format(convertedDate);
 823                 return datePart + " " + timePart;
 824         }
 825
 826         /**
 827          * History support for folder navigation
 828          * adds a new browser history entry
 829          *
 830          * @param key
 831          */
 832         public void updateHistory(String key){
 833 //              Replace any whitespace of the initial string to "+"
 834 //              String result = key.replaceAll("\\s","+");
 835 //              Add a new browser history entry.
 836 //              History.newItem(result);
 837                 History.newItem(key);
 838         }
 839
 840         /**
 841          * This method examines the token input and add a "/" at the end in case it's omitted.
 842          * This happens only in Files/trash/, Files/shared/, Files/others.
 843          *
 844          * @param tokenInput
 845          * @return the formated token with a "/" at the end or the same tokenInput parameter
 846          */
 847
 848         private String handleSpecialFolderNames(String tokenInput){
 849                 List<String> pathsToCheck = Arrays.asList("Files/trash", "Files/shared", "Files/others");
 850                 if(pathsToCheck.contains(tokenInput))
 851                         return tokenInput + "/";
 852                 return tokenInput;
 853
 854         }
 855
 856         /**
 857          * Reject illegal resource names, like '.' or '..' or slashes '/'.
 858          */
 859         static boolean isValidResourceName(String name) {
 860                 if (".".equals(name) || "..".equals(name) || name.contains("/"))
 861                         return false;
 862                 return true;
 863         }
 864
 865         public void putUserToMap(String _userName, String _userFullName){
 866                 userFullNameMap.put(_userName, _userFullName);
 867         }
 868
 869         public String findUserFullName(String _userName){
 870                 return userFullNameMap.get(_userName);
 871         }
 872
 873         public String getUserFullName(String _userName) {
 874                 if (GSS.get().findUserFullName(_userName) == null)
 875                         //if there is no userFullName found then the map fills with the given _userName,
 876                         //so userFullName = _userName
 877                         GSS.get().putUserToMap(_userName, _userName);
 878                 else if(GSS.get().findUserFullName(_userName).indexOf('@') != -1){
 879                         //if the userFullName = _userName the GetUserCommand updates the userFullName in the map
 880                         GetUserCommand guc = new GetUserCommand(_userName);
 881                         guc.execute();
 882                 }
 883                 return GSS.get().findUserFullName(_userName);
 884         }
 885 }