code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/Pithos.java

   1 /*
   2  * Copyright 2011 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above
  13  *      copyright notice, this list of conditions and the following
  14  *      disclaimer in the documentation and/or other materials
  15  *      provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * The views and conclusions contained in the software and
  31  * documentation are those of the authors and should not be
  32  * interpreted as representing official policies, either expressed
  33  * or implied, of GRNET S.A.
  34  */
  35 package gr.grnet.pithos.web.client;
  36
  37 import gr.grnet.pithos.web.client.commands.NewFolderCommand;
  38 import gr.grnet.pithos.web.client.commands.PropertiesCommand;
  39 import gr.grnet.pithos.web.client.commands.UploadFileCommand;
  40 import gr.grnet.pithos.web.client.foldertree.AccountResource;
  41 import gr.grnet.pithos.web.client.foldertree.File;
  42 import gr.grnet.pithos.web.client.foldertree.Folder;
  43 import gr.grnet.pithos.web.client.foldertree.FolderTreeView;
  44 import gr.grnet.pithos.web.client.foldertree.FolderTreeViewModel;
  45 import gr.grnet.pithos.web.client.foldertree.Resource;
  46 import gr.grnet.pithos.web.client.grouptree.Group;
  47 import gr.grnet.pithos.web.client.grouptree.GroupTreeView;
  48 import gr.grnet.pithos.web.client.grouptree.GroupTreeViewModel;
  49 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeView;
  50 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeViewModel;
  51 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeView;
  52 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeViewModel;
  53 import gr.grnet.pithos.web.client.rest.DeleteRequest;
  54 import gr.grnet.pithos.web.client.rest.GetRequest;
  55 import gr.grnet.pithos.web.client.rest.HeadRequest;
  56 import gr.grnet.pithos.web.client.rest.PutRequest;
  57 import gr.grnet.pithos.web.client.rest.RestException;
  58 import gr.grnet.pithos.web.client.tagtree.Tag;
  59 import gr.grnet.pithos.web.client.tagtree.TagTreeView;
  60 import gr.grnet.pithos.web.client.tagtree.TagTreeViewModel;
  61
  62 import java.util.ArrayList;
  63 import java.util.Date;
  64 import java.util.HashMap;
  65 import java.util.Iterator;
  66 import java.util.List;
  67 import java.util.Set;
  68
  69 import com.google.gwt.core.client.EntryPoint;
  70 import com.google.gwt.core.client.GWT;
  71 import com.google.gwt.core.client.Scheduler;
  72 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
  73 import com.google.gwt.dom.client.Style.Display;
  74 import com.google.gwt.event.dom.client.ClickEvent;
  75 import com.google.gwt.event.dom.client.ClickHandler;
  76 import com.google.gwt.event.logical.shared.ResizeEvent;
  77 import com.google.gwt.event.logical.shared.ResizeHandler;
  78 import com.google.gwt.http.client.Request;
  79 import com.google.gwt.http.client.RequestBuilder;
  80 import com.google.gwt.http.client.RequestCallback;
  81 import com.google.gwt.http.client.RequestException;
  82 import com.google.gwt.http.client.Response;
  83 import com.google.gwt.http.client.URL;
  84 import com.google.gwt.i18n.client.NumberFormat;
  85 import com.google.gwt.json.client.JSONArray;
  86 import com.google.gwt.json.client.JSONObject;
  87 import com.google.gwt.json.client.JSONParser;
  88 import com.google.gwt.json.client.JSONString;
  89 import com.google.gwt.json.client.JSONValue;
  90 import com.google.gwt.resources.client.ImageResource;
  91 import com.google.gwt.resources.client.ImageResource.ImageOptions;
  92 import com.google.gwt.user.client.Command;
  93 import com.google.gwt.user.client.Cookies;
  94 import com.google.gwt.user.client.Event;
  95 import com.google.gwt.user.client.History;
  96 import com.google.gwt.user.client.Window;
  97 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  98 import com.google.gwt.user.client.ui.Anchor;
  99 import com.google.gwt.user.client.ui.Button;
 100 import com.google.gwt.user.client.ui.Composite;
 101 import com.google.gwt.user.client.ui.FlowPanel;
 102 import com.google.gwt.user.client.ui.HTML;
 103 import com.google.gwt.user.client.ui.HTMLPanel;
 104 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
 105 import com.google.gwt.user.client.ui.HasVerticalAlignment;
 106 import com.google.gwt.user.client.ui.HorizontalPanel;
 107 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
 108 import com.google.gwt.user.client.ui.Image;
 109 import com.google.gwt.user.client.ui.RootPanel;
 110 import com.google.gwt.user.client.ui.VerticalPanel;
 111 import com.google.gwt.view.client.SelectionChangeEvent;
 112 import com.google.gwt.view.client.SelectionChangeEvent.Handler;
 113 import com.google.gwt.view.client.SingleSelectionModel;
 114
 115 /**
 116  * Entry point classes define <code>onModuleLoad()</code>.
 117  */
 118 public class Pithos implements EntryPoint, ResizeHandler {
 119
 120         public static final String HOME_CONTAINER = "pithos";
 121
 122         public static final String TRASH_CONTAINER = "trash";
 123
 124         /**
 125          * Instantiate an application-level image bundle. This object will provide
 126          * programmatic access to all the images needed by widgets.
 127          */
 128         static Images images = (Images) GWT.create(Images.class);
 129
 130     public String getUsername() {
 131         return username;
 132     }
 133
 134     public void setAccount(AccountResource acct) {
 135         account = acct;
 136     }
 137
 138     public AccountResource getAccount() {
 139         return account;
 140     }
 141
 142     public void updateFolder(Folder f, boolean showfiles, Command callback) {
 143         folderTreeView.updateFolder(f, showfiles, callback);
 144     }
 145
 146     public void updateGroupNode(Group group) {
 147         groupTreeView.updateGroupNode(group);
 148     }
 149
 150     public void updateMySharedRoot() {
 151         mysharedTreeView.updateRoot();
 152     }
 153
 154     public void updateSharedFolder(Folder f, boolean showfiles) {
 155         mysharedTreeView.updateFolder(f, showfiles);
 156     }
 157
 158     public void updateOtherSharedFolder(Folder f, boolean showfiles) {
 159         otherSharedTreeView.updateFolder(f, showfiles);
 160     }
 161
 162     public List<Tag> getAllTags() {
 163         List<Tag> tagList = new ArrayList<Tag>();
 164         for (Folder f : account.getContainers()) {
 165             for (String t : f.getTags()) {
 166                 tagList.add(new Tag(t));
 167             }
 168         }
 169         return tagList;
 170     }
 171
 172     public MysharedTreeView getMySharedTreeView() {
 173         return mysharedTreeView;
 174     }
 175
 176     /**
 177          * An aggregate image bundle that pulls together all the images for this
 178          * application into a single bundle.
 179          */
 180         public interface Images extends TopPanel.Images, FileList.Images, ToolsMenu.Images {
 181
 182                 @Source("gr/grnet/pithos/resources/document.png")
 183                 ImageResource folders();
 184
 185                 @Source("gr/grnet/pithos/resources/advancedsettings.png")
 186                 @ImageOptions(width=32, height=32)
 187                 ImageResource tools();
 188         }
 189
 190         private Throwable error;
 191
 192         /**
 193          * The Application Clipboard implementation;
 194          */
 195         private Clipboard clipboard = new Clipboard();
 196
 197         /**
 198          * The top panel that contains the menu bar.
 199          */
 200         private TopPanel topPanel;
 201
 202         /**
 203          * The panel that contains the various system messages.
 204          */
 205         private MessagePanel messagePanel = new MessagePanel(this, Pithos.images);
 206
 207         /**
 208          * The bottom panel that contains the status bar.
 209          */
 210         private StatusPanel statusPanel = null;
 211
 212         /**
 213          * The file list widget.
 214          */
 215         private FileList fileList;
 216
 217         /**
 218          * The tab panel that occupies the right side of the screen.
 219          */
 220         private VerticalPanel inner = new VerticalPanel();
 221
 222
 223         /**
 224          * The split panel that will contain the left and right panels.
 225          */
 226         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 227
 228         /**
 229          * The currently selected item in the application, for use by the Edit menu
 230          * commands. Potential types are Folder, File, User and Group.
 231          */
 232         private Object currentSelection;
 233
 234         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 235
 236     private String username = null;
 237
 238     /**
 239      * The authentication token of the current user.
 240      */
 241     private String token;
 242
 243     VerticalPanel trees;
 244
 245     SingleSelectionModel<Folder> folderTreeSelectionModel;
 246     FolderTreeViewModel folderTreeViewModel;
 247     FolderTreeView folderTreeView;
 248
 249     SingleSelectionModel<Folder> mysharedTreeSelectionModel;
 250     MysharedTreeViewModel mysharedTreeViewModel;
 251     MysharedTreeView mysharedTreeView = null;;
 252
 253     protected SingleSelectionModel<Folder> otherSharedTreeSelectionModel;
 254     OtherSharedTreeViewModel otherSharedTreeViewModel;
 255     OtherSharedTreeView otherSharedTreeView = null;
 256
 257     GroupTreeViewModel groupTreeViewModel;
 258     private GroupTreeView groupTreeView;
 259
 260     TreeView selectedTree;
 261     protected AccountResource account;
 262
 263     Folder trash;
 264
 265     List<Composite> treeViews = new ArrayList<Composite>();
 266
 267     @SuppressWarnings("rawtypes") List<SingleSelectionModel> selectionModels = new ArrayList<SingleSelectionModel>();
 268
 269     Button upload;
 270
 271     private HTML usedBytes;
 272
 273     private HTML totalBytes;
 274
 275     private HTML usedPercent;
 276
 277     private HTML numOfFiles;
 278
 279     private Anchor refreshButton;
 280
 281     private Anchor toolsButton;
 282
 283         @Override
 284         public void onModuleLoad() {
 285                 if (parseUserCredentials())
 286             initialize();
 287         }
 288
 289     private void initialize() {
 290         boolean bareContent = Window.Location.getParameter("noframe") != null;
 291         String contentWidth = bareContent ? "100%" : "75%";
 292
 293         VerticalPanel outer = new VerticalPanel();
 294         outer.setWidth("100%");
 295         if (!bareContent) {
 296                 outer.addStyleName("pithos-outer");
 297         }
 298
 299         if (!bareContent) {
 300                 topPanel = new TopPanel(this, Pithos.images);
 301                 topPanel.setWidth("100%");
 302                 outer.add(topPanel);
 303                 outer.setCellHorizontalAlignment(topPanel, HasHorizontalAlignment.ALIGN_CENTER);
 304         }
 305
 306         HorizontalPanel header = new HorizontalPanel();
 307         header.addStyleName("pithos-header");
 308         header.setWidth(contentWidth);
 309         if (bareContent)
 310                 header.addStyleName("pithos-header-noframe");
 311         upload = new Button("Upload File", new ClickHandler() {
 312             @Override
 313             public void onClick(@SuppressWarnings("unused") ClickEvent event) {
 314                 new UploadFileCommand(Pithos.this, null, getSelection()).execute();
 315             }
 316         });
 317         upload.addStyleName("pithos-uploadButton");
 318         header.add(upload);
 319         header.setCellHorizontalAlignment(upload, HasHorizontalAlignment.ALIGN_LEFT);
 320         header.setCellVerticalAlignment(upload, HasVerticalAlignment.ALIGN_MIDDLE);
 321
 322         messagePanel.setVisible(false);
 323         header.add(messagePanel);
 324         header.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 325         header.setCellVerticalAlignment(messagePanel, HasVerticalAlignment.ALIGN_MIDDLE);
 326
 327         FlowPanel toolbar = new FlowPanel();
 328         toolbar.getElement().setId("toolbar");
 329         toolbar.addStyleName("clearfix");
 330         toolbar.getElement().getStyle().setDisplay(Display.BLOCK);
 331
 332         Anchor newFolderButton = new Anchor("<span class='ico'></span><span class='title'>New folder</span>", true);
 333         newFolderButton.getElement().setId("newfolder-button");
 334         newFolderButton.addStyleName("pithos-toolbarItem");
 335         newFolderButton.addClickHandler(new ClickHandler() {
 336
 337                         @Override
 338                         public void onClick(@SuppressWarnings("unused") ClickEvent event) {
 339                                 Folder folder = getSelectedTree().getSelection();
 340                                 if (folder != null) {
 341                                 Boolean[] permissions = folder.getPermissions().get(getUsername());
 342                                 boolean canWrite = folder.getOwner().equals(getUsername()) || (permissions!= null && permissions[1] != null && permissions[1]);
 343
 344                                 if (!folder.isInTrash() && canWrite)
 345                                         new NewFolderCommand(Pithos.this, null, folder).execute();
 346                                 }
 347                         }
 348                 });
 349         toolbar.add(newFolderButton);
 350
 351         Anchor shareFolderButton = new Anchor("<span class='ico'></span><span class='title'>Share folder</span>", true);
 352         shareFolderButton.getElement().setId("sharefolder-button");
 353         shareFolderButton.addStyleName("pithos-toolbarItem");
 354         shareFolderButton.addClickHandler(new ClickHandler() {
 355
 356                         @Override
 357                         public void onClick(@SuppressWarnings("unused") ClickEvent event) {
 358                                 Folder folder = getSelectedTree().getSelection();
 359                                 if (folder != null) {
 360                                 Boolean[] permissions = folder.getPermissions().get(getUsername());
 361                                 boolean canWrite = folder.getOwner().equals(getUsername()) || (permissions!= null && permissions[1] != null && permissions[1]);
 362                                 boolean isFolderTreeSelected = selectedTree.equals(getFolderTreeView());
 363
 364                                 if (!folder.isInTrash() && canWrite && isFolderTreeSelected && !folder.isContainer())
 365                                         new PropertiesCommand(Pithos.this, null, folder, PropertiesCommand.PERMISSIONS).execute();
 366                                 }
 367                         }
 368                 });
 369         toolbar.add(shareFolderButton);
 370
 371         refreshButton = new Anchor("<span class='ico'></span><span class='title'>Refresh</span>", true);
 372         refreshButton.getElement().setId("refresh-button");
 373         refreshButton.addStyleName("pithos-toolbarItem");
 374         refreshButton.addClickHandler(new ClickHandler() {
 375
 376                         @Override
 377                         public void onClick(@SuppressWarnings("unused") ClickEvent event) {
 378                         boolean isFolderTreeSelected = selectedTree.equals(getFolderTreeView());
 379                         boolean otherSharedTreeSelected = selectedTree.equals(getOtherSharedTreeView());
 380                         Folder folder = getSelectedTree().getSelection();
 381
 382                         if (folder != null && (isFolderTreeSelected || otherSharedTreeSelected))
 383                                 updateFolder(folder, true, new Command() {
 384
 385                                         @Override
 386                                         public void execute() {
 387                                                 updateStatistics();
 388                                         }
 389                                 });
 390                         }
 391                 });
 392         toolbar.add(refreshButton);
 393
 394         toolsButton = new Anchor("<span class='ico'></span><span class='title'>More...</span>", true);
 395         toolsButton.getElement().setId("tools-button");
 396         toolsButton.addStyleName("pithos-toolbarItem");
 397         toolsButton.addClickHandler(new ClickHandler() {
 398
 399                         @Override
 400                         public void onClick(ClickEvent event) {
 401                 ToolsMenu menu = new ToolsMenu(Pithos.this, images, getSelectedTree(), getSelectedTree().getSelection(), getFileList().getSelectedFiles());
 402                 if (!menu.isEmpty()) {
 403                             menu.setPopupPosition(event.getClientX(), event.getClientY());
 404                             menu.show();
 405                 }
 406                         }
 407                 });
 408         toolbar.add(toolsButton);
 409
 410         header.add(toolbar);
 411         header.setCellHorizontalAlignment(toolbar, HasHorizontalAlignment.ALIGN_CENTER);
 412         header.setCellVerticalAlignment(toolbar, HasVerticalAlignment.ALIGN_MIDDLE);
 413 //        header.setCellWidth(toolbar, "40px");
 414
 415         HorizontalPanel folderStatistics = new HorizontalPanel();
 416         folderStatistics.addStyleName("pithos-folderStatistics");
 417         numOfFiles = new HTML();
 418         folderStatistics.add(numOfFiles);
 419         folderStatistics.setCellVerticalAlignment(numOfFiles, HasVerticalAlignment.ALIGN_MIDDLE);
 420         HTML numOfFilesLabel = new HTML("&nbsp;Files");
 421         folderStatistics.add(numOfFilesLabel);
 422         folderStatistics.setCellVerticalAlignment(numOfFilesLabel, HasVerticalAlignment.ALIGN_MIDDLE);
 423         header.add(folderStatistics);
 424         header.setCellHorizontalAlignment(folderStatistics, HasHorizontalAlignment.ALIGN_RIGHT);
 425         header.setCellVerticalAlignment(folderStatistics, HasVerticalAlignment.ALIGN_MIDDLE);
 426         header.setCellWidth(folderStatistics, "40px");
 427         outer.add(header);
 428         outer.setCellHorizontalAlignment(header, HasHorizontalAlignment.ALIGN_CENTER);
 429         // Inner contains the various lists.nner
 430         inner.sinkEvents(Event.ONCONTEXTMENU);
 431         inner.setWidth("100%");
 432
 433         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 434         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 435             @Override
 436             public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
 437                 if (folderTreeSelectionModel.getSelectedObject() != null) {
 438                     deselectOthers(folderTreeView, folderTreeSelectionModel);
 439                     applyPermissions(folderTreeSelectionModel.getSelectedObject());
 440                     Folder f = folderTreeSelectionModel.getSelectedObject();
 441                         updateFolder(f, true, new Command() {
 442
 443                                 @Override
 444                                 public void execute() {
 445                                         updateStatistics();
 446                                 }
 447                         });
 448                 }
 449             }
 450         });
 451         selectionModels.add(folderTreeSelectionModel);
 452
 453         folderTreeViewModel = new FolderTreeViewModel(this, folderTreeSelectionModel);
 454         folderTreeView = new FolderTreeView(folderTreeViewModel);
 455         treeViews.add(folderTreeView);
 456
 457         fileList = new FileList(this, images, folderTreeView);
 458         inner.add(fileList);
 459
 460         groupTreeViewModel = new GroupTreeViewModel(this);
 461         groupTreeView = new GroupTreeView(groupTreeViewModel);
 462         treeViews.add(groupTreeView);
 463
 464         trees = new VerticalPanel();
 465         trees.setWidth("100%");
 466
 467
 468         HorizontalPanel treeHeader = new HorizontalPanel();
 469         treeHeader.addStyleName("pithos-treeHeader");
 470         treeHeader.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER);
 471         treeHeader.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
 472         HorizontalPanel statistics = new HorizontalPanel();
 473         statistics.addStyleName("pithos-statistics");
 474         statistics.add(new HTML("Used:&nbsp;"));
 475         usedBytes = new HTML();
 476         statistics.add(usedBytes);
 477         statistics.add(new HTML("&nbsp;of&nbsp;"));
 478         totalBytes = new HTML();
 479         statistics.add(totalBytes);
 480         statistics.add(new HTML("&nbsp;("));
 481         usedPercent = new HTML();
 482         statistics.add(usedPercent);
 483         statistics.add(new HTML(")"));
 484         treeHeader.add(statistics);
 485         treeHeader.setCellHorizontalAlignment(statistics, HasHorizontalAlignment.ALIGN_LEFT);
 486         trees.add(treeHeader);
 487
 488         trees.add(folderTreeView);
 489         trees.add(groupTreeView);
 490         // Add the left and right panels to the split panel.
 491         splitPanel.setLeftWidget(trees);
 492         splitPanel.setRightWidget(inner);
 493         splitPanel.setSplitPosition("35%");
 494         splitPanel.setSize("100%", "100%");
 495         splitPanel.addStyleName("pithos-splitPanel");
 496         splitPanel.setWidth(contentWidth);
 497         outer.add(splitPanel);
 498         outer.setCellHorizontalAlignment(splitPanel, HasHorizontalAlignment.ALIGN_CENTER);
 499
 500         if (!bareContent) {
 501                 statusPanel = new StatusPanel();
 502                 statusPanel.setWidth("100%");
 503                 outer.add(statusPanel);
 504                 outer.setCellHorizontalAlignment(statusPanel, HasHorizontalAlignment.ALIGN_CENTER);
 505         }
 506         else
 507                 splitPanel.addStyleName("pithos-splitPanel-noframe");
 508
 509         // Hook the window resize event, so that we can adjust the UI.
 510         Window.addResizeHandler(this);
 511         // Clear out the window's built-in margin, because we want to take
 512         // advantage of the entire client area.
 513         Window.setMargin("0px");
 514         // Finally, add the outer panel to the RootPanel, so that it will be
 515         // displayed.
 516         RootPanel.get().add(outer);
 517         // Call the window resized handler to get the initial sizes setup. Doing
 518         // this in a deferred command causes it to occur after all widgets'
 519         // sizes have been computed by the browser.
 520         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 521
 522             @Override
 523             public void execute() {
 524                 onWindowResized(Window.getClientHeight());
 525             }
 526         });
 527
 528         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 529             @Override
 530             public void execute() {
 531                 fetchAccount(new Command() {
 532
 533                                         @Override
 534                                         public void execute() {
 535                                 if (!account.hasHomeContainer())
 536                                     createHomeContainer(account, this);
 537                                 else if (!account.hasTrashContainer())
 538                                         createTrashContainer(this);
 539                                 else {
 540                                         for (Folder f : account.getContainers())
 541                                                 if (f.getName().equals(Pithos.TRASH_CONTAINER)) {
 542                                                         trash = f;
 543                                                         break;
 544                                                 }
 545                                     folderTreeViewModel.initialize(account, new Command() {
 546
 547                                                                 @Override
 548                                                                 public void execute() {
 549                                                     createMySharedTree();
 550                                                                 }
 551                                                         });
 552                                     groupTreeViewModel.initialize();
 553                                     showStatistics();
 554                                 }
 555                                         }
 556                                 });
 557             }
 558         });
 559
 560 //        Scheduler.get().scheduleDeferred(new Command() {
 561 //
 562 //                      @Override
 563 //                      public void execute() {
 564 //                              displayError("lalala");
 565 //
 566 //                      }
 567 //              });
 568     }
 569
 570     public void applyPermissions(Folder f) {
 571         if (f != null) {
 572                 if (f.isInTrash())
 573                         upload.setEnabled(false);
 574                 else {
 575                         Boolean[] perms = f.getPermissions().get(username);
 576                         if (f.getOwner().equals(username) || (perms != null && perms[1] != null && perms[1])) {
 577                                 upload.setEnabled(true);
 578                         }
 579                         else
 580                                 upload.setEnabled(false);
 581                 }
 582         }
 583         else
 584                 upload.setEnabled(false);
 585         }
 586
 587         @SuppressWarnings({ "rawtypes", "unchecked" })
 588         public void deselectOthers(TreeView _selectedTree, SingleSelectionModel model) {
 589         selectedTree = _selectedTree;
 590
 591         for (Composite c : treeViews)
 592                 if (c.equals(selectedTree))
 593                         c.addStyleName("cellTreeWidget-selectedTree");
 594                 else
 595                         c.removeStyleName("cellTreeWidget-selectedTree");
 596
 597         for (SingleSelectionModel s : selectionModels)
 598             if (!s.equals(model))
 599                 s.setSelected(s.getSelectedObject(), false);
 600     }
 601
 602     public void showFiles(final Folder f) {
 603         Set<File> files = f.getFiles();
 604         showFiles(files);
 605     }
 606
 607     public void showFiles(Set<File> files) {
 608         fileList.setFiles(new ArrayList<File>(files));
 609     }
 610
 611     protected void fetchFile(final Iterator<File> iter, final Set<File> files) {
 612         if (iter.hasNext()) {
 613             File file = iter.next();
 614             String path = file.getUri() + "?format=json";
 615             GetRequest<File> getFile = new GetRequest<File>(File.class, getApiPath(), username, path, file) {
 616                 @Override
 617                 public void onSuccess(@SuppressWarnings("unused") File _result) {
 618                     fetchFile(iter, files);
 619                 }
 620
 621                 @Override
 622                 public void onError(Throwable t) {
 623                     GWT.log("Error getting file", t);
 624                                         setError(t);
 625                     if (t instanceof RestException)
 626                         displayError("Error getting file: " + ((RestException) t).getHttpStatusText());
 627                     else
 628                         displayError("System error fetching file: " + t.getMessage());
 629                 }
 630
 631                                 @Override
 632                                 protected void onUnauthorized(Response response) {
 633                                         sessionExpired();
 634                                 }
 635             };
 636             getFile.setHeader("X-Auth-Token", "0000");
 637             Scheduler.get().scheduleDeferred(getFile);
 638         }
 639         else
 640             fileList.setFiles(new ArrayList<File>(files));
 641     }
 642
 643     /**
 644          * Parse and store the user credentials to the appropriate fields.
 645          */
 646         private boolean parseUserCredentials() {
 647         username = Window.Location.getParameter("user");
 648         token = Window.Location.getParameter("token");
 649         Configuration conf = (Configuration) GWT.create(Configuration.class);
 650         if (username == null || username.length() == 0 || token == null || token.length() == 0) {
 651             String cookie = conf.authCookie();
 652             String auth = Cookies.getCookie(cookie);
 653             if (auth == null) {
 654                 authenticateUser();
 655                 return false;
 656             }
 657             if (auth.startsWith("\""))
 658                 auth = auth.substring(1);
 659             if (auth.endsWith("\""))
 660                 auth = auth.substring(0, auth.length() - 1);
 661                         String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 662                         if (authSplit.length != 2) {
 663                             authenticateUser();
 664                             return false;
 665                         }
 666                         username = authSplit[0];
 667                         token = authSplit[1];
 668                         return true;
 669         }
 670
 671                 Cookies.setCookie(conf.authCookie(), username + conf.cookieSeparator() + token, null, "", "/", false);
 672                 return true;
 673     }
 674
 675     /**
 676          * Redirect the user to the login page for authentication.
 677          */
 678         protected void authenticateUser() {
 679                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 680         Window.Location.assign(conf.loginUrl() + "?next=" + Window.Location.getHref());
 681         }
 682
 683         protected void fetchAccount(final Command callback) {
 684         String path = "?format=json";
 685
 686         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, getApiPath(), username, path) {
 687             @Override
 688             public void onSuccess(AccountResource _result) {
 689                 account = _result;
 690                 if (callback != null)
 691                         callback.execute();
 692             }
 693
 694             @Override
 695             public void onError(Throwable t) {
 696                 GWT.log("Error getting account", t);
 697                                 setError(t);
 698                 if (t instanceof RestException)
 699                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 700                 else
 701                     displayError("System error fetching user data: " + t.getMessage());
 702             }
 703
 704                         @Override
 705                         protected void onUnauthorized(Response response) {
 706                                 sessionExpired();
 707                         }
 708         };
 709         getAccount.setHeader("X-Auth-Token", token);
 710         Scheduler.get().scheduleDeferred(getAccount);
 711     }
 712
 713     public void updateStatistics() {
 714         HeadRequest<AccountResource> headAccount = new HeadRequest<AccountResource>(AccountResource.class, getApiPath(), username, "", account) {
 715
 716                         @Override
 717                         public void onSuccess(@SuppressWarnings("unused") AccountResource _result) {
 718                                 showStatistics();
 719                         }
 720
 721                         @Override
 722                         public void onError(Throwable t) {
 723                 GWT.log("Error getting account", t);
 724                                 setError(t);
 725                 if (t instanceof RestException)
 726                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 727                 else
 728                     displayError("System error fetching user data: " + t.getMessage());
 729                         }
 730
 731                         @Override
 732                         protected void onUnauthorized(Response response) {
 733                                 sessionExpired();
 734                         }
 735                 };
 736                 headAccount.setHeader("X-Auth-Token", token);
 737                 Scheduler.get().scheduleDeferred(headAccount);
 738         }
 739
 740         protected void showStatistics() {
 741         usedBytes.setHTML(String.valueOf(account.getFileSizeAsString()));
 742         totalBytes.setHTML(String.valueOf(account.getQuotaAsString()));
 743         NumberFormat nf = NumberFormat.getPercentFormat();
 744         usedPercent.setHTML(nf.format(account.getUsedPercentage()));
 745         }
 746
 747         protected void createHomeContainer(final AccountResource _account, final Command callback) {
 748         String path = "/" + Pithos.HOME_CONTAINER;
 749         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 750             @Override
 751             public void onSuccess(@SuppressWarnings("unused") Resource result) {
 752                 if (!_account.hasTrashContainer())
 753                         createTrashContainer(callback);
 754                 else
 755                         fetchAccount(callback);
 756             }
 757
 758             @Override
 759             public void onError(Throwable t) {
 760                 GWT.log("Error creating pithos", t);
 761                                 setError(t);
 762                 if (t instanceof RestException)
 763                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 764                 else
 765                     displayError("System error Error creating pithos: " + t.getMessage());
 766             }
 767
 768                         @Override
 769                         protected void onUnauthorized(Response response) {
 770                                 sessionExpired();
 771                         }
 772         };
 773         createPithos.setHeader("X-Auth-Token", getToken());
 774         Scheduler.get().scheduleDeferred(createPithos);
 775     }
 776
 777     protected void createTrashContainer(final Command callback) {
 778         String path = "/" + Pithos.TRASH_CONTAINER;
 779         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 780             @Override
 781             public void onSuccess(@SuppressWarnings("unused") Resource result) {
 782                         fetchAccount(callback);
 783             }
 784
 785             @Override
 786             public void onError(Throwable t) {
 787                 GWT.log("Error creating pithos", t);
 788                                 setError(t);
 789                 if (t instanceof RestException)
 790                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 791                 else
 792                     displayError("System error Error creating pithos: " + t.getMessage());
 793             }
 794
 795                         @Override
 796                         protected void onUnauthorized(Response response) {
 797                                 sessionExpired();
 798                         }
 799         };
 800         createPithos.setHeader("X-Auth-Token", getToken());
 801         Scheduler.get().scheduleDeferred(createPithos);
 802     }
 803
 804     /**
 805          * Creates an HTML fragment that places an image & caption together, for use
 806          * in a group header.
 807          *
 808          * @param imageProto an image prototype for an image
 809          * @param caption the group caption
 810          * @return the header HTML fragment
 811          */
 812         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 813                 String captionHTML = "<table class='caption' cellpadding='0' "
 814                 + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 815                 + "</td><td id =" + caption +" class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 816                 + caption + "</b></td></tr></table>";
 817                 return captionHTML;
 818         }
 819
 820         protected void onWindowResized(int height) {
 821                 // Adjust the split panel to take up the available room in the window.
 822                 int newHeight = height - splitPanel.getAbsoluteTop();
 823                 if (newHeight < 1)
 824                         newHeight = 1;
 825                 splitPanel.setHeight("" + newHeight);
 826                 inner.setHeight("" + newHeight);
 827         }
 828
 829         @Override
 830         public void onResize(ResizeEvent event) {
 831                 int height = event.getHeight();
 832                 onWindowResized(height);
 833         }
 834
 835         /**
 836          * Display an error message.
 837          *
 838          * @param msg the message to display
 839          */
 840         public void displayError(String msg) {
 841                 messagePanel.displayError(msg);
 842         }
 843
 844         /**
 845          * Display a warning message.
 846          *
 847          * @param msg the message to display
 848          */
 849         public void displayWarning(String msg) {
 850                 messagePanel.displayWarning(msg);
 851         }
 852
 853         /**
 854          * Display an informational message.
 855          *
 856          * @param msg the message to display
 857          */
 858         public void displayInformation(String msg) {
 859                 messagePanel.displayInformation(msg);
 860         }
 861
 862         /**
 863          * Retrieve the fileList.
 864          *
 865          * @return the fileList
 866          */
 867         public FileList getFileList() {
 868                 return fileList;
 869         }
 870
 871         /**
 872          * Retrieve the topPanel.
 873          *
 874          * @return the topPanel
 875          */
 876         TopPanel getTopPanel() {
 877                 return topPanel;
 878         }
 879
 880         /**
 881          * Retrieve the clipboard.
 882          *
 883          * @return the clipboard
 884          */
 885         public Clipboard getClipboard() {
 886                 return clipboard;
 887         }
 888
 889         public StatusPanel getStatusPanel() {
 890                 return statusPanel;
 891         }
 892
 893         public String getToken() {
 894                 return token;
 895         }
 896
 897         public static native void preventIESelection() /*-{
 898                 $doc.body.onselectstart = function () { return false; };
 899         }-*/;
 900
 901         public static native void enableIESelection() /*-{
 902                 if ($doc.body.onselectstart != null)
 903                 $doc.body.onselectstart = null;
 904         }-*/;
 905
 906         /**
 907          * @return the absolute path of the API root URL
 908          */
 909         public String getApiPath() {
 910                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 911                 return conf.apiPath();
 912         }
 913
 914         /**
 915          * History support for folder navigation
 916          * adds a new browser history entry
 917          *
 918          * @param key
 919          */
 920         public void updateHistory(String key){
 921 //              Replace any whitespace of the initial string to "+"
 922 //              String result = key.replaceAll("\\s","+");
 923 //              Add a new browser history entry.
 924 //              History.newItem(result);
 925                 History.newItem(key);
 926         }
 927
 928     public void deleteFolder(final Folder folder) {
 929         String path = getApiPath() + folder.getOwner() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(folder.getPrefix()) + "&t=" + System.currentTimeMillis();
 930         RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
 931         builder.setHeader("X-Auth-Token", getToken());
 932         try {
 933             builder.sendRequest("", new RequestCallback() {
 934                 @Override
 935                 public void onResponseReceived(@SuppressWarnings("unused") Request request, Response response) {
 936                     if (response.getStatusCode() == Response.SC_OK) {
 937                         JSONValue json = JSONParser.parseStrict(response.getText());
 938                         JSONArray array = json.isArray();
 939                         int i = 0;
 940                         if (array != null) {
 941                             deleteObject(folder, i, array);
 942                         }
 943                     }
 944                 }
 945
 946                 @Override
 947                 public void onError(@SuppressWarnings("unused") Request request, Throwable exception) {
 948                         setError(exception);
 949                     displayError("System error unable to delete folder: " + exception.getMessage());
 950                 }
 951             });
 952         }
 953         catch (RequestException e) {
 954         }
 955     }
 956
 957     void deleteObject(final Folder folder, final int i, final JSONArray array) {
 958         if (i < array.size()) {
 959             JSONObject o = array.get(i).isObject();
 960             if (o != null && !o.containsKey("subdir")) {
 961                 JSONString name = o.get("name").isString();
 962                 String path = "/" + folder.getContainer() + "/" + name.stringValue();
 963                 DeleteRequest delete = new DeleteRequest(getApiPath(), folder.getOwner(), path) {
 964                     @Override
 965                     public void onSuccess(@SuppressWarnings("unused") Resource result) {
 966                         deleteObject(folder, i + 1, array);
 967                     }
 968
 969                     @Override
 970                     public void onError(Throwable t) {
 971                         GWT.log("", t);
 972                                                 setError(t);
 973                         displayError("System error unable to delete folder: " + t.getMessage());
 974                     }
 975
 976                                 @Override
 977                                 protected void onUnauthorized(Response response) {
 978                                         sessionExpired();
 979                                 }
 980                 };
 981                 delete.setHeader("X-Auth-Token", getToken());
 982                 Scheduler.get().scheduleDeferred(delete);
 983             }
 984             else if (o != null) {
 985                 String subdir = o.get("subdir").isString().stringValue();
 986                 subdir = subdir.substring(0, subdir.length() - 1);
 987                 String path = getApiPath() + getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(subdir) + "&t=" + System.currentTimeMillis();
 988                 RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
 989                 builder.setHeader("X-Auth-Token", getToken());
 990                 try {
 991                     builder.sendRequest("", new RequestCallback() {
 992                         @Override
 993                         public void onResponseReceived(@SuppressWarnings("unused") Request request, Response response) {
 994                             if (response.getStatusCode() == Response.SC_OK) {
 995                                 JSONValue json = JSONParser.parseStrict(response.getText());
 996                                 JSONArray array2 = json.isArray();
 997                                 if (array2 != null) {
 998                                     int l = array.size();
 999                                     for (int j=0; j<array2.size(); j++) {
1000                                         array.set(l++, array2.get(j));
1001                                     }
1002                                 }
1003                                 deleteObject(folder, i + 1, array);
1004                             }
1005                         }
1006
1007                         @Override
1008                         public void onError(@SuppressWarnings("unused") Request request, Throwable exception) {
1009                                 setError(exception);
1010                             displayError("System error unable to delete folder: " + exception.getMessage());
1011                         }
1012                     });
1013                 }
1014                 catch (RequestException e) {
1015                 }
1016             }
1017         }
1018         else {
1019             String path = folder.getUri();
1020             DeleteRequest deleteFolder = new DeleteRequest(getApiPath(), getUsername(), path) {
1021                 @Override
1022                 public void onSuccess(@SuppressWarnings("unused") Resource result) {
1023                     updateFolder(folder.getParent(), true, new Command() {
1024
1025                                                 @Override
1026                                                 public void execute() {
1027                                                         updateStatistics();
1028                                                 }
1029                                         });
1030                 }
1031
1032                 @Override
1033                 public void onError(Throwable t) {
1034                     GWT.log("", t);
1035                                         setError(t);
1036                     if (t instanceof RestException) {
1037                         if (((RestException) t).getHttpStatusCode() != Response.SC_NOT_FOUND)
1038                                 displayError("Unable to delete folder: "+((RestException) t).getHttpStatusText());
1039                         else
1040                                 onSuccess(null);
1041                     }
1042                     else
1043                         displayError("System error unable to delete folder: " + t.getMessage());
1044                 }
1045
1046                                 @Override
1047                                 protected void onUnauthorized(Response response) {
1048                                         sessionExpired();
1049                                 }
1050             };
1051             deleteFolder.setHeader("X-Auth-Token", getToken());
1052             Scheduler.get().scheduleDeferred(deleteFolder);
1053         }
1054     }
1055
1056     public FolderTreeView getFolderTreeView() {
1057         return folderTreeView;
1058     }
1059
1060     public void copyFiles(final Iterator<File> iter, final String targetUsername, final String targetUri, final Command callback) {
1061         if (iter.hasNext()) {
1062             File file = iter.next();
1063             String path = targetUri + "/" + file.getName();
1064             PutRequest copyFile = new PutRequest(getApiPath(), targetUsername, path) {
1065                 @Override
1066                 public void onSuccess(@SuppressWarnings("unused") Resource result) {
1067                     copyFiles(iter, targetUsername, targetUri, callback);
1068                 }
1069
1070                 @Override
1071                 public void onError(Throwable t) {
1072                     GWT.log("", t);
1073                                         setError(t);
1074                     if (t instanceof RestException) {
1075                         displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
1076                     }
1077                     else
1078                         displayError("System error unable to copy file: "+t.getMessage());
1079                 }
1080
1081                                 @Override
1082                                 protected void onUnauthorized(Response response) {
1083                                         sessionExpired();
1084                                 }
1085             };
1086             copyFile.setHeader("X-Auth-Token", getToken());
1087             copyFile.setHeader("X-Copy-From", URL.encodePathSegment(file.getUri()));
1088             if (!file.getOwner().equals(targetUsername))
1089                 copyFile.setHeader("X-Source-Account", URL.encodePathSegment(file.getOwner()));
1090             copyFile.setHeader("Content-Type", file.getContentType());
1091             Scheduler.get().scheduleDeferred(copyFile);
1092         }
1093         else  if (callback != null) {
1094             callback.execute();
1095         }
1096     }
1097
1098     public void copySubfolders(final Iterator<Folder> iter, final String targetUsername, final String targetUri, final Command callback) {
1099         if (iter.hasNext()) {
1100             final Folder f = iter.next();
1101             copyFolder(f, targetUsername, targetUri, new Command() {
1102
1103                                 @Override
1104                                 public void execute() {
1105                                         copySubfolders(iter, targetUsername, targetUri, callback);
1106                                 }
1107                         });
1108         }
1109         else  if (callback != null) {
1110             callback.execute();
1111         }
1112     }
1113
1114     public void copyFolder(final Folder f, final String targetUsername, final String targetUri, final Command callback) {
1115         String path = targetUri + "/" + f.getName();
1116         PutRequest createFolder = new PutRequest(getApiPath(), targetUsername, path) {
1117             @Override
1118             public void onSuccess(@SuppressWarnings("unused") Resource result) {
1119                 GetRequest<Folder> getFolder = new GetRequest<Folder>(Folder.class, getApiPath(), f.getOwner(), "/" + f.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(f.getPrefix()), f) {
1120
1121                                         @Override
1122                                         public void onSuccess(final Folder _f) {
1123                                 Iterator<File> iter = _f.getFiles().iterator();
1124                                 copyFiles(iter, targetUsername, targetUri + "/" + _f.getName(), new Command() {
1125                                     @Override
1126                                     public void execute() {
1127                                         Iterator<Folder> iterf = _f.getSubfolders().iterator();
1128                                         copySubfolders(iterf, targetUsername, targetUri + "/" + _f.getName(), callback);
1129                                     }
1130                                 });
1131                                         }
1132
1133                                         @Override
1134                                         public void onError(Throwable t) {
1135                                 GWT.log("", t);
1136                                                 setError(t);
1137                                 if (t instanceof RestException) {
1138                                     displayError("Unable to get folder: " + ((RestException) t).getHttpStatusText());
1139                                 }
1140                                 else
1141                                     displayError("System error getting folder: " + t.getMessage());
1142                                         }
1143
1144                                         @Override
1145                                         protected void onUnauthorized(Response response) {
1146                                                 sessionExpired();
1147                                         }
1148                                 };
1149                                 getFolder.setHeader("X-Auth-Token", getToken());
1150                                 Scheduler.get().scheduleDeferred(getFolder);
1151             }
1152
1153             @Override
1154             public void onError(Throwable t) {
1155                 GWT.log("", t);
1156                                 setError(t);
1157                if (t instanceof RestException) {
1158                     displayError("Unable to create folder: " + ((RestException) t).getHttpStatusText());
1159                 }
1160                 else
1161                     displayError("System error creating folder: " + t.getMessage());
1162             }
1163
1164                         @Override
1165                         protected void onUnauthorized(Response response) {
1166                                 sessionExpired();
1167                         }
1168         };
1169         createFolder.setHeader("X-Auth-Token", getToken());
1170         createFolder.setHeader("Accept", "*/*");
1171         createFolder.setHeader("Content-Length", "0");
1172         createFolder.setHeader("Content-Type", "application/folder");
1173         Scheduler.get().scheduleDeferred(createFolder);
1174     }
1175
1176     public void addSelectionModel(@SuppressWarnings("rawtypes") SingleSelectionModel model) {
1177         selectionModels.add(model);
1178     }
1179
1180         public OtherSharedTreeView getOtherSharedTreeView() {
1181                 return otherSharedTreeView;
1182         }
1183
1184         public void updateTrash(boolean showFiles, Command callback) {
1185                 updateFolder(trash, showFiles, callback);
1186         }
1187
1188         public void updateGroupsNode() {
1189                 groupTreeView.updateGroupNode(null);
1190         }
1191
1192         public void addGroup(String groupname) {
1193                 Group newGroup = new Group(groupname);
1194                 account.addGroup(newGroup);
1195                 groupTreeView.updateGroupNode(null);
1196         }
1197
1198         public void removeGroup(Group group) {
1199                 account.removeGroup(group);
1200                 updateGroupsNode();
1201         }
1202
1203         public TreeView getSelectedTree() {
1204                 return selectedTree;
1205         }
1206
1207         public Folder getSelection() {
1208                 return selectedTree.getSelection();
1209         }
1210
1211         public void showFolderStatistics(int folderFileCount) {
1212                 numOfFiles.setHTML(String.valueOf(folderFileCount));
1213         }
1214
1215         public GroupTreeView getGroupTreeView() {
1216                 return groupTreeView;
1217         }
1218
1219         public void sessionExpired() {
1220                 new SessionExpiredDialog(this).center();
1221         }
1222
1223         public void updateRootFolder(Command callback) {
1224                 updateFolder(account.getPithos(), false, callback);
1225         }
1226
1227         void createMySharedTree() {
1228                 mysharedTreeSelectionModel = new SingleSelectionModel<Folder>();
1229                 mysharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
1230                     @Override
1231                     public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
1232                         if (mysharedTreeSelectionModel.getSelectedObject() != null) {
1233                             deselectOthers(mysharedTreeView, mysharedTreeSelectionModel);
1234                             upload.setEnabled(false);
1235                             updateSharedFolder(mysharedTreeSelectionModel.getSelectedObject(), true);
1236                         }
1237                     }
1238                 });
1239                 selectionModels.add(mysharedTreeSelectionModel);
1240                 mysharedTreeViewModel = new MysharedTreeViewModel(Pithos.this, mysharedTreeSelectionModel);
1241                 mysharedTreeViewModel.initialize(new Command() {
1242
1243                         @Override
1244                         public void execute() {
1245                             mysharedTreeView = new MysharedTreeView(mysharedTreeViewModel);
1246                                 trees.insert(mysharedTreeView, 2);
1247                                 treeViews.add(mysharedTreeView);
1248                                 createOtherSharedTree();
1249                         }
1250                 });
1251         }
1252
1253         void createOtherSharedTree() {
1254                 otherSharedTreeSelectionModel = new SingleSelectionModel<Folder>();
1255                 otherSharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
1256                     @Override
1257                     public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
1258                         if (otherSharedTreeSelectionModel.getSelectedObject() != null) {
1259                             deselectOthers(otherSharedTreeView, otherSharedTreeSelectionModel);
1260                             otherSharedTreeView.addStyleName("cellTreeWidget-selectedTree");
1261                             applyPermissions(otherSharedTreeSelectionModel.getSelectedObject());
1262                             updateOtherSharedFolder(otherSharedTreeSelectionModel.getSelectedObject(), true);
1263                         }
1264                     }
1265                 });
1266                 selectionModels.add(otherSharedTreeSelectionModel);
1267                 otherSharedTreeViewModel = new OtherSharedTreeViewModel(Pithos.this, otherSharedTreeSelectionModel);
1268                 otherSharedTreeViewModel.initialize(new Command() {
1269
1270                         @Override
1271                         public void execute() {
1272                             otherSharedTreeView = new OtherSharedTreeView(otherSharedTreeViewModel);
1273                                 trees.insert(otherSharedTreeView, 3);
1274                                 treeViews.add(otherSharedTreeView);
1275                         }
1276                 });
1277         }
1278
1279         public void logoff() {
1280         Configuration conf = (Configuration) GWT.create(Configuration.class);
1281                 Cookies.removeCookie(conf.authCookie(), "/");
1282                 Cookies.removeCookie(conf.authTokenCookie(), "/");
1283                 for (String s: Cookies.getCookieNames())
1284                         if (s.startsWith(conf.shibSessionCookiePrefix()))
1285                                 Cookies.removeCookie(s, "/");
1286                 Window.Location.assign(Window.Location.getPath());
1287         }
1288
1289         public String getErrorData() {
1290                 if (error != null)
1291                         return error.toString();
1292                 return "";
1293         }
1294
1295         public void setError(Throwable t) {
1296                 error = t;
1297         }
1298 }