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

   1 /*
   2  * Copyright 2011-2012 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.UploadFileCommand;
  38 import gr.grnet.pithos.web.client.foldertree.AccountResource;
  39 import gr.grnet.pithos.web.client.foldertree.File;
  40 import gr.grnet.pithos.web.client.foldertree.Folder;
  41 import gr.grnet.pithos.web.client.foldertree.FolderTreeView;
  42 import gr.grnet.pithos.web.client.foldertree.FolderTreeViewModel;
  43 import gr.grnet.pithos.web.client.foldertree.Resource;
  44 import gr.grnet.pithos.web.client.grouptree.Group;
  45 import gr.grnet.pithos.web.client.grouptree.GroupTreeView;
  46 import gr.grnet.pithos.web.client.grouptree.GroupTreeViewModel;
  47 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeView;
  48 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeViewModel;
  49 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeView;
  50 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeViewModel;
  51 import gr.grnet.pithos.web.client.rest.DeleteRequest;
  52 import gr.grnet.pithos.web.client.rest.GetRequest;
  53 import gr.grnet.pithos.web.client.rest.HeadRequest;
  54 import gr.grnet.pithos.web.client.rest.PutRequest;
  55 import gr.grnet.pithos.web.client.rest.RestException;
  56
  57 import java.util.ArrayList;
  58 import java.util.Date;
  59 import java.util.HashMap;
  60 import java.util.Iterator;
  61 import java.util.List;
  62 import java.util.Set;
  63
  64 import org.apache.http.HttpStatus;
  65
  66 import com.google.gwt.core.client.EntryPoint;
  67 import com.google.gwt.core.client.GWT;
  68 import com.google.gwt.core.client.JsArrayString;
  69 import com.google.gwt.core.client.Scheduler;
  70 import com.google.gwt.core.client.Scheduler.RepeatingCommand;
  71 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
  72 import com.google.gwt.event.dom.client.ClickEvent;
  73 import com.google.gwt.event.dom.client.ClickHandler;
  74 import com.google.gwt.event.logical.shared.ResizeEvent;
  75 import com.google.gwt.event.logical.shared.ResizeHandler;
  76 import com.google.gwt.http.client.Request;
  77 import com.google.gwt.http.client.RequestBuilder;
  78 import com.google.gwt.http.client.RequestCallback;
  79 import com.google.gwt.http.client.RequestException;
  80 import com.google.gwt.http.client.Response;
  81 import com.google.gwt.http.client.URL;
  82 import com.google.gwt.i18n.client.DateTimeFormat;
  83 import com.google.gwt.i18n.client.DateTimeFormat.PredefinedFormat;
  84 import com.google.gwt.i18n.client.Dictionary;
  85 import com.google.gwt.i18n.client.TimeZone;
  86 import com.google.gwt.i18n.client.TimeZoneInfo;
  87 import com.google.gwt.i18n.client.constants.TimeZoneConstants;
  88 import com.google.gwt.json.client.JSONArray;
  89 import com.google.gwt.json.client.JSONObject;
  90 import com.google.gwt.json.client.JSONParser;
  91 import com.google.gwt.json.client.JSONString;
  92 import com.google.gwt.json.client.JSONValue;
  93 import com.google.gwt.resources.client.ClientBundle;
  94 import com.google.gwt.resources.client.CssResource;
  95 import com.google.gwt.resources.client.ImageResource;
  96 import com.google.gwt.resources.client.ImageResource.ImageOptions;
  97 import com.google.gwt.user.client.Command;
  98 import com.google.gwt.user.client.Cookies;
  99 import com.google.gwt.user.client.Event;
 100 import com.google.gwt.user.client.History;
 101 import com.google.gwt.user.client.Window;
 102 import com.google.gwt.user.client.ui.AbstractImagePrototype;
 103 import com.google.gwt.user.client.ui.Button;
 104 import com.google.gwt.user.client.ui.Composite;
 105 import com.google.gwt.user.client.ui.FlowPanel;
 106 import com.google.gwt.user.client.ui.HTML;
 107 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
 108 import com.google.gwt.user.client.ui.HasVerticalAlignment;
 109 import com.google.gwt.user.client.ui.HorizontalPanel;
 110 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
 111 import com.google.gwt.user.client.ui.PopupPanel;
 112 import com.google.gwt.user.client.ui.RootPanel;
 113 import com.google.gwt.user.client.ui.VerticalPanel;
 114 import com.google.gwt.view.client.SelectionChangeEvent;
 115 import com.google.gwt.view.client.SelectionChangeEvent.Handler;
 116 import com.google.gwt.view.client.SingleSelectionModel;
 117
 118 /**
 119  * Entry point classes define <code>onModuleLoad()</code>.
 120  */
 121 public class Pithos implements EntryPoint, ResizeHandler {
 122
 123         public static final String HOME_CONTAINER = "pithos";
 124
 125         public static final String TRASH_CONTAINER = "trash";
 126
 127         public static final Configuration config = GWT.create(Configuration.class);
 128
 129         public interface Style extends CssResource {
 130                 String commandAnchor();
 131
 132                 String statistics();
 133
 134                 @ClassName("gwt-HTML")
 135                 String html();
 136
 137                 String uploadAlert();
 138
 139                 String uploadAlertLink();
 140
 141                 String uploadAlertProgress();
 142
 143                 String uploadAlertPercent();
 144
 145                 String uploadAlertClose();
 146         }
 147
 148         public interface Resources extends ClientBundle {
 149                 @Source("Pithos.css")
 150                 Style pithosCss();
 151
 152                 @Source("gr/grnet/pithos/resources/close-popup.png")
 153                 ImageResource closePopup();
 154         }
 155
 156         public static Resources resources = GWT.create(Resources.class);
 157
 158         /**
 159          * Instantiate an application-level image bundle. This object will provide
 160          * programmatic access to all the images needed by widgets.
 161          */
 162         static Images images = (Images) GWT.create(Images.class);
 163
 164     public String getUsername() {
 165         return username;
 166     }
 167
 168     public void setAccount(AccountResource acct) {
 169         account = acct;
 170     }
 171
 172     public AccountResource getAccount() {
 173         return account;
 174     }
 175
 176     public void updateFolder(Folder f, boolean showfiles, Command callback, final boolean openParent) {
 177         folderTreeView.updateFolder(f, showfiles, callback, openParent);
 178     }
 179
 180     public void updateGroupNode(Group group) {
 181         groupTreeView.updateGroupNode(group);
 182     }
 183
 184     public void updateMySharedRoot() {
 185         mysharedTreeView.updateRoot();
 186     }
 187
 188     public void updateSharedFolder(Folder f, boolean showfiles, Command callback) {
 189         mysharedTreeView.updateFolder(f, showfiles, callback);
 190     }
 191
 192     public void updateSharedFolder(Folder f, boolean showfiles) {
 193         updateSharedFolder(f, showfiles, null);
 194     }
 195
 196     public void updateOtherSharedFolder(Folder f, boolean showfiles, Command callback) {
 197         otherSharedTreeView.updateFolder(f, showfiles, callback);
 198     }
 199
 200     public MysharedTreeView getMySharedTreeView() {
 201         return mysharedTreeView;
 202     }
 203
 204     /**
 205          * An aggregate image bundle that pulls together all the images for this
 206          * application into a single bundle.
 207          */
 208         public interface Images extends TopPanel.Images, FileList.Images, ToolsMenu.Images {
 209
 210                 @Source("gr/grnet/pithos/resources/document.png")
 211                 ImageResource folders();
 212
 213                 @Source("gr/grnet/pithos/resources/advancedsettings.png")
 214                 @ImageOptions(width=32, height=32)
 215                 ImageResource tools();
 216         }
 217
 218         private Throwable error;
 219
 220         /**
 221          * The Application Clipboard implementation;
 222          */
 223         private Clipboard clipboard = new Clipboard();
 224
 225         /**
 226          * The top panel that contains the menu bar.
 227          */
 228         private TopPanel topPanel;
 229
 230         /**
 231          * The panel that contains the various system messages.
 232          */
 233         private MessagePanel messagePanel = new MessagePanel(this, Pithos.images);
 234
 235         /**
 236          * The bottom panel that contains the status bar.
 237          */
 238         StatusPanel statusPanel = null;
 239
 240         /**
 241          * The file list widget.
 242          */
 243         private FileList fileList;
 244
 245         /**
 246          * The tab panel that occupies the right side of the screen.
 247          */
 248         private VerticalPanel inner = new VerticalPanel();
 249
 250
 251         /**
 252          * The split panel that will contain the left and right panels.
 253          */
 254         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 255
 256         /**
 257          * The currently selected item in the application, for use by the Edit menu
 258          * commands. Potential types are Folder, File, User and Group.
 259          */
 260         private Object currentSelection;
 261
 262         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 263
 264     private String username = null;
 265
 266     /**
 267      * The authentication token of the current user.
 268      */
 269     private String token;
 270
 271     VerticalPanel trees;
 272
 273     SingleSelectionModel<Folder> folderTreeSelectionModel;
 274     FolderTreeViewModel folderTreeViewModel;
 275     FolderTreeView folderTreeView;
 276
 277     SingleSelectionModel<Folder> mysharedTreeSelectionModel;
 278     MysharedTreeViewModel mysharedTreeViewModel;
 279     MysharedTreeView mysharedTreeView = null;;
 280
 281     protected SingleSelectionModel<Folder> otherSharedTreeSelectionModel;
 282     OtherSharedTreeViewModel otherSharedTreeViewModel;
 283     OtherSharedTreeView otherSharedTreeView = null;
 284
 285     GroupTreeViewModel groupTreeViewModel;
 286     GroupTreeView groupTreeView;
 287
 288     TreeView selectedTree;
 289     protected AccountResource account;
 290
 291     Folder trash;
 292
 293     List<Composite> treeViews = new ArrayList<Composite>();
 294
 295     @SuppressWarnings("rawtypes") List<SingleSelectionModel> selectionModels = new ArrayList<SingleSelectionModel>();
 296
 297     public Button upload;
 298
 299     private HTML numOfFiles;
 300
 301     private Toolbar toolbar;
 302
 303     private FileUploadDialog fileUploadDialog = new FileUploadDialog(this);
 304
 305         UploadAlert uploadAlert;
 306
 307         Date lastModified;
 308
 309         @Override
 310         public void onModuleLoad() {
 311                 if (parseUserCredentials())
 312             initialize();
 313         }
 314
 315     private void initialize() {
 316         lastModified = new Date(); //Initialize if-modified-since value with now.
 317         resources.pithosCss().ensureInjected();
 318         boolean bareContent = Window.Location.getParameter("noframe") != null;
 319         String contentWidth = bareContent ? "100%" : "75%";
 320
 321         VerticalPanel outer = new VerticalPanel();
 322         outer.setWidth("100%");
 323         if (!bareContent) {
 324                 outer.addStyleName("pithos-outer");
 325         }
 326
 327         if (!bareContent) {
 328                 topPanel = new TopPanel(this, Pithos.images);
 329                 topPanel.setWidth("100%");
 330                 outer.add(topPanel);
 331                 outer.setCellHorizontalAlignment(topPanel, HasHorizontalAlignment.ALIGN_CENTER);
 332         }
 333
 334         messagePanel.setVisible(false);
 335         outer.add(messagePanel);
 336         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 337         outer.setCellVerticalAlignment(messagePanel, HasVerticalAlignment.ALIGN_MIDDLE);
 338
 339         HorizontalPanel header = new HorizontalPanel();
 340         header.addStyleName("pithos-header");
 341         header.setWidth(contentWidth);
 342         if (bareContent)
 343                 header.addStyleName("pithos-header-noframe");
 344         upload = new Button("Upload", new ClickHandler() {
 345             @Override
 346             public void onClick(ClickEvent event) {
 347                 if (getSelection() != null)
 348                         new UploadFileCommand(Pithos.this, null, getSelection()).execute();
 349             }
 350         });
 351         upload.addStyleName("pithos-uploadButton");
 352         header.add(upload);
 353         header.setCellHorizontalAlignment(upload, HasHorizontalAlignment.ALIGN_LEFT);
 354         header.setCellVerticalAlignment(upload, HasVerticalAlignment.ALIGN_MIDDLE);
 355
 356         toolbar = new Toolbar(this);
 357         header.add(toolbar);
 358         header.setCellHorizontalAlignment(toolbar, HasHorizontalAlignment.ALIGN_CENTER);
 359         header.setCellVerticalAlignment(toolbar, HasVerticalAlignment.ALIGN_MIDDLE);
 360
 361         HorizontalPanel folderStatistics = new HorizontalPanel();
 362         folderStatistics.addStyleName("pithos-folderStatistics");
 363         numOfFiles = new HTML();
 364         folderStatistics.add(numOfFiles);
 365         folderStatistics.setCellVerticalAlignment(numOfFiles, HasVerticalAlignment.ALIGN_MIDDLE);
 366         HTML numOfFilesLabel = new HTML("&nbsp;Files");
 367         folderStatistics.add(numOfFilesLabel);
 368         folderStatistics.setCellVerticalAlignment(numOfFilesLabel, HasVerticalAlignment.ALIGN_MIDDLE);
 369         header.add(folderStatistics);
 370         header.setCellHorizontalAlignment(folderStatistics, HasHorizontalAlignment.ALIGN_RIGHT);
 371         header.setCellVerticalAlignment(folderStatistics, HasVerticalAlignment.ALIGN_MIDDLE);
 372         header.setCellWidth(folderStatistics, "40px");
 373         outer.add(header);
 374         outer.setCellHorizontalAlignment(header, HasHorizontalAlignment.ALIGN_CENTER);
 375         // Inner contains the various lists
 376         inner.sinkEvents(Event.ONCONTEXTMENU);
 377         inner.setWidth("100%");
 378
 379         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 380         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 381             @Override
 382             public void onSelectionChange(SelectionChangeEvent event) {
 383                 if (folderTreeSelectionModel.getSelectedObject() != null) {
 384                     deselectOthers(folderTreeView, folderTreeSelectionModel);
 385                     applyPermissions(folderTreeSelectionModel.getSelectedObject());
 386                     Folder f = folderTreeSelectionModel.getSelectedObject();
 387                         updateFolder(f, true, new Command() {
 388
 389                                 @Override
 390                                 public void execute() {
 391                                         updateStatistics();
 392                                 }
 393                         }, true);
 394                         showRelevantToolbarButtons();
 395                 }
 396                                 else {
 397                                         if (getSelectedTree().equals(folderTreeView))
 398                                                 setSelectedTree(null);
 399                                         if (getSelectedTree() == null)
 400                                                 showRelevantToolbarButtons();
 401                                 }
 402             }
 403         });
 404         selectionModels.add(folderTreeSelectionModel);
 405
 406         folderTreeViewModel = new FolderTreeViewModel(this, folderTreeSelectionModel);
 407         folderTreeView = new FolderTreeView(folderTreeViewModel);
 408         treeViews.add(folderTreeView);
 409
 410         fileList = new FileList(this, images);
 411         inner.add(fileList);
 412
 413         trees = new VerticalPanel();
 414         trees.setWidth("100%");
 415
 416         // Add the left and right panels to the split panel.
 417         splitPanel.setLeftWidget(trees);
 418         FlowPanel right = new FlowPanel();
 419         right.getElement().setId("rightPanel");
 420         right.add(inner);
 421         splitPanel.setRightWidget(right);
 422         splitPanel.setSplitPosition("219px");
 423         splitPanel.setSize("100%", "100%");
 424         splitPanel.addStyleName("pithos-splitPanel");
 425         splitPanel.setWidth(contentWidth);
 426         outer.add(splitPanel);
 427         outer.setCellHorizontalAlignment(splitPanel, HasHorizontalAlignment.ALIGN_CENTER);
 428
 429         if (!bareContent) {
 430                 statusPanel = new StatusPanel();
 431                 statusPanel.setWidth("100%");
 432                 outer.add(statusPanel);
 433                 outer.setCellHorizontalAlignment(statusPanel, HasHorizontalAlignment.ALIGN_CENTER);
 434         }
 435         else
 436                 splitPanel.addStyleName("pithos-splitPanel-noframe");
 437
 438         // Hook the window resize event, so that we can adjust the UI.
 439         Window.addResizeHandler(this);
 440         // Clear out the window's built-in margin, because we want to take
 441         // advantage of the entire client area.
 442         Window.setMargin("0px");
 443         // Finally, add the outer panel to the RootPanel, so that it will be
 444         // displayed.
 445         RootPanel.get().add(outer);
 446         // Call the window resized handler to get the initial sizes setup. Doing
 447         // this in a deferred command causes it to occur after all widgets'
 448         // sizes have been computed by the browser.
 449         Scheduler.get().scheduleIncremental(new RepeatingCommand() {
 450
 451                         @Override
 452                         public boolean execute() {
 453                                 if (!isCloudbarReady())
 454                                         return true;
 455                 onWindowResized(Window.getClientHeight());
 456                                 return false;
 457                         }
 458                 });
 459
 460         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 461             @Override
 462             public void execute() {
 463                 fetchAccount(new Command() {
 464
 465                                         @Override
 466                                         public void execute() {
 467                                 if (!account.hasHomeContainer())
 468                                     createHomeContainer(account, this);
 469                                 else if (!account.hasTrashContainer())
 470                                         createTrashContainer(this);
 471                                 else {
 472                                         for (Folder f : account.getContainers())
 473                                                 if (f.getName().equals(Pithos.TRASH_CONTAINER)) {
 474                                                         trash = f;
 475                                                         break;
 476                                                 }
 477                                     trees.add(folderTreeView);
 478                                     folderTreeViewModel.initialize(account, new Command() {
 479
 480                                                                 @Override
 481                                                                 public void execute() {
 482                                                     createMySharedTree();
 483                                                                 }
 484                                                         });
 485
 486                                     HorizontalPanel separator = new HorizontalPanel();
 487                                     separator.addStyleName("pithos-statisticsSeparator");
 488                                     separator.add(new HTML(""));
 489                                     trees.add(separator);
 490
 491                                     groupTreeViewModel = new GroupTreeViewModel(Pithos.this);
 492                                     groupTreeView = new GroupTreeView(groupTreeViewModel);
 493                                     treeViews.add(groupTreeView);
 494                                     trees.add(groupTreeView);
 495                                     folderTreeView.showStatistics(account);
 496                                 }
 497                                         }
 498                                 });
 499             }
 500         });
 501     }
 502
 503     public void scheduleResfresh() {
 504                 Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {
 505
 506                         @Override
 507                         public boolean execute() {
 508                                 final Folder f = getSelection();
 509                                 if (f == null)
 510                                         return true;
 511
 512                         HeadRequest<Folder> head = new HeadRequest<Folder>(Folder.class, getApiPath(), getUsername(), "/" + f.getContainer()) {
 513
 514                                         @Override
 515                                         public void onSuccess(Folder _result) {
 516                                                 lastModified = new Date();
 517                                                 if (getSelectedTree().equals(folderTreeView))
 518                                                         updateFolder(f, true, new Command() {
 519
 520                                                                 @Override
 521                                                                 public void execute() {
 522                                                                         scheduleResfresh();
 523                                                                 }
 524
 525                                                         }, false);
 526                                                 else if (getSelectedTree().equals(mysharedTreeView))
 527                                                         updateSharedFolder(f, true, new Command() {
 528
 529                                                                 @Override
 530                                                                 public void execute() {
 531                                                                         scheduleResfresh();
 532                                                                 }
 533                                                         });
 534                                         }
 535
 536                                         @Override
 537                                         public void onError(Throwable t) {
 538                                                 if (t instanceof RestException && ((RestException) t).getHttpStatusCode() == HttpStatus.SC_NOT_MODIFIED)
 539                                                         scheduleResfresh();
 540                                                 else if (retries >= MAX_RETRIES) {
 541                                         GWT.log("Error heading folder", t);
 542                                                         setError(t);
 543                                         if (t instanceof RestException)
 544                                             displayError("Error heading folder: " + ((RestException) t).getHttpStatusText());
 545                                         else
 546                                             displayError("System error heading folder: " + t.getMessage());
 547                                 }
 548                                 else {//retry
 549                                         GWT.log("Retry " + retries);
 550                                         Scheduler.get().scheduleDeferred(this);
 551                                 }
 552                                         }
 553
 554                                         @Override
 555                                         protected void onUnauthorized(Response response) {
 556                                                 if (retries >= MAX_RETRIES)
 557                                                         sessionExpired();
 558                                 else //retry
 559                                         Scheduler.get().scheduleDeferred(this);
 560                                         }
 561                                 };
 562                                 head.setHeader("X-Auth-Token", getToken());
 563                                 head.setHeader("If-Modified-Since", DateTimeFormat.getFormat("EEE, dd MMM yyyy HH:mm:ss").format(lastModified, TimeZone.createTimeZone(0)) + " GMT");
 564                                 Scheduler.get().scheduleDeferred(head);
 565
 566                                 return false;
 567                         }
 568                 }, 3000);
 569     }
 570
 571     public void applyPermissions(Folder f) {
 572         if (f != null) {
 573                 if (f.isInTrash()) {
 574                         upload.setEnabled(false);
 575                         disableUploadArea();
 576                 }
 577                 else {
 578                         Boolean[] perms = f.getPermissions().get(username);
 579                         if (f.getOwner().equals(username) || (perms != null && perms[1] != null && perms[1])) {
 580                                 upload.setEnabled(true);
 581                                 enableUploadArea();
 582                         }
 583                         else {
 584                                 upload.setEnabled(false);
 585                                 disableUploadArea();
 586                         }
 587                 }
 588         }
 589         else {
 590                 upload.setEnabled(false);
 591                 disableUploadArea();
 592         }
 593         }
 594
 595         @SuppressWarnings({ "rawtypes", "unchecked" })
 596         public void deselectOthers(TreeView _selectedTree, SingleSelectionModel model) {
 597         selectedTree = _selectedTree;
 598
 599         for (SingleSelectionModel s : selectionModels)
 600             if (!s.equals(model) && s.getSelectedObject() != null)
 601                 s.setSelected(s.getSelectedObject(), false);
 602     }
 603
 604     public void showFiles(final Folder f) {
 605         Set<File> files = f.getFiles();
 606         showFiles(files);
 607     }
 608
 609     public void showFiles(Set<File> files) {
 610         fileList.setFiles(new ArrayList<File>(files));
 611     }
 612
 613     /**
 614          * Parse and store the user credentials to the appropriate fields.
 615          */
 616         private boolean parseUserCredentials() {
 617         Configuration conf = (Configuration) GWT.create(Configuration.class);
 618                 Dictionary otherProperties = Dictionary.getDictionary("otherProperties");
 619         String cookie = otherProperties.get("authCookie");
 620         String auth = Cookies.getCookie(cookie);
 621         if (auth == null) {
 622             authenticateUser();
 623             return false;
 624         }
 625         if (auth.startsWith("\""))
 626                 auth = auth.substring(1);
 627         if (auth.endsWith("\""))
 628                 auth = auth.substring(0, auth.length() - 1);
 629                 String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 630                 if (authSplit.length != 2) {
 631                     authenticateUser();
 632                     return false;
 633                 }
 634                 username = authSplit[0];
 635                 token = authSplit[1];
 636
 637         String gotoUrl = Window.Location.getParameter("goto");
 638                 if (gotoUrl != null && gotoUrl.length() > 0) {
 639                         Window.Location.assign(gotoUrl);
 640                         return false;
 641                 }
 642                 return true;
 643     }
 644
 645     /**
 646          * Redirect the user to the login page for authentication.
 647          */
 648         protected void authenticateUser() {
 649                 Dictionary otherProperties = Dictionary.getDictionary("otherProperties");
 650         Window.Location.assign(otherProperties.get("loginUrl") + Window.Location.getHref());
 651         }
 652
 653         public void fetchAccount(final Command callback) {
 654         String path = "?format=json";
 655
 656         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, getApiPath(), username, path) {
 657             @Override
 658             public void onSuccess(AccountResource _result) {
 659                 account = _result;
 660                 if (callback != null)
 661                         callback.execute();
 662             }
 663
 664             @Override
 665             public void onError(Throwable t) {
 666                 GWT.log("Error getting account", t);
 667                                 setError(t);
 668                 if (t instanceof RestException)
 669                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 670                 else
 671                     displayError("System error fetching user data: " + t.getMessage());
 672             }
 673
 674                         @Override
 675                         protected void onUnauthorized(Response response) {
 676                                 sessionExpired();
 677                         }
 678         };
 679         getAccount.setHeader("X-Auth-Token", token);
 680         Scheduler.get().scheduleDeferred(getAccount);
 681     }
 682
 683     public void updateStatistics() {
 684         HeadRequest<AccountResource> headAccount = new HeadRequest<AccountResource>(AccountResource.class, getApiPath(), username, "", account) {
 685
 686                         @Override
 687                         public void onSuccess(AccountResource _result) {
 688                                 folderTreeView.showStatistics(account);
 689                         }
 690
 691                         @Override
 692                         public void onError(Throwable t) {
 693                 GWT.log("Error getting account", t);
 694                                 setError(t);
 695                 if (t instanceof RestException)
 696                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 697                 else
 698                     displayError("System error fetching user data: " + t.getMessage());
 699                         }
 700
 701                         @Override
 702                         protected void onUnauthorized(Response response) {
 703                                 sessionExpired();
 704                         }
 705                 };
 706                 headAccount.setHeader("X-Auth-Token", token);
 707                 Scheduler.get().scheduleDeferred(headAccount);
 708         }
 709
 710         protected void createHomeContainer(final AccountResource _account, final Command callback) {
 711         String path = "/" + Pithos.HOME_CONTAINER;
 712         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 713             @Override
 714             public void onSuccess(Resource result) {
 715                 if (!_account.hasTrashContainer())
 716                         createTrashContainer(callback);
 717                 else
 718                         fetchAccount(callback);
 719             }
 720
 721             @Override
 722             public void onError(Throwable t) {
 723                 GWT.log("Error creating pithos", t);
 724                                 setError(t);
 725                 if (t instanceof RestException)
 726                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 727                 else
 728                     displayError("System error Error creating pithos: " + t.getMessage());
 729             }
 730
 731                         @Override
 732                         protected void onUnauthorized(Response response) {
 733                                 sessionExpired();
 734                         }
 735         };
 736         createPithos.setHeader("X-Auth-Token", getToken());
 737         Scheduler.get().scheduleDeferred(createPithos);
 738     }
 739
 740     protected void createTrashContainer(final Command callback) {
 741         String path = "/" + Pithos.TRASH_CONTAINER;
 742         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 743             @Override
 744             public void onSuccess(Resource result) {
 745                         fetchAccount(callback);
 746             }
 747
 748             @Override
 749             public void onError(Throwable t) {
 750                 GWT.log("Error creating pithos", t);
 751                                 setError(t);
 752                 if (t instanceof RestException)
 753                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 754                 else
 755                     displayError("System error Error creating pithos: " + t.getMessage());
 756             }
 757
 758                         @Override
 759                         protected void onUnauthorized(Response response) {
 760                                 sessionExpired();
 761                         }
 762         };
 763         createPithos.setHeader("X-Auth-Token", getToken());
 764         Scheduler.get().scheduleDeferred(createPithos);
 765     }
 766
 767     /**
 768          * Creates an HTML fragment that places an image & caption together, for use
 769          * in a group header.
 770          *
 771          * @param imageProto an image prototype for an image
 772          * @param caption the group caption
 773          * @return the header HTML fragment
 774          */
 775         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 776                 String captionHTML = "<table class='caption' cellpadding='0' "
 777                 + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 778                 + "</td><td id =" + caption +" class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 779                 + caption + "</b></td></tr></table>";
 780                 return captionHTML;
 781         }
 782
 783         protected void onWindowResized(int height) {
 784                 // Adjust the split panel to take up the available room in the window.
 785                 int newHeight = height - splitPanel.getAbsoluteTop() - 153;
 786                 if (newHeight < 1)
 787                         newHeight = 1;
 788                 splitPanel.setHeight("" + newHeight);
 789                 inner.setHeight("" + newHeight);
 790         }
 791
 792         native boolean isCloudbarReady()/*-{
 793                 if ($wnd.$("div.servicesbar") && $wnd.$("div.servicesbar").height() > 0)
 794                         return true;
 795                 return false;
 796         }-*/;
 797
 798         @Override
 799         public void onResize(ResizeEvent event) {
 800                 int height = event.getHeight();
 801                 onWindowResized(height);
 802         }
 803
 804         /**
 805          * Display an error message.
 806          *
 807          * @param msg the message to display
 808          */
 809         public void displayError(String msg) {
 810                 messagePanel.displayError(msg);
 811                 onWindowResized(Window.getClientHeight());
 812         }
 813
 814         /**
 815          * Display a warning message.
 816          *
 817          * @param msg the message to display
 818          */
 819         public void displayWarning(String msg) {
 820                 messagePanel.displayWarning(msg);
 821                 onWindowResized(Window.getClientHeight());
 822         }
 823
 824         /**
 825          * Display an informational message.
 826          *
 827          * @param msg the message to display
 828          */
 829         public void displayInformation(String msg) {
 830                 messagePanel.displayInformation(msg);
 831                 onWindowResized(Window.getClientHeight());
 832         }
 833
 834         /**
 835          * Retrieve the fileList.
 836          *
 837          * @return the fileList
 838          */
 839         public FileList getFileList() {
 840                 return fileList;
 841         }
 842
 843         /**
 844          * Retrieve the topPanel.
 845          *
 846          * @return the topPanel
 847          */
 848         TopPanel getTopPanel() {
 849                 return topPanel;
 850         }
 851
 852         /**
 853          * Retrieve the clipboard.
 854          *
 855          * @return the clipboard
 856          */
 857         public Clipboard getClipboard() {
 858                 return clipboard;
 859         }
 860
 861         public StatusPanel getStatusPanel() {
 862                 return statusPanel;
 863         }
 864
 865         public String getToken() {
 866                 return token;
 867         }
 868
 869         public static native void preventIESelection() /*-{
 870                 $doc.body.onselectstart = function() {
 871                         return false;
 872                 };
 873         }-*/;
 874
 875         public static native void enableIESelection() /*-{
 876                 if ($doc.body.onselectstart != null)
 877                         $doc.body.onselectstart = null;
 878         }-*/;
 879
 880         /**
 881          * @return the absolute path of the API root URL
 882          */
 883         public String getApiPath() {
 884                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 885                 return conf.apiPath();
 886         }
 887
 888         /**
 889          * History support for folder navigation
 890          * adds a new browser history entry
 891          *
 892          * @param key
 893          */
 894         public void updateHistory(String key){
 895 //              Replace any whitespace of the initial string to "+"
 896 //              String result = key.replaceAll("\\s","+");
 897 //              Add a new browser history entry.
 898 //              History.newItem(result);
 899                 History.newItem(key);
 900         }
 901
 902     public void deleteFolder(final Folder folder, final Command callback) {
 903         String path = "/" + folder.getContainer() + "/" + folder.getPrefix() + "?delimiter=/" + "&t=" + System.currentTimeMillis();
 904         DeleteRequest deleteFolder = new DeleteRequest(getApiPath(), folder.getOwner(), path) {
 905
 906                         @Override
 907                         protected void onUnauthorized(Response response) {
 908                                 sessionExpired();
 909                         }
 910
 911                         @Override
 912                         public void onSuccess(Resource result) {
 913                 updateFolder(folder.getParent(), true, new Command() {
 914
 915                                         @Override
 916                                         public void execute() {
 917                                                 folderTreeSelectionModel.setSelected(folder.getParent(), true);
 918                                                 updateStatistics();
 919                                                 if (callback != null)
 920                                                         callback.execute();
 921                                         }
 922                                 }, true);
 923                         }
 924
 925                         @Override
 926                         public void onError(Throwable t) {
 927                 GWT.log("", t);
 928                                 setError(t);
 929                 if (t instanceof RestException) {
 930                         if (((RestException) t).getHttpStatusCode() != Response.SC_NOT_FOUND)
 931                                 displayError("Unable to delete folder: "+((RestException) t).getHttpStatusText());
 932                         else
 933                                 onSuccess(null);
 934                 }
 935                 else
 936                     displayError("System error unable to delete folder: " + t.getMessage());
 937                         }
 938                 };
 939                 deleteFolder.setHeader("X-Auth-Token", getToken());
 940                 Scheduler.get().scheduleDeferred(deleteFolder);
 941     }
 942
 943     public FolderTreeView getFolderTreeView() {
 944         return folderTreeView;
 945     }
 946
 947     public void copyFiles(final Iterator<File> iter, final String targetUsername, final String targetUri, final Command callback) {
 948         if (iter.hasNext()) {
 949             File file = iter.next();
 950             String path = targetUri + "/" + file.getName();
 951             PutRequest copyFile = new PutRequest(getApiPath(), targetUsername, path) {
 952                 @Override
 953                 public void onSuccess(Resource result) {
 954                     copyFiles(iter, targetUsername, targetUri, callback);
 955                 }
 956
 957                 @Override
 958                 public void onError(Throwable t) {
 959                     GWT.log("", t);
 960                                         setError(t);
 961                     if (t instanceof RestException) {
 962                         displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 963                     }
 964                     else
 965                         displayError("System error unable to copy file: "+t.getMessage());
 966                 }
 967
 968                                 @Override
 969                                 protected void onUnauthorized(Response response) {
 970                                         sessionExpired();
 971                                 }
 972             };
 973             copyFile.setHeader("X-Auth-Token", getToken());
 974             copyFile.setHeader("X-Copy-From", URL.encodePathSegment(file.getUri()));
 975             if (!file.getOwner().equals(targetUsername))
 976                 copyFile.setHeader("X-Source-Account", URL.encodePathSegment(file.getOwner()));
 977             copyFile.setHeader("Content-Type", file.getContentType());
 978             Scheduler.get().scheduleDeferred(copyFile);
 979         }
 980         else  if (callback != null) {
 981             callback.execute();
 982         }
 983     }
 984
 985     public void copyFolder(final Folder f, final String targetUsername, final String targetUri, boolean move, final Command callback) {
 986         String path = targetUri + "?delimiter=/";
 987         PutRequest copyFolder = new PutRequest(getApiPath(), targetUsername, path) {
 988             @Override
 989             public void onSuccess(Resource result) {
 990                 if (callback != null)
 991                         callback.execute();
 992             }
 993
 994             @Override
 995             public void onError(Throwable t) {
 996                 GWT.log("", t);
 997                                 setError(t);
 998                if (t instanceof RestException) {
 999                     displayError("Unable to copy folder: " + ((RestException) t).getHttpStatusText());
1000                 }
1001                 else
1002                     displayError("System error copying folder: " + t.getMessage());
1003             }
1004
1005                         @Override
1006                         protected void onUnauthorized(Response response) {
1007                                 sessionExpired();
1008                         }
1009         };
1010         copyFolder.setHeader("X-Auth-Token", getToken());
1011         copyFolder.setHeader("Accept", "*/*");
1012         copyFolder.setHeader("Content-Length", "0");
1013         copyFolder.setHeader("Content-Type", "application/directory");
1014         if (!f.getOwner().equals(targetUsername))
1015                 copyFolder.setHeader("X-Source-Account", f.getOwner());
1016         if (move)
1017             copyFolder.setHeader("X-Move-From", URL.encodePathSegment(f.getUri()));
1018         else
1019                 copyFolder.setHeader("X-Copy-From", URL.encodePathSegment(f.getUri()));
1020         Scheduler.get().scheduleDeferred(copyFolder);
1021     }
1022
1023     public void addSelectionModel(@SuppressWarnings("rawtypes") SingleSelectionModel model) {
1024         selectionModels.add(model);
1025     }
1026
1027         public OtherSharedTreeView getOtherSharedTreeView() {
1028                 return otherSharedTreeView;
1029         }
1030
1031         public void updateTrash(boolean showFiles, Command callback) {
1032                 updateFolder(trash, showFiles, callback, true);
1033         }
1034
1035         public void updateGroupsNode() {
1036                 groupTreeView.updateGroupNode(null);
1037         }
1038
1039         public Group addGroup(String groupname) {
1040                 Group newGroup = new Group(groupname);
1041                 account.addGroup(newGroup);
1042                 groupTreeView.updateGroupNode(null);
1043                 return newGroup;
1044         }
1045
1046         public void removeGroup(Group group) {
1047                 account.removeGroup(group);
1048                 updateGroupsNode();
1049         }
1050
1051         public TreeView getSelectedTree() {
1052                 return selectedTree;
1053         }
1054
1055         public void setSelectedTree(TreeView selected) {
1056                 selectedTree = selected;
1057         }
1058
1059         public Folder getSelection() {
1060                 if (selectedTree != null)
1061                         return selectedTree.getSelection();
1062                 return null;
1063         }
1064
1065         public void showFolderStatistics(int folderFileCount) {
1066                 numOfFiles.setHTML(String.valueOf(folderFileCount));
1067         }
1068
1069         public GroupTreeView getGroupTreeView() {
1070                 return groupTreeView;
1071         }
1072
1073         public void sessionExpired() {
1074                 new SessionExpiredDialog(this).center();
1075         }
1076
1077         public void updateRootFolder(Command callback) {
1078                 updateFolder(account.getPithos(), false, callback, true);
1079         }
1080
1081         void createMySharedTree() {
1082                 mysharedTreeSelectionModel = new SingleSelectionModel<Folder>();
1083                 mysharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
1084                     @Override
1085                     public void onSelectionChange(SelectionChangeEvent event) {
1086                         if (mysharedTreeSelectionModel.getSelectedObject() != null) {
1087                             deselectOthers(mysharedTreeView, mysharedTreeSelectionModel);
1088                             upload.setEnabled(false);
1089                             disableUploadArea();
1090                             updateSharedFolder(mysharedTreeSelectionModel.getSelectedObject(), true);
1091                                         showRelevantToolbarButtons();
1092                         }
1093                                 else {
1094                                         if (getSelectedTree().equals(mysharedTreeView))
1095                                                 setSelectedTree(null);
1096                                         if (getSelectedTree() == null)
1097                                                 showRelevantToolbarButtons();
1098                                 }
1099                     }
1100                 });
1101                 selectionModels.add(mysharedTreeSelectionModel);
1102                 mysharedTreeViewModel = new MysharedTreeViewModel(Pithos.this, mysharedTreeSelectionModel);
1103                 mysharedTreeViewModel.initialize(new Command() {
1104
1105                         @Override
1106                         public void execute() {
1107                             mysharedTreeView = new MysharedTreeView(mysharedTreeViewModel);
1108                                 trees.insert(mysharedTreeView, 2);
1109                                 treeViews.add(mysharedTreeView);
1110                                 createOtherSharedTree();
1111                         }
1112                 });
1113         }
1114
1115         void createOtherSharedTree() {
1116                 otherSharedTreeSelectionModel = new SingleSelectionModel<Folder>();
1117                 otherSharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
1118                     @Override
1119                     public void onSelectionChange(SelectionChangeEvent event) {
1120                         if (otherSharedTreeSelectionModel.getSelectedObject() != null) {
1121                             deselectOthers(otherSharedTreeView, otherSharedTreeSelectionModel);
1122                             applyPermissions(otherSharedTreeSelectionModel.getSelectedObject());
1123                             updateOtherSharedFolder(otherSharedTreeSelectionModel.getSelectedObject(), true, null);
1124                                         showRelevantToolbarButtons();
1125                         }
1126                                 else {
1127                                         if (getSelectedTree().equals(otherSharedTreeView))
1128                                                 setSelectedTree(null);
1129                                         if (getSelectedTree() == null)
1130                                                 showRelevantToolbarButtons();
1131                                 }
1132                     }
1133                 });
1134                 selectionModels.add(otherSharedTreeSelectionModel);
1135                 otherSharedTreeViewModel = new OtherSharedTreeViewModel(Pithos.this, otherSharedTreeSelectionModel);
1136                 otherSharedTreeViewModel.initialize(new Command() {
1137
1138                         @Override
1139                         public void execute() {
1140                             otherSharedTreeView = new OtherSharedTreeView(otherSharedTreeViewModel);
1141                                 trees.insert(otherSharedTreeView, 1);
1142                                 treeViews.add(otherSharedTreeView);
1143                                 scheduleResfresh();
1144                         }
1145                 });
1146         }
1147
1148         public native void log1(String message)/*-{
1149                 $wnd.console.log(message);
1150         }-*/;
1151
1152         public String getErrorData() {
1153                 if (error != null)
1154                         return error.toString();
1155                 return "";
1156         }
1157
1158         public void setError(Throwable t) {
1159                 error = t;
1160         }
1161
1162         public void showRelevantToolbarButtons() {
1163                 toolbar.showRelevantButtons();
1164         }
1165
1166         public FileUploadDialog getFileUploadDialog() {
1167                 if (fileUploadDialog == null)
1168                         fileUploadDialog = new FileUploadDialog(this);
1169                 return fileUploadDialog;
1170         }
1171
1172         public void hideUploadIndicator() {
1173                 upload.removeStyleName("pithos-uploadButton-loading");
1174                 upload.setTitle("");
1175         }
1176
1177         public void showUploadIndicator() {
1178                 upload.addStyleName("pithos-uploadButton-loading");
1179                 upload.setTitle("Upload in progress. Click for details.");
1180         }
1181
1182         public void scheduleFolderHeadCommand(final Folder folder, final Command callback) {
1183                 if (folder == null) {
1184                         if (callback != null)
1185                                 callback.execute();
1186                 }
1187                 else {
1188                         HeadRequest<Folder> headFolder = new HeadRequest<Folder>(Folder.class, getApiPath(), folder.getOwner(), folder.getUri(), folder) {
1189
1190                                 @Override
1191                                 public void onSuccess(Folder _result) {
1192                                         if (callback != null)
1193                                                 callback.execute();
1194                                 }
1195
1196                                 @Override
1197                                 public void onError(Throwable t) {
1198                                 if (t instanceof RestException) {
1199                                         if (((RestException) t).getHttpStatusCode() == Response.SC_NOT_FOUND) {
1200                                 final String path = folder.getUri();
1201                                 PutRequest newFolder = new PutRequest(getApiPath(), folder.getOwner(), path) {
1202                                     @Override
1203                                     public void onSuccess(Resource _result) {
1204                                         scheduleFolderHeadCommand(folder, callback);
1205                                     }
1206
1207                                     @Override
1208                                     public void onError(Throwable _t) {
1209                                         GWT.log("", _t);
1210                                                                 setError(_t);
1211                                         if(_t instanceof RestException){
1212                                             displayError("Unable to create folder: " + ((RestException) _t).getHttpStatusText());
1213                                         }
1214                                         else
1215                                             displayError("System error creating folder: " + _t.getMessage());
1216                                     }
1217
1218                                                 @Override
1219                                                 protected void onUnauthorized(Response response) {
1220                                                         sessionExpired();
1221                                                 }
1222                                 };
1223                                 newFolder.setHeader("X-Auth-Token", getToken());
1224                                 newFolder.setHeader("Content-Type", "application/folder");
1225                                 newFolder.setHeader("Accept", "*/*");
1226                                 newFolder.setHeader("Content-Length", "0");
1227                                 Scheduler.get().scheduleDeferred(newFolder);
1228                                         }
1229                                         else
1230                                                 displayError("Error heading folder: " + ((RestException) t).getHttpStatusText());
1231                                 }
1232                                 else
1233                                     displayError("System error heading folder: " + t.getMessage());
1234
1235                                 GWT.log("Error heading folder", t);
1236                                         setError(t);
1237                                 }
1238
1239                                 @Override
1240                                 protected void onUnauthorized(Response response) {
1241                                         sessionExpired();
1242                                 }
1243                         };
1244                         headFolder.setHeader("X-Auth-Token", getToken());
1245                         Scheduler.get().scheduleDeferred(headFolder);
1246                 }
1247         }
1248
1249         public void scheduleFileHeadCommand(File f, final Command callback) {
1250                 HeadRequest<File> headFile = new HeadRequest<File>(File.class, getApiPath(), f.getOwner(), f.getUri(), f) {
1251
1252                         @Override
1253                         public void onSuccess(File _result) {
1254                                 if (callback != null)
1255                                         callback.execute();
1256                         }
1257
1258                         @Override
1259                         public void onError(Throwable t) {
1260                         GWT.log("Error heading file", t);
1261                                 setError(t);
1262                         if (t instanceof RestException)
1263                             displayError("Error heading file: " + ((RestException) t).getHttpStatusText());
1264                         else
1265                             displayError("System error heading file: " + t.getMessage());
1266                         }
1267
1268                         @Override
1269                         protected void onUnauthorized(Response response) {
1270                                 sessionExpired();
1271                         }
1272                 };
1273                 headFile.setHeader("X-Auth-Token", getToken());
1274                 Scheduler.get().scheduleDeferred(headFile);
1275         }
1276
1277         public boolean isMySharedSelected() {
1278                 return getSelectedTree().equals(getMySharedTreeView());
1279         }
1280
1281         private Folder getUploadFolder() {
1282                 if (folderTreeView.equals(getSelectedTree()) || otherSharedTreeView.equals(getSelectedTree())) {
1283                         return getSelection();
1284                 }
1285                 return null;
1286         }
1287
1288         private void updateUploadFolder() {
1289                 updateUploadFolder(null);
1290         }
1291
1292         private void updateUploadFolder(final JsArrayString urls) {
1293                 if (folderTreeView.equals(getSelectedTree()) || otherSharedTreeView.equals(getSelectedTree())) {
1294                         Folder f = getSelection();
1295                         if (getSelectedTree().equals(getFolderTreeView()))
1296                                 updateFolder(f, true, new Command() {
1297
1298                                         @Override
1299                                         public void execute() {
1300                                                 updateStatistics();
1301                                                 if (urls != null)
1302                                                         selectUploadedFiles(urls);
1303                                         }
1304                                 }, false);
1305                         else
1306                                 updateOtherSharedFolder(f, true, null);
1307                 }
1308         }
1309
1310         public native void disableUploadArea() /*-{
1311                 var uploader = $wnd.$("#uploader").pluploadQueue();
1312                 var dropElm = $wnd.document.getElementById('rightPanel');
1313                 $wnd.plupload.removeAllEvents(dropElm, uploader.id);
1314         }-*/;
1315
1316         public native void enableUploadArea() /*-{
1317                 var uploader = $wnd.$("#uploader").pluploadQueue();
1318                 var dropElm = $wnd.document.getElementById('rightPanel');
1319                 $wnd.plupload.removeAllEvents(dropElm, uploader.id);
1320                 if (uploader.runtime == 'html5') {
1321                         uploader.settings.drop_element = 'rightPanel';
1322                         uploader.trigger('PostInit');
1323                 }
1324         }-*/;
1325
1326         public void showUploadAlert(int nOfFiles) {
1327                 if (uploadAlert == null)
1328                         uploadAlert = new UploadAlert(this, nOfFiles);
1329                 if (!uploadAlert.isShowing())
1330                         uploadAlert.setPopupPositionAndShow(new PopupPanel.PositionCallback() {
1331
1332                                 @Override
1333                                 public void setPosition(int offsetWidth, int offsetHeight) {
1334                                         uploadAlert.setPopupPosition((Window.getClientWidth() - offsetWidth)/2, statusPanel.getAbsoluteTop() - offsetHeight);
1335                                 }
1336                         });
1337                 uploadAlert.setNumOfFiles(nOfFiles);
1338         }
1339
1340         public void hideUploadAlert() {
1341                 if (uploadAlert != null && uploadAlert.isShowing())
1342                         uploadAlert.hide();
1343         }
1344
1345         public void selectUploadedFiles(JsArrayString urls) {
1346                 List<String> selectedUrls = new ArrayList<String>();
1347                 for (int i=0; i<urls.length(); i++)
1348                         selectedUrls.add(urls.get(i));
1349                 fileList.selectByUrl(selectedUrls);
1350         }
1351
1352         public void deleteAndCreateTrash() {
1353                 DeleteRequest delete = new DeleteRequest(getApiPath(), getUsername(), "/trash") {
1354
1355                         @Override
1356                         protected void onUnauthorized(Response response) {
1357                                 sessionExpired();
1358                         }
1359
1360                         @Override
1361                         public void onSuccess(Resource result) {
1362                                 createTrashContainer(null);
1363                         }
1364
1365                         @Override
1366                         public void onError(Throwable t) {
1367                 GWT.log("Error deleting trash", t);
1368                                 setError(t);
1369                 if (t instanceof RestException)
1370                     displayError("Error deleting trash: " + ((RestException) t).getHttpStatusText());
1371                 else
1372                     displayError("System error deleting trash: " + t.getMessage());
1373                         }
1374                 };
1375                 delete.setHeader("X-Auth-Token", getToken());
1376                 Scheduler.get().scheduleDeferred(delete);
1377         }
1378 }