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 com.google.gwt.core.client.EntryPoint;
  38 import com.google.gwt.core.client.GWT;
  39 import com.google.gwt.core.client.JsArrayString;
  40 import com.google.gwt.core.client.Scheduler;
  41 import com.google.gwt.core.client.Scheduler.RepeatingCommand;
  42 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
  43 import com.google.gwt.event.dom.client.ClickEvent;
  44 import com.google.gwt.event.dom.client.ClickHandler;
  45 import com.google.gwt.event.logical.shared.ResizeEvent;
  46 import com.google.gwt.event.logical.shared.ResizeHandler;
  47 import com.google.gwt.http.client.Request;
  48 import com.google.gwt.http.client.Response;
  49 import com.google.gwt.http.client.URL;
  50 import com.google.gwt.i18n.client.DateTimeFormat;
  51 import com.google.gwt.i18n.client.Dictionary;
  52 import com.google.gwt.i18n.client.TimeZone;
  53 import com.google.gwt.json.client.JSONObject;
  54 import com.google.gwt.resources.client.ClientBundle;
  55 import com.google.gwt.resources.client.CssResource;
  56 import com.google.gwt.resources.client.ImageResource;
  57 import com.google.gwt.resources.client.ImageResource.ImageOptions;
  58 import com.google.gwt.user.client.*;
  59 import com.google.gwt.user.client.ui.*;
  60 import com.google.gwt.view.client.SelectionChangeEvent;
  61 import com.google.gwt.view.client.SelectionChangeEvent.Handler;
  62 import com.google.gwt.view.client.SingleSelectionModel;
  63 import gr.grnet.pithos.web.client.catalog.GetUserCatalogs;
  64 import gr.grnet.pithos.web.client.catalog.UserCatalogs;
  65 import gr.grnet.pithos.web.client.commands.UploadFileCommand;
  66 import gr.grnet.pithos.web.client.foldertree.*;
  67 import gr.grnet.pithos.web.client.grouptree.Group;
  68 import gr.grnet.pithos.web.client.grouptree.GroupTreeView;
  69 import gr.grnet.pithos.web.client.grouptree.GroupTreeViewModel;
  70 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeView;
  71 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeViewModel;
  72 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeView;
  73 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeViewModel;
  74 import gr.grnet.pithos.web.client.rest.*;
  75 import org.apache.http.HttpStatus;
  76
  77 import java.util.*;
  78
  79 /**
  80  * Entry point classes define <code>onModuleLoad()</code>.
  81  */
  82 public class Pithos implements EntryPoint, ResizeHandler {
  83
  84     public static final String HOME_CONTAINER = "pithos";
  85
  86     public static final String TRASH_CONTAINER = "trash";
  87
  88     public static final Configuration config = GWT.create(Configuration.class);
  89
  90     public interface Style extends CssResource {
  91         String commandAnchor();
  92
  93         String statistics();
  94
  95         @ClassName("gwt-HTML")
  96         String html();
  97
  98         String uploadAlert();
  99
 100         String uploadAlertLink();
 101
 102         String uploadAlertProgress();
 103
 104         String uploadAlertPercent();
 105
 106         String uploadAlertClose();
 107     }
 108
 109     public interface Resources extends ClientBundle {
 110         @Source("Pithos.css")
 111         Style pithosCss();
 112
 113         @Source("gr/grnet/pithos/resources/close-popup.png")
 114         ImageResource closePopup();
 115     }
 116
 117     public static Resources resources = GWT.create(Resources.class);
 118
 119     /**
 120      * Instantiate an application-level image bundle. This object will provide
 121      * programmatic access to all the images needed by widgets.
 122      */
 123     static Images images = (Images) GWT.create(Images.class);
 124
 125     public String getUserID() {
 126         return userID;
 127     }
 128
 129     public String getCurrentUserDisplayNameOrID() {
 130         final String displayName = userCatalogs.getDisplayName(getUserID());
 131         return displayName == null ? getUserID() : displayName;
 132     }
 133
 134     public boolean hasUserDisplayNameForID(String id) {
 135         return userCatalogs.getDisplayName(id) != null;
 136     }
 137
 138     public String getUserDisplayNameByID(String id) {
 139         return userCatalogs.getDisplayName(id);
 140     }
 141
 142     public void setAccount(AccountResource acct) {
 143         account = acct;
 144     }
 145
 146     public AccountResource getAccount() {
 147         return account;
 148     }
 149
 150     public void updateFolder(Folder f, boolean showfiles, Command callback, final boolean openParent) {
 151         folderTreeView.updateFolder(f, showfiles, callback, openParent);
 152     }
 153
 154     public void updateGroupNode(Group group) {
 155         groupTreeView.updateGroupNode(group);
 156     }
 157
 158     public void updateMySharedRoot() {
 159         mysharedTreeView.updateRoot();
 160     }
 161
 162     public void updateSharedFolder(Folder f, boolean showfiles, Command callback) {
 163         mysharedTreeView.updateFolder(f, showfiles, callback);
 164     }
 165
 166     public void updateSharedFolder(Folder f, boolean showfiles) {
 167         updateSharedFolder(f, showfiles, null);
 168     }
 169
 170     public void updateOtherSharedFolder(Folder f, boolean showfiles, Command callback) {
 171         otherSharedTreeView.updateFolder(f, showfiles, callback);
 172     }
 173
 174     public MysharedTreeView getMySharedTreeView() {
 175         return mysharedTreeView;
 176     }
 177
 178     /**
 179      * An aggregate image bundle that pulls together all the images for this
 180      * application into a single bundle.
 181      */
 182     public interface Images extends TopPanel.Images, FileList.Images, ToolsMenu.Images {
 183
 184         @Source("gr/grnet/pithos/resources/document.png")
 185         ImageResource folders();
 186
 187         @Source("gr/grnet/pithos/resources/advancedsettings.png")
 188         @ImageOptions(width = 32, height = 32)
 189         ImageResource tools();
 190     }
 191
 192     private Throwable error;
 193
 194     /**
 195      * The Application Clipboard implementation;
 196      */
 197     private Clipboard clipboard = new Clipboard();
 198
 199     /**
 200      * The top panel that contains the menu bar.
 201      */
 202     private TopPanel topPanel;
 203
 204     /**
 205      * The panel that contains the various system messages.
 206      */
 207     private MessagePanel messagePanel = new MessagePanel(this, Pithos.images);
 208
 209     /**
 210      * The bottom panel that contains the status bar.
 211      */
 212     StatusPanel statusPanel = null;
 213
 214     /**
 215      * The file list widget.
 216      */
 217     private FileList fileList;
 218
 219     /**
 220      * The tab panel that occupies the right side of the screen.
 221      */
 222     private VerticalPanel inner = new VerticalPanel();
 223
 224
 225     /**
 226      * The split panel that will contain the left and right panels.
 227      */
 228     private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 229
 230     /**
 231      * The currently selected item in the application, for use by the Edit menu
 232      * commands. Potential types are Folder, File, User and Group.
 233      */
 234     private Object currentSelection;
 235
 236     public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 237
 238     /**
 239      * The ID that uniquely identifies the user in Pithos+.
 240      * Currently this is a UUID. It used to be the user's email.
 241      */
 242     private String userID = null;
 243
 244     /**
 245      * Hold mappings from user UUIDs to emails and vice-versa.
 246      */
 247     private UserCatalogs userCatalogs = new UserCatalogs();
 248
 249     /**
 250      * The authentication token of the current user.
 251      */
 252     private String userToken;
 253
 254     VerticalPanel trees;
 255
 256     SingleSelectionModel<Folder> folderTreeSelectionModel;
 257     FolderTreeViewModel folderTreeViewModel;
 258     FolderTreeView folderTreeView;
 259
 260     SingleSelectionModel<Folder> mysharedTreeSelectionModel;
 261     MysharedTreeViewModel mysharedTreeViewModel;
 262     MysharedTreeView mysharedTreeView = null;
 263
 264     protected SingleSelectionModel<Folder> otherSharedTreeSelectionModel;
 265     OtherSharedTreeViewModel otherSharedTreeViewModel;
 266     OtherSharedTreeView otherSharedTreeView = null;
 267
 268     GroupTreeViewModel groupTreeViewModel;
 269     GroupTreeView groupTreeView;
 270
 271     TreeView selectedTree;
 272     protected AccountResource account;
 273
 274     Folder trash;
 275
 276     List<Composite> treeViews = new ArrayList<Composite>();
 277
 278     @SuppressWarnings("rawtypes")
 279     List<SingleSelectionModel> selectionModels = new ArrayList<SingleSelectionModel>();
 280
 281     public Button upload;
 282
 283     private HTML numOfFiles;
 284
 285     private Toolbar toolbar;
 286
 287     private FileUploadDialog fileUploadDialog = new FileUploadDialog(this);
 288
 289     UploadAlert uploadAlert;
 290
 291     Date lastModified;
 292
 293     @Override
 294     public void onModuleLoad() {
 295         if(parseUserCredentials()) {
 296             initialize();
 297         }
 298     }
 299
 300     private void initialize() {
 301         System.out.println("initialize(), userToken = " + userToken);
 302         lastModified = new Date(); //Initialize if-modified-since value with now.
 303         resources.pithosCss().ensureInjected();
 304         boolean bareContent = Window.Location.getParameter("noframe") != null;
 305         String contentWidth = bareContent ? "100%" : "75%";
 306
 307         VerticalPanel outer = new VerticalPanel();
 308         outer.setWidth("100%");
 309         if(!bareContent) {
 310             outer.addStyleName("pithos-outer");
 311         }
 312
 313         if(!bareContent) {
 314             topPanel = new TopPanel(this, Pithos.images);
 315             topPanel.setWidth("100%");
 316             outer.add(topPanel);
 317             outer.setCellHorizontalAlignment(topPanel, HasHorizontalAlignment.ALIGN_CENTER);
 318         }
 319
 320         messagePanel.setVisible(false);
 321         outer.add(messagePanel);
 322         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 323         outer.setCellVerticalAlignment(messagePanel, HasVerticalAlignment.ALIGN_MIDDLE);
 324
 325         HorizontalPanel header = new HorizontalPanel();
 326         header.addStyleName("pithos-header");
 327         header.setWidth(contentWidth);
 328         if(bareContent) {
 329             header.addStyleName("pithos-header-noframe");
 330         }
 331         upload = new Button("Upload", new ClickHandler() {
 332             @Override
 333             public void onClick(ClickEvent event) {
 334                 if(getSelection() != null) {
 335                     new UploadFileCommand(Pithos.this, null, getSelection()).execute();
 336                 }
 337             }
 338         });
 339         upload.addStyleName("pithos-uploadButton");
 340         header.add(upload);
 341         header.setCellHorizontalAlignment(upload, HasHorizontalAlignment.ALIGN_LEFT);
 342         header.setCellVerticalAlignment(upload, HasVerticalAlignment.ALIGN_MIDDLE);
 343
 344         toolbar = new Toolbar(this);
 345         header.add(toolbar);
 346         header.setCellHorizontalAlignment(toolbar, HasHorizontalAlignment.ALIGN_CENTER);
 347         header.setCellVerticalAlignment(toolbar, HasVerticalAlignment.ALIGN_MIDDLE);
 348
 349         HorizontalPanel folderStatistics = new HorizontalPanel();
 350         folderStatistics.addStyleName("pithos-folderStatistics");
 351         numOfFiles = new HTML();
 352         folderStatistics.add(numOfFiles);
 353         folderStatistics.setCellVerticalAlignment(numOfFiles, HasVerticalAlignment.ALIGN_MIDDLE);
 354         HTML numOfFilesLabel = new HTML("&nbsp;Files");
 355         folderStatistics.add(numOfFilesLabel);
 356         folderStatistics.setCellVerticalAlignment(numOfFilesLabel, HasVerticalAlignment.ALIGN_MIDDLE);
 357         header.add(folderStatistics);
 358         header.setCellHorizontalAlignment(folderStatistics, HasHorizontalAlignment.ALIGN_RIGHT);
 359         header.setCellVerticalAlignment(folderStatistics, HasVerticalAlignment.ALIGN_MIDDLE);
 360         header.setCellWidth(folderStatistics, "40px");
 361         outer.add(header);
 362         outer.setCellHorizontalAlignment(header, HasHorizontalAlignment.ALIGN_CENTER);
 363         // Inner contains the various lists
 364         inner.sinkEvents(Event.ONCONTEXTMENU);
 365         inner.setWidth("100%");
 366
 367         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 368         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 369             @Override
 370             public void onSelectionChange(SelectionChangeEvent event) {
 371                 if(folderTreeSelectionModel.getSelectedObject() != null) {
 372                     deselectOthers(folderTreeView, folderTreeSelectionModel);
 373                     applyPermissions(folderTreeSelectionModel.getSelectedObject());
 374                     Folder f = folderTreeSelectionModel.getSelectedObject();
 375                     updateFolder(f, true, new Command() {
 376
 377                         @Override
 378                         public void execute() {
 379                             updateStatistics();
 380                         }
 381                     }, true);
 382                     showRelevantToolbarButtons();
 383                 }
 384                 else {
 385                     if(getSelectedTree().equals(folderTreeView)) {
 386                         setSelectedTree(null);
 387                     }
 388                     if(getSelectedTree() == null) {
 389                         showRelevantToolbarButtons();
 390                     }
 391                 }
 392             }
 393         });
 394         selectionModels.add(folderTreeSelectionModel);
 395
 396         folderTreeViewModel = new FolderTreeViewModel(this, folderTreeSelectionModel);
 397         folderTreeView = new FolderTreeView(folderTreeViewModel);
 398         treeViews.add(folderTreeView);
 399
 400         fileList = new FileList(this, images);
 401         inner.add(fileList);
 402
 403         trees = new VerticalPanel();
 404         trees.setWidth("100%");
 405
 406         // Add the left and right panels to the split panel.
 407         splitPanel.setLeftWidget(trees);
 408         FlowPanel right = new FlowPanel();
 409         right.getElement().setId("rightPanel");
 410         right.add(inner);
 411         splitPanel.setRightWidget(right);
 412         splitPanel.setSplitPosition("219px");
 413         splitPanel.setSize("100%", "100%");
 414         splitPanel.addStyleName("pithos-splitPanel");
 415         splitPanel.setWidth(contentWidth);
 416         outer.add(splitPanel);
 417         outer.setCellHorizontalAlignment(splitPanel, HasHorizontalAlignment.ALIGN_CENTER);
 418
 419         if(!bareContent) {
 420             statusPanel = new StatusPanel();
 421             statusPanel.setWidth("100%");
 422             outer.add(statusPanel);
 423             outer.setCellHorizontalAlignment(statusPanel, HasHorizontalAlignment.ALIGN_CENTER);
 424         }
 425         else {
 426             splitPanel.addStyleName("pithos-splitPanel-noframe");
 427         }
 428
 429         // Hook the window resize event, so that we can adjust the UI.
 430         Window.addResizeHandler(this);
 431         // Clear out the window's built-in margin, because we want to take
 432         // advantage of the entire client area.
 433         Window.setMargin("0px");
 434         // Finally, add the outer panel to the RootPanel, so that it will be
 435         // displayed.
 436         RootPanel.get().add(outer);
 437         // Call the window resized handler to get the initial sizes setup. Doing
 438         // this in a deferred command causes it to occur after all widgets'
 439         // sizes have been computed by the browser.
 440         Scheduler.get().scheduleIncremental(new RepeatingCommand() {
 441
 442             @Override
 443             public boolean execute() {
 444                 if(!isCloudbarReady()) {
 445                     return true;
 446                 }
 447                 onWindowResized(Window.getClientHeight());
 448                 return false;
 449             }
 450         });
 451
 452         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 453             @Override
 454             public void execute() {
 455                 fetchAccount(new Command() {
 456
 457                     @Override
 458                     public void execute() {
 459                         if(!account.hasHomeContainer()) {
 460                             createHomeContainer(account, this);
 461                         }
 462                         else if(!account.hasTrashContainer()) {
 463                             createTrashContainer(this);
 464                         }
 465                         else {
 466                             for(Folder f : account.getContainers()) {
 467                                 if(f.getName().equals(Pithos.TRASH_CONTAINER)) {
 468                                     trash = f;
 469                                     break;
 470                                 }
 471                             }
 472                             trees.add(folderTreeView);
 473                             folderTreeViewModel.initialize(account, new Command() {
 474
 475                                 @Override
 476                                 public void execute() {
 477                                     createMySharedTree();
 478                                 }
 479                             });
 480
 481                             HorizontalPanel separator = new HorizontalPanel();
 482                             separator.addStyleName("pithos-statisticsSeparator");
 483                             separator.add(new HTML(""));
 484                             trees.add(separator);
 485
 486                             groupTreeViewModel = new GroupTreeViewModel(Pithos.this);
 487                             groupTreeView = new GroupTreeView(groupTreeViewModel);
 488                             treeViews.add(groupTreeView);
 489                             trees.add(groupTreeView);
 490                             folderTreeView.showStatistics(account);
 491                         }
 492                     }
 493                 });
 494             }
 495         });
 496     }
 497
 498     public void scheduleResfresh() {
 499         Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {
 500
 501             @Override
 502             public boolean execute() {
 503                 final Folder f = getSelection();
 504                 if(f == null) {
 505                     return true;
 506                 }
 507
 508                 HeadRequest<Folder> head = new HeadRequest<Folder>(Folder.class, getApiPath(), f.getOwner(), "/" + f.getContainer()) {
 509
 510                     @Override
 511                     public void onSuccess(Folder _result) {
 512                         lastModified = new Date();
 513                         if(getSelectedTree().equals(folderTreeView)) {
 514                             updateFolder(f, true, new Command() {
 515
 516                                 @Override
 517                                 public void execute() {
 518                                     scheduleResfresh();
 519                                 }
 520
 521                             }, false);
 522                         }
 523                         else if(getSelectedTree().equals(mysharedTreeView)) {
 524                             updateSharedFolder(f, true, new Command() {
 525
 526                                 @Override
 527                                 public void execute() {
 528                                     scheduleResfresh();
 529                                 }
 530                             });
 531                         }
 532                         else {
 533                             scheduleResfresh();
 534                         }
 535                     }
 536
 537                     @Override
 538                     public void onError(Throwable t) {
 539                         if(t instanceof RestException && ((RestException) t).getHttpStatusCode() == HttpStatus.SC_NOT_MODIFIED) {
 540                             scheduleResfresh();
 541                         }
 542                         else if(retries >= MAX_RETRIES) {
 543                             GWT.log("Error heading folder", t);
 544                             setError(t);
 545                             if(t instanceof RestException) {
 546                                 displayError("Error heading folder: " + ((RestException) t).getHttpStatusText());
 547                             }
 548                             else {
 549                                 displayError("System error heading folder: " + t.getMessage());
 550                             }
 551                         }
 552                         else {//retry
 553                             GWT.log("Retry " + retries);
 554                             Scheduler.get().scheduleDeferred(this);
 555                         }
 556                     }
 557
 558                     @Override
 559                     protected void onUnauthorized(Response response) {
 560                         if(retries >= MAX_RETRIES) {
 561                             sessionExpired();
 562                         }
 563                         else //retry
 564                         {
 565                             Scheduler.get().scheduleDeferred(this);
 566                         }
 567                     }
 568                 };
 569                 head.setHeader("X-Auth-Token", getUserToken());
 570                 head.setHeader("If-Modified-Since", DateTimeFormat.getFormat("EEE, dd MMM yyyy HH:mm:ss").format(lastModified, TimeZone.createTimeZone(0)) + " GMT");
 571                 Scheduler.get().scheduleDeferred(head);
 572
 573                 return false;
 574             }
 575         }, 3000);
 576     }
 577
 578     public void applyPermissions(Folder f) {
 579         if(f != null) {
 580             if(f.isInTrash()) {
 581                 upload.setEnabled(false);
 582                 disableUploadArea();
 583             }
 584             else {
 585                 Boolean[] perms = f.getPermissions().get(userID);
 586                 if(f.getOwner().equals(userID) || (perms != null && perms[1] != null && perms[1])) {
 587                     upload.setEnabled(true);
 588                     enableUploadArea();
 589                 }
 590                 else {
 591                     upload.setEnabled(false);
 592                     disableUploadArea();
 593                 }
 594             }
 595         }
 596         else {
 597             upload.setEnabled(false);
 598             disableUploadArea();
 599         }
 600     }
 601
 602     @SuppressWarnings({"rawtypes", "unchecked"})
 603     public void deselectOthers(TreeView _selectedTree, SingleSelectionModel model) {
 604         selectedTree = _selectedTree;
 605
 606         for(SingleSelectionModel s : selectionModels) {
 607             if(!s.equals(model) && s.getSelectedObject() != null) {
 608                 s.setSelected(s.getSelectedObject(), false);
 609             }
 610         }
 611     }
 612
 613     public void showFiles(final Folder f) {
 614         Set<File> files = f.getFiles();
 615         showFiles(files);
 616     }
 617
 618     public void showFiles(Set<File> files) {
 619         fileList.setFiles(new ArrayList<File>(files));
 620     }
 621
 622     /**
 623      * Parse and store the user credentials to the appropriate fields.
 624      */
 625     private boolean parseUserCredentials() {
 626         Configuration conf = (Configuration) GWT.create(Configuration.class);
 627         Dictionary otherProperties = Dictionary.getDictionary("otherProperties");
 628         System.out.println("otherProperties = " + otherProperties);
 629         String cookie = otherProperties.get("authCookie");
 630         System.out.println("cookie = " + cookie);
 631         Cookies.setCookie(cookie, "868fbb51-94a4-477d-8da3-dadad080c861|HlPjywM5FGAncsoNDzPZ2Q==");
 632 //        Cookies.setCookie(cookie, "868fbb51-94a4-477d-8da3-dadad080c861%7CHlPjywM5FGAncsoNDzPZ2Q%3D%3D");
 633         for(String name: Cookies.getCookieNames()) {
 634             System.out.println("cookie name: " + name);
 635         }
 636         String auth = Cookies.getCookie(cookie);
 637         System.out.println("auth = " + auth);
 638         if(auth == null) {
 639             authenticateUser();
 640             return false;
 641         }
 642         if(auth.startsWith("\"")) {
 643             auth = auth.substring(1);
 644         }
 645         if(auth.endsWith("\"")) {
 646             auth = auth.substring(0, auth.length() - 1);
 647         }
 648         String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 649         for(String authPart: authSplit) {
 650             System.out.println("authPart: " + authPart);
 651         }
 652         if(authSplit.length != 2) {
 653             authenticateUser();
 654             return false;
 655         }
 656         userID = authSplit[0];
 657         userToken = authSplit[1];
 658         System.out.println("userID = " + userID);
 659         System.out.println("userToken = " + userToken);
 660
 661         String gotoUrl = Window.Location.getParameter("goto");
 662         if(gotoUrl != null && gotoUrl.length() > 0) {
 663             Window.Location.assign(gotoUrl);
 664             return false;
 665         }
 666         System.out.println("Returning true");
 667         return true;
 668     }
 669
 670     /**
 671      * Redirect the user to the login page for authentication.
 672      */
 673     protected void authenticateUser() {
 674         Dictionary otherProperties = Dictionary.getDictionary("otherProperties");
 675         Window.Location.assign(otherProperties.get("loginUrl") + Window.Location.getHref());
 676     }
 677
 678     public void fetchAccount(final Command callback) {
 679         System.out.println("fetchAccount(), userID = " + this.userID + ", userToken = " + this.userToken);
 680         String path = "?format=json";
 681
 682         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, getApiPath(), userID, path) {
 683             @Override
 684             public void onSuccess(AccountResource _result) {
 685                 System.out.println("fetchAccount(), userID = " + userID + ", userToken = " + userToken + " onSuccess()");
 686                 account = _result;
 687                 if(callback != null) {
 688                     callback.execute();
 689                 }
 690                 // Initialize the user catalog
 691                 new GetUserCatalogs(Pithos.this, Pithos.this.getUserID()) {
 692                     @Override
 693                     public void onSuccess(Request request, Response response, JSONObject result, UserCatalogs usersCatalog) {
 694                         super.onSuccess(request, response, result, usersCatalog);
 695                         Pithos.this.userCatalogs.updateFrom(usersCatalog);
 696                     }
 697                 }.scheduleDeferred();
 698             }
 699
 700             @Override
 701             public void onError(Throwable t) {
 702                 System.out.println("fetchAccount(), userID = " + userID + ", userToken = " + userToken + " onError() " + t.getClass().getName() + ": " + t.getMessage());
 703                 GWT.log("Error getting account", t);
 704                 setError(t);
 705                 if(t instanceof RestException) {
 706                     System.out.println("fetchAccount(), userID = " + userID + ", userToken = " + userToken + " Error getting account: " + ((RestException) t).getHttpStatusText());
 707                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 708                 }
 709                 else {
 710                     System.out.println("fetchAccount(), userID = " + userID + ", userToken = " + userToken + "System error fetching user data: " + t.getMessage());
 711                     displayError("System error fetching user data: " + t.getMessage());
 712                 }
 713             }
 714
 715             @Override
 716             protected void onUnauthorized(Response response) {
 717                 System.out.println("fetchAccount(), userID = " + userID + ", userToken = " + userToken + " onUnauthorized()");
 718                 sessionExpired();
 719             }
 720         };
 721         getAccount.setHeader("X-Auth-Token", userToken);
 722         Scheduler.get().scheduleDeferred(getAccount);
 723     }
 724
 725     public void updateStatistics() {
 726         HeadRequest<AccountResource> headAccount = new HeadRequest<AccountResource>(AccountResource.class, getApiPath(), userID, "", account) {
 727
 728             @Override
 729             public void onSuccess(AccountResource _result) {
 730                 folderTreeView.showStatistics(account);
 731             }
 732
 733             @Override
 734             public void onError(Throwable t) {
 735                 GWT.log("Error getting account", t);
 736                 setError(t);
 737                 if(t instanceof RestException) {
 738                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 739                 }
 740                 else {
 741                     displayError("System error fetching user data: " + t.getMessage());
 742                 }
 743             }
 744
 745             @Override
 746             protected void onUnauthorized(Response response) {
 747                 sessionExpired();
 748             }
 749         };
 750         headAccount.setHeader("X-Auth-Token", userToken);
 751         Scheduler.get().scheduleDeferred(headAccount);
 752     }
 753
 754     protected void createHomeContainer(final AccountResource _account, final Command callback) {
 755         String path = "/" + Pithos.HOME_CONTAINER;
 756         PutRequest createPithos = new PutRequest(getApiPath(), getUserID(), path) {
 757             @Override
 758             public void onSuccess(Resource result) {
 759                 if(!_account.hasTrashContainer()) {
 760                     createTrashContainer(callback);
 761                 }
 762                 else {
 763                     fetchAccount(callback);
 764                 }
 765             }
 766
 767             @Override
 768             public void onError(Throwable t) {
 769                 GWT.log("Error creating pithos", t);
 770                 setError(t);
 771                 if(t instanceof RestException) {
 772                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 773                 }
 774                 else {
 775                     displayError("System error Error creating pithos: " + t.getMessage());
 776                 }
 777             }
 778
 779             @Override
 780             protected void onUnauthorized(Response response) {
 781                 sessionExpired();
 782             }
 783         };
 784         createPithos.setHeader("X-Auth-Token", getUserToken());
 785         Scheduler.get().scheduleDeferred(createPithos);
 786     }
 787
 788     protected void createTrashContainer(final Command callback) {
 789         String path = "/" + Pithos.TRASH_CONTAINER;
 790         PutRequest createPithos = new PutRequest(getApiPath(), getUserID(), path) {
 791             @Override
 792             public void onSuccess(Resource result) {
 793                 fetchAccount(callback);
 794             }
 795
 796             @Override
 797             public void onError(Throwable t) {
 798                 GWT.log("Error creating pithos", t);
 799                 setError(t);
 800                 if(t instanceof RestException) {
 801                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 802                 }
 803                 else {
 804                     displayError("System error Error creating pithos: " + t.getMessage());
 805                 }
 806             }
 807
 808             @Override
 809             protected void onUnauthorized(Response response) {
 810                 sessionExpired();
 811             }
 812         };
 813         createPithos.setHeader("X-Auth-Token", getUserToken());
 814         Scheduler.get().scheduleDeferred(createPithos);
 815     }
 816
 817     /**
 818      * Creates an HTML fragment that places an image & caption together, for use
 819      * in a group header.
 820      *
 821      * @param imageProto an image prototype for an image
 822      * @param caption    the group caption
 823      * @return the header HTML fragment
 824      */
 825     private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 826         String captionHTML = "<table class='caption' cellpadding='0' "
 827             + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 828             + "</td><td id =" + caption + " class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 829             + caption + "</b></td></tr></table>";
 830         return captionHTML;
 831     }
 832
 833     protected void onWindowResized(int height) {
 834         // Adjust the split panel to take up the available room in the window.
 835         int newHeight = height - splitPanel.getAbsoluteTop() - 153;
 836         if(newHeight < 1) {
 837             newHeight = 1;
 838         }
 839         splitPanel.setHeight("" + newHeight);
 840         inner.setHeight("" + newHeight);
 841     }
 842
 843     native boolean isCloudbarReady()/*-{
 844       if ($wnd.$("div.cloudbar") && $wnd.$("div.cloudbar").height() > 0)
 845         return true;
 846       return false;
 847     }-*/;
 848
 849     @Override
 850     public void onResize(ResizeEvent event) {
 851         int height = event.getHeight();
 852         onWindowResized(height);
 853     }
 854
 855     /**
 856      * Display an error message.
 857      *
 858      * @param msg the message to display
 859      */
 860     public void displayError(String msg) {
 861         messagePanel.displayError(msg);
 862         onWindowResized(Window.getClientHeight());
 863     }
 864
 865     /**
 866      * Display a warning message.
 867      *
 868      * @param msg the message to display
 869      */
 870     public void displayWarning(String msg) {
 871         messagePanel.displayWarning(msg);
 872         onWindowResized(Window.getClientHeight());
 873     }
 874
 875     /**
 876      * Display an informational message.
 877      *
 878      * @param msg the message to display
 879      */
 880     public void displayInformation(String msg) {
 881         messagePanel.displayInformation(msg);
 882         onWindowResized(Window.getClientHeight());
 883     }
 884
 885     /**
 886      * Retrieve the fileList.
 887      *
 888      * @return the fileList
 889      */
 890     public FileList getFileList() {
 891         return fileList;
 892     }
 893
 894     /**
 895      * Retrieve the topPanel.
 896      *
 897      * @return the topPanel
 898      */
 899     TopPanel getTopPanel() {
 900         return topPanel;
 901     }
 902
 903     /**
 904      * Retrieve the clipboard.
 905      *
 906      * @return the clipboard
 907      */
 908     public Clipboard getClipboard() {
 909         return clipboard;
 910     }
 911
 912     public StatusPanel getStatusPanel() {
 913         return statusPanel;
 914     }
 915
 916     public String getUserToken() {
 917         return userToken;
 918     }
 919
 920     public static native void preventIESelection() /*-{
 921       $doc.body.onselectstart = function () {
 922         return false;
 923       };
 924     }-*/;
 925
 926     public static native void enableIESelection() /*-{
 927       if ($doc.body.onselectstart != null)
 928         $doc.body.onselectstart = null;
 929     }-*/;
 930
 931     /**
 932      * @return the absolute path of the API root URL
 933      */
 934     public String getApiPath() {
 935         Configuration conf = (Configuration) GWT.create(Configuration.class);
 936         return conf.apiPath();
 937     }
 938
 939     /**
 940      * History support for folder navigation
 941      * adds a new browser history entry
 942      *
 943      * @param key
 944      */
 945     public void updateHistory(String key) {
 946 //              Replace any whitespace of the initial string to "+"
 947 //              String result = key.replaceAll("\\s","+");
 948 //              Add a new browser history entry.
 949 //              History.newItem(result);
 950         History.newItem(key);
 951     }
 952
 953     public void deleteFolder(final Folder folder, final Command callback) {
 954         final PleaseWaitPopup pwp = new PleaseWaitPopup();
 955         pwp.center();
 956         String path = "/" + folder.getContainer() + "/" + folder.getPrefix() + "?delimiter=/" + "&t=" + System.currentTimeMillis();
 957         DeleteRequest deleteFolder = new DeleteRequest(getApiPath(), folder.getOwner(), path) {
 958
 959             @Override
 960             protected void onUnauthorized(Response response) {
 961                 pwp.hide();
 962                 sessionExpired();
 963             }
 964
 965             @Override
 966             public void onSuccess(Resource result) {
 967                 updateFolder(folder.getParent(), true, new Command() {
 968
 969                     @Override
 970                     public void execute() {
 971                         folderTreeSelectionModel.setSelected(folder.getParent(), true);
 972                         updateStatistics();
 973                         if(callback != null) {
 974                             callback.execute();
 975                         }
 976                         pwp.hide();
 977                     }
 978                 }, true);
 979             }
 980
 981             @Override
 982             public void onError(Throwable t) {
 983                 GWT.log("", t);
 984                 setError(t);
 985                 if(t instanceof RestException) {
 986                     if(((RestException) t).getHttpStatusCode() != Response.SC_NOT_FOUND) {
 987                         displayError("Unable to delete folder: " + ((RestException) t).getHttpStatusText());
 988                     }
 989                     else {
 990                         onSuccess(null);
 991                     }
 992                 }
 993                 else {
 994                     displayError("System error unable to delete folder: " + t.getMessage());
 995                 }
 996                 pwp.hide();
 997             }
 998         };
 999         deleteFolder.setHeader("X-Auth-Token", getUserToken());
1000         Scheduler.get().scheduleDeferred(deleteFolder);
1001     }
1002
1003     public FolderTreeView getFolderTreeView() {
1004         return folderTreeView;
1005     }
1006
1007     public void copyFiles(final Iterator<File> iter, final String targetUsername, final String targetUri, final Command callback) {
1008         if(iter.hasNext()) {
1009             File file = iter.next();
1010             String path = targetUri + "/" + file.getName();
1011             PutRequest copyFile = new PutRequest(getApiPath(), targetUsername, path) {
1012                 @Override
1013                 public void onSuccess(Resource result) {
1014                     copyFiles(iter, targetUsername, targetUri, callback);
1015                 }
1016
1017                 @Override
1018                 public void onError(Throwable t) {
1019                     GWT.log("", t);
1020                     setError(t);
1021                     if(t instanceof RestException) {
1022                         displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
1023                     }
1024                     else {
1025                         displayError("System error unable to copy file: " + t.getMessage());
1026                     }
1027                 }
1028
1029                 @Override
1030                 protected void onUnauthorized(Response response) {
1031                     sessionExpired();
1032                 }
1033             };
1034             copyFile.setHeader("X-Auth-Token", getUserToken());
1035             copyFile.setHeader("X-Copy-From", URL.encodePathSegment(file.getUri()));
1036             if(!file.getOwnerID().equals(targetUsername)) {
1037                 copyFile.setHeader("X-Source-Account", URL.encodePathSegment(file.getOwnerID()));
1038             }
1039             copyFile.setHeader("Content-Type", file.getContentType());
1040             Scheduler.get().scheduleDeferred(copyFile);
1041         }
1042         else if(callback != null) {
1043             callback.execute();
1044         }
1045     }
1046
1047     public void copyFolder(final Folder f, final String targetUsername, final String targetUri, boolean move, final Command callback) {
1048         String path = targetUri + "?delimiter=/";
1049         PutRequest copyFolder = new PutRequest(getApiPath(), targetUsername, path) {
1050             @Override
1051             public void onSuccess(Resource result) {
1052                 if(callback != null) {
1053                     callback.execute();
1054                 }
1055             }
1056
1057             @Override
1058             public void onError(Throwable t) {
1059                 GWT.log("", t);
1060                 setError(t);
1061                 if(t instanceof RestException) {
1062                     displayError("Unable to copy folder: " + ((RestException) t).getHttpStatusText());
1063                 }
1064                 else {
1065                     displayError("System error copying folder: " + t.getMessage());
1066                 }
1067             }
1068
1069             @Override
1070             protected void onUnauthorized(Response response) {
1071                 sessionExpired();
1072             }
1073         };
1074         copyFolder.setHeader("X-Auth-Token", getUserToken());
1075         copyFolder.setHeader("Accept", "*/*");
1076         copyFolder.setHeader("Content-Length", "0");
1077         copyFolder.setHeader("Content-Type", "application/directory");
1078         if(!f.getOwner().equals(targetUsername)) {
1079             copyFolder.setHeader("X-Source-Account", f.getOwner());
1080         }
1081         if(move) {
1082             copyFolder.setHeader("X-Move-From", URL.encodePathSegment(f.getUri()));
1083         }
1084         else {
1085             copyFolder.setHeader("X-Copy-From", URL.encodePathSegment(f.getUri()));
1086         }
1087         Scheduler.get().scheduleDeferred(copyFolder);
1088     }
1089
1090     public void addSelectionModel(@SuppressWarnings("rawtypes") SingleSelectionModel model) {
1091         selectionModels.add(model);
1092     }
1093
1094     public OtherSharedTreeView getOtherSharedTreeView() {
1095         return otherSharedTreeView;
1096     }
1097
1098     public void updateTrash(boolean showFiles, Command callback) {
1099         updateFolder(trash, showFiles, callback, true);
1100     }
1101
1102     public void updateGroupsNode() {
1103         groupTreeView.updateGroupNode(null);
1104     }
1105
1106     public Group addGroup(String groupname) {
1107         Group newGroup = new Group(groupname);
1108         account.addGroup(newGroup);
1109         groupTreeView.updateGroupNode(null);
1110         return newGroup;
1111     }
1112
1113     public void removeGroup(Group group) {
1114         account.removeGroup(group);
1115         updateGroupsNode();
1116     }
1117
1118     public TreeView getSelectedTree() {
1119         return selectedTree;
1120     }
1121
1122     public void setSelectedTree(TreeView selected) {
1123         selectedTree = selected;
1124     }
1125
1126     public Folder getSelection() {
1127         if(selectedTree != null) {
1128             return selectedTree.getSelection();
1129         }
1130         return null;
1131     }
1132
1133     public void showFolderStatistics(int folderFileCount) {
1134         numOfFiles.setHTML(String.valueOf(folderFileCount));
1135     }
1136
1137     public GroupTreeView getGroupTreeView() {
1138         return groupTreeView;
1139     }
1140
1141     public void sessionExpired() {
1142         new SessionExpiredDialog(this).center();
1143     }
1144
1145     public void updateRootFolder(Command callback) {
1146         updateFolder(account.getPithos(), false, callback, true);
1147     }
1148
1149     void createMySharedTree() {
1150         mysharedTreeSelectionModel = new SingleSelectionModel<Folder>();
1151         mysharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
1152             @Override
1153             public void onSelectionChange(SelectionChangeEvent event) {
1154                 if(mysharedTreeSelectionModel.getSelectedObject() != null) {
1155                     deselectOthers(mysharedTreeView, mysharedTreeSelectionModel);
1156                     upload.setEnabled(false);
1157                     disableUploadArea();
1158                     updateSharedFolder(mysharedTreeSelectionModel.getSelectedObject(), true);
1159                     showRelevantToolbarButtons();
1160                 }
1161                 else {
1162                     if(getSelectedTree().equals(mysharedTreeView)) {
1163                         setSelectedTree(null);
1164                     }
1165                     if(getSelectedTree() == null) {
1166                         showRelevantToolbarButtons();
1167                     }
1168                 }
1169             }
1170         });
1171         selectionModels.add(mysharedTreeSelectionModel);
1172         mysharedTreeViewModel = new MysharedTreeViewModel(Pithos.this, mysharedTreeSelectionModel);
1173         mysharedTreeViewModel.initialize(new Command() {
1174
1175             @Override
1176             public void execute() {
1177                 mysharedTreeView = new MysharedTreeView(mysharedTreeViewModel);
1178                 trees.insert(mysharedTreeView, 2);
1179                 treeViews.add(mysharedTreeView);
1180                 createOtherSharedTree();
1181             }
1182         });
1183     }
1184
1185     void createOtherSharedTree() {
1186         otherSharedTreeSelectionModel = new SingleSelectionModel<Folder>();
1187         otherSharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
1188             @Override
1189             public void onSelectionChange(SelectionChangeEvent event) {
1190                 if(otherSharedTreeSelectionModel.getSelectedObject() != null) {
1191                     deselectOthers(otherSharedTreeView, otherSharedTreeSelectionModel);
1192                     applyPermissions(otherSharedTreeSelectionModel.getSelectedObject());
1193                     updateOtherSharedFolder(otherSharedTreeSelectionModel.getSelectedObject(), true, null);
1194                     showRelevantToolbarButtons();
1195                 }
1196                 else {
1197                     if(getSelectedTree().equals(otherSharedTreeView)) {
1198                         setSelectedTree(null);
1199                     }
1200                     if(getSelectedTree() == null) {
1201                         showRelevantToolbarButtons();
1202                     }
1203                 }
1204             }
1205         });
1206         selectionModels.add(otherSharedTreeSelectionModel);
1207         otherSharedTreeViewModel = new OtherSharedTreeViewModel(Pithos.this, otherSharedTreeSelectionModel);
1208         otherSharedTreeViewModel.initialize(new Command() {
1209
1210             @Override
1211             public void execute() {
1212                 otherSharedTreeView = new OtherSharedTreeView(otherSharedTreeViewModel);
1213                 trees.insert(otherSharedTreeView, 1);
1214                 treeViews.add(otherSharedTreeView);
1215                 scheduleResfresh();
1216             }
1217         });
1218     }
1219
1220     public native void log1(String message)/*-{
1221       $wnd.console.log(message);
1222     }-*/;
1223
1224     public String getErrorData() {
1225         if(error != null) {
1226             return error.toString();
1227         }
1228         return "";
1229     }
1230
1231     public void setError(Throwable t) {
1232         error = t;
1233     }
1234
1235     public void showRelevantToolbarButtons() {
1236         toolbar.showRelevantButtons();
1237     }
1238
1239     public FileUploadDialog getFileUploadDialog() {
1240         if(fileUploadDialog == null) {
1241             fileUploadDialog = new FileUploadDialog(this);
1242         }
1243         return fileUploadDialog;
1244     }
1245
1246     public void hideUploadIndicator() {
1247         upload.removeStyleName("pithos-uploadButton-loading");
1248         upload.setTitle("");
1249     }
1250
1251     public void showUploadIndicator() {
1252         upload.addStyleName("pithos-uploadButton-loading");
1253         upload.setTitle("Upload in progress. Click for details.");
1254     }
1255
1256     public void scheduleFolderHeadCommand(final Folder folder, final Command callback) {
1257         if(folder == null) {
1258             if(callback != null) {
1259                 callback.execute();
1260             }
1261         }
1262         else {
1263             HeadRequest<Folder> headFolder = new HeadRequest<Folder>(Folder.class, getApiPath(), folder.getOwner(), folder.getUri(), folder) {
1264
1265                 @Override
1266                 public void onSuccess(Folder _result) {
1267                     if(callback != null) {
1268                         callback.execute();
1269                     }
1270                 }
1271
1272                 @Override
1273                 public void onError(Throwable t) {
1274                     if(t instanceof RestException) {
1275                         if(((RestException) t).getHttpStatusCode() == Response.SC_NOT_FOUND) {
1276                             final String path = folder.getUri();
1277                             PutRequest newFolder = new PutRequest(getApiPath(), folder.getOwner(), path) {
1278                                 @Override
1279                                 public void onSuccess(Resource _result) {
1280                                     scheduleFolderHeadCommand(folder, callback);
1281                                 }
1282
1283                                 @Override
1284                                 public void onError(Throwable _t) {
1285                                     GWT.log("", _t);
1286                                     setError(_t);
1287                                     if(_t instanceof RestException) {
1288                                         displayError("Unable to create folder: " + ((RestException) _t).getHttpStatusText());
1289                                     }
1290                                     else {
1291                                         displayError("System error creating folder: " + _t.getMessage());
1292                                     }
1293                                 }
1294
1295                                 @Override
1296                                 protected void onUnauthorized(Response response) {
1297                                     sessionExpired();
1298                                 }
1299                             };
1300                             newFolder.setHeader("X-Auth-Token", getUserToken());
1301                             newFolder.setHeader("Content-Type", "application/folder");
1302                             newFolder.setHeader("Accept", "*/*");
1303                             newFolder.setHeader("Content-Length", "0");
1304                             Scheduler.get().scheduleDeferred(newFolder);
1305                         }
1306                         else if(((RestException) t).getHttpStatusCode() == Response.SC_FORBIDDEN) {
1307                             onSuccess(folder);
1308                         }
1309                         else {
1310                             displayError("Error heading folder: " + ((RestException) t).getHttpStatusText());
1311                         }
1312                     }
1313                     else {
1314                         displayError("System error heading folder: " + t.getMessage());
1315                     }
1316
1317                     GWT.log("Error heading folder", t);
1318                     setError(t);
1319                 }
1320
1321                 @Override
1322                 protected void onUnauthorized(Response response) {
1323                     sessionExpired();
1324                 }
1325             };
1326             headFolder.setHeader("X-Auth-Token", getUserToken());
1327             Scheduler.get().scheduleDeferred(headFolder);
1328         }
1329     }
1330
1331     public void scheduleFileHeadCommand(File f, final Command callback) {
1332         HeadRequest<File> headFile = new HeadRequest<File>(File.class, getApiPath(), f.getOwnerID(), f.getUri(), f) {
1333
1334             @Override
1335             public void onSuccess(File _result) {
1336                 if(callback != null) {
1337                     callback.execute();
1338                 }
1339             }
1340
1341             @Override
1342             public void onError(Throwable t) {
1343                 GWT.log("Error heading file", t);
1344                 setError(t);
1345                 if(t instanceof RestException) {
1346                     displayError("Error heading file: " + ((RestException) t).getHttpStatusText());
1347                 }
1348                 else {
1349                     displayError("System error heading file: " + t.getMessage());
1350                 }
1351             }
1352
1353             @Override
1354             protected void onUnauthorized(Response response) {
1355                 sessionExpired();
1356             }
1357         };
1358         headFile.setHeader("X-Auth-Token", getUserToken());
1359         Scheduler.get().scheduleDeferred(headFile);
1360     }
1361
1362     public boolean isMySharedSelected() {
1363         return getSelectedTree().equals(getMySharedTreeView());
1364     }
1365
1366     private Folder getUploadFolder() {
1367         if(folderTreeView.equals(getSelectedTree()) || otherSharedTreeView.equals(getSelectedTree())) {
1368             return getSelection();
1369         }
1370         return null;
1371     }
1372
1373     private void updateUploadFolder() {
1374         updateUploadFolder(null);
1375     }
1376
1377     private void updateUploadFolder(final JsArrayString urls) {
1378         if(folderTreeView.equals(getSelectedTree()) || otherSharedTreeView.equals(getSelectedTree())) {
1379             Folder f = getSelection();
1380             if(getSelectedTree().equals(getFolderTreeView())) {
1381                 updateFolder(f, true, new Command() {
1382
1383                     @Override
1384                     public void execute() {
1385                         updateStatistics();
1386                         if(urls != null) {
1387                             selectUploadedFiles(urls);
1388                         }
1389                     }
1390                 }, false);
1391             }
1392             else {
1393                 updateOtherSharedFolder(f, true, null);
1394             }
1395         }
1396     }
1397
1398     public native void disableUploadArea() /*-{
1399       var uploader = $wnd.$("#uploader").pluploadQueue();
1400       var dropElm = $wnd.document.getElementById('rightPanel');
1401       $wnd.plupload.removeAllEvents(dropElm, uploader.id);
1402     }-*/;
1403
1404     public native void enableUploadArea() /*-{
1405       var uploader = $wnd.$("#uploader").pluploadQueue();
1406       var dropElm = $wnd.document.getElementById('rightPanel');
1407       $wnd.plupload.removeAllEvents(dropElm, uploader.id);
1408       if (uploader.runtime == 'html5') {
1409         uploader.settings.drop_element = 'rightPanel';
1410         uploader.trigger('PostInit');
1411       }
1412     }-*/;
1413
1414     public void showUploadAlert(int nOfFiles) {
1415         if(uploadAlert == null) {
1416             uploadAlert = new UploadAlert(this, nOfFiles);
1417         }
1418         if(!uploadAlert.isShowing()) {
1419             uploadAlert.setPopupPositionAndShow(new PopupPanel.PositionCallback() {
1420
1421                 @Override
1422                 public void setPosition(int offsetWidth, int offsetHeight) {
1423                     uploadAlert.setPopupPosition((Window.getClientWidth() - offsetWidth) / 2, statusPanel.getAbsoluteTop() - offsetHeight);
1424                 }
1425             });
1426         }
1427         uploadAlert.setNumOfFiles(nOfFiles);
1428     }
1429
1430     public void hideUploadAlert() {
1431         if(uploadAlert != null && uploadAlert.isShowing()) {
1432             uploadAlert.hide();
1433         }
1434     }
1435
1436     public void selectUploadedFiles(JsArrayString urls) {
1437         List<String> selectedUrls = new ArrayList<String>();
1438         for(int i = 0; i < urls.length(); i++) {
1439             selectedUrls.add(urls.get(i));
1440         }
1441         fileList.selectByUrl(selectedUrls);
1442     }
1443
1444     public void emptyContainer(final Folder container) {
1445         String path = "/" + container.getName() + "?delimiter=/";
1446         DeleteRequest delete = new DeleteRequest(getApiPath(), getUserID(), path) {
1447
1448             @Override
1449             protected void onUnauthorized(Response response) {
1450                 sessionExpired();
1451             }
1452
1453             @Override
1454             public void onSuccess(Resource result) {
1455                 updateFolder(container, true, null, true);
1456             }
1457
1458             @Override
1459             public void onError(Throwable t) {
1460                 GWT.log("Error deleting trash", t);
1461                 setError(t);
1462                 if(t instanceof RestException) {
1463                     displayError("Error deleting trash: " + ((RestException) t).getHttpStatusText());
1464                 }
1465                 else {
1466                     displayError("System error deleting trash: " + t.getMessage());
1467                 }
1468             }
1469         };
1470         delete.setHeader("X-Auth-Token", getUserToken());
1471         Scheduler.get().scheduleDeferred(delete);
1472     }
1473 }