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

   1 /*
   2  * Copyright 2011-2013 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.dom.client.*;
  44 import com.google.gwt.dom.client.Element;
  45 import com.google.gwt.event.dom.client.ClickEvent;
  46 import com.google.gwt.event.dom.client.ClickHandler;
  47 import com.google.gwt.event.logical.shared.ResizeEvent;
  48 import com.google.gwt.event.logical.shared.ResizeHandler;
  49 import com.google.gwt.http.client.Response;
  50 import com.google.gwt.http.client.URL;
  51 import com.google.gwt.i18n.client.DateTimeFormat;
  52 import com.google.gwt.i18n.client.Dictionary;
  53 import com.google.gwt.i18n.client.TimeZone;
  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.UpdateUserCatalogs;
  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     private static final boolean IsLOGEnabled = false;
  84     public static final boolean IsDetailedHTTPLOGEnabled = true;
  85     public static final boolean IsFullResponseBodyLOGEnabled = true;
  86     private static final boolean EnableScheduledRefresh = true; // Make false only for debugging purposes.
  87
  88     public static final Set<String> HTTPHeadersToIgnoreInLOG = new HashSet<String>();
  89     static {
  90         HTTPHeadersToIgnoreInLOG.add(Const.HTTP_HEADER_CONNECTION);
  91         HTTPHeadersToIgnoreInLOG.add(Const.HTTP_HEADER_DATE);
  92         HTTPHeadersToIgnoreInLOG.add(Const.HTTP_HEADER_KEEP_ALIVE);
  93         HTTPHeadersToIgnoreInLOG.add(Const.HTTP_HEADER_SERVER);
  94         HTTPHeadersToIgnoreInLOG.add(Const.HTTP_HEADER_VARY);
  95         HTTPHeadersToIgnoreInLOG.add(Const.IF_MODIFIED_SINCE);
  96     }
  97
  98     public static final Configuration config = GWT.create(Configuration.class);
  99     public static final String CONFIG_API_PATH = config.apiPath();
 100     static {
 101         LOG("CONFIG_API_PATH = ", CONFIG_API_PATH);
 102     }
 103
 104     public static final Dictionary otherProperties = Dictionary.getDictionary(Const.OTHER_PROPERTIES);
 105     public static String getFromOtherPropertiesOrDefault(String key, String def) {
 106         try {
 107             final String value = otherProperties.get(key);
 108             return value == null ? def : value;
 109         }
 110         catch(Exception e) {
 111             return def;
 112         }
 113     }
 114
 115     public static String getFromOtherPropertiesOrNull(String key) {
 116         return getFromOtherPropertiesOrDefault(key, null);
 117     }
 118
 119     private static final boolean SHOW_COPYRIGHT;
 120     static {
 121         final String valueStr = getFromOtherPropertiesOrDefault("SHOW_COPYRIGHT", "true").trim().toLowerCase();
 122         SHOW_COPYRIGHT = "true".equals(valueStr);
 123         LOG("SHOW_COPYRIGHT = '", valueStr, "' ==> ", SHOW_COPYRIGHT);
 124     }
 125
 126     public static final String OTHERPROPS_STORAGE_API_URL = getFromOtherPropertiesOrNull("STORAGE_API_URL");
 127     public static final String OTHERPROPS_USER_CATALOGS_API_URL = getFromOtherPropertiesOrNull("USER_CATALOGS_API_URL");
 128     static {
 129         LOG("STORAGE_API_URL = ", OTHERPROPS_STORAGE_API_URL);
 130         LOG("USER_CATALOGS_API_URL = ", OTHERPROPS_USER_CATALOGS_API_URL);
 131     }
 132
 133     public static final String STORAGE_API_URL;
 134     static {
 135         if(OTHERPROPS_STORAGE_API_URL != null) {
 136             STORAGE_API_URL = OTHERPROPS_STORAGE_API_URL;
 137         }
 138         else if(CONFIG_API_PATH != null) {
 139             STORAGE_API_URL = CONFIG_API_PATH;
 140         }
 141         else {
 142             throw new RuntimeException("Unknown STORAGE_API_URL");
 143         }
 144
 145         LOG("Computed STORAGE_API_URL = ", STORAGE_API_URL);
 146     }
 147
 148     public static final String STORAGE_VIEW_URL;
 149     static {
 150         final String viewURL = getFromOtherPropertiesOrNull("STORAGE_VIEW_URL");
 151         if(viewURL != null) {
 152             STORAGE_VIEW_URL = viewURL;
 153         }
 154         else {
 155             STORAGE_VIEW_URL = STORAGE_API_URL;
 156         }
 157
 158         LOG("Computed STORAGE_VIEW_URL = ", STORAGE_VIEW_URL);
 159     }
 160
 161     public static final String PUBLIC_LINK_VIEW_PREFIX = getFromOtherPropertiesOrDefault("PUBLIC_LINK_VIEW_PREFIX", "");
 162
 163     public static final String USER_CATALOGS_API_URL;
 164     static {
 165         if(OTHERPROPS_USER_CATALOGS_API_URL != null) {
 166             USER_CATALOGS_API_URL = OTHERPROPS_USER_CATALOGS_API_URL;
 167         }
 168         else if(OTHERPROPS_STORAGE_API_URL != null) {
 169             throw new RuntimeException("STORAGE_API_URL is defined but USER_CATALOGS_API_URL is not");
 170         }
 171         else {
 172             // https://server.com/v1/ --> https://server.com
 173             String url = CONFIG_API_PATH;
 174             url = Helpers.stripTrailing(url, "/");
 175             url = Helpers.upToIncludingLastPart(url, "/");
 176             url = Helpers.stripTrailing(url, "/");
 177             url = url + "/user_catalogs";
 178
 179             USER_CATALOGS_API_URL = url;
 180
 181             LOG("Computed USER_CATALOGS_API_URL = ", USER_CATALOGS_API_URL);
 182         }
 183     }
 184
 185     public static String FAVICON_URL = getFromOtherPropertiesOrNull("FAVICON_URL");
 186
 187     public interface Style extends CssResource {
 188         String commandAnchor();
 189
 190         String statistics();
 191
 192         @ClassName("gwt-HTML")
 193         String html();
 194
 195         String uploadAlert();
 196
 197         String uploadAlertLink();
 198
 199         String uploadAlertProgress();
 200
 201         String uploadAlertPercent();
 202
 203         String uploadAlertClose();
 204     }
 205
 206     public interface Resources extends ClientBundle {
 207         @Source("Pithos.css")
 208         Style pithosCss();
 209
 210         @Source("gr/grnet/pithos/resources/close-popup.png")
 211         ImageResource closePopup();
 212     }
 213
 214     public static Resources resources = GWT.create(Resources.class);
 215
 216     /**
 217      * Instantiate an application-level image bundle. This object will provide
 218      * programmatic access to all the images needed by widgets.
 219      */
 220     static Images images = (Images) GWT.create(Images.class);
 221
 222     public String getUserID() {
 223         return userID;
 224     }
 225
 226     public UserCatalogs getUserCatalogs() {
 227         return userCatalogs;
 228     }
 229
 230     public String getCurrentUserDisplayNameOrID() {
 231         final String displayName = userCatalogs.getDisplayName(getUserID());
 232         return displayName == null ? getUserID() : displayName;
 233     }
 234
 235     public boolean hasDisplayNameForUserID(String userID) {
 236         return userCatalogs.getDisplayName(userID) != null;
 237     }
 238
 239     public boolean hasIDForUserDisplayName(String userDisplayName) {
 240         return userCatalogs.getID(userDisplayName) != null;
 241     }
 242
 243     public String getDisplayNameForUserID(String userID) {
 244         return userCatalogs.getDisplayName(userID);
 245     }
 246
 247     public String getIDForUserDisplayName(String userDisplayName) {
 248         return userCatalogs.getID(userDisplayName);
 249     }
 250
 251     public List<String> getDisplayNamesForUserIDs(List<String> userIDs) {
 252         if(userIDs == null) {
 253             userIDs = new ArrayList<String>();
 254         }
 255         final List<String> userDisplayNames = new ArrayList<String>();
 256         for(String userID : userIDs) {
 257             final String displayName = getDisplayNameForUserID(userID);
 258             userDisplayNames.add(displayName);
 259         }
 260
 261         return userDisplayNames;
 262     }
 263
 264     public List<String> filterUserIDsWithUnknownDisplayName(Collection<String> userIDs) {
 265         if(userIDs == null) {
 266             userIDs = new ArrayList<String>();
 267         }
 268         final List<String> filtered = new ArrayList<String>();
 269         for(String userID : userIDs) {
 270             if(!this.userCatalogs.hasID(userID)) {
 271                 filtered.add(userID);
 272             }
 273         }
 274         return filtered;
 275     }
 276
 277     public void setAccount(AccountResource acct) {
 278         account = acct;
 279     }
 280
 281     public AccountResource getAccount() {
 282         return account;
 283     }
 284
 285     public void updateFolder(Folder f, boolean showfiles, Command callback, final boolean openParent) {
 286         folderTreeView.updateFolder(f, showfiles, callback, openParent);
 287     }
 288
 289     public void updateGroupNode(Group group) {
 290         groupTreeView.updateGroupNode(group);
 291     }
 292
 293     public void updateMySharedRoot() {
 294         mysharedTreeView.updateRoot();
 295     }
 296
 297     public void updateSharedFolder(Folder f, boolean showfiles, Command callback) {
 298         mysharedTreeView.updateFolder(f, showfiles, callback);
 299     }
 300
 301     public void updateSharedFolder(Folder f, boolean showfiles) {
 302         updateSharedFolder(f, showfiles, null);
 303     }
 304
 305     public void updateOtherSharedFolder(Folder f, boolean showfiles, Command callback) {
 306         otherSharedTreeView.updateFolder(f, showfiles, callback);
 307     }
 308
 309     public MysharedTreeView getMySharedTreeView() {
 310         return mysharedTreeView;
 311     }
 312
 313     /**
 314      * An aggregate image bundle that pulls together all the images for this
 315      * application into a single bundle.
 316      */
 317     public interface Images extends TopPanel.Images, FileList.Images, ToolsMenu.Images {
 318
 319         @Source("gr/grnet/pithos/resources/document.png")
 320         ImageResource folders();
 321
 322         @Source("gr/grnet/pithos/resources/advancedsettings.png")
 323         @ImageOptions(width = 32, height = 32)
 324         ImageResource tools();
 325     }
 326
 327     private Throwable error;
 328
 329     /**
 330      * The Application Clipboard implementation;
 331      */
 332     private Clipboard clipboard = new Clipboard();
 333
 334     /**
 335      * The top panel that contains the menu bar.
 336      */
 337     private TopPanel topPanel;
 338
 339     /**
 340      * The panel that contains the various system messages.
 341      */
 342     private MessagePanel messagePanel = new MessagePanel(this, Pithos.images);
 343
 344     /**
 345      * The bottom panel that contains the status bar.
 346      */
 347     StatusPanel statusPanel = null;
 348
 349     /**
 350      * The file list widget.
 351      */
 352     private FileList fileList;
 353
 354     /**
 355      * The tab panel that occupies the right side of the screen.
 356      */
 357     private VerticalPanel inner = new VerticalPanel();
 358
 359
 360     /**
 361      * The split panel that will contain the left and right panels.
 362      */
 363     private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 364
 365     /**
 366      * The currently selected item in the application, for use by the Edit menu
 367      * commands. Potential types are Folder, File, User and Group.
 368      */
 369     private Object currentSelection;
 370
 371     public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 372
 373     /**
 374      * The ID that uniquely identifies the user in Pithos+.
 375      * Currently this is a UUID. It used to be the user's email.
 376      */
 377     private String userID = null;
 378
 379     /**
 380      * Holds mappings from user UUIDs to emails and vice-versa.
 381      */
 382     private UserCatalogs userCatalogs = new UserCatalogs();
 383
 384     /**
 385      * The authentication token of the current user.
 386      */
 387     private String userToken;
 388
 389     VerticalPanel trees;
 390
 391     SingleSelectionModel<Folder> folderTreeSelectionModel;
 392     FolderTreeViewModel folderTreeViewModel;
 393     FolderTreeView folderTreeView;
 394
 395     SingleSelectionModel<Folder> mysharedTreeSelectionModel;
 396     MysharedTreeViewModel mysharedTreeViewModel;
 397     MysharedTreeView mysharedTreeView = null;
 398
 399     protected SingleSelectionModel<Folder> otherSharedTreeSelectionModel;
 400     OtherSharedTreeViewModel otherSharedTreeViewModel;
 401     OtherSharedTreeView otherSharedTreeView = null;
 402
 403     GroupTreeViewModel groupTreeViewModel;
 404     GroupTreeView groupTreeView;
 405
 406     TreeView selectedTree;
 407     protected AccountResource account;
 408
 409     Folder trash;
 410
 411     List<Composite> treeViews = new ArrayList<Composite>();
 412
 413     @SuppressWarnings("rawtypes")
 414     List<SingleSelectionModel> selectionModels = new ArrayList<SingleSelectionModel>();
 415
 416     public Button upload;
 417
 418     private HTML numOfFiles;
 419
 420     private Toolbar toolbar;
 421
 422     private FileUploadDialog fileUploadDialog = new FileUploadDialog(this);
 423
 424     UploadAlert uploadAlert;
 425
 426     Date lastModified;
 427
 428     @Override
 429     public void onModuleLoad() {
 430         if(parseUserCredentials()) {
 431             initialize();
 432         }
 433     }
 434
 435     static native void __ConsoleLog(String message) /*-{
 436       try { console.log(message); } catch (e) {}
 437     }-*/;
 438
 439     public static void LOGError(Throwable error, StringBuilder sb) {
 440         if(!isLOGEnabled()) { return; }
 441
 442         sb.append("\nException: [" + error.toString().replace("\n", "\n  ") + "]");
 443         Throwable cause = error.getCause();
 444         if(cause != null) {
 445             sb.append("\nCauses:\n");
 446             while(cause != null) {
 447                 sb.append("  ");
 448                 sb.append("[" + cause.toString().replace("\n", "\n  ")  + "]");
 449                 sb.append("\n");
 450                 cause = cause.getCause();
 451             }
 452         }
 453         else {
 454             sb.append("\n");
 455         }
 456
 457         StackTraceElement[] stackTrace = error.getStackTrace();
 458         sb.append("Stack trace (" + stackTrace.length + " elements):\n");
 459         for(int i = 0; i < stackTrace.length; i++) {
 460             StackTraceElement errorElem = stackTrace[i];
 461             sb.append("  [" + i + "] ");
 462             sb.append(errorElem.toString());
 463             sb.append("\n");
 464         }
 465     }
 466
 467     public static void LOGError(Throwable error) {
 468         if(!isLOGEnabled()) { return; }
 469
 470         final StringBuilder sb = new StringBuilder();
 471         LOGError(error, sb);
 472         if(sb.length() > 0) {
 473             __ConsoleLog(sb.toString());
 474         }
 475     }
 476
 477     public static boolean isLOGEnabled() {
 478         return IsLOGEnabled;
 479     }
 480
 481     public static void LOG(Object ...args) {
 482         if(!isLOGEnabled()) { return; }
 483
 484         final StringBuilder sb = new StringBuilder();
 485         for(Object arg : args) {
 486             if(arg instanceof Throwable) {
 487                 LOGError((Throwable) arg, sb);
 488             }
 489             else {
 490                 sb.append(arg);
 491             }
 492         }
 493
 494         if(sb.length() > 0) {
 495             __ConsoleLog(sb.toString());
 496         }
 497     }
 498
 499     private void initialize() {
 500         // Inject the dynamically provided favicon
 501         if(FAVICON_URL != null) {
 502             final Document document = Document.get();
 503             final Element head = document.getElementsByTagName("head").getItem(0);
 504             final LinkElement link = document.createLinkElement();
 505             link.setRel("icon");
 506             link.setHref(FAVICON_URL);
 507             head.appendChild(link);
 508         }
 509
 510         userCatalogs.updateWithIDAndName("*", "All Pithos users");
 511
 512         lastModified = new Date(); //Initialize if-modified-since value with now.
 513         resources.pithosCss().ensureInjected();
 514         boolean bareContent = Window.Location.getParameter("noframe") != null;
 515         String contentWidth = bareContent ? Const.PERCENT_100 : Const.PERCENT_75;
 516
 517         VerticalPanel outer = new VerticalPanel();
 518         outer.setWidth(Const.PERCENT_100);
 519         if(!bareContent) {
 520             outer.addStyleName("pithos-outer");
 521         }
 522
 523         if(!bareContent) {
 524             topPanel = new TopPanel(this, Pithos.images);
 525             topPanel.setWidth(Const.PERCENT_100);
 526             outer.add(topPanel);
 527             outer.setCellHorizontalAlignment(topPanel, HasHorizontalAlignment.ALIGN_CENTER);
 528         }
 529
 530         messagePanel.setVisible(false);
 531         outer.add(messagePanel);
 532         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 533         outer.setCellVerticalAlignment(messagePanel, HasVerticalAlignment.ALIGN_MIDDLE);
 534
 535         HorizontalPanel header = new HorizontalPanel();
 536         header.addStyleName("pithos-header");
 537         header.setWidth(contentWidth);
 538         if(bareContent) {
 539             header.addStyleName("pithos-header-noframe");
 540         }
 541         upload = new Button("Upload", new ClickHandler() {
 542             @Override
 543             public void onClick(ClickEvent event) {
 544                 if(getSelection() != null) {
 545                     new UploadFileCommand(Pithos.this, null, getSelection()).execute();
 546                 }
 547             }
 548         });
 549         upload.addStyleName("pithos-uploadButton");
 550         header.add(upload);
 551         header.setCellHorizontalAlignment(upload, HasHorizontalAlignment.ALIGN_LEFT);
 552         header.setCellVerticalAlignment(upload, HasVerticalAlignment.ALIGN_MIDDLE);
 553
 554         toolbar = new Toolbar(this);
 555         header.add(toolbar);
 556         header.setCellHorizontalAlignment(toolbar, HasHorizontalAlignment.ALIGN_CENTER);
 557         header.setCellVerticalAlignment(toolbar, HasVerticalAlignment.ALIGN_MIDDLE);
 558
 559         HorizontalPanel folderStatistics = new HorizontalPanel();
 560         folderStatistics.addStyleName("pithos-folderStatistics");
 561         numOfFiles = new HTML();
 562         folderStatistics.add(numOfFiles);
 563         folderStatistics.setCellVerticalAlignment(numOfFiles, HasVerticalAlignment.ALIGN_MIDDLE);
 564         HTML numOfFilesLabel = new HTML("&nbsp;Files");
 565         folderStatistics.add(numOfFilesLabel);
 566         folderStatistics.setCellVerticalAlignment(numOfFilesLabel, HasVerticalAlignment.ALIGN_MIDDLE);
 567         header.add(folderStatistics);
 568         header.setCellHorizontalAlignment(folderStatistics, HasHorizontalAlignment.ALIGN_RIGHT);
 569         header.setCellVerticalAlignment(folderStatistics, HasVerticalAlignment.ALIGN_MIDDLE);
 570         header.setCellWidth(folderStatistics, "40px");
 571         outer.add(header);
 572         outer.setCellHorizontalAlignment(header, HasHorizontalAlignment.ALIGN_CENTER);
 573         // Inner contains the various lists
 574         inner.sinkEvents(Event.ONCONTEXTMENU);
 575         inner.setWidth(Const.PERCENT_100);
 576
 577         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 578         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 579             @Override
 580             public void onSelectionChange(SelectionChangeEvent event) {
 581                 if(folderTreeSelectionModel.getSelectedObject() != null) {
 582                     deselectOthers(folderTreeView, folderTreeSelectionModel);
 583                     applyPermissions(folderTreeSelectionModel.getSelectedObject());
 584                     Folder f = folderTreeSelectionModel.getSelectedObject();
 585                     updateFolder(f, true, new Command() {
 586
 587                         @Override
 588                         public void execute() {
 589                             updateStatistics();
 590                         }
 591                     }, true);
 592                     showRelevantToolbarButtons();
 593                 }
 594                 else {
 595                     if(getSelectedTree().equals(folderTreeView)) {
 596                         setSelectedTree(null);
 597                     }
 598                     if(getSelectedTree() == null) {
 599                         showRelevantToolbarButtons();
 600                     }
 601                 }
 602             }
 603         });
 604         selectionModels.add(folderTreeSelectionModel);
 605
 606         folderTreeViewModel = new FolderTreeViewModel(this, folderTreeSelectionModel);
 607         folderTreeView = new FolderTreeView(folderTreeViewModel);
 608         treeViews.add(folderTreeView);
 609
 610         fileList = new FileList(this, images);
 611         inner.add(fileList);
 612
 613         trees = new VerticalPanel();
 614         trees.setWidth(Const.PERCENT_100);
 615
 616         // Add the left and right panels to the split panel.
 617         splitPanel.setLeftWidget(trees);
 618         FlowPanel right = new FlowPanel();
 619         right.getElement().setId("rightPanel");
 620         right.add(inner);
 621         splitPanel.setRightWidget(right);
 622         splitPanel.setSplitPosition("219px");
 623         splitPanel.setSize(Const.PERCENT_100, Const.PERCENT_100);
 624         splitPanel.addStyleName("pithos-splitPanel");
 625         splitPanel.setWidth(contentWidth);
 626         outer.add(splitPanel);
 627         outer.setCellHorizontalAlignment(splitPanel, HasHorizontalAlignment.ALIGN_CENTER);
 628
 629         if(!bareContent) {
 630             statusPanel = new StatusPanel();
 631             statusPanel.setWidth(Const.PERCENT_100);
 632             outer.add(statusPanel);
 633             outer.setCellHorizontalAlignment(statusPanel, HasHorizontalAlignment.ALIGN_CENTER);
 634         }
 635         else {
 636             splitPanel.addStyleName("pithos-splitPanel-noframe");
 637         }
 638
 639         // Hook the window resize event, so that we can adjust the UI.
 640         Window.addResizeHandler(this);
 641         // Clear out the window's built-in margin, because we want to take
 642         // advantage of the entire client area.
 643         Window.setMargin("0px");
 644         // Finally, add the outer panel to the RootPanel, so that it will be
 645         // displayed.
 646         RootPanel.get().add(outer);
 647         // Call the window resized handler to get the initial sizes setup. Doing
 648         // this in a deferred command causes it to occur after all widgets'
 649         // sizes have been computed by the browser.
 650         Scheduler.get().scheduleIncremental(new RepeatingCommand() {
 651
 652             @Override
 653             public boolean execute() {
 654                 if(!isCloudbarReady()) {
 655                     return true;
 656                 }
 657                 onWindowResized(Window.getClientHeight());
 658                 return false;
 659             }
 660         });
 661
 662         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 663             @Override
 664             public void execute() {
 665                 LOG("Pithos::initialize() Calling Pithos::fetchAccount()");
 666                 fetchAccount(new Command() {
 667
 668                     @Override
 669                     public void execute() {
 670                         if(!account.hasHomeContainer()) {
 671                             createHomeContainer(account, this);
 672                         }
 673                         else if(!account.hasTrashContainer()) {
 674                             createTrashContainer(this);
 675                         }
 676                         else {
 677                             for(Folder f : account.getContainers()) {
 678                                 if(f.getName().equals(Const.TRASH_CONTAINER)) {
 679                                     trash = f;
 680                                     break;
 681                                 }
 682                             }
 683                             trees.add(folderTreeView);
 684                             folderTreeViewModel.initialize(account, new Command() {
 685
 686                                 @Override
 687                                 public void execute() {
 688                                     createMySharedTree();
 689                                 }
 690                             });
 691
 692                             HorizontalPanel separator = new HorizontalPanel();
 693                             separator.addStyleName("pithos-statisticsSeparator");
 694                             separator.add(new HTML(""));
 695                             trees.add(separator);
 696
 697                             groupTreeViewModel = new GroupTreeViewModel(Pithos.this);
 698                             groupTreeView = new GroupTreeView(groupTreeViewModel);
 699                             treeViews.add(groupTreeView);
 700                             trees.add(groupTreeView);
 701                             folderTreeView.showStatistics(account);
 702                         }
 703                     }
 704                 });
 705             }
 706         });
 707     }
 708
 709     public void scheduleRefresh() {
 710         if(!Pithos.EnableScheduledRefresh) { return; }
 711
 712         Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {
 713
 714             @Override
 715             public boolean execute() {
 716                 final Folder f = getSelection();
 717                 if(f == null) {
 718                     return true;
 719                 }
 720
 721                 HeadRequest<Folder> head = new HeadRequest<Folder>(Folder.class, getStorageAPIURL(), f.getOwnerID(), "/" + f.getContainer()) {
 722
 723                     @Override
 724                     public void onSuccess(Folder _result) {
 725                         lastModified = new Date();
 726                         if(getSelectedTree().equals(folderTreeView)) {
 727                             updateFolder(f, true, new Command() {
 728
 729                                 @Override
 730                                 public void execute() {
 731                                     scheduleRefresh();
 732                                 }
 733
 734                             }, false);
 735                         }
 736                         else if(getSelectedTree().equals(mysharedTreeView)) {
 737                             updateSharedFolder(f, true, new Command() {
 738
 739                                 @Override
 740                                 public void execute() {
 741                                     scheduleRefresh();
 742                                 }
 743                             });
 744                         }
 745                         else {
 746                             scheduleRefresh();
 747                         }
 748                     }
 749
 750                     @Override
 751                     public void onError(Throwable t) {
 752                         if(t instanceof RestException && ((RestException) t).getHttpStatusCode() == HttpStatus.SC_NOT_MODIFIED) {
 753                             scheduleRefresh();
 754                         }
 755                         else if(retries >= MAX_RETRIES) {
 756                             LOG("Error heading folder. ", t);
 757                             setError(t);
 758                             if(t instanceof RestException) {
 759                                 displayError("Error heading folder: " + ((RestException) t).getHttpStatusText());
 760                             }
 761                             else {
 762                                 displayError("System error heading folder: " + t.getMessage());
 763                             }
 764                         }
 765                         else {//retry
 766                             LOG("Retry ", retries);
 767                             Scheduler.get().scheduleDeferred(this);
 768                         }
 769                     }
 770
 771                     @Override
 772                     protected void onUnauthorized(Response response) {
 773                         if(retries >= MAX_RETRIES) {
 774                             sessionExpired();
 775                         }
 776                         else //retry
 777                         {
 778                             Scheduler.get().scheduleDeferred(this);
 779                         }
 780                     }
 781                 };
 782                 head.setHeader(Const.X_AUTH_TOKEN, getUserToken());
 783                 head.setHeader(Const.IF_MODIFIED_SINCE, DateTimeFormat.getFormat(Const.DATE_FORMAT_1).format(lastModified, TimeZone.createTimeZone(0)) + " GMT");
 784                 Scheduler.get().scheduleDeferred(head);
 785
 786                 return false;
 787             }
 788         }, 3000);
 789     }
 790
 791     public void applyPermissions(Folder f) {
 792         if(f != null) {
 793             if(f.isInTrash()) {
 794                 upload.setEnabled(false);
 795                 disableUploadArea();
 796             }
 797             else {
 798                 Boolean[] perms = f.getPermissions().get(userID);
 799                 if(f.getOwnerID().equals(userID) || (perms != null && perms[1] != null && perms[1])) {
 800                     upload.setEnabled(true);
 801                     enableUploadArea();
 802                 }
 803                 else {
 804                     upload.setEnabled(false);
 805                     disableUploadArea();
 806                 }
 807             }
 808         }
 809         else {
 810             upload.setEnabled(false);
 811             disableUploadArea();
 812         }
 813     }
 814
 815     @SuppressWarnings({"rawtypes", "unchecked"})
 816     public void deselectOthers(TreeView _selectedTree, SingleSelectionModel model) {
 817         selectedTree = _selectedTree;
 818
 819         for(SingleSelectionModel s : selectionModels) {
 820             if(!s.equals(model) && s.getSelectedObject() != null) {
 821                 s.setSelected(s.getSelectedObject(), false);
 822             }
 823         }
 824     }
 825
 826     public void showFiles(final Folder f) {
 827         Set<File> files = f.getFiles();
 828         showFiles(files);
 829     }
 830
 831     public void showFiles(Set<File> files) {
 832         fileList.setFiles(new ArrayList<File>(files));
 833     }
 834
 835     /**
 836      * Parse and store the user credentials to the appropriate fields.
 837      */
 838     private boolean parseUserCredentials() {
 839         final String cookie = otherProperties.get(Const.AUTH_COOKIE);
 840         String auth = Cookies.getCookie(cookie);
 841         if(auth == null) {
 842             authenticateUser();
 843             return false;
 844         }
 845         if(auth.startsWith("\"")) {
 846             auth = auth.substring(1);
 847         }
 848         if(auth.endsWith("\"")) {
 849             auth = auth.substring(0, auth.length() - 1);
 850         }
 851         String[] authSplit = auth.split("\\" + config.cookieSeparator(), 2);
 852         if(authSplit.length != 2) {
 853             authenticateUser();
 854             return false;
 855         }
 856         this.userID = authSplit[0];
 857         this.userToken = authSplit[1];
 858
 859         return true;
 860     }
 861
 862     /**
 863      * Redirect the user to the login page for authentication.
 864      */
 865     protected void authenticateUser() {
 866         Dictionary otherProperties = Dictionary.getDictionary(Const.OTHER_PROPERTIES);
 867         Window.Location.assign(otherProperties.get(Const.LOGIN_URL) + Window.Location.getHref());
 868     }
 869
 870     public void fetchAccount(final Command callback) {
 871         String path = "?format=json";
 872
 873         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, getStorageAPIURL(), userID, path) {
 874             @Override
 875             public void onSuccess(AccountResource accountResource) {
 876                 account = accountResource;
 877                 if(callback != null) {
 878                     callback.execute();
 879                 }
 880
 881                 final List<String> memberIDs = new ArrayList<String>();
 882                 final List<Group> groups = account.getGroups();
 883                 for(Group group : groups) {
 884                     memberIDs.addAll(group.getMemberIDs());
 885                 }
 886                 memberIDs.add(Pithos.this.getUserID());
 887
 888                 final List<String> theUnknown = Pithos.this.filterUserIDsWithUnknownDisplayName(memberIDs);
 889                 // Initialize the user catalog
 890                 new UpdateUserCatalogs(Pithos.this, theUnknown).scheduleDeferred();
 891                 LOG("Called new UpdateUserCatalogs(Pithos.this, theUnknown).scheduleDeferred();");
 892             }
 893
 894             @Override
 895             public void onError(Throwable t) {
 896                 LOG("Error getting account", t);
 897                 setError(t);
 898                 if(t instanceof RestException) {
 899                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 900                 }
 901                 else {
 902                     displayError("System error fetching user data: " + t.getMessage());
 903                 }
 904             }
 905
 906             @Override
 907             protected void onUnauthorized(Response response) {
 908                 sessionExpired();
 909             }
 910         };
 911         getAccount.setHeader(Const.X_AUTH_TOKEN, userToken);
 912         Scheduler.get().scheduleDeferred(getAccount);
 913     }
 914
 915     public void updateStatistics() {
 916         HeadRequest<AccountResource> headAccount = new HeadRequest<AccountResource>(AccountResource.class, getStorageAPIURL(), userID, "", account) {
 917
 918             @Override
 919             public void onSuccess(AccountResource _result) {
 920                 folderTreeView.showStatistics(account);
 921             }
 922
 923             @Override
 924             public void onError(Throwable t) {
 925                 LOG("Error getting account", t);
 926                 setError(t);
 927                 if(t instanceof RestException) {
 928                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 929                 }
 930                 else {
 931                     displayError("System error fetching user data: " + t.getMessage());
 932                 }
 933             }
 934
 935             @Override
 936             protected void onUnauthorized(Response response) {
 937                 sessionExpired();
 938             }
 939         };
 940         headAccount.setHeader(Const.X_AUTH_TOKEN, userToken);
 941         Scheduler.get().scheduleDeferred(headAccount);
 942     }
 943
 944     protected void createHomeContainer(final AccountResource _account, final Command callback) {
 945         String path = "/" + Const.HOME_CONTAINER;
 946         PutRequest createPithos = new PutRequest(getStorageAPIURL(), getUserID(), path) {
 947             @Override
 948             public void onSuccess(Resource result) {
 949                 if(!_account.hasTrashContainer()) {
 950                     createTrashContainer(callback);
 951                 }
 952                 else {
 953                     fetchAccount(callback);
 954                 }
 955             }
 956
 957             @Override
 958             public void onError(Throwable t) {
 959                 LOG("Error creating pithos", t);
 960                 setError(t);
 961                 if(t instanceof RestException) {
 962                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 963                 }
 964                 else {
 965                     displayError("System error Error creating pithos: " + t.getMessage());
 966                 }
 967             }
 968
 969             @Override
 970             protected void onUnauthorized(Response response) {
 971                 sessionExpired();
 972             }
 973         };
 974         createPithos.setHeader(Const.X_AUTH_TOKEN, getUserToken());
 975         Scheduler.get().scheduleDeferred(createPithos);
 976     }
 977
 978     protected void createTrashContainer(final Command callback) {
 979         String path = "/" + Const.TRASH_CONTAINER;
 980         PutRequest createPithos = new PutRequest(getStorageAPIURL(), getUserID(), path) {
 981             @Override
 982             public void onSuccess(Resource result) {
 983                 fetchAccount(callback);
 984             }
 985
 986             @Override
 987             public void onError(Throwable t) {
 988                 LOG("Error creating pithos", t);
 989                 setError(t);
 990                 if(t instanceof RestException) {
 991                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 992                 }
 993                 else {
 994                     displayError("System error Error creating pithos: " + t.getMessage());
 995                 }
 996             }
 997
 998             @Override
 999             protected void onUnauthorized(Response response) {
1000                 sessionExpired();
1001             }
1002         };
1003         createPithos.setHeader(Const.X_AUTH_TOKEN, getUserToken());
1004         Scheduler.get().scheduleDeferred(createPithos);
1005     }
1006
1007     /**
1008      * Creates an HTML fragment that places an image & caption together, for use
1009      * in a group header.
1010      *
1011      * @param imageProto an image prototype for an image
1012      * @param caption    the group caption
1013      * @return the header HTML fragment
1014      */
1015     private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
1016         String captionHTML = "<table class='caption' cellpadding='0' "
1017             + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
1018             + "</td><td id =" + caption + " class='rcaption'><b style='white-space:nowrap'>&nbsp;"
1019             + caption + "</b></td></tr></table>";
1020         return captionHTML;
1021     }
1022
1023     protected void onWindowResized(int height) {
1024         // Adjust the split panel to take up the available room in the window.
1025         int newHeight = height - splitPanel.getAbsoluteTop() - 153;
1026         if(newHeight < 1) {
1027             newHeight = 1;
1028         }
1029         splitPanel.setHeight("" + newHeight);
1030         inner.setHeight("" + newHeight);
1031     }
1032
1033     native boolean isCloudbarReady()/*-{
1034       if ($wnd.$("div.cloudbar") && $wnd.$("div.cloudbar").height() > 0)
1035         return true;
1036       return false;
1037     }-*/;
1038
1039     @Override
1040     public void onResize(ResizeEvent event) {
1041         int height = event.getHeight();
1042         onWindowResized(height);
1043     }
1044
1045     /**
1046      * Display an error message.
1047      *
1048      * @param msg the message to display
1049      */
1050     public void displayError(String msg) {
1051         messagePanel.displayError(msg);
1052         onWindowResized(Window.getClientHeight());
1053     }
1054
1055     /**
1056      * Display a warning message.
1057      *
1058      * @param msg the message to display
1059      */
1060     public void displayWarning(String msg) {
1061         messagePanel.displayWarning(msg);
1062         onWindowResized(Window.getClientHeight());
1063     }
1064
1065     /**
1066      * Display an informational message.
1067      *
1068      * @param msg the message to display
1069      */
1070     public void displayInformation(String msg) {
1071         messagePanel.displayInformation(msg);
1072         onWindowResized(Window.getClientHeight());
1073     }
1074
1075     /**
1076      * Retrieve the fileList.
1077      *
1078      * @return the fileList
1079      */
1080     public FileList getFileList() {
1081         return fileList;
1082     }
1083
1084     /**
1085      * Retrieve the topPanel.
1086      *
1087      * @return the topPanel
1088      */
1089     TopPanel getTopPanel() {
1090         return topPanel;
1091     }
1092
1093     /**
1094      * Retrieve the clipboard.
1095      *
1096      * @return the clipboard
1097      */
1098     public Clipboard getClipboard() {
1099         return clipboard;
1100     }
1101
1102     public StatusPanel getStatusPanel() {
1103         return statusPanel;
1104     }
1105
1106     public String getUserToken() {
1107         return userToken;
1108     }
1109
1110     public static native void preventIESelection() /*-{
1111       $doc.body.onselectstart = function () {
1112         return false;
1113       };
1114     }-*/;
1115
1116     public static native void enableIESelection() /*-{
1117       if ($doc.body.onselectstart != null)
1118         $doc.body.onselectstart = null;
1119     }-*/;
1120
1121     public static String getStorageAPIURL() {
1122         return STORAGE_API_URL;
1123     }
1124
1125     public static String getStorageViewURL() {
1126         return STORAGE_VIEW_URL;
1127     }
1128
1129     public static boolean isShowCopyrightMessage() {
1130         return SHOW_COPYRIGHT;
1131     }
1132
1133     public static String getUserCatalogsURL() {
1134         return USER_CATALOGS_API_URL;
1135     }
1136
1137     public static String getFileViewURL(File file) {
1138         return Pithos.getStorageViewURL() + file.getOwnerID() + file.getUri();
1139     }
1140
1141     public static String getVersionedFileViewURL(File file, int version) {
1142         return getFileViewURL(file) + "?version=" + version;
1143     }
1144
1145     /**
1146      * History support for folder navigation
1147      * adds a new browser history entry
1148      *
1149      * @param key
1150      */
1151     public void updateHistory(String key) {
1152 //              Replace any whitespace of the initial string to "+"
1153 //              String result = key.replaceAll("\\s","+");
1154 //              Add a new browser history entry.
1155 //              History.newItem(result);
1156         History.newItem(key);
1157     }
1158
1159     public void deleteFolder(final Folder folder, final Command callback) {
1160         final PleaseWaitPopup pwp = new PleaseWaitPopup();
1161         pwp.center();
1162         String path = "/" + folder.getContainer() + "/" + folder.getPrefix() + "?delimiter=/" + "&t=" + System.currentTimeMillis();
1163         DeleteRequest deleteFolder = new DeleteRequest(getStorageAPIURL(), folder.getOwnerID(), path) {
1164
1165             @Override
1166             protected void onUnauthorized(Response response) {
1167                 pwp.hide();
1168                 sessionExpired();
1169             }
1170
1171             @Override
1172             public void onSuccess(Resource result) {
1173                 updateFolder(folder.getParent(), true, new Command() {
1174
1175                     @Override
1176                     public void execute() {
1177                         folderTreeSelectionModel.setSelected(folder.getParent(), true);
1178                         updateStatistics();
1179                         if(callback != null) {
1180                             callback.execute();
1181                         }
1182                         pwp.hide();
1183                     }
1184                 }, true);
1185             }
1186
1187             @Override
1188             public void onError(Throwable t) {
1189                 LOG(t);
1190                 setError(t);
1191                 if(t instanceof RestException) {
1192                     if(((RestException) t).getHttpStatusCode() != Response.SC_NOT_FOUND) {
1193                         displayError("Unable to delete folder: " + ((RestException) t).getHttpStatusText());
1194                     }
1195                     else {
1196                         onSuccess(null);
1197                     }
1198                 }
1199                 else {
1200                     displayError("System error unable to delete folder: " + t.getMessage());
1201                 }
1202                 pwp.hide();
1203             }
1204         };
1205         deleteFolder.setHeader(Const.X_AUTH_TOKEN, getUserToken());
1206         Scheduler.get().scheduleDeferred(deleteFolder);
1207     }
1208
1209     public FolderTreeView getFolderTreeView() {
1210         return folderTreeView;
1211     }
1212
1213     public void copyFiles(final Iterator<File> iter, final String targetUsername, final String targetUri, final Command callback) {
1214         if(iter.hasNext()) {
1215             File file = iter.next();
1216             String path = targetUri + "/" + file.getName();
1217             PutRequest copyFile = new PutRequest(getStorageAPIURL(), targetUsername, path) {
1218                 @Override
1219                 public void onSuccess(Resource result) {
1220                     copyFiles(iter, targetUsername, targetUri, callback);
1221                 }
1222
1223                 @Override
1224                 public void onError(Throwable t) {
1225                     LOG(t);
1226                     setError(t);
1227                     if(t instanceof RestException) {
1228                         displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
1229                     }
1230                     else {
1231                         displayError("System error unable to copy file: " + t.getMessage());
1232                     }
1233                 }
1234
1235                 @Override
1236                 protected void onUnauthorized(Response response) {
1237                     sessionExpired();
1238                 }
1239             };
1240             copyFile.setHeader(Const.X_AUTH_TOKEN, getUserToken());
1241             copyFile.setHeader(Const.X_COPY_FROM, URL.encodePathSegment(file.getUri()));
1242             if(!file.getOwnerID().equals(targetUsername)) {
1243                 copyFile.setHeader(Const.X_SOURCE_ACCOUNT, URL.encodePathSegment(file.getOwnerID()));
1244             }
1245             copyFile.setHeader(Const.CONTENT_TYPE, file.getContentType());
1246             Scheduler.get().scheduleDeferred(copyFile);
1247         }
1248         else if(callback != null) {
1249             callback.execute();
1250         }
1251     }
1252
1253     public void copyFolder(final Folder f, final String targetUsername, final String targetUri, boolean move, final Command callback) {
1254         String path = targetUri + "?delimiter=/";
1255         PutRequest copyFolder = new PutRequest(getStorageAPIURL(), targetUsername, path) {
1256             @Override
1257             public void onSuccess(Resource result) {
1258                 if(callback != null) {
1259                     callback.execute();
1260                 }
1261             }
1262
1263             @Override
1264             public void onError(Throwable t) {
1265                 LOG(t);
1266                 setError(t);
1267                 if(t instanceof RestException) {
1268                     displayError("Unable to copy folder: " + ((RestException) t).getHttpStatusText());
1269                 }
1270                 else {
1271                     displayError("System error copying folder: " + t.getMessage());
1272                 }
1273             }
1274
1275             @Override
1276             protected void onUnauthorized(Response response) {
1277                 sessionExpired();
1278             }
1279         };
1280         copyFolder.setHeader(Const.X_AUTH_TOKEN, getUserToken());
1281         copyFolder.setHeader(Const.ACCEPT, "*/*");
1282         copyFolder.setHeader(Const.CONTENT_LENGTH, "0");
1283         copyFolder.setHeader(Const.CONTENT_TYPE, "application/directory");
1284         if(!f.getOwnerID().equals(targetUsername)) {
1285             copyFolder.setHeader(Const.X_SOURCE_ACCOUNT, f.getOwnerID());
1286         }
1287         if(move) {
1288             copyFolder.setHeader(Const.X_MOVE_FROM, URL.encodePathSegment(f.getUri()));
1289         }
1290         else {
1291             copyFolder.setHeader(Const.X_COPY_FROM, URL.encodePathSegment(f.getUri()));
1292         }
1293         Scheduler.get().scheduleDeferred(copyFolder);
1294     }
1295
1296     public void addSelectionModel(@SuppressWarnings("rawtypes") SingleSelectionModel model) {
1297         selectionModels.add(model);
1298     }
1299
1300     public OtherSharedTreeView getOtherSharedTreeView() {
1301         return otherSharedTreeView;
1302     }
1303
1304     public void updateTrash(boolean showFiles, Command callback) {
1305         updateFolder(trash, showFiles, callback, true);
1306     }
1307
1308     public void updateGroupsNode() {
1309         groupTreeView.updateGroupNode(null);
1310     }
1311
1312     public Group addGroup(String groupname) {
1313         Group newGroup = new Group(groupname);
1314         account.addGroup(newGroup);
1315         groupTreeView.updateGroupNode(null);
1316         return newGroup;
1317     }
1318
1319     public void removeGroup(Group group) {
1320         account.removeGroup(group);
1321         updateGroupsNode();
1322     }
1323
1324     public TreeView getSelectedTree() {
1325         return selectedTree;
1326     }
1327
1328     public void setSelectedTree(TreeView selected) {
1329         selectedTree = selected;
1330     }
1331
1332     public Folder getSelection() {
1333         if(selectedTree != null) {
1334             return selectedTree.getSelection();
1335         }
1336         return null;
1337     }
1338
1339     public void showFolderStatistics(int folderFileCount) {
1340         numOfFiles.setHTML(String.valueOf(folderFileCount));
1341     }
1342
1343     public GroupTreeView getGroupTreeView() {
1344         return groupTreeView;
1345     }
1346
1347     public void sessionExpired() {
1348         new SessionExpiredDialog(this).center();
1349     }
1350
1351     public void updateRootFolder(Command callback) {
1352         updateFolder(account.getPithos(), false, callback, true);
1353     }
1354
1355     void createMySharedTree() {
1356         LOG("Pithos::createMySharedTree()");
1357         mysharedTreeSelectionModel = new SingleSelectionModel<Folder>();
1358         mysharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
1359             @Override
1360             public void onSelectionChange(SelectionChangeEvent event) {
1361                 if(mysharedTreeSelectionModel.getSelectedObject() != null) {
1362                     deselectOthers(mysharedTreeView, mysharedTreeSelectionModel);
1363                     upload.setEnabled(false);
1364                     disableUploadArea();
1365                     updateSharedFolder(mysharedTreeSelectionModel.getSelectedObject(), true);
1366                     showRelevantToolbarButtons();
1367                 }
1368                 else {
1369                     if(getSelectedTree().equals(mysharedTreeView)) {
1370                         setSelectedTree(null);
1371                     }
1372                     if(getSelectedTree() == null) {
1373                         showRelevantToolbarButtons();
1374                     }
1375                 }
1376             }
1377         });
1378         selectionModels.add(mysharedTreeSelectionModel);
1379         mysharedTreeViewModel = new MysharedTreeViewModel(Pithos.this, mysharedTreeSelectionModel);
1380         mysharedTreeViewModel.initialize(new Command() {
1381
1382             @Override
1383             public void execute() {
1384                 mysharedTreeView = new MysharedTreeView(mysharedTreeViewModel);
1385                 trees.insert(mysharedTreeView, 2);
1386                 treeViews.add(mysharedTreeView);
1387                 createOtherSharedTree();
1388             }
1389         });
1390     }
1391
1392     void createOtherSharedTree() {
1393         LOG("Pithos::createOtherSharedTree()");
1394         otherSharedTreeSelectionModel = new SingleSelectionModel<Folder>();
1395         otherSharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
1396             @Override
1397             public void onSelectionChange(SelectionChangeEvent event) {
1398                 if(otherSharedTreeSelectionModel.getSelectedObject() != null) {
1399                     deselectOthers(otherSharedTreeView, otherSharedTreeSelectionModel);
1400                     applyPermissions(otherSharedTreeSelectionModel.getSelectedObject());
1401                     updateOtherSharedFolder(otherSharedTreeSelectionModel.getSelectedObject(), true, null);
1402                     showRelevantToolbarButtons();
1403                 }
1404                 else {
1405                     if(getSelectedTree().equals(otherSharedTreeView)) {
1406                         setSelectedTree(null);
1407                     }
1408                     if(getSelectedTree() == null) {
1409                         showRelevantToolbarButtons();
1410                     }
1411                 }
1412             }
1413         });
1414         selectionModels.add(otherSharedTreeSelectionModel);
1415         otherSharedTreeViewModel = new OtherSharedTreeViewModel(Pithos.this, otherSharedTreeSelectionModel);
1416         // #3784 We show it empty...
1417         otherSharedTreeView = new OtherSharedTreeView(otherSharedTreeViewModel, true);
1418         trees.insert(otherSharedTreeView, 1);
1419
1420         LOG("Pithos::createOtherSharedTree(), initializing otherSharedTreeViewModel with a callback");
1421         otherSharedTreeViewModel.initialize(new Command() {
1422             @Override
1423             public void execute() {
1424                 // #3784 ... then remove the empty stuff and add a new view with the populated model
1425                 trees.remove(otherSharedTreeView);
1426
1427                 otherSharedTreeView = new OtherSharedTreeView(otherSharedTreeViewModel, false);
1428                 trees.insert(otherSharedTreeView, 1);
1429                 treeViews.add(otherSharedTreeView);
1430                 scheduleRefresh();
1431             }
1432         });
1433     }
1434
1435     public String getErrorData() {
1436         final StringBuilder sb = new StringBuilder();
1437         final String NL = Const.NL;
1438         Throwable t = this.error;
1439         while(t != null) {
1440             sb.append(t.toString());
1441             sb.append(NL);
1442             StackTraceElement[] traces = t.getStackTrace();
1443             for(StackTraceElement trace : traces) {
1444                 sb.append("  [");
1445                 sb.append(trace.getClassName());
1446                 sb.append("::");
1447                 sb.append(trace.getMethodName());
1448                 sb.append("() at ");
1449                 sb.append(trace.getFileName());
1450                 sb.append(":");
1451                 sb.append(trace.getLineNumber());
1452                 sb.append("]");
1453                 sb.append(NL);
1454             }
1455             t = t.getCause();
1456         }
1457
1458         return sb.toString();
1459     }
1460
1461     public void setError(Throwable t) {
1462         error = t;
1463         LOG(t);
1464     }
1465
1466     public void showRelevantToolbarButtons() {
1467         toolbar.showRelevantButtons();
1468     }
1469
1470     public FileUploadDialog getFileUploadDialog() {
1471         if(fileUploadDialog == null) {
1472             fileUploadDialog = new FileUploadDialog(this);
1473         }
1474         return fileUploadDialog;
1475     }
1476
1477     public void hideUploadIndicator() {
1478         upload.removeStyleName("pithos-uploadButton-loading");
1479         upload.setTitle("");
1480     }
1481
1482     public void showUploadIndicator() {
1483         upload.addStyleName("pithos-uploadButton-loading");
1484         upload.setTitle("Upload in progress. Click for details.");
1485     }
1486
1487     public void scheduleFolderHeadCommand(final Folder folder, final Command callback) {
1488         if(folder == null) {
1489             if(callback != null) {
1490                 callback.execute();
1491             }
1492         }
1493         else {
1494             HeadRequest<Folder> headFolder = new HeadRequest<Folder>(Folder.class, getStorageAPIURL(), folder.getOwnerID(), folder.getUri(), folder) {
1495
1496                 @Override
1497                 public void onSuccess(Folder _result) {
1498                     if(callback != null) {
1499                         callback.execute();
1500                     }
1501                 }
1502
1503                 @Override
1504                 public void onError(Throwable t) {
1505                     if(t instanceof RestException) {
1506                         if(((RestException) t).getHttpStatusCode() == Response.SC_NOT_FOUND) {
1507                             final String path = folder.getUri();
1508                             PutRequest newFolder = new PutRequest(getStorageAPIURL(), folder.getOwnerID(), path) {
1509                                 @Override
1510                                 public void onSuccess(Resource _result) {
1511                                     scheduleFolderHeadCommand(folder, callback);
1512                                 }
1513
1514                                 @Override
1515                                 public void onError(Throwable _t) {
1516                                     setError(_t);
1517                                     if(_t instanceof RestException) {
1518                                         displayError("Unable to create folder: " + ((RestException) _t).getHttpStatusText());
1519                                     }
1520                                     else {
1521                                         displayError("System error creating folder: " + _t.getMessage());
1522                                     }
1523                                 }
1524
1525                                 @Override
1526                                 protected void onUnauthorized(Response response) {
1527                                     sessionExpired();
1528                                 }
1529                             };
1530                             newFolder.setHeader(Const.X_AUTH_TOKEN, getUserToken());
1531                             newFolder.setHeader(Const.CONTENT_TYPE, "application/folder");
1532                             newFolder.setHeader(Const.ACCEPT, "*/*");
1533                             newFolder.setHeader(Const.CONTENT_LENGTH, "0");
1534                             Scheduler.get().scheduleDeferred(newFolder);
1535                         }
1536                         else if(((RestException) t).getHttpStatusCode() == Response.SC_FORBIDDEN) {
1537                             onSuccess(folder);
1538                         }
1539                         else {
1540                             displayError("Error heading folder: " + ((RestException) t).getHttpStatusText());
1541                         }
1542                     }
1543                     else {
1544                         displayError("System error heading folder: " + t.getMessage());
1545                     }
1546
1547                     LOG("Error heading folder", t);
1548                     setError(t);
1549                 }
1550
1551                 @Override
1552                 protected void onUnauthorized(Response response) {
1553                     sessionExpired();
1554                 }
1555             };
1556             headFolder.setHeader(Const.X_AUTH_TOKEN, getUserToken());
1557             Scheduler.get().scheduleDeferred(headFolder);
1558         }
1559     }
1560
1561     public void scheduleFileHeadCommand(File f, final Command callback) {
1562         HeadRequest<File> headFile = new HeadRequest<File>(File.class, getStorageAPIURL(), f.getOwnerID(), f.getUri(), f) {
1563
1564             @Override
1565             public void onSuccess(File _result) {
1566                 if(callback != null) {
1567                     callback.execute();
1568                 }
1569             }
1570
1571             @Override
1572             public void onError(Throwable t) {
1573                 LOG("Error heading file", t);
1574                 setError(t);
1575                 if(t instanceof RestException) {
1576                     displayError("Error heading file: " + ((RestException) t).getHttpStatusText());
1577                 }
1578                 else {
1579                     displayError("System error heading file: " + t.getMessage());
1580                 }
1581             }
1582
1583             @Override
1584             protected void onUnauthorized(Response response) {
1585                 sessionExpired();
1586             }
1587         };
1588         headFile.setHeader(Const.X_AUTH_TOKEN, getUserToken());
1589         Scheduler.get().scheduleDeferred(headFile);
1590     }
1591
1592     public boolean isMySharedSelected() {
1593         return getSelectedTree().equals(getMySharedTreeView());
1594     }
1595
1596     private Folder getUploadFolder() {
1597         if(folderTreeView.equals(getSelectedTree()) || otherSharedTreeView.equals(getSelectedTree())) {
1598             return getSelection();
1599         }
1600         return null;
1601     }
1602
1603     private void updateUploadFolder() {
1604         updateUploadFolder(null);
1605     }
1606
1607     private void updateUploadFolder(final JsArrayString urls) {
1608         if(folderTreeView.equals(getSelectedTree()) || otherSharedTreeView.equals(getSelectedTree())) {
1609             Folder f = getSelection();
1610             if(getSelectedTree().equals(getFolderTreeView())) {
1611                 updateFolder(f, true, new Command() {
1612
1613                     @Override
1614                     public void execute() {
1615                         updateStatistics();
1616                         if(urls != null) {
1617                             selectUploadedFiles(urls);
1618                         }
1619                     }
1620                 }, false);
1621             }
1622             else {
1623                 updateOtherSharedFolder(f, true, null);
1624             }
1625         }
1626     }
1627
1628     public native void disableUploadArea() /*-{
1629       var uploader = $wnd.$("#uploader").pluploadQueue();
1630       var dropElm = $wnd.document.getElementById('rightPanel');
1631       $wnd.plupload.removeAllEvents(dropElm, uploader.id);
1632     }-*/;
1633
1634     public native void enableUploadArea() /*-{
1635       var uploader = $wnd.$("#uploader").pluploadQueue();
1636       var dropElm = $wnd.document.getElementById('rightPanel');
1637       $wnd.plupload.removeAllEvents(dropElm, uploader.id);
1638       if (uploader.runtime == 'html5') {
1639         uploader.settings.drop_element = 'rightPanel';
1640         uploader.trigger('PostInit');
1641       }
1642     }-*/;
1643
1644     public void showUploadAlert(int nOfFiles) {
1645         if(uploadAlert == null) {
1646             uploadAlert = new UploadAlert(this, nOfFiles);
1647         }
1648         if(!uploadAlert.isShowing()) {
1649             uploadAlert.setPopupPositionAndShow(new PopupPanel.PositionCallback() {
1650
1651                 @Override
1652                 public void setPosition(int offsetWidth, int offsetHeight) {
1653                     uploadAlert.setPopupPosition((Window.getClientWidth() - offsetWidth) / 2, statusPanel.getAbsoluteTop() - offsetHeight);
1654                 }
1655             });
1656         }
1657         uploadAlert.setNumOfFiles(nOfFiles);
1658     }
1659
1660     public void hideUploadAlert() {
1661         if(uploadAlert != null && uploadAlert.isShowing()) {
1662             uploadAlert.hide();
1663         }
1664     }
1665
1666     public void selectUploadedFiles(JsArrayString urls) {
1667         List<String> selectedUrls = new ArrayList<String>();
1668         for(int i = 0; i < urls.length(); i++) {
1669             selectedUrls.add(urls.get(i));
1670         }
1671         fileList.selectByUrl(selectedUrls);
1672     }
1673
1674     public void purgeContainer(final Folder container) {
1675         String path = "/" + container.getName() + "?delimiter=/";
1676         DeleteRequest delete = new DeleteRequest(getStorageAPIURL(), getUserID(), path) {
1677
1678             @Override
1679             protected void onUnauthorized(Response response) {
1680                 sessionExpired();
1681             }
1682
1683             @Override
1684             public void onSuccess(Resource result) {
1685                 updateFolder(container, true, null, true);
1686             }
1687
1688             @Override
1689             public void onError(Throwable t) {
1690                 LOG("Error deleting trash", t);
1691                 setError(t);
1692                 if(t instanceof RestException) {
1693                     displayError("Error deleting trash: " + ((RestException) t).getHttpStatusText());
1694                 }
1695                 else {
1696                     displayError("System error deleting trash: " + t.getMessage());
1697                 }
1698             }
1699         };
1700         delete.setHeader(Const.X_AUTH_TOKEN, getUserToken());
1701         Scheduler.get().scheduleDeferred(delete);
1702     }
1703 }