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

   1 /*
   2  * Copyright 2011 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above
  13  *      copyright notice, this list of conditions and the following
  14  *      disclaimer in the documentation and/or other materials
  15  *      provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * The views and conclusions contained in the software and
  31  * documentation are those of the authors and should not be
  32  * interpreted as representing official policies, either expressed
  33  * or implied, of GRNET S.A.
  34  */
  35 package gr.grnet.pithos.web.client;
  36
  37 import com.google.gwt.core.client.Scheduler;
  38 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
  39 import com.google.gwt.http.client.Request;
  40 import com.google.gwt.http.client.RequestBuilder;
  41 import com.google.gwt.http.client.RequestCallback;
  42 import com.google.gwt.http.client.RequestException;
  43 import com.google.gwt.http.client.Response;
  44 import com.google.gwt.json.client.JSONArray;
  45 import com.google.gwt.json.client.JSONObject;
  46 import com.google.gwt.json.client.JSONParser;
  47 import com.google.gwt.json.client.JSONString;
  48 import com.google.gwt.json.client.JSONValue;
  49 import com.google.gwt.user.client.Command;
  50 import com.google.gwt.view.client.SelectionChangeEvent;
  51 import com.google.gwt.view.client.SelectionChangeEvent.Handler;
  52 import com.google.gwt.view.client.SingleSelectionModel;
  53 import gr.grnet.pithos.web.client.commands.GetUserCommand;
  54 import gr.grnet.pithos.web.client.foldertree.AccountResource;
  55 import gr.grnet.pithos.web.client.foldertree.File;
  56 import gr.grnet.pithos.web.client.foldertree.Folder;
  57 import gr.grnet.pithos.web.client.foldertree.FolderTreeView;
  58 import gr.grnet.pithos.web.client.foldertree.FolderTreeViewModel;
  59 import gr.grnet.pithos.web.client.foldertree.Resource;
  60 import gr.grnet.pithos.web.client.rest.DeleteRequest;
  61 import gr.grnet.pithos.web.client.rest.GetRequest;
  62 import gr.grnet.pithos.web.client.rest.PutRequest;
  63 import gr.grnet.pithos.web.client.rest.RestException;
  64 import gr.grnet.pithos.web.client.rest.resource.FileResource;
  65 import gr.grnet.pithos.web.client.rest.resource.OtherUserResource;
  66 import gr.grnet.pithos.web.client.rest.resource.RestResource;
  67 import gr.grnet.pithos.web.client.rest.resource.RestResourceWrapper;
  68 import gr.grnet.pithos.web.client.rest.resource.SharedResource;
  69 import gr.grnet.pithos.web.client.rest.resource.TrashResource;
  70 import gr.grnet.pithos.web.client.rest.resource.UserResource;
  71
  72 import gr.grnet.pithos.web.client.tagtree.Tag;
  73 import gr.grnet.pithos.web.client.tagtree.TagTreeView;
  74 import gr.grnet.pithos.web.client.tagtree.TagTreeViewModel;
  75 import java.util.ArrayList;
  76 import java.util.Arrays;
  77 import java.util.Collection;
  78 import java.util.Date;
  79 import java.util.HashMap;
  80 import java.util.Iterator;
  81 import java.util.List;
  82
  83 import com.google.gwt.core.client.EntryPoint;
  84 import com.google.gwt.core.client.GWT;
  85 import com.google.gwt.event.logical.shared.ResizeEvent;
  86 import com.google.gwt.event.logical.shared.ResizeHandler;
  87 import com.google.gwt.event.logical.shared.SelectionEvent;
  88 import com.google.gwt.event.logical.shared.SelectionHandler;
  89 import com.google.gwt.http.client.URL;
  90 import com.google.gwt.i18n.client.DateTimeFormat;
  91 import com.google.gwt.resources.client.ClientBundle;
  92 import com.google.gwt.resources.client.ImageResource;
  93 import com.google.gwt.user.client.Cookies;
  94 import com.google.gwt.user.client.Event;
  95 import com.google.gwt.user.client.History;
  96 import com.google.gwt.user.client.Window;
  97 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  98 import com.google.gwt.user.client.ui.DecoratedTabPanel;
  99 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
 100 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
 101 import com.google.gwt.user.client.ui.RootPanel;
 102 import com.google.gwt.user.client.ui.TabPanel;
 103 import com.google.gwt.user.client.ui.VerticalPanel;
 104 import java.util.Set;
 105
 106 /**
 107  * Entry point classes define <code>onModuleLoad()</code>.
 108  */
 109 public class Pithos implements EntryPoint, ResizeHandler {
 110
 111         /**
 112          * A constant that denotes the completion of an IncrementalCommand.
 113          */
 114         public static final boolean DONE = false;
 115
 116         public static final int VISIBLE_FILE_COUNT = 25;
 117
 118         /**
 119          * Instantiate an application-level image bundle. This object will provide
 120          * programmatic access to all the images needed by widgets.
 121          */
 122         private static Images images = (Images) GWT.create(Images.class);
 123
 124     public String getUsername() {
 125         return username;
 126     }
 127
 128     public void setAccount(AccountResource acct) {
 129         account = acct;
 130     }
 131
 132     public AccountResource getAccount() {
 133         return account;
 134     }
 135
 136     public void updateFolder(Folder f) {
 137         folderTreeView.updateFolder(f);
 138     }
 139
 140     public void updateTag(Tag t) {
 141         tagTreeView.updateTag(t);
 142     }
 143
 144     public void updateTags() {
 145         tagTreeViewModel.initialize(getAllTags());
 146     }
 147
 148     public List<Tag> getAllTags() {
 149         List<Tag> tagList = new ArrayList<Tag>();
 150         for (Folder f : account.getContainers()) {
 151             for (String t : f.getTags()) {
 152                 tagList.add(new Tag(t));
 153             }
 154         }
 155         return tagList;
 156     }
 157
 158     /**
 159          * An aggregate image bundle that pulls together all the images for this
 160          * application into a single bundle.
 161          */
 162         public interface Images extends ClientBundle, TopPanel.Images, StatusPanel.Images, FileMenu.Images, EditMenu.Images, SettingsMenu.Images, FilePropertiesDialog.Images, MessagePanel.Images, FileList.Images, Search.Images, CellTreeView.Images {
 163
 164                 @Source("gr/grnet/pithos/resources/document.png")
 165                 ImageResource folders();
 166
 167                 @Source("gr/grnet/pithos/resources/edit_group_22.png")
 168                 ImageResource groups();
 169
 170                 @Source("gr/grnet/pithos/resources/search.png")
 171                 ImageResource search();
 172         }
 173
 174         /**
 175          * The single Pithos instance.
 176          */
 177         private static Pithos singleton;
 178
 179         /**
 180          * Gets the singleton Pithos instance.
 181          *
 182          * @return the Pithos object
 183          */
 184         public static Pithos get() {
 185                 if (Pithos.singleton == null)
 186                         Pithos.singleton = new Pithos();
 187                 return Pithos.singleton;
 188         }
 189
 190         /**
 191          * The Application Clipboard implementation;
 192          */
 193         private Clipboard clipboard = new Clipboard();
 194
 195         private UserResource currentUserResource;
 196
 197         /**
 198          * The top panel that contains the menu bar.
 199          */
 200         private TopPanel topPanel;
 201
 202         /**
 203          * The panel that contains the various system messages.
 204          */
 205         private MessagePanel messagePanel = new MessagePanel(Pithos.images);
 206
 207         /**
 208          * The bottom panel that contains the status bar.
 209          */
 210         private StatusPanel statusPanel = null;
 211
 212         /**
 213          * The top right panel that displays the logged in user details
 214          */
 215         private UserDetailsPanel userDetailsPanel = new UserDetailsPanel();
 216
 217         /**
 218          * The file list widget.
 219          */
 220         private FileList fileList;
 221
 222         /**
 223          * The tab panel that occupies the right side of the screen.
 224          */
 225         private TabPanel inner = new DecoratedTabPanel(){
 226
 227 //              public void onBrowserEvent(com.google.gwt.user.client.Event event) {
 228 //                      if (DOM.eventGetType(event) == Event.ONCONTEXTMENU){
 229 //                              if(isFileListShowing()){
 230 //                                      getFileList().showContextMenu(event);
 231 //                              }
 232 //                      }
 233 //              };
 234         };
 235
 236
 237         /**
 238          * The split panel that will contain the left and right panels.
 239          */
 240         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 241
 242         /**
 243          * The widget that displays the tree of folders.
 244          */
 245
 246         private CellTreeView treeView = null;
 247         /**
 248          * The currently selected item in the application, for use by the Edit menu
 249          * commands. Potential types are Folder, File, User and Group.
 250          */
 251         private Object currentSelection;
 252
 253
 254         /**
 255          * The WebDAV password of the current user
 256          */
 257         private String webDAVPassword;
 258
 259         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 260
 261     private String username = null;
 262
 263     /**
 264      * The authentication token of the current user.
 265      */
 266     private String token;
 267
 268     private SingleSelectionModel<Folder> folderTreeSelectionModel;
 269     private FolderTreeViewModel folderTreeViewModel;
 270     private FolderTreeView folderTreeView;
 271
 272     private SingleSelectionModel<Tag> tagTreeSelectionModel;
 273     private TagTreeViewModel tagTreeViewModel;
 274     private TagTreeView tagTreeView;
 275
 276     private AccountResource account;
 277
 278         @Override
 279         public void onModuleLoad() {
 280                 // Initialize the singleton before calling the constructors of the
 281                 // various widgets that might call Pithos.get().
 282                 singleton = this;
 283                 if (parseUserCredentials())
 284             initialize();
 285         }
 286
 287     private void initialize() {
 288         topPanel = new TopPanel(Pithos.images);
 289         topPanel.setWidth("100%");
 290
 291         messagePanel.setWidth("100%");
 292         messagePanel.setVisible(false);
 293
 294
 295         // Inner contains the various lists.
 296         inner.sinkEvents(Event.ONCONTEXTMENU);
 297         inner.setAnimationEnabled(true);
 298         inner.getTabBar().addStyleName("pithos-MainTabBar");
 299         inner.getDeckPanel().addStyleName("pithos-MainTabPanelBottom");
 300
 301         inner.setWidth("100%");
 302
 303         inner.addSelectionHandler(new SelectionHandler<Integer>() {
 304
 305             @Override
 306             public void onSelection(SelectionEvent<Integer> event) {
 307                 int tabIndex = event.getSelectedItem();
 308                 switch (tabIndex) {
 309                     case 0:
 310                         fileList.updateCurrentlyShowingStats();
 311                         break;
 312                 }
 313             }
 314         });
 315
 316         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 317         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 318             @Override
 319             public void onSelectionChange(SelectionChangeEvent event) {
 320                 if (folderTreeSelectionModel.getSelectedObject() != null) {
 321                     tagTreeSelectionModel.setSelected(tagTreeSelectionModel.getSelectedObject(), false);
 322                     Folder f = folderTreeSelectionModel.getSelectedObject();
 323                     updateFolder(f);
 324                 }
 325             }
 326         });
 327
 328         folderTreeViewModel = new FolderTreeViewModel(folderTreeSelectionModel);
 329         folderTreeView = new FolderTreeView(folderTreeViewModel);
 330
 331         fileList = new FileList(images, folderTreeView);
 332         inner.add(fileList, createHeaderHTML(AbstractImagePrototype.create(images.folders()), "Files"), true);
 333
 334         tagTreeSelectionModel = new SingleSelectionModel<Tag>();
 335         tagTreeSelectionModel.addSelectionChangeHandler(new Handler() {
 336             @Override
 337             public void onSelectionChange(SelectionChangeEvent event) {
 338                 if (tagTreeSelectionModel.getSelectedObject() != null) {
 339                     folderTreeSelectionModel.setSelected(folderTreeSelectionModel.getSelectedObject(), false);
 340                     Tag t = tagTreeSelectionModel.getSelectedObject();
 341                     updateTag(t);
 342                 }
 343             }
 344         });
 345         tagTreeViewModel = new TagTreeViewModel(tagTreeSelectionModel);
 346         tagTreeView = new TagTreeView(tagTreeViewModel);
 347
 348         VerticalPanel trees = new VerticalPanel();
 349         trees.add(folderTreeView);
 350         trees.add(tagTreeView);
 351         // Add the left and right panels to the split panel.
 352         splitPanel.setLeftWidget(trees);
 353         splitPanel.setRightWidget(inner);
 354         splitPanel.setSplitPosition("25%");
 355         splitPanel.setSize("100%", "100%");
 356         splitPanel.addStyleName("pithos-splitPanel");
 357
 358         // Create a dock panel that will contain the menu bar at the top,
 359         // the shortcuts to the left, the status bar at the bottom and the
 360         // right panel taking the rest.
 361         VerticalPanel outer = new VerticalPanel();
 362         outer.add(topPanel);
 363         outer.add(messagePanel);
 364         outer.add(splitPanel);
 365         statusPanel = new StatusPanel(Pithos.images);
 366         outer.add(statusPanel);
 367         outer.setWidth("100%");
 368         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 369
 370         outer.setSpacing(4);
 371
 372         // Hook the window resize event, so that we can adjust the UI.
 373         Window.addResizeHandler(this);
 374         // Clear out the window's built-in margin, because we want to take
 375         // advantage of the entire client area.
 376         Window.setMargin("0px");
 377         // Finally, add the outer panel to the RootPanel, so that it will be
 378         // displayed.
 379         RootPanel.get().add(outer);
 380         // Call the window resized handler to get the initial sizes setup. Doing
 381         // this in a deferred command causes it to occur after all widgets'
 382         // sizes have been computed by the browser.
 383         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 384
 385             @Override
 386             public void execute() {
 387                 onWindowResized(Window.getClientHeight());
 388             }
 389         });
 390
 391         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 392             @Override
 393             public void execute() {
 394                 fetchAccount();
 395             }
 396         });
 397     }
 398
 399     public void showFiles(Folder f) {
 400         inner.selectTab(0);
 401         if (f.isTrash()) {
 402             fileList.showTrash();
 403         }
 404         else
 405             fileList.showFiles();
 406         Set<File> files = f.getFiles();
 407         showFiles(files);
 408     }
 409
 410     public void showFiles(Set<File> files) {
 411         //Iterator<File> iter = files.iterator();
 412         //fetchFile(iter, files);
 413         fileList.setFiles(new ArrayList<File>(files));
 414     }
 415
 416     private void fetchFile(final Iterator<File> iter, final Set<File> files) {
 417         if (iter.hasNext()) {
 418             File file = iter.next();
 419             String path = file.getUri() + "?format=json";
 420             GetRequest<File> getFile = new GetRequest<File>(File.class, getApiPath(), username, path, file) {
 421                 @Override
 422                 public void onSuccess(File result) {
 423                     fetchFile(iter, files);
 424                 }
 425
 426                 @Override
 427                 public void onError(Throwable t) {
 428                     GWT.log("Error getting file", t);
 429                     if (t instanceof RestException)
 430                         Pithos.get().displayError("Error getting file: " + ((RestException) t).getHttpStatusText());
 431                     else
 432                         Pithos.get().displayError("System error fetching file: " + t.getMessage());
 433                 }
 434             };
 435             getFile.setHeader("X-Auth-Token", "0000");
 436             Scheduler.get().scheduleDeferred(getFile);
 437         }
 438         else
 439             fileList.setFiles(new ArrayList<File>(files));
 440     }
 441
 442     /**
 443          * Parse and store the user credentials to the appropriate fields.
 444          */
 445         private boolean parseUserCredentials() {
 446                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 447                 String cookie = conf.authCookie();
 448                 String auth = Cookies.getCookie(cookie);
 449                 if (auth == null) {
 450                         authenticateUser();
 451             return false;
 452         }
 453         else {
 454             String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 455             if (authSplit.length != 2) {
 456                 authenticateUser();
 457                 return false;
 458             }
 459             else {
 460                 username = authSplit[0];
 461                 token = authSplit[1];
 462                 return true;
 463             }
 464         }
 465         }
 466
 467     /**
 468          * Redirect the user to the login page for authentication.
 469          */
 470         protected void authenticateUser() {
 471                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 472
 473 //        Window.Location.assign(GWT.getModuleBaseURL() + conf.loginUrl() + "?next=" + Window.Location.getHref());
 474         Cookies.setCookie(conf.authCookie(), "test" + conf.cookieSeparator() + "0000");
 475         Window.Location.assign(GWT.getModuleBaseURL() + "pithos.html");
 476         }
 477
 478     private void fetchAccount() {
 479         String path = "?format=json";
 480
 481         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, getApiPath(), username, path) {
 482             @Override
 483             public void onSuccess(AccountResource result) {
 484                 account = result;
 485                 statusPanel.displayStats(account);
 486                 inner.selectTab(0);
 487                 if (account.getContainers().isEmpty())
 488                     createHomeContainers();
 489                 else
 490                     folderTreeViewModel.initialize(account);
 491             }
 492
 493             @Override
 494             public void onError(Throwable t) {
 495                 GWT.log("Error getting account", t);
 496                 if (t instanceof RestException)
 497                     Pithos.get().displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 498                 else
 499                     Pithos.get().displayError("System error fetching user data: " + t.getMessage());
 500             }
 501         };
 502         getAccount.setHeader("X-Auth-Token", token);
 503         Scheduler.get().scheduleDeferred(getAccount);
 504     }
 505
 506     private void createHomeContainers() {
 507         String path = "/pithos";
 508         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 509             @Override
 510             public void onSuccess(Resource result) {
 511                 fetchAccount();
 512             }
 513
 514             @Override
 515             public void onError(Throwable t) {
 516                 GWT.log("Error creating pithos", t);
 517                 if (t instanceof RestException)
 518                     Pithos.get().displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 519                 else
 520                     Pithos.get().displayError("System error Error creating pithos: " + t.getMessage());
 521             }
 522         };
 523         createPithos.setHeader("X-Auth-Token", getToken());
 524         Scheduler.get().scheduleDeferred(createPithos);
 525     }
 526
 527         /**
 528          * Clear the cookie and redirect the user to the logout page.
 529          */
 530         void logout() {
 531                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 532                 String cookie = conf.authCookie();
 533                 String domain = Window.Location.getHostName();
 534                 String path = Window.Location.getPath();
 535                 Cookies.setCookie(cookie, "", null, domain, path, false);
 536         String baseUrl = GWT.getModuleBaseURL();
 537         String homeUrl = baseUrl.substring(0, baseUrl.indexOf(path));
 538                 Window.Location.assign(homeUrl + conf.logoutUrl());
 539         }
 540
 541         /**
 542          * Creates an HTML fragment that places an image & caption together, for use
 543          * in a group header.
 544          *
 545          * @param imageProto an image prototype for an image
 546          * @param caption the group caption
 547          * @return the header HTML fragment
 548          */
 549         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 550                 String captionHTML = "<table class='caption' cellpadding='0' "
 551                 + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 552                 + "</td><td id =" + caption +" class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 553                 + caption + "</b></td></tr></table>";
 554                 return captionHTML;
 555         }
 556
 557         private void onWindowResized(int height) {
 558                 // Adjust the split panel to take up the available room in the window.
 559                 int newHeight = height - splitPanel.getAbsoluteTop() - 44;
 560                 if (newHeight < 1)
 561                         newHeight = 1;
 562                 splitPanel.setHeight("" + newHeight);
 563                 inner.setHeight("" + newHeight);
 564         }
 565
 566         @Override
 567         public void onResize(ResizeEvent event) {
 568                 int height = event.getHeight();
 569                 onWindowResized(height);
 570         }
 571
 572         public boolean isFileListShowing() {
 573                 int tab = inner.getTabBar().getSelectedTab();
 574                 if (tab == 0)
 575                         return true;
 576                 return false;
 577         }
 578
 579         public boolean isSearchResultsShowing() {
 580                 int tab = inner.getTabBar().getSelectedTab();
 581                 if (tab == 2)
 582                         return true;
 583                 return false;
 584         }
 585
 586         /**
 587          * Make the file list visible.
 588          *
 589          * @param update
 590          */
 591         public void showFileList(boolean update) {
 592                 if(update){
 593                         getTreeView().refreshCurrentNode(true);
 594                 }
 595                 else{
 596                         RestResource currentFolder = getTreeView().getSelection();
 597                         if(currentFolder!=null){
 598                                 showFileList(currentFolder);
 599                 }
 600                 }
 601
 602         }
 603
 604         public void showFileList(RestResource r) {
 605                 showFileList(r,true);
 606         }
 607
 608         public void showFileList(RestResource r, boolean clearSelection) {
 609                 RestResource currentFolder = r;
 610                 if(currentFolder!=null){
 611                         List<FileResource> files = null;
 612                         if (currentFolder instanceof RestResourceWrapper) {
 613                                 RestResourceWrapper folder = (RestResourceWrapper) currentFolder;
 614                                 files = folder.getResource().getFiles();
 615                         }
 616                 }
 617                 inner.selectTab(0);
 618         }
 619
 620         /**
 621          * Display the 'loading' indicator.
 622          */
 623         public void showLoadingIndicator(String message, String path) {
 624                 if(path!=null){
 625                         String[] split = path.split("/");
 626                         message = message +" "+URL.decode(split[split.length-1]);
 627                 }
 628                 topPanel.getLoading().show(message);
 629         }
 630
 631         /**
 632          * Hide the 'loading' indicator.
 633          */
 634         public void hideLoadingIndicator() {
 635                 topPanel.getLoading().hide();
 636         }
 637
 638         /**
 639          * A native JavaScript method to reach out to the browser's window and
 640          * invoke its resizeTo() method.
 641          *
 642          * @param x the new width
 643          * @param y the new height
 644          */
 645         public static native void resizeTo(int x, int y) /*-{
 646                 $wnd.resizeTo(x,y);
 647         }-*/;
 648
 649         /**
 650          * A helper method that returns true if the user's list is currently visible
 651          * and false if it is hidden.
 652          *
 653          * @return true if the user list is visible
 654          */
 655         public boolean isUserListVisible() {
 656                 return inner.getTabBar().getSelectedTab() == 1;
 657         }
 658
 659         /**
 660          * Display an error message.
 661          *
 662          * @param msg the message to display
 663          */
 664         public void displayError(String msg) {
 665                 messagePanel.displayError(msg);
 666         }
 667
 668         /**
 669          * Display a warning message.
 670          *
 671          * @param msg the message to display
 672          */
 673         public void displayWarning(String msg) {
 674                 messagePanel.displayWarning(msg);
 675         }
 676
 677         /**
 678          * Display an informational message.
 679          *
 680          * @param msg the message to display
 681          */
 682         public void displayInformation(String msg) {
 683                 messagePanel.displayInformation(msg);
 684         }
 685
 686         /**
 687          * Retrieve the folders.
 688          *
 689          * @return the folders
 690
 691         public Folders getFolders() {
 692                 return folders;
 693         }*/
 694
 695         /**
 696          * Retrieve the currentSelection.
 697          *
 698          * @return the currentSelection
 699          */
 700         public Object getCurrentSelection() {
 701                 return currentSelection;
 702         }
 703
 704         /**
 705          * Modify the currentSelection.
 706          *
 707          * @param newCurrentSelection the currentSelection to set
 708          */
 709         public void setCurrentSelection(Object newCurrentSelection) {
 710                 currentSelection = newCurrentSelection;
 711         }
 712
 713         /**
 714          * Retrieve the fileList.
 715          *
 716          * @return the fileList
 717          */
 718         public FileList getFileList() {
 719                 return fileList;
 720         }
 721
 722         /**
 723          * Retrieve the topPanel.
 724          *
 725          * @return the topPanel
 726          */
 727         TopPanel getTopPanel() {
 728                 return topPanel;
 729         }
 730
 731         /**
 732          * Retrieve the clipboard.
 733          *
 734          * @return the clipboard
 735          */
 736         public Clipboard getClipboard() {
 737                 return clipboard;
 738         }
 739
 740         public StatusPanel getStatusPanel() {
 741                 return statusPanel;
 742         }
 743
 744         /**
 745          * Retrieve the userDetailsPanel.
 746          *
 747          * @return the userDetailsPanel
 748          */
 749         public UserDetailsPanel getUserDetailsPanel() {
 750                 return userDetailsPanel;
 751         }
 752
 753
 754
 755         public String getToken() {
 756                 return token;
 757         }
 758
 759         public String getWebDAVPassword() {
 760                 return webDAVPassword;
 761         }
 762
 763         /**
 764          * Retrieve the currentUserResource.
 765          *
 766          * @return the currentUserResource
 767          */
 768         public UserResource getCurrentUserResource() {
 769                 return currentUserResource;
 770         }
 771
 772         /**
 773          * Modify the currentUserResource.
 774          *
 775          * @param newUser the new currentUserResource
 776          */
 777         public void setCurrentUserResource(UserResource newUser) {
 778                 currentUserResource = newUser;
 779         }
 780
 781         public static native void preventIESelection() /*-{
 782                 $doc.body.onselectstart = function () { return false; };
 783         }-*/;
 784
 785         public static native void enableIESelection() /*-{
 786                 if ($doc.body.onselectstart != null)
 787                 $doc.body.onselectstart = null;
 788         }-*/;
 789
 790         /**
 791          * @return the absolute path of the API root URL
 792          */
 793         public String getApiPath() {
 794                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 795                 return conf.apiPath();
 796         }
 797
 798         /**
 799          * Convert server date to local time according to browser timezone
 800          * and format it according to localized pattern.
 801          * Time is always formatted to 24hr format.
 802          * NB: This assumes that server runs in UTC timezone. Otherwise
 803          * we would need to adjust for server time offset as well.
 804          *
 805          * @param date
 806          * @return String
 807          */
 808         public static String formatLocalDateTime(Date date) {
 809                 Date convertedDate = new Date(date.getTime() - date.getTimezoneOffset());
 810                 final DateTimeFormat dateFormatter = DateTimeFormat.getShortDateFormat();
 811                 final DateTimeFormat timeFormatter = DateTimeFormat.getFormat("HH:mm");
 812                 String datePart = dateFormatter.format(convertedDate);
 813                 String timePart = timeFormatter.format(convertedDate);
 814                 return datePart + " " + timePart;
 815         }
 816
 817         /**
 818          * History support for folder navigation
 819          * adds a new browser history entry
 820          *
 821          * @param key
 822          */
 823         public void updateHistory(String key){
 824 //              Replace any whitespace of the initial string to "+"
 825 //              String result = key.replaceAll("\\s","+");
 826 //              Add a new browser history entry.
 827 //              History.newItem(result);
 828                 History.newItem(key);
 829         }
 830
 831         /**
 832          * This method examines the token input and add a "/" at the end in case it's omitted.
 833          * This happens only in Files/trash/, Files/shared/, Files/others.
 834          *
 835          * @param tokenInput
 836          * @return the formated token with a "/" at the end or the same tokenInput parameter
 837          */
 838
 839         private String handleSpecialFolderNames(String tokenInput){
 840                 List<String> pathsToCheck = Arrays.asList("Files/trash", "Files/shared", "Files/others");
 841                 if(pathsToCheck.contains(tokenInput))
 842                         return tokenInput + "/";
 843                 return tokenInput;
 844
 845         }
 846
 847         /**
 848          * Reject illegal resource names, like '.' or '..' or slashes '/'.
 849          */
 850         static boolean isValidResourceName(String name) {
 851                 if (".".equals(name) || "..".equals(name) || name.contains("/"))
 852                         return false;
 853                 return true;
 854         }
 855
 856         public void putUserToMap(String _userName, String _userFullName){
 857                 userFullNameMap.put(_userName, _userFullName);
 858         }
 859
 860         public String findUserFullName(String _userName){
 861                 return userFullNameMap.get(_userName);
 862         }
 863         public String getUserFullName(String _userName) {
 864
 865         if (Pithos.get().findUserFullName(_userName) == null)
 866                 //if there is no userFullName found then the map fills with the given _userName,
 867                 //so userFullName = _userName
 868                 Pithos.get().putUserToMap(_userName, _userName);
 869         else if(Pithos.get().findUserFullName(_userName).indexOf('@') != -1){
 870                 //if the userFullName = _userName the GetUserCommand updates the userFullName in the map
 871                 GetUserCommand guc = new GetUserCommand(_userName);
 872                 guc.execute();
 873         }
 874         return Pithos.get().findUserFullName(_userName);
 875         }
 876         /**
 877          * Retrieve the treeView.
 878          *
 879          * @return the treeView
 880          */
 881         public CellTreeView getTreeView() {
 882                 return treeView;
 883         }
 884
 885         public void onResourceUpdate(RestResource resource,boolean clearSelection){
 886                 if(resource instanceof RestResourceWrapper || resource instanceof OtherUserResource || resource instanceof TrashResource || resource instanceof SharedResource){
 887                         if(getTreeView().getSelection()!=null&&getTreeView().getSelection().getUri().equals(resource.getUri()))
 888                                 showFileList(resource,clearSelection);
 889                 }
 890
 891         }
 892
 893     public void deleteFolder(final Folder folder) {
 894         String path = getApiPath() + getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + folder.getPrefix();
 895         RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
 896         builder.setHeader("If-Modified-Since", "0");
 897         builder.setHeader("X-Auth-Token", getToken());
 898         try {
 899             builder.sendRequest("", new RequestCallback() {
 900                 @Override
 901                 public void onResponseReceived(Request request, Response response) {
 902                     if (response.getStatusCode() == Response.SC_OK) {
 903                         JSONValue json = JSONParser.parseStrict(response.getText());
 904                         JSONArray array = json.isArray();
 905                         int i = 0;
 906                         if (array != null) {
 907                             deleteObject(folder, i, array);
 908                         }
 909                     }
 910                 }
 911
 912                 @Override
 913                 public void onError(Request request, Throwable exception) {
 914                     Pithos.get().displayError("System error unable to delete folder: " + exception.getMessage());
 915                 }
 916             });
 917         }
 918         catch (RequestException e) {
 919         }
 920     }
 921
 922     public void deleteObject(final Folder folder, final int i, final JSONArray array) {
 923         if (i < array.size()) {
 924             JSONObject o = array.get(i).isObject();
 925             if (o != null && !o.containsKey("subdir")) {
 926                 JSONString name = o.get("name").isString();
 927                 String path = "/" + folder.getContainer() + "/" + name.stringValue();
 928                 DeleteRequest delete = new DeleteRequest(getApiPath(), getUsername(), path) {
 929                     @Override
 930                     public void onSuccess(Resource result) {
 931                         deleteObject(folder, i + 1, array);
 932                     }
 933
 934                     @Override
 935                     public void onError(Throwable t) {
 936                         GWT.log("", t);
 937                         Pithos.get().displayError("System error unable to delete folder: " + t.getMessage());
 938                     }
 939                 };
 940                 delete.setHeader("X-Auth-Token", getToken());
 941                 Scheduler.get().scheduleDeferred(delete);
 942             }
 943             else {
 944                 String subdir = o.get("subdir").isString().stringValue();
 945                 subdir = subdir.substring(0, subdir.length() - 1);
 946                 String path = getApiPath() + getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + subdir;
 947                 RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
 948                 builder.setHeader("If-Modified-Since", "0");
 949                 builder.setHeader("X-Auth-Token", getToken());
 950                 try {
 951                     builder.sendRequest("", new RequestCallback() {
 952                         @Override
 953                         public void onResponseReceived(Request request, Response response) {
 954                             if (response.getStatusCode() == Response.SC_OK) {
 955                                 JSONValue json = JSONParser.parseStrict(response.getText());
 956                                 JSONArray array2 = json.isArray();
 957                                 if (array2 != null) {
 958                                     int l = array.size();
 959                                     for (int j=0; j<array2.size(); j++) {
 960                                         array.set(l++, array2.get(j));
 961                                     }
 962                                 }
 963                                 deleteObject(folder, i + 1, array);
 964                             }
 965                         }
 966
 967                         @Override
 968                         public void onError(Request request, Throwable exception) {
 969                             Pithos.get().displayError("System error unable to delete folder: " + exception.getMessage());
 970                         }
 971                     });
 972                 }
 973                 catch (RequestException e) {
 974                 }
 975             }
 976         }
 977         else {
 978             String path = folder.getUri();
 979             DeleteRequest deleteFolder = new DeleteRequest(getApiPath(), getUsername(), path) {
 980                 @Override
 981                 public void onSuccess(Resource result) {
 982                     updateFolder(folder.getParent());
 983                 }
 984
 985                 @Override
 986                 public void onError(Throwable t) {
 987                     GWT.log("", t);
 988                     if (t instanceof RestException) {
 989                         displayError("Unable to delete folder: "+((RestException) t).getHttpStatusText());
 990                     }
 991                     else
 992                         Pithos.get().displayError("System error unable to delete folder: " + t.getMessage());
 993                 }
 994             };
 995             deleteFolder.setHeader("X-Auth-Token", getToken());
 996             Scheduler.get().scheduleDeferred(deleteFolder);
 997         }
 998     }
 999
1000     public FolderTreeView getFolderTreeView() {
1001         return folderTreeView;
1002     }
1003
1004     public void copyFiles(final Iterator<File> iter, final String targetUri, final Command callback) {
1005         if (iter.hasNext()) {
1006             File file = iter.next();
1007             String path = targetUri + "/" + file.getName();
1008             PutRequest copyFile = new PutRequest(getApiPath(), getUsername(), path) {
1009                 @Override
1010                 public void onSuccess(Resource result) {
1011                     copyFiles(iter, targetUri, callback);
1012                 }
1013
1014                 @Override
1015                 public void onError(Throwable t) {
1016                     GWT.log("", t);
1017                     if (t instanceof RestException) {
1018                         Pithos.get().displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
1019                     }
1020                     else
1021                         Pithos.get().displayError("System error unable to copy file: "+t.getMessage());
1022                 }
1023             };
1024             copyFile.setHeader("X-Auth-Token", getToken());
1025             copyFile.setHeader("X-Copy-From", file.getUri());
1026             Scheduler.get().scheduleDeferred(copyFile);
1027         }
1028         else  if (callback != null) {
1029             callback.execute();
1030         }
1031     }
1032
1033     public void copySubfolders(final Iterator<Folder> iter, final String targetUri, final Command callback) {
1034         if (iter.hasNext()) {
1035             final Folder f = iter.next();
1036             copyFolder(f, targetUri, callback);
1037         }
1038         else  if (callback != null) {
1039             callback.execute();
1040         }
1041     }
1042
1043     public void copyFolder(final Folder f, final String targetUri, final Command callback) {
1044         String path = targetUri + "/" + f.getName();
1045         PutRequest createFolder = new PutRequest(getApiPath(), getUsername(), path) {
1046             @Override
1047             public void onSuccess(Resource result) {
1048                 Iterator<File> iter = f.getFiles().iterator();
1049                 copyFiles(iter, targetUri + "/" + f.getName(), new Command() {
1050                     @Override
1051                     public void execute() {
1052                         Iterator<Folder> iterf = f.getSubfolders().iterator();
1053                         copySubfolders(iterf, targetUri + "/" + f.getName(), new Command() {
1054                             @Override
1055                             public void execute() {
1056                                 callback.execute();
1057                             }
1058                         });
1059                     }
1060                 });
1061             }
1062
1063             @Override
1064             public void onError(Throwable t) {
1065                 GWT.log("", t);
1066                 if (t instanceof RestException) {
1067                     displayError("Unable to create folder:" + ((RestException) t).getHttpStatusText());
1068                 }
1069                 else
1070                     displayError("System error creating folder:" + t.getMessage());
1071             }
1072         };
1073         createFolder.setHeader("X-Auth-Token", getToken());
1074         createFolder.setHeader("Accept", "*/*");
1075         createFolder.setHeader("Content-Length", "0");
1076         createFolder.setHeader("Content-Type", "application/folder");
1077         Scheduler.get().scheduleDeferred(createFolder);
1078     }
1079 }