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 gr.grnet.pithos.web.client.commands.UploadFileCommand;
  38 import gr.grnet.pithos.web.client.foldertree.AccountResource;
  39 import gr.grnet.pithos.web.client.foldertree.File;
  40 import gr.grnet.pithos.web.client.foldertree.Folder;
  41 import gr.grnet.pithos.web.client.foldertree.FolderTreeView;
  42 import gr.grnet.pithos.web.client.foldertree.FolderTreeViewModel;
  43 import gr.grnet.pithos.web.client.foldertree.Resource;
  44 import gr.grnet.pithos.web.client.grouptree.GroupTreeView;
  45 import gr.grnet.pithos.web.client.grouptree.GroupTreeViewModel;
  46 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeView;
  47 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeViewModel;
  48 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeView;
  49 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeViewModel;
  50 import gr.grnet.pithos.web.client.rest.DeleteRequest;
  51 import gr.grnet.pithos.web.client.rest.GetRequest;
  52 import gr.grnet.pithos.web.client.rest.PutRequest;
  53 import gr.grnet.pithos.web.client.rest.RestException;
  54 import gr.grnet.pithos.web.client.tagtree.Tag;
  55 import gr.grnet.pithos.web.client.tagtree.TagTreeView;
  56 import gr.grnet.pithos.web.client.tagtree.TagTreeViewModel;
  57
  58 import java.util.ArrayList;
  59 import java.util.HashMap;
  60 import java.util.Iterator;
  61 import java.util.List;
  62 import java.util.Set;
  63
  64 import com.google.gwt.core.client.EntryPoint;
  65 import com.google.gwt.core.client.GWT;
  66 import com.google.gwt.core.client.Scheduler;
  67 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
  68 import com.google.gwt.event.dom.client.ClickEvent;
  69 import com.google.gwt.event.dom.client.ClickHandler;
  70 import com.google.gwt.event.logical.shared.ResizeEvent;
  71 import com.google.gwt.event.logical.shared.ResizeHandler;
  72 import com.google.gwt.http.client.Request;
  73 import com.google.gwt.http.client.RequestBuilder;
  74 import com.google.gwt.http.client.RequestCallback;
  75 import com.google.gwt.http.client.RequestException;
  76 import com.google.gwt.http.client.Response;
  77 import com.google.gwt.json.client.JSONArray;
  78 import com.google.gwt.json.client.JSONObject;
  79 import com.google.gwt.json.client.JSONParser;
  80 import com.google.gwt.json.client.JSONString;
  81 import com.google.gwt.json.client.JSONValue;
  82 import com.google.gwt.resources.client.ImageResource;
  83 import com.google.gwt.user.client.Command;
  84 import com.google.gwt.user.client.Cookies;
  85 import com.google.gwt.user.client.Event;
  86 import com.google.gwt.user.client.History;
  87 import com.google.gwt.user.client.Window;
  88 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  89 import com.google.gwt.user.client.ui.Button;
  90 import com.google.gwt.user.client.ui.HTML;
  91 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  92 import com.google.gwt.user.client.ui.HasVerticalAlignment;
  93 import com.google.gwt.user.client.ui.HorizontalPanel;
  94 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
  95 import com.google.gwt.user.client.ui.Image;
  96 import com.google.gwt.user.client.ui.PushButton;
  97 import com.google.gwt.user.client.ui.RootPanel;
  98 import com.google.gwt.user.client.ui.VerticalPanel;
  99 import com.google.gwt.view.client.SelectionChangeEvent;
 100 import com.google.gwt.view.client.SelectionChangeEvent.Handler;
 101 import com.google.gwt.view.client.SingleSelectionModel;
 102
 103 /**
 104  * Entry point classes define <code>onModuleLoad()</code>.
 105  */
 106 public class Pithos implements EntryPoint, ResizeHandler {
 107
 108         public static final String HOME_CONTAINER = "pithos";
 109
 110         public static final String TRASH_CONTAINER = "trash";
 111
 112         /**
 113          * Instantiate an application-level image bundle. This object will provide
 114          * programmatic access to all the images needed by widgets.
 115          */
 116         private static Images images = (Images) GWT.create(Images.class);
 117
 118     public String getUsername() {
 119         return username;
 120     }
 121
 122     public void setAccount(AccountResource acct) {
 123         account = acct;
 124     }
 125
 126     public AccountResource getAccount() {
 127         return account;
 128     }
 129
 130     public void updateFolder(Folder f, boolean showfiles, Command callback) {
 131         folderTreeView.updateFolder(f, showfiles, callback);
 132     }
 133
 134     public void updateSharedFolder(Folder f, boolean showfiles) {
 135         mysharedTreeView.updateFolder(f, showfiles);
 136     }
 137
 138     public void updateOtherSharedFolder(Folder f, boolean showfiles) {
 139         otherSharedTreeView.updateFolder(f, showfiles);
 140     }
 141
 142     public void updateTag(Tag t) {
 143         tagTreeView.updateTag(t);
 144     }
 145
 146     public void updateTags() {
 147         tagTreeViewModel.initialize(getAllTags());
 148     }
 149
 150     public List<Tag> getAllTags() {
 151         List<Tag> tagList = new ArrayList<Tag>();
 152         for (Folder f : account.getContainers()) {
 153             for (String t : f.getTags()) {
 154                 tagList.add(new Tag(t));
 155             }
 156         }
 157         return tagList;
 158     }
 159
 160     public MysharedTreeView getMySharedTreeView() {
 161         return mysharedTreeView;
 162     }
 163
 164     /**
 165          * An aggregate image bundle that pulls together all the images for this
 166          * application into a single bundle.
 167          */
 168         public interface Images extends TopPanel.Images, FileList.Images {
 169
 170                 @Source("gr/grnet/pithos/resources/document.png")
 171                 ImageResource folders();
 172
 173                 @Source("gr/grnet/pithos/resources/edit_group_22.png")
 174                 ImageResource groups();
 175
 176                 @Source("gr/grnet/pithos/resources/search.png")
 177                 ImageResource search();
 178         }
 179
 180         /**
 181          * The Application Clipboard implementation;
 182          */
 183         private Clipboard clipboard = new Clipboard();
 184
 185         /**
 186          * The top panel that contains the menu bar.
 187          */
 188         private TopPanel topPanel;
 189
 190         /**
 191          * The panel that contains the various system messages.
 192          */
 193         private MessagePanel messagePanel = new MessagePanel(Pithos.images);
 194
 195         /**
 196          * The bottom panel that contains the status bar.
 197          */
 198         private StatusPanel statusPanel = null;
 199
 200         /**
 201          * The file list widget.
 202          */
 203         private FileList fileList;
 204
 205         /**
 206          * The tab panel that occupies the right side of the screen.
 207          */
 208         private VerticalPanel inner = new VerticalPanel();
 209
 210
 211         /**
 212          * The split panel that will contain the left and right panels.
 213          */
 214         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 215
 216         /**
 217          * The currently selected item in the application, for use by the Edit menu
 218          * commands. Potential types are Folder, File, User and Group.
 219          */
 220         private Object currentSelection;
 221
 222
 223         /**
 224          * The WebDAV password of the current user
 225          */
 226         private String webDAVPassword;
 227
 228         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 229
 230     private String username = null;
 231
 232     /**
 233      * The authentication token of the current user.
 234      */
 235     private String token;
 236
 237     protected SingleSelectionModel<Folder> folderTreeSelectionModel;
 238     protected FolderTreeViewModel folderTreeViewModel;
 239     protected FolderTreeView folderTreeView;
 240
 241     protected SingleSelectionModel<Folder> mysharedTreeSelectionModel;
 242     private MysharedTreeViewModel mysharedTreeViewModel;
 243     private MysharedTreeView mysharedTreeView;
 244
 245     protected SingleSelectionModel<Folder> otherSharedTreeSelectionModel;
 246     private OtherSharedTreeViewModel otherSharedTreeViewModel;
 247     private OtherSharedTreeView otherSharedTreeView;
 248
 249     protected SingleSelectionModel<Tag> tagTreeSelectionModel;
 250     private TagTreeViewModel tagTreeViewModel;
 251     private TagTreeView tagTreeView;
 252
 253     protected SingleSelectionModel<String> groupTreeSelectionModel;
 254     private GroupTreeViewModel groupTreeViewModel;
 255     private GroupTreeView groupTreeView;
 256
 257     protected AccountResource account;
 258
 259     private Folder trash;
 260
 261     @SuppressWarnings("rawtypes")
 262         private List<SingleSelectionModel> selectionModels = new ArrayList<SingleSelectionModel>();
 263
 264         @Override
 265         public void onModuleLoad() {
 266                 if (parseUserCredentials())
 267             initialize();
 268         }
 269
 270     private void initialize() {
 271         VerticalPanel outer = new VerticalPanel();
 272         outer.setWidth("100%");
 273
 274         topPanel = new TopPanel(this, Pithos.images);
 275         topPanel.setWidth("100%");
 276         outer.add(topPanel);
 277
 278         messagePanel.setWidth("100%");
 279         messagePanel.setVisible(false);
 280         outer.add(messagePanel);
 281         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 282
 283
 284         // Inner contains the various lists.
 285         inner.sinkEvents(Event.ONCONTEXTMENU);
 286         inner.setWidth("100%");
 287
 288         HorizontalPanel rightside = new HorizontalPanel();
 289         rightside.addStyleName("pithos-rightSide");
 290         rightside.setSpacing(5);
 291
 292         PushButton parentButton = new PushButton(new Image(images.asc()), new ClickHandler() {
 293             @Override
 294             public void onClick(@SuppressWarnings("unused") ClickEvent event) {
 295
 296             }
 297         });
 298         parentButton.addStyleName("pithos-parentButton");
 299         rightside.add(parentButton);
 300
 301         HTML folderStatistics = new HTML("5 Files (size: 1.1GB)");
 302         folderStatistics.addStyleName("pithos-folderStatistics");
 303         rightside.add(folderStatistics);
 304         inner.add(rightside);
 305         inner.setCellHorizontalAlignment(rightside, HasHorizontalAlignment.ALIGN_RIGHT);
 306         inner.setCellVerticalAlignment(rightside, HasVerticalAlignment.ALIGN_MIDDLE);
 307         inner.setCellHeight(rightside, "60px");
 308
 309         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 310         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 311             @Override
 312             public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
 313                 if (folderTreeSelectionModel.getSelectedObject() != null) {
 314                     deselectOthers(folderTreeSelectionModel);
 315                     Folder f = folderTreeSelectionModel.getSelectedObject();
 316                     updateFolder(f, true, null);
 317                 }
 318             }
 319         });
 320         selectionModels.add(folderTreeSelectionModel);
 321
 322         folderTreeViewModel = new FolderTreeViewModel(this, folderTreeSelectionModel);
 323         folderTreeView = new FolderTreeView(folderTreeViewModel);
 324
 325         fileList = new FileList(this, images, folderTreeView);
 326         inner.add(fileList);
 327
 328         mysharedTreeSelectionModel = new SingleSelectionModel<Folder>();
 329         mysharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
 330             @Override
 331             public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
 332                 if (mysharedTreeSelectionModel.getSelectedObject() != null) {
 333                     deselectOthers(mysharedTreeSelectionModel);
 334                     updateSharedFolder(mysharedTreeSelectionModel.getSelectedObject(), true);
 335                 }
 336             }
 337         });
 338         selectionModels.add(mysharedTreeSelectionModel);
 339         mysharedTreeViewModel = new MysharedTreeViewModel(this, mysharedTreeSelectionModel);
 340         mysharedTreeView = new MysharedTreeView(mysharedTreeViewModel);
 341
 342         otherSharedTreeSelectionModel = new SingleSelectionModel<Folder>();
 343         otherSharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
 344             @Override
 345             public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
 346                 if (otherSharedTreeSelectionModel.getSelectedObject() != null) {
 347                     deselectOthers(otherSharedTreeSelectionModel);
 348                     updateOtherSharedFolder(otherSharedTreeSelectionModel.getSelectedObject(), true);
 349                 }
 350             }
 351         });
 352         selectionModels.add(otherSharedTreeSelectionModel);
 353         otherSharedTreeViewModel = new OtherSharedTreeViewModel(this, otherSharedTreeSelectionModel);
 354         otherSharedTreeView = new OtherSharedTreeView(otherSharedTreeViewModel);
 355
 356         tagTreeSelectionModel = new SingleSelectionModel<Tag>();
 357         tagTreeSelectionModel.addSelectionChangeHandler(new Handler() {
 358             @Override
 359             public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
 360                 if (tagTreeSelectionModel.getSelectedObject() != null) {
 361                     deselectOthers(tagTreeSelectionModel);
 362                     Tag t = tagTreeSelectionModel.getSelectedObject();
 363                     updateTag(t);
 364                 }
 365             }
 366         });
 367         selectionModels.add(tagTreeSelectionModel);
 368         tagTreeViewModel = new TagTreeViewModel(this, tagTreeSelectionModel);
 369         tagTreeView = new TagTreeView(tagTreeViewModel);
 370
 371         groupTreeSelectionModel = new SingleSelectionModel<String>();
 372         groupTreeSelectionModel.addSelectionChangeHandler(new Handler() {
 373             @Override
 374             public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
 375                 if (groupTreeSelectionModel.getSelectedObject() != null) {
 376                     deselectOthers(groupTreeSelectionModel);
 377                 }
 378             }
 379         });
 380         selectionModels.add(groupTreeSelectionModel);
 381         groupTreeViewModel = new GroupTreeViewModel(this, groupTreeSelectionModel);
 382         groupTreeView = new GroupTreeView(groupTreeViewModel);
 383
 384         VerticalPanel trees = new VerticalPanel();
 385
 386         Button upload = new Button("Upload File", new ClickHandler() {
 387             @Override
 388             public void onClick(@SuppressWarnings("unused") ClickEvent event) {
 389                 new UploadFileCommand(Pithos.this, null, folderTreeView.getSelection()).execute();
 390             }
 391         });
 392         upload.addStyleName("pithos-uploadButton");
 393         trees.add(upload);
 394
 395         HorizontalPanel treeHeader = new HorizontalPanel();
 396         treeHeader.addStyleName("pithos-treeHeader");
 397         treeHeader.add(new HTML("Total Files: 6 | Used: 2.1 of 50 GB (4.2%)"));
 398         trees.add(treeHeader);
 399
 400         trees.add(folderTreeView);
 401         trees.add(mysharedTreeView);
 402         trees.add(otherSharedTreeView);
 403 //        trees.add(tagTreeView);
 404         trees.add(groupTreeView);
 405         // Add the left and right panels to the split panel.
 406         splitPanel.setLeftWidget(trees);
 407         splitPanel.setRightWidget(inner);
 408         splitPanel.setSplitPosition("25%");
 409         splitPanel.setSize("100%", "100%");
 410         splitPanel.addStyleName("pithos-splitPanel");
 411         outer.add(splitPanel);
 412
 413         statusPanel = new StatusPanel();
 414         outer.add(statusPanel);
 415
 416
 417         // Hook the window resize event, so that we can adjust the UI.
 418         Window.addResizeHandler(this);
 419         // Clear out the window's built-in margin, because we want to take
 420         // advantage of the entire client area.
 421         Window.setMargin("0px");
 422         // Finally, add the outer panel to the RootPanel, so that it will be
 423         // displayed.
 424         RootPanel.get().add(outer);
 425         // Call the window resized handler to get the initial sizes setup. Doing
 426         // this in a deferred command causes it to occur after all widgets'
 427         // sizes have been computed by the browser.
 428         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 429
 430             @Override
 431             public void execute() {
 432                 onWindowResized(Window.getClientHeight());
 433             }
 434         });
 435
 436         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 437             @Override
 438             public void execute() {
 439                 fetchAccount();
 440             }
 441         });
 442     }
 443
 444     @SuppressWarnings({ "rawtypes", "unchecked" })
 445         public void deselectOthers(SingleSelectionModel model) {
 446         for (SingleSelectionModel s : selectionModels)
 447             if (!s.equals(model))
 448                 s.setSelected(s.getSelectedObject(), false);
 449     }
 450
 451     public void showFiles(Folder f) {
 452         Set<File> files = f.getFiles();
 453         showFiles(files);
 454     }
 455
 456     public void showFiles(Set<File> files) {
 457         //Iterator<File> iter = files.iterator();
 458         //fetchFile(iter, files);
 459         fileList.setFiles(new ArrayList<File>(files));
 460     }
 461
 462     protected void fetchFile(final Iterator<File> iter, final Set<File> files) {
 463         if (iter.hasNext()) {
 464             File file = iter.next();
 465             String path = file.getUri() + "?format=json";
 466             GetRequest<File> getFile = new GetRequest<File>(File.class, getApiPath(), username, path, file) {
 467                 @Override
 468                 public void onSuccess(@SuppressWarnings("unused") File _result) {
 469                     fetchFile(iter, files);
 470                 }
 471
 472                 @Override
 473                 public void onError(Throwable t) {
 474                     GWT.log("Error getting file", t);
 475                     if (t instanceof RestException)
 476                         displayError("Error getting file: " + ((RestException) t).getHttpStatusText());
 477                     else
 478                         displayError("System error fetching file: " + t.getMessage());
 479                 }
 480             };
 481             getFile.setHeader("X-Auth-Token", "0000");
 482             Scheduler.get().scheduleDeferred(getFile);
 483         }
 484         else
 485             fileList.setFiles(new ArrayList<File>(files));
 486     }
 487
 488     /**
 489          * Parse and store the user credentials to the appropriate fields.
 490          */
 491         private boolean parseUserCredentials() {
 492         username = Window.Location.getParameter("user");
 493         token = Window.Location.getParameter("token");
 494         Configuration conf = (Configuration) GWT.create(Configuration.class);
 495         if (username == null || username.length() == 0 || token == null || token.length() == 0) {
 496             String cookie = conf.authCookie();
 497             String auth = Cookies.getCookie(cookie);
 498             if (auth == null) {
 499                 authenticateUser();
 500                 return false;
 501             }
 502                         String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 503                         if (authSplit.length != 2) {
 504                             authenticateUser();
 505                             return false;
 506                         }
 507                         username = authSplit[0];
 508                         token = authSplit[1];
 509                         return true;
 510         }
 511                 Cookies.setCookie(conf.authCookie(), username + conf.cookieSeparator() + token);
 512                 return true;
 513     }
 514
 515     /**
 516          * Redirect the user to the login page for authentication.
 517          */
 518         protected void authenticateUser() {
 519                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 520         Window.Location.assign(Window.Location.getHost() + conf.loginUrl() + "?next=" + Window.Location.getHref());
 521         }
 522
 523         protected void fetchAccount() {
 524         String path = "?format=json";
 525
 526         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, getApiPath(), username, path) {
 527             @Override
 528             public void onSuccess(AccountResource _result) {
 529                 account = _result;
 530                 if (!account.hasHomeContainer())
 531                     createHomeContainer(account);
 532                 else if (!account.hasTrashContainer())
 533                         createTrashContainer();
 534                 else {
 535                         for (Folder f : account.getContainers())
 536                                 if (f.getName().equals(Pithos.TRASH_CONTAINER)) {
 537                                         trash = f;
 538                                         break;
 539                                 }
 540                     folderTreeViewModel.initialize(account);
 541                 }
 542             }
 543
 544             @Override
 545             public void onError(Throwable t) {
 546                 GWT.log("Error getting account", t);
 547                 if (t instanceof RestException)
 548                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 549                 else
 550                     displayError("System error fetching user data: " + t.getMessage());
 551             }
 552         };
 553         getAccount.setHeader("X-Auth-Token", token);
 554         Scheduler.get().scheduleDeferred(getAccount);
 555     }
 556
 557     protected void createHomeContainer(final AccountResource account) {
 558         String path = "/" + Pithos.HOME_CONTAINER;
 559         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 560             @Override
 561             public void onSuccess(@SuppressWarnings("unused") Resource result) {
 562                 if (!account.hasTrashContainer())
 563                         createTrashContainer();
 564                 else
 565                         fetchAccount();
 566             }
 567
 568             @Override
 569             public void onError(Throwable t) {
 570                 GWT.log("Error creating pithos", t);
 571                 if (t instanceof RestException)
 572                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 573                 else
 574                     displayError("System error Error creating pithos: " + t.getMessage());
 575             }
 576         };
 577         createPithos.setHeader("X-Auth-Token", getToken());
 578         Scheduler.get().scheduleDeferred(createPithos);
 579     }
 580
 581     protected void createTrashContainer() {
 582         String path = "/" + Pithos.TRASH_CONTAINER;
 583         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 584             @Override
 585             public void onSuccess(@SuppressWarnings("unused") Resource result) {
 586                         fetchAccount();
 587             }
 588
 589             @Override
 590             public void onError(Throwable t) {
 591                 GWT.log("Error creating pithos", t);
 592                 if (t instanceof RestException)
 593                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 594                 else
 595                     displayError("System error Error creating pithos: " + t.getMessage());
 596             }
 597         };
 598         createPithos.setHeader("X-Auth-Token", getToken());
 599         Scheduler.get().scheduleDeferred(createPithos);
 600     }
 601
 602     /**
 603          * Creates an HTML fragment that places an image & caption together, for use
 604          * in a group header.
 605          *
 606          * @param imageProto an image prototype for an image
 607          * @param caption the group caption
 608          * @return the header HTML fragment
 609          */
 610         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 611                 String captionHTML = "<table class='caption' cellpadding='0' "
 612                 + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 613                 + "</td><td id =" + caption +" class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 614                 + caption + "</b></td></tr></table>";
 615                 return captionHTML;
 616         }
 617
 618         protected void onWindowResized(int height) {
 619                 // Adjust the split panel to take up the available room in the window.
 620                 int newHeight = height - splitPanel.getAbsoluteTop() - 60;
 621                 if (newHeight < 1)
 622                         newHeight = 1;
 623                 splitPanel.setHeight("" + newHeight);
 624                 inner.setHeight("" + newHeight);
 625         }
 626
 627         @Override
 628         public void onResize(ResizeEvent event) {
 629                 int height = event.getHeight();
 630                 onWindowResized(height);
 631         }
 632
 633         /**
 634          * Display an error message.
 635          *
 636          * @param msg the message to display
 637          */
 638         public void displayError(String msg) {
 639                 messagePanel.displayError(msg);
 640         }
 641
 642         /**
 643          * Display a warning message.
 644          *
 645          * @param msg the message to display
 646          */
 647         public void displayWarning(String msg) {
 648                 messagePanel.displayWarning(msg);
 649         }
 650
 651         /**
 652          * Display an informational message.
 653          *
 654          * @param msg the message to display
 655          */
 656         public void displayInformation(String msg) {
 657                 messagePanel.displayInformation(msg);
 658         }
 659
 660         /**
 661          * Retrieve the fileList.
 662          *
 663          * @return the fileList
 664          */
 665         public FileList getFileList() {
 666                 return fileList;
 667         }
 668
 669         /**
 670          * Retrieve the topPanel.
 671          *
 672          * @return the topPanel
 673          */
 674         TopPanel getTopPanel() {
 675                 return topPanel;
 676         }
 677
 678         /**
 679          * Retrieve the clipboard.
 680          *
 681          * @return the clipboard
 682          */
 683         public Clipboard getClipboard() {
 684                 return clipboard;
 685         }
 686
 687         public StatusPanel getStatusPanel() {
 688                 return statusPanel;
 689         }
 690
 691         public String getToken() {
 692                 return token;
 693         }
 694
 695         public String getWebDAVPassword() {
 696                 return webDAVPassword;
 697         }
 698
 699         public static native void preventIESelection() /*-{
 700                 $doc.body.onselectstart = function () { return false; };
 701         }-*/;
 702
 703         public static native void enableIESelection() /*-{
 704                 if ($doc.body.onselectstart != null)
 705                 $doc.body.onselectstart = null;
 706         }-*/;
 707
 708         /**
 709          * @return the absolute path of the API root URL
 710          */
 711         public String getApiPath() {
 712                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 713                 return conf.apiPath();
 714         }
 715
 716         /**
 717          * History support for folder navigation
 718          * adds a new browser history entry
 719          *
 720          * @param key
 721          */
 722         public void updateHistory(String key){
 723 //              Replace any whitespace of the initial string to "+"
 724 //              String result = key.replaceAll("\\s","+");
 725 //              Add a new browser history entry.
 726 //              History.newItem(result);
 727                 History.newItem(key);
 728         }
 729
 730     public void deleteFolder(final Folder folder) {
 731         String path = getApiPath() + getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + folder.getPrefix();
 732         RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
 733         builder.setHeader("If-Modified-Since", "0");
 734         builder.setHeader("X-Auth-Token", getToken());
 735         try {
 736             builder.sendRequest("", new RequestCallback() {
 737                 @Override
 738                 public void onResponseReceived(@SuppressWarnings("unused") Request request, Response response) {
 739                     if (response.getStatusCode() == Response.SC_OK) {
 740                         JSONValue json = JSONParser.parseStrict(response.getText());
 741                         JSONArray array = json.isArray();
 742                         int i = 0;
 743                         if (array != null) {
 744                             deleteObject(folder, i, array);
 745                         }
 746                     }
 747                 }
 748
 749                 @Override
 750                 public void onError(@SuppressWarnings("unused") Request request, Throwable exception) {
 751                     displayError("System error unable to delete folder: " + exception.getMessage());
 752                 }
 753             });
 754         }
 755         catch (RequestException e) {
 756         }
 757     }
 758
 759     public void deleteObject(final Folder folder, final int i, final JSONArray array) {
 760         if (i < array.size()) {
 761             JSONObject o = array.get(i).isObject();
 762             if (o != null && !o.containsKey("subdir")) {
 763                 JSONString name = o.get("name").isString();
 764                 String path = "/" + folder.getContainer() + "/" + name.stringValue();
 765                 DeleteRequest delete = new DeleteRequest(getApiPath(), getUsername(), path) {
 766                     @Override
 767                     public void onSuccess(@SuppressWarnings("unused") Resource result) {
 768                         deleteObject(folder, i + 1, array);
 769                     }
 770
 771                     @Override
 772                     public void onError(Throwable t) {
 773                         GWT.log("", t);
 774                         displayError("System error unable to delete folder: " + t.getMessage());
 775                     }
 776                 };
 777                 delete.setHeader("X-Auth-Token", getToken());
 778                 Scheduler.get().scheduleDeferred(delete);
 779             }
 780             else if (o != null) {
 781                 String subdir = o.get("subdir").isString().stringValue();
 782                 subdir = subdir.substring(0, subdir.length() - 1);
 783                 String path = getApiPath() + getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + subdir;
 784                 RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
 785                 builder.setHeader("If-Modified-Since", "0");
 786                 builder.setHeader("X-Auth-Token", getToken());
 787                 try {
 788                     builder.sendRequest("", new RequestCallback() {
 789                         @Override
 790                         public void onResponseReceived(@SuppressWarnings("unused") Request request, Response response) {
 791                             if (response.getStatusCode() == Response.SC_OK) {
 792                                 JSONValue json = JSONParser.parseStrict(response.getText());
 793                                 JSONArray array2 = json.isArray();
 794                                 if (array2 != null) {
 795                                     int l = array.size();
 796                                     for (int j=0; j<array2.size(); j++) {
 797                                         array.set(l++, array2.get(j));
 798                                     }
 799                                 }
 800                                 deleteObject(folder, i + 1, array);
 801                             }
 802                         }
 803
 804                         @Override
 805                         public void onError(@SuppressWarnings("unused") Request request, Throwable exception) {
 806                             displayError("System error unable to delete folder: " + exception.getMessage());
 807                         }
 808                     });
 809                 }
 810                 catch (RequestException e) {
 811                 }
 812             }
 813         }
 814         else {
 815             String path = folder.getUri();
 816             DeleteRequest deleteFolder = new DeleteRequest(getApiPath(), getUsername(), path) {
 817                 @Override
 818                 public void onSuccess(@SuppressWarnings("unused") Resource result) {
 819                     updateFolder(folder.getParent(), true, null);
 820                 }
 821
 822                 @Override
 823                 public void onError(Throwable t) {
 824                     GWT.log("", t);
 825                     if (t instanceof RestException) {
 826                         if (((RestException) t).getHttpStatusCode() != Response.SC_NOT_FOUND)
 827                                 displayError("Unable to delete folder: "+((RestException) t).getHttpStatusText());
 828                         else
 829                                 onSuccess(null);
 830                     }
 831                     else
 832                         displayError("System error unable to delete folder: " + t.getMessage());
 833                 }
 834             };
 835             deleteFolder.setHeader("X-Auth-Token", getToken());
 836             Scheduler.get().scheduleDeferred(deleteFolder);
 837         }
 838     }
 839
 840     public FolderTreeView getFolderTreeView() {
 841         return folderTreeView;
 842     }
 843
 844     public void copyFiles(final Iterator<File> iter, final String targetUri, final Command callback) {
 845         if (iter.hasNext()) {
 846             File file = iter.next();
 847             String path = targetUri + "/" + file.getName();
 848             PutRequest copyFile = new PutRequest(getApiPath(), getUsername(), path) {
 849                 @Override
 850                 public void onSuccess(@SuppressWarnings("unused") Resource result) {
 851                     copyFiles(iter, targetUri, callback);
 852                 }
 853
 854                 @Override
 855                 public void onError(Throwable t) {
 856                     GWT.log("", t);
 857                     if (t instanceof RestException) {
 858                         displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 859                     }
 860                     else
 861                         displayError("System error unable to copy file: "+t.getMessage());
 862                 }
 863             };
 864             copyFile.setHeader("X-Auth-Token", getToken());
 865             copyFile.setHeader("X-Copy-From", file.getUri());
 866             Scheduler.get().scheduleDeferred(copyFile);
 867         }
 868         else  if (callback != null) {
 869             callback.execute();
 870         }
 871     }
 872
 873     public void copySubfolders(final Iterator<Folder> iter, final String targetUri, final Command callback) {
 874         if (iter.hasNext()) {
 875             final Folder f = iter.next();
 876             copyFolder(f, targetUri, callback);
 877         }
 878         else  if (callback != null) {
 879             callback.execute();
 880         }
 881     }
 882
 883     public void copyFolder(final Folder f, final String targetUri, final Command callback) {
 884         String path = targetUri + "/" + f.getName();
 885         PutRequest createFolder = new PutRequest(getApiPath(), getUsername(), path) {
 886             @Override
 887             public void onSuccess(@SuppressWarnings("unused") Resource result) {
 888                 Iterator<File> iter = f.getFiles().iterator();
 889                 copyFiles(iter, targetUri + "/" + f.getName(), new Command() {
 890                     @Override
 891                     public void execute() {
 892                         Iterator<Folder> iterf = f.getSubfolders().iterator();
 893                         copySubfolders(iterf, targetUri + "/" + f.getName(), new Command() {
 894                             @Override
 895                             public void execute() {
 896                                 callback.execute();
 897                             }
 898                         });
 899                     }
 900                 });
 901             }
 902
 903             @Override
 904             public void onError(Throwable t) {
 905                 GWT.log("", t);
 906                 if (t instanceof RestException) {
 907                     displayError("Unable to create folder:" + ((RestException) t).getHttpStatusText());
 908                 }
 909                 else
 910                     displayError("System error creating folder:" + t.getMessage());
 911             }
 912         };
 913         createFolder.setHeader("X-Auth-Token", getToken());
 914         createFolder.setHeader("Accept", "*/*");
 915         createFolder.setHeader("Content-Length", "0");
 916         createFolder.setHeader("Content-Type", "application/folder");
 917         Scheduler.get().scheduleDeferred(createFolder);
 918     }
 919
 920     public void addSelectionModel(@SuppressWarnings("rawtypes") SingleSelectionModel model) {
 921         selectionModels.add(model);
 922     }
 923
 924         public OtherSharedTreeView getOtherSharedTreeView() {
 925                 return otherSharedTreeView;
 926         }
 927
 928         public void updateTrash(boolean showFiles, Command callback) {
 929                 updateFolder(trash, showFiles, callback);
 930         }
 931 }