code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/CellTreeViewModel.java

   1 /*
   2  * Copyright 2011 Electronic Business Systems Ltd.
   3  *
   4  * This file is part of GSS.
   5  *
   6  * GSS is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GSS is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GSS.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 package gr.ebs.gss.client;
  20
  21 import static com.google.gwt.query.client.GQuery.$;
  22 import gr.ebs.gss.client.CellTreeView.Images;
  23 import gr.ebs.gss.client.CellTreeView.RefreshHandler;
  24 import gr.ebs.gss.client.rest.GetCommand;
  25 import gr.ebs.gss.client.rest.MultipleGetCommand;
  26 import gr.ebs.gss.client.rest.RestException;
  27 import gr.ebs.gss.client.rest.resource.FileResource;
  28 import gr.ebs.gss.client.rest.resource.FolderResource;
  29 import gr.ebs.gss.client.rest.resource.MyFolderResource;
  30 import gr.ebs.gss.client.rest.resource.OtherUserResource;
  31 import gr.ebs.gss.client.rest.resource.OthersFolderResource;
  32 import gr.ebs.gss.client.rest.resource.OthersResource;
  33 import gr.ebs.gss.client.rest.resource.RestResource;
  34 import gr.ebs.gss.client.rest.resource.RestResourceWrapper;
  35 import gr.ebs.gss.client.rest.resource.SharedFolderResource;
  36 import gr.ebs.gss.client.rest.resource.SharedResource;
  37 import gr.ebs.gss.client.rest.resource.TrashFolderResource;
  38 import gr.ebs.gss.client.rest.resource.TrashResource;
  39 import gwtquery.plugins.draggable.client.DragAndDropManager;
  40 import gwtquery.plugins.draggable.client.DraggableOptions;
  41 import gwtquery.plugins.draggable.client.StopDragException;
  42 import gwtquery.plugins.draggable.client.DraggableOptions.CursorAt;
  43 import gwtquery.plugins.draggable.client.DraggableOptions.DragFunction;
  44 import gwtquery.plugins.draggable.client.DraggableOptions.RevertOption;
  45 import gwtquery.plugins.draggable.client.events.DragContext;
  46 import gwtquery.plugins.droppable.client.DroppableOptions;
  47 import gwtquery.plugins.droppable.client.DroppableOptions.DroppableFunction;
  48 import gwtquery.plugins.droppable.client.events.DragAndDropContext;
  49 import gwtquery.plugins.droppable.client.gwt.DragAndDropNodeInfo;
  50
  51 import java.util.ArrayList;
  52 import java.util.Arrays;
  53 import java.util.HashMap;
  54 import java.util.List;
  55 import java.util.Map;
  56
  57 import com.google.gwt.cell.client.AbstractCell;
  58 import com.google.gwt.cell.client.Cell;
  59 import com.google.gwt.cell.client.ValueUpdater;
  60 import com.google.gwt.core.client.GWT;
  61 import com.google.gwt.dom.client.Style.Cursor;
  62 import com.google.gwt.query.client.plugins.GQueryUi;
  63 import com.google.gwt.safehtml.client.SafeHtmlTemplates;
  64 import com.google.gwt.safehtml.shared.SafeHtml;
  65 import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
  66 import com.google.gwt.user.client.DeferredCommand;
  67 import com.google.gwt.user.client.Window;
  68 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  69 import com.google.gwt.view.client.AsyncDataProvider;
  70 import com.google.gwt.view.client.HasData;
  71 import com.google.gwt.view.client.ListDataProvider;
  72 import com.google.gwt.view.client.ProvidesKey;
  73 import com.google.gwt.view.client.SingleSelectionModel;
  74 import com.google.gwt.view.client.TreeViewModel;
  75
  76
  77
  78 /**
  79  * @author kman
  80  *
  81  */
  82 public class CellTreeViewModel implements TreeViewModel{
  83
  84         private final ListDataProvider<RestResource> rootNodes = new ListDataProvider<RestResource>();
  85         private Map<String,FolderResource> folderCache=new HashMap<String, FolderResource>();
  86         final Images images;
  87         SingleSelectionModel<RestResource> selectionModel;
  88         Map<String, MyFolderDataProvider> mymap = new HashMap<String, MyFolderDataProvider>();
  89         Map<String, MyFolderDataProvider> sharedmap = new HashMap<String, MyFolderDataProvider>();
  90         Map<String, MyFolderDataProvider> othersmap = new HashMap<String, MyFolderDataProvider>();
  91         static interface Templates extends SafeHtmlTemplates {
  92             Templates INSTANCE = GWT.create(Templates.class);
  93
  94             @Template(" <div id='dragHelper' class='{0}'></div>")
  95             SafeHtml outerHelper(String cssClassName);
  96           }
  97
  98         static void configureDragOperation(final DraggableOptions options) {
  99
 100             // set a custom element as drag helper. The content of the helper will be
 101             // set when the drag will start
 102             options.setHelper($(Templates.INSTANCE.outerHelper(
 103                 "drag").asString()));
 104             // opacity of the drag helper
 105             options.setOpacity((float) 0.9);
 106             // cursor during the drag operation
 107             options.setCursor(Cursor.MOVE);
 108             // the cell being greater than the helper, force the position of the
 109             // helper on the mouse cursor.
 110             options.setCursorAt(new CursorAt(10, 10, null, null));
 111             // append the helper to the body element
 112             options.setAppendTo("body");
 113             // set the revert option
 114             options.setRevert(RevertOption.ON_INVALID_DROP);
 115             options.setOnBeforeDragStart(new DragFunction() {
 116
 117                         @Override
 118                         public void f(DragContext context) {
 119                                  RestResource value = context.getDraggableData();
 120                              if(value instanceof TrashResource || value instanceof SharedResource || value instanceof OthersResource || value instanceof OtherUserResource){
 121                                 throw new StopDragException();
 122                               }
 123
 124                         }
 125                 });
 126             // use a Function to fill the content of the helper
 127             // we could also add a DragStartEventHandler on the DragAndDropTreeCell and
 128             // DragAndDropCellList.
 129
 130             options.setOnDragStart(new DragFunction() {
 131               public void f(DragContext context) {
 132                 RestResourceWrapper memberInfo = context.getDraggableData();
 133                 context.getHelper().setInnerHTML(memberInfo.getName());
 134               }
 135             });
 136
 137           }
 138
 139         /**
 140          *
 141          */
 142         public CellTreeViewModel(final Images _images,SingleSelectionModel<RestResource> selectionModel ) {
 143                 super();
 144                 images=_images;
 145                 this.selectionModel=selectionModel;
 146         }
 147
 148         private final Cell<RestResource> departmentCell = new AbstractCell<RestResource>("contextmenu"){
 149
 150                 @Override
 151                 public void render(com.google.gwt.cell.client.Cell.Context arg0, RestResource arg1, SafeHtmlBuilder arg2) {
 152                         String id = null;
 153                         String html = null;
 154                         String name = null;
 155                         if(arg1 instanceof TrashFolderResource){
 156                                 html = AbstractImagePrototype.create(images.folderYellow()).getHTML();
 157                                 FolderResource res = ((RestResourceWrapper)arg1).getResource();
 158                                 name = res.getName();
 159                                 id = res.getParentName() +"."+name;
 160                         }
 161                         else if(arg1 instanceof RestResourceWrapper){
 162                                 FolderResource res = ((RestResourceWrapper)arg1).getResource();
 163                                 if(res.isShared())
 164                                         html = AbstractImagePrototype.create(images.sharedFolder()).getHTML();
 165                                 else if(res.getParentName()==null){
 166                                         html = AbstractImagePrototype.create(images.home()).getHTML();
 167                                 }
 168                                 else
 169                                         html = AbstractImagePrototype.create(images.folderYellow()).getHTML();
 170                                 name = res.getName();
 171                                 if(res.getParentName() != null){
 172                                         id = res.getParentName()+"."+name;
 173                                 }else{
 174                                         id = name;
 175                                 }
 176
 177                         }
 178                         else if(arg1 instanceof TrashResource){
 179                                 html = AbstractImagePrototype.create(images.trash()).getHTML();
 180                                 name="Trash";
 181                                 id = name;
 182                         }
 183
 184                         else if(arg1 instanceof SharedResource){
 185                                 html = AbstractImagePrototype.create(images.myShared()).getHTML();
 186                                 name = "My Shared";
 187                                 id = name;
 188                         }
 189                         else if(arg1 instanceof OthersResource){
 190                                 html = AbstractImagePrototype.create(images.othersShared()).getHTML();
 191                                 name = "Other's Shared";
 192                                 id = "others";
 193                         }
 194                         else if(arg1 instanceof OtherUserResource){
 195                                 html = AbstractImagePrototype.create(images.permUser()).getHTML();
 196                                 name = ((OtherUserResource)arg1).getName();
 197                                 id = name;
 198                         }
 199                         arg2.appendHtmlConstant(html);
 200                         arg2.appendHtmlConstant("<span id='"+id +"'"+ " class='papala'>");
 201                         arg2.appendEscaped(name);
 202                         arg2.appendHtmlConstant("</span>");
 203                 }
 204
 205                 public void onBrowserEvent(Cell.Context context, com.google.gwt.dom.client.Element parent, RestResource value, com.google.gwt.dom.client.NativeEvent event, com.google.gwt.cell.client.ValueUpdater<RestResource> valueUpdater) {
 206                         if(event.getType().equals("contextmenu")){
 207                                 selectionModel.setSelected(value, true);
 208                                 GSS.get().getTreeView().showPopup(event.getClientX(), event.getClientY());
 209                         }
 210                 };
 211
 212         };
 213
 214
 215         @Override
 216         public <T> NodeInfo<?> getNodeInfo(final T value) {
 217
 218                 if(value==null){
 219                         DragAndDropNodeInfo n = new DragAndDropNodeInfo<RestResource>(getRootNodes(), departmentCell,
 220                                     selectionModel, null);
 221                         configureFolderDrop(n);
 222                 configureDragOperation(n.getDraggableOptions());
 223                         return n;
 224                 }
 225                 else if (value instanceof MyFolderResource) {
 226                 // Second level.
 227                         MyFolderDataProvider dataProvider = new MyFolderDataProvider(
 228                     ((MyFolderResource) value),MyFolderResource.class);
 229                 DragAndDropNodeInfo<RestResource> n =  new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
 230                     selectionModel, new ResourceValueUpdater());
 231                 mymap.put(((MyFolderResource) value).getUri(), dataProvider);
 232
 233                 // permission cell are not draggable
 234                 //n.setCellDroppableOnly();
 235                 configureFolderDrop(n);
 236                 configureDragOperation(n.getDraggableOptions());
 237
 238                 return n;
 239                 }
 240                 else if (value instanceof SharedResource) {
 241                 // Second level.
 242                         MyFolderDataProvider dataProvider = new MyFolderDataProvider(
 243                     ((SharedResource) value), SharedFolderResource.class);
 244                         sharedmap.put(((SharedResource) value).getUri(), dataProvider);
 245                         DragAndDropNodeInfo<RestResource> n = new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
 246                     selectionModel, new ResourceValueUpdater());
 247                          configureFolderDrop(n);
 248                         configureDragOperation(n.getDraggableOptions());
 249                         return n;
 250                 }
 251                 else if (value instanceof TrashResource) {
 252                 // Second level.
 253                         ListDataProvider<RestResource> trashProvider = new ListDataProvider<RestResource>();
 254                         List<RestResource> r = new ArrayList<RestResource>();
 255                         for(FolderResource f : GSS.get().getTreeView().getTrash().getFolders()){
 256                                 r.add(new TrashFolderResource(f));
 257                         }
 258                         trashProvider.setList(r);
 259                         DragAndDropNodeInfo<RestResource> n = new DragAndDropNodeInfo<RestResource>(trashProvider, departmentCell,
 260                     selectionModel, new ResourceValueUpdater());
 261                         configureFolderDrop(n);
 262                 configureDragOperation(n.getDraggableOptions());
 263                         return n;
 264                 }
 265                 else if (value instanceof OthersResource) {
 266                 // Second level.
 267                         OthersDataProvider dataProvider = new OthersDataProvider(
 268                     ((OthersResource) value), SharedFolderResource.class);
 269                 DragAndDropNodeInfo<RestResource> n = new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
 270                     selectionModel, null);
 271                 configureFolderDrop(n);
 272                 configureDragOperation(n.getDraggableOptions());
 273                 return n;
 274                 }
 275                 else if (value instanceof SharedFolderResource) {
 276                 // Second level.
 277                         MyFolderDataProvider dataProvider = new MyFolderDataProvider(
 278                     ((SharedFolderResource) value),SharedFolderResource.class);
 279                 DragAndDropNodeInfo<RestResource> n =  new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
 280                     selectionModel, new ResourceValueUpdater());
 281                 sharedmap.put(((SharedFolderResource) value).getUri(), dataProvider);
 282                 configureFolderDrop(n);
 283                 configureDragOperation(n.getDraggableOptions());
 284                 return n;
 285                 }
 286                 else if (value instanceof OthersFolderResource) {
 287                 // Second level.
 288                         MyFolderDataProvider dataProvider = new MyFolderDataProvider(
 289                     ((OthersFolderResource) value),OthersFolderResource.class);
 290                 DragAndDropNodeInfo<RestResource> n =  new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
 291                     selectionModel, new ResourceValueUpdater());
 292                 //nodeInfos.put(((OthersFolderResource) value).getUri(), n);
 293                 othersmap.put(((SharedFolderResource) value).getUri(), dataProvider);
 294                 configureFolderDrop(n);
 295                 configureDragOperation(n.getDraggableOptions());
 296                 return n;
 297                 }
 298                 else if (value instanceof OtherUserResource) {
 299                 // Second level.
 300                         MyFolderDataProvider dataProvider = new MyFolderDataProvider(
 301                     ((OtherUserResource) value),OthersFolderResource.class);
 302                 DragAndDropNodeInfo<RestResource> n =  new DragAndDropNodeInfo<RestResource>(dataProvider, departmentCell,
 303                     selectionModel, new ResourceValueUpdater());
 304                 configureFolderDrop(n);
 305                 configureDragOperation(n.getDraggableOptions());
 306                 return n;
 307                 }
 308                 // TODO Auto-generated method stub
 309                 return null;
 310         }
 311
 312         private void configureFolderDrop(DragAndDropNodeInfo<RestResource> n){
 313                 DroppableOptions options = n.getDroppableOptions();
 314         options.setDroppableHoverClass("droppableHover");
 315         // use a DroppableFunction here. We can also add a DropHandler in the tree
 316         // itself
 317
 318         options.setOnOver(new DroppableFunction() {
 319
 320                         @Override
 321                         public void f(final DragAndDropContext context) {
 322                                 if(context.getDroppableData()!=null && context.getDroppableData() instanceof RestResource){
 323
 324                                         GSS.get().getTreeView().getUtils().openNodeContainingResource((RestResource) context.getDroppableData(), new RefreshHandler() {
 325
 326                                                 @Override
 327                                                 public void onRefresh() {
 328
 329                                                         DragAndDropManager.getInstance().update(context);//initialize(context, GQueryUi.Event.create(com.google.gwt.user.client.Event.getCurrentEvent()));
 330
 331                                                 }
 332                                         });
 333
 334                                 }
 335
 336
 337
 338                         }
 339                 });
 340         options.setOnDrop(new DroppableFunction() {
 341
 342           public void f(DragAndDropContext context) {
 343
 344                   DnDFolderPopupMenu popup ;
 345                   if(context.getDraggableData() instanceof FileResource){
 346                           popup = new DnDFolderPopupMenu(images, ((MyFolderResource) context.getDroppableData()).getResource(), Arrays.asList(context.getDraggableData()));
 347                   }
 348                   else
 349                           popup = new DnDFolderPopupMenu(images, ((MyFolderResource) context.getDroppableData()).getResource(), context.getDraggableData());
 350                   int left = context.getDroppable().getAbsoluteLeft() + 40;
 351               int top = context.getDroppable().getAbsoluteTop() + 20;
 352               popup.setPopupPosition(left, top);
 353
 354                   popup.show();
 355           }
 356         });
 357         }
 358
 359         @Override
 360         public boolean isLeaf(Object value) {
 361                 if(value instanceof RestResourceWrapper)
 362                         return ((RestResourceWrapper)value).getResource().getFolders().size()==0;
 363                 else if(value instanceof TrashResource)
 364                         return ((TrashResource)value).getFolders().size()==0;
 365                 else if(value instanceof SharedResource)
 366                         return ((SharedResource)value).getFolders().size()==0;
 367                 else if(value instanceof OthersResource)
 368                         return ((OthersResource)value).getOtherUsers().size()==0;
 369                 else if(value instanceof OtherUserResource)
 370                         return ((OtherUserResource)value).getFolders().size()==0;
 371                 return false;
 372         }
 373
 374         class ResourceValueUpdater implements  ValueUpdater<RestResource>{
 375
 376                 @Override
 377                 public void update(final RestResource value) {
 378                         if(value instanceof MyFolderResource){
 379                                 GetCommand<FolderResource> gf = new GetCommand<FolderResource>(FolderResource.class, value.getUri(), null) {
 380
 381                                         @Override
 382                                         public void onComplete() {
 383                                                 FolderResource rootResource = getResult();
 384                                                 //((MyFolderResource)value).getResource().setFiles(rootResource.getFiles());
 385                                                 ((MyFolderResource)value).setResource(rootResource);
 386                                                 if(GSS.get().getTreeView().getSelection().getUri().equals(value.getUri()))
 387                                                         selectionModel.setSelected(value, true);
 388                                                 GSS.get().onResourceUpdate(value);
 389
 390                                         }
 391
 392                                         @Override
 393                                         public void onError(Throwable t) {
 394                                                 GWT.log("Error fetching root folder", t);
 395                                                 GSS.get().displayError("Unable to fetch root folder");
 396                                         }
 397
 398                                 };
 399                                 DeferredCommand.addCommand(gf);
 400                         }
 401                         else if(value instanceof TrashResource){
 402                                 DeferredCommand.addCommand(new GetCommand<TrashResource>(TrashResource.class, GSS.get().getCurrentUserResource().getTrashPath(), null) {
 403                                         @Override
 404                                         public void onComplete() {
 405                                                 //trash = getResult();
 406                                                 for(RestResource r : getRootNodes().getList()){
 407                                                         if(r instanceof TrashResource)
 408                                                                 getRootNodes().getList().set(getRootNodes().getList().indexOf(r),GSS.get().getTreeView().getTrash());
 409                                                 }
 410                                                 GSS.get().getTreeView().updateNodeChildren(GSS.get().getTreeView().getTrash());
 411                                         }
 412
 413                                         @Override
 414                                         public void onError(Throwable t) {
 415                                                 if(t instanceof RestException){
 416                                                         int statusCode = ((RestException)t).getHttpStatusCode();
 417                                                         // On IE status code 1223 may be returned instead of 204.
 418                                                         if(statusCode == 204 || statusCode == 1223){
 419                                                                 //trash = new TrashResource(GSS.get().getCurrentUserResource().getTrashPath());
 420                                                 }
 421                                                 else{
 422                                                         GWT.log("", t);
 423                                                         GSS.get().displayError("Unable to fetch trash folder:"+t.getMessage());
 424                                                         //GSS.get().getTreeView().getTrash() = new TrashResource(GSS.get().getCurrentUserResource().getTrashPath());
 425                                                 }
 426                                         }
 427                                 }
 428                                 });
 429                         }
 430                         else if(value instanceof OthersFolderResource){
 431
 432                         }
 433
 434                 }
 435
 436         }
 437         class MyFolderDataProvider extends AsyncDataProvider<RestResource>{
 438                 private RestResource restResource;
 439                 private Class resourceClass;
 440                   public MyFolderDataProvider(RestResource department, Class resourceClass) {
 441                     super(new ProvidesKey<RestResource>() {
 442
 443                                 @Override
 444                                 public Object getKey(RestResource item) {
 445                                         return item.getUri();
 446                                 }});
 447                     this.restResource = department;
 448                     this.resourceClass=resourceClass;
 449                   }
 450
 451                   @Override
 452                   protected void onRangeChanged(final HasData<RestResource> view) {
 453                         refresh(null);
 454                   }
 455
 456                 /**
 457                  * Retrieve the restResource.
 458                  *
 459                  * @return the restResource
 460                  */
 461                 public RestResource getRestResource() {
 462                         return restResource;
 463                 }
 464
 465
 466                 /**
 467                  * Modify the restResource.
 468                  *
 469                  * @param restResource the restResource to set
 470                  */
 471                 public void setRestResource(RestResource restResource) {
 472                         this.restResource = restResource;
 473                 }
 474                 List<RestResource> res =null;
 475                   public void refresh(final RefreshHandler refresh){
 476                           FolderResource cache = null;
 477                           if(restResource instanceof RestResourceWrapper && !((RestResourceWrapper)restResource).getResource().isNeedsExpanding())
 478                                   cache = ((RestResourceWrapper)restResource).getResource();
 479                           GetCommand<FolderResource> gf = new GetCommand<FolderResource>(FolderResource.class, restResource.getUri(),cache ) {
 480
 481                                         @Override
 482                                         public void onComplete() {
 483                                                 if(restResource instanceof RestResourceWrapper){
 484                                                         ((RestResourceWrapper)restResource).setResource(getResult());//restResource = getResult();
 485                                                         ((RestResourceWrapper)restResource).getResource().setNeedsExpanding(false);
 486                                                 }
 487                                                 if(usedCachedVersion()&&res!=null){
 488
 489                                                                 updateRowCount(res.size(), true);
 490                                                                 updateRowData(0,res);
 491                                                         return;
 492                                                 }
 493                                                 String[] folderPaths = null;
 494                                                 if(resourceClass.equals(MyFolderResource.class))
 495                                                         folderPaths=((MyFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
 496                                                 else if(resourceClass.equals(SharedFolderResource.class) && restResource instanceof SharedResource)
 497                                                         folderPaths=((SharedResource) restResource).getSubfolderPaths().toArray(new String[] {});
 498                                                 else if(resourceClass.equals(SharedFolderResource.class)){
 499                                                         folderPaths=((SharedFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
 500                                                         GWT.log("------------>"+folderPaths);
 501                                                 }
 502                                                 else if(resourceClass.equals(TrashFolderResource.class))
 503                                                         folderPaths=((TrashFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
 504                                                 else if(resourceClass.equals(OthersFolderResource.class) && restResource instanceof OtherUserResource)
 505                                                         folderPaths=((OtherUserResource) restResource).getSubfolderPaths().toArray(new String[] {});
 506                                                 else if(resourceClass.equals(OthersFolderResource.class))
 507                                                         folderPaths=((OthersFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
 508                                                 MultipleGetCommand.Cached[] cached = null;
 509                                                 if(restResource instanceof RestResourceWrapper)
 510                                                         cached=((RestResourceWrapper)restResource).getResource().getCache();
 511                                                 MultipleGetCommand<FolderResource> gf2 = new MultipleGetCommand<FolderResource>(FolderResource.class,
 512                                                                         folderPaths, cached) {
 513
 514                                                         @Override
 515                                                         public void onComplete() {
 516                                                                 res = new ArrayList<RestResource>();
 517                                                                 for(FolderResource r : getResult()){
 518                                                                         if(r.isDeleted()){
 519
 520                                                                         }
 521                                                                         else if(resourceClass.equals(MyFolderResource.class))
 522                                                                                 res.add(new MyFolderResource(r));
 523                                                                         else if(resourceClass.equals(SharedFolderResource.class)){
 524                                                                                 res.add(new SharedFolderResource(r));
 525                                                                         }
 526                                                                         else if(resourceClass.equals(TrashFolderResource.class))
 527                                                                                 res.add(new TrashFolderResource(r));
 528                                                                         else if(resourceClass.equals(OthersFolderResource.class))
 529                                                                                 res.add(new OthersFolderResource(r));
 530                                                                 }
 531                                                                 if(restResource instanceof RestResourceWrapper)
 532                                                                         ((RestResourceWrapper)restResource).getResource().setFolders(getResult());
 533                                                                 updateRowCount(res.size(), true);
 534                                                                 updateRowData(0,res);
 535                                                                 if(refresh!=null)
 536                                                                         refresh.onRefresh();
 537                                                         }
 538
 539                                                         @Override
 540                                                         public void onError(Throwable t) {
 541                                                                 GSS.get().displayError("Unable to fetch subfolders");
 542                                                                 GWT.log("Unable to fetch subfolders", t);
 543                                                         }
 544
 545                                                         @Override
 546                                                         public void onError(String p, Throwable throwable) {
 547                                                                 GWT.log("Path:"+p, throwable);
 548                                                         }
 549
 550                                                 };
 551                                                 DeferredCommand.addCommand(gf2);
 552
 553                                         }
 554
 555                                         @Override
 556                                         public void onError(Throwable t) {
 557
 558                                                 GWT.log("Error fetching root folder", t);
 559                                                 GSS.get().displayError("Unable to fetch root folder");
 560                                         }
 561
 562                                 };
 563                                 DeferredCommand.addCommand(gf);
 564                   }
 565         }
 566
 567
 568         class OthersDataProvider extends AsyncDataProvider<RestResource>{
 569                 private RestResource restResource;
 570                 private Class resourceClass;
 571                   public OthersDataProvider(RestResource department, Class resourceClass) {
 572                     super(new ProvidesKey<RestResource>() {
 573
 574                                 @Override
 575                                 public Object getKey(RestResource item) {
 576                                         return item.getUri();
 577                                 }});
 578                     this.restResource = department;
 579                     this.resourceClass=resourceClass;
 580                   }
 581
 582                   @Override
 583                   protected void onRangeChanged(final HasData<RestResource> view) {
 584                         refresh(null);
 585                   }
 586
 587                 /**
 588                  * Retrieve the restResource.
 589                  *
 590                  * @return the restResource
 591                  */
 592                 public RestResource getRestResource() {
 593                         return restResource;
 594                 }
 595
 596
 597                 /**
 598                  * Modify the restResource.
 599                  *
 600                  * @param restResource the restResource to set
 601                  */
 602                 public void setRestResource(RestResource restResource) {
 603                         this.restResource = restResource;
 604                 }
 605
 606                   public void refresh(final RefreshHandler refresh){
 607                           GetCommand<OthersResource> go = new GetCommand<OthersResource>(OthersResource.class,
 608                           restResource.getUri(), null) {
 609
 610                                   @Override
 611                                   public void onComplete() {
 612                                           final OthersResource others = getResult();
 613                           MultipleGetCommand<OtherUserResource> gogo = new MultipleGetCommand<OtherUserResource>(OtherUserResource.class,
 614                                                   others.getOthers().toArray(new String[] {}), null) {
 615
 616                                   @Override
 617                                   public void onComplete() {
 618                                           List<OtherUserResource> res = getResult();
 619                                           updateRowCount(res.size(), true);
 620                                           List<RestResource> r = new ArrayList<RestResource>();
 621                                           r.addAll(res);
 622                                                                           updateRowData(0,r);
 623                                   }
 624
 625                                   @Override
 626                                   public void onError(Throwable t) {
 627                                           GWT.log("Error fetching Others Root folder", t);
 628                                           GSS.get().displayError("Unable to fetch Others Root folder");
 629                                   }
 630
 631                                   @Override
 632                                   public void onError(String p, Throwable throwable) {
 633                                           GWT.log("Path:"+p, throwable);
 634                                   }
 635                           };
 636                           DeferredCommand.addCommand(gogo);
 637                                   }
 638
 639                                   @Override
 640                                   public void onError(Throwable t) {
 641                                           GWT.log("Error fetching Others Root folder", t);
 642                                           GSS.get().displayError("Unable to fetch Others Root folder");
 643                                   }
 644                           };
 645                           DeferredCommand.addCommand(go);
 646                   }
 647         }
 648
 649
 650
 651         /**
 652          * Retrieve the rootNodes.
 653          *
 654          * @return the rootNodes
 655          */
 656         public ListDataProvider<RestResource> getRootNodes() {
 657                 return rootNodes;
 658         }
 659
 660
 661         /**
 662          * Retrieve the mymap.
 663          *
 664          * @return the mymap
 665          */
 666         public Map<String, MyFolderDataProvider> getMymap() {
 667                 return mymap;
 668         }
 669
 670
 671         /**
 672          * Retrieve the sharedmap.
 673          *
 674          * @return the sharedmap
 675          */
 676         public Map<String, MyFolderDataProvider> getSharedmap() {
 677                 return sharedmap;
 678         }
 679
 680
 681         /**
 682          * Retrieve the othersmap.
 683          *
 684          * @return the othersmap
 685          */
 686         public Map<String, MyFolderDataProvider> getOthersmap() {
 687                 return othersmap;
 688         }
 689
 690
 691
 692
 693
 694
 695 }