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(((OthersFolderResource) 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                           if(context.getDroppableData() instanceof RestResourceWrapper)
 347                                   popup = new DnDFolderPopupMenu(images, ((RestResourceWrapper) context.getDroppableData()).getResource(), Arrays.asList(context.getDraggableData()));
 348                           else
 349                                   popup = new DnDFolderPopupMenu(images, null, Arrays.asList(context.getDraggableData()));
 350                   }
 351
 352                   else{
 353                           if(context.getDroppableData() instanceof RestResourceWrapper)
 354                                   popup = new DnDFolderPopupMenu(images, ((RestResourceWrapper) context.getDroppableData()).getResource(), context.getDraggableData());
 355                           else
 356                                   popup = new DnDFolderPopupMenu(images, null, context.getDraggableData());
 357                   }
 358
 359                   int left = context.getDroppable().getAbsoluteLeft() + 40;
 360               int top = context.getDroppable().getAbsoluteTop() + 20;
 361               popup.setPopupPosition(left, top);
 362
 363                   popup.show();
 364           }
 365         });
 366         }
 367
 368         @Override
 369         public boolean isLeaf(Object value) {
 370                 if(value instanceof RestResourceWrapper)
 371                         return ((RestResourceWrapper)value).getResource().getFolders().size()==0;
 372                 else if(value instanceof TrashResource)
 373                         return ((TrashResource)value).getFolders().size()==0;
 374                 else if(value instanceof SharedResource)
 375                         return ((SharedResource)value).getFolders().size()==0;
 376                 else if(value instanceof OthersResource)
 377                         return ((OthersResource)value).getOtherUsers().size()==0;
 378                 else if(value instanceof OtherUserResource)
 379                         return ((OtherUserResource)value).getFolders().size()==0;
 380                 return false;
 381         }
 382
 383         class ResourceValueUpdater implements  ValueUpdater<RestResource>{
 384
 385                 @Override
 386                 public void update(final RestResource value) {
 387                         if(value instanceof MyFolderResource){
 388                                 GetCommand<FolderResource> gf = new GetCommand<FolderResource>(FolderResource.class, value.getUri(), null) {
 389
 390                                         @Override
 391                                         public void onComplete() {
 392                                                 FolderResource rootResource = getResult();
 393                                                 //((MyFolderResource)value).getResource().setFiles(rootResource.getFiles());
 394                                                 ((MyFolderResource)value).setResource(rootResource);
 395                                                 if(GSS.get().getTreeView().getSelection().getUri().equals(value.getUri()))
 396                                                         selectionModel.setSelected(value, true);
 397                                                 GSS.get().onResourceUpdate(value);
 398
 399                                         }
 400
 401                                         @Override
 402                                         public void onError(Throwable t) {
 403                                                 GWT.log("Error fetching root folder", t);
 404                                                 GSS.get().displayError("Unable to fetch root folder");
 405                                         }
 406
 407                                 };
 408                                 DeferredCommand.addCommand(gf);
 409                         }
 410                         else if(value instanceof TrashResource){
 411                                 DeferredCommand.addCommand(new GetCommand<TrashResource>(TrashResource.class, GSS.get().getCurrentUserResource().getTrashPath(), null) {
 412                                         @Override
 413                                         public void onComplete() {
 414                                                 //trash = getResult();
 415                                                 ((TrashResource)value).setFolders(getResult().getFolders());
 416                                                 ((TrashResource)value).setFiles(getResult().getFiles());
 417                                                 for(RestResource r : getRootNodes().getList()){
 418                                                         if(r instanceof TrashResource)
 419                                                                 getRootNodes().getList().set(getRootNodes().getList().indexOf(r),GSS.get().getTreeView().getTrash());
 420                                                 }
 421                                                 GSS.get().getTreeView().updateNodeChildren(GSS.get().getTreeView().getTrash());
 422                                                 //GSS.get().showFileList(true);
 423                                                 GSS.get().onResourceUpdate(value);
 424                                         }
 425
 426                                         @Override
 427                                         public void onError(Throwable t) {
 428                                                 if(t instanceof RestException){
 429                                                         int statusCode = ((RestException)t).getHttpStatusCode();
 430                                                         // On IE status code 1223 may be returned instead of 204.
 431                                                         if(statusCode == 204 || statusCode == 1223){
 432                                                                 ((TrashResource)value).setFolders(new ArrayList<FolderResource>());
 433                                                                 ((TrashResource)value).setFiles(new ArrayList<FileResource>());
 434                                                 }
 435                                                 else{
 436                                                         GWT.log("", t);
 437                                                         GSS.get().displayError("Unable to fetch trash folder:"+t.getMessage());
 438                                                         //GSS.get().getTreeView().getTrash() = new TrashResource(GSS.get().getCurrentUserResource().getTrashPath());
 439                                                 }
 440                                         }
 441                                 }
 442                                 });
 443                         }
 444                         else if(value instanceof OthersFolderResource){
 445                                 GetCommand<FolderResource> gf = new GetCommand<FolderResource>(FolderResource.class, value.getUri(), null) {
 446
 447                                         @Override
 448                                         public void onComplete() {
 449                                                 FolderResource rootResource = getResult();
 450                                                 //((MyFolderResource)value).getResource().setFiles(rootResource.getFiles());
 451                                                 ((OthersFolderResource)value).setResource(rootResource);
 452                                                 if(GSS.get().getTreeView().getSelection().getUri().equals(value.getUri()))
 453                                                         selectionModel.setSelected(value, true);
 454                                                 GSS.get().onResourceUpdate(value);
 455
 456                                         }
 457
 458                                         @Override
 459                                         public void onError(Throwable t) {
 460                                                 GWT.log("Error fetching root folder", t);
 461                                                 GSS.get().displayError("Unable to fetch root folder");
 462                                         }
 463
 464                                 };
 465                                 DeferredCommand.addCommand(gf);
 466                         }
 467                         else if(value instanceof SharedFolderResource){
 468                                 GetCommand<FolderResource> gf = new GetCommand<FolderResource>(FolderResource.class, value.getUri(), null) {
 469
 470                                         @Override
 471                                         public void onComplete() {
 472                                                 FolderResource rootResource = getResult();
 473                                                 //((MyFolderResource)value).getResource().setFiles(rootResource.getFiles());
 474                                                 ((SharedFolderResource)value).setResource(rootResource);
 475                                                 if(GSS.get().getTreeView().getSelection().getUri().equals(value.getUri()))
 476                                                         selectionModel.setSelected(value, true);
 477                                                 GSS.get().onResourceUpdate(value);
 478
 479                                         }
 480
 481                                         @Override
 482                                         public void onError(Throwable t) {
 483                                                 GWT.log("Error fetching root folder", t);
 484                                                 GSS.get().displayError("Unable to fetch root folder");
 485                                         }
 486
 487                                 };
 488                                 DeferredCommand.addCommand(gf);
 489                         }
 490                         else if(value instanceof SharedResource){
 491                                 GetCommand<SharedResource> gf = new GetCommand<SharedResource>(SharedResource.class, value.getUri(), null) {
 492
 493                                         @Override
 494                                         public void onComplete() {
 495                                                 SharedResource rootResource = getResult();
 496                                                 ((SharedResource)value).setFolders(getResult().getFolders());
 497                                                 ((SharedResource)value).setFiles(getResult().getFiles());
 498
 499                                                 if(GSS.get().getTreeView().getSelection().getUri().equals(value.getUri()))
 500                                                         selectionModel.setSelected(value, true);
 501                                                 GSS.get().onResourceUpdate(value);
 502
 503                                         }
 504
 505                                         @Override
 506                                         public void onError(Throwable t) {
 507                                                 GWT.log("Error fetching root folder", t);
 508                                                 GSS.get().displayError("Unable to fetch root folder");
 509                                         }
 510
 511                                 };
 512                                 DeferredCommand.addCommand(gf);
 513                         }
 514                         else if(value instanceof OtherUserResource){
 515                                 GetCommand<OtherUserResource> gf = new GetCommand<OtherUserResource>(OtherUserResource.class, value.getUri(), null) {
 516
 517                                         @Override
 518                                         public void onComplete() {
 519                                                 OtherUserResource rootResource = getResult();
 520                                                 ((OtherUserResource)value).setFolders(getResult().getFolders());
 521                                                 ((OtherUserResource)value).setFiles(getResult().getFiles());
 522
 523                                                 if(GSS.get().getTreeView().getSelection().getUri().equals(value.getUri()))
 524                                                         selectionModel.setSelected(value, true);
 525                                                 GSS.get().onResourceUpdate(value);
 526
 527                                         }
 528
 529                                         @Override
 530                                         public void onError(Throwable t) {
 531                                                 GWT.log("Error fetching root folder", t);
 532                                                 GSS.get().displayError("Unable to fetch root folder");
 533                                         }
 534
 535                                 };
 536                                 DeferredCommand.addCommand(gf);
 537                         }
 538
 539                 }
 540
 541         }
 542         class MyFolderDataProvider extends AsyncDataProvider<RestResource>{
 543                 private RestResource restResource;
 544                 private Class resourceClass;
 545                   public MyFolderDataProvider(RestResource department, Class resourceClass) {
 546                     super(new ProvidesKey<RestResource>() {
 547
 548                                 @Override
 549                                 public Object getKey(RestResource item) {
 550                                         return item.getUri();
 551                                 }});
 552                     this.restResource = department;
 553                     this.resourceClass=resourceClass;
 554                   }
 555
 556                   @Override
 557                   protected void onRangeChanged(final HasData<RestResource> view) {
 558                         refresh(null);
 559                   }
 560
 561                 /**
 562                  * Retrieve the restResource.
 563                  *
 564                  * @return the restResource
 565                  */
 566                 public RestResource getRestResource() {
 567                         return restResource;
 568                 }
 569
 570
 571                 /**
 572                  * Modify the restResource.
 573                  *
 574                  * @param restResource the restResource to set
 575                  */
 576                 public void setRestResource(RestResource restResource) {
 577                         this.restResource = restResource;
 578                 }
 579                 List<RestResource> res =null;
 580                   public void refresh(final RefreshHandler refresh){
 581                           FolderResource cache = null;
 582                           if(restResource instanceof RestResourceWrapper && !((RestResourceWrapper)restResource).getResource().isNeedsExpanding())
 583                                   cache = ((RestResourceWrapper)restResource).getResource();
 584                           GetCommand<FolderResource> gf = new GetCommand<FolderResource>(FolderResource.class, restResource.getUri(),cache ) {
 585
 586                                         @Override
 587                                         public void onComplete() {
 588                                                 if(restResource instanceof RestResourceWrapper){
 589                                                         ((RestResourceWrapper)restResource).setResource(getResult());//restResource = getResult();
 590                                                         ((RestResourceWrapper)restResource).getResource().setNeedsExpanding(false);
 591                                                 }
 592                                                 if(usedCachedVersion()&&res!=null){
 593
 594                                                                 updateRowCount(res.size(), true);
 595                                                                 updateRowData(0,res);
 596                                                         return;
 597                                                 }
 598                                                 String[] folderPaths = null;
 599                                                 if(resourceClass.equals(MyFolderResource.class))
 600                                                         folderPaths=((MyFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
 601                                                 else if(resourceClass.equals(SharedFolderResource.class) && restResource instanceof SharedResource)
 602                                                         folderPaths=((SharedResource) restResource).getSubfolderPaths().toArray(new String[] {});
 603                                                 else if(resourceClass.equals(SharedFolderResource.class)){
 604                                                         folderPaths=((SharedFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
 605                                                         GWT.log("------------>"+folderPaths);
 606                                                 }
 607                                                 else if(resourceClass.equals(TrashFolderResource.class))
 608                                                         folderPaths=((TrashFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
 609                                                 else if(resourceClass.equals(OthersFolderResource.class) && restResource instanceof OtherUserResource)
 610                                                         folderPaths=((OtherUserResource) restResource).getSubfolderPaths().toArray(new String[] {});
 611                                                 else if(resourceClass.equals(OthersFolderResource.class))
 612                                                         folderPaths=((OthersFolderResource) restResource).getResource().getSubfolderPaths().toArray(new String[] {});
 613                                                 MultipleGetCommand.Cached[] cached = null;
 614                                                 if(restResource instanceof RestResourceWrapper)
 615                                                         cached=((RestResourceWrapper)restResource).getResource().getCache();
 616                                                 MultipleGetCommand<FolderResource> gf2 = new MultipleGetCommand<FolderResource>(FolderResource.class,
 617                                                                         folderPaths, cached) {
 618
 619                                                         @Override
 620                                                         public void onComplete() {
 621                                                                 res = new ArrayList<RestResource>();
 622                                                                 for(FolderResource r : getResult()){
 623                                                                         if(r.isDeleted()){
 624
 625                                                                         }
 626                                                                         else if(resourceClass.equals(MyFolderResource.class))
 627                                                                                 res.add(new MyFolderResource(r));
 628                                                                         else if(resourceClass.equals(SharedFolderResource.class)){
 629                                                                                 res.add(new SharedFolderResource(r));
 630                                                                         }
 631                                                                         else if(resourceClass.equals(TrashFolderResource.class))
 632                                                                                 res.add(new TrashFolderResource(r));
 633                                                                         else if(resourceClass.equals(OthersFolderResource.class))
 634                                                                                 res.add(new OthersFolderResource(r));
 635                                                                 }
 636                                                                 if(restResource instanceof RestResourceWrapper)
 637                                                                         ((RestResourceWrapper)restResource).getResource().setFolders(getResult());
 638                                                                 updateRowCount(res.size(), true);
 639                                                                 updateRowData(0,res);
 640                                                                 if(refresh!=null)
 641                                                                         refresh.onRefresh();
 642                                                         }
 643
 644                                                         @Override
 645                                                         public void onError(Throwable t) {
 646                                                                 GSS.get().displayError("Unable to fetch subfolders");
 647                                                                 GWT.log("Unable to fetch subfolders", t);
 648                                                         }
 649
 650                                                         @Override
 651                                                         public void onError(String p, Throwable throwable) {
 652                                                                 GWT.log("Path:"+p, throwable);
 653                                                         }
 654
 655                                                 };
 656                                                 DeferredCommand.addCommand(gf2);
 657
 658                                         }
 659
 660                                         @Override
 661                                         public void onError(Throwable t) {
 662
 663                                                 GWT.log("Error fetching root folder", t);
 664                                                 GSS.get().displayError("Unable to fetch root folder");
 665                                         }
 666
 667                                 };
 668                                 DeferredCommand.addCommand(gf);
 669                   }
 670         }
 671
 672
 673         class OthersDataProvider extends AsyncDataProvider<RestResource>{
 674                 private RestResource restResource;
 675                 private Class resourceClass;
 676                   public OthersDataProvider(RestResource department, Class resourceClass) {
 677                     super(new ProvidesKey<RestResource>() {
 678
 679                                 @Override
 680                                 public Object getKey(RestResource item) {
 681                                         return item.getUri();
 682                                 }});
 683                     this.restResource = department;
 684                     this.resourceClass=resourceClass;
 685                   }
 686
 687                   @Override
 688                   protected void onRangeChanged(final HasData<RestResource> view) {
 689                         refresh(null);
 690                   }
 691
 692                 /**
 693                  * Retrieve the restResource.
 694                  *
 695                  * @return the restResource
 696                  */
 697                 public RestResource getRestResource() {
 698                         return restResource;
 699                 }
 700
 701
 702                 /**
 703                  * Modify the restResource.
 704                  *
 705                  * @param restResource the restResource to set
 706                  */
 707                 public void setRestResource(RestResource restResource) {
 708                         this.restResource = restResource;
 709                 }
 710
 711                   public void refresh(final RefreshHandler refresh){
 712                           GetCommand<OthersResource> go = new GetCommand<OthersResource>(OthersResource.class,
 713                           restResource.getUri(), null) {
 714
 715                                   @Override
 716                                   public void onComplete() {
 717                                           final OthersResource others = getResult();
 718                           MultipleGetCommand<OtherUserResource> gogo = new MultipleGetCommand<OtherUserResource>(OtherUserResource.class,
 719                                                   others.getOthers().toArray(new String[] {}), null) {
 720
 721                                   @Override
 722                                   public void onComplete() {
 723                                           List<OtherUserResource> res = getResult();
 724                                           updateRowCount(res.size(), true);
 725                                           List<RestResource> r = new ArrayList<RestResource>();
 726                                           r.addAll(res);
 727                                                                           updateRowData(0,r);
 728                                   }
 729
 730                                   @Override
 731                                   public void onError(Throwable t) {
 732                                           GWT.log("Error fetching Others Root folder", t);
 733                                           GSS.get().displayError("Unable to fetch Others Root folder");
 734                                   }
 735
 736                                   @Override
 737                                   public void onError(String p, Throwable throwable) {
 738                                           GWT.log("Path:"+p, throwable);
 739                                   }
 740                           };
 741                           DeferredCommand.addCommand(gogo);
 742                                   }
 743
 744                                   @Override
 745                                   public void onError(Throwable t) {
 746                                           GWT.log("Error fetching Others Root folder", t);
 747                                           GSS.get().displayError("Unable to fetch Others Root folder");
 748                                   }
 749                           };
 750                           DeferredCommand.addCommand(go);
 751                   }
 752         }
 753
 754
 755
 756         /**
 757          * Retrieve the rootNodes.
 758          *
 759          * @return the rootNodes
 760          */
 761         public ListDataProvider<RestResource> getRootNodes() {
 762                 return rootNodes;
 763         }
 764
 765
 766         /**
 767          * Retrieve the mymap.
 768          *
 769          * @return the mymap
 770          */
 771         public Map<String, MyFolderDataProvider> getMymap() {
 772                 return mymap;
 773         }
 774
 775
 776         /**
 777          * Retrieve the sharedmap.
 778          *
 779          * @return the sharedmap
 780          */
 781         public Map<String, MyFolderDataProvider> getSharedmap() {
 782                 return sharedmap;
 783         }
 784
 785
 786         /**
 787          * Retrieve the othersmap.
 788          *
 789          * @return the othersmap
 790          */
 791         public Map<String, MyFolderDataProvider> getOthersmap() {
 792                 return othersmap;
 793         }
 794
 795
 796
 797
 798
 799
 800 }