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

   1 /*
   2  * Copyright 2011-2012 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
  36 package gr.grnet.pithos.web.client;
  37
  38 import gr.grnet.pithos.web.client.foldertree.File;
  39 import gr.grnet.pithos.web.client.foldertree.Folder;
  40 import gr.grnet.pithos.web.client.foldertree.FolderTreeView;
  41
  42 import java.util.ArrayList;
  43 import java.util.Collections;
  44 import java.util.Comparator;
  45 import java.util.Iterator;
  46 import java.util.List;
  47 import java.util.Set;
  48
  49 import com.google.gwt.cell.client.Cell.Context;
  50 import com.google.gwt.cell.client.ImageResourceCell;
  51 import com.google.gwt.cell.client.SafeHtmlCell;
  52 import com.google.gwt.cell.client.TextCell;
  53 import com.google.gwt.cell.client.ValueUpdater;
  54 import com.google.gwt.core.client.GWT;
  55 import com.google.gwt.event.dom.client.ContextMenuEvent;
  56 import com.google.gwt.event.dom.client.ContextMenuHandler;
  57 import com.google.gwt.i18n.client.DateTimeFormat;
  58 import com.google.gwt.resources.client.ImageResource;
  59 import com.google.gwt.resources.client.ImageResource.ImageOptions;
  60 import com.google.gwt.resources.client.ImageResource.RepeatStyle;
  61 import com.google.gwt.safehtml.client.SafeHtmlTemplates;
  62 import com.google.gwt.safehtml.shared.SafeHtml;
  63 import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
  64 import com.google.gwt.user.cellview.client.CellTable;
  65 import com.google.gwt.user.cellview.client.Column;
  66 import com.google.gwt.user.client.Command;
  67 import com.google.gwt.user.client.DOM;
  68 import com.google.gwt.user.client.Event;
  69 import com.google.gwt.user.client.Window;
  70 import com.google.gwt.user.client.ui.Composite;
  71 import com.google.gwt.user.client.ui.VerticalPanel;
  72 import com.google.gwt.view.client.ListDataProvider;
  73 import com.google.gwt.view.client.MultiSelectionModel;
  74 import com.google.gwt.view.client.ProvidesKey;
  75 import com.google.gwt.view.client.SelectionChangeEvent;
  76
  77 /**
  78  * A composite that displays the list of files in a particular folder.
  79  */
  80 public class FileList extends Composite {
  81
  82         ListDataProvider<File> provider = new ListDataProvider<File>();
  83
  84     /**
  85        * The styles applied to the table.
  86        */
  87     interface TableStyle extends CellTable.Style {
  88         String cellTableFirstColumnShared();
  89     }
  90
  91         interface TableResources extends CellTable.Resources {
  92             @Override
  93                 @Source({CellTable.Style.DEFAULT_CSS, "PithosCellTable.css"})
  94             TableStyle cellTableStyle();
  95
  96             @Source("share.png")
  97             @ImageOptions(repeatStyle = RepeatStyle.None)
  98             ImageResource cellTableSharedIcon();
  99         }
 100
 101         static interface Templates extends SafeHtmlTemplates {
 102             Templates INSTANCE = GWT.create(Templates.class);
 103
 104             @Template("<div id='dragHelper' style='border:1px solid black; background-color:#ffffff; color:black; width:150px;z-index:100'></div>")
 105             SafeHtml outerHelper();
 106
 107         @Template("<span id='{0}'>{0}</span>")
 108         public SafeHtml filenameSpan(String filename);
 109
 110         @Template("<a href='{0}' title='{1}' rel='lytebox[mnf]' onclick='myLytebox.start(this, false, false); return false;'>(view)</a>")
 111         public SafeHtml viewLink(String link, String title);
 112
 113         @Template("<table><tr><td rowspan='3'>{0}</td><td style='font-size:95%;' id='{1}'>{1}</td></tr><tr><td>{2}</td></tr></table>")
 114         public SafeHtml rendelContactCell(String imageHtml, String name, String fileSize);
 115
 116         @Template("<span id='{0}' class='{1}'>{2}</span>")
 117         public SafeHtml spanWithIdAndClass(String id, String cssClass, String content);
 118         }
 119
 120         protected final DateTimeFormat formatter = DateTimeFormat.getFormat("d/M/yyyy h:mm a");
 121
 122         /**
 123          * Specifies that the images available for this composite will be the ones
 124          * available in FileContextMenu.
 125          */
 126         public interface Images extends FolderTreeView.Images {
 127
 128                 @Source("gr/grnet/pithos/resources/blank.gif")
 129                 ImageResource blank();
 130
 131                 @Source("gr/grnet/pithos/resources/asc.png")
 132                 ImageResource asc();
 133
 134                 @Source("gr/grnet/pithos/resources/desc.png")
 135                 ImageResource desc();
 136
 137                 @Source("gr/grnet/pithos/resources/mimetypes/document_shared.png")
 138                 ImageResource documentShared();
 139
 140                 @Source("gr/grnet/pithos/resources/mimetypes/kcmfontinst.png")
 141                 ImageResource wordprocessor();
 142
 143                 @Source("gr/grnet/pithos/resources/mimetypes/log.png")
 144                 ImageResource spreadsheet();
 145
 146                 @Source("gr/grnet/pithos/resources/mimetypes/kpresenter_kpr.png")
 147                 ImageResource presentation();
 148
 149                 @Source("gr/grnet/pithos/resources/mimetypes/acroread.png")
 150                 ImageResource pdf();
 151
 152                 @Source("gr/grnet/pithos/resources/mimetypes/image.png")
 153                 ImageResource image();
 154
 155                 @Source("gr/grnet/pithos/resources/mimetypes/video2.png")
 156                 ImageResource video();
 157
 158                 @Source("gr/grnet/pithos/resources/mimetypes/knotify.png")
 159                 ImageResource audio();
 160
 161                 @Source("gr/grnet/pithos/resources/mimetypes/html.png")
 162                 ImageResource html();
 163
 164                 @Source("gr/grnet/pithos/resources/mimetypes/txt.png")
 165                 ImageResource txt();
 166
 167                 @Source("gr/grnet/pithos/resources/mimetypes/ark2.png")
 168                 ImageResource zip();
 169
 170                 @Source("gr/grnet/pithos/resources/mimetypes/kcmfontinst_shared.png")
 171                 ImageResource wordprocessorShared();
 172
 173                 @Source("gr/grnet/pithos/resources/mimetypes/log_shared.png")
 174                 ImageResource spreadsheetShared();
 175
 176                 @Source("gr/grnet/pithos/resources/mimetypes/kpresenter_kpr_shared.png")
 177                 ImageResource presentationShared();
 178
 179                 @Source("gr/grnet/pithos/resources/mimetypes/acroread_shared.png")
 180                 ImageResource pdfShared();
 181
 182                 @Source("gr/grnet/pithos/resources/mimetypes/image_shared.png")
 183                 ImageResource imageShared();
 184
 185                 @Source("gr/grnet/pithos/resources/mimetypes/video2_shared.png")
 186                 ImageResource videoShared();
 187
 188                 @Source("gr/grnet/pithos/resources/mimetypes/knotify_shared.png")
 189                 ImageResource audioShared();
 190
 191                 @Source("gr/grnet/pithos/resources/mimetypes/html_shared.png")
 192                 ImageResource htmlShared();
 193
 194                 @Source("gr/grnet/pithos/resources/mimetypes/txt_shared.png")
 195                 ImageResource txtShared();
 196
 197                 @Source("gr/grnet/pithos/resources/mimetypes/ark2_shared.png")
 198                 ImageResource zipShared();
 199
 200         }
 201
 202         /**
 203          * The number of files in this folder.
 204          */
 205         int folderFileCount;
 206
 207         /**
 208          * Total folder size
 209          */
 210         long folderTotalSize;
 211
 212         /**
 213          * A cache of the files in the list.
 214          */
 215         private List<File> files;
 216
 217         /**
 218          * The widget's image bundle.
 219          */
 220         protected final Images images;
 221
 222         protected CellTable<File> celltable;
 223
 224         private final MultiSelectionModel<File> selectionModel;
 225
 226         Column<File, String> pathColumn;
 227
 228         protected final List<SortableHeader> allHeaders = new ArrayList<SortableHeader>();
 229
 230         SortableHeader nameHeader;
 231
 232         SortableHeader pathHeader;
 233
 234     protected Pithos app;
 235
 236     /**
 237          * Construct the file list widget. This entails setting up the widget
 238          * layout, fetching the number of files in the current folder from the
 239          * server and filling the local file cache of displayed files with data from
 240          * the server, as well.
 241          *
 242          * @param _images
 243          */
 244         public FileList(final Pithos _app, Images _images) {
 245         app = _app;
 246                 images = _images;
 247
 248         final CellTable.Resources resources = GWT.create(TableResources.class);
 249
 250         ProvidesKey<File> keyProvider = new ProvidesKey<File>(){
 251
 252                         @Override
 253                         public Object getKey(File item) {
 254                                 return item.getUri();
 255                         }
 256                 };
 257
 258                 celltable = new CellTable<File>(10, resources, keyProvider);
 259         celltable.setWidth("100%");
 260         celltable.setStyleName("pithos-List");
 261
 262                 Column<File, ImageResource> status = new Column<File, ImageResource>(new ImageResourceCell() {
 263                     @Override
 264                 public boolean handlesSelection() {
 265                     return false;
 266                 }
 267                 })
 268         {
 269                  @Override
 270                  public ImageResource getValue(File entity) {
 271                      return getFileIcon(entity);
 272                  }
 273
 274                         @Override
 275                         public String getCellStyleNames(Context context, File object) {
 276                                 if (!object.getPermissions().isEmpty() && !object.isPublished())
 277                                         return ((TableStyle) resources.cellTableStyle()).cellTableFirstColumnShared();
 278                                 return super.getCellStyleNames(context, object);
 279                         }
 280             };
 281             celltable.addColumn(status,"");
 282
 283         final Column<File,SafeHtml> nameColumn = new Column<File,SafeHtml>(new SafeHtmlCell()) {
 284
 285                         @Override
 286                         public SafeHtml getValue(File object) {
 287                                 SafeHtmlBuilder sb = new SafeHtmlBuilder();
 288                                 sb.append(Templates.INSTANCE.filenameSpan(object.getName()));
 289                                 if (object.getContentType() != null && (object.getContentType().endsWith("png") || object.getContentType().endsWith("gif") || object.getContentType().endsWith("jpeg"))) {
 290                                 sb.appendHtmlConstant("&nbsp;")
 291                       .append(Templates.INSTANCE.viewLink(app.getApiPath() + object.getOwnerID() + object.getUri(), object.getName()));
 292                                 }
 293
 294                                 return sb.toSafeHtml();
 295                         }
 296
 297                 };
 298         celltable.addColumn(nameColumn, nameHeader = new SortableHeader("Name", "name"));
 299                 allHeaders.add(nameHeader);
 300                 nameHeader.setUpdater(new FileValueUpdater(nameHeader));
 301                 nameHeader.setSorted(true);
 302                 nameHeader.setReverseSort(true);
 303
 304                 celltable.redrawHeaders();
 305
 306                 pathColumn = new Column<File, String>(new TextCell()) {
 307
 308                         @Override
 309                         public String getValue(File f) {
 310                                 String path;
 311                                 if (!app.getSelectedTree().equals(app.mysharedTreeView)) {
 312                                         path = f.getParent().getPrefix();
 313                                         if (path.length() == 0)
 314                                                 path = "/";
 315                                 }
 316                                 else {
 317                                         path = f.getPath();
 318                                         if (path.lastIndexOf("/") != -1)
 319                                                 path = path.substring(0, path.lastIndexOf("/"));
 320                                         else
 321                                                 path = "/";
 322                                 }
 323                                 return path;
 324                         }
 325                 };
 326                 pathHeader = new SortableHeader("Path", "path");
 327                 celltable.addColumn(pathColumn, pathHeader);
 328                 allHeaders.add(pathHeader);
 329                 pathHeader.setUpdater(new FileValueUpdater(pathHeader));
 330
 331         Column<File,String> aColumn = new Column<File,String>(new TextCell()) {
 332                         @Override
 333                         public String getValue(File object) {
 334                                 return object.getSizeAsString();
 335                         }
 336                 };
 337         SortableHeader aheader = new SortableHeader("Size", "size");
 338         celltable.addColumn(aColumn, aheader);
 339                 allHeaders.add(aheader);
 340                 aheader.setUpdater(new FileValueUpdater(aheader));
 341
 342         aColumn = new Column<File,String>(new TextCell()) {
 343                         @Override
 344                         public String getValue(File object) {
 345                                 return object.getLastModified() != null ? formatter.format(object.getLastModified()) : "";
 346                         }
 347                 };
 348         aheader = new SortableHeader("Last Modified", "date");
 349                 celltable.addColumn(aColumn, aheader);
 350                 allHeaders.add(aheader);
 351                 aheader.setUpdater(new FileValueUpdater(aheader));
 352
 353                 provider.addDataDisplay(celltable);
 354
 355                 VerticalPanel vp = new VerticalPanel();
 356                 vp.setWidth("100%");
 357                 vp.addStyleName("pithos-FileListContainer");
 358
 359         vp.add(celltable);
 360
 361                 vp.setCellWidth(celltable, "100%");
 362         vp.addHandler(new ContextMenuHandler() {
 363             @Override
 364             public void onContextMenu(final ContextMenuEvent event) {
 365                 final TreeView tree = app.getSelectedTree();
 366                 if (tree != null) {
 367                         final int x = event.getNativeEvent().getClientX();
 368                         final int y = event.getNativeEvent().getClientY();
 369                         final Folder selectedFolder = app.getSelection();
 370                         app.scheduleFolderHeadCommand(selectedFolder, new Command() {
 371
 372                                                 @Override
 373                                                 public void execute() {
 374                                                         final List<File> selectedFiles = getSelectedFiles();
 375                                                         Iterator<File> iter = selectedFiles.iterator();
 376                                                         iterateFilesHeadCommand(iter, new Command() {
 377
 378                                                                 @Override
 379                                                                 public void execute() {
 380                                                         FileContextMenu contextMenu = new FileContextMenu(app, images, tree, selectedFolder, selectedFiles);
 381                                                         contextMenu.setPopupPosition(x, y);
 382                                                         contextMenu.show();
 383                                                                 }
 384                                                         });
 385                                                 }
 386                                         });
 387                 }
 388             }
 389         }, ContextMenuEvent.getType());
 390                 initWidget(vp);
 391
 392                 selectionModel = new MultiSelectionModel<File>(keyProvider);
 393                 selectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 394
 395                         @Override
 396                         public void onSelectionChange(SelectionChangeEvent event) {
 397                                 app.showRelevantToolbarButtons();
 398                         }
 399                 });
 400
 401                 celltable.setSelectionModel(selectionModel, PithosSelectionEventManager.<File> createDefaultManager());
 402
 403                 sinkEvents(Event.ONCONTEXTMENU);
 404                 sinkEvents(Event.ONDBLCLICK);
 405                 Pithos.preventIESelection();
 406         }
 407
 408         public List<File> getSelectedFiles() {
 409         return new ArrayList<File>(selectionModel.getSelectedSet());
 410         }
 411
 412         @Override
 413         public void onBrowserEvent(Event event) {
 414
 415                 if (DOM.eventGetType(event) == Event.ONDBLCLICK)
 416                         if (getSelectedFiles().size() == 1) {
 417                                 File file = getSelectedFiles().get(0);
 418                                 Window.open(app.getApiPath() + file.getOwnerID() + file.getUri(), "_blank", "");
 419                                 event.preventDefault();
 420                                 return;
 421                         }
 422                 super.onBrowserEvent(event);
 423         }
 424
 425         /**
 426          * Update the display of the file list.
 427          */
 428         void update() {
 429                 showCellTable();
 430         }
 431
 432         /**
 433          * Return the proper icon based on the MIME type of the file.
 434          *
 435          * @param file
 436          * @return the icon
 437          */
 438         protected ImageResource getFileIcon(File file) {
 439                 String mimetype = file.getContentType();
 440                 boolean published = file.isPublished();
 441                 if (mimetype == null)
 442                         return published ? images.documentShared() : images.document();
 443                 mimetype = mimetype.toLowerCase();
 444                 if (mimetype.startsWith("application/pdf"))
 445                         return published ? images.pdfShared() : images.pdf();
 446                 else if (mimetype.endsWith("excel"))
 447                         return published ? images.spreadsheetShared() : images.spreadsheet();
 448                 else if (mimetype.endsWith("msword"))
 449                         return published ? images.wordprocessorShared() : images.wordprocessor();
 450                 else if (mimetype.endsWith("powerpoint"))
 451                         return published ? images.presentationShared() : images.presentation();
 452                 else if (mimetype.startsWith("application/zip") ||
 453                                         mimetype.startsWith("application/gzip") ||
 454                                         mimetype.startsWith("application/x-gzip") ||
 455                                         mimetype.startsWith("application/x-tar") ||
 456                                         mimetype.startsWith("application/x-gtar"))
 457                         return published ? images.zipShared() : images.zip();
 458                 else if (mimetype.startsWith("text/html"))
 459                         return published ? images.htmlShared() : images.html();
 460                 else if (mimetype.startsWith("text/plain"))
 461                         return published ? images.txtShared() : images.txt();
 462                 else if (mimetype.startsWith("image/"))
 463                         return published ? images.imageShared() : images.image();
 464                 else if (mimetype.startsWith("video/"))
 465                         return published ? images.videoShared() : images.video();
 466                 else if (mimetype.startsWith("audio/"))
 467                         return published ? images.audioShared() : images.audio();
 468                 return published ? images.documentShared() : images.document();
 469         }
 470
 471         /**
 472          * Fill the file cache with data.
 473          */
 474         public void setFiles(final List<File> _files) {
 475                 if (!app.getSelectedTree().equals(app.mysharedTreeView)) {
 476                         if (celltable.getColumnIndex(pathColumn) != -1)
 477                                 celltable.removeColumn(pathColumn);
 478                 }
 479                 else {
 480                         if (celltable.getColumnIndex(pathColumn) == -1)
 481                                 celltable.insertColumn(2, pathColumn, pathHeader);
 482                 }
 483                 files = new ArrayList<File>();
 484         for (File fres : _files) {
 485                         files.add(fres);
 486         }
 487
 488                 folderFileCount = files.size();
 489
 490                 for (SortableHeader header : allHeaders) {
 491                         if (header.isSorted())
 492                                 sortFiles(header.getProperty(), header.getReverseSort());
 493                 }
 494
 495                 List<File> previousSelection = getSelectedFiles(); //Keep the previous selection
 496
 497                 provider.getList().clear();
 498         provider.setList(files);
 499         selectionModel.clear();
 500         for (File f : files) {
 501                 if (previousSelection.contains(f))
 502                         selectionModel.setSelected(f, true);
 503         }
 504
 505         app.showFolderStatistics(folderFileCount);
 506         celltable.setPageSize(folderFileCount);
 507         }
 508
 509         /**
 510          * Does the list contains the requested filename
 511          *
 512          * @param fileName
 513          * @return true/false
 514          */
 515         public boolean contains(String fileName) {
 516                 for (int i = 0; i < files.size(); i++)
 517                         if (files.get(i).getName().equals(fileName))
 518                                 return true;
 519                 return false;
 520         }
 521
 522         public void clearSelectedRows() {
 523                 Iterator<File> it = selectionModel.getSelectedSet().iterator();
 524                 while(it.hasNext()){
 525                         selectionModel.setSelected(it.next(),false);
 526                 }
 527         }
 528
 529         /**
 530          *
 531          */
 532         public void selectAllRows() {
 533                 Iterator<File> it = provider.getList().iterator();
 534                 while(it.hasNext()){
 535                         selectionModel.setSelected(it.next(),true);
 536                 }
 537         }
 538
 539         protected void sortFiles(final String sortingProperty, final boolean sortingType){
 540                 Collections.sort(files, new Comparator<File>() {
 541
 542             @Override
 543             public int compare(File arg0, File arg1) {
 544                     if (sortingType){
 545                             if (sortingProperty.equals("version")) {
 546                                     return arg0.getVersion() - arg1.getVersion();
 547                             } else if (sortingProperty.equals("owner")) {
 548                                     return arg0.getOwnerID().compareTo(arg1.getOwnerID());
 549                             } else if (sortingProperty.equals("date")) {
 550                                         if (arg0.getLastModified() != null && arg1.getLastModified() != null)
 551                                                 return arg0.getLastModified().compareTo(arg1.getLastModified());
 552                                         return 0;
 553                             } else if (sortingProperty.equals("size")) {
 554                                     return (int) (arg0.getBytes() - arg1.getBytes());
 555                             } else if (sortingProperty.equals("name")) {
 556                                     return arg0.getName().compareTo(arg1.getName());
 557                             } else if (sortingProperty.equals("path")) {
 558                                     return arg0.getUri().compareTo(arg1.getUri());
 559                             } else {
 560                                     return arg0.getName().compareTo(arg1.getName());
 561                             }
 562                     }
 563                     else if (sortingProperty.equals("version")) {
 564
 565                             return arg1.getVersion() - arg0.getVersion();
 566                     } else if (sortingProperty.equals("owner")) {
 567
 568                             return arg1.getOwnerID().compareTo(arg0.getOwnerID());
 569                     } else if (sortingProperty.equals("date")) {
 570
 571                             return arg1.getLastModified().compareTo(arg0.getLastModified());
 572                     } else if (sortingProperty.equals("size")) {
 573                             return (int) (arg1.getBytes() - arg0.getBytes());
 574                     } else if (sortingProperty.equals("name")) {
 575
 576                             return arg1.getName().compareTo(arg0.getName());
 577                     } else if (sortingProperty.equals("path")) {
 578
 579                             return arg1.getUri().compareTo(arg0.getUri());
 580                     } else {
 581
 582                             return arg1.getName().compareTo(arg0.getName());
 583                     }
 584             }
 585
 586                 });
 587         }
 588
 589         final class FileValueUpdater implements ValueUpdater<String>{
 590                 private SortableHeader header;
 591                 /**
 592                  *
 593                  */
 594                 public FileValueUpdater(SortableHeader header) {
 595                         this.header=header;
 596                 }
 597                 @Override
 598                 public void update(String value) {
 599                         header.setSorted(true);
 600                         header.toggleReverseSort();
 601
 602                 for (SortableHeader otherHeader : allHeaders) {
 603                   if (otherHeader != header) {
 604                     otherHeader.setSorted(false);
 605                     otherHeader.setReverseSort(true);
 606                   }
 607                 }
 608                 celltable.redrawHeaders();
 609                 sortFiles(header.getProperty(), header.getReverseSort());
 610                 FileList.this.update();
 611                 }
 612
 613         }
 614
 615         /**
 616          * Shows the files in the cellTable
 617      */
 618         private void showCellTable(){
 619                 provider.setList(files);
 620
 621                 provider.refresh();
 622
 623                 //celltable.redraw();
 624                 celltable.redrawHeaders();
 625         }
 626
 627         void iterateFilesHeadCommand(final Iterator<File> iter, final Command callback) {
 628                 if (iter.hasNext()) {
 629                         File f = iter.next();
 630                         app.scheduleFileHeadCommand(f, new Command() {
 631
 632                                 @Override
 633                                 public void execute() {
 634                                         iterateFilesHeadCommand(iter, callback);
 635                                 }
 636                         });
 637                 }
 638                 else if (callback != null)
 639                         callback.execute();
 640         }
 641
 642         public void selectByUrl(List<String> selectedUrls) {
 643                 Set<File> previous = selectionModel.getSelectedSet();
 644                 for (File f : previous)
 645                         selectionModel.setSelected(f, false);
 646
 647                 int i = 0;
 648                 boolean scrolled = false;
 649                 for (File f : files) {
 650                         if (selectedUrls.contains(app.getApiPath() + f.getOwnerID() + f.getUri())) {
 651                                 selectionModel.setSelected(f, true);
 652                                 if (!scrolled) {
 653                                         celltable.getRowElement(i).getCells().getItem(0).scrollIntoView();
 654                                         scrolled = true;
 655                                 }
 656                         }
 657                         i++;
 658                 }
 659         }
 660 }