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

   1 /*
   2  * Copyright 2011 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above
  13  *      copyright notice, this list of conditions and the following
  14  *      disclaimer in the documentation and/or other materials
  15  *      provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * The views and conclusions contained in the software and
  31  * documentation are those of the authors and should not be
  32  * interpreted as representing official policies, either expressed
  33  * or implied, of GRNET S.A.
  34  */
  35
  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
  48 import com.google.gwt.cell.client.ImageResourceCell;
  49 import com.google.gwt.cell.client.SafeHtmlCell;
  50 import com.google.gwt.cell.client.TextCell;
  51 import com.google.gwt.cell.client.ValueUpdater;
  52 import com.google.gwt.core.client.GWT;
  53 import com.google.gwt.event.dom.client.ContextMenuEvent;
  54 import com.google.gwt.event.dom.client.ContextMenuHandler;
  55 import com.google.gwt.i18n.client.DateTimeFormat;
  56 import com.google.gwt.resources.client.ImageResource;
  57 import com.google.gwt.safehtml.client.SafeHtmlTemplates;
  58 import com.google.gwt.safehtml.shared.SafeHtml;
  59 import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
  60 import com.google.gwt.user.cellview.client.CellTable;
  61 import com.google.gwt.user.cellview.client.Column;
  62 import com.google.gwt.user.client.Event;
  63 import com.google.gwt.user.client.ui.Composite;
  64 import com.google.gwt.user.client.ui.VerticalPanel;
  65 import com.google.gwt.view.client.ListDataProvider;
  66 import com.google.gwt.view.client.MultiSelectionModel;
  67 import com.google.gwt.view.client.ProvidesKey;
  68
  69 /**
  70  * A composite that displays the list of files in a particular folder.
  71  */
  72 public class FileList extends Composite {
  73
  74         ListDataProvider<File> provider = new ListDataProvider<File>();
  75
  76     /**
  77        * The styles applied to the table.
  78        */
  79     interface TableStyle extends CellTable.Style {
  80     }
  81
  82         interface TableResources extends CellTable.Resources {
  83             @Override
  84                 @Source({CellTable.Style.DEFAULT_CSS, "GssCellTable.css"})
  85             TableStyle cellTableStyle();
  86         }
  87
  88         static interface Templates extends SafeHtmlTemplates {
  89             Templates INSTANCE = GWT.create(Templates.class);
  90
  91             @Template("<div id='dragHelper' style='border:1px solid black; background-color:#ffffff; color:black; width:150px;z-index:100'></div>")
  92             SafeHtml outerHelper();
  93
  94         @Template("<span id='{0}'>{0}</span>")
  95         public SafeHtml filenameSpan(String filename);
  96
  97         @Template("<a href='{0}' title='{1}' rel='lytebox[mnf]' onclick='myLytebox.start(this, false, false); return false;'>(view)</a>")
  98         public SafeHtml viewLink(String link, String title);
  99
 100         @Template("<table><tr><td rowspan='3'>{0}</td><td style='font-size:95%;' id='{1}'>{1}</td></tr><tr><td>{2}</td></tr></table>")
 101         public SafeHtml rendelContactCell(String imageHtml, String name, String fileSize);
 102
 103         @Template("<span id='{0}' class='{1}'>{2}</span>")
 104         public SafeHtml spanWithIdAndClass(String id, String cssClass, String content);
 105         }
 106
 107         protected final DateTimeFormat formatter = DateTimeFormat.getFormat("d/M/yyyy h:mm a");
 108
 109         /**
 110          * Specifies that the images available for this composite will be the ones
 111          * available in FileContextMenu.
 112          */
 113         public interface Images extends FolderTreeView.Images {
 114
 115                 @Source("gr/grnet/pithos/resources/blank.gif")
 116                 ImageResource blank();
 117
 118                 @Source("gr/grnet/pithos/resources/asc.png")
 119                 ImageResource asc();
 120
 121                 @Source("gr/grnet/pithos/resources/desc.png")
 122                 ImageResource desc();
 123
 124                 @Source("gr/grnet/pithos/resources/mimetypes/document_shared.png")
 125                 ImageResource documentShared();
 126
 127                 @Source("gr/grnet/pithos/resources/mimetypes/kcmfontinst.png")
 128                 ImageResource wordprocessor();
 129
 130                 @Source("gr/grnet/pithos/resources/mimetypes/log.png")
 131                 ImageResource spreadsheet();
 132
 133                 @Source("gr/grnet/pithos/resources/mimetypes/kpresenter_kpr.png")
 134                 ImageResource presentation();
 135
 136                 @Source("gr/grnet/pithos/resources/mimetypes/acroread.png")
 137                 ImageResource pdf();
 138
 139                 @Source("gr/grnet/pithos/resources/mimetypes/image.png")
 140                 ImageResource image();
 141
 142                 @Source("gr/grnet/pithos/resources/mimetypes/video2.png")
 143                 ImageResource video();
 144
 145                 @Source("gr/grnet/pithos/resources/mimetypes/knotify.png")
 146                 ImageResource audio();
 147
 148                 @Source("gr/grnet/pithos/resources/mimetypes/html.png")
 149                 ImageResource html();
 150
 151                 @Source("gr/grnet/pithos/resources/mimetypes/txt.png")
 152                 ImageResource txt();
 153
 154                 @Source("gr/grnet/pithos/resources/mimetypes/ark2.png")
 155                 ImageResource zip();
 156
 157                 @Source("gr/grnet/pithos/resources/mimetypes/kcmfontinst_shared.png")
 158                 ImageResource wordprocessorShared();
 159
 160                 @Source("gr/grnet/pithos/resources/mimetypes/log_shared.png")
 161                 ImageResource spreadsheetShared();
 162
 163                 @Source("gr/grnet/pithos/resources/mimetypes/kpresenter_kpr_shared.png")
 164                 ImageResource presentationShared();
 165
 166                 @Source("gr/grnet/pithos/resources/mimetypes/acroread_shared.png")
 167                 ImageResource pdfShared();
 168
 169                 @Source("gr/grnet/pithos/resources/mimetypes/image_shared.png")
 170                 ImageResource imageShared();
 171
 172                 @Source("gr/grnet/pithos/resources/mimetypes/video2_shared.png")
 173                 ImageResource videoShared();
 174
 175                 @Source("gr/grnet/pithos/resources/mimetypes/knotify_shared.png")
 176                 ImageResource audioShared();
 177
 178                 @Source("gr/grnet/pithos/resources/mimetypes/html_shared.png")
 179                 ImageResource htmlShared();
 180
 181                 @Source("gr/grnet/pithos/resources/mimetypes/txt_shared.png")
 182                 ImageResource txtShared();
 183
 184                 @Source("gr/grnet/pithos/resources/mimetypes/ark2_shared.png")
 185                 ImageResource zipShared();
 186
 187         }
 188
 189         /**
 190          * The number of files in this folder.
 191          */
 192         int folderFileCount;
 193
 194         /**
 195          * Total folder size
 196          */
 197         long folderTotalSize;
 198
 199         /**
 200          * A cache of the files in the list.
 201          */
 202         private List<File> files;
 203
 204         /**
 205          * The widget's image bundle.
 206          */
 207         protected final Images images;
 208
 209         protected CellTable<File> celltable;
 210
 211         private final MultiSelectionModel<File> selectionModel;
 212
 213         protected final List<SortableHeader> allHeaders = new ArrayList<SortableHeader>();
 214
 215         SortableHeader nameHeader;
 216
 217     FolderTreeView treeView;
 218
 219     protected Pithos app;
 220
 221     /**
 222          * Construct the file list widget. This entails setting up the widget
 223          * layout, fetching the number of files in the current folder from the
 224          * server and filling the local file cache of displayed files with data from
 225          * the server, as well.
 226          *
 227          * @param _images
 228          */
 229         public FileList(final Pithos _app, Images _images, FolderTreeView _treeView) {
 230         app = _app;
 231                 images = _images;
 232         this.treeView = _treeView;
 233
 234         CellTable.Resources resources = GWT.create(TableResources.class);
 235
 236         ProvidesKey<File> keyProvider = new ProvidesKey<File>(){
 237
 238                         @Override
 239                         public Object getKey(File item) {
 240                                 return item.getUri();
 241                         }
 242                 };
 243
 244                 celltable = new CellTable<File>(10, resources, keyProvider);
 245         celltable.setWidth("100%");
 246         celltable.setStyleName("pithos-List");
 247
 248                 Column<File, ImageResource> status = new Column<File, ImageResource>(new ImageResourceCell() {
 249                     @Override
 250                 public boolean handlesSelection() {
 251                     return false;
 252                 }
 253                 })
 254         {
 255                  @Override
 256                  public ImageResource getValue(File entity) {
 257                      return getFileIcon(entity);
 258                  }
 259             };
 260             celltable.addColumn(status,"");
 261
 262         final Column<File,SafeHtml> nameColumn = new Column<File,SafeHtml>(new SafeHtmlCell()) {
 263
 264                         @Override
 265                         public SafeHtml getValue(File object) {
 266                                 SafeHtmlBuilder sb = new SafeHtmlBuilder();
 267                 sb.append(Templates.INSTANCE.filenameSpan(object.getName()));
 268                                 if (object.getContentType().endsWith("png") || object.getContentType().endsWith("gif") || object.getContentType().endsWith("jpeg")) {
 269                                 sb.appendHtmlConstant("&nbsp;")
 270                       .append(Templates.INSTANCE.viewLink(object.getUri(), object.getOwner() + " : " + object.getPath() + object.getName()));
 271                                 }
 272
 273                                 return sb.toSafeHtml();
 274                         }
 275
 276                 };
 277         celltable.addColumn(nameColumn, nameHeader = new SortableHeader("Name"));
 278                 allHeaders.add(nameHeader);
 279                 nameHeader.setUpdater(new FileValueUpdater(nameHeader, "name"));
 280
 281                 celltable.redrawHeaders();
 282
 283         Column<File,String> aColumn = new Column<File,String>(new TextCell()) {
 284                         @Override
 285                         public String getValue(File object) {
 286                                 // TODO Auto-generated method stub
 287                                 return object.getSizeAsString();
 288                         }
 289                 };
 290         SortableHeader aheader = new SortableHeader("Size");
 291         celltable.addColumn(aColumn, aheader);
 292                 allHeaders.add(aheader);
 293                 aheader.setUpdater(new FileValueUpdater(aheader, "size"));
 294
 295         aColumn = new Column<File,String>(new TextCell()) {
 296                         @Override
 297                         public String getValue(File object) {
 298                                 return formatter.format(object.getLastModified());
 299                         }
 300                 };
 301         aheader = new SortableHeader("Last Modified");
 302                 celltable.addColumn(aColumn, aheader);
 303                 allHeaders.add(aheader);
 304                 aheader.setUpdater(new FileValueUpdater(aheader, "date"));
 305
 306                 provider.addDataDisplay(celltable);
 307
 308                 VerticalPanel vp = new VerticalPanel();
 309                 vp.setWidth("100%");
 310
 311         vp.add(celltable);
 312
 313                 vp.setCellWidth(celltable, "100%");
 314         vp.addHandler(new ContextMenuHandler() {
 315             @Override
 316             public void onContextMenu(ContextMenuEvent event) {
 317                 TreeView tree = app.getSelectedTree();
 318                 if (tree != null && (tree.equals(app.getFolderTreeView()) || tree.equals(app.getOtherSharedTreeView()))) {
 319                         Folder selectedFolder = app.getSelection();
 320                         FileContextMenu contextMenu = new FileContextMenu(app, images, tree, selectedFolder, getSelectedFiles(), false);
 321                         int x = event.getNativeEvent().getClientX();
 322                         int y = event.getNativeEvent().getClientY();
 323                         contextMenu.setPopupPosition(x, y);
 324                         contextMenu.show();
 325                 }
 326             }
 327         }, ContextMenuEvent.getType());
 328                 initWidget(vp);
 329
 330                 selectionModel = new MultiSelectionModel<File>(keyProvider);
 331
 332                 celltable.setSelectionModel(selectionModel, GSSSelectionEventManager.<File> createDefaultManager());
 333 //              celltable.setPageSize(Pithos.VISIBLE_FILE_COUNT);
 334
 335                 sinkEvents(Event.ONCONTEXTMENU);
 336 //              sinkEvents(Event.ONMOUSEUP);
 337 //              sinkEvents(Event.ONMOUSEDOWN);
 338 //              sinkEvents(Event.ONCLICK);
 339 //              sinkEvents(Event.ONKEYDOWN);
 340 //              sinkEvents(Event.ONDBLCLICK);
 341                 Pithos.preventIESelection();
 342         }
 343
 344         public List<File> getSelectedFiles() {
 345         return new ArrayList<File>(selectionModel.getSelectedSet());
 346         }
 347
 348 //      @Override
 349 //      public void onBrowserEvent(Event event) {
 350 //
 351 //              if (files == null || files.size() == 0) {
 352 //                      if (DOM.eventGetType(event) == Event.ONCONTEXTMENU && getSelectedFiles().size() == 0) {
 353 //                              contextMenu = new FileContextMenu(images, false, true);
 354 //                contextMenu.show();
 355 //                              event.preventDefault();
 356 //                              event.cancelBubble(true);
 357 //                      }
 358 //                      return;
 359 //              }
 360 //              if (DOM.eventGetType(event) == Event.ONCONTEXTMENU && getSelectedFiles().size() != 0) {
 361 //                      GWT.log("*****GOING TO SHOW CONTEXT MENU ****", null);
 362 //                      contextMenu =  new FileContextMenu(images, false, false);
 363 //                      contextMenu = contextMenu.onEvent(event);
 364 //                      event.cancelBubble(true);
 365 //                      event.preventDefault();
 366 //              } else if (DOM.eventGetType(event) == Event.ONCONTEXTMENU && getSelectedFiles().size() == 0) {
 367 //                      contextMenu = new FileContextMenu(images, false, true);
 368 //                      contextMenu = contextMenu.onEmptyEvent(event);
 369 //                      event.cancelBubble(true);
 370 //                      event.preventDefault();
 371 //              } else if (DOM.eventGetType(event) == Event.ONDBLCLICK)
 372 //                      if (getSelectedFiles().size() == 1) {
 373 //                              Pithos app = app;
 374 //                              File file = getSelectedFiles().get(0);
 375 //                              Window.open(file.getUri(), "_blank", "");
 376 //                              event.preventDefault();
 377 //                              return;
 378 //                      }
 379 //              super.onBrowserEvent(event);
 380 //      }
 381
 382         /**
 383          * Update the display of the file list.
 384          */
 385         void update(@SuppressWarnings("unused") boolean sort) {
 386                 showCellTable();
 387         }
 388
 389         /**
 390          * Return the proper icon based on the MIME type of the file.
 391          *
 392          * @param file
 393          * @return the icon
 394          */
 395         protected ImageResource getFileIcon(File file) {
 396                 String mimetype = file.getContentType();
 397                 boolean shared = file.isShared();
 398                 if (mimetype == null)
 399                         return shared ? images.documentShared() : images.document();
 400                 mimetype = mimetype.toLowerCase();
 401                 if (mimetype.startsWith("application/pdf"))
 402                         return shared ? images.pdfShared() : images.pdf();
 403                 else if (mimetype.endsWith("excel"))
 404                         return shared ? images.spreadsheetShared() : images.spreadsheet();
 405                 else if (mimetype.endsWith("msword"))
 406                         return shared ? images.wordprocessorShared() : images.wordprocessor();
 407                 else if (mimetype.endsWith("powerpoint"))
 408                         return shared ? images.presentationShared() : images.presentation();
 409                 else if (mimetype.startsWith("application/zip") ||
 410                                         mimetype.startsWith("application/gzip") ||
 411                                         mimetype.startsWith("application/x-gzip") ||
 412                                         mimetype.startsWith("application/x-tar") ||
 413                                         mimetype.startsWith("application/x-gtar"))
 414                         return shared ? images.zipShared() : images.zip();
 415                 else if (mimetype.startsWith("text/html"))
 416                         return shared ? images.htmlShared() : images.html();
 417                 else if (mimetype.startsWith("text/plain"))
 418                         return shared ? images.txtShared() : images.txt();
 419                 else if (mimetype.startsWith("image/"))
 420                         return shared ? images.imageShared() : images.image();
 421                 else if (mimetype.startsWith("video/"))
 422                         return shared ? images.videoShared() : images.video();
 423                 else if (mimetype.startsWith("audio/"))
 424                         return shared ? images.audioShared() : images.audio();
 425                 return shared ? images.documentShared() : images.document();
 426         }
 427
 428         /**
 429          * Fill the file cache with data.
 430          */
 431         public void setFiles(final List<File> _files) {
 432                 files = new ArrayList<File>();
 433         for (File fres : _files)
 434                         files.add(fres);
 435                 Collections.sort(files, new Comparator<File>() {
 436
 437                         @Override
 438                         public int compare(File arg0, File arg1) {
 439                                 return arg0.getName().compareTo(arg1.getName());
 440                         }
 441
 442                 });
 443                 folderFileCount = files.size();
 444
 445                 nameHeader.setSorted(true);
 446                 nameHeader.toggleReverseSort();
 447                 for (SortableHeader otherHeader : allHeaders) {
 448                 if (otherHeader != nameHeader) {
 449                     otherHeader.setSorted(false);
 450                     otherHeader.setReverseSort(true);
 451                 }
 452             }
 453
 454         provider.setList(files);
 455         selectionModel.clear();
 456         }
 457
 458         /**
 459          * Does the list contains the requested filename
 460          *
 461          * @param fileName
 462          * @return true/false
 463          */
 464         public boolean contains(String fileName) {
 465                 for (int i = 0; i < files.size(); i++)
 466                         if (files.get(i).getName().equals(fileName))
 467                                 return true;
 468                 return false;
 469         }
 470
 471         public void clearSelectedRows() {
 472                 Iterator<File> it = selectionModel.getSelectedSet().iterator();
 473                 while(it.hasNext()){
 474                         selectionModel.setSelected(it.next(),false);
 475                 }
 476         }
 477
 478         /**
 479          *
 480          */
 481         public void selectAllRows() {
 482                 Iterator<File> it = provider.getList().iterator();
 483                 while(it.hasNext()){
 484                         selectionModel.setSelected(it.next(),true);
 485                 }
 486         }
 487
 488         protected void sortFiles(final String sortingProperty, final boolean sortingType){
 489                 Collections.sort(files, new Comparator<File>() {
 490
 491             @Override
 492             public int compare(File arg0, File arg1) {
 493                     if (sortingType){
 494                             if (sortingProperty.equals("version")) {
 495                                     return arg0.getVersion() - arg1.getVersion();
 496                             } else if (sortingProperty.equals("owner")) {
 497                                     return arg0.getOwner().compareTo(arg1.getOwner());
 498                             } else if (sortingProperty.equals("date")) {
 499                                     return arg0.getLastModified().compareTo(arg1.getLastModified());
 500                             } else if (sortingProperty.equals("size")) {
 501                                     return (int) (arg0.getBytes() - arg1.getBytes());
 502                             } else if (sortingProperty.equals("name")) {
 503                                     return arg0.getName().compareTo(arg1.getName());
 504                             } else if (sortingProperty.equals("path")) {
 505                                     return arg0.getUri().compareTo(arg1.getUri());
 506                             } else {
 507                                     return arg0.getName().compareTo(arg1.getName());
 508                             }
 509                     }
 510                     else if (sortingProperty.equals("version")) {
 511
 512                             return arg1.getVersion() - arg0.getVersion();
 513                     } else if (sortingProperty.equals("owner")) {
 514
 515                             return arg1.getOwner().compareTo(arg0.getOwner());
 516                     } else if (sortingProperty.equals("date")) {
 517
 518                             return arg1.getLastModified().compareTo(arg0.getLastModified());
 519                     } else if (sortingProperty.equals("size")) {
 520                             return (int) (arg1.getBytes() - arg0.getBytes());
 521                     } else if (sortingProperty.equals("name")) {
 522
 523                             return arg1.getName().compareTo(arg0.getName());
 524                     } else if (sortingProperty.equals("path")) {
 525
 526                             return arg1.getUri().compareTo(arg0.getUri());
 527                     } else {
 528
 529                             return arg1.getName().compareTo(arg0.getName());
 530                     }
 531             }
 532
 533                 });
 534         }
 535
 536         final class FileValueUpdater implements ValueUpdater<String>{
 537                 private String property;
 538                 private SortableHeader header;
 539                 /**
 540                  *
 541                  */
 542                 public FileValueUpdater(SortableHeader header,String property) {
 543                         this.property=property;
 544                         this.header=header;
 545                 }
 546                 @Override
 547                 public void update(@SuppressWarnings("unused") String value) {
 548                         header.setSorted(true);
 549                         header.toggleReverseSort();
 550
 551                 for (SortableHeader otherHeader : allHeaders) {
 552                   if (otherHeader != header) {
 553                     otherHeader.setSorted(false);
 554                     otherHeader.setReverseSort(true);
 555                   }
 556                 }
 557                 celltable.redrawHeaders();
 558                 sortFiles(property, header.getReverseSort());
 559                 FileList.this.update(true);
 560                 }
 561
 562         }
 563
 564         /**
 565          * Shows the files in the cellTable
 566      */
 567         private void showCellTable(){
 568                 provider.setList(files);
 569
 570                 provider.refresh();
 571
 572                 //celltable.redraw();
 573                 celltable.redrawHeaders();
 574         }
 575 }