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