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

   1 /*\r
   2  * Copyright 2007, 2008, 2009 Electronic Business Systems Ltd.\r
   3  *\r
   4  * This file is part of GSS.\r
   5  *\r
   6  * GSS is free software: you can redistribute it and/or modify\r
   7  * it under the terms of the GNU General Public License as published by\r
   8  * the Free Software Foundation, either version 3 of the License, or\r
   9  * (at your option) any later version.\r
  10  *\r
  11  * GSS is distributed in the hope that it will be useful,\r
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14  * GNU General Public License for more details.\r
  15  *\r
  16  * You should have received a copy of the GNU General Public License\r
  17  * along with GSS.  If not, see <http://www.gnu.org/licenses/>.\r
  18  */\r
  19 package gr.ebs.gss.client;\r
  20 \r
  21 import gr.ebs.gss.client.dnd.DnDSimpleFocusPanel;\r
  22 import gr.ebs.gss.client.rest.GetCommand;\r
  23 import gr.ebs.gss.client.rest.RestCommand;\r
  24 import gr.ebs.gss.client.rest.RestException;\r
  25 import gr.ebs.gss.client.rest.resource.FileResource;\r
  26 import gr.ebs.gss.client.rest.resource.SearchResource;\r
  27 import gr.ebs.gss.client.rest.resource.UserResource;\r
  28 \r
  29 import java.util.ArrayList;\r
  30 import java.util.Collections;\r
  31 import java.util.Comparator;\r
  32 import java.util.List;\r
  33 \r
  34 import com.google.gwt.core.client.GWT;\r
  35 import com.google.gwt.dom.client.NativeEvent;\r
  36 import com.google.gwt.event.dom.client.ClickEvent;\r
  37 import com.google.gwt.event.dom.client.ClickHandler;\r
  38 import com.google.gwt.http.client.URL;\r
  39 import com.google.gwt.i18n.client.DateTimeFormat;\r
  40 import com.google.gwt.resources.client.ClientBundle;\r
  41 import com.google.gwt.resources.client.ImageResource;\r
  42 import com.google.gwt.user.client.DOM;\r
  43 import com.google.gwt.user.client.DeferredCommand;\r
  44 import com.google.gwt.user.client.Event;\r
  45 import com.google.gwt.user.client.IncrementalCommand;\r
  46 import com.google.gwt.user.client.Window;\r
  47 import com.google.gwt.user.client.ui.AbstractImagePrototype;\r
  48 import com.google.gwt.user.client.ui.Composite;\r
  49 import com.google.gwt.user.client.ui.Grid;\r
  50 import com.google.gwt.user.client.ui.HTML;\r
  51 import com.google.gwt.user.client.ui.HasHorizontalAlignment;\r
  52 import com.google.gwt.user.client.ui.HorizontalPanel;\r
  53 import com.google.gwt.user.client.ui.VerticalPanel;\r
  54 import com.google.gwt.user.client.ui.HTMLTable.Cell;\r
  55 \r
  56 /**\r
  57  * A composite that displays a list of search results for a particular query on\r
  58  * files.\r
  59  */\r
  60 public class SearchResults extends Composite implements  ClickHandler {\r
  61 \r
  62         private HTML prevButton = new HTML("<a href='javascript:;'>&lt; Previous</a>", true);\r
  63 \r
  64         private HTML nextButton = new HTML("<a href='javascript:;'>Next &gt;</a>", true);\r
  65 \r
  66         private String showingStats = "";\r
  67 \r
  68         private int startIndex = 0;\r
  69 \r
  70         /**\r
  71          * A constant that denotes the completion of an IncrementalCommand.\r
  72          */\r
  73         public static final boolean DONE = false;\r
  74 \r
  75         private boolean clickControl = false;\r
  76 \r
  77         private boolean clickShift = false;\r
  78 \r
  79         private int firstShift = -1;\r
  80 \r
  81         private ArrayList<Integer> selectedRows = new ArrayList<Integer>();\r
  82 \r
  83         /**\r
  84          * The context menu for the selected file.\r
  85          */\r
  86         final DnDSimpleFocusPanel contextMenu;\r
  87 \r
  88         /**\r
  89          * Specifies that the images available for this composite will be the ones\r
  90          * available in FileContextMenu.\r
  91          */\r
  92         public interface Images extends ClientBundle,FileContextMenu.Images, Folders.Images {\r
  93 \r
  94                 @Source("gr/ebs/gss/resources/blank.gif")\r
  95                 ImageResource blank();\r
  96 \r
  97                 @Source("gr/ebs/gss/resources/asc.png")\r
  98                 ImageResource asc();\r
  99 \r
 100                 @Source("gr/ebs/gss/resources/desc.png")\r
 101                 ImageResource desc();\r
 102         }\r
 103 \r
 104         /**\r
 105          * A label with the number of files in this folder.\r
 106          */\r
 107         private HTML countLabel = new HTML();\r
 108 \r
 109         /**\r
 110          * The table widget with the file list.\r
 111          */\r
 112         private FileTable table;\r
 113 \r
 114         /**\r
 115          * The navigation bar for paginating the results.\r
 116          */\r
 117         private HorizontalPanel navBar = new HorizontalPanel();\r
 118 \r
 119         /**\r
 120          * The number of files in the search results\r
 121          */\r
 122         private int folderFileCount;\r
 123 \r
 124         /**\r
 125          * Total search results size\r
 126          */\r
 127         private long folderTotalSize;\r
 128 \r
 129         /**\r
 130          * A cache of the files in the list.\r
 131          */\r
 132         private List<FileResource> files;\r
 133 \r
 134         /**\r
 135          * The widget's image bundle.\r
 136          */\r
 137         private final Images images;\r
 138 \r
 139         private String sortingProperty = "name";\r
 140 \r
 141         private boolean sortingType = true;\r
 142 \r
 143         private HTML nameLabel;\r
 144 \r
 145         private HTML versionLabel;\r
 146 \r
 147         private HTML sizeLabel;\r
 148 \r
 149         private HTML dateLabel;\r
 150 \r
 151         private HTML ownerLabel;\r
 152 \r
 153         private HTML pathLabel;\r
 154 \r
 155         private HTML searchResults = new HTML("Results for search:");\r
 156 \r
 157         /**\r
 158          * Construct the file list widget. This entails setting up the widget\r
 159          * layout, fetching the number of files in the current folder from the\r
 160          * server and filling the local file cache of displayed files with data from\r
 161          * the server, as well.\r
 162          *\r
 163          * @param _images\r
 164          */\r
 165         public SearchResults(final Images _images) {\r
 166                 images = _images;\r
 167                 final GSS app = GSS.get();\r
 168                 table = new FileTable(GSS.VISIBLE_FILE_COUNT + 1, 8) {\r
 169 \r
 170                         @Override\r
 171                         public void onBrowserEvent(Event event) {\r
 172                                 if (DOM.eventGetType(event) == Event.ONMOUSEDOWN && DOM.eventGetButton(event) == NativeEvent.BUTTON_RIGHT){\r
 173                                         if (DOM.eventGetCtrlKey(event))\r
 174                                                 clickControl = true;\r
 175                                         else\r
 176                                                 clickControl = false;\r
 177                                         if (DOM.eventGetShiftKey(event)) {\r
 178                                                 clickShift = true;\r
 179                                                 if (selectedRows.size() == 1)\r
 180                                                         firstShift = selectedRows.get(0) - startIndex;\r
 181                                                 //event.preventDefault();\r
 182                                         } else {\r
 183                                                 clickShift = false;\r
 184                                                 firstShift = -1;\r
 185                                                 //event.preventDefault();\r
 186                                         }\r
 187                                         int ri = table.getRowForEvent2(event);\r
 188                                         if(ri != -1)\r
 189                                                 if(!selectedRows.contains(ri-1))\r
 190                                                         onRowClicked(ri, false);\r
 191                                 }\r
 192 \r
 193                                 if (files == null || files.size() == 0) {\r
 194                                         if (DOM.eventGetType(event) == Event.ONCONTEXTMENU && selectedRows.size() == 0) {\r
 195                                                 FileContextMenu fm = new FileContextMenu(images, false, true);\r
 196                                                 fm.onEmptyEvent(event);\r
 197                                         }\r
 198                                         return;\r
 199                                 }\r
 200                                 if (DOM.eventGetType(event) == Event.ONCONTEXTMENU && selectedRows.size() != 0) {\r
 201                                         FileContextMenu fm = new FileContextMenu(images, false, false);\r
 202                                         fm.onEvent(event);\r
 203                                 } else if (DOM.eventGetType(event) == Event.ONCONTEXTMENU && selectedRows.size() == 0) {\r
 204                                         FileContextMenu fm = new FileContextMenu(images, false, true);\r
 205                                         fm.onEmptyEvent(event);\r
 206                                 } else if (DOM.eventGetType(event) == Event.ONDBLCLICK)\r
 207                                         if (getSelectedFiles().size() == 1) {\r
 208                                                 FileResource file = getSelectedFiles().get(0);\r
 209                                                 String dateString = RestCommand.getDate();\r
 210                                                 String resource = file.getUri().substring(app.getApiPath().length() - 1, file.getUri().length());\r
 211                                                 String sig = app.getCurrentUserResource().getUsername() + " " +\r
 212                                                                 RestCommand.calculateSig("GET", dateString, resource,\r
 213                                                                 RestCommand.base64decode(app.getToken()));\r
 214                                                 Window.open(file.getUri() + "?Authorization=" + URL.encodeComponent(sig) + "&Date=" + URL.encodeComponent(dateString), "_blank", "");\r
 215                                                 event.preventDefault();\r
 216                                                 return;\r
 217                                         }\r
 218                                 if (DOM.eventGetType(event) == Event.ONCLICK) {\r
 219                                         if (DOM.eventGetCtrlKey(event))\r
 220                                                 clickControl = true;\r
 221                                         else\r
 222                                                 clickControl = false;\r
 223                                         if (DOM.eventGetShiftKey(event)) {\r
 224                                                 clickShift = true;\r
 225                                                 if (selectedRows.size() == 1)\r
 226                                                         firstShift = selectedRows.get(0) - startIndex;\r
 227                                                 //event.preventDefault();\r
 228                                         } else {\r
 229                                                 clickShift = false;\r
 230                                                 firstShift = -1;\r
 231                                                 //event.preventDefault();\r
 232                                         }\r
 233                                 }\r
 234                                 super.onBrowserEvent(event);\r
 235                         }\r
 236                 };\r
 237                 prevButton.addClickHandler(this);\r
 238                 nextButton.addClickHandler(this);\r
 239 \r
 240                 contextMenu = new DnDSimpleFocusPanel(new HTML(AbstractImagePrototype.create(images.fileContextMenu()).getHTML()));\r
 241                 contextMenu.addClickHandler(new FileContextMenu(images, false, false));\r
 242                 app.getDragController().makeDraggable(contextMenu);\r
 243 \r
 244                 // Setup the table.\r
 245                 table.setCellSpacing(0);\r
 246                 table.setCellPadding(2);\r
 247                 table.setWidth("100%");\r
 248 \r
 249                 // Hook up events.\r
 250                 table.addClickHandler(new ClickHandler() {\r
 251 \r
 252                         @Override\r
 253                         public void onClick(ClickEvent event) {\r
 254                                 Cell cell = table.getCellForEvent(event);\r
 255                                 onRowClicked(cell.getRowIndex(),true);\r
 256                         }\r
 257                 });\r
 258 \r
 259                 // Create the 'navigation' bar at the upper-right.\r
 260                 HorizontalPanel innerNavBar = new HorizontalPanel();\r
 261                 innerNavBar.setStyleName("gss-ListNavBar");\r
 262                 innerNavBar.setSpacing(8);\r
 263                 innerNavBar.add(prevButton);\r
 264                 innerNavBar.add(countLabel);\r
 265                 innerNavBar.add(nextButton);\r
 266                 navBar.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_RIGHT);\r
 267                 navBar.add(innerNavBar);\r
 268                 navBar.setWidth("100%");\r
 269                 VerticalPanel vp = new VerticalPanel();\r
 270                 vp.add(searchResults);\r
 271                 searchResults.addStyleName("gss-searchLabel");\r
 272                 vp.add(table);\r
 273                 initWidget(vp);\r
 274                 table.setStyleName("gss-List");\r
 275                 initTable();\r
 276                 DeferredCommand.addCommand(new IncrementalCommand() {\r
 277 \r
 278                         public boolean execute() {\r
 279                                 return fetchRootFolder();\r
 280                         }\r
 281                 });\r
 282                 table.sinkEvents(Event.ONCONTEXTMENU);\r
 283                 table.sinkEvents(Event.ONMOUSEUP);\r
 284                 table.sinkEvents(Event.ONMOUSEDOWN);\r
 285                 table.sinkEvents(Event.ONCLICK);\r
 286                 table.sinkEvents(Event.ONKEYDOWN);\r
 287                 table.sinkEvents(Event.ONDBLCLICK);\r
 288                 preventIESelection();\r
 289         }\r
 290 \r
 291         public void onClick(ClickEvent event) {\r
 292                 if (event.getSource() == nextButton) {\r
 293                         // Move forward a page.\r
 294                         clearSelectedRows();\r
 295                         startIndex += GSS.VISIBLE_FILE_COUNT;\r
 296                         if (startIndex >= folderFileCount)\r
 297                                 startIndex -= GSS.VISIBLE_FILE_COUNT;\r
 298                         else\r
 299                                 update(false);\r
 300                 } else if (event.getSource() == prevButton) {\r
 301                         clearSelectedRows();\r
 302                         // Move back a page.\r
 303                         startIndex -= GSS.VISIBLE_FILE_COUNT;\r
 304                         if (startIndex < 0)\r
 305                                 startIndex = 0;\r
 306                         else\r
 307                                 update(false);\r
 308                 }\r
 309         }\r
 310 \r
 311         /**\r
 312          * Retrieve the root folder for the current user.\r
 313          *\r
 314          * @return true if the retrieval was successful\r
 315          */\r
 316         protected boolean fetchRootFolder() {\r
 317                 UserResource user = GSS.get().getCurrentUserResource();\r
 318                 if (user == null)\r
 319                         return !DONE;\r
 320                 updateFileCache("");\r
 321                 return DONE;\r
 322         }\r
 323 \r
 324         public void onRowClicked(int row, boolean toggleSelection) {\r
 325                 // Select the row that was clicked (-1 to account for header row).\r
 326                 if (row > folderFileCount)\r
 327                         return;\r
 328                 if (clickShift) {\r
 329                         GWT.log("ROW is:" + row + " fs:" + firstShift, null);\r
 330                         if (firstShift == -1)\r
 331                                 firstShift = row;\r
 332                         else if (row > firstShift) {\r
 333                                 clearSelectedRows();\r
 334                                 for (int i = firstShift; i < row; i++) {\r
 335                                         selectedRows.add(startIndex + i);\r
 336                                         styleRow(i, true);\r
 337                                 }\r
 338                                 GSS.get().setCurrentSelection(getSelectedFiles());\r
 339                                 //contextMenu.setFiles(getSelectedFiles());\r
 340                                 table.setWidget(row, 0, contextMenu);\r
 341                         } else if (row != -1 && row == firstShift) {\r
 342                                 selectedRows.add(row);\r
 343                                 selectedRows.add(row - 1);\r
 344                                 styleRow(row, true);\r
 345                                 styleRow(row - 1, true);\r
 346                         } else if (row < firstShift) {\r
 347                                 GWT.log("ROW is:" + row + " fs:" + firstShift, null);\r
 348                                 clearSelectedRows();\r
 349 \r
 350                                 for (int i = firstShift; i >= row - 1; i--) {\r
 351                                         selectedRows.add(startIndex + i);\r
 352                                         styleRow(i, true);\r
 353                                 }\r
 354                                 GSS.get().setCurrentSelection(getSelectedFiles());\r
 355                                 table.setWidget(row, 0, contextMenu);\r
 356                                 //contextMenu.setFiles(getSelectedFiles());\r
 357                         }\r
 358 \r
 359                 } else if (row > 0)\r
 360                         selectRow(row - 1, toggleSelection);\r
 361 \r
 362         }\r
 363 \r
 364         /**\r
 365          * Initializes the table so that it contains enough rows for a full page of\r
 366          * files.\r
 367          */\r
 368         private void initTable() {\r
 369 \r
 370                 nameLabel = new HTML("Name");\r
 371                 nameLabel.addClickHandler(new ClickHandler() {\r
 372                         @Override\r
 373                         public void onClick(ClickEvent event) {\r
 374                                 sortFiles("name");\r
 375                         }\r
 376 \r
 377                 });\r
 378                 versionLabel = new HTML("Version");\r
 379                 versionLabel.addClickHandler(new ClickHandler() {\r
 380                         @Override\r
 381                         public void onClick(ClickEvent event) {\r
 382                                 sortFiles("version");\r
 383                         }\r
 384 \r
 385                 });\r
 386                 sizeLabel = new HTML("Size");\r
 387                 sizeLabel.addClickHandler(new ClickHandler() {\r
 388                         @Override\r
 389                         public void onClick(ClickEvent event) {\r
 390                                 sortFiles("size");\r
 391                         }\r
 392 \r
 393                 });\r
 394                 dateLabel = new HTML("Last modified");\r
 395                 dateLabel.addClickHandler(new ClickHandler() {\r
 396                         @Override\r
 397                         public void onClick(ClickEvent event) {\r
 398                                 sortFiles("date");\r
 399                         }\r
 400 \r
 401                 });\r
 402                 ownerLabel = new HTML("Owner");\r
 403                 ownerLabel.addClickHandler(new ClickHandler() {\r
 404                         @Override\r
 405                         public void onClick(ClickEvent event) {\r
 406                                 sortFiles("owner");\r
 407                         }\r
 408 \r
 409                 });\r
 410 \r
 411                 pathLabel = new HTML("Path");\r
 412                 pathLabel.addClickHandler(new ClickHandler() {\r
 413                         @Override\r
 414                         public void onClick(ClickEvent event) {\r
 415                                 sortFiles("path");\r
 416                         }\r
 417 \r
 418                 });\r
 419                 // Create the header row.\r
 420                 table.setText(0, 0, "");\r
 421                 // table.setText(0, 1, "Name");\r
 422                 table.setWidget(0, 1, nameLabel);\r
 423                 table.setWidget(0, 2, ownerLabel);\r
 424                 // table.setText(0, 3, "Version");\r
 425                 table.setWidget(0, 3, pathLabel);\r
 426                 table.setWidget(0, 4, versionLabel);\r
 427                 // table.setText(0, 4, "Size");\r
 428                 table.setWidget(0, 5, sizeLabel);\r
 429                 // table.setText(0, 5, "Last modified");\r
 430                 table.setWidget(0, 6, dateLabel);\r
 431                 table.setWidget(0, 7, navBar);\r
 432                 table.getRowFormatter().setStyleName(0, "gss-ListHeader");\r
 433 \r
 434                 // Initialize the rest of the rows.\r
 435                 for (int i = 1; i < GSS.VISIBLE_FILE_COUNT + 1; ++i) {\r
 436                         table.setText(i, 0, "");\r
 437                         table.setText(i, 1, "");\r
 438                         table.setText(i, 2, "");\r
 439                         table.setText(i, 3, "");\r
 440                         table.setText(i, 4, "");\r
 441                         table.setText(i, 5, "");\r
 442                         table.setText(i, 6, "");\r
 443                         table.getCellFormatter().setWordWrap(i, 0, false);\r
 444                         table.getCellFormatter().setWordWrap(i, 1, false);\r
 445                         table.getCellFormatter().setWordWrap(i, 2, false);\r
 446                         table.getCellFormatter().setWordWrap(i, 3, false);\r
 447                         table.getCellFormatter().setWordWrap(i, 4, false);\r
 448                         table.getCellFormatter().setWordWrap(i, 5, false);\r
 449                         table.getCellFormatter().setWordWrap(i, 6, false);\r
 450                         table.getCellFormatter().setHorizontalAlignment(i, 4, HasHorizontalAlignment.ALIGN_CENTER);\r
 451                 }\r
 452                 prevButton.setVisible(false);\r
 453                 nextButton.setVisible(false);\r
 454         }\r
 455 \r
 456         /**\r
 457          * Selects the given row (relative to the current page).\r
 458          *\r
 459          * @param row the row to be selected\r
 460          */\r
 461         private void selectRow(final int row, boolean toggleSelection) {\r
 462                 if (row < folderFileCount) {\r
 463                         if (clickControl)\r
 464                                 if (selectedRows.contains(row) && toggleSelection) {\r
 465                                         int i = selectedRows.indexOf(startIndex + row);\r
 466                                         selectedRows.remove(i);\r
 467                                         styleRow(row, false);\r
 468                                 } else {\r
 469                                         for (int r : selectedRows) {\r
 470                                                 int prow = r - startIndex;\r
 471                                                 table.setWidget(prow + 1, 0, AbstractImagePrototype.create(images.document()).createImage());\r
 472                                         }\r
 473                                         selectedRows.add(startIndex + row);\r
 474                                         styleRow(row, true);\r
 475                                 }\r
 476                         else {\r
 477                                 clearSelectedRows();\r
 478                                 selectedRows.add(startIndex + row);\r
 479                                 styleRow(row, true);\r
 480                         }\r
 481                         if (selectedRows.size() == 1)\r
 482                                 GSS.get().setCurrentSelection(files.get(selectedRows.get(0)));\r
 483                         else\r
 484                                 GSS.get().setCurrentSelection(getSelectedFiles());\r
 485                         //contextMenu.setFiles(getSelectedFiles());\r
 486                         table.setWidget(row + 1, 0, contextMenu);\r
 487                 }\r
 488         }\r
 489 \r
 490         public List<FileResource> getSelectedFiles() {\r
 491                 List<FileResource> result = new ArrayList();\r
 492                 for (int i : selectedRows)\r
 493                         result.add(files.get(i));\r
 494                 return result;\r
 495         }\r
 496 \r
 497         /**\r
 498          * Make the specified row look like selected or not, according to the\r
 499          * <code>selected</code> flag.\r
 500          *\r
 501          * @param row\r
 502          * @param selected\r
 503          */\r
 504         void styleRow(final int row, final boolean selected) {\r
 505                 if (row != -1 && row >= 0)\r
 506                         if (selected)\r
 507                                 table.getRowFormatter().addStyleName(row + 1, "gss-SelectedRow");\r
 508                         else\r
 509                                 table.getRowFormatter().removeStyleName(row + 1, "gss-SelectedRow");\r
 510         }\r
 511 \r
 512         /**\r
 513          * Update the display of the file list.\r
 514          */\r
 515         void update(boolean sort) {\r
 516                 int count = folderFileCount;\r
 517                 int max = startIndex + GSS.VISIBLE_FILE_COUNT;\r
 518                 if (max > count)\r
 519                         max = count;\r
 520                 folderTotalSize = 0;\r
 521 \r
 522                 if (sort && files != null && files.size() != 0) {\r
 523                         clearLabels();\r
 524                         clearSelectedRows();\r
 525 \r
 526                         Collections.sort(files, new Comparator<FileResource>() {\r
 527 \r
 528                                 public int compare(FileResource arg0, FileResource arg1) {\r
 529                                         AbstractImagePrototype descPrototype = AbstractImagePrototype.create(images.desc());\r
 530                                         AbstractImagePrototype ascPrototype = AbstractImagePrototype.create(images.asc());\r
 531                                         if (sortingType)\r
 532                                                 if (sortingProperty.equals("version")) {\r
 533                                                         versionLabel.setHTML("Version&nbsp;" + descPrototype.getHTML());\r
 534                                                         return arg0.getVersion().compareTo(arg1.getVersion());\r
 535                                                 } else if (sortingProperty.equals("owner")) {\r
 536                                                         ownerLabel.setHTML("Owner&nbsp;" + descPrototype.getHTML());\r
 537                                                         return arg0.getOwner().compareTo(arg1.getOwner());\r
 538                                                 } else if (sortingProperty.equals("date")) {\r
 539                                                         dateLabel.setHTML("Last modified&nbsp;" + descPrototype.getHTML());\r
 540                                                         return arg0.getModificationDate().compareTo(arg1.getModificationDate());\r
 541                                                 } else if (sortingProperty.equals("size")) {\r
 542                                                         sizeLabel.setHTML("Size&nbsp;" + descPrototype.getHTML());\r
 543                                                         return arg0.getContentLength().compareTo(arg1.getContentLength());\r
 544                                                 } else if (sortingProperty.equals("name")) {\r
 545                                                         nameLabel.setHTML("Name&nbsp;" + descPrototype.getHTML());\r
 546                                                         return arg0.getName().compareTo(arg1.getName());\r
 547                                                 } else if (sortingProperty.equals("path")) {\r
 548                                                         pathLabel.setHTML("Path&nbsp;" + descPrototype.getHTML());\r
 549                                                         return arg0.getUri().compareTo(arg1.getUri());\r
 550                                                 } else {\r
 551                                                         nameLabel.setHTML("Name&nbsp;" + descPrototype.getHTML());\r
 552                                                         return arg0.getName().compareTo(arg1.getName());\r
 553                                                 }\r
 554                                         else if (sortingProperty.equals("version")) {\r
 555                                                 versionLabel.setHTML("Version&nbsp;" + ascPrototype.getHTML());\r
 556                                                 return arg1.getVersion().compareTo(arg0.getVersion());\r
 557                                         } else if (sortingProperty.equals("owner")) {\r
 558                                                 ownerLabel.setHTML("Owner&nbsp;" + ascPrototype.getHTML());\r
 559                                                 return arg1.getOwner().compareTo(arg0.getOwner());\r
 560                                         } else if (sortingProperty.equals("date")) {\r
 561                                                 dateLabel.setHTML("Last modified&nbsp;" + ascPrototype.getHTML());\r
 562                                                 return arg1.getModificationDate().compareTo(arg0.getModificationDate());\r
 563                                         } else if (sortingProperty.equals("size")) {\r
 564                                                 sizeLabel.setHTML("Size&nbsp;" + ascPrototype.getHTML());\r
 565                                                 return arg1.getContentLength().compareTo(arg0.getContentLength());\r
 566                                         } else if (sortingProperty.equals("name")) {\r
 567                                                 nameLabel.setHTML("Name&nbsp;" + ascPrototype.getHTML());\r
 568                                                 return arg1.getName().compareTo(arg0.getName());\r
 569                                         } else if (sortingProperty.equals("path")) {\r
 570                                                 pathLabel.setHTML("Path&nbsp;" + ascPrototype.getHTML());\r
 571                                                 return arg1.getUri().compareTo(arg0.getUri());\r
 572                                         } else {\r
 573                                                 nameLabel.setHTML("Name&nbsp;" + ascPrototype.getHTML());\r
 574                                                 return arg1.getName().compareTo(arg0.getName());\r
 575                                         }\r
 576                                 }\r
 577 \r
 578                         });\r
 579 \r
 580                 }\r
 581                 // Show the selected files.\r
 582                 int i = 1;\r
 583                 for (; i < GSS.VISIBLE_FILE_COUNT + 1; ++i) {\r
 584                         // Don't read past the end.\r
 585                         // if (i > folderFileCount)\r
 586                         // break;\r
 587                         if (startIndex + i > folderFileCount)\r
 588                                 break;\r
 589                         // Add a new row to the table, then set each of its columns to the\r
 590                         // proper values.\r
 591                         table.setWidget(i, 0, AbstractImagePrototype.create(images.document()).createImage());\r
 592                         FileResource fileHeader = files.get(startIndex + i - 1);\r
 593                         table.getRowFormatter().addStyleName(i, "gss-fileRow");\r
 594                         table.setHTML(i, 1, fileHeader.getName());\r
 595                         table.setText(i, 2, fileHeader.getOwner());\r
 596                         table.setText(i, 3, fileHeader.getPath());\r
 597                         table.setText(i, 4, String.valueOf(fileHeader.getVersion()));\r
 598                         table.setText(i, 5, String.valueOf(fileHeader.getFileSizeAsString()));\r
 599                         final DateTimeFormat formatter = DateTimeFormat.getFormat("d/M/yyyy h:mm a");\r
 600                         table.setText(i, 6, formatter.format(fileHeader.getModificationDate()));\r
 601                         folderTotalSize += fileHeader.getContentLength();\r
 602                 }\r
 603 \r
 604                 // Clear any remaining slots.\r
 605                 for (; i < GSS.VISIBLE_FILE_COUNT + 1; ++i) {\r
 606                         table.setHTML(i, 0, "&nbsp;");\r
 607                         table.setHTML(i, 1, "&nbsp;");\r
 608                         table.setHTML(i, 2, "&nbsp;");\r
 609                         table.setHTML(i, 3, "&nbsp;");\r
 610                         table.setHTML(i, 4, "&nbsp;");\r
 611                         table.setHTML(i, 5, "&nbsp;");\r
 612                         table.setHTML(i, 6, "&nbsp;");\r
 613                         table.setHTML(i, 7, "&nbsp;");\r
 614                 }\r
 615 \r
 616                 if (folderFileCount == 0) {\r
 617                         showingStats = "no files";\r
 618                         prevButton.setVisible(false);\r
 619                         nextButton.setVisible(false);\r
 620                 } else if (folderFileCount < GSS.VISIBLE_FILE_COUNT) {\r
 621                         if (folderFileCount == 1)\r
 622                                 showingStats = "1 file";\r
 623                         else\r
 624                                 showingStats = folderFileCount + " files";\r
 625                         showingStats += " (" + FileResource.getFileSizeAsString(folderTotalSize) + ")";\r
 626                         prevButton.setVisible(false);\r
 627                         nextButton.setVisible(false);\r
 628                 } else {\r
 629                         showingStats = "" + (startIndex + 1) + " - " + max + " of " + count + " files" + " (" + FileResource.getFileSizeAsString(folderTotalSize) + ")";\r
 630                         prevButton.setVisible(startIndex != 0);\r
 631                         nextButton.setVisible(startIndex + GSS.VISIBLE_FILE_COUNT < count);\r
 632                 }\r
 633                 updateCurrentlyShowingStats();\r
 634         }\r
 635 \r
 636         /**\r
 637          *  update status panel with currently showing file stats\r
 638          */\r
 639         public void updateCurrentlyShowingStats() {\r
 640                 GSS.get().getStatusPanel().updateCurrentlyShowing(showingStats);\r
 641         }\r
 642 \r
 643         /**\r
 644          * Adjust the height of the table by adding and removing rows as necessary.\r
 645          *\r
 646          * @param newHeight the new height to reach\r
 647          */\r
 648         void resizeTableHeight(final int newHeight) {\r
 649                 GWT.log("Panel: " + newHeight + ", parent: " + table.getParent().getOffsetHeight(), null);\r
 650                 // Fill the rest with empty slots.\r
 651                 if (newHeight > table.getOffsetHeight())\r
 652                         while (newHeight > table.getOffsetHeight()) {\r
 653                                 // table.setHTML(table.getRowCount(), 5, "&nbsp;");\r
 654                                 table.resizeRows(table.getRowCount() + 1);\r
 655                                 GWT.log("Table: " + table.getOffsetHeight() + ", rows: " + table.getRowCount(), null);\r
 656                         }\r
 657                 else\r
 658                         while (newHeight < table.getOffsetHeight()) {\r
 659                                 // table.setHTML(table.getRowCount(), 5, "&nbsp;");\r
 660                                 table.resizeRows(table.getRowCount() - 1);\r
 661                                 GWT.log("Table: " + table.getOffsetHeight() + ", rows: " + table.getRowCount(), null);\r
 662                         }\r
 663         }\r
 664 \r
 665         /**\r
 666          * Update the file cache with data from the server.\r
 667          */\r
 668         public void updateFileCache(String query) {\r
 669                 final GSS app = GSS.get();\r
 670                 clearSelectedRows();\r
 671                 clearLabels();\r
 672                 startIndex = 0;\r
 673                 app.showLoadingIndicator();\r
 674                 if (query == null || query.trim().equals("")) {\r
 675                         searchResults.setHTML("You must specify a query");\r
 676                         setFiles(new ArrayList());\r
 677                         update(true);\r
 678                         app.hideLoadingIndicator();\r
 679                 } else{\r
 680                         searchResults.setHTML("Search results for " + query);\r
 681 \r
 682                         GetCommand<SearchResource> eg = new GetCommand<SearchResource>(SearchResource.class,\r
 683                                                 app.getApiPath() + "search/" + URL.encodeComponent(query), null) {\r
 684 \r
 685                                 @Override\r
 686                                 public void onComplete() {\r
 687                                         SearchResource s = getResult();\r
 688                                         setFiles(s.getFiles());\r
 689                                         update(true);\r
 690                                 }\r
 691 \r
 692                                 @Override\r
 693                                 public void onError(Throwable t) {\r
 694                                         if(t instanceof RestException)\r
 695                                                 app.displayError("Unable to perform search:"+((RestException)t).getHttpStatusText());\r
 696                                         else\r
 697                                                 app.displayError("System error performing search:"+t.getMessage());\r
 698                                         updateFileCache("");\r
 699                                 }\r
 700 \r
 701                         };\r
 702                         DeferredCommand.addCommand(eg);\r
 703                 }\r
 704         }\r
 705 \r
 706         /**\r
 707          * Fill the file cache with data.\r
 708          *\r
 709          * @param _files\r
 710          * @param filePaths the files to set\r
 711          */\r
 712         private void setFiles(List<FileResource> _files) {\r
 713                 files = _files;\r
 714                 Collections.sort(files, new Comparator<FileResource>() {\r
 715 \r
 716                         public int compare(FileResource arg0, FileResource arg1) {\r
 717                                 return arg0.getName().compareTo(arg1.getName());\r
 718                         }\r
 719 \r
 720                 });\r
 721                 folderFileCount = files.size();\r
 722                 GWT.log("File count:" + folderFileCount, null);\r
 723         }\r
 724 \r
 725         private void sortFiles(final String sortProperty) {\r
 726                 if (sortProperty.equals(sortingProperty))\r
 727                         sortingType = !sortingType;\r
 728                 else {\r
 729                         sortingProperty = sortProperty;\r
 730                         sortingType = true;\r
 731                 }\r
 732                 update(true);\r
 733         }\r
 734 \r
 735         private void clearLabels() {\r
 736                 nameLabel.setText("Name");\r
 737                 versionLabel.setText("Version");\r
 738                 sizeLabel.setText("Size");\r
 739                 dateLabel.setText("Last modified");\r
 740                 ownerLabel.setText("Owner");\r
 741                 pathLabel.setText("Path");\r
 742         }\r
 743 \r
 744         /**\r
 745          * Retrieve the table.\r
 746          *\r
 747          * @return the table\r
 748          */\r
 749         Grid getTable() {\r
 750                 return table;\r
 751         }\r
 752 \r
 753         /**\r
 754          * Does the list contains the requested filename\r
 755          *\r
 756          * @param fileName\r
 757          * @return true/false\r
 758          */\r
 759         public boolean contains(String fileName) {\r
 760                 for (int i = 0; i < files.size(); i++)\r
 761                         if (files.get(i).getName().equals(fileName))\r
 762                                 return true;\r
 763                 return false;\r
 764         }\r
 765 \r
 766         public void clearSelectedRows() {\r
 767                 for (int r : selectedRows) {\r
 768                         int row = r - startIndex;\r
 769                         styleRow(row, false);\r
 770                         table.setWidget(row + 1, 0, AbstractImagePrototype.create(images.document()).createImage());\r
 771                 }\r
 772                 selectedRows.clear();\r
 773                 Object sel = GSS.get().getCurrentSelection();\r
 774                 if (sel instanceof FileResource || sel instanceof List)\r
 775                         GSS.get().setCurrentSelection(null);\r
 776         }\r
 777 \r
 778         public static native void preventIESelection() /*-{\r
 779              $doc.body.onselectstart = function () { return false; };\r
 780          }-*/;\r
 781 \r
 782         public static native void enableIESelection() /*-{\r
 783          if ($doc.body.onselectstart != null)\r
 784              $doc.body.onselectstart = null;\r
 785          }-*/;\r
 786 \r
 787         public void selectAllRows() {\r
 788                 clearSelectedRows();\r
 789                 int count = folderFileCount;\r
 790                 if (count == 0)\r
 791                         return;\r
 792                 int max = startIndex + GSS.VISIBLE_FILE_COUNT;\r
 793                 if (max > count)\r
 794                         max = count;\r
 795                 int i = 1;\r
 796                 for (; i < GSS.VISIBLE_FILE_COUNT + 1; ++i) {\r
 797                         // Don't read past the end.\r
 798                         // if (i > folderFileCount)\r
 799                         // break;\r
 800                         if (startIndex + i > folderFileCount)\r
 801                                 break;\r
 802                         selectedRows.add(startIndex + i - 1);\r
 803                         styleRow(i - 1, true);\r
 804                 }\r
 805                 GSS.get().setCurrentSelection(getSelectedFiles());\r
 806                 //contextMenu.setFiles(getSelectedFiles());\r
 807                 table.setWidget(i - 1, 0, contextMenu);\r
 808         }\r
 809 \r
 810 }\r