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