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