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

   1 /*
   2  * Copyright 2008, 2009 Electronic Business Systems Ltd.
   3  *
   4  * This file is part of GSS.
   5  *
   6  * GSS is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GSS is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GSS.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 package gr.ebs.gss.client;
  20
  21 import gr.ebs.gss.client.FilePropertiesDialog.Images;
  22 import gr.ebs.gss.client.rest.DeleteCommand;
  23 import gr.ebs.gss.client.rest.PostCommand;
  24 import gr.ebs.gss.client.rest.RestCommand;
  25 import gr.ebs.gss.client.rest.RestException;
  26 import gr.ebs.gss.client.rest.resource.FileResource;
  27
  28 import java.util.Collections;
  29 import java.util.Comparator;
  30 import java.util.Date;
  31 import java.util.List;
  32
  33 import com.google.gwt.core.client.GWT;
  34 import com.google.gwt.event.dom.client.ClickEvent;
  35 import com.google.gwt.event.dom.client.ClickHandler;
  36 import com.google.gwt.http.client.URL;
  37 import com.google.gwt.i18n.client.DateTimeFormat;
  38 import com.google.gwt.user.client.DeferredCommand;
  39 import com.google.gwt.user.client.Window;
  40 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  41 import com.google.gwt.user.client.ui.Composite;
  42 import com.google.gwt.user.client.ui.FlexTable;
  43 import com.google.gwt.user.client.ui.HTML;
  44 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  45 import com.google.gwt.user.client.ui.VerticalPanel;
  46
  47 /**
  48  * @author kman
  49  */
  50 public class VersionsList extends Composite {
  51
  52         int selectedRow = -1;
  53
  54         int permissionCount = -1;
  55
  56         List<FileResource> versions = null;
  57
  58         final Images images;
  59
  60         final VerticalPanel permPanel = new VerticalPanel();
  61
  62         final FlexTable permTable = new FlexTable();
  63
  64         FileResource toRemove = null;
  65
  66         FilePropertiesDialog container;
  67
  68         public VersionsList(FilePropertiesDialog aContainer, final Images theImages, List<FileResource> theVersions) {
  69                 images = theImages;
  70                 container = aContainer;
  71                 versions = theVersions;
  72                 Collections.sort(theVersions, new Comparator<FileResource>(){
  73
  74                         public int compare(FileResource o1, FileResource o2) {
  75                                 return o1.getVersion().compareTo(o2.getVersion());
  76                         }
  77
  78                 });
  79                 permTable.setText(0, 0, "Version");
  80                 permTable.setText(0, 1, "Created");
  81                 permTable.setText(0, 2, "Modified");
  82                 permTable.setText(0, 3, "Size");
  83                 permTable.setText(0, 4, "");
  84                 permTable.setText(0, 5, "");
  85                 permTable.getFlexCellFormatter().setStyleName(0, 0, "props-toplabels");
  86                 permTable.getFlexCellFormatter().setStyleName(0, 1, "props-toplabels");
  87                 permTable.getFlexCellFormatter().setStyleName(0, 2, "props-toplabels");
  88                 permTable.getFlexCellFormatter().setStyleName(0, 3, "props-toplabels");
  89                 permTable.getFlexCellFormatter().setColSpan(0, 1, 2);
  90                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER);
  91                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 1, HasHorizontalAlignment.ALIGN_CENTER);
  92                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 2, HasHorizontalAlignment.ALIGN_CENTER);
  93                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 3, HasHorizontalAlignment.ALIGN_CENTER);
  94                 permPanel.add(permTable);
  95                 permPanel.addStyleName("gss-TabPanelBottom");
  96                 permTable.addStyleName("gss-permList");
  97                 initWidget(permPanel);
  98                 updateTable();
  99         }
 100
 101         public void updateTable() {
 102                 int i = 1;
 103                 if (toRemove != null) {
 104                         versions.remove(toRemove);
 105                         toRemove = null;
 106                 }
 107                 for (final FileResource dto : versions) {
 108                         HTML restoreVersion = new HTML("<a href='#' class='hidden-link info'><span>"+AbstractImagePrototype.create(images.restore()).getHTML()+"</span><div>Restore this Version</div></a>");
 109                         restoreVersion.addClickHandler( new ClickHandler() {
 110                                 @Override
 111                                 public void onClick(ClickEvent event) {
 112                                         restoreVersion(dto);
 113                                 }
 114                         });
 115
 116                         permTable.setHTML(i, 0, "<span>" + dto.getVersion() + "</span>");
 117                         permTable.setHTML(i, 1, "<span>" + formatDate(dto.getCreationDate()) + "</span>");
 118                         permTable.setHTML(i, 2, "<span>" + formatDate(dto.getModificationDate()) + "</span>");
 119                         permTable.setHTML(i, 3, "<span>" + dto.getFileSizeAsString() + "</span>");
 120                         HTML downloadHtml = new HTML("<a class='hidden-link info' href='#'><span>"+AbstractImagePrototype.create(images.download()).getHTML()+"</span><div>View this Version</div></a>");
 121                         downloadHtml.addClickHandler(new ClickHandler() {
 122                                 @Override
 123                                 public void onClick(ClickEvent event) {
 124                                         GSS app = GSS.get();
 125                                         String dateString = RestCommand.getDate();
 126                                         String resource = dto.getUri().substring(app.getApiPath().length()-1, dto.getUri().length());
 127                                         String sig = app.getCurrentUserResource().getUsername()+" "+RestCommand.calculateSig("GET", dateString, resource, RestCommand.base64decode(app.getToken()));
 128                                         String fileUrl = dto.getUri() + "&Authorization=" + URL.encodeComponent(sig) + "&Date="+URL.encodeComponent(dateString);
 129                                         Window.open(fileUrl, "_BLANK", "");
 130                                 }
 131                         });
 132                         permTable.setWidget(i, 4, downloadHtml);
 133                         permTable.setWidget(i, 5, restoreVersion);
 134                         permTable.getFlexCellFormatter().setStyleName(i, 0, "props-labels");
 135                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 0, HasHorizontalAlignment.ALIGN_CENTER);
 136                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 1, HasHorizontalAlignment.ALIGN_CENTER);
 137                         permTable.getFlexCellFormatter().setColSpan(i, 1, 2);
 138                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 2, HasHorizontalAlignment.ALIGN_CENTER);
 139                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 3, HasHorizontalAlignment.ALIGN_CENTER);
 140                         i++;
 141                 }
 142                 for (; i < permTable.getRowCount(); i++)
 143                         permTable.removeRow(i);
 144         }
 145
 146
 147         void removeVersion(final FileResource version) {
 148                 DeleteCommand df = new DeleteCommand(version.getUri()){
 149
 150                         @Override
 151                         public void onComplete() {
 152                                 toRemove = version;
 153                                 updateTable();
 154                                 GSS.get().getFileList().updateFileCache(false, true /*clear selection*/);
 155                         }
 156
 157                         @Override
 158                         public void onError(Throwable t) {
 159                                 GWT.log("", t);
 160                                 if(t instanceof RestException){
 161                                         int statusCode = ((RestException)t).getHttpStatusCode();
 162                                         if(statusCode == 405)
 163                                                 GSS.get().displayError("You don't have the necessary permissions");
 164                                         else if(statusCode == 404)
 165                                                 GSS.get().displayError("Versions does not exist");
 166                                         else
 167                                                 GSS.get().displayError("Unable to remove version:"+((RestException)t).getHttpStatusText());
 168                                 }
 169                                 else
 170                                         GSS.get().displayError("System error removing version:"+t.getMessage());
 171                         }
 172                 };
 173                 DeferredCommand.addCommand(df);
 174
 175         }
 176
 177         void restoreVersion(final FileResource version) {
 178                 FileResource selectedFile = (FileResource) GSS.get().getCurrentSelection();
 179                 PostCommand ep = new PostCommand(selectedFile.getUri()+"?restoreVersion="+version.getVersion(),"",200){
 180
 181
 182                         @Override
 183                         public void onComplete() {
 184                                 container.hide();
 185                 GSS.get().getFileList().updateFileCache(true, true /*clear selection*/);
 186                         }
 187
 188                         @Override
 189                         public void onError(Throwable t) {
 190                                 GWT.log("", t);
 191                                 if(t instanceof RestException)
 192                                         GSS.get().displayError("Unable to restore version:"+((RestException)t).getHttpStatusText());
 193                                 else
 194                                         GSS.get().displayError("System error restoring version:"+t.getMessage());
 195                         }
 196
 197                 };
 198                 DeferredCommand.addCommand(ep);
 199         }
 200
 201         private String formatDate(Date date){
 202                 DateTimeFormat format = DateTimeFormat.getFormat("dd/MM/yyyy : HH:mm");
 203                 return format.format(date);
 204         }
 205
 206 }