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.http.client.URL;
  35 import com.google.gwt.i18n.client.DateTimeFormat;
  36 import com.google.gwt.user.client.DeferredCommand;
  37 import com.google.gwt.user.client.Window;
  38 import com.google.gwt.user.client.ui.ClickListener;
  39 import com.google.gwt.user.client.ui.Composite;
  40 import com.google.gwt.user.client.ui.FlexTable;
  41 import com.google.gwt.user.client.ui.HTML;
  42 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  43 import com.google.gwt.user.client.ui.VerticalPanel;
  44 import com.google.gwt.user.client.ui.Widget;
  45
  46 /**
  47  * @author kman
  48  */
  49 public class VersionsList extends Composite {
  50
  51         int selectedRow = -1;
  52
  53         int permissionCount = -1;
  54
  55         List<FileResource> versions = null;
  56
  57         final Images images;
  58
  59         final VerticalPanel permPanel = new VerticalPanel();
  60
  61         final FlexTable permTable = new FlexTable();
  62
  63         FileResource toRemove = null;
  64
  65         FilePropertiesDialog container;
  66
  67         public VersionsList(FilePropertiesDialog aContainer, final Images theImages, List<FileResource> theVersions) {
  68                 images = theImages;
  69                 container = aContainer;
  70                 versions = theVersions;
  71                 Collections.sort(theVersions, new Comparator<FileResource>(){
  72
  73                         public int compare(FileResource o1, FileResource o2) {
  74                                 return o1.getVersion().compareTo(o2.getVersion());
  75                         }
  76
  77                 });
  78                 permTable.setText(0, 0, "Version");
  79                 permTable.setText(0, 1, "Created");
  80                 permTable.setText(0, 2, "Modified");
  81                 permTable.setText(0, 3, "Size");
  82                 permTable.setText(0, 4, "");
  83                 permTable.setText(0, 5, "");
  84                 permTable.getFlexCellFormatter().setStyleName(0, 0, "props-toplabels");
  85                 permTable.getFlexCellFormatter().setStyleName(0, 1, "props-toplabels");
  86                 permTable.getFlexCellFormatter().setStyleName(0, 2, "props-toplabels");
  87                 permTable.getFlexCellFormatter().setStyleName(0, 3, "props-toplabels");
  88                 permTable.getFlexCellFormatter().setColSpan(0, 1, 2);
  89                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER);
  90                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 1, HasHorizontalAlignment.ALIGN_CENTER);
  91                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 2, HasHorizontalAlignment.ALIGN_CENTER);
  92                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 3, HasHorizontalAlignment.ALIGN_CENTER);
  93                 permPanel.add(permTable);
  94                 permPanel.addStyleName("gwt-TabPanelBottom");
  95                 permTable.addStyleName("gss-permList");
  96                 initWidget(permPanel);
  97                 updateTable();
  98         }
  99
 100         public void updateTable() {
 101                 int i = 1;
 102                 if (toRemove != null) {
 103                         versions.remove(toRemove);
 104                         toRemove = null;
 105                 }
 106                 for (final FileResource dto : versions) {
 107                         HTML restoreVersion = new HTML("<a href='#' class='hidden-link info'><span>"+images.restore().getHTML()+"</span><div>Restore this Version</div></a>");
 108                         restoreVersion.addClickListener( new ClickListener() {
 109
 110                                 public void onClick(Widget sender) {
 111                                         restoreVersion(dto);
 112                                 }
 113                         });
 114
 115                         permTable.setHTML(i, 0, "<span>" + dto.getVersion() + "</span>");
 116                         permTable.setHTML(i, 1, "<span>" + formatDate(dto.getCreationDate()) + "</span>");
 117                         permTable.setHTML(i, 2, "<span>" + formatDate(dto.getModificationDate()) + "</span>");
 118                         permTable.setHTML(i, 3, "<span>" + dto.getFileSizeAsString() + "</span>");
 119                         HTML downloadHtml = new HTML("<a class='hidden-link info' href='#'><span>"+images.download().getHTML()+"</span><div>View this Version</div></a>");
 120                         downloadHtml.addClickListener(new ClickListener(){
 121
 122                                 public void onClick(Widget arg0) {
 123                                         GSS app = GSS.get();
 124                                         String dateString = RestCommand.getDate();
 125                                         String resource = dto.getUri().substring(app.getApiPath().length()-1, dto.getUri().length());
 126                                         String sig = app.getCurrentUserResource().getUsername()+" "+RestCommand.calculateSig("GET", dateString, resource, RestCommand.base64decode(app.getToken()));
 127                                         String fileUrl = dto.getUri() + "&Authorization=" + URL.encodeComponent(sig) + "&Date="+URL.encodeComponent(dateString);
 128                                         Window.open(fileUrl, "_BLANK", "");
 129
 130                                 }
 131                         });
 132                         GWT.log("images:"+images.download().getHTML(), null);
 133                         permTable.setWidget(i, 4, downloadHtml);
 134                         permTable.setWidget(i, 5, restoreVersion);
 135                         permTable.getFlexCellFormatter().setStyleName(i, 0, "props-labels");
 136                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 0, HasHorizontalAlignment.ALIGN_CENTER);
 137                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 1, HasHorizontalAlignment.ALIGN_CENTER);
 138                         permTable.getFlexCellFormatter().setColSpan(i, 1, 2);
 139                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 2, HasHorizontalAlignment.ALIGN_CENTER);
 140                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 3, HasHorizontalAlignment.ALIGN_CENTER);
 141                         i++;
 142                 }
 143                 for (; i < permTable.getRowCount(); i++)
 144                         permTable.removeRow(i);
 145         }
 146
 147
 148         void removeVersion(final FileResource version) {
 149                 DeleteCommand df = new DeleteCommand(version.getUri()){
 150
 151                         @Override
 152                         public void onComplete() {
 153                                 toRemove = version;
 154                                 updateTable();
 155                                 GSS.get().getFileList().updateFileCache(false, true /*clear selection*/);
 156                         }
 157
 158                         @Override
 159                         public void onError(Throwable t) {
 160                                 GWT.log("", t);
 161                                 if(t instanceof RestException){
 162                                         int statusCode = ((RestException)t).getHttpStatusCode();
 163                                         if(statusCode == 405)
 164                                                 GSS.get().displayError("You don't have the necessary permissions");
 165                                         else if(statusCode == 404)
 166                                                 GSS.get().displayError("Versions does not exist");
 167                                         else
 168                                                 GSS.get().displayError("Unable to remove version:"+((RestException)t).getHttpStatusText());
 169                                 }
 170                                 else
 171                                         GSS.get().displayError("System error removing version:"+t.getMessage());
 172                         }
 173                 };
 174                 DeferredCommand.addCommand(df);
 175
 176         }
 177
 178         void restoreVersion(final FileResource version) {
 179                 FileResource selectedFile = (FileResource) GSS.get().getCurrentSelection();
 180                 PostCommand ep = new PostCommand(selectedFile.getUri()+"?restoreVersion="+version.getVersion(),"",200){
 181
 182
 183                         @Override
 184                         public void onComplete() {
 185                                 container.hide();
 186                 GSS.get().getFileList().updateFileCache(true, true /*clear selection*/);
 187                         }
 188
 189                         @Override
 190                         public void onError(Throwable t) {
 191                                 GWT.log("", t);
 192                                 if(t instanceof RestException)
 193                                         GSS.get().displayError("Unable to restore version:"+((RestException)t).getHttpStatusText());
 194                                 else
 195                                         GSS.get().displayError("System error restoring version:"+t.getMessage());
 196                         }
 197
 198                 };
 199                 DeferredCommand.addCommand(ep);
 200         }
 201
 202         private String formatDate(Date date){
 203                 DateTimeFormat format = DateTimeFormat.getFormat("dd/MM/yyyy : HH:mm");
 204                 return format.format(date);
 205         }
 206
 207 }