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.commands.GetUserCommand;
  23 import gr.ebs.gss.client.rest.DeleteCommand;
  24 import gr.ebs.gss.client.rest.PostCommand;
  25 import gr.ebs.gss.client.rest.RestCommand;
  26 import gr.ebs.gss.client.rest.RestException;
  27 import gr.ebs.gss.client.rest.resource.FileResource;
  28
  29 import java.util.Collections;
  30 import java.util.Comparator;
  31 import java.util.Date;
  32 import java.util.List;
  33
  34 import com.google.gwt.core.client.GWT;
  35 import com.google.gwt.event.dom.client.ClickEvent;
  36 import com.google.gwt.event.dom.client.ClickHandler;
  37 import com.google.gwt.http.client.URL;
  38 import com.google.gwt.i18n.client.DateTimeFormat;
  39 import com.google.gwt.user.client.DeferredCommand;
  40 import com.google.gwt.user.client.Window;
  41 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  42 import com.google.gwt.user.client.ui.Composite;
  43 import com.google.gwt.user.client.ui.FlexTable;
  44 import com.google.gwt.user.client.ui.HTML;
  45 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  46 import com.google.gwt.user.client.ui.VerticalPanel;
  47
  48 /**
  49  * @author kman
  50  */
  51 public class VersionsList extends Composite {
  52
  53         int selectedRow = -1;
  54
  55         int permissionCount = -1;
  56
  57         List<FileResource> versions = null;
  58
  59         final Images images;
  60
  61         final VerticalPanel permPanel = new VerticalPanel();
  62
  63         final FlexTable permTable = new FlexTable();
  64
  65         FileResource toRemove = null;
  66
  67         FilePropertiesDialog container;
  68
  69         public VersionsList(FilePropertiesDialog aContainer, final Images theImages, List<FileResource> theVersions) {
  70                 images = theImages;
  71                 container = aContainer;
  72                 versions = theVersions;
  73                 Collections.sort(theVersions, new Comparator<FileResource>(){
  74
  75                         @Override
  76                         public int compare(FileResource o1, FileResource o2) {
  77                                 return o1.getVersion().compareTo(o2.getVersion());
  78                         }
  79
  80                 });
  81                 permTable.setText(0, 0, "Version");
  82                 permTable.setText(0, 1, "Created");
  83                 permTable.setText(0, 2, "Modified");
  84                 permTable.setText(0, 3, "Size");
  85                 permTable.setText(0, 4, "");
  86                 permTable.setText(0, 5, "");
  87                 permTable.getFlexCellFormatter().setStyleName(0, 0, "props-toplabels");
  88                 permTable.getFlexCellFormatter().setStyleName(0, 1, "props-toplabels");
  89                 permTable.getFlexCellFormatter().setStyleName(0, 2, "props-toplabels");
  90                 permTable.getFlexCellFormatter().setStyleName(0, 3, "props-toplabels");
  91                 permTable.getFlexCellFormatter().setColSpan(0, 1, 2);
  92                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 0, HasHorizontalAlignment.ALIGN_CENTER);
  93                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 1, HasHorizontalAlignment.ALIGN_CENTER);
  94                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 2, HasHorizontalAlignment.ALIGN_CENTER);
  95                 permTable.getFlexCellFormatter().setHorizontalAlignment(0, 3, HasHorizontalAlignment.ALIGN_CENTER);
  96                 permPanel.add(permTable);
  97                 permPanel.addStyleName("gss-TabPanelBottom");
  98                 permTable.addStyleName("gss-permList");
  99                 initWidget(permPanel);
 100                 updateTable();
 101         }
 102
 103         public void updateTable() {
 104                 int i = 1;
 105                 if (toRemove != null) {
 106                         versions.remove(toRemove);
 107                         toRemove = null;
 108                 }
 109                 for (final FileResource dto : versions) {
 110                         HTML restoreVersion = new HTML("<a href='#' class='hidden-link info'><span>"+AbstractImagePrototype.create(images.restore()).getHTML()+"</span><div>Restore this Version</div></a>");
 111                         restoreVersion.addClickHandler(new ClickHandler() {
 112                                 @Override
 113                                 public void onClick(ClickEvent event) {
 114                                         restoreVersion(dto);
 115                                 }
 116                         });
 117
 118                         permTable.setHTML(i, 0, "<span>" + dto.getVersion() + "</span>");
 119
 120                         if(GSS.get().findUserFullName(dto.getCreatedBy()) == null){
 121                                 GetUserCommand guc = new GetUserCommand(dto.getCreatedBy());
 122                                 guc.execute();
 123                                 GSS.get().putUserToMap(dto.getCreatedBy(), dto.getCreatedBy());
 124                         }
 125
 126                         if(GSS.get().findUserFullName(dto.getModifiedBy()) == null){
 127                                 GetUserCommand guc = new GetUserCommand(dto.getModifiedBy());
 128                                 guc.execute();
 129                                 GSS.get().putUserToMap(dto.getModifiedBy(), dto.getModifiedBy());
 130                         }
 131                         permTable.setHTML(i, 1, "<span>" + formatDate(dto.getCreationDate()) + " by " + GSS.get().findUserFullName(dto.getCreatedBy()) + "</span>");
 132                         permTable.setHTML(i, 2, "<span>" + formatDate(dto.getModificationDate()) + " by " + GSS.get().findUserFullName(dto.getModifiedBy()) + "</span>");
 133                         permTable.setHTML(i, 3, "<span>" + dto.getFileSizeAsString() + "</span>");
 134                         HTML downloadHtml = new HTML("<a class='hidden-link info' href='#'><span>"+AbstractImagePrototype.create(images.download()).getHTML()+"</span><div>View this Version</div></a>");
 135                         downloadHtml.addClickHandler(new ClickHandler() {
 136                                 @Override
 137                                 public void onClick(ClickEvent event) {
 138                                         GSS app = GSS.get();
 139                                         String dateString = RestCommand.getDate();
 140                                         String resource = dto.getUri().substring(app.getApiPath().length()-1, dto.getUri().length());
 141                                         String sig = app.getCurrentUserResource().getUsername()+" "+RestCommand.calculateSig("GET", dateString, resource, RestCommand.base64decode(app.getToken()));
 142                                         String fileUrl = dto.getUri() + "?version=" + dto.getVersion() + "&Authorization=" + URL.encodeComponent(sig) + "&Date="+URL.encodeComponent(dateString);
 143                                         Window.open(fileUrl, "_BLANK", "");
 144                                 }
 145                         });
 146                         permTable.setWidget(i, 4, downloadHtml);
 147                         permTable.setWidget(i, 5, restoreVersion);
 148                         permTable.getFlexCellFormatter().setStyleName(i, 0, "props-labels");
 149                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 0, HasHorizontalAlignment.ALIGN_CENTER);
 150                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 1, HasHorizontalAlignment.ALIGN_CENTER);
 151                         permTable.getFlexCellFormatter().setColSpan(i, 1, 2);
 152                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 2, HasHorizontalAlignment.ALIGN_CENTER);
 153                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 3, HasHorizontalAlignment.ALIGN_CENTER);
 154                         i++;
 155                 }
 156                 for (; i < permTable.getRowCount(); i++)
 157                         permTable.removeRow(i);
 158         }
 159
 160
 161         void removeVersion(final FileResource version) {
 162                 DeleteCommand df = new DeleteCommand(version.getUri()){
 163
 164                         @Override
 165                         public void onComplete() {
 166                                 toRemove = version;
 167                                 updateTable();
 168                                 GSS.get().getFileList().updateFileCache(false, true /*clear selection*/);
 169                         }
 170
 171                         @Override
 172                         public void onError(Throwable t) {
 173                                 GWT.log("", t);
 174                                 if(t instanceof RestException){
 175                                         int statusCode = ((RestException)t).getHttpStatusCode();
 176                                         if(statusCode == 405)
 177                                                 GSS.get().displayError("You don't have the necessary permissions");
 178                                         else if(statusCode == 404)
 179                                                 GSS.get().displayError("Versions does not exist");
 180                                         else
 181                                                 GSS.get().displayError("Unable to remove version:"+((RestException)t).getHttpStatusText());
 182                                 }
 183                                 else
 184                                         GSS.get().displayError("System error removing version:"+t.getMessage());
 185                         }
 186                 };
 187                 DeferredCommand.addCommand(df);
 188
 189         }
 190
 191         void restoreVersion(final FileResource version) {
 192                 FileResource selectedFile = (FileResource) GSS.get().getCurrentSelection();
 193                 PostCommand ep = new PostCommand(selectedFile.getUri()+"?restoreVersion="+version.getVersion(),"",200){
 194
 195
 196                         @Override
 197                         public void onComplete() {
 198                                 container.hide();
 199                 GSS.get().getFileList().updateFileCache(true, true /*clear selection*/);
 200                         }
 201
 202                         @Override
 203                         public void onError(Throwable t) {
 204                                 GWT.log("", t);
 205                                 if(t instanceof RestException)
 206                                         GSS.get().displayError("Unable to restore version:"+((RestException)t).getHttpStatusText());
 207                                 else
 208                                         GSS.get().displayError("System error restoring version:"+t.getMessage());
 209                         }
 210
 211                 };
 212                 DeferredCommand.addCommand(ep);
 213         }
 214
 215         private String formatDate(Date date){
 216                 DateTimeFormat format = DateTimeFormat.getFormat("dd/MM/yyyy : HH:mm");
 217                 return format.format(date);
 218         }
 219
 220 }