code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/PermissionsList.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.GetCommand;
  23 import gr.ebs.gss.client.rest.resource.PermissionHolder;
  24 import gr.ebs.gss.client.rest.resource.UserResource;
  25 import gr.ebs.gss.client.rest.resource.UserSearchResource;
  26
  27 import java.util.HashSet;
  28 import java.util.Iterator;
  29 import java.util.Set;
  30
  31 import com.google.gwt.core.client.GWT;
  32 import com.google.gwt.event.dom.client.ClickEvent;
  33 import com.google.gwt.event.dom.client.ClickHandler;
  34 import com.google.gwt.user.client.DeferredCommand;
  35 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  36 import com.google.gwt.user.client.ui.CheckBox;
  37 import com.google.gwt.user.client.ui.Composite;
  38 import com.google.gwt.user.client.ui.FlexTable;
  39 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  40 import com.google.gwt.user.client.ui.PushButton;
  41 import com.google.gwt.user.client.ui.VerticalPanel;
  42
  43
  44 /**
  45  * @author kman
  46  *
  47  */
  48 public class PermissionsList extends Composite {
  49
  50         int selectedRow = -1;
  51
  52         int permissionCount = -1;
  53
  54         Set<PermissionHolder> permissions = null;
  55
  56         final Images images;
  57
  58         final VerticalPanel permPanel = new VerticalPanel();
  59
  60         final FlexTable permTable = new FlexTable();
  61
  62         final String owner;
  63
  64         PermissionHolder toRemove = null;
  65
  66         private boolean hasChanges = false;
  67
  68         private boolean hasAddition = false;
  69
  70         public PermissionsList(final Images theImages, Set<PermissionHolder> thePermissions, String anOwner){
  71                 images = theImages;
  72                 owner = anOwner;
  73                 permissions =  new HashSet<PermissionHolder>();
  74                 permissions.addAll(thePermissions);
  75                 permTable.setText(0, 0, "Users/Groups");
  76                 permTable.setText(0, 1, "Read");
  77                 permTable.setText(0, 2, "Write");
  78                 permTable.setText(0, 3, "Modify Access");
  79                 permTable.setText(0, 4, "");
  80                 permTable.getFlexCellFormatter().setStyleName(0, 0, "props-toplabels");
  81                 permTable.getFlexCellFormatter().setStyleName(0, 1, "props-toplabels");
  82                 permTable.getFlexCellFormatter().setStyleName(0, 2, "props-toplabels");
  83                 permTable.getFlexCellFormatter().setStyleName(0, 3, "props-toplabels");
  84                 permPanel.add(permTable);
  85                 permPanel.addStyleName("gss-TabPanelBottom");
  86                 initWidget(permPanel);
  87                 updateTable();
  88         }
  89
  90         public boolean hasChanges(){
  91                 return hasChanges || hasAddition;
  92         }
  93
  94
  95         public void updateTable(){
  96                 copySetAndContinue(permissions);
  97         }
  98
  99         public void updatePermissionsAccordingToInput(){
 100                 int i=1;
 101                 for(PermissionHolder dto : permissions){
 102                         /*if(dto.getId() == null)
 103                                 hasChanges =true;*/
 104                         CheckBox r = (CheckBox) permTable.getWidget(i, 1);
 105                         CheckBox w = (CheckBox) permTable.getWidget(i, 2);
 106                         CheckBox m = (CheckBox) permTable.getWidget(i, 3);
 107                         if(dto.isRead() != r.getValue() || dto.isWrite() != w.getValue() || dto.isModifyACL() != m.getValue())
 108                                 hasChanges = true;
 109                         dto.setRead(r.getValue());
 110                         dto.setWrite(w.getValue());
 111                         dto.setModifyACL(m.getValue());
 112                         i++;
 113                 }
 114         }
 115
 116         /**
 117          * Retrieve the permissions.
 118          *
 119          * @return the permissions
 120          */
 121         public Set<PermissionHolder> getPermissions() {
 122                 return permissions;
 123         }
 124
 125         public void addPermission(PermissionHolder permission){
 126                 permissions.add(permission);
 127                 hasAddition = true;
 128         }
 129         /**
 130          * Copies the input Set to a new Set
 131          * @param input
 132          */
 133         private void copySetAndContinue(Set<PermissionHolder> input){
 134                 Set<PermissionHolder> copiedInput = new HashSet<PermissionHolder>();
 135                 for(PermissionHolder dto : input) {
 136                         copiedInput.add(dto);
 137                 }
 138                 handleFullNames(copiedInput);
 139         }
 140
 141         /**
 142          * Examines whether or not the user's full name exists in the
 143          * userFullNameMap in the GSS.java for every element of the input list.
 144          * If the user's full name does not exist in the map then a request is being made
 145          * for the specific username.
 146          *
 147          * @param filesInput
 148          */
 149         private void handleFullNames(Set<PermissionHolder> aPermissions){
 150                 if(aPermissions.isEmpty()){
 151                         showPermissionTable();
 152                         return;
 153                 }
 154
 155                 final PermissionHolder dto = aPermissions.iterator().next();
 156
 157                 if(GSS.get().findUserFullName(dto.getUser()) != null){
 158                         if(aPermissions.size() >= 1){
 159                                 aPermissions.remove(dto);
 160                                 handleFullNames(aPermissions);
 161                         }else{
 162                                 showPermissionTable();
 163                         }
 164                 }else{
 165                         findFullNameAndUpdate(aPermissions);
 166                 }
 167         }
 168
 169         /**
 170          * Shows the table
 171          *
 172          * @param aPermissions
 173          */
 174         private void showPermissionTable(){
 175                 int i = 1;
 176                 if(toRemove != null){
 177                         permissions.remove(toRemove);
 178                         toRemove = null;
 179                 }
 180                 for(final PermissionHolder dto : permissions){
 181                         PushButton removeButton = new PushButton(AbstractImagePrototype.create(images.delete()).createImage(), new ClickHandler() {
 182                                 @Override
 183                                 public void onClick(ClickEvent event) {
 184                                         toRemove = dto;
 185                                         updateTable();
 186                                         hasChanges = true;
 187                                 }
 188                         });
 189
 190                         if(dto.getUser() != null){
 191                                 if(dto.getUser() != null && dto.getUser().equals(owner)){
 192                                         permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permUser()).getHTML() + "&nbsp;Owner</span>");
 193                                         removeButton.setVisible(false);
 194                                 }else{
 195                                         permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permUser()).getHTML() + "&nbsp;"+ GSS.get().findUserFullName(dto.getUser()) + "</span>");
 196                                 }
 197                         }else if(dto.getGroup() != null){
 198                                 permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permGroup()).getHTML() + "&nbsp;"+ dto.getGroup() + "</span>");
 199                         }
 200
 201                         CheckBox read = new CheckBox();
 202                         read.setValue(dto.isRead());
 203                         CheckBox write = new CheckBox();
 204                         write.setValue(dto.isWrite());
 205                         CheckBox modify = new CheckBox();
 206                         modify.setValue(dto.isModifyACL());
 207                         if (dto.getUser()!=null && dto.getUser().equals(owner)) {
 208                                 read.setEnabled(false);
 209                                 write.setEnabled(false);
 210                                 modify.setEnabled(false);
 211                         }
 212
 213                         permTable.setWidget(i, 1, read);
 214                         permTable.setWidget(i, 2, write);
 215                         permTable.setWidget(i, 3, modify);
 216                         permTable.setWidget(i, 4, removeButton);
 217                         permTable.getFlexCellFormatter().setStyleName(i, 0, "props-labels");
 218                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 1, HasHorizontalAlignment.ALIGN_CENTER);
 219                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 2, HasHorizontalAlignment.ALIGN_CENTER);
 220                         permTable.getFlexCellFormatter().setHorizontalAlignment(i, 3, HasHorizontalAlignment.ALIGN_CENTER);
 221                         i++;
 222                 }
 223 //              for(; i<permTable.getRowCount(); i++)
 224 //                      permTable.removeRow(i);
 225 //              hasChanges = false;
 226         }
 227
 228         /**
 229          * Makes a request to search for full name from a given username
 230          * and continues checking the next element of the Set.
 231          *
 232          * @param filesInput
 233          */
 234
 235         private void findFullNameAndUpdate(final Set<PermissionHolder> aPermissions){
 236                 final PermissionHolder dto = aPermissions.iterator().next();
 237                 String path = GSS.get().getApiPath() + "users/" + dto.getUser();
 238
 239                 GetCommand<UserSearchResource> gg = new GetCommand<UserSearchResource>(UserSearchResource.class, path, false,null) {
 240                         @Override
 241                         public void onComplete() {
 242                                 final UserSearchResource result = getResult();
 243                                 for (UserResource user : result.getUsers()){
 244                                         String username = user.getUsername();
 245                                         String userFullName = user.getName();
 246                                         GSS.get().putUserToMap(username, userFullName);
 247                                         if(aPermissions.size() >= 1){
 248                                                 aPermissions.remove(dto);
 249                                                 if(aPermissions.isEmpty()){
 250                                                         showPermissionTable();
 251                                                         return;
 252                                                 }
 253                                                 handleFullNames(aPermissions);
 254                                         }
 255                                 }
 256                         }
 257                         @Override
 258                         public void onError(Throwable t) {
 259                                 GSS.get().displayError("Unable to fetch user's full name from the given username " + dto.getUser());
 260                                 if(aPermissions.size() >= 1){
 261                                         aPermissions.remove(dto);
 262                                         if(aPermissions.isEmpty()){
 263                                                 showPermissionTable();
 264                                                 return;
 265                                         }
 266                                         handleFullNames(aPermissions);
 267                                 }
 268                         }
 269                 };
 270                 DeferredCommand.addCommand(gg);
 271
 272         }
 273
 274 }