code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/PermissionsList.java

   1 /*
   2  * Copyright 2011-2012 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above
  13  *      copyright notice, this list of conditions and the following
  14  *      disclaimer in the documentation and/or other materials
  15  *      provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * The views and conclusions contained in the software and
  31  * documentation are those of the authors and should not be
  32  * interpreted as representing official policies, either expressed
  33  * or implied, of GRNET S.A.
  34  */
  35 package gr.grnet.pithos.web.client;
  36
  37 import gr.grnet.pithos.web.client.FilePermissionsDialog.Images;
  38
  39 import java.util.HashMap;
  40 import java.util.Map;
  41
  42 import com.google.gwt.event.dom.client.ClickEvent;
  43 import com.google.gwt.event.dom.client.ClickHandler;
  44 import com.google.gwt.event.logical.shared.ValueChangeEvent;
  45 import com.google.gwt.event.logical.shared.ValueChangeHandler;
  46 import com.google.gwt.user.client.Command;
  47 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  48 import com.google.gwt.user.client.ui.CheckBox;
  49 import com.google.gwt.user.client.ui.Composite;
  50 import com.google.gwt.user.client.ui.FlexTable;
  51 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  52 import com.google.gwt.user.client.ui.PushButton;
  53 import com.google.gwt.user.client.ui.RadioButton;
  54 import com.google.gwt.user.client.ui.VerticalPanel;
  55
  56
  57 public class PermissionsList extends Composite {
  58
  59         Map<String, Boolean[]> permissions = null;
  60
  61         final Images images;
  62
  63         final VerticalPanel permPanel = new VerticalPanel();
  64
  65         final FlexTable permTable = new FlexTable();
  66
  67         final String owner;
  68
  69         protected boolean hasChanges = false;
  70
  71     private boolean readonly = false;
  72
  73     Command changePermissionsCallback;
  74
  75         public PermissionsList(final Images theImages, Map<String, Boolean[]> thePermissions, String theOwner, boolean inheritsPermissions, Command _changePermissionsCallback){
  76                 changePermissionsCallback = _changePermissionsCallback;
  77                 images = theImages;
  78                 owner = theOwner;
  79                 permissions =  new HashMap<String, Boolean[]>(thePermissions);
  80                 permTable.setText(0, 0, "Users/Groups");
  81                 permTable.setText(0, 1, "Read Only");
  82                 permTable.setText(0, 2, "Read/Write");
  83                 permTable.setText(0, 3, "");
  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                 permPanel.add(permTable);
  89                 permPanel.addStyleName("pithos-TabPanelBottom");
  90                 initWidget(permPanel);
  91                 updatePermissionTable();
  92         }
  93
  94         public boolean hasChanges(){
  95                 return hasChanges;
  96         }
  97
  98         /**
  99          * Retrieve the permissions.
 100          *
 101          * @return the permissions
 102          */
 103         public Map<String, Boolean[]> getPermissions() {
 104                 return permissions;
 105         }
 106
 107         public void addPermission(String user, boolean read, boolean write){
 108                 permissions.put(user, new Boolean[] {Boolean.valueOf(read), Boolean.valueOf(write)});
 109                 hasChanges = true;
 110         updatePermissionTable();
 111         if (changePermissionsCallback != null)
 112                 changePermissionsCallback.execute();
 113         }
 114
 115         /**
 116          * Shows the permission table
 117          *
 118          */
 119         void updatePermissionTable(){
 120                 int i = 1;
 121         for (int j=1; j<permTable.getRowCount(); j++)
 122             permTable.removeRow(j);
 123                 for(final String user : permissions.keySet()) {
 124             if (!user.contains(":")) //not a group
 125                 permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permUser()).getHTML() + "&nbsp;" + user + "</span>");
 126             else
 127                 permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permGroup()).getHTML() + "&nbsp;" + user.split(":")[1].trim() + "</span>");
 128             permTable.getFlexCellFormatter().setStyleName(i, 0, "props-labels");
 129
 130             Boolean[] userPerms = permissions.get(user);
 131             Boolean readP = userPerms[0];
 132             Boolean writeP = userPerms[1];
 133
 134                         RadioButton read = new RadioButton("permissions" + i);
 135                         read.setValue(readP != null ? readP : false);
 136             permTable.setWidget(i, 1, read);
 137             permTable.getFlexCellFormatter().setHorizontalAlignment(i, 1, HasHorizontalAlignment.ALIGN_CENTER);
 138
 139             RadioButton write = new RadioButton("permissions" + i);
 140             write.setValue(writeP != null ? writeP : false);
 141             permTable.setWidget(i, 2, write);
 142             permTable.getFlexCellFormatter().setHorizontalAlignment(i, 2, HasHorizontalAlignment.ALIGN_CENTER);
 143
 144             if (!readonly) {
 145                 read.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
 146                     @Override
 147                     public void onValueChange(ValueChangeEvent<Boolean> booleanValueChangeEvent) {
 148                         Boolean[] ps = permissions.get(user);
 149                         ps[0] = booleanValueChangeEvent.getValue();
 150                         ps[1] = !booleanValueChangeEvent.getValue();
 151                         hasChanges = true;
 152                         if (changePermissionsCallback != null)
 153                                 changePermissionsCallback.execute();
 154                     }
 155                 });
 156                 write.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
 157                     @Override
 158                     public void onValueChange(ValueChangeEvent<Boolean> booleanValueChangeEvent) {
 159                         Boolean[] ps = permissions.get(user);
 160                         ps[0] = !booleanValueChangeEvent.getValue();
 161                         ps[1] = booleanValueChangeEvent.getValue();
 162                         hasChanges = true;
 163                         if (changePermissionsCallback != null)
 164                                 changePermissionsCallback.execute();
 165                     }
 166                 });
 167                 PushButton removeButton = new PushButton(AbstractImagePrototype.create(images.delete()).createImage(), new ClickHandler() {
 168                     @Override
 169                     public void onClick(ClickEvent event) {
 170                         permissions.remove(user);
 171                         updatePermissionTable();
 172                         hasChanges = true;
 173                         if (changePermissionsCallback != null)
 174                                 changePermissionsCallback.execute();
 175                     }
 176                 });
 177                 removeButton.setTitle("Remove");
 178                 permTable.setWidget(i, 3, removeButton);
 179                 permTable.getFlexCellFormatter().setHorizontalAlignment(i, 3, HasHorizontalAlignment.ALIGN_CENTER);
 180             }
 181             else {
 182                 read.setEnabled(false);
 183                 write.setEnabled(false);
 184             }
 185                         i++;
 186                 }
 187         }
 188 }