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

   1 /*
   2  * Copyright 2011 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 com.google.gwt.event.logical.shared.ValueChangeEvent;
  38 import com.google.gwt.event.logical.shared.ValueChangeHandler;
  39 import gr.grnet.pithos.web.client.FilePropertiesDialog.Images;
  40
  41 import java.util.HashMap;
  42 import java.util.Map;
  43
  44 import com.google.gwt.event.dom.client.ClickEvent;
  45 import com.google.gwt.event.dom.client.ClickHandler;
  46 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  47 import com.google.gwt.user.client.ui.CheckBox;
  48 import com.google.gwt.user.client.ui.Composite;
  49 import com.google.gwt.user.client.ui.FlexTable;
  50 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  51 import com.google.gwt.user.client.ui.PushButton;
  52 import com.google.gwt.user.client.ui.VerticalPanel;
  53
  54
  55 public class PermissionsList extends Composite {
  56
  57         Map<String, Boolean[]> permissions = null;
  58
  59         final Images images;
  60
  61         final VerticalPanel permPanel = new VerticalPanel();
  62
  63         final FlexTable permTable = new FlexTable();
  64
  65         final String owner;
  66
  67         protected boolean hasChanges = false;
  68
  69     private boolean readonly = false;
  70
  71         public PermissionsList(final Images theImages, Map<String, Boolean[]> thePermissions, String theOwner, boolean inheritsPermissions){
  72                 images = theImages;
  73                 owner = theOwner;
  74                 permissions =  new HashMap<String, Boolean[]>(thePermissions);
  75         readonly = inheritsPermissions;
  76                 permTable.setText(0, 0, "Users/Groups");
  77                 permTable.setText(0, 1, "Read");
  78                 permTable.setText(0, 2, "Write");
  79                 permTable.setText(0, 3, "");
  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("pithos-TabPanelBottom");
  86                 initWidget(permPanel);
  87                 updatePermissionTable();
  88         }
  89
  90         public boolean hasChanges(){
  91                 return hasChanges;
  92         }
  93
  94         /**
  95          * Retrieve the permissions.
  96          *
  97          * @return the permissions
  98          */
  99         public Map<String, Boolean[]> getPermissions() {
 100                 return permissions;
 101         }
 102
 103         public void addPermission(String user, boolean read, boolean write){
 104                 permissions.put(user, new Boolean[] {Boolean.valueOf(read), Boolean.valueOf(write)});
 105                 hasChanges = true;
 106         updatePermissionTable();
 107         }
 108
 109         /**
 110          * Shows the permission table
 111          *
 112          */
 113         void updatePermissionTable(){
 114                 int i = 1;
 115         for (int j=1; j<permTable.getRowCount(); j++)
 116             permTable.removeRow(j);
 117                 for(final String user : permissions.keySet()) {
 118             if (!user.contains(":")) //not a group
 119                 permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permUser()).getHTML() + "&nbsp;" + user + "</span>");
 120             else
 121                 permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permGroup()).getHTML() + "&nbsp;" + user.split(":")[1].trim() + "</span>");
 122             permTable.getFlexCellFormatter().setStyleName(i, 0, "props-labels");
 123
 124             Boolean[] userPerms = permissions.get(user);
 125             Boolean readP = userPerms[0];
 126             Boolean writeP = userPerms[1];
 127
 128                         CheckBox read = new CheckBox();
 129                         read.setValue(readP != null ? readP : false);
 130             permTable.setWidget(i, 1, read);
 131             permTable.getFlexCellFormatter().setHorizontalAlignment(i, 1, HasHorizontalAlignment.ALIGN_CENTER);
 132
 133             CheckBox write = new CheckBox();
 134             write.setValue(writeP != null ? writeP : false);
 135             permTable.setWidget(i, 2, write);
 136             permTable.getFlexCellFormatter().setHorizontalAlignment(i, 2, HasHorizontalAlignment.ALIGN_CENTER);
 137
 138             if (!readonly) {
 139                 read.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
 140                     @Override
 141                     public void onValueChange(ValueChangeEvent<Boolean> booleanValueChangeEvent) {
 142                         Boolean[] ps = permissions.get(user);
 143                         ps[0] = booleanValueChangeEvent.getValue();
 144                         hasChanges = true;
 145                     }
 146                 });
 147                 write.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
 148                     @Override
 149                     public void onValueChange(ValueChangeEvent<Boolean> booleanValueChangeEvent) {
 150                         Boolean[] ps = permissions.get(user);
 151                         ps[1] = booleanValueChangeEvent.getValue();
 152                         hasChanges = true;
 153                     }
 154                 });
 155                 PushButton removeButton = new PushButton(AbstractImagePrototype.create(images.delete()).createImage(), new ClickHandler() {
 156                     @Override
 157                     public void onClick(@SuppressWarnings("unused") ClickEvent event) {
 158                         permissions.remove(user);
 159                         updatePermissionTable();
 160                         hasChanges = true;
 161                     }
 162                 });
 163                 permTable.setWidget(i, 3, removeButton);
 164                 permTable.getFlexCellFormatter().setHorizontalAlignment(i, 3, HasHorizontalAlignment.ALIGN_CENTER);
 165             }
 166             else {
 167                 read.setEnabled(false);
 168                 write.setEnabled(false);
 169             }
 170                         i++;
 171                 }
 172         }
 173 }