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.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                 permTable.setText(0, 0, "Users/Groups");
  76                 permTable.setText(0, 1, "Read");
  77                 permTable.setText(0, 2, "Write");
  78                 permTable.setText(0, 3, "");
  79                 permTable.getFlexCellFormatter().setStyleName(0, 0, "props-toplabels");
  80                 permTable.getFlexCellFormatter().setStyleName(0, 1, "props-toplabels");
  81                 permTable.getFlexCellFormatter().setStyleName(0, 2, "props-toplabels");
  82                 permTable.getFlexCellFormatter().setStyleName(0, 3, "props-toplabels");
  83                 permPanel.add(permTable);
  84                 permPanel.addStyleName("pithos-TabPanelBottom");
  85                 initWidget(permPanel);
  86                 updatePermissionTable();
  87         }
  88
  89         public boolean hasChanges(){
  90                 return hasChanges;
  91         }
  92
  93         /**
  94          * Retrieve the permissions.
  95          *
  96          * @return the permissions
  97          */
  98         public Map<String, Boolean[]> getPermissions() {
  99                 return permissions;
 100         }
 101
 102         public void addPermission(String user, boolean read, boolean write){
 103                 permissions.put(user, new Boolean[] {Boolean.valueOf(read), Boolean.valueOf(write)});
 104                 hasChanges = true;
 105         updatePermissionTable();
 106         }
 107
 108         /**
 109          * Shows the permission table
 110          *
 111          */
 112         void updatePermissionTable(){
 113                 int i = 1;
 114         for (int j=1; j<permTable.getRowCount(); j++)
 115             permTable.removeRow(j);
 116                 for(final String user : permissions.keySet()) {
 117             if (!user.contains(":")) //not a group
 118                 permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permUser()).getHTML() + "&nbsp;" + user + "</span>");
 119             else
 120                 permTable.setHTML(i, 0, "<span>" + AbstractImagePrototype.create(images.permGroup()).getHTML() + "&nbsp;" + user.split(":")[1].trim() + "</span>");
 121             permTable.getFlexCellFormatter().setStyleName(i, 0, "props-labels");
 122
 123             Boolean[] userPerms = permissions.get(user);
 124             Boolean readP = userPerms[0];
 125             Boolean writeP = userPerms[1];
 126
 127                         CheckBox read = new CheckBox();
 128                         read.setValue(readP != null ? readP : false);
 129             permTable.setWidget(i, 1, read);
 130             permTable.getFlexCellFormatter().setHorizontalAlignment(i, 1, HasHorizontalAlignment.ALIGN_CENTER);
 131
 132             CheckBox write = new CheckBox();
 133             write.setValue(writeP != null ? writeP : false);
 134             permTable.setWidget(i, 2, write);
 135             permTable.getFlexCellFormatter().setHorizontalAlignment(i, 2, HasHorizontalAlignment.ALIGN_CENTER);
 136
 137             if (!readonly) {
 138                 read.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
 139                     @Override
 140                     public void onValueChange(ValueChangeEvent<Boolean> booleanValueChangeEvent) {
 141                         Boolean[] ps = permissions.get(user);
 142                         ps[0] = booleanValueChangeEvent.getValue();
 143                         hasChanges = true;
 144                     }
 145                 });
 146                 write.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
 147                     @Override
 148                     public void onValueChange(ValueChangeEvent<Boolean> booleanValueChangeEvent) {
 149                         Boolean[] ps = permissions.get(user);
 150                         ps[1] = booleanValueChangeEvent.getValue();
 151                         hasChanges = true;
 152                     }
 153                 });
 154                 PushButton removeButton = new PushButton(AbstractImagePrototype.create(images.delete()).createImage(), new ClickHandler() {
 155                     @Override
 156                     public void onClick(ClickEvent event) {
 157                         permissions.remove(user);
 158                         updatePermissionTable();
 159                         hasChanges = true;
 160                     }
 161                 });
 162                 permTable.setWidget(i, 3, removeButton);
 163                 permTable.getFlexCellFormatter().setHorizontalAlignment(i, 3, HasHorizontalAlignment.ALIGN_CENTER);
 164             }
 165             else {
 166                 read.setEnabled(false);
 167                 write.setEnabled(false);
 168             }
 169                         i++;
 170                 }
 171         }
 172 }