code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/DeleteUserDialog.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.MessagePanel.Images;
  22 import gr.ebs.gss.client.rest.DeleteCommand;
  23 import gr.ebs.gss.client.rest.RestException;
  24 import gr.ebs.gss.client.rest.resource.GroupUserResource;
  25
  26 import com.google.gwt.core.client.GWT;
  27 import com.google.gwt.user.client.DeferredCommand;
  28 import com.google.gwt.user.client.ui.Button;
  29 import com.google.gwt.user.client.ui.ClickListener;
  30 import com.google.gwt.user.client.ui.DialogBox;
  31 import com.google.gwt.user.client.ui.HTML;
  32 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  33 import com.google.gwt.user.client.ui.HorizontalPanel;
  34 import com.google.gwt.user.client.ui.KeyboardListener;
  35 import com.google.gwt.user.client.ui.TreeItem;
  36 import com.google.gwt.user.client.ui.VerticalPanel;
  37 import com.google.gwt.user.client.ui.Widget;
  38
  39
  40 /**
  41  * @author kman
  42  *
  43  */
  44 public class DeleteUserDialog extends DialogBox {
  45
  46         /**
  47          * The widget's constructor.
  48          * @param images the supplied images
  49          */
  50         public DeleteUserDialog(final Images images) {
  51                 // Use this opportunity to set the dialog's caption.
  52                 setText("Delete user");
  53                 setAnimationEnabled(true);
  54                 final GroupUserResource group = (GroupUserResource) GSS.get().getCurrentSelection();
  55                 // Create a VerticalPanel to contain the 'about' label and the 'OK'
  56                 // button.
  57                 final VerticalPanel outer = new VerticalPanel();
  58                 final HorizontalPanel buttons = new HorizontalPanel();
  59
  60                 // Create the 'about' text and set a style name so we can style it with
  61                 // CSS.
  62                 final HTML text = new HTML("<table><tr><td>" + images.warn().getHTML() + "</td><td>" + "Are you sure you want to remove user '" + group.getName() + "'?</td></tr></table>");
  63                 text.setStyleName("gss-warnMessage");
  64                 outer.add(text);
  65
  66                 // Create the 'Quit' button, along with a listener that hides the dialog
  67                 // when the button is clicked and quits the application.
  68                 final Button ok = new Button("OK", new ClickListener() {
  69
  70                         public void onClick(Widget sender) {
  71                                 deleteUser();
  72                                 hide();
  73                         }
  74                 });
  75                 buttons.add(ok);
  76                 buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);
  77                 // Create the 'Cancel' button, along with a listener that hides the
  78                 // dialog
  79                 // when the button is clicked.
  80                 final Button cancel = new Button("Cancel", new ClickListener() {
  81
  82                         public void onClick(Widget sender) {
  83                                 hide();
  84                         }
  85                 });
  86                 buttons.add(cancel);
  87                 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);
  88                 buttons.setSpacing(8);
  89                 buttons.setStyleName("gss-warnMessage");
  90                 outer.setStyleName("gss-warnMessage");
  91                 outer.add(buttons);
  92                 outer.setCellHorizontalAlignment(text, HasHorizontalAlignment.ALIGN_CENTER);
  93                 outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);
  94                 setWidget(outer);
  95         }
  96
  97         /**
  98          * Generate an RPC request to delete a group.
  99          *
 100          * @param userId the ID of the current user
 101          */
 102         private void deleteUser() {
 103                 final TreeItem user = GSS.get().getGroups().getCurrent();
 104                 final TreeItem group = user.getParentItem();
 105                 if (group == null) {
 106                         GSS.get().displayError("No user was selected!");
 107                         return;
 108                 }
 109                 final GroupUserResource memberR = (GroupUserResource) user.getUserObject();
 110                 DeleteCommand du = new DeleteCommand(memberR.getUri()){
 111
 112                         @Override
 113                         public void onComplete() {
 114                                 GSS.get().getGroups().updateGroups();
 115                         }
 116
 117                         @Override
 118                         public void onError(Throwable t) {
 119                                 GWT.log("", t);
 120                                 if(t instanceof RestException){
 121                                         int statusCode = ((RestException)t).getHttpStatusCode();
 122                                         if(statusCode == 405)
 123                                                 GSS.get().displayError("You don't have the necessary permissions");
 124                                         else if(statusCode == 404)
 125                                                 GSS.get().displayError("User not found");
 126                                         else
 127                                                 GSS.get().displayError("Unable to delete user:"+((RestException)t).getHttpStatusText());
 128                                 }
 129                                 else
 130                                         GSS.get().displayError("System error unable to delete user:"+t.getMessage());
 131                         }
 132                 };
 133                 DeferredCommand.addCommand(du);
 134
 135         }
 136
 137         @Override
 138         public boolean onKeyDownPreview(final char key, final int modifiers) {
 139                 // Use the popup's key preview hooks to close the dialog when either
 140                 // enter or escape is pressed.
 141                 switch (key) {
 142                         case KeyboardListener.KEY_ENTER:
 143                                 hide();
 144                                 deleteUser();
 145                                 break;
 146                         case KeyboardListener.KEY_ESCAPE:
 147                                 hide();
 148                                 break;
 149                 }
 150
 151                 return true;
 152         }
 153
 154 }
 155