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.GroupResource;
  25 import gr.ebs.gss.client.rest.resource.GroupUserResource;
  26
  27 import com.google.gwt.core.client.GWT;
  28 import com.google.gwt.user.client.DeferredCommand;
  29 import com.google.gwt.user.client.ui.Button;
  30 import com.google.gwt.user.client.ui.ClickListener;
  31 import com.google.gwt.user.client.ui.DialogBox;
  32 import com.google.gwt.user.client.ui.HTML;
  33 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  34 import com.google.gwt.user.client.ui.HorizontalPanel;
  35 import com.google.gwt.user.client.ui.KeyboardListener;
  36 import com.google.gwt.user.client.ui.TreeItem;
  37 import com.google.gwt.user.client.ui.VerticalPanel;
  38 import com.google.gwt.user.client.ui.Widget;
  39
  40
  41 /**
  42  * @author kman
  43  *
  44  */
  45 public class DeleteUserDialog extends DialogBox {
  46
  47         /**
  48          * The widget's constructor.
  49          * @param images the supplied images
  50          */
  51         public DeleteUserDialog(final Images images) {
  52                 // Use this opportunity to set the dialog's caption.
  53                 setText("Delete user");
  54                 setAnimationEnabled(true);
  55                 final GroupUserResource group = (GroupUserResource) GSS.get().getCurrentSelection();
  56                 // Create a VerticalPanel to contain the 'about' label and the 'OK'
  57                 // button.
  58                 final VerticalPanel outer = new VerticalPanel();
  59                 final HorizontalPanel buttons = new HorizontalPanel();
  60
  61                 // Create the 'about' text and set a style name so we can style it with
  62                 // CSS.
  63                 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>");
  64                 text.setStyleName("gss-warnMessage");
  65                 outer.add(text);
  66
  67                 // Create the 'Quit' button, along with a listener that hides the dialog
  68                 // when the button is clicked and quits the application.
  69                 final Button ok = new Button("OK", new ClickListener() {
  70
  71                         public void onClick(Widget sender) {
  72                                 deleteUser();
  73                                 hide();
  74                         }
  75                 });
  76                 buttons.add(ok);
  77                 buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);
  78                 // Create the 'Cancel' button, along with a listener that hides the
  79                 // dialog
  80                 // when the button is clicked.
  81                 final Button cancel = new Button("Cancel", new ClickListener() {
  82
  83                         public void onClick(Widget sender) {
  84                                 hide();
  85                         }
  86                 });
  87                 buttons.add(cancel);
  88                 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);
  89                 buttons.setSpacing(8);
  90                 buttons.setStyleName("gss-warnMessage");
  91                 outer.setStyleName("gss-warnMessage");
  92                 outer.add(buttons);
  93                 outer.setCellHorizontalAlignment(text, HasHorizontalAlignment.ALIGN_CENTER);
  94                 outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);
  95                 setWidget(outer);
  96         }
  97
  98         /**
  99          * Generate an RPC request to delete a group.
 100          *
 101          * @param userId the ID of the current user
 102          */
 103         private void deleteUser() {
 104                 final TreeItem user = GSS.get().getGroups().getCurrent();
 105                 final TreeItem group = user.getParentItem();
 106                 if (group == null) {
 107                         GSS.get().displayError("No user was selected!");
 108                         return;
 109                 }
 110                 final GroupResource groupR = (GroupResource) group.getUserObject();
 111                 final GroupUserResource memberR = (GroupUserResource) user.getUserObject();
 112                 DeleteCommand du = new DeleteCommand(memberR.getUri()){
 113
 114                         public void onComplete() {
 115                                 GSS.get().getGroups().updateGroups();
 116                         }
 117
 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         /*
 138          * (non-Javadoc)
 139          *
 140          * @see com.google.gwt.user.client.ui.PopupPanel#onKeyDownPreview(char, int)
 141          */
 142         public boolean onKeyDownPreview(final char key, final int modifiers) {
 143                 // Use the popup's key preview hooks to close the dialog when either
 144                 // enter or escape is pressed.
 145                 switch (key) {
 146                         case KeyboardListener.KEY_ENTER:
 147                                 hide();
 148                                 deleteUser();
 149                                 break;
 150                         case KeyboardListener.KEY_ESCAPE:
 151                                 hide();
 152                                 break;
 153                 }
 154
 155                 return true;
 156         }
 157
 158 }
 159