code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/GroupPropertiesDialog.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.rest.PostCommand;
  22 import gr.ebs.gss.client.rest.RestException;
  23
  24 import com.google.gwt.core.client.GWT;
  25 import com.google.gwt.dom.client.NativeEvent;
  26 import com.google.gwt.event.dom.client.ClickEvent;
  27 import com.google.gwt.event.dom.client.ClickHandler;
  28 import com.google.gwt.event.dom.client.KeyCodes;
  29 import com.google.gwt.http.client.URL;
  30 import com.google.gwt.user.client.DeferredCommand;
  31 import com.google.gwt.user.client.Event.NativePreviewEvent;
  32 import com.google.gwt.user.client.ui.Button;
  33 import com.google.gwt.user.client.ui.DialogBox;
  34 import com.google.gwt.user.client.ui.Grid;
  35 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  36 import com.google.gwt.user.client.ui.HorizontalPanel;
  37 import com.google.gwt.user.client.ui.TextBox;
  38 import com.google.gwt.user.client.ui.VerticalPanel;
  39
  40 /**
  41  * @author kman
  42  */
  43 public class GroupPropertiesDialog extends DialogBox {
  44
  45         /**
  46          * The widget that holds the folderName of the folder.
  47          */
  48         private TextBox groupName = new TextBox();
  49
  50         /**
  51          * A flag that denotes whether the dialog will be used to create or modify a
  52          * folder.
  53          */
  54         private final boolean create;
  55
  56         /**
  57          * The widget's constructor.
  58          *
  59          * @param _create true if the dialog is displayed for creating a new
  60          *            sub-folder of the selected folder, false if it is displayed
  61          *            for modifying the selected folder
  62          */
  63         public GroupPropertiesDialog(final boolean _create) {
  64                 setAnimationEnabled(true);
  65                 create = _create;
  66                 // Use this opportunity to set the dialog's caption.
  67                 if (create)
  68                         setText("Create Group");
  69                 else
  70                         setText("Group properties");
  71                 final VerticalPanel panel = new VerticalPanel();
  72                 setWidget(panel);
  73                 final Grid generalTable = new Grid(1, 2);
  74                 generalTable.setText(0, 0, "Group Name");
  75                 generalTable.setWidget(0, 1, groupName);
  76                 generalTable.getCellFormatter().setStyleName(0, 0, "props-labels");
  77                 generalTable.getCellFormatter().setStyleName(0, 1, "props-values");
  78                 generalTable.setCellSpacing(4);
  79
  80                 panel.add(generalTable);
  81                 final HorizontalPanel buttons = new HorizontalPanel();
  82                 final Button ok = new Button("OK", new ClickHandler() {
  83                         @Override
  84                         public void onClick(ClickEvent event) {
  85                                 createGroup(groupName.getText());
  86                                 hide();
  87                         }
  88                 });
  89                 buttons.add(ok);
  90                 buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);
  91                 // Create the 'Cancel' button, along with a listener that hides the
  92                 // dialog
  93                 // when the button is clicked.
  94                 final Button cancel = new Button("Cancel", new ClickHandler() {
  95                         @Override
  96                         public void onClick(ClickEvent event) {
  97                                 hide();
  98                         }
  99                 });
 100                 buttons.add(cancel);
 101                 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);
 102                 buttons.setSpacing(8);
 103                 buttons.addStyleName("gss-TabPanelBottom");
 104                 panel.add(buttons);
 105                 panel.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);
 106                 //panel.addStyleName("gss-DialogBox");
 107                 panel.addStyleName("gss-TabPanelBottom");
 108                 groupName.setFocus(true);
 109         }
 110
 111         @Override
 112         protected void onPreviewNativeEvent(NativePreviewEvent preview) {
 113                 super.onPreviewNativeEvent(preview);
 114
 115                 NativeEvent evt = preview.getNativeEvent();
 116                 if (evt.getType().equals("keydown"))
 117                         // Use the popup's key preview hooks to close the dialog when either
 118                         // enter or escape is pressed.
 119                         switch (evt.getKeyCode()) {
 120                                 case KeyCodes.KEY_ENTER:
 121                                         hide();
 122                                         createGroup( groupName.getText());
 123                                         break;
 124                                 case KeyCodes.KEY_ESCAPE:
 125                                         hide();
 126                                         break;
 127                         }
 128         }
 129
 130
 131         /**
 132          * Generate an RPC request to create a new group.
 133          *
 134          * @param userId the ID of the user whose namespace will be searched for
 135          *            groups
 136          * @param aGroupName the name of the group to create
 137          */
 138         private void createGroup(String aGroupName) {
 139
 140                 if (aGroupName == null || aGroupName.length() == 0) {
 141                         GSS.get().displayError("Empty group name!");
 142                         return;
 143                 }
 144                 GWT.log("createGroup(" + aGroupName + ")", null);
 145                 PostCommand cg = new PostCommand(GSS.get().getCurrentUserResource().getGroupsPath()+"?name="+URL.encodeComponent(aGroupName), "", 201){
 146
 147                         @Override
 148                         public void onComplete() {
 149                                 GSS.get().getGroups().updateGroups();
 150                                 GSS.get().showUserList();
 151                         }
 152
 153                         @Override
 154                         public void onError(Throwable t) {
 155                                 GWT.log("", t);
 156                                 if(t instanceof RestException){
 157                                         int statusCode = ((RestException)t).getHttpStatusCode();
 158                                         if(statusCode == 405)
 159                                                 GSS.get().displayError("You don't have the necessary permissions");
 160                                         else if(statusCode == 404)
 161                                                 GSS.get().displayError("Resource does not exist");
 162                                         else if(statusCode == 409)
 163                                                 GSS.get().displayError("A group with the same name already exists");
 164                                         else if(statusCode == 413)
 165                                                 GSS.get().displayError("Your quota has been exceeded");
 166                                         else
 167                                                 GSS.get().displayError("Unable to create group:"+((RestException)t).getHttpStatusText());
 168                                 }
 169                                 else
 170                                         GSS.get().displayError("System error creating group:"+t.getMessage());
 171                         }
 172                 };
 173                 DeferredCommand.addCommand(cg);
 174
 175         }
 176 }