code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/QuitDialog.java

   1 /*\r
   2  * Copyright 2007, 2008, 2009 Electronic Business Systems Ltd.\r
   3  *\r
   4  * This file is part of GSS.\r
   5  *\r
   6  * GSS is free software: you can redistribute it and/or modify\r
   7  * it under the terms of the GNU General Public License as published by\r
   8  * the Free Software Foundation, either version 3 of the License, or\r
   9  * (at your option) any later version.\r
  10  *\r
  11  * GSS is distributed in the hope that it will be useful,\r
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14  * GNU General Public License for more details.\r
  15  *\r
  16  * You should have received a copy of the GNU General Public License\r
  17  * along with GSS.  If not, see <http://www.gnu.org/licenses/>.\r
  18  */\r
  19 package gr.ebs.gss.client;\r
  20 \r
  21 import com.google.gwt.core.client.GWT;\r
  22 import com.google.gwt.dom.client.NativeEvent;\r
  23 import com.google.gwt.event.dom.client.ClickEvent;\r
  24 import com.google.gwt.event.dom.client.ClickHandler;\r
  25 import com.google.gwt.event.dom.client.KeyCodes;\r
  26 import com.google.gwt.user.client.Event.NativePreviewEvent;\r
  27 import com.google.gwt.user.client.ui.Button;\r
  28 import com.google.gwt.user.client.ui.DialogBox;\r
  29 import com.google.gwt.user.client.ui.HTML;\r
  30 import com.google.gwt.user.client.ui.HasHorizontalAlignment;\r
  31 import com.google.gwt.user.client.ui.HorizontalPanel;\r
  32 import com.google.gwt.user.client.ui.VerticalPanel;\r
  33 \r
  34 /**\r
  35  * The 'quit' dialog box.\r
  36  */\r
  37 public class QuitDialog extends DialogBox {\r
  38 \r
  39         /**\r
  40          * The widget's constructor.\r
  41          */\r
  42         public QuitDialog() {\r
  43                 Configuration conf = (Configuration) GWT.create(Configuration.class);\r
  44                 String service = conf.serviceName();\r
  45                 setText("Quit " + service);\r
  46 \r
  47                 VerticalPanel outer = new VerticalPanel();\r
  48                 HorizontalPanel buttons = new HorizontalPanel();\r
  49 \r
  50                 HTML text = new HTML("Are you sure you want to quit " + service + "?");\r
  51                 text.setStyleName("gss-AboutText");\r
  52                 outer.add(text);\r
  53 \r
  54                 // Create the 'Quit' button, along with a listener that hides the dialog\r
  55                 // when the button is clicked and quits the application.\r
  56                 Button quit = new Button("Quit", new ClickHandler() {\r
  57                         @Override\r
  58                         public void onClick(ClickEvent event) {\r
  59                                 hide();\r
  60                                 GSS.get().logout();\r
  61                         }\r
  62                 });\r
  63                 buttons.add(quit);\r
  64                 buttons.setCellHorizontalAlignment(quit, HasHorizontalAlignment.ALIGN_CENTER);\r
  65                 // Create the 'Cancel' button, along with a listener that hides the\r
  66                 // dialog when the button is clicked.\r
  67                 Button cancel = new Button("Cancel", new ClickHandler() {\r
  68                         @Override\r
  69                         public void onClick(ClickEvent event) {\r
  70                                 hide();\r
  71                         }\r
  72                 });\r
  73                 buttons.add(cancel);\r
  74                 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);\r
  75                 buttons.setSpacing(8);\r
  76                 outer.add(buttons);\r
  77                 outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);\r
  78                 setWidget(outer);\r
  79         }\r
  80 \r
  81         @Override\r
  82         protected void onPreviewNativeEvent(NativePreviewEvent preview) {\r
  83                 super.onPreviewNativeEvent(preview);\r
  84 \r
  85                 NativeEvent evt = preview.getNativeEvent();\r
  86                 if (evt.getType().equals("keydown"))\r
  87                         // Use the popup's key preview hooks to close the dialog when either\r
  88                         // enter or escape is pressed.\r
  89                         switch (evt.getKeyCode()) {\r
  90                                 case KeyCodes.KEY_ENTER:\r
  91                                         hide();\r
  92                                         GSS.get().logout();\r
  93                                         break;\r
  94                                 case KeyCodes.KEY_ESCAPE:\r
  95                                         hide();\r
  96                                         break;\r
  97                         }\r
  98         }\r
  99 \r
 100 \r
 101 }\r