code.grnet.gr Git - pithos/blob - web_client/src/gr/grnet/pithos/web/client/QuitDialog.java

   1 /*\r
   2  * Copyright (c) 2011 Greek Research and Technology Network\r
   3  */\r
   4 package gr.grnet.pithos.web.client;\r
   5 \r
   6 import com.google.gwt.core.client.GWT;\r
   7 import com.google.gwt.dom.client.NativeEvent;\r
   8 import com.google.gwt.event.dom.client.ClickEvent;\r
   9 import com.google.gwt.event.dom.client.ClickHandler;\r
  10 import com.google.gwt.event.dom.client.KeyCodes;\r
  11 import com.google.gwt.user.client.Event.NativePreviewEvent;\r
  12 import com.google.gwt.user.client.ui.Button;\r
  13 import com.google.gwt.user.client.ui.DialogBox;\r
  14 import com.google.gwt.user.client.ui.HTML;\r
  15 import com.google.gwt.user.client.ui.HasHorizontalAlignment;\r
  16 import com.google.gwt.user.client.ui.HorizontalPanel;\r
  17 import com.google.gwt.user.client.ui.VerticalPanel;\r
  18 \r
  19 /**\r
  20  * The 'quit' dialog box.\r
  21  */\r
  22 public class QuitDialog extends DialogBox {\r
  23 \r
  24         /**\r
  25          * The widget's constructor.\r
  26          */\r
  27         public QuitDialog() {\r
  28                 Configuration conf = (Configuration) GWT.create(Configuration.class);\r
  29                 String service = conf.serviceName();\r
  30                 setText("Quit " + service);\r
  31 \r
  32                 VerticalPanel outer = new VerticalPanel();\r
  33                 HorizontalPanel buttons = new HorizontalPanel();\r
  34 \r
  35                 HTML text = new HTML("Are you sure you want to quit " + service + "?");\r
  36                 text.setStyleName("pithos-AboutText");\r
  37                 outer.add(text);\r
  38 \r
  39                 // Create the 'Quit' button, along with a listener that hides the dialog\r
  40                 // when the button is clicked and quits the application.\r
  41                 Button quit = new Button("Quit", new ClickHandler() {\r
  42                         @Override\r
  43                         public void onClick(ClickEvent event) {\r
  44                                 hide();\r
  45                                 GSS.get().logout();\r
  46                         }\r
  47                 });\r
  48                 buttons.add(quit);\r
  49                 buttons.setCellHorizontalAlignment(quit, HasHorizontalAlignment.ALIGN_CENTER);\r
  50                 // Create the 'Cancel' button, along with a listener that hides the\r
  51                 // dialog when the button is clicked.\r
  52                 Button cancel = new Button("Cancel", new ClickHandler() {\r
  53                         @Override\r
  54                         public void onClick(ClickEvent event) {\r
  55                                 hide();\r
  56                         }\r
  57                 });\r
  58                 buttons.add(cancel);\r
  59                 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);\r
  60                 buttons.setSpacing(8);\r
  61                 outer.add(buttons);\r
  62                 outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);\r
  63                 setWidget(outer);\r
  64         }\r
  65 \r
  66         @Override\r
  67         protected void onPreviewNativeEvent(NativePreviewEvent preview) {\r
  68                 super.onPreviewNativeEvent(preview);\r
  69 \r
  70                 NativeEvent evt = preview.getNativeEvent();\r
  71                 if (evt.getType().equals("keydown"))\r
  72                         // Use the popup's key preview hooks to close the dialog when either\r
  73                         // enter or escape is pressed.\r
  74                         switch (evt.getKeyCode()) {\r
  75                                 case KeyCodes.KEY_ENTER:\r
  76                                         hide();\r
  77                                         GSS.get().logout();\r
  78                                         break;\r
  79                                 case KeyCodes.KEY_ESCAPE:\r
  80                                         hide();\r
  81                                         break;\r
  82                         }\r
  83         }\r
  84 \r
  85 \r
  86 }\r