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

   1 /*\r
   2  * Copyright 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.event.dom.client.ClickEvent;\r
  22 import com.google.gwt.event.dom.client.ClickHandler;\r
  23 import com.google.gwt.resources.client.ClientBundle;\r
  24 import com.google.gwt.resources.client.ImageResource;\r
  25 import com.google.gwt.user.client.Command;\r
  26 import com.google.gwt.user.client.ui.AbstractImagePrototype;\r
  27 import com.google.gwt.user.client.ui.MenuBar;\r
  28 import com.google.gwt.user.client.ui.PopupPanel;\r
  29 \r
  30 /**\r
  31  * The 'Help' menu implementation.\r
  32  */\r
  33 public class HelpMenu extends PopupPanel implements ClickHandler {\r
  34 \r
  35         /**\r
  36          * The widget's images.\r
  37          */\r
  38         private final Images images;\r
  39 \r
  40         private MenuBar contextMenu  = new MenuBar(true);\r
  41 \r
  42         /**\r
  43          * An image bundle for this widget's images.\r
  44          */\r
  45         public interface Images extends ClientBundle{\r
  46                 @Source("gr/ebs/gss/resources/khelpcenter.png")\r
  47                 ImageResource userGuide();\r
  48 \r
  49                 @Source("gr/ebs/gss/resources/linewidth.png")\r
  50                 ImageResource terms();\r
  51 \r
  52                 @Source("gr/ebs/gss/resources/bell.png")\r
  53                 ImageResource reportAbuse();\r
  54 \r
  55                 @Source("gr/ebs/gss/resources/info.png")\r
  56                 ImageResource about();\r
  57         }\r
  58 \r
  59         /**\r
  60          * The widget's constructor.\r
  61          *\r
  62          * @param newImages the image bundle passed on by the parent object\r
  63          */\r
  64         public HelpMenu(final Images newImages) {\r
  65                 // The popup's constructor's argument is a boolean specifying that it\r
  66                 // auto-close itself when the user clicks outside of it.\r
  67                 super(true);\r
  68                 setAnimationEnabled(true);\r
  69                 images = newImages;\r
  70                 createMenu();\r
  71                 add(contextMenu);\r
  72         }\r
  73 \r
  74         public void onClick(ClickEvent event) {\r
  75                 HelpMenu menu = new HelpMenu(images);\r
  76                 int left = event.getRelativeElement().getAbsoluteLeft();\r
  77                 int top = event.getRelativeElement().getAbsoluteTop() + event.getRelativeElement().getOffsetHeight();\r
  78                 menu.setPopupPosition(left, top);\r
  79                 menu.show();\r
  80         }\r
  81 \r
  82         public MenuBar createMenu() {\r
  83                 contextMenu.clearItems();\r
  84                 contextMenu.setAutoOpen(false);\r
  85                 Command hideCommand = new Command() {\r
  86                         public void execute() {\r
  87                                 hide();\r
  88                         }\r
  89                 };\r
  90                 Command aboutCommand = new Command(){\r
  91                         public void execute() {\r
  92                                 AboutDialog dlg = new AboutDialog();\r
  93                                 dlg.center();\r
  94                         }\r
  95                 };\r
  96                 contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.userGuide()).getHTML() + "&nbsp;<a class='hidden-link' " +\r
  97                                         "href='/userguide/el' target='_blank'>User Guide</a></span>", true, hideCommand);\r
  98                 contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.terms()).getHTML() + "&nbsp;<a class='hidden-link' " +\r
  99                                         "href='/terms' target='_blank'>Terms &amp; Conditions</a></span>", true, hideCommand);\r
 100                 contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.reportAbuse()).getHTML() + "&nbsp;<a class='hidden-link' " +\r
 101                                 "href='/report-abuse' target='_blank'>Report abuse</a></span>", true, hideCommand);\r
 102                 contextMenu.addItem("<span>" + AbstractImagePrototype.create(images.about()).getHTML() + "&nbsp;About</span>", true, aboutCommand);\r
 103                 return contextMenu;\r
 104         }\r
 105 \r
 106 }\r