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

   1 /*\r
   2  * Copyright 2011-2012 GRNET S.A. All rights reserved.\r
   3  *\r
   4  * Redistribution and use in source and binary forms, with or\r
   5  * without modification, are permitted provided that the following\r
   6  * conditions are met:\r
   7  *\r
   8  *   1. Redistributions of source code must retain the above\r
   9  *      copyright notice, this list of conditions and the following\r
  10  *      disclaimer.\r
  11  *\r
  12  *   2. Redistributions in binary form must reproduce the above\r
  13  *      copyright notice, this list of conditions and the following\r
  14  *      disclaimer in the documentation and/or other materials\r
  15  *      provided with the distribution.\r
  16  *\r
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS\r
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\r
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR\r
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR\r
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\r
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\r
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF\r
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED\r
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN\r
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r
  28  * POSSIBILITY OF SUCH DAMAGE.\r
  29  *\r
  30  * The views and conclusions contained in the software and\r
  31  * documentation are those of the authors and should not be\r
  32  * interpreted as representing official policies, either expressed\r
  33  * or implied, of GRNET S.A.\r
  34  */\r
  35 package gr.grnet.pithos.web.client;\r
  36 \r
  37 import gr.grnet.pithos.web.client.foldertree.Folder;\r
  38 \r
  39 import com.google.gwt.dom.client.NativeEvent;\r
  40 import com.google.gwt.event.dom.client.ClickEvent;\r
  41 import com.google.gwt.event.dom.client.ClickHandler;\r
  42 import com.google.gwt.event.dom.client.KeyCodes;\r
  43 import com.google.gwt.event.dom.client.KeyDownEvent;\r
  44 import com.google.gwt.user.client.Command;\r
  45 import com.google.gwt.user.client.Event.NativePreviewEvent;\r
  46 import com.google.gwt.user.client.ui.Anchor;\r
  47 import com.google.gwt.user.client.ui.Button;\r
  48 import com.google.gwt.user.client.ui.DialogBox;\r
  49 import com.google.gwt.user.client.ui.FlexTable;\r
  50 import com.google.gwt.user.client.ui.HasHorizontalAlignment;\r
  51 import com.google.gwt.user.client.ui.TextBox;\r
  52 import com.google.gwt.user.client.ui.VerticalPanel;\r
  53 \r
  54 /**\r
  55  * The 'Folder properties' dialog box implementation.\r
  56  */\r
  57 public class GroupCreateDialog extends DialogBox {\r
  58 \r
  59     protected Pithos app;\r
  60 \r
  61     private Command callback;\r
  62     \r
  63         /**\r
  64          * The widget that holds the folderName of the folder.\r
  65          */\r
  66         TextBox groupName = new TextBox();\r
  67 \r
  68         final VerticalPanel inner;\r
  69 \r
  70         public GroupCreateDialog(final Pithos app) {\r
  71                 this(app, null);\r
  72         }\r
  73         \r
  74         /**\r
  75          * The widget's constructor.\r
  76          */\r
  77         public GroupCreateDialog(final Pithos app, Command callback) {\r
  78         this.app = app;\r
  79         this.callback = callback;\r
  80         \r
  81                 Anchor close = new Anchor();\r
  82                 close.addStyleName("close");\r
  83                 close.addClickHandler(new ClickHandler() {\r
  84                         \r
  85                         @Override\r
  86                         public void onClick(ClickEvent event) {\r
  87                                 hide();\r
  88                         }\r
  89                 });\r
  90 \r
  91                 setAnimationEnabled(true);\r
  92                 setGlassEnabled(true);\r
  93                 setStyleName("pithos-DialogBox");\r
  94 \r
  95                 // Enable IE selection for the dialog (must disable it upon closing it)\r
  96                 Pithos.enableIESelection();\r
  97 \r
  98                 // Use this opportunity to set the dialog's caption.\r
  99                 setText("Create group");\r
 100 \r
 101                 // Outer contains inner and buttons\r
 102                 VerticalPanel outer = new VerticalPanel();\r
 103                 outer.add(close);\r
 104                 // Inner contains generalPanel and permPanel\r
 105                 inner = new VerticalPanel();\r
 106                 inner.addStyleName("inner");\r
 107 \r
 108                 VerticalPanel generalPanel = new VerticalPanel();\r
 109         FlexTable generalTable = new FlexTable();\r
 110         generalTable.setText(0, 0, "Name");\r
 111 \r
 112         generalTable.setWidget(0, 1, groupName);\r
 113 \r
 114         generalTable.getFlexCellFormatter().setStyleName(0, 0, "props-labels");\r
 115         generalTable.getFlexCellFormatter().setStyleName(0, 1, "props-values");\r
 116         generalTable.setCellSpacing(4);\r
 117         generalPanel.add(generalTable);\r
 118         inner.add(generalPanel);\r
 119 \r
 120         outer.add(inner);\r
 121 \r
 122                 // Create the 'Create/Update' button, along with a listener that hides the dialog\r
 123                 // when the button is clicked and quits the application.\r
 124                 String okLabel = "Create";\r
 125                 final Button ok = new Button(okLabel, new ClickHandler() {\r
 126                         @Override\r
 127                         public void onClick(ClickEvent event) {\r
 128                                 createGroup();\r
 129                                 closeDialog();\r
 130                         }\r
 131                 });\r
 132                 ok.addStyleName("button");\r
 133                 outer.add(ok);\r
 134         outer.setCellHorizontalAlignment(inner, HasHorizontalAlignment.ALIGN_CENTER);\r
 135 \r
 136         setWidget(outer);\r
 137         }\r
 138 \r
 139         @Override\r
 140         public void center() {\r
 141                 super.center();\r
 142                 groupName.setFocus(true);\r
 143         }\r
 144 \r
 145         @Override\r
 146         protected void onPreviewNativeEvent(NativePreviewEvent preview) {\r
 147                 super.onPreviewNativeEvent(preview);\r
 148 \r
 149                 NativeEvent evt = preview.getNativeEvent();\r
 150                 if (evt.getType().equals(KeyDownEvent.getType().getName()))\r
 151                         // Use the popup's key preview hooks to close the dialog when either\r
 152                         // enter or escape is pressed.\r
 153                         switch (evt.getKeyCode()) {\r
 154                                 case KeyCodes.KEY_ENTER:\r
 155                                         createGroup();\r
 156                     closeDialog();\r
 157                                         break;\r
 158                                 case KeyCodes.KEY_ESCAPE:\r
 159                                         closeDialog();\r
 160                                         break;\r
 161                         }\r
 162         }\r
 163 \r
 164 \r
 165         /**\r
 166          * Enables IE selection prevention and hides the dialog\r
 167          * (we disable the prevention on creation of the dialog)\r
 168          */\r
 169         public void closeDialog() {\r
 170                 Pithos.preventIESelection();\r
 171                 hide();\r
 172                 if (callback != null)\r
 173                         callback.execute();\r
 174         }\r
 175 \r
 176         /**\r
 177          * Generate an RPC request to create a new folder.\r
 178          */\r
 179         void createGroup() {\r
 180                 String name = groupName.getText().trim();\r
 181                 if (name.length() == 0)\r
 182                         return;\r
 183                 app.addGroup(name);\r
 184         }\r
 185 }\r