code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/DeleteFolderDialog.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 gr.ebs.gss.client.MessagePanel.Images;\r
  22 import gr.ebs.gss.client.dnd.DnDTreeItem;\r
  23 import gr.ebs.gss.client.rest.DeleteCommand;\r
  24 import gr.ebs.gss.client.rest.RestException;\r
  25 import gr.ebs.gss.client.rest.resource.FolderResource;\r
  26 \r
  27 import com.google.gwt.core.client.GWT;\r
  28 import com.google.gwt.user.client.DeferredCommand;\r
  29 import com.google.gwt.user.client.ui.Button;\r
  30 import com.google.gwt.user.client.ui.ClickListener;\r
  31 import com.google.gwt.user.client.ui.DialogBox;\r
  32 import com.google.gwt.user.client.ui.HTML;\r
  33 import com.google.gwt.user.client.ui.HasHorizontalAlignment;\r
  34 import com.google.gwt.user.client.ui.HorizontalPanel;\r
  35 import com.google.gwt.user.client.ui.KeyboardListener;\r
  36 import com.google.gwt.user.client.ui.TreeItem;\r
  37 import com.google.gwt.user.client.ui.VerticalPanel;\r
  38 import com.google.gwt.user.client.ui.Widget;\r
  39 \r
  40 /**\r
  41  * The 'delete folder' dialog box.\r
  42  */\r
  43 public class DeleteFolderDialog extends DialogBox {\r
  44 \r
  45         /**\r
  46          * The widget's constructor.\r
  47          * @param images the supplied images\r
  48          */\r
  49         public DeleteFolderDialog(Images images) {\r
  50                 // Set the dialog's caption.\r
  51                 setText("Confirmation");\r
  52                 setAnimationEnabled(true);\r
  53                 FolderResource folder = (FolderResource) GSS.get().getCurrentSelection();\r
  54                 // Create a VerticalPanel to contain the HTML label and the buttons.\r
  55                 VerticalPanel outer = new VerticalPanel();\r
  56                 HorizontalPanel buttons = new HorizontalPanel();\r
  57 \r
  58                 HTML text = new HTML("<table><tr><td rowspan='2'>" + images.warn().getHTML() +\r
  59                                         "</td><td>" + "Are you sure you want to <b>permanently</b> delete folder '" + folder.getName() +\r
  60                                         "'?</td></tr></table>");\r
  61                 text.setStyleName("gss-warnMessage");\r
  62                 outer.add(text);\r
  63 \r
  64                 // Create the 'Delete' button, along with a listener that hides the dialog\r
  65                 // when the button is clicked and deletes the folder.\r
  66                 Button ok = new Button("Delete", new ClickListener() {\r
  67 \r
  68                         public void onClick(Widget sender) {\r
  69                                 deleteFolder();\r
  70                                 hide();\r
  71                         }\r
  72                 });\r
  73                 buttons.add(ok);\r
  74                 buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);\r
  75                 // Create the 'Cancel' button, along with a listener that hides the\r
  76                 // dialog when the button is clicked.\r
  77                 Button cancel = new Button("Cancel", new ClickListener() {\r
  78 \r
  79                         public void onClick(Widget sender) {\r
  80                                 hide();\r
  81                         }\r
  82                 });\r
  83                 buttons.add(cancel);\r
  84                 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);\r
  85                 buttons.setSpacing(8);\r
  86                 buttons.setStyleName("gss-warnMessage");\r
  87                 outer.setStyleName("gss-warnMessage");\r
  88                 outer.add(buttons);\r
  89                 outer.setCellHorizontalAlignment(text, HasHorizontalAlignment.ALIGN_CENTER);\r
  90                 outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);\r
  91                 setWidget(outer);\r
  92         }\r
  93 \r
  94         /**\r
  95          * Generate an RPC request to delete a folder.\r
  96          *\r
  97          * @param userId the ID of the current user\r
  98          */\r
  99         private void deleteFolder() {\r
 100 \r
 101                 DnDTreeItem folder = (DnDTreeItem) GSS.get().getFolders().getCurrent();\r
 102                 if (folder == null) {\r
 103                         GSS.get().displayError("No folder was selected");\r
 104                         return;\r
 105                 }\r
 106                 if(folder.getFolderResource() == null)\r
 107                         return;\r
 108 \r
 109                 DeleteCommand df = new DeleteCommand(folder.getFolderResource().getUri()){\r
 110 \r
 111                         @Override\r
 112                         public void onComplete() {\r
 113                                 TreeItem curFolder = GSS.get().getFolders().getCurrent();\r
 114                                 if(curFolder.getParentItem() != null){\r
 115                                         GSS.get().getFolders().select(curFolder.getParentItem());\r
 116                                         GSS.get().getFolders().updateFolder((DnDTreeItem) curFolder.getParentItem());\r
 117                                 }\r
 118                                 GSS.get().showFileList(true);\r
 119                                 GSS.get().getStatusPanel().updateStats();\r
 120                         }\r
 121 \r
 122                         @Override\r
 123                         public void onError(Throwable t) {\r
 124                                 GWT.log("", t);\r
 125                                 if(t instanceof RestException){\r
 126                                         int statusCode = ((RestException)t).getHttpStatusCode();\r
 127                                         if(statusCode == 405)\r
 128                                                 GSS.get().displayError("You don't have the necessary permissions");\r
 129                                         else if(statusCode == 404)\r
 130                                                 GSS.get().displayError("Folder not found");\r
 131                                         else\r
 132                                                 GSS.get().displayError("Unable to delete folder: "+((RestException)t).getHttpStatusText());\r
 133                                 }\r
 134                                 else\r
 135                                         GSS.get().displayError("System error unable to delete folder: "+t.getMessage());\r
 136                         }\r
 137                 };\r
 138 \r
 139                 DeferredCommand.addCommand(df);\r
 140         }\r
 141 \r
 142         @Override\r
 143         public boolean onKeyDownPreview(final char key, final int modifiers) {\r
 144                 // Use the popup's key preview hooks to close the dialog when either\r
 145                 // enter or escape is pressed.\r
 146                 switch (key) {\r
 147                         case KeyboardListener.KEY_ENTER:\r
 148                                 hide();\r
 149                                 deleteFolder();\r
 150                                 break;\r
 151                         case KeyboardListener.KEY_ESCAPE:\r
 152                                 hide();\r
 153                                 break;\r
 154                 }\r
 155                 return true;\r
 156         }\r
 157 \r
 158 }\r