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

   1 /*\r
   2  * Copyright 2011 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 com.google.gwt.core.client.Scheduler;\r
  38 import com.google.gwt.event.dom.client.KeyDownEvent;\r
  39 import com.google.gwt.user.client.Event;\r
  40 import gr.grnet.pithos.web.client.MessagePanel.Images;\r
  41 import gr.grnet.pithos.web.client.foldertree.Folder;\r
  42 import gr.grnet.pithos.web.client.foldertree.Resource;\r
  43 import gr.grnet.pithos.web.client.rest.DeleteCommand;\r
  44 import gr.grnet.pithos.web.client.rest.DeleteRequest;\r
  45 import gr.grnet.pithos.web.client.rest.RestException;\r
  46 import gr.grnet.pithos.web.client.rest.resource.FolderResource;\r
  47 import gr.grnet.pithos.web.client.rest.resource.RestResource;\r
  48 import gr.grnet.pithos.web.client.rest.resource.RestResourceWrapper;\r
  49 import gr.grnet.pithos.web.client.rest.resource.TrashFolderResource;\r
  50 \r
  51 import com.google.gwt.core.client.GWT;\r
  52 import com.google.gwt.dom.client.NativeEvent;\r
  53 import com.google.gwt.event.dom.client.ClickEvent;\r
  54 import com.google.gwt.event.dom.client.ClickHandler;\r
  55 import com.google.gwt.event.dom.client.KeyCodes;\r
  56 import com.google.gwt.user.client.DeferredCommand;\r
  57 import com.google.gwt.user.client.Event.NativePreviewEvent;\r
  58 import com.google.gwt.user.client.ui.AbstractImagePrototype;\r
  59 import com.google.gwt.user.client.ui.Button;\r
  60 import com.google.gwt.user.client.ui.DialogBox;\r
  61 import com.google.gwt.user.client.ui.HTML;\r
  62 import com.google.gwt.user.client.ui.HasHorizontalAlignment;\r
  63 import com.google.gwt.user.client.ui.HorizontalPanel;\r
  64 import com.google.gwt.user.client.ui.VerticalPanel;\r
  65 \r
  66 /**\r
  67  * The 'delete folder' dialog box.\r
  68  */\r
  69 public class DeleteFolderDialog extends DialogBox {\r
  70 \r
  71     private GSS app;\r
  72     private Folder folder;\r
  73     \r
  74         /**\r
  75          * The widget's constructor.\r
  76          * @param images the supplied images\r
  77          */\r
  78         public DeleteFolderDialog(GSS app, Images images, Folder folder) {\r
  79         this.app = app;\r
  80         this.folder = folder;\r
  81                 // Set the dialog's caption.\r
  82                 setText("Confirmation");\r
  83                 setAnimationEnabled(true);\r
  84                 // Create a VerticalPanel to contain the HTML label and the buttons.\r
  85                 VerticalPanel outer = new VerticalPanel();\r
  86                 HorizontalPanel buttons = new HorizontalPanel();\r
  87 \r
  88                 HTML text = new HTML("<table><tr><td rowspan='2'>" + AbstractImagePrototype.create(images.warn()).getHTML() +\r
  89                                         "</td><td>" + "Are you sure you want to <b>permanently</b> delete folder '" + folder.getName() +\r
  90                                         "'?</td></tr></table>");\r
  91                 text.setStyleName("pithos-warnMessage");\r
  92                 outer.add(text);\r
  93 \r
  94                 // Create the 'Delete' button, along with a listener that hides the dialog\r
  95                 // when the button is clicked and deletes the folder.\r
  96                 Button ok = new Button("Delete", new ClickHandler() {\r
  97                         @Override\r
  98                         public void onClick(ClickEvent event) {\r
  99                                 deleteFolder();\r
 100                                 hide();\r
 101                         }\r
 102                 });\r
 103                 buttons.add(ok);\r
 104                 buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);\r
 105                 // Create the 'Cancel' button, along with a listener that hides the\r
 106                 // dialog when the button is clicked.\r
 107                 Button cancel = new Button("Cancel", new ClickHandler() {\r
 108                         @Override\r
 109                         public void onClick(ClickEvent event) {\r
 110                                 hide();\r
 111                         }\r
 112                 });\r
 113                 buttons.add(cancel);\r
 114                 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);\r
 115                 buttons.setSpacing(8);\r
 116                 buttons.setStyleName("pithos-warnMessage");\r
 117                 outer.setStyleName("pithos-warnMessage");\r
 118                 outer.add(buttons);\r
 119                 outer.setCellHorizontalAlignment(text, HasHorizontalAlignment.ALIGN_CENTER);\r
 120                 outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);\r
 121                 setWidget(outer);\r
 122         }\r
 123 \r
 124         /**\r
 125          * Generate an RPC request to delete a folder.\r
 126          *\r
 127          */\r
 128         private void deleteFolder() {\r
 129         String prefix = folder.getPrefix();\r
 130         String path = app.getApiPath() + app.getUsername() + "/" + folder.getContainer() + (prefix.length() == 0 ? "" : "/" + prefix);\r
 131         DeleteRequest deleteFolder = new DeleteRequest(path) {\r
 132             @Override\r
 133             public void onSuccess(Resource result) {\r
 134 \r
 135             }\r
 136 \r
 137             @Override\r
 138             public void onError(Throwable t) {\r
 139                 GWT.log("", t);\r
 140                 if (t instanceof RestException) {\r
 141                     int statusCode = ((RestException)t).getHttpStatusCode();\r
 142                     app.displayError("Unable to delete folder: "+((RestException) t).getHttpStatusText());\r
 143                 }\r
 144                 else\r
 145                     GSS.get().displayError("System error unable to delete folder: " + t.getMessage());\r
 146             }\r
 147         };\r
 148         deleteFolder.setHeader("X-Auth-Token", app.getToken());\r
 149         Scheduler.get().scheduleDeferred(deleteFolder);\r
 150         }\r
 151 \r
 152         @Override\r
 153         protected void onPreviewNativeEvent(NativePreviewEvent preview) {\r
 154                 super.onPreviewNativeEvent(preview);\r
 155 \r
 156                 NativeEvent evt = preview.getNativeEvent();\r
 157                 if (evt.getType().equals(KeyDownEvent.getType().getName()))\r
 158                         // Use the popup's key preview hooks to close the dialog when either\r
 159                         // enter or escape is pressed.\r
 160                         switch (evt.getKeyCode()) {\r
 161                                 case KeyCodes.KEY_ENTER:\r
 162                                         hide();\r
 163                                         deleteFolder();\r
 164                                         break;\r
 165                                 case KeyCodes.KEY_ESCAPE:\r
 166                                         hide();\r
 167                                         break;\r
 168                         }\r
 169         }\r
 170 \r
 171 }\r