code.grnet.gr Git - pithos-web-client/blob - 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.event.dom.client.KeyDownEvent;\r
  38 import gr.grnet.pithos.web.client.MessagePanel.Images;\r
  39 import gr.grnet.pithos.web.client.foldertree.Folder;\r
  40 \r
  41 import com.google.gwt.dom.client.NativeEvent;\r
  42 import com.google.gwt.event.dom.client.ClickEvent;\r
  43 import com.google.gwt.event.dom.client.ClickHandler;\r
  44 import com.google.gwt.event.dom.client.KeyCodes;\r
  45 import com.google.gwt.user.client.Event.NativePreviewEvent;\r
  46 import com.google.gwt.user.client.ui.AbstractImagePrototype;\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.HTML;\r
  50 import com.google.gwt.user.client.ui.HasHorizontalAlignment;\r
  51 import com.google.gwt.user.client.ui.HorizontalPanel;\r
  52 import com.google.gwt.user.client.ui.VerticalPanel;\r
  53 \r
  54 /**\r
  55  * The 'delete folder' dialog box.\r
  56  */\r
  57 public class DeleteFolderDialog extends DialogBox {\r
  58 \r
  59         protected Pithos app;\r
  60         protected Folder folder;\r
  61     \r
  62         /**\r
  63          * The widget's constructor.\r
  64          * @param images the supplied images\r
  65          */\r
  66         public DeleteFolderDialog(Pithos _app, Images images, Folder _folder) {\r
  67         this.app = _app;\r
  68         this.folder = _folder;\r
  69                 // Set the dialog's caption.\r
  70                 setText("Confirmation");\r
  71                 setAnimationEnabled(true);\r
  72                 // Create a VerticalPanel to contain the HTML label and the buttons.\r
  73                 VerticalPanel outer = new VerticalPanel();\r
  74                 HorizontalPanel buttons = new HorizontalPanel();\r
  75 \r
  76                 HTML text = new HTML("<table><tr><td rowspan='2'>" + AbstractImagePrototype.create(images.warn()).getHTML() +\r
  77                                         "</td><td>" + "Are you sure you want to <b>permanently</b> delete folder '" + folder.getName() +\r
  78                                         "'?</td></tr></table>");\r
  79                 text.setStyleName("pithos-warnMessage");\r
  80                 outer.add(text);\r
  81 \r
  82                 // Create the 'Delete' button, along with a listener that hides the dialog\r
  83                 // when the button is clicked and deletes the folder.\r
  84                 Button ok = new Button("Delete", new ClickHandler() {\r
  85                         @Override\r
  86                         public void onClick(@SuppressWarnings("unused") ClickEvent event) {\r
  87                                 app.deleteFolder(folder);\r
  88                                 hide();\r
  89                         }\r
  90                 });\r
  91                 buttons.add(ok);\r
  92                 buttons.setCellHorizontalAlignment(ok, HasHorizontalAlignment.ALIGN_CENTER);\r
  93                 // Create the 'Cancel' button, along with a listener that hides the\r
  94                 // dialog when the button is clicked.\r
  95                 Button cancel = new Button("Cancel", new ClickHandler() {\r
  96                         @Override\r
  97                         public void onClick(@SuppressWarnings("unused") ClickEvent event) {\r
  98                                 hide();\r
  99                         }\r
 100                 });\r
 101                 buttons.add(cancel);\r
 102                 buttons.setCellHorizontalAlignment(cancel, HasHorizontalAlignment.ALIGN_CENTER);\r
 103                 buttons.setSpacing(8);\r
 104                 buttons.setStyleName("pithos-warnMessage");\r
 105                 outer.setStyleName("pithos-warnMessage");\r
 106                 outer.add(buttons);\r
 107                 outer.setCellHorizontalAlignment(text, HasHorizontalAlignment.ALIGN_CENTER);\r
 108                 outer.setCellHorizontalAlignment(buttons, HasHorizontalAlignment.ALIGN_CENTER);\r
 109                 setWidget(outer);\r
 110         }\r
 111 \r
 112         @Override\r
 113         protected void onPreviewNativeEvent(NativePreviewEvent preview) {\r
 114                 super.onPreviewNativeEvent(preview);\r
 115 \r
 116                 NativeEvent evt = preview.getNativeEvent();\r
 117                 if (evt.getType().equals(KeyDownEvent.getType().getName()))\r
 118                         // Use the popup's key preview hooks to close the dialog when either\r
 119                         // enter or escape is pressed.\r
 120                         switch (evt.getKeyCode()) {\r
 121                                 case KeyCodes.KEY_ENTER:\r
 122                                         hide();\r
 123                                         app.deleteFolder(folder);\r
 124                                         break;\r
 125                                 case KeyCodes.KEY_ESCAPE:\r
 126                                         hide();\r
 127                                         break;\r
 128                         }\r
 129         }\r
 130 \r
 131 }\r