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

   1 /*
   2  * Copyright 2008, 2009 Electronic Business Systems Ltd.
   3  *
   4  * This file is part of GSS.
   5  *
   6  * GSS is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GSS is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with GSS.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 package gr.ebs.gss.client.dnd;
  20
  21 import gr.ebs.gss.client.GSS;
  22 import gr.ebs.gss.client.rest.resource.FileResource;
  23 import gr.ebs.gss.client.rest.resource.FolderResource;
  24
  25 import java.util.List;
  26
  27 import com.allen_sauer.gwt.dnd.client.DragContext;
  28 import com.allen_sauer.gwt.dnd.client.drop.SimpleDropController;
  29
  30 /**
  31  * @author kman
  32  */
  33 public class DnDDropController extends SimpleDropController {
  34
  35         DnDFocusPanel nodeHolder;
  36
  37         public DnDDropController(DnDFocusPanel widget) {
  38                 super(widget);
  39                 nodeHolder = widget;
  40         }
  41
  42         @Override
  43         public void onDrop(DragContext context) {
  44                 super.onDrop(context);
  45                 if(context.draggable instanceof DnDFocusPanel){
  46                         DnDFocusPanel toDrop = (DnDFocusPanel) context.draggable;
  47                         if (toDrop.getItem() != null)
  48                                 if (toDrop.getItem().getUserObject() != null && toDrop.getItem().getUserObject() instanceof FolderResource) {
  49                                         FolderResource folderToDrop = (FolderResource) toDrop.getItem().getUserObject();
  50                                         FolderResource initialFolder = null;
  51                                         if (nodeHolder.getItem().getUserObject() instanceof FolderResource)
  52                                                 initialFolder = (FolderResource) nodeHolder.getItem().getUserObject();
  53                                         boolean othersShared = false;
  54                                         if (GSS.get().getFolders().isOthersSharedItem(nodeHolder.getItem()))
  55                                                 othersShared = true;
  56                                         DnDFolderPopupMenu popup = new DnDFolderPopupMenu(GSS.get().getFolders().getImages(), initialFolder, folderToDrop, othersShared);
  57                                         int left = nodeHolder.getItem().getAbsoluteLeft() + 40;
  58                                         int top = nodeHolder.getItem().getAbsoluteTop() + 20;
  59                                         popup.setPopupPosition(left, top);
  60                                         popup.show();
  61                                 }
  62                 }
  63                 else if(context.draggable instanceof DnDSimpleFocusPanel){
  64                         DnDSimpleFocusPanel toDrop = (DnDSimpleFocusPanel) context.draggable;
  65                         if (toDrop.getFiles() != null) {
  66                                 List<FileResource> folderToDrop = toDrop.getFiles();
  67                                 FolderResource initialFolder = null;
  68                                 if (GSS.get().getFolders().isTrash(nodeHolder.getItem())) {
  69                                 } else if (nodeHolder.getItem().getUserObject() instanceof FolderResource)
  70                                         initialFolder = (FolderResource) nodeHolder.getItem().getUserObject();
  71                                 boolean othersShared = false;
  72                                 if (GSS.get().getFolders().isOthersSharedItem(nodeHolder.getItem()))
  73                                         othersShared = true;
  74                                 DnDFolderPopupMenu popup = new DnDFolderPopupMenu(GSS.get().getFolders().getImages(), initialFolder, folderToDrop, othersShared);
  75                                 int left = nodeHolder.getItem().getAbsoluteLeft() + 40;
  76                                 int top = nodeHolder.getItem().getAbsoluteTop() + 20;
  77                                 popup.setPopupPosition(left, top);
  78                                 popup.show();
  79                         }
  80                 }
  81         }
  82
  83         @Override
  84         public void onEnter(DragContext context) {
  85                 super.onEnter(context);
  86                 nodeHolder.getItem().getWidget().addStyleName("gss-SelectedRow");
  87                 nodeHolder.getItem().setState(true);
  88                 GSS.get().getDragController().resetCache();
  89         }
  90
  91         @Override
  92         public void onLeave(DragContext context) {
  93                 if(!nodeHolder.getItem().equals(GSS.get().getFolders().getCurrent()))
  94                         nodeHolder.getItem().getWidget().removeStyleName("gss-SelectedRow");
  95                 super.onLeave(context);
  96         }
  97
  98 }