code.grnet.gr Git - pithos/blob - src/gr/ebs/gss/client/commands/UploadFileCommand.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.commands;
  20
  21 import gr.ebs.gss.client.FileUploadDialog;
  22 import gr.ebs.gss.client.GSS;
  23 import gr.ebs.gss.client.rest.GetCommand;
  24 import gr.ebs.gss.client.rest.resource.FileResource;
  25 import gr.ebs.gss.client.rest.resource.FolderResource;
  26 import gr.ebs.gss.client.rest.resource.RestResource;
  27 import gr.ebs.gss.client.rest.resource.RestResourceWrapper;
  28
  29 import java.util.ArrayList;
  30 import java.util.List;
  31
  32 import com.google.gwt.core.client.GWT;
  33 import com.google.gwt.user.client.Command;
  34 import com.google.gwt.user.client.DeferredCommand;
  35 import com.google.gwt.user.client.IncrementalCommand;
  36 import com.google.gwt.user.client.ui.PopupPanel;
  37 import com.google.gwt.user.client.ui.TreeItem;
  38
  39 /**
  40  * Upload a file command
  41  *
  42  * @author kman
  43  */
  44 public class UploadFileCommand implements Command {
  45
  46         private PopupPanel containerPanel;
  47         private List<FileResource> files;
  48
  49         public UploadFileCommand(PopupPanel _containerPanel) {
  50                 containerPanel = _containerPanel;
  51         }
  52
  53         @Override
  54         public void execute() {
  55                 containerPanel.hide();
  56                 displayNewFile();
  57         }
  58
  59         /**
  60          * Display the 'new file' dialog for uploading a new file to the system.
  61          */
  62         private void displayNewFile() {
  63                 RestResource currentFolder = GSS.get().getTreeView().getSelection();
  64                 if (currentFolder == null) {
  65                         GSS.get().displayError("You have to select the parent folder first");
  66                         return;
  67                 }
  68                 getFileList();
  69                 DeferredCommand.addCommand(new IncrementalCommand() {
  70
  71                         @Override
  72                         public boolean execute() {
  73                                 boolean res = canContinue();
  74                                 if (res) {
  75                                         FileUploadDialog dlg = GWT.create(FileUploadDialog.class);
  76                                         dlg.setFiles(files);
  77                                         dlg.center();
  78                                         return false;
  79                                 }
  80                                 return true;
  81                         }
  82
  83                 });
  84         }
  85
  86         private boolean canContinue() {
  87                 if (files != null )
  88                         return true;
  89                 return false;
  90         }
  91
  92         private void getFileList() {
  93                 GetCommand<FolderResource> eg = new GetCommand<FolderResource>(FolderResource.class,((RestResourceWrapper)GSS.get().getTreeView().getSelection()).getUri(), null){
  94
  95                         @Override
  96                         public void onComplete() {
  97                                 files = getResult().getFiles();
  98                         }
  99
 100                         @Override
 101                         public void onError(Throwable t) {
 102                                 files = new ArrayList<FileResource>();
 103                         }
 104
 105                 };
 106                 DeferredCommand.addCommand(eg);
 107         }
 108
 109 }