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

   1 /*
   2  * Copyright 2011 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above
  13  *      copyright notice, this list of conditions and the following
  14  *      disclaimer in the documentation and/or other materials
  15  *      provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * The views and conclusions contained in the software and
  31  * documentation are those of the authors and should not be
  32  * interpreted as representing official policies, either expressed
  33  * or implied, of GRNET S.A.
  34  */
  35 package gr.grnet.pithos.web.client.commands;
  36
  37 import gr.grnet.pithos.web.client.FileMenu.Images;
  38 import gr.grnet.pithos.web.client.FolderPropertiesDialog;
  39 import gr.grnet.pithos.web.client.GSS;
  40 import gr.grnet.pithos.web.client.rest.GetCommand;
  41 import gr.grnet.pithos.web.client.rest.MultipleGetCommand;
  42 import gr.grnet.pithos.web.client.rest.resource.GroupResource;
  43 import gr.grnet.pithos.web.client.rest.resource.GroupsResource;
  44 import gr.grnet.pithos.web.client.rest.resource.RestResource;
  45
  46 import java.util.ArrayList;
  47 import java.util.List;
  48
  49 import com.google.gwt.core.client.GWT;
  50 import com.google.gwt.user.client.Command;
  51 import com.google.gwt.user.client.DeferredCommand;
  52 import com.google.gwt.user.client.IncrementalCommand;
  53 import com.google.gwt.user.client.ui.PopupPanel;
  54
  55 /**
  56  * Display the 'new folder' dialog for creating a new folder.
  57  *
  58  */
  59 public class NewFolderCommand implements Command{
  60         private PopupPanel containerPanel;
  61         final Images images;
  62
  63         private List<GroupResource> groups = null;
  64
  65         /**
  66          * @param aContainerPanel
  67          * @param newImages the images of the new folder dialog
  68          */
  69         public NewFolderCommand(PopupPanel aContainerPanel, final Images newImages){
  70                 containerPanel = aContainerPanel;
  71                 images=newImages;
  72         }
  73
  74         @Override
  75         public void execute() {
  76                 containerPanel.hide();
  77                 getGroups();
  78                 DeferredCommand.addCommand(new IncrementalCommand() {
  79
  80                         @Override
  81                         public boolean execute() {
  82                                 boolean res = canContinue();
  83                                 if (res) {
  84                                         displayNewFolder();
  85                                         return false;
  86                                 }
  87                                 return true;
  88                         }
  89
  90                 });
  91         }
  92
  93         private boolean canContinue() {
  94                 if (groups == null)
  95                         return false;
  96                 return true;
  97         }
  98
  99         void displayNewFolder() {
 100                 RestResource currentFolder = GSS.get().getTreeView().getSelection();
 101                 if (currentFolder == null) {
 102                         GSS.get().displayError("You have to select the parent folder first");
 103                         return;
 104                 }
 105                 FolderPropertiesDialog dlg = new FolderPropertiesDialog(images, true,  groups);
 106                 dlg.center();
 107         }
 108
 109         private void getGroups() {
 110                 GetCommand<GroupsResource> gg = new GetCommand<GroupsResource>(GroupsResource.class, GSS.get().getCurrentUserResource().getGroupsPath(), null){
 111
 112                         @Override
 113                         public void onComplete() {
 114                                 GroupsResource res = getResult();
 115                                 MultipleGetCommand<GroupResource> ga = new MultipleGetCommand<GroupResource>(GroupResource.class, res.getGroupPaths().toArray(new String[]{}), null){
 116
 117                                         @Override
 118                                         public void onComplete() {
 119                                                 List<GroupResource> groupList = getResult();
 120                                                 groups = groupList;
 121                                         }
 122
 123                                         @Override
 124                                         public void onError(Throwable t) {
 125                                                 GWT.log("", t);
 126                                                 GSS.get().displayError("Unable to fetch groups");
 127                                                 groups = new ArrayList<GroupResource>();
 128                                         }
 129
 130                                         @Override
 131                                         public void onError(String p, Throwable throwable) {
 132                                                 GWT.log("Path:"+p, throwable);
 133                                         }
 134                                 };
 135                                 DeferredCommand.addCommand(ga);
 136                         }
 137
 138                         @Override
 139                         public void onError(Throwable t) {
 140                                 GWT.log("", t);
 141                                 GSS.get().displayError("Unable to fetch groups");
 142                                 groups = new ArrayList<GroupResource>();
 143                         }
 144                 };
 145                 DeferredCommand.addCommand(gg);
 146         }
 147
 148 }