Fixed offset of context menu when the page had been scrolled (issue #2436)
[pithos-web-client] / src / gr / grnet / pithos / web / client / Pithos.java
index 6907b0d..b7adf86 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright 2011 GRNET S.A. All rights reserved.
+ * Copyright 2011-2012 GRNET S.A. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or
  * without modification, are permitted provided that the following
@@ -41,17 +41,18 @@ import gr.grnet.pithos.web.client.foldertree.Folder;
 import gr.grnet.pithos.web.client.foldertree.FolderTreeView;
 import gr.grnet.pithos.web.client.foldertree.FolderTreeViewModel;
 import gr.grnet.pithos.web.client.foldertree.Resource;
+import gr.grnet.pithos.web.client.grouptree.Group;
+import gr.grnet.pithos.web.client.grouptree.GroupTreeView;
+import gr.grnet.pithos.web.client.grouptree.GroupTreeViewModel;
 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeView;
 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeViewModel;
 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeView;
 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeViewModel;
 import gr.grnet.pithos.web.client.rest.DeleteRequest;
 import gr.grnet.pithos.web.client.rest.GetRequest;
+import gr.grnet.pithos.web.client.rest.HeadRequest;
 import gr.grnet.pithos.web.client.rest.PutRequest;
 import gr.grnet.pithos.web.client.rest.RestException;
-import gr.grnet.pithos.web.client.tagtree.Tag;
-import gr.grnet.pithos.web.client.tagtree.TagTreeView;
-import gr.grnet.pithos.web.client.tagtree.TagTreeViewModel;
 
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -61,7 +62,9 @@ import java.util.Set;
 
 import com.google.gwt.core.client.EntryPoint;
 import com.google.gwt.core.client.GWT;
+import com.google.gwt.core.client.JsArrayString;
 import com.google.gwt.core.client.Scheduler;
+import com.google.gwt.core.client.Scheduler.RepeatingCommand;
 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
 import com.google.gwt.event.dom.client.ClickEvent;
 import com.google.gwt.event.dom.client.ClickHandler;
@@ -72,12 +75,17 @@ import com.google.gwt.http.client.RequestBuilder;
 import com.google.gwt.http.client.RequestCallback;
 import com.google.gwt.http.client.RequestException;
 import com.google.gwt.http.client.Response;
+import com.google.gwt.http.client.URL;
+import com.google.gwt.i18n.client.Dictionary;
 import com.google.gwt.json.client.JSONArray;
 import com.google.gwt.json.client.JSONObject;
 import com.google.gwt.json.client.JSONParser;
 import com.google.gwt.json.client.JSONString;
 import com.google.gwt.json.client.JSONValue;
+import com.google.gwt.resources.client.ClientBundle;
+import com.google.gwt.resources.client.CssResource;
 import com.google.gwt.resources.client.ImageResource;
+import com.google.gwt.resources.client.ImageResource.ImageOptions;
 import com.google.gwt.user.client.Command;
 import com.google.gwt.user.client.Cookies;
 import com.google.gwt.user.client.Event;
@@ -85,13 +93,14 @@ import com.google.gwt.user.client.History;
 import com.google.gwt.user.client.Window;
 import com.google.gwt.user.client.ui.AbstractImagePrototype;
 import com.google.gwt.user.client.ui.Button;
+import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.user.client.ui.FlowPanel;
 import com.google.gwt.user.client.ui.HTML;
 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
 import com.google.gwt.user.client.ui.HasVerticalAlignment;
 import com.google.gwt.user.client.ui.HorizontalPanel;
 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
-import com.google.gwt.user.client.ui.Image;
-import com.google.gwt.user.client.ui.PushButton;
+import com.google.gwt.user.client.ui.PopupPanel;
 import com.google.gwt.user.client.ui.RootPanel;
 import com.google.gwt.user.client.ui.VerticalPanel;
 import com.google.gwt.view.client.SelectionChangeEvent;
@@ -106,12 +115,43 @@ public class Pithos implements EntryPoint, ResizeHandler {
        public static final String HOME_CONTAINER = "pithos";
 
        public static final String TRASH_CONTAINER = "trash";
+
+       public static final Configuration config = GWT.create(Configuration.class);
+       
+       public interface Style extends CssResource {
+               String commandAnchor();
+               
+               String statistics();
+               
+               @ClassName("gwt-HTML")
+               String html();
+               
+               String uploadAlert();
+
+               String uploadAlertLink();
+
+               String uploadAlertProgress();
+               
+               String uploadAlertPercent();
+               
+               String uploadAlertClose();
+       }
+       
+       public interface Resources extends ClientBundle {
+               @Source("Pithos.css")
+               Style pithosCss();
+               
+               @Source("gr/grnet/pithos/resources/close-popup.png")
+               ImageResource closePopup();
+       }
+
+       public static Resources resources = GWT.create(Resources.class);
        
        /**
         * Instantiate an application-level image bundle. This object will provide
         * programmatic access to all the images needed by widgets.
         */
-       private static Images images = (Images) GWT.create(Images.class);
+       static Images images = (Images) GWT.create(Images.class);
 
     public String getUsername() {
         return username;
@@ -125,34 +165,28 @@ public class Pithos implements EntryPoint, ResizeHandler {
         return account;
     }
 
-    public void updateFolder(Folder f, boolean showfiles) {
-        folderTreeView.updateFolder(f, showfiles);
+    public void updateFolder(Folder f, boolean showfiles, Command callback, final boolean openParent) {
+        folderTreeView.updateFolder(f, showfiles, callback, openParent);
     }
 
-    public void updateSharedFolder(Folder f, boolean showfiles) {
-       mysharedTreeView.updateFolder(f, showfiles);
+    public void updateGroupNode(Group group) {
+        groupTreeView.updateGroupNode(group);
+    }
+
+    public void updateMySharedRoot() {
+       mysharedTreeView.updateRoot();
     }
     
-    public void updateOtherSharedFolder(Folder f, boolean showfiles) {
-       otherSharedTreeView.updateFolder(f, showfiles);
+    public void updateSharedFolder(Folder f, boolean showfiles, Command callback) {
+       mysharedTreeView.updateFolder(f, showfiles, callback);
     }
-
-    public void updateTag(Tag t) {
-        tagTreeView.updateTag(t);
+    
+    public void updateSharedFolder(Folder f, boolean showfiles) {
+       updateSharedFolder(f, showfiles, null);
     }
 
-    public void updateTags() {
-        tagTreeViewModel.initialize(getAllTags());
-    }
-
-    public List<Tag> getAllTags() {
-        List<Tag> tagList = new ArrayList<Tag>();
-        for (Folder f : account.getContainers()) {
-            for (String t : f.getTags()) {
-                tagList.add(new Tag(t));
-            }
-        }
-        return tagList;
+    public void updateOtherSharedFolder(Folder f, boolean showfiles, Command callback) {
+       otherSharedTreeView.updateFolder(f, showfiles, callback);
     }
 
     public MysharedTreeView getMySharedTreeView() {
@@ -163,18 +197,18 @@ public class Pithos implements EntryPoint, ResizeHandler {
         * An aggregate image bundle that pulls together all the images for this
         * application into a single bundle.
         */
-       public interface Images extends TopPanel.Images, FileList.Images {
+       public interface Images extends TopPanel.Images, FileList.Images, ToolsMenu.Images {
 
                @Source("gr/grnet/pithos/resources/document.png")
                ImageResource folders();
 
-               @Source("gr/grnet/pithos/resources/edit_group_22.png")
-               ImageResource groups();
-
-               @Source("gr/grnet/pithos/resources/search.png")
-               ImageResource search();
+               @Source("gr/grnet/pithos/resources/advancedsettings.png")
+               @ImageOptions(width=32, height=32)
+               ImageResource tools();
        }
 
+       private Throwable error;
+       
        /**
         * The Application Clipboard implementation;
         */
@@ -188,7 +222,7 @@ public class Pithos implements EntryPoint, ResizeHandler {
        /**
         * The panel that contains the various system messages.
         */
-       private MessagePanel messagePanel = new MessagePanel(Pithos.images);
+       private MessagePanel messagePanel = new MessagePanel(this, Pithos.images);
 
        /**
         * The bottom panel that contains the status bar.
@@ -217,12 +251,6 @@ public class Pithos implements EntryPoint, ResizeHandler {
         */
        private Object currentSelection;
 
-
-       /**
-        * The WebDAV password of the current user
-        */
-       private String webDAVPassword;
-
        public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 
     private String username = null;
@@ -232,26 +260,41 @@ public class Pithos implements EntryPoint, ResizeHandler {
      */
     private String token;
 
-    protected SingleSelectionModel<Folder> folderTreeSelectionModel;
-    protected FolderTreeViewModel folderTreeViewModel;
-    protected FolderTreeView folderTreeView;
+    VerticalPanel trees;
+    
+    SingleSelectionModel<Folder> folderTreeSelectionModel;
+    FolderTreeViewModel folderTreeViewModel;
+    FolderTreeView folderTreeView;
 
-    protected SingleSelectionModel<Folder> mysharedTreeSelectionModel;
-    private MysharedTreeViewModel mysharedTreeViewModel;
-    private MysharedTreeView mysharedTreeView;
+    SingleSelectionModel<Folder> mysharedTreeSelectionModel;
+    MysharedTreeViewModel mysharedTreeViewModel;
+    MysharedTreeView mysharedTreeView = null;;
 
     protected SingleSelectionModel<Folder> otherSharedTreeSelectionModel;
-    private OtherSharedTreeViewModel otherSharedTreeViewModel;
-    private OtherSharedTreeView otherSharedTreeView;
+    OtherSharedTreeViewModel otherSharedTreeViewModel;
+    OtherSharedTreeView otherSharedTreeView = null;
 
-    protected SingleSelectionModel<Tag> tagTreeSelectionModel;
-    private TagTreeViewModel tagTreeViewModel;
-    private TagTreeView tagTreeView;
+    GroupTreeViewModel groupTreeViewModel;
+    GroupTreeView groupTreeView;
 
+    TreeView selectedTree;
     protected AccountResource account;
+    
+    Folder trash;
+    
+    List<Composite> treeViews = new ArrayList<Composite>();
+
+    @SuppressWarnings("rawtypes") List<SingleSelectionModel> selectionModels = new ArrayList<SingleSelectionModel>();
+    
+    public Button upload;
+    
+    private HTML numOfFiles;
+    
+    private Toolbar toolbar;
+    
+    private FileUploadDialog fileUploadDialog = new FileUploadDialog(this);
 
-    @SuppressWarnings("rawtypes")
-       private List<SingleSelectionModel> selectionModels = new ArrayList<SingleSelectionModel>();
+       UploadAlert uploadAlert;
 
        @Override
        public void onModuleLoad() {
@@ -260,137 +303,126 @@ public class Pithos implements EntryPoint, ResizeHandler {
        }
 
     private void initialize() {
-        VerticalPanel outer = new VerticalPanel();
-        outer.setWidth("100%");
+       resources.pithosCss().ensureInjected();
+       boolean bareContent = Window.Location.getParameter("noframe") != null;
+       String contentWidth = bareContent ? "100%" : "75%";
 
-        topPanel = new TopPanel(this, Pithos.images);
-        topPanel.setWidth("100%");
-        outer.add(topPanel);
-
-        messagePanel.setWidth("100%");
+       VerticalPanel outer = new VerticalPanel();
+        outer.setWidth("100%");
+       if (!bareContent) {
+               outer.addStyleName("pithos-outer");
+       }
+
+        if (!bareContent) {
+               topPanel = new TopPanel(this, Pithos.images);
+               topPanel.setWidth("100%");
+               outer.add(topPanel);
+               outer.setCellHorizontalAlignment(topPanel, HasHorizontalAlignment.ALIGN_CENTER);
+        }
+        
         messagePanel.setVisible(false);
         outer.add(messagePanel);
         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
-
-
-        // Inner contains the various lists.
-        inner.sinkEvents(Event.ONCONTEXTMENU);
-        inner.setWidth("100%");
-
-        HorizontalPanel rightside = new HorizontalPanel();
-        rightside.addStyleName("pithos-rightSide");
-        rightside.setSpacing(5);
-
-        PushButton parentButton = new PushButton(new Image(images.asc()), new ClickHandler() {
+        outer.setCellVerticalAlignment(messagePanel, HasVerticalAlignment.ALIGN_MIDDLE);
+
+        HorizontalPanel header = new HorizontalPanel();
+        header.addStyleName("pithos-header");
+        header.setWidth(contentWidth);
+        if (bareContent)
+               header.addStyleName("pithos-header-noframe");
+        upload = new Button("Upload", new ClickHandler() {
             @Override
-            public void onClick(@SuppressWarnings("unused") ClickEvent event) {
-
+            public void onClick(ClickEvent event) {
+               if (getSelection() != null)
+                       new UploadFileCommand(Pithos.this, null, getSelection()).execute();
             }
         });
-        parentButton.addStyleName("pithos-parentButton");
-        rightside.add(parentButton);
-
-        HTML folderStatistics = new HTML("5 Files (size: 1.1GB)");
+        upload.addStyleName("pithos-uploadButton");
+        header.add(upload);
+        header.setCellHorizontalAlignment(upload, HasHorizontalAlignment.ALIGN_LEFT);
+        header.setCellVerticalAlignment(upload, HasVerticalAlignment.ALIGN_MIDDLE);
+
+        toolbar = new Toolbar(this);
+        header.add(toolbar);
+        header.setCellHorizontalAlignment(toolbar, HasHorizontalAlignment.ALIGN_CENTER);
+        header.setCellVerticalAlignment(toolbar, HasVerticalAlignment.ALIGN_MIDDLE);
+        
+        HorizontalPanel folderStatistics = new HorizontalPanel();
         folderStatistics.addStyleName("pithos-folderStatistics");
-        rightside.add(folderStatistics);
-        inner.add(rightside);
-        inner.setCellHorizontalAlignment(rightside, HasHorizontalAlignment.ALIGN_RIGHT);
-        inner.setCellVerticalAlignment(rightside, HasVerticalAlignment.ALIGN_MIDDLE);
-        inner.setCellHeight(rightside, "60px");
+        numOfFiles = new HTML();
+        folderStatistics.add(numOfFiles);
+        folderStatistics.setCellVerticalAlignment(numOfFiles, HasVerticalAlignment.ALIGN_MIDDLE);
+        HTML numOfFilesLabel = new HTML("&nbsp;Files");
+        folderStatistics.add(numOfFilesLabel);
+        folderStatistics.setCellVerticalAlignment(numOfFilesLabel, HasVerticalAlignment.ALIGN_MIDDLE);
+        header.add(folderStatistics);
+        header.setCellHorizontalAlignment(folderStatistics, HasHorizontalAlignment.ALIGN_RIGHT);
+        header.setCellVerticalAlignment(folderStatistics, HasVerticalAlignment.ALIGN_MIDDLE);
+        header.setCellWidth(folderStatistics, "40px");
+        outer.add(header);
+        outer.setCellHorizontalAlignment(header, HasHorizontalAlignment.ALIGN_CENTER);
+        // Inner contains the various lists
+        inner.sinkEvents(Event.ONCONTEXTMENU);
+        inner.setWidth("100%");
 
         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
             @Override
-            public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
+            public void onSelectionChange(SelectionChangeEvent event) {
                 if (folderTreeSelectionModel.getSelectedObject() != null) {
-                    deselectOthers(folderTreeSelectionModel);
+                    deselectOthers(folderTreeView, folderTreeSelectionModel);
+                    applyPermissions(folderTreeSelectionModel.getSelectedObject());
                     Folder f = folderTreeSelectionModel.getSelectedObject();
-                    updateFolder(f, true);
+                       updateFolder(f, true, new Command() {
+                               
+                               @Override
+                               public void execute() {
+                                       updateStatistics();
+                               }
+                       }, true);
+                       showRelevantToolbarButtons();
                 }
+                               else {
+                                       if (getSelectedTree().equals(folderTreeView))
+                                               setSelectedTree(null);
+                                       if (getSelectedTree() == null)
+                                               showRelevantToolbarButtons();
+                               }
             }
         });
         selectionModels.add(folderTreeSelectionModel);
 
         folderTreeViewModel = new FolderTreeViewModel(this, folderTreeSelectionModel);
         folderTreeView = new FolderTreeView(folderTreeViewModel);
-
-        fileList = new FileList(this, images, folderTreeView);
+        treeViews.add(folderTreeView);
+        
+        fileList = new FileList(this, images);
         inner.add(fileList);
 
-        mysharedTreeSelectionModel = new SingleSelectionModel<Folder>();
-        mysharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
-            @Override
-            public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
-                if (mysharedTreeSelectionModel.getSelectedObject() != null) {
-                    deselectOthers(mysharedTreeSelectionModel);
-                    updateSharedFolder(mysharedTreeSelectionModel.getSelectedObject(), true);
-                }
-            }
-        });
-        selectionModels.add(mysharedTreeSelectionModel);
-        mysharedTreeViewModel = new MysharedTreeViewModel(this, mysharedTreeSelectionModel);
-        mysharedTreeView = new MysharedTreeView(mysharedTreeViewModel);
-
-        otherSharedTreeSelectionModel = new SingleSelectionModel<Folder>();
-        otherSharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
-            @Override
-            public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
-                if (otherSharedTreeSelectionModel.getSelectedObject() != null) {
-                    deselectOthers(otherSharedTreeSelectionModel);
-                    updateOtherSharedFolder(otherSharedTreeSelectionModel.getSelectedObject(), true);
-                }
-            }
-        });
-        selectionModels.add(otherSharedTreeSelectionModel);
-        otherSharedTreeViewModel = new OtherSharedTreeViewModel(this, otherSharedTreeSelectionModel);
-        otherSharedTreeView = new OtherSharedTreeView(otherSharedTreeViewModel);
-
-        tagTreeSelectionModel = new SingleSelectionModel<Tag>();
-        tagTreeSelectionModel.addSelectionChangeHandler(new Handler() {
-            @Override
-            public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
-                if (tagTreeSelectionModel.getSelectedObject() != null) {
-                    deselectOthers(tagTreeSelectionModel);
-                    Tag t = tagTreeSelectionModel.getSelectedObject();
-                    updateTag(t);
-                }
-            }
-        });
-        selectionModels.add(tagTreeSelectionModel);
-        tagTreeViewModel = new TagTreeViewModel(this, tagTreeSelectionModel);
-        tagTreeView = new TagTreeView(tagTreeViewModel);
-
-        VerticalPanel trees = new VerticalPanel();
-
-        Button upload = new Button("Upload File", new ClickHandler() {
-            @Override
-            public void onClick(@SuppressWarnings("unused") ClickEvent event) {
-                new UploadFileCommand(Pithos.this, null, folderTreeView.getSelection()).execute();
-            }
-        });
-        upload.addStyleName("pithos-uploadButton");
-        trees.add(upload);
+        trees = new VerticalPanel();
+        trees.setWidth("100%");
         
-        HorizontalPanel treeHeader = new HorizontalPanel();
-        treeHeader.addStyleName("pithos-treeHeader");
-        treeHeader.add(new HTML("Total Files: 6 | Used: 2.1 of 50 GB (4.2%)"));
-        trees.add(treeHeader);
-
-        trees.add(folderTreeView);
-        trees.add(mysharedTreeView);
-        trees.add(otherSharedTreeView);
-//        trees.add(tagTreeView);
         // Add the left and right panels to the split panel.
         splitPanel.setLeftWidget(trees);
-        splitPanel.setRightWidget(inner);
-        splitPanel.setSplitPosition("25%");
+        FlowPanel right = new FlowPanel();
+        right.getElement().setId("rightPanel");
+        right.add(inner);
+        splitPanel.setRightWidget(right);
+        splitPanel.setSplitPosition("219px");
         splitPanel.setSize("100%", "100%");
         splitPanel.addStyleName("pithos-splitPanel");
+        splitPanel.setWidth(contentWidth);
         outer.add(splitPanel);
+        outer.setCellHorizontalAlignment(splitPanel, HasHorizontalAlignment.ALIGN_CENTER);
 
-        statusPanel = new StatusPanel();
-        outer.add(statusPanel);
-
+        if (!bareContent) {
+               statusPanel = new StatusPanel();
+               statusPanel.setWidth("100%");
+               outer.add(statusPanel);
+               outer.setCellHorizontalAlignment(statusPanel, HasHorizontalAlignment.ALIGN_CENTER);
+        }
+        else
+               splitPanel.addStyleName("pithos-splitPanel-noframe");
 
         // Hook the window resize event, so that we can adjust the UI.
         Window.addResizeHandler(this);
@@ -403,90 +435,146 @@ public class Pithos implements EntryPoint, ResizeHandler {
         // Call the window resized handler to get the initial sizes setup. Doing
         // this in a deferred command causes it to occur after all widgets'
         // sizes have been computed by the browser.
-        Scheduler.get().scheduleDeferred(new ScheduledCommand() {
-
-            @Override
-            public void execute() {
+        Scheduler.get().scheduleIncremental(new RepeatingCommand() {
+                       
+                       @Override
+                       public boolean execute() {
+                               if (!isCloudbarReady())
+                                       return true;
                 onWindowResized(Window.getClientHeight());
-            }
-        });
-
+                               return false;
+                       }
+               });
+        
         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
             @Override
             public void execute() {
-                fetchAccount();
+                fetchAccount(new Command() {
+                                       
+                                       @Override
+                                       public void execute() {
+                               if (!account.hasHomeContainer())
+                                   createHomeContainer(account, this);
+                               else if (!account.hasTrashContainer())
+                                       createTrashContainer(this);
+                               else {
+                                       for (Folder f : account.getContainers())
+                                               if (f.getName().equals(Pithos.TRASH_CONTAINER)) {
+                                                       trash = f;
+                                                       break;
+                                               }
+                                   trees.add(folderTreeView);
+                                   folderTreeViewModel.initialize(account, new Command() {
+                                                               
+                                                               @Override
+                                                               public void execute() {
+                                                   createMySharedTree();
+                                                               }
+                                                       });
+
+                                   HorizontalPanel separator = new HorizontalPanel();
+                                   separator.addStyleName("pithos-statisticsSeparator");
+                                   separator.add(new HTML(""));
+                                   trees.add(separator);
+
+                                   groupTreeViewModel = new GroupTreeViewModel(Pithos.this);
+                                   groupTreeView = new GroupTreeView(groupTreeViewModel);
+                                   treeViews.add(groupTreeView);
+                                   trees.add(groupTreeView);
+                                   folderTreeView.showStatistics(account);
+                               }
+                                       }
+                               });
             }
         });
+        
+        Scheduler.get().scheduleFixedDelay(new RepeatingCommand() {
+                       
+                       @Override
+                       public boolean execute() {
+                               Folder f = getSelection();
+                               if (f != null) {
+                                       if (getSelectedTree().equals(folderTreeView))
+                                               updateFolder(f, true, null, false);
+                                       else if (getSelectedTree().equals(mysharedTreeView))
+                                               updateSharedFolder(f, true);
+                               }
+                               return true;
+                       }
+               }, 3000);
     }
 
-    @SuppressWarnings({ "rawtypes", "unchecked" })
-       public void deselectOthers(SingleSelectionModel model) {
+    public void applyPermissions(Folder f) {
+       if (f != null) {
+               if (f.isInTrash()) {
+                       upload.setEnabled(false);
+                       disableUploadArea();
+               }
+               else {
+                       Boolean[] perms = f.getPermissions().get(username);
+                       if (f.getOwner().equals(username) || (perms != null && perms[1] != null && perms[1])) {
+                               upload.setEnabled(true);
+                               enableUploadArea();
+                       }
+                       else {
+                               upload.setEnabled(false);
+                               disableUploadArea();
+                       }
+               }
+       }
+       else {
+               upload.setEnabled(false);
+               disableUploadArea();
+       }
+       }
+
+       @SuppressWarnings({ "rawtypes", "unchecked" })
+       public void deselectOthers(TreeView _selectedTree, SingleSelectionModel model) {
+       selectedTree = _selectedTree;
+       
         for (SingleSelectionModel s : selectionModels)
-            if (!s.equals(model))
+            if (!s.equals(model) && s.getSelectedObject() != null)
                 s.setSelected(s.getSelectedObject(), false);
     }
 
-    public void showFiles(Folder f) {
+    public void showFiles(final Folder f) {
         Set<File> files = f.getFiles();
         showFiles(files);
     }
 
     public void showFiles(Set<File> files) {
-        //Iterator<File> iter = files.iterator();
-        //fetchFile(iter, files);
         fileList.setFiles(new ArrayList<File>(files));
     }
 
-    protected void fetchFile(final Iterator<File> iter, final Set<File> files) {
-        if (iter.hasNext()) {
-            File file = iter.next();
-            String path = file.getUri() + "?format=json";
-            GetRequest<File> getFile = new GetRequest<File>(File.class, getApiPath(), username, path, file) {
-                @Override
-                public void onSuccess(@SuppressWarnings("unused") File _result) {
-                    fetchFile(iter, files);
-                }
-
-                @Override
-                public void onError(Throwable t) {
-                    GWT.log("Error getting file", t);
-                    if (t instanceof RestException)
-                        displayError("Error getting file: " + ((RestException) t).getHttpStatusText());
-                    else
-                        displayError("System error fetching file: " + t.getMessage());
-                }
-            };
-            getFile.setHeader("X-Auth-Token", "0000");
-            Scheduler.get().scheduleDeferred(getFile);
-        }
-        else
-            fileList.setFiles(new ArrayList<File>(files));
-    }
-
     /**
         * Parse and store the user credentials to the appropriate fields.
         */
        private boolean parseUserCredentials() {
-        username = Window.Location.getParameter("user");
-        token = Window.Location.getParameter("token");
         Configuration conf = (Configuration) GWT.create(Configuration.class);
-        if (username == null || username.length() == 0 || token == null || token.length() == 0) {
-            String cookie = conf.authCookie();
-            String auth = Cookies.getCookie(cookie);
-            if (auth == null) {
-                authenticateUser();
-                return false;
-            }
-                       String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
-                       if (authSplit.length != 2) {
-                           authenticateUser();
-                           return false;
-                       }
-                       username = authSplit[0];
-                       token = authSplit[1];
-                       return true;
+               Dictionary otherProperties = Dictionary.getDictionary("otherProperties");
+        String cookie = otherProperties.get("authCookie");
+        String auth = Cookies.getCookie(cookie);
+        if (auth == null) {
+            authenticateUser();
+            return false;
         }
-               Cookies.setCookie(conf.authCookie(), username + conf.cookieSeparator() + token);
+        if (auth.startsWith("\""))
+               auth = auth.substring(1);
+        if (auth.endsWith("\""))
+               auth = auth.substring(0, auth.length() - 1);
+               String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
+               if (authSplit.length != 2) {
+                   authenticateUser();
+                   return false;
+               }
+               username = authSplit[0];
+               token = authSplit[1];
+
+        String gotoUrl = Window.Location.getParameter("goto");
+               if (gotoUrl != null && gotoUrl.length() > 0) {
+                       Window.Location.assign(gotoUrl);
+                       return false;
+               }
                return true;
     }
 
@@ -494,79 +582,119 @@ public class Pithos implements EntryPoint, ResizeHandler {
         * Redirect the user to the login page for authentication.
         */
        protected void authenticateUser() {
-               Configuration conf = (Configuration) GWT.create(Configuration.class);
-        Window.Location.assign(Window.Location.getHost() + conf.loginUrl() + "?next=" + Window.Location.getHref());
+               Dictionary otherProperties = Dictionary.getDictionary("otherProperties");
+        Window.Location.assign(otherProperties.get("loginUrl") + Window.Location.getHref());
        }
 
-       protected void fetchAccount() {
+       public void fetchAccount(final Command callback) {
         String path = "?format=json";
 
         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, getApiPath(), username, path) {
             @Override
             public void onSuccess(AccountResource _result) {
                 account = _result;
-                if (!account.hasHomeContainer())
-                    createHomeContainer(account);
-                else if (!account.hasTrashContainer())
-                       createTrashContainer();
-                else {
-                    folderTreeViewModel.initialize(account);
-                }
+                if (callback != null)
+                       callback.execute();
             }
 
             @Override
             public void onError(Throwable t) {
                 GWT.log("Error getting account", t);
+                               setError(t);
                 if (t instanceof RestException)
                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
                 else
                     displayError("System error fetching user data: " + t.getMessage());
             }
+
+                       @Override
+                       protected void onUnauthorized(Response response) {
+                               sessionExpired();
+                       }
         };
         getAccount.setHeader("X-Auth-Token", token);
         Scheduler.get().scheduleDeferred(getAccount);
     }
 
-    protected void createHomeContainer(final AccountResource account) {
+    public void updateStatistics() {
+       HeadRequest<AccountResource> headAccount = new HeadRequest<AccountResource>(AccountResource.class, getApiPath(), username, "", account) {
+
+                       @Override
+                       public void onSuccess(AccountResource _result) {
+                               folderTreeView.showStatistics(account);
+                       }
+
+                       @Override
+                       public void onError(Throwable t) {
+                GWT.log("Error getting account", t);
+                               setError(t);
+                if (t instanceof RestException)
+                    displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
+                else
+                    displayError("System error fetching user data: " + t.getMessage());
+                       }
+
+                       @Override
+                       protected void onUnauthorized(Response response) {
+                               sessionExpired();
+                       }
+               };
+               headAccount.setHeader("X-Auth-Token", token);
+               Scheduler.get().scheduleDeferred(headAccount);
+       }
+
+       protected void createHomeContainer(final AccountResource _account, final Command callback) {
         String path = "/" + Pithos.HOME_CONTAINER;
         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
             @Override
-            public void onSuccess(@SuppressWarnings("unused") Resource result) {
-               if (!account.hasTrashContainer())
-                       createTrashContainer();
+            public void onSuccess(Resource result) {
+               if (!_account.hasTrashContainer())
+                       createTrashContainer(callback);
                else
-                       fetchAccount();
+                       fetchAccount(callback);
             }
 
             @Override
             public void onError(Throwable t) {
                 GWT.log("Error creating pithos", t);
+                               setError(t);
                 if (t instanceof RestException)
                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
                 else
                     displayError("System error Error creating pithos: " + t.getMessage());
             }
+
+                       @Override
+                       protected void onUnauthorized(Response response) {
+                               sessionExpired();
+                       }
         };
         createPithos.setHeader("X-Auth-Token", getToken());
         Scheduler.get().scheduleDeferred(createPithos);
     }
 
-    protected void createTrashContainer() {
+    protected void createTrashContainer(final Command callback) {
         String path = "/" + Pithos.TRASH_CONTAINER;
         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
             @Override
-            public void onSuccess(@SuppressWarnings("unused") Resource result) {
-                       fetchAccount();
+            public void onSuccess(Resource result) {
+                       fetchAccount(callback);
             }
 
             @Override
             public void onError(Throwable t) {
                 GWT.log("Error creating pithos", t);
+                               setError(t);
                 if (t instanceof RestException)
                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
                 else
                     displayError("System error Error creating pithos: " + t.getMessage());
             }
+
+                       @Override
+                       protected void onUnauthorized(Response response) {
+                               sessionExpired();
+                       }
         };
         createPithos.setHeader("X-Auth-Token", getToken());
         Scheduler.get().scheduleDeferred(createPithos);
@@ -590,13 +718,19 @@ public class Pithos implements EntryPoint, ResizeHandler {
 
        protected void onWindowResized(int height) {
                // Adjust the split panel to take up the available room in the window.
-               int newHeight = height - splitPanel.getAbsoluteTop() - 60;
+               int newHeight = height - splitPanel.getAbsoluteTop() - 153;
                if (newHeight < 1)
                        newHeight = 1;
                splitPanel.setHeight("" + newHeight);
                inner.setHeight("" + newHeight);
        }
-
+       
+       native boolean isCloudbarReady()/*-{
+               if ($wnd.$("div.servicesbar") && $wnd.$("div.servicesbar").height() > 0)
+                       return true;
+               return false;
+       }-*/;
+       
        @Override
        public void onResize(ResizeEvent event) {
                int height = event.getHeight();
@@ -665,10 +799,6 @@ public class Pithos implements EntryPoint, ResizeHandler {
                return token;
        }
 
-       public String getWebDAVPassword() {
-               return webDAVPassword;
-       }
-
        public static native void preventIESelection() /*-{
                $doc.body.onselectstart = function () { return false; };
        }-*/;
@@ -700,27 +830,27 @@ public class Pithos implements EntryPoint, ResizeHandler {
                History.newItem(key);
        }
 
-    public void deleteFolder(final Folder folder) {
-        String path = getApiPath() + getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + folder.getPrefix();
+    public void deleteFolder(final Folder folder, final Command callback) {
+        String path = getApiPath() + folder.getOwner() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(folder.getPrefix()) + "&t=" + System.currentTimeMillis();
         RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
-        builder.setHeader("If-Modified-Since", "0");
         builder.setHeader("X-Auth-Token", getToken());
         try {
             builder.sendRequest("", new RequestCallback() {
                 @Override
-                public void onResponseReceived(@SuppressWarnings("unused") Request request, Response response) {
+                public void onResponseReceived(Request request, Response response) {
                     if (response.getStatusCode() == Response.SC_OK) {
                         JSONValue json = JSONParser.parseStrict(response.getText());
                         JSONArray array = json.isArray();
                         int i = 0;
                         if (array != null) {
-                            deleteObject(folder, i, array);
+                            deleteObject(folder, i, array, callback);
                         }
                     }
                 }
 
                 @Override
-                public void onError(@SuppressWarnings("unused") Request request, Throwable exception) {
+                public void onError(Request request, Throwable exception) {
+                       setError(exception);
                     displayError("System error unable to delete folder: " + exception.getMessage());
                 }
             });
@@ -729,23 +859,29 @@ public class Pithos implements EntryPoint, ResizeHandler {
         }
     }
 
-    public void deleteObject(final Folder folder, final int i, final JSONArray array) {
+    void deleteObject(final Folder folder, final int i, final JSONArray array, final Command callback) {
         if (i < array.size()) {
             JSONObject o = array.get(i).isObject();
             if (o != null && !o.containsKey("subdir")) {
                 JSONString name = o.get("name").isString();
                 String path = "/" + folder.getContainer() + "/" + name.stringValue();
-                DeleteRequest delete = new DeleteRequest(getApiPath(), getUsername(), path) {
+                DeleteRequest delete = new DeleteRequest(getApiPath(), folder.getOwner(), URL.encode(path)) {
                     @Override
-                    public void onSuccess(@SuppressWarnings("unused") Resource result) {
-                        deleteObject(folder, i + 1, array);
+                    public void onSuccess(Resource result) {
+                        deleteObject(folder, i + 1, array, callback);
                     }
 
                     @Override
                     public void onError(Throwable t) {
                         GWT.log("", t);
+                                               setError(t);
                         displayError("System error unable to delete folder: " + t.getMessage());
                     }
+
+                               @Override
+                               protected void onUnauthorized(Response response) {
+                                       sessionExpired();
+                               }
                 };
                 delete.setHeader("X-Auth-Token", getToken());
                 Scheduler.get().scheduleDeferred(delete);
@@ -753,14 +889,13 @@ public class Pithos implements EntryPoint, ResizeHandler {
             else if (o != null) {
                 String subdir = o.get("subdir").isString().stringValue();
                 subdir = subdir.substring(0, subdir.length() - 1);
-                String path = getApiPath() + getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + subdir;
+                String path = getApiPath() + getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(subdir) + "&t=" + System.currentTimeMillis();
                 RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
-                builder.setHeader("If-Modified-Since", "0");
                 builder.setHeader("X-Auth-Token", getToken());
                 try {
                     builder.sendRequest("", new RequestCallback() {
                         @Override
-                        public void onResponseReceived(@SuppressWarnings("unused") Request request, Response response) {
+                        public void onResponseReceived(Request request, Response response) {
                             if (response.getStatusCode() == Response.SC_OK) {
                                 JSONValue json = JSONParser.parseStrict(response.getText());
                                 JSONArray array2 = json.isArray();
@@ -770,12 +905,13 @@ public class Pithos implements EntryPoint, ResizeHandler {
                                         array.set(l++, array2.get(j));
                                     }
                                 }
-                                deleteObject(folder, i + 1, array);
+                                deleteObject(folder, i + 1, array, callback);
                             }
                         }
 
                         @Override
-                        public void onError(@SuppressWarnings("unused") Request request, Throwable exception) {
+                        public void onError(Request request, Throwable exception) {
+                               setError(exception);
                             displayError("System error unable to delete folder: " + exception.getMessage());
                         }
                     });
@@ -786,15 +922,25 @@ public class Pithos implements EntryPoint, ResizeHandler {
         }
         else {
             String path = folder.getUri();
-            DeleteRequest deleteFolder = new DeleteRequest(getApiPath(), getUsername(), path) {
+            DeleteRequest deleteFolder = new DeleteRequest(getApiPath(), getUsername(), URL.encode(path)) {
                 @Override
-                public void onSuccess(@SuppressWarnings("unused") Resource result) {
-                    updateFolder(folder.getParent(), true);
+                public void onSuccess(Resource result) {
+                    updateFolder(folder.getParent(), true, new Command() {
+                                               
+                                               @Override
+                                               public void execute() {
+                                                       folderTreeSelectionModel.setSelected(folder.getParent(), true);
+                                                       updateStatistics();
+                                                       if (callback != null)
+                                                               callback.execute();
+                                               }
+                                       }, true);
                 }
 
                 @Override
                 public void onError(Throwable t) {
                     GWT.log("", t);
+                                       setError(t);
                     if (t instanceof RestException) {
                        if (((RestException) t).getHttpStatusCode() != Response.SC_NOT_FOUND)
                                displayError("Unable to delete folder: "+((RestException) t).getHttpStatusText());
@@ -804,6 +950,11 @@ public class Pithos implements EntryPoint, ResizeHandler {
                     else
                         displayError("System error unable to delete folder: " + t.getMessage());
                 }
+
+                               @Override
+                               protected void onUnauthorized(Response response) {
+                                       sessionExpired();
+                               }
             };
             deleteFolder.setHeader("X-Auth-Token", getToken());
             Scheduler.get().scheduleDeferred(deleteFolder);
@@ -814,28 +965,37 @@ public class Pithos implements EntryPoint, ResizeHandler {
         return folderTreeView;
     }
 
-    public void copyFiles(final Iterator<File> iter, final String targetUri, final Command callback) {
+    public void copyFiles(final Iterator<File> iter, final String targetUsername, final String targetUri, final Command callback) {
         if (iter.hasNext()) {
             File file = iter.next();
             String path = targetUri + "/" + file.getName();
-            PutRequest copyFile = new PutRequest(getApiPath(), getUsername(), path) {
+            PutRequest copyFile = new PutRequest(getApiPath(), targetUsername, path) {
                 @Override
-                public void onSuccess(@SuppressWarnings("unused") Resource result) {
-                    copyFiles(iter, targetUri, callback);
+                public void onSuccess(Resource result) {
+                    copyFiles(iter, targetUsername, targetUri, callback);
                 }
 
                 @Override
                 public void onError(Throwable t) {
                     GWT.log("", t);
+                                       setError(t);
                     if (t instanceof RestException) {
                         displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
                     }
                     else
                         displayError("System error unable to copy file: "+t.getMessage());
                 }
+
+                               @Override
+                               protected void onUnauthorized(Response response) {
+                                       sessionExpired();
+                               }
             };
             copyFile.setHeader("X-Auth-Token", getToken());
-            copyFile.setHeader("X-Copy-From", file.getUri());
+            copyFile.setHeader("X-Copy-From", URL.encodePathSegment(file.getUri()));
+            if (!file.getOwner().equals(targetUsername))
+               copyFile.setHeader("X-Source-Account", URL.encodePathSegment(file.getOwner()));
+            copyFile.setHeader("Content-Type", file.getContentType());
             Scheduler.get().scheduleDeferred(copyFile);
         }
         else  if (callback != null) {
@@ -843,45 +1003,76 @@ public class Pithos implements EntryPoint, ResizeHandler {
         }
     }
 
-    public void copySubfolders(final Iterator<Folder> iter, final String targetUri, final Command callback) {
+    public void copySubfolders(final Iterator<Folder> iter, final String targetUsername, final String targetUri, final Command callback) {
         if (iter.hasNext()) {
             final Folder f = iter.next();
-            copyFolder(f, targetUri, callback);
+            copyFolder(f, targetUsername, targetUri, new Command() {
+                               
+                               @Override
+                               public void execute() {
+                                       copySubfolders(iter, targetUsername, targetUri, callback);
+                               }
+                       });
         }
         else  if (callback != null) {
             callback.execute();
         }
     }
 
-    public void copyFolder(final Folder f, final String targetUri, final Command callback) {
+    public void copyFolder(final Folder f, final String targetUsername, final String targetUri, final Command callback) {
         String path = targetUri + "/" + f.getName();
-        PutRequest createFolder = new PutRequest(getApiPath(), getUsername(), path) {
+        PutRequest createFolder = new PutRequest(getApiPath(), targetUsername, path) {
             @Override
-            public void onSuccess(@SuppressWarnings("unused") Resource result) {
-                Iterator<File> iter = f.getFiles().iterator();
-                copyFiles(iter, targetUri + "/" + f.getName(), new Command() {
-                    @Override
-                    public void execute() {
-                        Iterator<Folder> iterf = f.getSubfolders().iterator();
-                        copySubfolders(iterf, targetUri + "/" + f.getName(), new Command() {
-                            @Override
-                            public void execute() {
-                                callback.execute();
-                            }
-                        });
-                    }
-                });
+            public void onSuccess(Resource result) {
+               GetRequest<Folder> getFolder = new GetRequest<Folder>(Folder.class, getApiPath(), f.getOwner(), "/" + f.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(f.getPrefix()), f) {
+
+                                       @Override
+                                       public void onSuccess(final Folder _f) {
+                               Iterator<File> iter = _f.getFiles().iterator();
+                               copyFiles(iter, targetUsername, targetUri + "/" + _f.getName(), new Command() {
+                                   @Override
+                                   public void execute() {
+                                       Iterator<Folder> iterf = _f.getSubfolders().iterator();
+                                       copySubfolders(iterf, targetUsername, targetUri + "/" + _f.getName(), callback);
+                                   }
+                               });
+                                       }
+
+                                       @Override
+                                       public void onError(Throwable t) {
+                               GWT.log("", t);
+                                               setError(t);
+                               if (t instanceof RestException) {
+                                   displayError("Unable to get folder: " + ((RestException) t).getHttpStatusText());
+                               }
+                               else
+                                   displayError("System error getting folder: " + t.getMessage());
+                                       }
+
+                                       @Override
+                                       protected void onUnauthorized(Response response) {
+                                               sessionExpired();
+                                       }
+                               };
+                               getFolder.setHeader("X-Auth-Token", getToken());
+                               Scheduler.get().scheduleDeferred(getFolder);
             }
 
             @Override
             public void onError(Throwable t) {
                 GWT.log("", t);
-                if (t instanceof RestException) {
-                    displayError("Unable to create folder:" + ((RestException) t).getHttpStatusText());
+                               setError(t);
+               if (t instanceof RestException) {
+                    displayError("Unable to create folder: " + ((RestException) t).getHttpStatusText());
                 }
                 else
-                    displayError("System error creating folder:" + t.getMessage());
+                    displayError("System error creating folder: " + t.getMessage());
             }
+
+                       @Override
+                       protected void onUnauthorized(Response response) {
+                               sessionExpired();
+                       }
         };
         createFolder.setHeader("X-Auth-Token", getToken());
         createFolder.setHeader("Accept", "*/*");
@@ -897,4 +1088,320 @@ public class Pithos implements EntryPoint, ResizeHandler {
        public OtherSharedTreeView getOtherSharedTreeView() {
                return otherSharedTreeView;
        }
+
+       public void updateTrash(boolean showFiles, Command callback) {
+               updateFolder(trash, showFiles, callback, true);
+       }
+
+       public void updateGroupsNode() {
+               groupTreeView.updateGroupNode(null);
+       }
+
+       public Group addGroup(String groupname) {
+               Group newGroup = new Group(groupname);
+               account.addGroup(newGroup);
+               groupTreeView.updateGroupNode(null);
+               return newGroup;
+       }
+
+       public void removeGroup(Group group) {
+               account.removeGroup(group);
+               updateGroupsNode();
+       }
+
+       public TreeView getSelectedTree() {
+               return selectedTree;
+       }
+       
+       public void setSelectedTree(TreeView selected) {
+               selectedTree = selected;
+       }
+
+       public Folder getSelection() {
+               if (selectedTree != null)
+                       return selectedTree.getSelection();
+               return null;
+       }
+
+       public void showFolderStatistics(int folderFileCount) {
+               numOfFiles.setHTML(String.valueOf(folderFileCount));
+       }
+
+       public GroupTreeView getGroupTreeView() {
+               return groupTreeView;
+       }
+
+       public void sessionExpired() {
+               new SessionExpiredDialog(this).center();
+       }
+
+       public void updateRootFolder(Command callback) {
+               updateFolder(account.getPithos(), false, callback, true);
+       }
+
+       void createMySharedTree() {
+               mysharedTreeSelectionModel = new SingleSelectionModel<Folder>();
+               mysharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
+                   @Override
+                   public void onSelectionChange(SelectionChangeEvent event) {
+                       if (mysharedTreeSelectionModel.getSelectedObject() != null) {
+                           deselectOthers(mysharedTreeView, mysharedTreeSelectionModel);
+                           upload.setEnabled(false);
+                           disableUploadArea();
+                           updateSharedFolder(mysharedTreeSelectionModel.getSelectedObject(), true);
+                                       showRelevantToolbarButtons();
+                       }
+                               else {
+                                       if (getSelectedTree().equals(mysharedTreeView))
+                                               setSelectedTree(null);
+                                       if (getSelectedTree() == null)
+                                               showRelevantToolbarButtons();
+                               }
+                   }
+               });
+               selectionModels.add(mysharedTreeSelectionModel);
+               mysharedTreeViewModel = new MysharedTreeViewModel(Pithos.this, mysharedTreeSelectionModel);
+               mysharedTreeViewModel.initialize(new Command() {
+                       
+                       @Override
+                       public void execute() {
+                           mysharedTreeView = new MysharedTreeView(mysharedTreeViewModel);
+                               trees.insert(mysharedTreeView, 2);
+                               treeViews.add(mysharedTreeView);
+                               createOtherSharedTree();
+                       }
+               });
+       }
+
+       void createOtherSharedTree() {
+               otherSharedTreeSelectionModel = new SingleSelectionModel<Folder>();
+               otherSharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
+                   @Override
+                   public void onSelectionChange(SelectionChangeEvent event) {
+                       if (otherSharedTreeSelectionModel.getSelectedObject() != null) {
+                           deselectOthers(otherSharedTreeView, otherSharedTreeSelectionModel);
+                           applyPermissions(otherSharedTreeSelectionModel.getSelectedObject());
+                           updateOtherSharedFolder(otherSharedTreeSelectionModel.getSelectedObject(), true, null);
+                                       showRelevantToolbarButtons();
+                       }
+                               else {
+                                       if (getSelectedTree().equals(otherSharedTreeView))
+                                               setSelectedTree(null);
+                                       if (getSelectedTree() == null)
+                                               showRelevantToolbarButtons();
+                               }
+                   }
+               });
+               selectionModels.add(otherSharedTreeSelectionModel);
+               otherSharedTreeViewModel = new OtherSharedTreeViewModel(Pithos.this, otherSharedTreeSelectionModel);
+               otherSharedTreeViewModel.initialize(new Command() {
+                       
+                       @Override
+                       public void execute() {
+                           otherSharedTreeView = new OtherSharedTreeView(otherSharedTreeViewModel);
+                               trees.insert(otherSharedTreeView, 1);
+                               treeViews.add(otherSharedTreeView);
+                       }
+               });
+       }
+
+       public native void log1(String message)/*-{
+               $wnd.console.log(message);
+       }-*/;
+
+       public String getErrorData() {
+               if (error != null)
+                       return error.toString();
+               return "";
+       }
+       
+       public void setError(Throwable t) {
+               error = t;
+       }
+       
+       public void showRelevantToolbarButtons() {
+               toolbar.showRelevantButtons();
+       }
+
+       public FileUploadDialog getFileUploadDialog() {
+               if (fileUploadDialog == null)
+                       fileUploadDialog = new FileUploadDialog(this);
+               return fileUploadDialog;
+       }
+
+       public void hideUploadIndicator() {
+               upload.removeStyleName("pithos-uploadButton-loading");
+               upload.setTitle("");
+       }
+       
+       public void showUploadIndicator() {
+               upload.addStyleName("pithos-uploadButton-loading");
+               upload.setTitle("Upload in progress. Click for details.");
+       }
+
+       public void scheduleFolderHeadCommand(final Folder folder, final Command callback) {
+               if (folder == null) {
+                       if (callback != null)
+                               callback.execute();
+               }
+               else {
+                       HeadRequest<Folder> headFolder = new HeadRequest<Folder>(Folder.class, getApiPath(), folder.getOwner(), folder.getUri(), folder) {
+       
+                               @Override
+                               public void onSuccess(Folder _result) {
+                                       if (callback != null)
+                                               callback.execute();
+                               }
+       
+                               @Override
+                               public void onError(Throwable t) {
+                               if (t instanceof RestException) {
+                                       if (((RestException) t).getHttpStatusCode() == Response.SC_NOT_FOUND) {
+                               final String path = folder.getUri();
+                               PutRequest newFolder = new PutRequest(getApiPath(), folder.getOwner(), path) {
+                                   @Override
+                                   public void onSuccess(Resource _result) {
+                                       scheduleFolderHeadCommand(folder, callback);
+                                   }
+       
+                                   @Override
+                                   public void onError(Throwable _t) {
+                                       GWT.log("", _t);
+                                                               setError(_t);
+                                       if(_t instanceof RestException){
+                                           displayError("Unable to create folder: " + ((RestException) _t).getHttpStatusText());
+                                       }
+                                       else
+                                           displayError("System error creating folder: " + _t.getMessage());
+                                   }
+       
+                                               @Override
+                                               protected void onUnauthorized(Response response) {
+                                                       sessionExpired();
+                                               }
+                               };
+                               newFolder.setHeader("X-Auth-Token", getToken());
+                               newFolder.setHeader("Content-Type", "application/folder");
+                               newFolder.setHeader("Accept", "*/*");
+                               newFolder.setHeader("Content-Length", "0");
+                               Scheduler.get().scheduleDeferred(newFolder);
+                                       }
+                                       else
+                                               displayError("Error heading folder: " + ((RestException) t).getHttpStatusText());
+                               }
+                               else
+                                   displayError("System error heading folder: " + t.getMessage());
+       
+                               GWT.log("Error heading folder", t);
+                                       setError(t);
+                               }
+       
+                               @Override
+                               protected void onUnauthorized(Response response) {
+                                       sessionExpired();
+                               }
+                       };
+                       headFolder.setHeader("X-Auth-Token", getToken());
+                       Scheduler.get().scheduleDeferred(headFolder);
+               }
+       }
+
+       public void scheduleFileHeadCommand(File f, final Command callback) {
+               HeadRequest<File> headFile = new HeadRequest<File>(File.class, getApiPath(), f.getOwner(), f.getUri(), f) {
+
+                       @Override
+                       public void onSuccess(File _result) {
+                               if (callback != null)
+                                       callback.execute();
+                       }
+
+                       @Override
+                       public void onError(Throwable t) {
+                       GWT.log("Error heading file", t);
+                               setError(t);
+                       if (t instanceof RestException)
+                           displayError("Error heading file: " + ((RestException) t).getHttpStatusText());
+                       else
+                           displayError("System error heading file: " + t.getMessage());
+                       }
+
+                       @Override
+                       protected void onUnauthorized(Response response) {
+                               sessionExpired();
+                       }
+               };
+               headFile.setHeader("X-Auth-Token", getToken());
+               Scheduler.get().scheduleDeferred(headFile);
+       }
+
+       public boolean isMySharedSelected() {
+               return getSelectedTree().equals(getMySharedTreeView());
+       }
+       
+       private Folder getUploadFolder() {
+               if (folderTreeView.equals(getSelectedTree()) || otherSharedTreeView.equals(getSelectedTree())) {
+                       return getSelection();
+               }
+               return null;
+       }
+       
+       private void updateUploadFolder() {
+               updateUploadFolder(null);
+       }
+       
+       private void updateUploadFolder(final JsArrayString urls) {
+               if (folderTreeView.equals(getSelectedTree()) || otherSharedTreeView.equals(getSelectedTree())) {
+                       Folder f = getSelection();
+                       if (getSelectedTree().equals(getFolderTreeView()))
+                               updateFolder(f, true, new Command() {
+                               
+                                       @Override
+                                       public void execute() {
+                                               updateStatistics();
+                                               if (urls != null)
+                                                       selectUploadedFiles(urls);
+                                       }
+                               }, false);
+                       else
+                               updateOtherSharedFolder(f, true, null);
+               }
+       }
+
+       public native void disableUploadArea() /*-{
+               var uploader = $wnd.$("#uploader").pluploadQueue();
+               var dropElm = $wnd.document.getElementById('rightPanel');
+               $wnd.plupload.removeAllEvents(dropElm, uploader.id);
+       }-*/;
+
+       public native void enableUploadArea() /*-{
+               var uploader = $wnd.$("#uploader").pluploadQueue();
+               var dropElm = $wnd.document.getElementById('rightPanel');
+               $wnd.plupload.removeAllEvents(dropElm, uploader.id);
+               if (uploader.runtime == 'html5') {
+                       uploader.settings.drop_element = 'rightPanel';
+                       uploader.trigger('PostInit');
+               }
+       }-*/;
+       
+       public void showUploadAlert(int numOfFiles) {
+               uploadAlert = new UploadAlert(this, numOfFiles);
+               uploadAlert.setPopupPositionAndShow(new PopupPanel.PositionCallback() {
+                       
+                       @Override
+                       public void setPosition(int offsetWidth, int offsetHeight) {
+                               uploadAlert.setPopupPosition((Window.getClientWidth() - offsetWidth)/2, Window.getClientHeight() - offsetHeight);
+                       }
+               });
+       }
+       
+       public void hideUploadAlert() {
+               uploadAlert.hide();
+       }
+       
+       public void selectUploadedFiles(JsArrayString urls) {
+               List<String> selectedUrls = new ArrayList<String>();
+               for (int i=0; i<urls.length(); i++)
+                       selectedUrls.add(urls.get(i));
+               fileList.selectByUrl(selectedUrls);
+       }
 }