Enhancement on file versioning #7006

git-svn-id: http://svn.d4science-ii.research-infrastructures.eu/gcube/trunk/portlets/user/workspace@142775 82a268e6-3cf1-43bd-a215-b396298e98cf

src/main/java/org/gcube/portlets/user/workspace/client/AppController.java

@@ -30,9 +30,12 @@ import org.gcube.portlets.user.workspace.client.event.DeleteMessageEventHandler;
 import org.gcube.portlets.user.workspace.client.event.DoubleClickElementSelectedEvent;
 import org.gcube.portlets.user.workspace.client.event.DoubleClickElementSelectedEventHandler;
 import org.gcube.portlets.user.workspace.client.event.FileDownloadEvent;
+import org.gcube.portlets.user.workspace.client.event.FileDownloadEvent.DownloadType;
 import org.gcube.portlets.user.workspace.client.event.FileDownloadEventHandler;
 import org.gcube.portlets.user.workspace.client.event.FileUploadEvent;
 import org.gcube.portlets.user.workspace.client.event.FileUploadEventHandler;
+import org.gcube.portlets.user.workspace.client.event.FileVersioningEvent;
+import org.gcube.portlets.user.workspace.client.event.FileVersioningEventHandler;
 import org.gcube.portlets.user.workspace.client.event.FilterScopeEvent;
 import org.gcube.portlets.user.workspace.client.event.GetFolderLinkEvent;
 import org.gcube.portlets.user.workspace.client.event.GetInfoEvent;
@@ -105,6 +108,7 @@ import org.gcube.portlets.user.workspace.client.view.panels.GxtBorderLayoutPanel
 import org.gcube.portlets.user.workspace.client.view.panels.GxtItemsPanel;
 import org.gcube.portlets.user.workspace.client.view.toolbars.GxtBreadcrumbPathPanel;
 import org.gcube.portlets.user.workspace.client.view.trash.WindowTrash;
+import org.gcube.portlets.user.workspace.client.view.versioning.WindowVersioning;
 import org.gcube.portlets.user.workspace.client.view.windows.DialogConfirm;
 import org.gcube.portlets.user.workspace.client.view.windows.DialogGetInfo;
 import org.gcube.portlets.user.workspace.client.view.windows.InfoDisplay;
@@ -116,6 +120,7 @@ import org.gcube.portlets.user.workspace.shared.TrashContent;
 import org.gcube.portlets.user.workspace.shared.TrashOperationContent;
 import org.gcube.portlets.user.workspace.shared.WorkspaceTrashOperation;
 import org.gcube.portlets.user.workspace.shared.WorkspaceUserQuote;
+import org.gcube.portlets.user.workspace.shared.WorkspaceVersioningOperation;
 import org.gcube.portlets.widgets.sessionchecker.client.CheckSession;
 import org.gcube.portlets.widgets.workspaceuploader.client.WorkspaceUploadNotification.WorskpaceUploadNotificationListener;
 import org.gcube.portlets.widgets.workspaceuploader.client.uploader.dragdrop.MultipleDNDUpload;
@@ -190,7 +195,8 @@ public class AppController implements SubscriberInterface {
 				EventsTypeEnum.COPY_EVENT,
 				EventsTypeEnum.TRASH_EVENT,
 				EventsTypeEnum.UPDATE_WORKSPACE_SIZE,
-				EventsTypeEnum.UPDATED_VRE_PERMISSION
+				EventsTypeEnum.UPDATED_VRE_PERMISSION,
+				EventsTypeEnum.FILE_VERSIONING_HISTORY_EVENT
 		});
 		bind();
 	}
@@ -228,6 +234,15 @@ public class AppController implements SubscriberInterface {
 			}
 		});
 
+		eventBus.addHandler(FileVersioningEvent.TYPE, new FileVersioningEventHandler() {
+
+			@Override
+			public void onFileVersioning(FileVersioningEvent fileVersioningEvent) {
+
+				performVersioningOperation(fileVersioningEvent);
+			}
+		});
+
 
 		eventBus.addHandler(UpdateWorkspaceSizeEvent.TYPE, new UpdateWorkspaceSizeEventHandler() {
 
@@ -263,7 +278,7 @@ public class AppController implements SubscriberInterface {
 			@Override
 			public void onTrashEvent(TrashEvent trashEvent) {
 
-				executeTrashOperation(trashEvent.getTrashOperation(), trashEvent.getTargetFileModels());
+				performTrashOperation(trashEvent.getTrashOperation(), trashEvent.getTargetFileModels());
 			}
 		});
 
@@ -446,7 +461,7 @@ public class AppController implements SubscriberInterface {
 			public void onFileDownloadEvent(FileDownloadEvent fileDownloadEvent) {
 
 				if(fileDownloadEvent!=null && fileDownloadEvent.getItemIdentifier()!=null){
-					AppControllerExplorer.getEventBus().fireEvent(new FileDownloadEvent(fileDownloadEvent.getItemIdentifier(), fileDownloadEvent.getItemName(), fileDownloadEvent.getDownloadType(), fileDownloadEvent.isFolder()));
+					AppControllerExplorer.getEventBus().fireEvent(new FileDownloadEvent(fileDownloadEvent.getItemIdentifier(), fileDownloadEvent.getItemName(), fileDownloadEvent.getDownloadType(), fileDownloadEvent.isFolder(), null));
 				}
 
 			}
@@ -1361,7 +1376,7 @@ public class AppController implements SubscriberInterface {
 		Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 			@Override
 			public void execute() {
-				executeTrashOperation(WorkspaceTrashOperation.REFRESH, null);
+				performTrashOperation(WorkspaceTrashOperation.REFRESH, null);
 			}
 		});
 
@@ -1715,7 +1730,7 @@ public class AppController implements SubscriberInterface {
 		for (String itemIdentifier : ids) {
 			deleted = wsPortlet.getGridGroupContainer().deleteItem(itemIdentifier);
 		}
-		executeTrashOperation(WorkspaceTrashOperation.REFRESH, null);
+		performTrashOperation(WorkspaceTrashOperation.REFRESH, null);
 		return deleted;
 	}
 
@@ -2020,13 +2035,101 @@ public class AppController implements SubscriberInterface {
 		}
 	}
 
+
 	/**
-	 * Execute trash operation.
+	 * Perform versioning operation.
+	 *
+	 * @param fileVersioningEvent the file versioning event
+	 */
+	private void performVersioningOperation(FileVersioningEvent fileVersioningEvent){
+
+		final FileModel currentVersion = fileVersioningEvent.getCurrentVersion();
+		final FileModel olderVersion = fileVersioningEvent.getOlderVersion();
+
+		switch (fileVersioningEvent.getVersioningOperation()) {
+			case SHOW:{
+
+				final WindowVersioning wv = new WindowVersioning(currentVersion);
+				appContrExplorer.getRpcWorkspaceService().getVersionHistory(currentVersion.getIdentifier(), new AsyncCallback<List<FileModel>>() {
+
+					@Override
+					public void onFailure(Throwable caught) {
+					}
+
+					@Override
+					public void onSuccess(List<FileModel> result) {
+						wv.updateVersioningContainer(result);
+						wv.updateItemsNumber(result.size());
+					}
+				});
+				wv.show();
+
+				break;
+			}
+			case DOWNLOAD:{
+				AppControllerExplorer.getEventBus().fireEvent(new FileDownloadEvent(olderVersion.getIdentifier(), currentVersion.getName(), DownloadType.DOWNLOAD, false, olderVersion.getIdentifier()));
+				break;
+			}
+
+			case DELETE_PERMANENTLY: {
+
+				final WindowVersioning wv = new WindowVersioning(currentVersion);
+				appContrExplorer.getRpcWorkspaceService().performOperationOnVersionedFile(currentVersion, olderVersion, WorkspaceVersioningOperation.DELETE_PERMANENTLY, new AsyncCallback<List<FileModel>>() {
+
+					@Override
+					public void onFailure(Throwable caught) {
+
+					}
+
+					@Override
+					public void onSuccess(List<FileModel> result) {
+						wv.updateVersioningContainer(result);
+						wv.updateItemsNumber(result.size());
+
+					}
+				});
+				wv.show();
+				break;
+			}
+
+			case REFRESH: {
+				final WindowVersioning wv = fileVersioningEvent.getWinVersioning();
+				appContrExplorer.getRpcWorkspaceService().getVersionHistory(currentVersion.getIdentifier(), new AsyncCallback<List<FileModel>>() {
+
+					@Override
+					public void onFailure(Throwable caught) {
+					}
+
+					@Override
+					public void onSuccess(List<FileModel> result) {
+						wv.updateVersioningContainer(result);
+						wv.updateItemsNumber(result.size());
+					}
+				});
+				wv.show();
+
+			}
+
+			case EMPTY_OLDER_VERSIONS: {
+				break;
+			}
+			case RESTORE:{
+
+				break;
+			}
+		}
+
+
+	}
+
+
+	/**
+	 * Perform trash operation.
 	 *
 	 * @param operation the operation
 	 * @param trashItemIds the trash item ids
 	 */
-	private void executeTrashOperation(final WorkspaceTrashOperation operation, List<FileModel> trashItemIds){
+	private void performTrashOperation(final WorkspaceTrashOperation operation, List<FileModel> trashItemIds){
 
 		GWT.log("Executing trash operation: "+operation);
 
@@ -2122,7 +2225,7 @@ public class AppController implements SubscriberInterface {
 	 */
 	@Override
 	public void trashEvent(WorkspaceTrashOperation trashOperation, List<FileModel> targetFileModels) {
-		executeTrashOperation(trashOperation, targetFileModels);
+		performTrashOperation(trashOperation, targetFileModels);
 
 	}
 
@@ -2193,4 +2296,15 @@ public class AppController implements SubscriberInterface {
 		else
 			t.run();
 	}
+
+
+	/* (non-Javadoc)
+	 * @see org.gcube.portlets.user.workspace.client.interfaces.SubscriberInterface#versioningHistory(org.gcube.portlets.user.workspace.client.model.FileModel)
+	 */
+	@Override
+	public void versioningHistory(FileModel file) {
+
+		eventBus.fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.SHOW, file, null, null));
+
+	}
 }

src/main/java/org/gcube/portlets/user/workspace/client/event/FileVersioningEvent.java

@@ -0,0 +1,162 @@
+/*
+ *
+ */
+package org.gcube.portlets.user.workspace.client.event;
+
+import org.gcube.portlets.user.workspace.client.interfaces.EventsTypeEnum;
+import org.gcube.portlets.user.workspace.client.interfaces.GuiEventInterface;
+import org.gcube.portlets.user.workspace.client.model.FileModel;
+import org.gcube.portlets.user.workspace.client.view.versioning.WindowVersioning;
+import org.gcube.portlets.user.workspace.shared.WorkspaceVersioningOperation;
+
+import com.google.gwt.event.shared.GwtEvent;
+
+
+/**
+ * The Class FileVersioningEvent.
+ *
+ * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
+ * Feb 20, 2017
+ */
+public class FileVersioningEvent extends GwtEvent<FileVersioningEventHandler> implements GuiEventInterface{
+
+	public static Type<FileVersioningEventHandler> TYPE = new Type<FileVersioningEventHandler>();
+	private WorkspaceVersioningOperation workspaceVersioningOperation;
+	private FileModel currentVersion;
+	private FileModel olderVersion;
+	private WindowVersioning winVersioning;
+
+
+	/**
+	 * Instantiates a new file versioning event.
+	 *
+	 * @param workspaceVersioningOperation the workspace versioning operation
+	 * @param currentVersion the current version
+	 * @param olderVersion the older version
+	 * @param winVersioning the win versioning
+	 */
+	public FileVersioningEvent(WorkspaceVersioningOperation workspaceVersioningOperation, FileModel currentVersion, FileModel olderVersion, WindowVersioning winVersioning) {
+		this.workspaceVersioningOperation = workspaceVersioningOperation;
+		this.currentVersion = currentVersion;
+		this.olderVersion = olderVersion;
+		this.winVersioning = winVersioning;
+
+	}
+
+	/**
+	 * Gets the win versioning.
+	 *
+	 * @return the winVersioning
+	 */
+	public WindowVersioning getWinVersioning() {
+
+		return winVersioning;
+	}
+
+	/**
+	 * Gets the current version.
+	 *
+	 * @return the currentVersion
+	 */
+	public FileModel getCurrentVersion() {
+
+		return currentVersion;
+	}
+
+
+
+	/**
+	 * Sets the current version.
+	 *
+	 * @param currentVersion the currentVersion to set
+	 */
+	public void setCurrentVersion(FileModel currentVersion) {
+
+		this.currentVersion = currentVersion;
+	}
+
+
+
+
+	/**
+	 * Gets the older version.
+	 *
+	 * @return the olderVersion
+	 */
+	public FileModel getOlderVersion() {
+
+		return olderVersion;
+	}
+
+
+
+	/**
+	 * Sets the workspace versioning operation.
+	 *
+	 * @param workspaceVersioningOperation the workspaceVersioningOperation to set
+	 */
+	public void setWorkspaceVersioningOperation(
+		WorkspaceVersioningOperation workspaceVersioningOperation) {
+
+		this.workspaceVersioningOperation = workspaceVersioningOperation;
+	}
+
+
+
+	/**
+	 * Sets the older version.
+	 *
+	 * @param olderVersion the olderVersion to set
+	 */
+	public void setOlderVersion(FileModel olderVersion) {
+
+		this.olderVersion = olderVersion;
+	}
+
+
+	/* (non-Javadoc)
+	 * @see com.google.gwt.event.shared.GwtEvent#getAssociatedType()
+	 */
+	@Override
+	public Type<FileVersioningEventHandler> getAssociatedType() {
+		return TYPE;
+	}
+
+	/* (non-Javadoc)
+	 * @see com.google.gwt.event.shared.GwtEvent#dispatch(com.google.gwt.event.shared.EventHandler)
+	 */
+	@Override
+	protected void dispatch(FileVersioningEventHandler handler) {
+		handler.onFileVersioning(this);
+	}
+
+
+	/* (non-Javadoc)
+	 * @see org.gcube.portlets.user.workspace.client.interfaces.GuiEventInterface#getKey()
+	 */
+	@Override
+	public EventsTypeEnum getKey() {
+		return EventsTypeEnum.FILE_VERSIONING_HISTORY_EVENT;
+	}
+
+
+	/**
+	 * Sets the versioning operation.
+	 *
+	 * @param workspaceVersioningOperation the new versioning operation
+	 */
+	public void setVersioningOperation(WorkspaceVersioningOperation workspaceVersioningOperation) {
+		this.workspaceVersioningOperation = workspaceVersioningOperation;
+	}
+
+
+	/**
+	 * Gets the versioning operation.
+	 *
+	 * @return the versioning operation
+	 */
+	public WorkspaceVersioningOperation getVersioningOperation() {
+
+		return workspaceVersioningOperation;
+	}
+}

src/main/java/org/gcube/portlets/user/workspace/client/event/FileVersioningEventHandler.java

@@ -0,0 +1,20 @@
+package org.gcube.portlets.user.workspace.client.event;
+
+import com.google.gwt.event.shared.EventHandler;
+
+
+/**
+ * The Interface FileVersioningEventHandler.
+ *
+ * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
+ * Feb 20, 2017
+ */
+public interface FileVersioningEventHandler extends EventHandler {
+
+	/**
+	 * On file versioning.
+	 *
+	 * @param fileVersioningEvent the file versioning event
+	 */
+	void onFileVersioning(FileVersioningEvent fileVersioningEvent);
+}

src/main/java/org/gcube/portlets/user/workspace/client/view/toolbars/GxtBottomToolBarItem.java

@@ -5,6 +5,7 @@ import org.gcube.portlets.user.workspace.client.ConstantsExplorer;
 import org.gcube.portlets.user.workspace.client.event.AccountingHistoryEvent;
 import org.gcube.portlets.user.workspace.client.event.AccountingReadersEvent;
 import org.gcube.portlets.user.workspace.client.event.AddAdministratorEvent;
+import org.gcube.portlets.user.workspace.client.event.FileVersioningEvent;
 import org.gcube.portlets.user.workspace.client.event.GetInfoEvent;
 import org.gcube.portlets.user.workspace.client.event.TrashEvent;
 import org.gcube.portlets.user.workspace.client.resources.Resources;
@@ -13,6 +14,7 @@ import org.gcube.portlets.user.workspace.shared.ExtendedWorkspaceACL;
 import org.gcube.portlets.user.workspace.shared.WorkspaceACL;
 import org.gcube.portlets.user.workspace.shared.WorkspaceACL.USER_TYPE;
 import org.gcube.portlets.user.workspace.shared.WorkspaceTrashOperation;
+import org.gcube.portlets.user.workspace.shared.WorkspaceVersioningOperation;
 
 import com.extjs.gxt.ui.client.Style.ButtonScale;
 import com.extjs.gxt.ui.client.Style.HorizontalAlignment;
@@ -30,11 +32,16 @@ import com.google.gwt.core.client.GWT;
 import com.google.gwt.user.client.ui.AbstractImagePrototype;
 
 /**
- * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
+ * The Class GxtBottomToolBarItem.
  *
+ * @author Francesco Mangiacrapa francesco.mangiacrapa@isti.cnr.it
  */
 public class GxtBottomToolBarItem extends ToolBar{
 
+	/**
+	 *
+	 */
+	private static final String VERSIONING = "Versioning";
 	/**
 	 *
 	 */
@@ -58,11 +65,15 @@ public class GxtBottomToolBarItem extends ToolBar{
 	private Button bHistory;
 	private Button bRead;
 	private Button btnGetTrash;
+	private Button btnVersioning;
 	private ACLDivInfo aclDivInfo;
 	private Label labelItemsNumber = new Label();
 	private HorizontalPanel hpItemsNumber;
 	private Button btnAddAdmin;
 
+	/**
+	 * Instantiates a new gxt bottom tool bar item.
+	 */
 	public GxtBottomToolBarItem(){
 		super();
 		initToolbar();
@@ -77,6 +88,9 @@ public class GxtBottomToolBarItem extends ToolBar{
 		setItemsNumberToCenter();
 	}
 
+	/**
+	 * Inits the toolbar.
+	 */
 	private void initToolbar(){
 
 		btnGetTrash = new Button("Trash");
@@ -129,6 +143,19 @@ public class GxtBottomToolBarItem extends ToolBar{
 			}
 		});
 
+		btnVersioning = new Button(VERSIONING);
+		btnVersioning.setIcon(Resources.getIconVersioning());
+		btnVersioning.addSelectionListener(new SelectionListener<ButtonEvent>() {
+
+			@Override
+			public void componentSelected(ButtonEvent ce) {
+
+				AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.SHOW, null, null, null));
+
+			}
+		});
+
+
 		btnAddAdmin = new Button(EDIT_ADMINISTRATOR);
 		//TODO CHANGE ICON
 		btnAddAdmin.setIcon(Resources.getIconManageAdministrator());
@@ -149,6 +176,7 @@ public class GxtBottomToolBarItem extends ToolBar{
 		add(btnGetTrash);
 		add(btnGetInfo);
 		add(bHistory);
+		add(btnVersioning);
 
 		hpItemsNumber = new HorizontalPanel();
 		hpItemsNumber.setId("HP-ItemsNumber");
@@ -165,11 +193,19 @@ public class GxtBottomToolBarItem extends ToolBar{
 		enableInfoHistoryButtons(false);
 	}
 
+	/**
+	 * Sets the visible add administrators.
+	 *
+	 * @param bool the new visible add administrators
+	 */
 	private void setVisibleAddAdministrators(boolean bool){
 		btnAddAdmin.setVisible(bool);
 	}
 
 
+	/**
+	 * Reset details.
+	 */
 	public void resetDetails(){
 
 		this.txtDimension.setText("");
@@ -178,12 +214,29 @@ public class GxtBottomToolBarItem extends ToolBar{
 		this.txtOwner.setText("");
 	}
 
+
+
+	/**
+	 * Enable info history buttons.
+	 *
+	 * @param enable the enable
+	 */
 	public void enableInfoHistoryButtons(boolean enable){
 		bHistory.setEnabled(enable);
 		bRead.setEnabled(enable);
 		btnGetInfo.setEnabled(enable);
+		btnVersioning.setEnabled(enable);
 	}
 
+	/**
+	 * Sets the details.
+	 *
+	 * @param itemName the item name
+	 * @param description the description
+	 * @param dimension the dimension
+	 * @param creationTime the creation time
+	 * @param owner the owner
+	 */
 	public void setDetails(String itemName, String description, String dimension, String creationTime, String owner){
 
 		this.resetDetails();
@@ -195,6 +248,11 @@ public class GxtBottomToolBarItem extends ToolBar{
 
 	}
 
+	/**
+	 * Update acl info.
+	 *
+	 * @param acl the acl
+	 */
 	public void updateACLInfo(WorkspaceACL acl){
 		setVisibleAddAdministrators(false);
 
@@ -209,6 +267,12 @@ public class GxtBottomToolBarItem extends ToolBar{
 	}
 
 
+	/**
+	 * Update add administator info.
+	 *
+	 * @param loginUserLogger the login user logger
+	 * @param acl the acl
+	 */
 	public void updateAddAdministatorInfo(String loginUserLogger, ExtendedWorkspaceACL acl){
 		setVisibleAddAdministrators(false);
 
@@ -225,6 +289,11 @@ public class GxtBottomToolBarItem extends ToolBar{
 		this.layout();
 	}
 
+	/**
+	 * Update trash icon.
+	 *
+	 * @param trashIsFull the trash is full
+	 */
 	public void updateTrashIcon(boolean trashIsFull){
 
 		if(trashIsFull)
@@ -234,7 +303,9 @@ public class GxtBottomToolBarItem extends ToolBar{
 	}
 
 	/**
-	 * @param size
+	 * Update items number.
+	 *
+	 * @param size the size
 	 */
 	public void updateItemsNumber(int size) {
 		if(size<=0)
@@ -247,6 +318,9 @@ public class GxtBottomToolBarItem extends ToolBar{
 		hpItemsNumber.layout();
 	}
 
+	/**
+	 * Sets the items number to center.
+	 */
 	public void setItemsNumberToCenter(){
 
 		if(this.isRendered()){

src/main/java/org/gcube/portlets/user/workspace/client/view/versioning/VersioningInfoContainer.java

@@ -1,4 +1,4 @@
-package org.gcube.portlets.user.workspace.client.view.version;
+package org.gcube.portlets.user.workspace.client.view.versioning;
 
 import java.util.Arrays;
 import java.util.List;
@@ -59,19 +59,21 @@ public class VersioningInfoContainer extends LayoutContainer {
 	private Button buttonRestore;
 	private Button buttonRestoreAll;
 	private Button buttonEmptyTrash;
-	private FileModel fileVersioned;
+	private FileModel currentVersion;
+	private WindowVersioning windowVersioning;
 
 	/**
 	 * Instantiates a new versioning info container.
 	 *
 	 * @param file the versioning files
 	 */
-	public VersioningInfoContainer(FileModel file) {
+	public VersioningInfoContainer(FileModel file, WindowVersioning windowVersioning) {
 
 		initContentPanel();
 		initGrid();
 		createToolBar();
-		this.fileVersioned = file;
+		this.currentVersion = file;
+		this.windowVersioning = windowVersioning;
 
 		activeButtonOnSelection(false);
 		//updateVersions(file);
@@ -125,7 +127,7 @@ public class VersioningInfoContainer extends LayoutContainer {
 			public void componentSelected(ButtonEvent ce) {
 
 				if(checkSelection())
-					AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.RESTORE, grid.getSelectionModel().getSelectedItems().get(0)));
+					AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.RESTORE, currentVersion, grid.getSelectionModel().getSelectedItems().get(0), windowVersioning));
 			}
 		});
 
@@ -142,7 +144,7 @@ public class VersioningInfoContainer extends LayoutContainer {
 			public void componentSelected(ButtonEvent ce) {
 
 				if(checkSelection())
-					AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.DELETE_PERMANENTLY, grid.getSelectionModel().getSelectedItems().get(0)));
+					AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.DELETE_PERMANENTLY,currentVersion, grid.getSelectionModel().getSelectedItems().get(0), windowVersioning));
 
 			}
 		});
@@ -162,7 +164,7 @@ public class VersioningInfoContainer extends LayoutContainer {
 			public void componentSelected(ButtonEvent ce) {
 
 				if(checkSelection())
-					AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.DOWNLOAD, grid.getSelectionModel().getSelectedItems().get(0)));
+					AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.DOWNLOAD, currentVersion, grid.getSelectionModel().getSelectedItems().get(0), windowVersioning));
 			}
 		});
 
@@ -181,7 +183,7 @@ public class VersioningInfoContainer extends LayoutContainer {
 //				if(checkSelection())
 //					AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.EMPTY_OLDER_VERSIONS, null));
 
-				DialogConfirm box = new DialogConfirm(null, "Confirm Delete?", "Are you sure you want delete older versions of: "+ fileVersioned.getName());
+				DialogConfirm box = new DialogConfirm(null, "Confirm Delete?", "Are you sure you want delete older versions of: "+ currentVersion.getName());
 				box.setModal(true);
 				box.center();
 				box.getYesButton().addClickHandler(new ClickHandler() {
@@ -189,7 +191,7 @@ public class VersioningInfoContainer extends LayoutContainer {
 					@Override
 					public void onClick(ClickEvent event) {
 
-						AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.EMPTY_OLDER_VERSIONS, fileVersioned));
+						AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.EMPTY_OLDER_VERSIONS, currentVersion, null, windowVersioning));
 					}
 				});
 			}
@@ -209,7 +211,7 @@ public class VersioningInfoContainer extends LayoutContainer {
 			@Override
 			public void componentSelected(ButtonEvent ce) {
 
-				AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.REFRESH, null));
+				AppController.getEventBus().fireEvent(new FileVersioningEvent(WorkspaceVersioningOperation.REFRESH, currentVersion, null, windowVersioning));
 			}
 		});
 

src/main/java/org/gcube/portlets/user/workspace/client/view/versioning/WindowVersioning.java

@@ -1,4 +1,4 @@
-package org.gcube.portlets.user.workspace.client.view.version;
+package org.gcube.portlets.user.workspace.client.view.versioning;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -46,7 +46,7 @@ public class WindowVersioning extends Window {
 	 *
 	 * @param fileVersioned the file versioned
 	 */
-	private WindowVersioning(FileModel fileVersioned) {
+	public WindowVersioning(FileModel fileVersioned) {
 		initAccounting();
 		this.fileVersioned = fileVersioned;
 	    //setIcon(Resources.getTrashFull()); //TODO
@@ -61,7 +61,7 @@ public class WindowVersioning extends Window {
 		setSize(770, 400);
 		setResizable(true);
 		setMaximizable(true);
-		this.versioningContainer = new VersioningInfoContainer(fileVersioned);
+		this.versioningContainer = new VersioningInfoContainer(fileVersioned, this);
 		add(versioningContainer);
 
 		ToolBar toolBar = new ToolBar();