/*
* JBoss, Home of Professional Open Source
* Copyright 2013, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.photoalbum.manager;
/**
* Class encapsulated all functionality, related to drag'n'drop process.
*
* @author Andrey Markhel
*/
import javax.inject.Inject;
import javax.inject.Named;
import org.richfaces.event.DropEvent;
import org.richfaces.event.DropListener;
import org.richfaces.photoalbum.model.Album;
import org.richfaces.photoalbum.model.Event;
import org.richfaces.photoalbum.model.Image;
import org.richfaces.photoalbum.model.Shelf;
import org.richfaces.photoalbum.model.User;
import org.richfaces.photoalbum.model.actions.IAlbumAction;
import org.richfaces.photoalbum.model.actions.IEventAction;
import org.richfaces.photoalbum.model.event.AlbumEvent;
import org.richfaces.photoalbum.model.event.ErrorEvent;
import org.richfaces.photoalbum.model.event.EventType;
import org.richfaces.photoalbum.model.event.Events;
import org.richfaces.photoalbum.model.event.ImageEvent;
import org.richfaces.photoalbum.util.Constants;
import org.richfaces.photoalbum.util.PhotoAlbumException;
import org.richfaces.photoalbum.util.Preferred;
import org.richfaces.photoalbum.util.ApplicationUtils;
@Named("dndManager")
public class DnDManager implements DropListener {
@Inject
@Preferred
User user;
@Inject
FileManager fileManager;
@Inject
IAlbumAction albumAction;
@Inject
IEventAction eventAction;
@Inject
@EventType(Events.ADD_ERROR_EVENT)
javax.enterprise.event.Event<ErrorEvent> error;
@Inject
@EventType(Events.ALBUM_DRAGGED_EVENT)
javax.enterprise.event.Event<AlbumEvent> albumEvent;
@Inject
@EventType(Events.IMAGE_DRAGGED_EVENT)
javax.enterprise.event.Event<ImageEvent> imageEvent;
/**
* Listener, that is invoked during drag'n'drop process. Only registered users can drag images.
*
* @param event - event, indicated that drag'n'drop started
*/
public void processDrop(DropEvent dropEvent) {
if (user == null) {
return;
}
Object dragValue = dropEvent.getDragValue();
Object dropValue = dropEvent.getDropValue();
if (dragValue instanceof Image) {
// If user drag image
if (!((Album) dropValue).getOwner().getLogin().equals(user.getLogin())) {
// Drag in the album, that not belongs to user
error.fire(new ErrorEvent("", Constants.DND_PHOTO_ERROR));
return;
}
handleImage((Image) dragValue, (Album) dropValue);
} else if (dragValue instanceof Album) {
// If user drag album
if (!((Shelf) dropValue).getOwner().getLogin().equals(user.getLogin())) {
// Drag in the shelf, that not belongs to user
error.fire(new ErrorEvent("", Constants.DND_ALBUM_ERROR));
return;
}
handleAlbum((Album) dragValue, (Shelf) dropValue);
}
}
private void handleAlbum(Album dragValue, Shelf dropValue) {
if (dragValue.getShelf().equals(dropValue)) {
return;
}
String pathOld = dragValue.getPath();
dropValue.addAlbum(dragValue);
try {
albumAction.editAlbum(dragValue);
} catch (Exception e) {
error.fire(new ErrorEvent("Error:", Constants.ERROR_IN_DB + "<br/>" + e.getMessage()));
return;
}
albumEvent.fire(new AlbumEvent(dragValue, pathOld));
ApplicationUtils.addToRerender(Constants.TREE_ID);
}
private void handleImage(Image dragValue, Album dropValue) {
if (dragValue.getAlbum().equals(dropValue)) {
return;
}
String pathOld = dragValue.getFullPath();
dropValue.addImage(dragValue);
try {
albumAction.editAlbum(dropValue);
} catch (Exception e) {
error.fire(new ErrorEvent("Error:", Constants.ERROR_IN_DB + "<br/>" + e.getMessage()));
return;
}
imageEvent.fire(new ImageEvent(dragValue, pathOld));
ApplicationUtils.addToRerender(Constants.TREE_ID);
}
public void addAlbumToEvent(DropEvent dropEvent) {
if (user == null) {
return;
}
Object dragValue = dropEvent.getDragValue();
Event event = (Event) dropEvent.getDropValue();
if (dragValue instanceof Album) {
Album album = (Album) dragValue;
String pathOld = album.getPath();
event.getShelf().addAlbum(album);
try {
albumAction.editAlbum(album);
eventAction.editEvent(event);
} catch (PhotoAlbumException e) {
error.fire(new ErrorEvent("Error:", Constants.ERROR_IN_DB + ": " + e.getMessage()));
}
albumEvent.fire(new AlbumEvent(album, pathOld));
}
}
}