/*
* 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 working with slideshow.
*
* @author Andrey Markhel
*/
import java.io.Serializable;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.event.Event;
import javax.enterprise.event.Observes;
import javax.inject.Inject;
import javax.inject.Named;
import org.richfaces.json.JSONObject;
import org.richfaces.photoalbum.model.Image;
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.SimpleEvent;
import org.richfaces.photoalbum.social.facebook.FacebookAlbumCache;
import org.richfaces.photoalbum.social.gplus.GooglePlusAlbumCache;
import org.richfaces.photoalbum.util.Constants;
import org.richfaces.photoalbum.util.ImageHandler;
import org.richfaces.photoalbum.util.ApplicationUtils;
@ApplicationScoped
@Named("slideshow")
public class SlideshowManager implements Serializable {
private static final long serialVersionUID = 7801877176558409702L;
private Integer slideshowIndex;
private Integer startSlideshowIndex;
private ImageHandler selectedImage;
private boolean active;
private boolean errorDetected;
@Inject
Model model;
@Inject
FileManager fileManager;
@Inject
GooglePlusAlbumCache gpac;
@Inject
FacebookAlbumCache fac;
@Inject
@EventType(Events.ADD_ERROR_EVENT)
Event<ErrorEvent> error;
private int interval = Constants.INITIAL_DELAY;
public int getInterval() {
return interval;
}
public void setInterval(int interval) {
this.interval = interval;
}
public boolean isActive() {
return active;
}
public void setActive(boolean active) {
this.active = active;
}
/**
* This method invoked after user click on 'Start slideshow' button and no image is selected. After execution of this method
* slideshow will be activated.
*
*/
public void startSlideshow() {
if (!this.active) {
initSlideshow();
}
if (this.selectedImage == null && (model.getImages() == null || model.getImages().size() < 1)) {
onError(true);
return;
}
if (this.selectedImage == null) {
this.selectedImage = new ImageHandler(model.getImages().get(this.slideshowIndex));
}
// mark image as 'visited'
if (this.selectedImage.getType() == ImageHandler.LOCAL) {
((Image) this.selectedImage.getImage()).setVisited(true);
}
// Check if that image was recently deleted. If yes, immediately stop slideshow process
checkIsFileRecentlyDeleted();
}
/**
* This method invoked after user click on 'Start slideshow' button. After execution of this method slideshow will be
* activated starting from selected image.
*
* @param selectedImage - first image to show during slideshow
*/
public void startSlideshow(Image selectedImage) {
initSlideshow();
this.slideshowIndex = model.getImages().indexOf(selectedImage);
this.startSlideshowIndex = this.slideshowIndex;
this.selectedImage = new ImageHandler(selectedImage);
startSlideshow();
}
public void startSlideshow(JSONObject remoteImage) {
initSlideshow();
this.selectedImage = new ImageHandler(remoteImage);
switch(selectedImage.getType()) {
case ImageHandler.FACEBOOK:
this.slideshowIndex = fac.getCurrentImages().indexOf(remoteImage);
break;
case ImageHandler.GOOGLE:
this.slideshowIndex = gpac.getCurrentImages().indexOf(remoteImage);
}
this.startSlideshowIndex = this.slideshowIndex;
startSlideshow();
}
public void startSlideshowRemote(int kind) {
this.slideshowIndex = this.startSlideshowIndex = 0;
switch(kind) {
case ImageHandler.FACEBOOK:
this.selectedImage = new ImageHandler(fac.getCurrentImages().get(0));
break;
case ImageHandler.GOOGLE:
this.selectedImage = new ImageHandler(gpac.getCurrentImages().get(0));
}
startSlideshow();
}
/**
* This method invoked after user click on 'Stop slideshow' button. After execution of this method slideshow will be
* de-activated.
*
*/
public void stopSlideshow(@Observes @EventType(Events.STOP_SLIDESHOW_EVENT) SimpleEvent se) {
active = false;
errorDetected = false;
this.selectedImage = null;
this.slideshowIndex = 0;
this.startSlideshowIndex = 0;
}
public void stopSlideshow() {
stopSlideshow(new SimpleEvent());
}
public Integer getSlideshowIndex() {
return slideshowIndex;
}
public void setSlideshowIndex(Integer slideshowIndex) {
this.slideshowIndex = slideshowIndex;
}
public ImageHandler getSelectedImage() {
return selectedImage;
}
public void setSelectedImage(Image selectedImage) {
this.selectedImage.setImage(selectedImage);
}
/**
* This method used to prepare next image to show during slideshow
*
*/
public void showNextImage() {
if (!active) {
onError(false);
return;
}
// reset index if we reached last image
if (isLastImage()) {
slideshowIndex = -1;
}
slideshowIndex++;
// To prevent slideshow mechanism working in cycle.
if (slideshowIndex == startSlideshowIndex) {
onError(false);
return;
}
setNextImage();
// Check if that image was recently deleted. If yes, stopping slideshow
checkIsFileRecentlyDeleted();
}
private boolean isLastImage() {
switch(selectedImage.getType()) {
case ImageHandler.LOCAL:
return slideshowIndex == model.getImages().size() - 1;
case ImageHandler.FACEBOOK:
return slideshowIndex == fac.getCurrentImages().size() - 1;
case ImageHandler.GOOGLE:
return slideshowIndex == gpac.getCurrentImages().size() - 1;
default:
return true;
}
}
private void setNextImage() {
switch(selectedImage.getType()) {
case ImageHandler.LOCAL:
selectedImage.setImage(model.getImages().get(slideshowIndex));
((Image) this.selectedImage.getImage()).setVisited(true);
break;
case ImageHandler.FACEBOOK:
selectedImage.setImage(fac.getCurrentImages().get(slideshowIndex));
break;
case ImageHandler.GOOGLE:
selectedImage.setImage(gpac.getCurrentImages().get(slideshowIndex));
break;
}
}
public Integer getStartSlideshowIndex() {
return startSlideshowIndex;
}
public void setStartSlideshowIndex(Integer startSlideshowIndex) {
this.startSlideshowIndex = startSlideshowIndex;
}
public boolean isErrorDetected() {
return errorDetected;
}
public void setErrorDetected(boolean errorDetected) {
this.errorDetected = errorDetected;
}
private void initSlideshow() {
active = true;
errorDetected = false;
this.slideshowIndex = 0;
this.startSlideshowIndex = 0;
}
private void onError(boolean isShowOnUI) {
stopSlideshow();
errorDetected = true;
ApplicationUtils.addToRerender(Constants.MAINAREA_ID);
if (isShowOnUI) {
error.fire(new ErrorEvent(Constants.NO_IMAGES_FOR_SLIDESHOW_ERROR));
}
return;
}
private void checkIsFileRecentlyDeleted() {
if (!selectedImage.isLocalImage()) {
return;
}
Image image = (Image) selectedImage.getImage();
if (!fileManager.isFilePresent(image.getFullPath())) {
error.fire(new ErrorEvent(Constants.IMAGE_RECENTLY_DELETED_ERROR));
active = false;
errorDetected = true;
ApplicationUtils.addToRerender(Constants.MAINAREA_ID);
model.resetModel(NavigationEnum.ALBUM_IMAGE_PREVIEW, image.getAlbum().getOwner(), image.getAlbum().getShelf(),
image.getAlbum(), null, image.getAlbum().getImages());
return;
}
}
}