/* ********************************************************************** **
** Copyright notice **
** **
** (c) 2005-2009 RSSOwl Development Team **
** http://www.rssowl.org/ **
** **
** All rights reserved **
** **
** This program and the accompanying materials are made available under **
** the terms of the Eclipse Public License v1.0 which accompanies this **
** distribution, and is available at: **
** http://www.rssowl.org/legal/epl-v10.html **
** **
** A copy is found in the file epl-v10.html and important notices to the **
** license from the team is found in the textfile LICENSE.txt distributed **
** in this package. **
** **
** This copyright notice MUST APPEAR in all copies of the file! **
** **
** Contributors: **
** RSSOwl Development Team - initial API and implementation **
** **
** ********************************************************************** */
package org.rssowl.ui.internal.actions;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.rssowl.core.Owl;
import org.rssowl.core.internal.persist.pref.DefaultPreferences;
import org.rssowl.core.persist.IBookMark;
import org.rssowl.core.persist.IEntity;
import org.rssowl.core.persist.IFolder;
import org.rssowl.core.persist.IFolderChild;
import org.rssowl.core.persist.INews;
import org.rssowl.core.persist.INewsMark;
import org.rssowl.core.persist.INews.State;
import org.rssowl.core.persist.dao.DynamicDAO;
import org.rssowl.core.persist.dao.IFolderDAO;
import org.rssowl.core.persist.dao.INewsDAO;
import org.rssowl.core.persist.pref.IPreferenceScope;
import org.rssowl.core.util.CoreUtils;
import org.rssowl.core.util.RetentionStrategy;
import org.rssowl.ui.internal.Controller;
import org.rssowl.ui.internal.FolderNewsMark;
import org.rssowl.ui.internal.undo.NewsStateOperation;
import org.rssowl.ui.internal.undo.UndoStack;
import org.rssowl.ui.internal.util.JobRunner;
import org.rssowl.ui.internal.util.ModelUtils;
import java.util.Collection;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;
/**
* @author bpasero
*/
public class MarkTypesReadAction extends Action implements IWorkbenchWindowActionDelegate {
private IStructuredSelection fSelection;
private INewsDAO fNewsDao;
/** Default Constructor */
public MarkTypesReadAction() {
this(StructuredSelection.EMPTY);
}
/**
* @param selection
*/
public MarkTypesReadAction(IStructuredSelection selection) {
fSelection = selection;
fNewsDao = DynamicDAO.getDAO(INewsDAO.class);
}
/*
* @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
*/
public void run(IAction action) {
JobRunner.runInBackgroundWithBusyIndicator(new Runnable() {
public void run() {
MarkTypesReadAction.this.internalRun();
}
});
}
/*
* @see org.eclipse.jface.action.Action#run()
*/
@Override
public void run() {
JobRunner.runInBackgroundWithBusyIndicator(new Runnable() {
public void run() {
MarkTypesReadAction.this.internalRun();
}
});
}
private void internalRun() {
/* Only consider Entities */
List<IEntity> entities = ModelUtils.getEntities(fSelection);
/* Retrieve any Folder that is to be marked read */
Set<IFolder> folders = null;
for (Object element : entities) {
if (element instanceof IFolder) {
if (folders == null)
folders = new HashSet<IFolder>();
folders.add((IFolder) element);
}
}
/* Normalize */
if (folders != null)
for (IFolder folder : folders)
CoreUtils.normalize(folder, entities);
/* Use Map for follow-up Retention */
Map<IBookMark, Collection<INews>> retentionHelperMap = new HashMap<IBookMark, Collection<INews>>();
/* Retrieve affected News */
EnumSet<State> enumSet = EnumSet.of(INews.State.NEW, INews.State.UNREAD, INews.State.UPDATED);
Set<INews> news = new HashSet<INews>();
for (IEntity element : entities) {
if (element instanceof IFolder)
fillNews((IFolder) element, news, retentionHelperMap);
else if (element instanceof IBookMark)
fillNews((IBookMark) element, news, retentionHelperMap);
else if (element instanceof FolderNewsMark)
fillNews(((FolderNewsMark) element).getFolder(), news, retentionHelperMap);
else if (element instanceof INewsMark)
fillNews((INewsMark) element, news);
else if (element instanceof INews && enumSet.contains(((INews) element).getState()))
news.add((INews) element);
}
/* Only affect equivalent News if not all News are affected */
boolean affectEquivalentNews = !equalsRootFolders(folders);
/* Support Undo */
if (!news.isEmpty())
UndoStack.getInstance().addOperation(new NewsStateOperation(news, INews.State.READ, affectEquivalentNews));
/* Apply the state to the NewsItems for Retention to handle them properly */
for (INews newsItem : news) {
newsItem.setState(INews.State.READ);
}
/* See if Retention is required for each BookMark */
Set<Entry<IBookMark, Collection<INews>>> entries = retentionHelperMap.entrySet();
for (Entry<IBookMark, Collection<INews>> entry : entries) {
IBookMark bookmark = entry.getKey();
/* Delete News that are now marked as Read */
List<INews> deletedNews = RetentionStrategy.process(bookmark, entry.getValue());
/*
* This is an optimization to the process. Any News that is marked as read
* is getting deleted here. Thus, there is no need in marking the News as
* Read.
*/
news.removeAll(deletedNews);
}
/* Mark News Read */
if (news.size() > 0 && !Controller.getDefault().isShuttingDown()) {
/* Mark Saved Search Service as in need for a quick Update */
Controller.getDefault().getSavedSearchService().forceQuickUpdate();
/* Perform Operation */
Owl.getPersistenceService().getDAOService().getNewsDAO().setState(news, INews.State.READ, affectEquivalentNews, true);
}
}
private boolean equalsRootFolders(Collection<IFolder> folders) {
Collection<IFolder> rootFolders = DynamicDAO.getDAO(IFolderDAO.class).loadRoots();
return folders != null && folders.size() == rootFolders.size() && rootFolders.containsAll(folders);
}
private void fillNews(IFolder folder, Collection<INews> news, Map<IBookMark, Collection<INews>> bookMarkNewsMap) {
List<IFolderChild> children = folder.getChildren();
for (IFolderChild child : children) {
if (child instanceof IBookMark)
fillNews((IBookMark) child, news, bookMarkNewsMap);
else if (child instanceof INewsMark)
fillNews((INewsMark) child, news);
else if (child instanceof IFolder)
fillNews((IFolder) child, news, bookMarkNewsMap);
}
}
private void fillNews(IBookMark bookmark, Collection<INews> news, Map<IBookMark, Collection<INews>> bookMarkNewsMap) {
IPreferenceScope bookMarkPrefs = Owl.getPreferenceService().getEntityScope(bookmark);
boolean requiresRetention = bookMarkPrefs.getBoolean(DefaultPreferences.DEL_READ_NEWS_STATE);
final EnumSet<State> enumSet = EnumSet.of(INews.State.NEW, INews.State.UNREAD, INews.State.UPDATED);
/* Retention on read News required, load *read* as well */
if (requiresRetention) {
Collection<INews> feedsNews = fNewsDao.loadAll(bookmark.getFeedLinkReference(), INews.State.getVisible());
for (INews newsItem : feedsNews) {
/* Do not add READ news */
if (enumSet.contains(newsItem.getState()))
news.add(newsItem);
}
bookMarkNewsMap.put(bookmark, feedsNews);
}
/* No retention required, just load the ones being affected */
else if (bookmark.getNewsCount(enumSet) > 0) {
news.addAll(fNewsDao.loadAll(bookmark.getFeedLinkReference(), enumSet));
}
}
private void fillNews(INewsMark newsmark, Collection<INews> news) {
news.addAll(newsmark.getNews(EnumSet.of(INews.State.NEW, INews.State.UNREAD, INews.State.UPDATED)));
}
/*
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction,
* org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged(IAction action, ISelection selection) {
if (selection instanceof IStructuredSelection)
fSelection = (IStructuredSelection) selection;
}
/*
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
*/
public void dispose() {}
/*
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#init(org.eclipse.ui.IWorkbenchWindow)
*/
public void init(IWorkbenchWindow window) {}
}