/* ********************************************************************** **
** 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.bindings.TriggerSequence;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.osgi.util.NLS;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.keys.IBindingService;
import org.rssowl.core.persist.INews;
import org.rssowl.core.persist.dao.DynamicDAO;
import org.rssowl.core.persist.dao.INewsDAO;
import org.rssowl.ui.internal.Controller;
import org.rssowl.ui.internal.OwlUI;
import org.rssowl.ui.internal.editors.feed.FeedView;
import org.rssowl.ui.internal.undo.NewsStateOperation;
import org.rssowl.ui.internal.undo.UndoStack;
import org.rssowl.ui.internal.util.ModelUtils;
import java.util.EnumSet;
import java.util.List;
/**
* @author bpasero
*/
public class ToggleReadStateAction extends Action implements IWorkbenchWindowActionDelegate {
/** Action ID */
public static final String ID = "org.rssowl.ui.ToggleReadState"; //$NON-NLS-1$
/* Unread States (New, Unread, Updated) */
private static final EnumSet<INews.State> UNREAD_STATES = EnumSet.of(INews.State.NEW, INews.State.UNREAD, INews.State.UPDATED);
private IStructuredSelection fSelection;
private boolean fMarkRead;
/** Leave for reflection */
public ToggleReadStateAction() {
this(StructuredSelection.EMPTY);
}
/**
* @param selection
*/
public ToggleReadStateAction(IStructuredSelection selection) {
fSelection = selection;
fMarkRead = shouldMarkRead(fSelection);
}
/*
* @see org.eclipse.jface.action.Action#getStyle()
*/
@Override
public int getStyle() {
return IAction.AS_CHECK_BOX;
}
private boolean shouldMarkRead(IStructuredSelection selection) {
List<INews> entities = ModelUtils.getEntities(selection, INews.class);
for (INews entity : entities) {
if (UNREAD_STATES.contains(entity.getState())) {
return true;
}
}
return false;
}
/*
* @see org.eclipse.jface.action.Action#getText()
*/
@Override
public String getText() {
IBindingService bs = (IBindingService) PlatformUI.getWorkbench().getService(IBindingService.class);
TriggerSequence binding = bs.getBestActiveBindingFor(ID);
return binding != null ? NLS.bind(Messages.ToggleReadStateAction_NEWS_READ_BINDING, binding.format()) : Messages.ToggleReadStateAction_NEWS_READ;
}
/*
* @see org.eclipse.jface.action.Action#isChecked()
*/
@Override
public boolean isChecked() {
return !fMarkRead && !fSelection.isEmpty();
}
/*
* @see org.eclipse.jface.action.Action#getImageDescriptor()
*/
@Override
public ImageDescriptor getImageDescriptor() {
return OwlUI.getImageDescriptor("icons/elcl16/mark_read.gif"); //$NON-NLS-1$
}
/*
* @see org.eclipse.jface.action.Action#run()
*/
@Override
public void run() {
internalRun(fSelection, fMarkRead);
}
/*
* @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
*/
public void run(IAction action) {
FeedView activeFeedView = OwlUI.getActiveFeedView();
if (activeFeedView != null) {
IStructuredSelection selection = (IStructuredSelection) activeFeedView.getSite().getSelectionProvider().getSelection();
if (selection != null && !selection.isEmpty())
internalRun(selection, shouldMarkRead(selection));
}
}
private void internalRun(IStructuredSelection selection, boolean markRead) {
/* Nothing to do */
if (selection.isEmpty())
return;
/* Mark Read */
if (markRead)
new MarkTypesReadAction(selection).run();
/* Mark Unread */
else {
/* Mark Saved Search Service as in need for a quick Update */
Controller.getDefault().getSavedSearchService().forceQuickUpdate();
/* Only consider INews */
List<INews> newsList = ModelUtils.getEntities(selection, INews.class);
/* Support Undo */
UndoStack.getInstance().addOperation(new NewsStateOperation(newsList, INews.State.UNREAD, false));
/* Perform Operation */
DynamicDAO.getDAO(INewsDAO.class).setState(newsList, INews.State.UNREAD, false, false);
}
}
/*
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
*/
public void dispose() {}
/*
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#init(org.eclipse.ui.IWorkbenchWindow)
*/
public void init(IWorkbenchWindow window) {}
/*
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged(IAction action, ISelection selection) {}
}