newalertaction.java

EclipseTrader is a stock exchange analysis system, featuring shares pricing watch, intraday and hi

/*
 * Copyright (c) 2004-2006 Marco Maccaferri and others.
 * 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.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Marco Maccaferri - initial API and implementation
 */

package net.sourceforge.eclipsetrader.trading.actions;

import net.sourceforge.eclipsetrader.core.CorePlugin;
import net.sourceforge.eclipsetrader.core.db.Alert;
import net.sourceforge.eclipsetrader.core.db.WatchlistItem;
import net.sourceforge.eclipsetrader.trading.WatchlistItemSelection;
import net.sourceforge.eclipsetrader.trading.wizards.NewAlertWizard;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;

public class NewAlertAction implements IWorkbenchWindowActionDelegate, IViewActionDelegate
{
    private WatchlistItemSelection selection;

    /* (non-Javadoc)
     * @see org.eclipse.ui.IWorkbenchWindowActionDelegate#init(org.eclipse.ui.IWorkbenchWindow)
     */
    public void init(IWorkbenchWindow window)
    {
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IViewActionDelegate#init(org.eclipse.ui.IViewPart)
     */
    public void init(IViewPart view)
    {
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
     */
    public void dispose()
    {
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
     */
    public void run(IAction action)
    {
        if (selection != null)
        {
            WatchlistItem watchlistItem = selection.getWatchlistItem();
            NewAlertWizard wizard = new NewAlertWizard();
            Alert alert = wizard.open(watchlistItem);
            if (alert != null)
            {
                watchlistItem.getAlerts().add(alert);
                CorePlugin.getRepository().save(watchlistItem.getParent());
            }
        }
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
     */
    public void selectionChanged(IAction action, ISelection selection)
    {
        this.selection = null;
        if (selection instanceof WatchlistItemSelection)
            this.selection = (WatchlistItemSelection)selection;
        action.setEnabled(this.selection != null);
    }
}