net.sf.jmoney.copier.actions.PasteContentsAction.java Source code

Introduction

Here is the source code for net.sf.jmoney.copier.actions.PasteContentsAction.java

Source

/*
*
*  JMoney - A Personal Finance Manager
*  Copyright (c) 2004 Nigel Westbury <westbury@users.sourceforge.net>
*
*
*  This program is free software; you can redistribute it and/or modify
*  it under the terms of the GNU General Public License as published by
*  the Free Software Foundation; either version 2 of the License, or
*  (at your option) any later version.
*
*  This program 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 General Public License for more details.
*
*  You should have received a copy of the GNU General Public License
*  along with this program; if not, write to the Free Software
*  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/

package net.sf.jmoney.copier.actions;

import net.sf.jmoney.JMoneyPlugin;
import net.sf.jmoney.copier.CopierPlugin;
import net.sf.jmoney.model2.DatastoreManager;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;

/**
 * Our sample action implements workbench action delegate.
 * The action proxy will be created by the workbench and
 * shown in the UI. When the user tries to use the action,
 * this delegate will be created and execution will be 
 * delegated to it.
 * @see IWorkbenchWindowActionDelegate
 */
public class PasteContentsAction implements IWorkbenchWindowActionDelegate {
    private IWorkbenchWindow window;

    /**
     * The constructor.
     */
    public PasteContentsAction() {
    }

    /**
     * The action has been activated. The argument of the
     * method represents the 'real' action sitting
     * in the workbench UI.
     * @see IWorkbenchWindowActionDelegate#run
     */
    public void run(IAction action) {
        DatastoreManager destinationSessionManager = JMoneyPlugin.getDefault().getSessionManager();

        if (destinationSessionManager == null) {
            MessageDialog waitDialog = new MessageDialog(window.getShell(), "Menu item unavailable", null, // accept the default window icon
                    "No session is open.  "
                            + "This action is used to copy session data from one session to another.  "
                            + "You must open a new session into which the session contents can be copied.",
                    MessageDialog.ERROR, new String[] { IDialogConstants.OK_LABEL }, 0);
            waitDialog.open();
            return;
        }

        DatastoreManager sourceSessionManager = CopierPlugin.getSessionManager();
        if (sourceSessionManager == null) {
            MessageDialog waitDialog = new MessageDialog(window.getShell(), "Menu item unavailable", null, // accept the default window icon
                    "No session has been cut.  "
                            + "Before using this action, you must first use the 'Cut Session' action "
                            + "while the source session is open.",
                    MessageDialog.ERROR, new String[] { IDialogConstants.OK_LABEL }, 0);
            waitDialog.open();
            return;
        }

        // Copy the data across.
        CopierPlugin.getDefault().populateSession(destinationSessionManager.getSession(),
                sourceSessionManager.getSession());

        // Confirm copy.
    }

    /**
     * Selection in the workbench has been changed. We 
     * can change the state of the 'real' action here
     * if we want, but this can only happen after 
     * the delegate has been created.
     * @see IWorkbenchWindowActionDelegate#selectionChanged
     */
    public void selectionChanged(IAction action, ISelection selection) {
    }

    /**
     * We can use this method to dispose of any system
     * resources we previously allocated.
     * @see IWorkbenchWindowActionDelegate#dispose
     */
    public void dispose() {
    }

    /**
     * We will cache window object in order to
     * be able to provide parent shell for the message dialog.
     * @see IWorkbenchWindowActionDelegate#init
     */
    public void init(IWorkbenchWindow window) {
        this.window = window;
    }
}