/*******************************************************************************
 * Copyright (c) 2009, 2010 Progress Software Corporation.
 * 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
 ******************************************************************************/
package org.fusesource.tools.messaging.cnf.actions;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.widgets.Display;
import org.fusesource.tools.messaging.IConstants;
import org.fusesource.tools.messaging.preference.BasePreferenceHandler;
import org.fusesource.tools.messaging.ui.ImageConstants;
import org.fusesource.tools.messaging.ui.MessagesHistoryDialog;
import org.fusesource.tools.messaging.utils.ImagesUtil;

/**
 * Handles MessageHistory count changes
 * 
 */
public class MessagesHistoryAction extends Action {

    public MessagesHistoryAction() {
        setText("Message history count");
        setId(IConstants.MESSAGES_HISTORY_COUNT);
        setToolTipText("Message history count");
        ImageDescriptor image = ImagesUtil.getInstance().getImageDescriptor(ImageConstants.HISTORY_IMAGE);
        setImageDescriptor(image);
    }

    @Override
    public void run() {

        int value = new Integer(BasePreferenceHandler.getInstance().getPreferenceValue(getMessageHistoryCountKey()))
                .intValue();
        MessagesHistoryDialog dialog = new MessagesHistoryDialog(Display.getDefault().getActiveShell(), value);
        dialog.open();
        if (dialog.getReturnCode() == Window.OK) {
            int count = dialog.getHistoryCount();
            if (count != -1) {
                BasePreferenceHandler.getInstance().setPreferenceValue(getMessageHistoryCountKey(), count + "");
            }
        }
    }

    private String getMessageHistoryCountKey() {
        return IConstants.MESSAGES_HISTORY_COUNT;
    }
}