org.eclipse.osbp.runtime.web.vaadin.databinding/src/org/eclipse/osbp/runtime/web/vaadin/databinding/model/internal/ButtonClickListener.java

/**
 * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 * 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:
 *         Florian Pirchner - Initial implementation
 */
package org.eclipse.osbp.runtime.web.vaadin.databinding.model.internal;

import java.util.Date;

import org.eclipse.core.databinding.property.IProperty;
import org.eclipse.core.databinding.property.ISimplePropertyListener;
import org.eclipse.core.databinding.property.NativePropertyListener;

import com.vaadin.ui.Button;
import com.vaadin.ui.Button.ClickEvent;

// TODO: Auto-generated Javadoc
/**
 * The listener interface for receiving buttonClick events. The class that is
 * interested in processing a buttonClick event implements this interface, and
 * the object created with that class is registered with a component using the
 * component's <code>addButtonClickListener</code> method. When
 * the buttonClick event occurs, that object's appropriate
 * method is invoked.
 *
 * @see #buttonClick(ClickEvent)
 */
@SuppressWarnings("serial")
public class ButtonClickListener extends NativePropertyListener implements
		Button.ClickListener {

	/** The last activation. */
	private long lastActivation;

	/**
	 * Instantiates a new button click listener.
	 *
	 * @param property
	 *            the property
	 * @param listener
	 *            the listener
	 */
	public ButtonClickListener(IProperty property,
			ISimplePropertyListener listener) {
		super(property, listener);
	}

	/* (non-Javadoc)
	 * @see org.eclipse.core.databinding.property.NativePropertyListener#doAddTo(java.lang.Object)
	 */
	protected void doAddTo(Object source) {
		if (source instanceof Button) {
			Button notifier = (Button) source;
			notifier.addClickListener(this);
		}
	}

	/* (non-Javadoc)
	 * @see org.eclipse.core.databinding.property.NativePropertyListener#doRemoveFrom(java.lang.Object)
	 */
	protected void doRemoveFrom(Object source) {
		if (source instanceof Button) {
			Button notifier = (Button) source;
			notifier.removeClickListener(this);
		}
	}

	/* (non-Javadoc)
	 * @see com.vaadin.ui.Button.ClickListener#buttonClick(com.vaadin.ui.Button.ClickEvent)
	 */
	@Override
	public void buttonClick(ClickEvent event) {
		// on button click, just send the current time in ms to the receiver
		lastActivation = new Date().getTime();
		fireChange(lastActivation, null);
	}

	/**
	 * Returns the time of the last activation.
	 *
	 * @return the last activation
	 */
	public long getLastActivation() {
		return lastActivation;
	}

}