org.eclipse.osbp.vaaclipse.presentation/src/org/eclipse/osbp/vaaclipse/widgets/ToolbarButtonBase.java

/*******************************************************************************
 * Copyright (c) 2012 Rushan R. Gilmullin and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0 
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 * 
 * Contributors:
 *     Rushan R. Gilmullin - initial API and implementation
 *******************************************************************************/

package org.eclipse.osbp.vaaclipse.widgets;

import org.eclipse.osbp.vaaclipse.publicapi.resources.ResourceHelper;

import com.vaadin.server.Resource;
import com.vaadin.ui.Button;
import com.vaadin.ui.Component;

/**
 * @author rushan
 *
 */
public class ToolbarButtonBase extends Button {
	public ToolbarButtonBase() {
		this("Blank", null);
	}

	public ToolbarButtonBase(String label, String iconURI) {
		this.setSizeUndefined();

		setLabelAndIcon(label, iconURI);

		// hack
		super.addClickListener(new ClickListener() {

			public void buttonClick(ClickEvent event) {
				// change focus
				Component parent = event.getButton().getParent();
				while (parent != null) {
					if (parent instanceof Component.Focusable) {
						((Component.Focusable) parent).focus();
						break;
					} else {
						parent = parent.getParent();
					}
				}
			}
		});
	}

	public void setLabelAndIcon(String label, String iconURI) {

		// clear
		this.setCaption(null);
		this.setIcon(null);
		this.removeStyleName("icononly");
		this.removeStyleName("textonly");

		// setup icon and text
		if (iconURI == null && label == null)
			label = "Blank";

		if (iconURI != null) {
			Resource icon = ResourceHelper.createResource(iconURI);
			this.setIcon(icon);
		}

		if (label != null) {
			this.setCaption(label);
		}

		if (iconURI == null && label != null)
			this.addStyleName("textonly");
		else if (iconURI != null && label == null)
			this.addStyleName("icononly");
	}

	public void setIconURI(String iconURI) {

		// clear
		this.setIcon(null);

		// setup icon and text
		if (iconURI != null) {
			Resource icon = ResourceHelper.createResource(iconURI);
			this.setIcon(icon);
		}
	}
}