org.eclipse.osbp.vaaclipse.presentation/src/org/eclipse/osbp/vaaclipse/widgets/TwoStateToolbarButton.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 java.util.ArrayList;
import java.util.List;

/**
 * @author rushan
 *
 */
public class TwoStateToolbarButton extends ToolbarButtonBase {
	private String primaryStyle;
	private String selectedStyle;

	private boolean switchOn = false;
	private boolean switchStateByUserClickEnabled = true;
	private List<ClickListener> userListeners = new ArrayList<ClickListener>();

	public TwoStateToolbarButton() {
		this("Blank", null);
	}

	public TwoStateToolbarButton(String label, String iconURI) {

		super(label, iconURI);

		setPrimaryStyle("vaaclipsebutton");
		setSelectedStyle("pushed");

		setCheckedState(false);

		super.addClickListener(new ClickListener() {

			public void buttonClick(ClickEvent event) {
				if (switchStateByUserClickEnabled) {
					setCheckedState(!switchOn);

					for (ClickListener l : userListeners) {
						l.buttonClick(event);
					}
				}
			}
		});
	}

	public boolean getCheckedState() {
		return switchOn;
	}

	public void setCheckedState(boolean switchOn) {
		if (switchOn) {
			addStyleName(selectedStyle);
		} else {
			removeStyleName(selectedStyle);
		}

		this.switchOn = switchOn;
	}

	@Override
	public void addListener(ClickListener listener) {
		this.userListeners.add(listener);
	}

	public boolean isSwitchStateByUserClickEnabled() {
		return switchStateByUserClickEnabled;
	}

	public void setSwitchStateByUserClickEnabled(
			boolean switchStateByUserClickEnabled) {
		this.switchStateByUserClickEnabled = switchStateByUserClickEnabled;
	}

	public String getPrimaryStyle() {
		return primaryStyle;
	}

	public void setPrimaryStyle(String primaryStyle) {
		removePrimaryStyle();
		this.primaryStyle = primaryStyle;
		this.addStyleName(this.primaryStyle);
	}

	public void removePrimaryStyle() {
		if (this.primaryStyle != null)
			this.removeStyleName(this.primaryStyle);
	}

	public String getSelectedStyle() {
		return selectedStyle;
	}

	public void setSelectedStyle(String selectedStyle) {
		if (this.switchOn)
			this.removeStyleName(this.selectedStyle);
		this.selectedStyle = selectedStyle;
		if (this.switchOn)
			this.addStyleName(this.selectedStyle);
	}
}