org.eclipse.osbp.utils.ui/src/org/eclipse/osbp/utils/vaadin/ToogleButtonGroup.java

/**
 *                                                                            
 *  Copyright (c) 2011, 2016 - 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:                                                      
 * 	   Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
 * 
 */
 package org.eclipse.osbp.utils.vaadin;

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

public class ToogleButtonGroup implements Button.ClickListener {

	private static final long serialVersionUID = 2979031557232247622L;

	public static class ToolButton extends Button {
		private static final long serialVersionUID = 5343059734182170255L;

		public ToolButton(String name, String styleName) {
			this(name, styleName, true);
		}

		public ToolButton(String name, String styleName, Button.ClickListener clickListener) {
			super(name, clickListener);
			addStyleName("C-TOOLBUTTON");
			addStyleName(styleName);
		}

		public ToolButton(String name, String styleName, boolean enabled) {
			super(name);
			addStyleName("C-TOOLBUTTON");
			addStyleName(styleName);
			setEnabled(enabled);
		}
	}

	public static class ToggleButtonDefinition {
		
		protected final String fText;
		protected final Object fId;
		protected final String fStyleName;
		protected final Button.ClickListener fClickListener;
		protected Button fButton;
		
		public ToggleButtonDefinition(String text, Object id, String styleName, Button.ClickListener clickListener) {
			fText = text;
			fId = id;
			fStyleName = styleName;
			fClickListener = clickListener;
		}
	}

	private final ToggleButtonDefinition[] fToggleButtons;
	
	public ToogleButtonGroup(String groupStyleName, ToggleButtonDefinition... toggleButtons) {
		fToggleButtons = toggleButtons;
		for	(int i = 0; i < toggleButtons.length; i++) {
			toggleButtons[i].fButton = new ToolButton(toggleButtons[i].fText, toggleButtons[i].fStyleName, toggleButtons[i].fClickListener);
			toggleButtons[i].fButton.addClickListener(this);
			toggleButtons[i].fButton.addStyleName(groupStyleName);
			toggleButtons[i].fButton.addStyleName("C-TOGGLE-GROUP");
			if	(i == 0) {
				toggleButtons[i].fButton.addStyleName("C-FIRST");
			}
			else if (i == toggleButtons.length-1) {
				toggleButtons[i].fButton.addStyleName("C-LAST");
			}
		}
	}
	
	public void addToParent(ComponentContainer parent) {
		for	(ToggleButtonDefinition toggleButton : fToggleButtons) {
			parent.addComponent(toggleButton.fButton);
		}
	}

	public void fireClick(Object id) {
		for	(ToggleButtonDefinition toggleButton : fToggleButtons) {
			if	(id.equals(toggleButton.fId)) {
				ClickEvent event = new ClickEvent(toggleButton.fButton);
				for	(Object clickListener : toggleButton.fButton.getListeners(ClickEvent.class)) {
					if	(clickListener instanceof Button.ClickListener) {
						((Button.ClickListener)clickListener).buttonClick(event);
					}
				}
			}
		}
	}

	public void fireActive(Object id) {
		for	(ToggleButtonDefinition toggleButton : fToggleButtons) {
			if	(id.equals(toggleButton.fId)) {
				toggleButton.fButton.addStyleName("C-ACTIVE");
			}
			else {
				toggleButton.fButton.removeStyleName("C-ACTIVE");
			}
		}
	}
	
	@Override
	public void buttonClick(ClickEvent event) {
		for	(ToggleButtonDefinition toggleButton : fToggleButtons) {
			if	(event.getSource().equals(toggleButton.fButton)) {
				fireActive(toggleButton.fId);
			}
		}
	}
}