org.eclipse.osbp.vaaclipse.addons.softwarefactory/src/org/eclipse/osbp/vaaclipse/addons/softwarefactory/welcome/WelcomeView.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.vaaclipse.addons.softwarefactory.welcome;

import javax.inject.Inject;

import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.e4.ui.model.application.MApplication;
import org.eclipse.osbp.preferences.ProductConfiguration;

import com.vaadin.event.LayoutEvents.LayoutClickEvent;
import com.vaadin.event.LayoutEvents.LayoutClickListener;
import com.vaadin.shared.MouseEventDetails.MouseButton;
import com.vaadin.shared.ui.label.ContentMode;
import com.vaadin.ui.AbstractComponent;
import com.vaadin.ui.Label;
import com.vaadin.ui.RichTextArea;
import com.vaadin.ui.VerticalLayout;

public class WelcomeView implements LayoutClickListener {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private int clickHit = 0;
	private boolean editMode = false;
	private AbstractComponent label = null;
	private VerticalLayout parent;

	@Inject
	public WelcomeView(VerticalLayout parent, IEclipseContext context, MApplication app) {
		this.parent = parent;
		parent.addStyleName("os-welcome");
		parent.addLayoutClickListener(this);
		renderView(parent);
	}

	private void renderView(VerticalLayout parent) {
		if (label != null) {
			parent.removeComponent(label);
		}
		if (editMode) {
			label = new RichTextArea();
		} else {
			label = new Label("", ContentMode.HTML);
		}
		label.setSizeFull();
		parent.addComponent(label);
		parent.setMargin(true);
		if (editMode) {
			((RichTextArea) label).setValue(ProductConfiguration.getWelcomeScreen());
		} else {
			((Label) label).setValue(ProductConfiguration.getWelcomeScreen());
		}
	}

	@Override
	public void layoutClick(LayoutClickEvent event) {
		if (1 < event.getRelativeX() && event.getRelativeX() < 50 && 1 < event.getRelativeY()
				&& event.getRelativeY() < 50 && event.getButton() == MouseButton.RIGHT && event.isAltKey()
				&& event.isCtrlKey()) {
			clickHit++;
		}
		if (clickHit >= 5) {
			clickHit = 0;
			if (editMode) {
				ProductConfiguration.setWelcomeScreen(((RichTextArea) label).getValue());
			}
			editMode ^= true;
			renderView(parent);
		}
	}
}