EDIT

package eu.etaxonomy.cdm.vaadin.view;

import com.vaadin.annotations.AutoGenerated;

import com.vaadin.navigator.View;

import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

import com.vaadin.ui.Alignment;

import com.vaadin.ui.Button;

import com.vaadin.ui.Button.ClickEvent;

import com.vaadin.ui.Button.ClickListener;

import com.vaadin.ui.CustomComponent;

import com.vaadin.ui.Panel;

import com.vaadin.ui.TextArea;

import com.vaadin.ui.UI;

import com.vaadin.ui.VerticalLayout;

import eu.etaxonomy.cdm.vaadin.ui.NavigatorTestUI;

public class NaviTestView extends CustomComponent implements View {

	/*- VaadinEditorProperties={"grid":"RegularGrid,20","showGrid":true,"snapToGrid":true,"snapToObject":true,"movingGuides":false,"snappingDistance":10} */

	@AutoGenerated

	private VerticalLayout mainLayout;

	@AutoGenerated

	private Panel panel;

	@AutoGenerated

	private VerticalLayout panelVLayout;

	@AutoGenerated

	private Button button;

	@AutoGenerated

	private TextArea textArea;

	/**

	 * The constructor should first build the main layout, set the

	 * composition root and then do any custom initialization.

	 *

	 * The constructor will not be automatically regenerated by the

	 * visual editor.

	 */

	public NaviTestView() {

		buildMainLayout();

		setCompositionRoot(mainLayout);		

		button.addClickListener(new ClickListener() {

			@Override

			public void buttonClick(ClickEvent event) {

				UI.getCurrent().getNavigator().navigateTo(NavigatorTestUI.SECOND_VIEW);

			}

		});

	}

	public void setText(String text) {

		textArea.setValue(text);

	}

	public void removeButton() {

		panelVLayout.removeComponent(button);

	}

	@Override

	public void enter(ViewChangeEvent event) {

		// TODO Auto-generated method stub

	}

	@AutoGenerated

	private VerticalLayout buildMainLayout() {

		// common part: create layout

		mainLayout = new VerticalLayout();

		mainLayout.setImmediate(false);

		mainLayout.setWidth("100%");

		mainLayout.setHeight("100%");

		mainLayout.setMargin(true);

		mainLayout.setSpacing(true);

		// top-level component properties

		setWidth("100.0%");

		setHeight("100.0%");

		// panel

		panel = buildPanel();

		mainLayout.addComponent(panel);

		mainLayout.setComponentAlignment(panel, new Alignment(48));

		return mainLayout;

	}

	@AutoGenerated

	private Panel buildPanel() {

		// common part: create layout

		panel = new Panel();

		panel.setImmediate(false);

		panel.setWidth("242px");

		panel.setHeight("162px");

		// panelVLayout

		panelVLayout = buildPanelVLayout();

		panel.setContent(panelVLayout);

		return panel;

	}

	@AutoGenerated

	private VerticalLayout buildPanelVLayout() {

		// common part: create layout

		panelVLayout = new VerticalLayout();

		panelVLayout.setImmediate(false);

		panelVLayout.setWidth("100.0%");

		panelVLayout.setHeight("100.0%");

		panelVLayout.setMargin(false);

		// textArea

		textArea = new TextArea();

		textArea.setImmediate(false);

		textArea.setWidth("214px");

		textArea.setHeight("-1px");

		panelVLayout.addComponent(textArea);

		panelVLayout.setComponentAlignment(textArea, new Alignment(48));

		// button

		button = new Button();

		button.setCaption("Click Me to navigate to next view");

		button.setImmediate(true);

		button.setWidth("-1px");

		button.setHeight("-1px");

		panelVLayout.addComponent(button);

		panelVLayout.setComponentAlignment(button, new Alignment(48));

		return panelVLayout;

	}

}