ProductSelectorWindow.java

package com.thingtrack.konekti.view.web.form.selector;

import java.io.Serializable;

import org.osgi.framework.BundleContext;
import org.osgi.framework.FrameworkUtil;
import org.osgi.framework.ServiceReference;

import com.vaadin.annotations.AutoGenerated;
import com.vaadin.event.ItemClickEvent;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.Button;
import com.vaadin.ui.Component;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.Window;

import com.thingtrack.konekti.domain.Product;
import com.thingtrack.konekti.service.api.ProductService;
import com.thingtrack.konekti.view.addon.data.BindingSource;
import com.thingtrack.konekti.view.addon.ui.DataGridView;
import com.thingtrack.konekti.view.kernel.IWorkbenchContext;
import com.vaadin.event.ItemClickEvent.ItemClickListener;

@SuppressWarnings("serial")
public class ProductSelectorWindow extends Window {

	@AutoGenerated
	private VerticalLayout mainLayout;
	@AutoGenerated
	private HorizontalLayout hlToolButtons;
	@AutoGenerated
	private Button btnCancel;
	@AutoGenerated
	private Button btnSelect;
	@AutoGenerated
	private DataGridView dgProduct;

	/*- VaadinEditorProperties={"grid":"RegularGrid,20","showGrid":true,"snapToGrid":true,"snapToObject":true,"movingGuides":false,"snappingDistance":10} */
	
	private Window parentWindow;	
	private Product domainEntity;
	
	// selector service
	private ProductService productService;
	
	// selector datasource
	private BindingSource<Product> bsProduct = new BindingSource<Product>(Product.class, 0);
		
	private DialogResult dialogResultSelected;
	 
	private IWorkbenchContext context;
	
	public enum DialogResult {
		SELECT, 
		CANCEL
	}
	
	private static final boolean ACTIVE = true;
	
	/**
	 * 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 ProductSelectorWindow(IWorkbenchContext context, final Window parentWindow, Product entity, final CloseWindowDialogListener listener) {
		buildMainLayout();
		setContent(mainLayout);
	
		this.context = context;
		this.parentWindow = parentWindow;
		this.domainEntity = entity;
		
		center();
		setModal(true);
		setResizable(false);
		setClosable(false);
		setSizeUndefined();
		
		this.addListener(new Window.CloseListener() {	  
			  public void windowClose(Window.CloseEvent  e) {
				  if (listener != null) {					  
					  listener.windowDialogClose(new CloseWindowDialogEvent(getWindow(), dialogResultSelected, domainEntity));
					  
				  }
				  
		      }
		  });
		
		dgProduct.addListener(new ItemClickListener() {			
			@Override
			public void itemClick(ItemClickEvent event) {
				if (event.getItemId() != null && event.isDoubleClick()) {
					btnSelect_Click(null);
				}
				
			}
		});
		
		// get business service
		getServices();
		
		
		// initialize container gridview
		initView();
		
		// refresh grid container
		refreshBindindSource();
		
		// select container selected
		if (entity != null)
			dgProduct.select(entity);
		
	    this.parentWindow.addWindow(this);
			    
	}

	private void initView() {
		try {	
			dgProduct.setImmediate(true);		
			dgProduct.setSelectable(true);
			dgProduct.setFilterBarVisible();
			
			bsProduct.addNestedContainerProperty("productType.description");
			bsProduct.addNestedContainerProperty("productSupplier.description");
			
			dgProduct.setBindingSource(bsProduct);			
			
			dgProduct.setVisibleColumns(new String[] { "productSupplier.description", "productType.description", "code", "name", "version" } );       
			dgProduct.setColumnHeaders(new String[] { "Proveedor", "Tipo", "Codigo", "Nombre", "Version" } );
		}
		catch(Exception e) {
			throw new RuntimeException("¡Error al crear el grid de Productos!", e);
		}
	}
	
	private void refreshBindindSource() {
		try {		
			bsProduct.removeAllItems();
			bsProduct.addAll(productService.getAll(context.getUser(), ACTIVE));
			
		} catch (IllegalArgumentException e) {
			throw new RuntimeException("¡No se pudo refrescar los productos!", e);
		} catch (Exception e) {
			throw new RuntimeException("¡No se pudo refrescar los productos!", e);
		}		
	}
	
	@SuppressWarnings({ "rawtypes", "unchecked" })
	private void getServices() {
		try {
			BundleContext bundleContext = FrameworkUtil.getBundle(ProductSelectorWindow.class).getBundleContext();
			
			ServiceReference productServiceReference = bundleContext.getServiceReference(ProductService.class.getName());
			this.productService = ProductService.class.cast(bundleContext.getService(productServiceReference));
			
		}
		catch (Exception e) {
			e.getMessage();
			
		}
		
	}
	
	
	/**
	  * Select result button
	 */
	 public void btnSelect_Click (Button.ClickEvent event) {
		domainEntity = bsProduct.getItemId();
		
		dialogResultSelected = DialogResult.SELECT;
		this.parentWindow.removeWindow(this);
		
	 }
	 
     /**
	  * Cancel result button
	 */
	 public void btnCancel_Click (Button.ClickEvent event) {	
		dialogResultSelected = DialogResult.CANCEL;
		this.parentWindow.removeWindow(this);
		
	 }
	 
	@AutoGenerated
	private VerticalLayout buildMainLayout() {
		// common part: create layout
		mainLayout = new VerticalLayout();
		mainLayout.setImmediate(false);
		mainLayout.setWidth("700px");
		mainLayout.setHeight("350px");
		mainLayout.setMargin(false);
		
		// top-level component properties
		setWidth("500px");
		setHeight("250px");
		
		// dgHole
		dgProduct = new DataGridView();
		dgProduct.setImmediate(false);
		dgProduct.setWidth("100.0%");
		dgProduct.setHeight("100.0%");
		mainLayout.addComponent(dgProduct);
		mainLayout.setExpandRatio(dgProduct, 1.0f);
		
		// hlToolButtons
		hlToolButtons = buildHlToolButtons();
		mainLayout.addComponent(hlToolButtons);
		
		return mainLayout;
	}

	@AutoGenerated
	private HorizontalLayout buildHlToolButtons() {
		// common part: create layout
		hlToolButtons = new HorizontalLayout();
		hlToolButtons.setImmediate(false);
		hlToolButtons.setWidth("100.0%");
		hlToolButtons.setHeight("-1px");
		hlToolButtons.setMargin(false);
		hlToolButtons.setSpacing(true);
		
		// btnSelect
		btnSelect = new Button("Seleccionar", this, "btnSelect_Click");
		btnSelect.setCaption("Seleccionar");
		btnSelect.setImmediate(true);
		btnSelect.setWidth("-1px");
		btnSelect.setHeight("-1px");
		hlToolButtons.addComponent(btnSelect);
		hlToolButtons.setExpandRatio(btnSelect, 1.0f);
		hlToolButtons.setComponentAlignment(btnSelect, new Alignment(6));
		
		// btnCancel
		btnCancel = new Button("Cancelar", this, "btnCancel_Click");		
		btnCancel.setCaption("Cancelar");
		btnCancel.setImmediate(true);
		btnCancel.setWidth("-1px");
		btnCancel.setHeight("-1px");
		hlToolButtons.addComponent(btnCancel);
		hlToolButtons.setComponentAlignment(btnCancel, new Alignment(6));
		
		return hlToolButtons;
	}

    public interface CloseWindowDialogListener extends Serializable {
		  public void windowDialogClose(CloseWindowDialogEvent event);
	}
	    
	public class CloseWindowDialogEvent extends CloseEvent {
		private final DialogResult dialogResult;
		private Product domainEntity;
			  
		public CloseWindowDialogEvent(Component source) {
			super(source);
			this.dialogResult = DialogResult.CANCEL;
		}
		
		public CloseWindowDialogEvent(Component source, DialogResult dialogResult, Product domainEntity) {
			super(source);
			
			this.dialogResult = dialogResult;
			this.domainEntity = domainEntity;
			
		}
		
	    /**
        * Gets the dialog window result
        * 
        * @return the Source of the event.
        */
		public DialogResult getDialogResult() {
			return this.dialogResult;
		}
		
	    /**
        * Gets the dialog window result
        * 
        * @return the Source of the event.
        */
		public Product getDomainEntity() {
			return this.domainEntity;
			
		}
		
	 }
}