package org.gcube.portlets.user.td.client;


import org.gcube.portlets.user.td.client.ribbon.TabularDataRibbon;
import org.gcube.portlets.user.td.mainboxwidget.client.MainBoxPanel;
import org.gcube.portlets.user.td.toolboxwidget.client.ToolBoxPanel;

import com.allen_sauer.gwt.log.client.Log;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.web.bindery.event.shared.EventBus;
import com.sencha.gxt.core.client.util.Margins;
import com.sencha.gxt.widget.core.client.TabPanel;
import com.sencha.gxt.widget.core.client.container.BorderLayoutContainer;
import com.sencha.gxt.widget.core.client.container.BorderLayoutContainer.BorderLayoutData;
import com.sencha.gxt.widget.core.client.container.MarginData;
import com.sencha.gxt.widget.core.client.container.Viewport;

/**
 * 
 * @author "Giancarlo Panichi" <a
 *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
 * 
 */
public class TabularDataPortlet implements EntryPoint {

	private static final String JSP_TAG_ID = "tdp";


	// Main Panel
	private static BorderLayoutContainer mainPanelLayout;

	
	/**
	 * {@inheritDoc}
	 */
	public void onModuleLoad() {

		/*
		 * Install an UncaughtExceptionHandler which will produce
		 * <code>FATAL</code> log messages
		 */
		Log.setUncaughtExceptionHandler();

		// use deferred command to catch initialization exceptions in
		// onModuleLoad2
		Scheduler.get().scheduleDeferred(new ScheduledCommand() {
			public void execute() {
				loadMainPanel();
			}
		});

	}


	private void loadMainPanel() {		
		TabularDataController controller = new TabularDataController();
		EventBus eventBus = controller.getEventBus();

		// Layout
		mainPanelLayout = new BorderLayoutContainer();
		mainPanelLayout.setId("mainPanelLayout");
		mainPanelLayout.setBorders(true);

		// Ribbon Menu
		TabularDataRibbon tabularDataRibbon = new TabularDataRibbon(eventBus);
		TabPanel ribbonBarPanel = tabularDataRibbon.getContainer();

		BorderLayoutData ribbonBarData = new BorderLayoutData(105);
		ribbonBarData.setMargins(new Margins(5));
		ribbonBarData.setCollapsible(false);
		ribbonBarData.setSplit(false);

		mainPanelLayout.setNorthWidget(ribbonBarPanel, ribbonBarData);

		// MainBox Panel
		final MainBoxPanel mainBoxPanel = new MainBoxPanel("MainBoxPanel",
				eventBus);
		controller.setMainBoxPanel(mainBoxPanel);
		
		MarginData gridData = new MarginData();
		mainPanelLayout.setCenterWidget(mainBoxPanel, gridData);
		
		// ToolBox Panel
		final ToolBoxPanel toolBoxPanel = new ToolBoxPanel("ToolBoxPanel", eventBus);
		
		BorderLayoutData westData = new BorderLayoutData(310);
		westData.setCollapsible(true);
		westData.setSplit(false);
		westData.setFloatable(false);
		westData.setCollapseMini(true);
		westData.setMargins(new Margins(0, 5, 0, 5));
		westData.setCollapseHidden(true);
		
		
		mainPanelLayout.setWestWidget(toolBoxPanel, westData);
		toolBoxPanel.expand();
		toolBoxPanel.enable();

		controller.setToolBoxPanel(toolBoxPanel);
		controller.setWestData(westData);

		bind(mainPanelLayout);
		// menu(gridPanel);
		controller.restoreUISession();
	}

	private void bind(BorderLayoutContainer mainWidget) {
		try {
			RootPanel root = RootPanel.get(JSP_TAG_ID);
			Log.info("Root Panel: " + root);
			if (root == null) {
				Log.info("Div with id " + JSP_TAG_ID
						+ " not found, starting in dev mode");
				Viewport viewport = new Viewport();
				viewport.setWidget(mainWidget);
				viewport.onResize();
				RootPanel.get().add(viewport);
			} else {
				Log.info("Application div with id " + JSP_TAG_ID
						+ " found, starting in portal mode");
				PortalViewport viewport = new PortalViewport();
				Log.info("Created Viewport");
				viewport.setEnableScroll(false);
				viewport.setWidget(mainWidget);
				Log.info("Set Widget");
				Log.info("getOffsetWidth(): " + viewport.getOffsetWidth());
				Log.info("getOffsetHeight(): " + viewport.getOffsetHeight());
				viewport.onResize();
				root.add(viewport);
				Log.info("Added viewport to root");
			}
		} catch (Exception e) {
			e.printStackTrace();
			Log.error("Error in attach viewport:" + e.getLocalizedMessage());
		}
	}

}