tabular-data-mainbox-widget/src/main/java/org/gcube/portlets/user/td/mainboxwidget/client/MainBox.java

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

import java.util.ArrayList;

import org.gcube.portlets.user.td.mainboxwidget.client.tdx.TDXPanel;
import org.gcube.portlets.user.td.widgetcommonevent.client.event.DataViewActiveEvent;
import org.gcube.portlets.user.td.widgetcommonevent.shared.dataview.DataView;
import org.gcube.portlets.user.td.widgetcommonevent.shared.dataview.TabularResourceDataView;

import com.allen_sauer.gwt.log.client.Log;
import com.google.gwt.event.logical.shared.SelectionEvent;
import com.google.gwt.event.logical.shared.SelectionHandler;
import com.google.gwt.user.client.ui.Widget;
import com.google.web.bindery.event.shared.EventBus;
import com.sencha.gxt.widget.core.client.TabItemConfig;
import com.sencha.gxt.widget.core.client.TabPanel;
import com.sencha.gxt.widget.core.client.event.BeforeCloseEvent;
import com.sencha.gxt.widget.core.client.event.BeforeCloseEvent.BeforeCloseHandler;

/**
 * 
 * @author giancarlo email: <a
 *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
 *
 */
public class MainBox extends TabPanel {

	protected EventBus eventBus;
	protected MainBoxPanel mainBoxPanel;
	protected ArrayList<TDXPanel> tdxPanelList;

	public MainBox(String name, EventBus eventBus, MainBoxPanel mainBoxPanel) {
		super();
		Log.debug("Create MainBox");
		setId(name);
		this.eventBus = eventBus;
		this.mainBoxPanel = mainBoxPanel;
		init();
		

	}
	
	protected void init(){
		setBodyBorder(false);
		setBorders(false);
		setAnimScroll(true);
		setTabScroll(true);
		setCloseContextMenu(true);

		tdxPanelList = new ArrayList<TDXPanel>();
		// setResizeTabs(true);
		addSelectionHandler(new SelectionHandler<Widget>() {
			
			@Override
			public void onSelection(SelectionEvent<Widget> event) {
				Widget widget=event.getSelectedItem();
				if(widget instanceof TDXPanel){
					TDXPanel tdxPanel=(TDXPanel) widget;
					TabularResourceDataView tabularResourceDataView=tdxPanel.getTabularResourceDataView();
					DataViewActiveEvent dataViewActiveEvent=new DataViewActiveEvent(tabularResourceDataView);
					eventBus.fireEvent(dataViewActiveEvent);
				} else {
					
				}
			}
		});
	}

	public void startTabs() {
		Log.debug("Start MainBox Tabs");

	}

	public void openTDXTab(DataView dataView) {
		if (dataView instanceof TabularResourceDataView) {
			TabularResourceDataView tabularResourceDataView = (TabularResourceDataView) dataView;
			Log.debug("Open TDX Tab");
			if (tdxPanelList == null) {
				tdxPanelList = new ArrayList<TDXPanel>();
			}
			addTDXPanel(tabularResourceDataView);
		}

	}

	// Close
	public void closePanel() {
		Log.debug("Close TDX Tabs");
		if (tdxPanelList != null) {
			for (TDXPanel tdxPanel : tdxPanelList) {
				remove(tdxPanel);

			}
			tdxPanelList.clear();

		}

	}

	//

	public void updateTabs(DataView dataView) {
		try {
			Log.debug("Update MainBox Tabs");

			if (dataView instanceof TabularResourceDataView) {
				TabularResourceDataView tabularResourceDataView = (TabularResourceDataView) dataView;
				boolean found=false;
				
				for (TDXPanel tdxPanel : tdxPanelList) {
					if(tdxPanel.isDataViewRequest(tabularResourceDataView)){
						tdxPanel.update(tabularResourceDataView);
						found=true;
						break;
					}
				}
				if(!found){
					addTDXPanel(tabularResourceDataView);
				}
				
			}
			forceLayout();
		} catch (Throwable e) {
			Log.error("Error in MainBox: " + e.getLocalizedMessage());
			e.printStackTrace();
		}
	}

	

	protected void addTDXPanel(TabularResourceDataView tabularResourceDataView) {
		for (TDXPanel tdxPanel : tdxPanelList) {
			if (tdxPanel.getTabularResourceDataView().getTrId().getId()
					.compareTo(tabularResourceDataView.getTrId().getId()) == 0) {
				tdxPanel.update(tabularResourceDataView);
				setActiveWidget(tdxPanel);
				return;
			}
		}

		TabItemConfig tdxPanelItemConf = new TabItemConfig(
				tabularResourceDataView.getTrId().getId(), true);

		final TDXPanel tdxPanel = new TDXPanel(eventBus);
		tdxPanel.open(tabularResourceDataView);
		tdxPanelList.add(tdxPanel);
		add(tdxPanel, tdxPanelItemConf);
		
		addBeforeCloseHandler(new BeforeCloseHandler<Widget>() {

			public void onBeforeClose(BeforeCloseEvent<Widget> event) {
				if (tdxPanel == event.getItem()) {
					remove(tdxPanel);
					tdxPanelList.remove(tdxPanel);
				}

			}

		});
		setActiveWidget(tdxPanel);
	};

}