SimpleMatePanel.java

package org.iplantc.de.client.views.panels;

import org.iplantc.de.client.ClientAction;
import org.iplantc.de.client.I18N;
import org.iplantc.de.client.formatters.AddQuotesFormatter;
import org.iplantc.de.client.metadata.property.Property;
import org.iplantc.de.client.models.File;
import org.iplantc.de.client.utils.ComponentValueTable;
import org.iplantc.de.client.utils.ComponentValueTableValidator;
import org.iplantc.de.client.utils.ValidatorHelper;
import org.iplantc.de.client.validator.IPlantValidator;
import org.iplantc.de.client.views.FileSelector;

import com.extjs.gxt.ui.client.event.BaseEvent;
import com.extjs.gxt.ui.client.event.Events;
import com.extjs.gxt.ui.client.event.Listener;
import com.extjs.gxt.ui.client.widget.ContentPanel;
import com.extjs.gxt.ui.client.widget.Label;
import com.extjs.gxt.ui.client.widget.VerticalPanel;
import com.extjs.gxt.ui.client.widget.form.CheckBox;

public class SimpleMatePanel extends VerticalPanel
{
	protected ComponentValueTable tblComponentVals;
	protected FileSelector fileSelector;
	protected ContentPanel pnlMate;
	
	private CheckBox cbMateSelection;
	private IPlantValidator validatorFileSelect;
	private final static String fileReadId = "read2FileId";

	public SimpleMatePanel(final Property property, final ComponentValueTable tblComponentVals)
	{
		this.tblComponentVals = tblComponentVals;

		init(property);

		initValidators();
		
		initInstanceVariables(property);

		addSupportingComponentVals();

		compose(property);

		updateComponentValueTable();
		ComponentValueTableValidator.validate(tblComponentVals);
	}

	private void init(final Property property)
	{
		setSpacing(5);		
	}

	protected void initInstanceVariables(final Property property)
	{
		fileSelector = new FileSelector(new ClientAction()
		{
			@Override
			public void execute()
			{
				updateComponentValueTable();
				ComponentValueTableValidator.validate(tblComponentVals);
			}
		});

		initMatePanel();
		initMateCheckbox(property);
	}

	private void initMatePanel()
	{
		pnlMate = new ContentPanel();

		pnlMate.setHeaderVisible(false);

		pnlMate.disable();
	}

	protected void addSupportingComponentVals()
	{
		File file = fileSelector.getSelectedFile();
		String idFile = (file == null) ? "" : file.getId();

		tblComponentVals.setValue(fileReadId, idFile);
		tblComponentVals.setFormatter(fileReadId, new AddQuotesFormatter());
	}

	protected void updateComponentValueTable()
	{
		tblComponentVals.setValue(cbMateSelection.getId(), cbMateSelection.getValue().toString());

		File file = fileSelector.getSelectedFile();

		String idFile = (file == null) ? "" : file.getId();
		tblComponentVals.setValue(fileReadId, idFile);
	}

	protected void updateValidators(boolean enabled)
	{
		if(enabled)
		{
			//set our validator if the user checks the 'has mate pair' checkbox
			tblComponentVals.setValidator(fileReadId, validatorFileSelect);
		}
		else
		{
			//if the user does not have a mate pair, we do not need to validate
			tblComponentVals.clearValidator(fileReadId);			
		}
	}

	private void initMateCheckbox(final Property property)
	{
		cbMateSelection = new CheckBox();
		cbMateSelection.setId(property.getId());
		cbMateSelection.setBoxLabel(property.getName());

		cbMateSelection.addListener(Events.Change, new Listener<BaseEvent>()
		{
			public void handleEvent(final BaseEvent be)
			{
				boolean checked = cbMateSelection.getValue();

				pnlMate.setEnabled(checked);
				updateValidators(checked);
				updateComponentValueTable();
				ComponentValueTableValidator.validate(tblComponentVals);
			}
		});
	}

	protected void initValidators()
	{
		String json = "{\"name\" : \"Mate pair file\", \"required\" : true}";

		validatorFileSelect = new IPlantValidator(ValidatorHelper.buildValidator(json));
	}

	protected void composeMatePanel()
	{
		VerticalPanel panelInner = new VerticalPanel();

		panelInner.setSpacing(5);
		panelInner.setWidth(400);
		panelInner.addStyleName("accordianbody");

		panelInner.add(new Label(I18N.DISPLAY.matePairSelection() + ":"));
		panelInner.add(fileSelector);
		pnlMate.add(panelInner);
	}

	private void compose(final Property property)
	{
		add(cbMateSelection);

		composeMatePanel();

		add(pnlMate);
	}
}