tabular-data-column-widget/src/main/java/org/gcube/portlets/user/td/columnwidget/client/replace/ReplacePanel.java

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

import org.gcube.portlets.user.td.columnwidget.client.progress.ReplaceColumnProgressDialog;
import org.gcube.portlets.user.td.columnwidget.client.resources.ResourceBundle;
import org.gcube.portlets.user.td.columnwidget.client.utils.UtilsGXT3;
import org.gcube.portlets.user.td.gwtservice.client.rpc.TDGWTServiceAsync;
import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
import org.gcube.portlets.user.td.gwtservice.shared.tr.column.ReplaceColumnSession;
import org.gcube.portlets.user.td.widgetcommonevent.shared.CellData;
import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;

import com.allen_sauer.gwt.log.client.Log;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.web.bindery.event.shared.EventBus;
import com.sencha.gxt.cell.core.client.ButtonCell.IconAlign;
import com.sencha.gxt.core.client.util.Margins;
import com.sencha.gxt.widget.core.client.FramedPanel;
import com.sencha.gxt.widget.core.client.button.TextButton;
import com.sencha.gxt.widget.core.client.container.HBoxLayoutContainer;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
import com.sencha.gxt.widget.core.client.container.BoxLayoutContainer.BoxLayoutData;
import com.sencha.gxt.widget.core.client.container.BoxLayoutContainer.BoxLayoutPack;
import com.sencha.gxt.widget.core.client.container.HBoxLayoutContainer.HBoxLayoutAlign;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.VerticalLayoutData;
import com.sencha.gxt.widget.core.client.event.SelectEvent;
import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
import com.sencha.gxt.widget.core.client.form.FieldLabel;
import com.sencha.gxt.widget.core.client.form.TextField;

/**
 * 
 * @author "Giancarlo Panichi" <a
 *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
 * 
 */
public class ReplacePanel extends FramedPanel {
	protected String WIDTH = "500px";
	protected String HEIGHT = "150px";
	protected EventBus eventBus;
	protected TRId trId;
	protected CellData cellData;
	protected ReplaceDialog parent;
	protected ColumnData column;

	protected ReplaceColumnSession replaceColumnSession;

	private TextField value;
	private TextField replaceValue;
	private TextButton btnApply;
	private TextButton btnClose;

	public ReplacePanel(ReplaceDialog parent, TRId trId, CellData cellData,
			EventBus eventBus) {
		this.parent = parent;
		this.cellData = cellData;
		this.trId = trId;
		this.eventBus = eventBus;

		Log.debug("ReplacePanel:[" + trId + ", CellData:" + cellData + "]");
		initPanel();
		retrieveColumn();

	}

	protected void initPanel() {
		setWidth(WIDTH);
		setHeight(HEIGHT);
		setHeaderVisible(false);
		setBodyBorder(false);
	}

	protected void retrieveColumn() {
		TDGWTServiceAsync.INSTANCE.getColumn(trId, cellData.getColumnName(),
				new AsyncCallback<ColumnData>() {

					public void onFailure(Throwable caught) {
						Log.error("Error retrieving column: "
								+ caught.getMessage());
						UtilsGXT3.alert("Error retrieving column",
								caught.getMessage());
					}

					public void onSuccess(ColumnData result) {
						Log.debug("Retrived column: " + result);
						if (result.isViewColumn()) {
							UtilsGXT3
									.info("View Column",
											"You can not replace value on view column for now");
							close();
						} else {
							column = result;
							create();
						}
					}

				});

	}

	protected void create() {
		value = new TextField();
		value.setValue(cellData.getValue());
		value.setReadOnly(true);

		replaceValue = new TextField();

		btnApply = new TextButton("Replace");
		btnApply.setIcon(ResourceBundle.INSTANCE.replace());
		btnApply.setIconAlign(IconAlign.RIGHT);
		btnApply.setTitle("Replace Value");
		btnApply.addSelectHandler(new SelectHandler() {

			public void onSelect(SelectEvent event) {
				Log.debug("Pressed Apply");
				replaceValue();

			}
		});

		btnClose = new TextButton("Close");
		btnClose.setIcon(ResourceBundle.INSTANCE.close());
		btnClose.setIconAlign(IconAlign.RIGHT);
		btnClose.setTitle("Close");
		btnClose.addSelectHandler(new SelectHandler() {

			public void onSelect(SelectEvent event) {
				Log.debug("Pressed Close");
				close();

			}
		});

		HBoxLayoutContainer flowButton = new HBoxLayoutContainer();
		flowButton.setHBoxLayoutAlign(HBoxLayoutAlign.MIDDLE);
		flowButton.setPack(BoxLayoutPack.CENTER);

		flowButton.add(btnApply, new BoxLayoutData(new Margins(2, 4, 2, 4)));
		flowButton.add(btnClose, new BoxLayoutData(new Margins(2, 4, 2, 4)));

		VerticalLayoutContainer v = new VerticalLayoutContainer();
		v.add(new FieldLabel(value, "Value"), new VerticalLayoutData(1, -1));
		v.add(new FieldLabel(replaceValue, "Replace"), new VerticalLayoutData(
				1, -1));
		v.add(flowButton, new VerticalLayoutData(-1, 36,
				new Margins(5, 2, 5, 2)));
		add(v);

	}

	protected void replaceValue() {
		String rValue = replaceValue.getCurrentValue();
		if (rValue == null || rValue.isEmpty()) {
			UtilsGXT3.alert("Attention", "Insert a valid replace value");
		} else {
			callReplaceValue(rValue);
		}

	}

	protected void callReplaceValue(String rValue) {
		replaceColumnSession = new ReplaceColumnSession(
				value.getCurrentValue(), rValue, trId, column,
				cellData.getRowId());
		Log.debug(replaceColumnSession.toString());

		TDGWTServiceAsync.INSTANCE.startReplaceColumn(replaceColumnSession,
				new AsyncCallback<Void>() {

					@Override
					public void onSuccess(Void result) {
						Log.debug("Submitted replace column value");
						callReplaceColumnProgressDialog();
					}

					@Override
					public void onFailure(Throwable caught) {
						Log.error("Error submitting replace column value: "
								+ caught.getMessage() + " " + caught.getCause());
						caught.printStackTrace();
						UtilsGXT3.alert(
								"Error submitting replace column value",
								caught.getMessage());

					}
				});

	}

	protected void callReplaceColumnProgressDialog() {
		ReplaceColumnProgressDialog dialog = new ReplaceColumnProgressDialog(
				parent, eventBus);
		dialog.show();

	}

	protected void close() {
		parent.close();
	}

}