tabular-data-manager/src/main/java/org/gcube/portlets/user/td/client/grid/GridContextMenu.java

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

import java.util.ArrayList;
import java.util.List;

import org.gcube.portlets.user.td.client.resource.TabularDataResources;
import org.gcube.portlets.user.td.widgetcommonevent.client.event.GridContextMenuItemEvent;
import org.gcube.portlets.user.td.widgetcommonevent.shared.GridOperationId;
import org.gcube.portlets.user.tdwx.client.TabularDataXGridPanel;
import org.gcube.portlets.user.tdwx.client.config.Row;
import org.gcube.portlets.user.tdwx.client.model.grid.DataRowColumnConfig;
import org.gcube.portlets.user.tdwx.shared.model.ColumnDefinition;
import org.gcube.portlets.user.tdwx.shared.model.ColumnType;
import org.gcube.portlets.user.tdwx.shared.model.DataRow;

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.web.bindery.event.shared.EventBus;
import com.sencha.gxt.widget.core.client.grid.ColumnConfig;
import com.sencha.gxt.widget.core.client.grid.ColumnModel;
import com.sencha.gxt.widget.core.client.menu.Item;
import com.sencha.gxt.widget.core.client.menu.Menu;
import com.sencha.gxt.widget.core.client.menu.MenuItem;

/**
 * 
 * @author "Giancarlo Panichi" <a
 *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
 * 
 *         Defines the context menu of grid
 */
public class GridContextMenu {
	protected Menu tableContextMenu;
	protected final TabularDataXGridPanel gridPanel;
	protected EventBus eventBus;

	public GridContextMenu(final TabularDataXGridPanel gridPanel,
			final EventBus eventBus) {
		this.gridPanel = gridPanel;
		this.eventBus = eventBus;
		tableContextMenu = new Menu();

		MenuItem addRowItem = new MenuItem("Add Row");
		addRowItem.setId(GridOperationId.ROWADD.toString());
		addRowItem.setIcon(TabularDataResources.INSTANCE.rowInsert());
		addRowItem.addSelectionHandler(new SelectionHandler<Item>() {

			@Override
			public void onSelection(SelectionEvent<Item> event) {
				Log.debug("gridPanel is: " + gridPanel);
				if (gridPanel != null) {
					ColumnModel<DataRow> columnModel = gridPanel.getGrid()
							.getColumnModel();

					List<ColumnConfig<DataRow, ?>> columns = columnModel
							.getColumns();
					DataRowColumnConfig<?> c = null;
					boolean columnIdRetrieved = false;
					for (ColumnConfig<DataRow, ?> col : columns) {
						c = (DataRowColumnConfig<?>) col;
						ColumnType ctype = c.getDefinition().getType();
						if (ctype == ColumnType.COLUMNID) {
							columnIdRetrieved = true;
							break;
						}
					}

					if (columnIdRetrieved) {
						ColumnDefinition cd = c.getDefinition();
						Log.debug("CD - Definition:" + cd.getId()
								+ " ColumnLocalId:" + cd.getColumnLocalId()
								+ " Label:" + cd.getLabel() + " Key:"
								+ cd.getKey());
						List<Row> rowsSelected = gridPanel.getSelectedRows();
						Log.debug("Retriving rows selected");
						String rowS = "";
						ArrayList<String> rows = new ArrayList<String>();
						if (rowsSelected != null) {
							for (Row row : rowsSelected) {
								rowS = row.getFieldAsText(cd.getLabel());
								Log.debug("Selected Row:" + rowS);
								rows.add(rowS);
							}
						} else {
							Log.debug("no selected rows retrived");
						}
						GridContextMenuItemEvent eventGridContextMenu = new GridContextMenuItemEvent(
								GridOperationId.ROWADD, rows);
						eventBus.fireEvent(eventGridContextMenu);
					} else {
						Log.debug("no COLUMNID retrived");
					}

				}

			}
		});
		tableContextMenu.add(addRowItem);

		
		MenuItem editRowItem = new MenuItem("Edit Row");
		editRowItem.setId(GridOperationId.ROWEDIT.toString());
		editRowItem.setIcon(TabularDataResources.INSTANCE.rowEdit());
		editRowItem.addSelectionHandler(new SelectionHandler<Item>() {

			@Override
			public void onSelection(SelectionEvent<Item> event) {
				Log.debug("gridPanel is: " + gridPanel);
				if (gridPanel != null) {
					ColumnModel<DataRow> columnModel = gridPanel.getGrid()
							.getColumnModel();

					List<ColumnConfig<DataRow, ?>> columns = columnModel
							.getColumns();
					DataRowColumnConfig<?> c = null;
					boolean columnIdRetrieved = false;
					for (ColumnConfig<DataRow, ?> col : columns) {
						c = (DataRowColumnConfig<?>) col;
						ColumnType ctype = c.getDefinition().getType();
						if (ctype == ColumnType.COLUMNID) {
							columnIdRetrieved = true;
							break;
						}
					}

					if (columnIdRetrieved) {
						ColumnDefinition cd = c.getDefinition();
						Log.debug("CD - Definition:" + cd.getId()
								+ " ColumnLocalId:" + cd.getColumnLocalId()
								+ " Label:" + cd.getLabel() + " Key:"
								+ cd.getKey());
						List<Row> rowsSelected = gridPanel.getSelectedRows();
						Log.debug("Retriving rows selected");
						String rowS = "";
						ArrayList<String> rows = new ArrayList<String>();
						if (rowsSelected != null) {
							for (Row row : rowsSelected) {
								rowS = row.getFieldAsText(cd.getLabel());
								Log.debug("Selected Row:" + rowS);
								rows.add(rowS);
							}
						} else {
							Log.debug("no selected rows retrived");
						}
						GridContextMenuItemEvent eventGridContextMenu = new GridContextMenuItemEvent(
								GridOperationId.ROWEDIT, rows);
						eventBus.fireEvent(eventGridContextMenu);
					} else {
						Log.debug("no COLUMNID retrived");
					}

				}

			}
		});
		tableContextMenu.add(editRowItem);

		MenuItem deleteRowItem = new MenuItem("Delete Row");
		deleteRowItem.setId(GridOperationId.ROWDELETE.toString());
		deleteRowItem.setIcon(TabularDataResources.INSTANCE.rowRemove());
		deleteRowItem.addSelectionHandler(new SelectionHandler<Item>() {

			@Override
			public void onSelection(SelectionEvent<Item> event) {
				Log.debug("gridPanel is: " + gridPanel);
				if (gridPanel != null) {
					ColumnModel<DataRow> columnModel = gridPanel.getGrid()
							.getColumnModel();

					List<ColumnConfig<DataRow, ?>> columns = columnModel
							.getColumns();
					DataRowColumnConfig<?> c = null;
					boolean columnIdRetrieved = false;
					for (ColumnConfig<DataRow, ?> col : columns) {
						c = (DataRowColumnConfig<?>) col;
						ColumnType ctype = c.getDefinition().getType();
						if (ctype == ColumnType.COLUMNID) {
							columnIdRetrieved = true;
							break;
						}
					}

					if (columnIdRetrieved) {
						ColumnDefinition cd = c.getDefinition();
						Log.debug("CD - Definition:" + cd.getId()
								+ " ColumnLocalId:" + cd.getColumnLocalId()
								+ " Label:" + cd.getLabel() + " Key:"
								+ cd.getKey());
						List<Row> rowsSelected = gridPanel.getSelectedRows();
						Log.debug("Retriving rows selected");
						String rowS = "";
						ArrayList<String> rows = new ArrayList<String>();
						if (rowsSelected != null) {
							for (Row row : rowsSelected) {
								rowS = row.getFieldAsText(cd.getLabel());
								Log.debug("Selected Row:" + rowS);
								rows.add(rowS);
							}
						} else {
							Log.debug("no selected rows retrived");
						}
						GridContextMenuItemEvent eventGridContextMenu = new GridContextMenuItemEvent(
								GridOperationId.ROWDELETE, rows);
						eventBus.fireEvent(eventGridContextMenu);
					} else {
						Log.debug("no COLUMNID retrived");
					}

				}

			}
		});
		tableContextMenu.add(deleteRowItem);

	}

	/**
	 * 
	 * @return context menu for grid
	 */
	public Menu getMenu() {
		return tableContextMenu;
	}
}