org.wicketstuff.egrid.toolbar.EditableGridHeadersToolbar Maven / Gradle / Ivy

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package org.wicketstuff.egrid.toolbar;

import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

import org.apache.wicket.extensions.markup.html.repeater.data.sort.ISortStateLocator;
import org.apache.wicket.extensions.markup.html.repeater.data.sort.OrderByBorder;
import org.apache.wicket.extensions.markup.html.repeater.data.table.IColumn;
import org.apache.wicket.extensions.markup.html.repeater.data.table.IStyledColumn;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.repeater.Item;
import org.apache.wicket.markup.repeater.RefreshingView;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;
import org.wicketstuff.egrid.component.EditableDataTable;
import org.wicketstuff.egrid.component.EditableDataTable.CssAttributeBehavior;
/**
 * 
 * @author Nadeem Mohammad
 *
 */
public class EditableGridHeadersToolbar extends AbstractEditableGridToolbar
{

		private static final long serialVersionUID = 1L;

		/**
		 * Constructor
		 * 
		 * @param 
		 *            the column data type
		 * @param table
		 *            data table this toolbar will be attached to
		 * @param stateLocator
		 *            locator for the ISortState implementation used by sortable headers
		 */
		public EditableGridHeadersToolbar(final EditableDataTable table, final ISortStateLocator stateLocator)
		{
			super(table);

			RefreshingView> headers = new RefreshingView>("headers")
			{
				private static final long serialVersionUID = 1L;

				@Override
				protected Iterator>> getItemModels()
				{
					List>> columnsModels = new LinkedList>>();

					for (IColumn column : table.getColumns())
					{
						columnsModels.add(Model.of(column));
					}

					return columnsModels.iterator();
				}

				@Override
				protected void populateItem(Item> item)
				{
					final IColumn column = item.getModelObject();

					WebMarkupContainer header = null;

					if (column.isSortable())
					{
						header = newSortableHeader("header", column.getSortProperty(), stateLocator);
					}
					else
					{
						header = new WebMarkupContainer("header");
					}

					if (column instanceof IStyledColumn)
					{
						CssAttributeBehavior cssAttributeBehavior = new EditableDataTable.CssAttributeBehavior()
						{
							private static final long serialVersionUID = 1L;

							@Override
							protected String getCssClass()
							{
								return ((IStyledColumn)column).getCssClass();
							}
						};

						header.add(cssAttributeBehavior);
					}

					item.add(header);
					item.setRenderBodyOnly(true);
					header.add(column.getHeader("label"));
				}
			};
			add(headers);
		}

		/**
		 * Factory method for sortable header components. A sortable header component must have id of
		 * headerId and conform to markup specified in HeadersToolbar.html
		 * 
		 * @param headerId
		 *            header component id
		 * @param property
		 *            property this header represents
		 * @param locator
		 *            sort state locator
		 * @return created header component
		 */
		protected WebMarkupContainer newSortableHeader(final String headerId, final S property, final ISortStateLocator locator)
		{
			return new OrderByBorder(headerId, property, locator)
			{
				private static final long serialVersionUID = 1L;

				@Override
				protected void onSortChanged()
				{
					getTable().setCurrentPage(0);
				}
			};
		}
}