wickettree.table.HeadersToolbar.java Source code

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Here is the source code for wickettree.table.HeadersToolbar.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package wickettree.table;

import org.apache.wicket.behavior.AttributeAppender;
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.RepeatingView;
import org.apache.wicket.model.Model;

import wickettree.TableTree;

/**
 * Copy of
 * {@link org.apache.wicket.extensions.markup.html.repeater.data.table.HeadersToolbar}
 */
public class HeadersToolbar extends AbstractToolbar {
    private static final long serialVersionUID = 1L;

    /**
     * Constructor
     * 
     * @param tree
     *            tree this toolbar will be attached to
     */
    public HeadersToolbar(final TableTree<?> tree) {
        this(tree, null);
    }

    /**
     * Constructor
     * 
     * @param tree
     *            tree this toolbar will be attached to
     */
    public HeadersToolbar(final TableTree<?> tree, final ISortStateLocator stateLocator) {
        super(tree);

        RepeatingView headers = new RepeatingView("headers");
        add(headers);

        for (final IColumn<?> column : tree.getColumns()) {
            WebMarkupContainer item = new WebMarkupContainer(headers.newChildId());
            headers.add(item);

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

            if (column instanceof IStyledColumn<?>) {
                header.add(
                        new AttributeAppender("class", Model.of(((IStyledColumn<?>) column).getCssClass()), " "));
            }

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

        }
    }

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

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