org.apache.wicket.extensions.markup.html.repeater.tree.DefaultNestedTree.java Source code

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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 org.apache.wicket.extensions.markup.html.repeater.tree;

import java.util.Set;

import org.apache.wicket.Component;
import org.apache.wicket.extensions.markup.html.repeater.tree.content.Folder;
import org.apache.wicket.extensions.markup.html.repeater.tree.theme.WindowsTheme;
import org.apache.wicket.model.IModel;

/**
 * An implementation of the NestedTree that aims to solve the 90% usecase by using {@link Folder}s
 * on a standard {@link NestedTree}.
 * 
 * @param <T>
 *            The node type
 * @author svenmeier
 */
public class DefaultNestedTree<T> extends NestedTree<T> {
    private static final long serialVersionUID = 1L;

    /**
     * Construct.
     * 
     * @param id
     *            component id
     * @param provider
     *            provider of the tree
     */
    public DefaultNestedTree(String id, ITreeProvider<T> provider) {
        this(id, provider, null);
    }

    /**
     * Construct.
     * 
     * @param id
     *            component id
     * @param provider
     *            provider of the tree
     * @param state
     *            expansion state
     */
    public DefaultNestedTree(String id, ITreeProvider<T> provider, IModel<? extends Set<T>> state) {
        super(id, provider, state);

        add(new WindowsTheme());
    }

    /**
     * Creates {@link Folder} for each node.
     * 
     * @param id
     *            component id
     * @param node
     *            the node model
     */
    @Override
    protected Component newContentComponent(String id, IModel<T> node) {
        return new Folder<>(id, this, node);
    }
}