/*
 * 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.examples.tree.content;

import org.apache.wicket.Component;
import org.apache.wicket.examples.tree.Foo;
import org.apache.wicket.extensions.markup.html.repeater.tree.AbstractTree;
import org.apache.wicket.extensions.markup.html.repeater.tree.ITreeProvider;
import org.apache.wicket.extensions.markup.html.repeater.tree.content.CheckedFolder;
import org.apache.wicket.extensions.markup.html.repeater.util.ProviderSubset;
import org.apache.wicket.model.IModel;

/**
 * @author Sven Meier
 */
public class CheckedFolderContent extends Content
{
    private static final long serialVersionUID = 1L;

    private ProviderSubset<Foo> checked;

    public CheckedFolderContent(ITreeProvider<Foo> provider)
    {
        checked = new ProviderSubset<>(provider, false);
    }

    @Override
    public void detach()
    {
        checked.detach();
    }

    protected boolean isChecked(Foo foo)
    {
        return checked.contains(foo);
    }

    protected void check(Foo foo, boolean check)
    {
        if (check)
        {
            checked.add(foo);
        }
        else
        {
            checked.remove(foo);
        }
    }

    @Override
    public Component newContentComponent(String id, final AbstractTree<Foo> tree, IModel<Foo> model)
    {
        return new CheckedFolder<Foo>(id, tree, model)
        {
            private static final long serialVersionUID = 1L;

            @Override
            protected IModel<Boolean> newCheckBoxModel(final IModel<Foo> model)
            {
                return new IModel<Boolean>()
                {
                    private static final long serialVersionUID = 1L;

                    @Override
                    public Boolean getObject()
                    {
                        return isChecked(model.getObject());
                    }

                    @Override
                    public void setObject(Boolean object)
                    {
                        check(model.getObject(), object);
                    }
                };
            }
        };
    }
}