MenuPicker.java

/**
 * Licensed 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.brixcms.plugin.menu.tile;

import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.link.Link;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.IModel;
import org.brixcms.BrixNodeModel;
import org.brixcms.jcr.wrapper.BrixNode;
import org.brixcms.plugin.menu.Menu;
import org.brixcms.web.util.AbstractModel;

import java.util.List;

public class MenuPicker extends Panel {
    /**
     * @param id
     * @param selection     model containing selected menu node
     * @param workspaceNode model containing any existing node in the repository - used to retrieve the workspace name.
     *                      Usually this is the node that represents the tile's parent.
     */
    public MenuPicker(String id, IModel<BrixNode> selection, IModel<BrixNode> workspaceNode) {
        super(id, selection);
        add(new MenuListView("menues", selection, workspaceNode));
    }

    private static class MenuListView extends ListView<BrixNode> {
        private final IModel<BrixNode> selection;

        public MenuListView(String id, IModel<BrixNode> selection, IModel<BrixNode> workspaceNode) {
            super(id, new MenuNodesListModel(workspaceNode));
            this.selection = selection;
        }

        @Override
        protected void populateItem(final ListItem<BrixNode> item) {
            Link<Object> select = new Link<Object>("select") {
                @Override
                public void onClick() {
                    selection.setObject(item.getModelObject());
                }

                @Override
                public boolean isEnabled() {
                    BrixNode current = selection.getObject();
                    return current == null || !item.getModelObject().isSame(current);
                }
            };
            IModel<String> labelModel = new AbstractModel<String>() {
                @Override
                public String getObject() {
                    BrixNode node = item.getModelObject();
                    Menu menu = new Menu();
                    menu.loadName(node);
                    return menu.getName();
                }
            };
            select.add(new Label("label", labelModel));
            item.add(select);
        }

        @Override
        protected IModel<BrixNode> getListItemModel(IModel<? extends List<BrixNode>> listViewModel,
                                                    int index) {
            List<BrixNode> nodes = listViewModel.getObject();
            return new BrixNodeModel(nodes.get(index));
        }

        @Override
        protected void detachModel() {
            super.detachModel();
            selection.detach();
        }
    }

    ;
}