ValueChoicesSelect2PanelFactory.java

/*
 *  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.isis.viewer.wicket.ui.components.scalars.valuechoices;

import org.apache.wicket.Component;
import org.apache.wicket.model.IModel;

import org.apache.isis.viewer.wicket.model.models.ScalarModel;
import org.apache.isis.viewer.wicket.ui.ComponentFactoryAbstract;
import org.apache.isis.viewer.wicket.ui.ComponentType;
import org.apache.isis.viewer.wicket.ui.components.scalars.string.StringPanel;

public class ValueChoicesSelect2PanelFactory extends ComponentFactoryAbstract {

    private static final long serialVersionUID = 1L;

    public ValueChoicesSelect2PanelFactory() {
        super(ComponentType.SCALAR_NAME_AND_VALUE, ValueChoicesSelect2Panel.class);
    }

    @Override
    public ApplicationAdvice appliesTo(final IModel<?> model) {
        if (!(model instanceof ScalarModel)) {
            return ApplicationAdvice.DOES_NOT_APPLY;
        }
        final ScalarModel scalarModel = (ScalarModel) model;
        final boolean hasChoices = scalarModel.hasChoices();

        // autoComplete not supported on values, only references
        // this is because there is no easy way in the ChoiceProvider to convert the list of Ids (strings)
        // into corresponding ObjectAdapterMemento's.
        // see subclasses of ObjectAdapterMementoProviderAbstract

        // final boolean hasAutoComplete = scalarModel.hasAutoComplete();
        return appliesIf(hasChoices /* || hasAutoComplete */);
    }

    @Override
    public final Component createComponent(final String id, final IModel<?> model) {
        final ScalarModel scalarModel = (ScalarModel) model;
        if(scalarModel.isViewMode()) {
            return new StringPanel(id, scalarModel);
        } else {
            return new ValueChoicesSelect2Panel(id, scalarModel);
        }
    }

}