net.dontdrinkandroot.extensions.wicket.component.jqueryui.JQueryUiAjaxRadioChoice.java Source code

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Here is the source code for net.dontdrinkandroot.extensions.wicket.component.jqueryui.JQueryUiAjaxRadioChoice.java

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/**
 * Copyright (C) 2012-2014 Philip W. Sorst <philip@sorst.net>
 * and individual contributors as indicated
 * by the @authors tag.
 * <p>
 * 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
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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 net.dontdrinkandroot.extensions.wicket.component.jqueryui;

import net.dontdrinkandroot.extensions.wicket.jqueryui.JQueryUiScript;
import org.apache.wicket.ajax.AjaxEventBehavior;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.behavior.AttributeAppender;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.OnDomReadyHeaderItem;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.form.ChoiceRenderer;
import org.apache.wicket.markup.html.form.IChoiceRenderer;
import org.apache.wicket.markup.html.form.Radio;
import org.apache.wicket.markup.html.form.RadioGroup;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.GenericPanel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.Model;
import org.apache.wicket.model.util.ListModel;

import java.util.List;

public class JQueryUiAjaxRadioChoice<T> extends GenericPanel<T> {
    private static final long serialVersionUID = 1L;

    /**
     * The list of objects.
     */
    private IModel<? extends List<T>> choices;

    /**
     * The renderer used to generate display/id values for the objects.
     */
    private IChoiceRenderer<? super T> renderer;

    public JQueryUiAjaxRadioChoice(String id, IModel<T> model, List<T> choices) {
        this(id, model, new ListModel<T>(choices), new ChoiceRenderer<T>());
    }

    public JQueryUiAjaxRadioChoice(final String id, IModel<T> model, final List<T> choices,
            final IChoiceRenderer<? super T> renderer) {
        this(id, model, new ListModel<T>(choices), renderer);
    }

    public JQueryUiAjaxRadioChoice(String id, IModel<T> model, IModel<? extends List<T>> choices) {
        this(id, model, choices, new ChoiceRenderer<T>());
    }

    public JQueryUiAjaxRadioChoice(String id, IModel<T> model, IModel<? extends List<T>> choices,
            IChoiceRenderer<? super T> renderer) {
        super(id, model);

        this.setOutputMarkupId(true);

        this.choices = choices;
        this.setChoiceRenderer(renderer);

        final RadioGroup<T> radioGroup = new RadioGroup<T>("radioGroup", model);
        this.add(radioGroup);

        final ListView<T> radioItemView = new ListView<T>("radioItem", choices) {

            private static final long serialVersionUID = 1L;

            @Override
            protected void populateItem(final ListItem<T> item) {

                final Radio<T> radio = new Radio<T>("input", item.getModel(), radioGroup);
                radio.setOutputMarkupId(true);
                radio.add(new AjaxEventBehavior("onclick") {

                    private static final long serialVersionUID = 1L;

                    @Override
                    protected void onEvent(AjaxRequestTarget target) {
                        JQueryUiAjaxRadioChoice.this.onSelectionChanged(item.getModelObject(), target);
                    }
                });
                item.add(radio);

                final Label label = new Label("label", JQueryUiAjaxRadioChoice.this.getChoiceRenderer()
                        .getDisplayValue(item.getModel().getObject()).toString());
                label.add(new AttributeAppender("for", new Model<String>(radio.getMarkupId())));
                item.add(label);

                item.setRenderBodyOnly(true);
            }
        };
        radioGroup.add(radioItemView);
    }

    public final JQueryUiAjaxRadioChoice<T> setChoiceRenderer(IChoiceRenderer<? super T> renderer) {
        if (renderer == null) {
            this.renderer = new ChoiceRenderer<T>();
        }
        this.renderer = renderer;

        return this;
    }

    public final IChoiceRenderer<? super T> getChoiceRenderer() {
        return this.renderer;
    }

    protected void onSelectionChanged(T newValue, AjaxRequestTarget target) {
        this.setModelObject(newValue);
    }

    @Override
    public void renderHead(IHeaderResponse response) {
        super.renderHead(response);

        response.render(OnDomReadyHeaderItem.forScript(new JQueryUiScript(this).buttonset().toString()));
    }
}