org.apache.openmeetings.web.components.admin.labels.LangForm.java Source code

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Here is the source code for org.apache.openmeetings.web.components.admin.labels.LangForm.java

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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.openmeetings.web.components.admin.labels;

import org.apache.openmeetings.data.basic.FieldLanguageDao;
import org.apache.openmeetings.persistence.beans.lang.FieldLanguage;
import org.apache.openmeetings.web.app.Application;
import org.apache.openmeetings.web.components.ConfirmCallListener;
import org.apache.wicket.ajax.AjaxEventBehavior;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.attributes.AjaxRequestAttributes;
import org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior;
import org.apache.wicket.ajax.form.AjaxFormValidatingBehavior;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.form.ChoiceRenderer;
import org.apache.wicket.markup.html.form.DropDownChoice;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.model.PropertyModel;
import org.apache.wicket.util.time.Duration;

/**
 * Modify the language selection, add/delete {@link FieldLanguage}
 * 
 * @author swagner
 * 
 */
public class LangForm extends Form<Void> {

    private static final long serialVersionUID = 2837702941211636609L;
    private DropDownChoice<FieldLanguage> languages;

    public void updateLanguages(AjaxRequestTarget target) {
        FieldLanguageDao langDao = Application.getBean(FieldLanguageDao.class);
        languages.setChoices(langDao.getLanguages());
        // add(languages);
        target.add(languages);
    }

    /**
     * Render Main
     * 
     * @param id
     * @param listContainer
     * @param language
     * @param langPanel
     */
    public LangForm(String id, final WebMarkupContainer listContainer, final LangPanel langPanel) {
        super(id);
        setOutputMarkupId(true);

        FieldLanguageDao langDao = Application.getBean(FieldLanguageDao.class);

        languages = new DropDownChoice<FieldLanguage>("language",
                new PropertyModel<FieldLanguage>(langPanel, "language"), langDao.getLanguages(),
                new ChoiceRenderer<FieldLanguage>("name", "language_id"));

        languages.add(new AjaxFormComponentUpdatingBehavior("onchange") {
            private static final long serialVersionUID = -2055912815073387536L;

            @Override
            protected void onUpdate(AjaxRequestTarget target) {
                target.add(listContainer);
            }
        });
        add(languages);

        add(new WebMarkupContainer("deleteLangBtn").add(new AjaxEventBehavior("onclick") {
            private static final long serialVersionUID = -1650946343073068686L;

            @Override
            protected void updateAjaxAttributes(AjaxRequestAttributes attributes) {
                super.updateAjaxAttributes(attributes);
                attributes.getAjaxCallListeners().add(new ConfirmCallListener(833L));
            }

            @Override
            protected void onEvent(AjaxRequestTarget target) {
                langPanel.language.setDeleted(true);
                FieldLanguageDao langDao = Application.getBean(FieldLanguageDao.class);
                try {
                    langDao.updateLanguage(langPanel.language);
                } catch (Exception e) {
                    // TODO add feedback message
                    e.printStackTrace();
                }
                languages.setChoices(langDao.getLanguages());
                target.add(languages);
                // FIXME need to force update list container
                target.add(listContainer);
            }
        }));

        // attach an ajax validation behavior to all form component's keydown
        // event and throttle it down to once per second
        AjaxFormValidatingBehavior.addToAllFormComponents(this, "keydown", Duration.ONE_SECOND);
    }
}