/*
* #!
* Ontopoly Editor
* #-
* Copyright (C) 2001 - 2013 The Ontopia Project
* #-
* 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 ontopoly.components;
import org.apache.wicket.markup.html.IHeaderResponse;
import org.apache.wicket.util.string.AppendingStringBuffer;
/**
* This is variant of AjaxFormChoiceComponentUpdatingBehavior that allows
* nested AjaxParentRadioChild and AjaxParentCheckChild instances to update
* the parent RadioGroup or CheckGroup. This is neccessary when any
* children of the group gets replaced using AJAX. This is done to work
* around a limitation of the AjaxFormChoiceComponentUpdatingBehavior
* class, which does not allow form choice children components to be
* replaced/added via AJAX.
* @author grove
* @see AjaxParentRadioChild and AjaxParentCheckChild
*/
public abstract class AjaxParentFormChoiceComponentUpdatingBehavior extends
org.apache.wicket.ajax.form.AjaxFormChoiceComponentUpdatingBehavior {
@Override
public void renderHead(IHeaderResponse response) {
super.renderHead(response);
AppendingStringBuffer asb = new AppendingStringBuffer();
asb.append("function attachChoiceHandler(markupId, callbackScript) {\n");
asb.append(" var inputNode = wicketGet(markupId);\n");
asb.append(" var inputType = inputNode.type.toLowerCase();\n");
asb.append(" if (inputType == 'checkbox' || inputType == 'radio') {\n");
asb.append(" Wicket.Event.add(inputNode, 'click', callbackScript);\n");
asb.append(" }\n");
asb.append("}\n");
response.renderJavascript(asb, "attachChoiceParent");
}
public CharSequence getCallbackFunction() {
return getEventHandler();
}
}