/*
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* Copyright 2014 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.wicket.panels;
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import java.util.List;
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import org.apache.wicket.ajax.AjaxRequestTarget;
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import org.apache.wicket.ajax.form.AjaxFormComponentUpdatingBehavior;
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import org.apache.wicket.markup.html.basic.Label;
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import org.apache.wicket.markup.html.form.CheckBox;
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import org.apache.wicket.markup.html.form.DropDownChoice;
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import org.apache.wicket.model.IModel;
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import org.parboiled.common.StringUtils;
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/**
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* A re-usable conditional choice option panel.
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*
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* [x] title
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* description
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* [choices]
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*
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* @author James Moger
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*
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*/
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public class ConditionalChoiceOption<T> extends BasePanel {
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private static final long serialVersionUID = 1L;
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final CheckBox checkbox;
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final DropDownChoice<T> choice;
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public ConditionalChoiceOption(String wicketId, String title, String description, IModel<Boolean> checkboxModel, IModel<T> choiceModel, List<T> choices) {
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super(wicketId);
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add(new Label("name", title));
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add(new Label("description", description).setVisible(!StringUtils.isEmpty(description)));
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this.checkbox = new CheckBox("checkbox", checkboxModel);
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checkbox.setOutputMarkupId(true);
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this.choice = new DropDownChoice<T>("choice", choiceModel, choices);
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choice.setOutputMarkupId(true);
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setup();
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}
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private void setup() {
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add(checkbox);
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add(choice.setMarkupId("choice").setEnabled(choice.getChoices().size() > 0));
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choice.setEnabled(checkbox.getModelObject());
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checkbox.add(new AjaxFormComponentUpdatingBehavior("onchange") {
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private static final long serialVersionUID = 1L;
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@Override
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protected void onUpdate(AjaxRequestTarget target) {
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choice.setEnabled(checkbox.getModelObject());
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target.addComponent(choice);
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if (!choice.isEnabled()) {
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choice.setModelObject(null);
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}
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}
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});
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}
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}
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