/*
* 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.wicket.examples.ajax.builtin;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.form.AjaxFormSubmitBehavior;
import org.apache.wicket.core.request.handler.BookmarkablePageRequestHandler;
import org.apache.wicket.core.request.handler.PageProvider;
import org.apache.wicket.extensions.ajax.markup.html.autocomplete.AutoCompleteTextField;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.model.Model;
import org.apache.wicket.request.cycle.RequestCycle;
import org.apache.wicket.util.string.Strings;
/**
* Page that demos the ajax auto complete text field
*
* @author ivaynberg
*/
public class AutoCompletePage extends BasePage
{
/**
* Constructor
*/
public AutoCompletePage()
{
Form<Void> form = new Form<Void>("form");
add(form);
final AutoCompleteTextField<String> field = new AutoCompleteTextField<String>("ac",
new Model<String>(""))
{
@Override
protected Iterator<String> getChoices(String input)
{
if (Strings.isEmpty(input))
{
List<String> emptyList = Collections.emptyList();
return emptyList.iterator();
}
List<String> choices = new ArrayList<String>(10);
Locale[] locales = Locale.getAvailableLocales();
for (final Locale locale : locales)
{
final String country = locale.getDisplayCountry();
if (country.toUpperCase().startsWith(input.toUpperCase()))
{
choices.add(country);
if (choices.size() == 10)
{
break;
}
}
}
return choices.iterator();
}
};
form.add(field);
final Label label = new Label("selectedValue", field.getDefaultModel());
label.setOutputMarkupId(true);
form.add(label);
field.add(new AjaxFormSubmitBehavior(form, "change")
{
@Override
protected void onSubmit(AjaxRequestTarget target)
{
BookmarkablePageRequestHandler bookmarkablePageRequestHandler = new BookmarkablePageRequestHandler(
new PageProvider(Index.class));
RequestCycle requestCycle = RequestCycle.get();
CharSequence urlFor = requestCycle.urlFor(bookmarkablePageRequestHandler);
target.add(label);
}
@Override
protected void onError(AjaxRequestTarget target)
{
}
});
}
}