/*
* 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.kittenCaptcha;
import java.awt.Dimension;
import org.apache.wicket.PageParameters;
import org.apache.wicket.ajax.AjaxRequestTarget;
import org.apache.wicket.ajax.markup.html.AjaxLink;
import org.apache.wicket.examples.WicketExamplePage;
import org.apache.wicket.extensions.captcha.kittens.KittenCaptchaPanel;
/**
* Kitten captcha example
*/
public class HomePage extends WicketExamplePage
{
private static final long serialVersionUID = 1L;
private final KittenCaptchaPanel captcha;
private int errors;
/**
* Constructor that is invoked when page is invoked without a session.
*
* @param parameters
* Page parameters
*/
public HomePage(final PageParameters parameters)
{
add(captcha = new KittenCaptchaPanel("captcha", new Dimension(400, 200)));
// In a real application, you'd check the kittens in a form
add(new AjaxLink("checkKittens")
{
private static final long serialVersionUID = 642245961797905032L;
@Override
public void onClick(final AjaxRequestTarget target)
{
if (!isSpamBot() && captcha.allKittensSelected())
{
target.appendJavascript("alert('you win! happy kittens!');");
}
else
{
errors++;
if (isSpamBot())
{
target.appendJavascript("alert('spammer alert');");
}
else
{
target.appendJavascript("alert('please try again');");
}
target.addComponent(captcha);
}
captcha.reset();
}
});
}
/**
*
* @return
*/
boolean isSpamBot()
{
return errors > 3;
}
}