/*
* 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.markup.html.pages;
import org.apache.wicket.AttributeModifier;
import org.apache.wicket.markup.head.IHeaderResponse;
import org.apache.wicket.markup.head.OnLoadHeaderItem;
import org.apache.wicket.markup.html.WebComponent;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.model.AbstractReadOnlyModel;
import org.apache.wicket.model.IModel;
import org.apache.wicket.model.LoadableDetachableModel;
import org.apache.wicket.protocol.http.ClientProperties;
import org.apache.wicket.protocol.http.WebSession;
import org.apache.wicket.protocol.http.request.WebClientInfo;
import org.apache.wicket.request.cycle.RequestCycle;
/**
* <p>
* This page uses a form post right after the page has loaded in the browser, using JavaScript or
* alternative means to detect and pass on settings to the embedded form. The form submit method
* updates this session's {@link org.apache.wicket.core.request.ClientInfo} object and then redirects to
* the original location as was passed in as a URL argument in the constructor.
* </p>
* <p>
* This page is being used by the default implementation of {@link org.apache.wicket.Session#getClientInfo()},
* which in turn uses
* {@link org.apache.wicket.settings.RequestCycleSettings#getGatherExtendedBrowserInfo() a setting} to
* determine whether this page should be redirected to (it does when it is true).
* </p>
*
* @author Eelco Hillenius
*/
public class BrowserInfoPage extends WebPage
{
private static final long serialVersionUID = 1L;
private BrowserInfoForm browserInfoForm;
/**
* Bookmarkable constructor. This is not for normal framework client use. It will be called
* whenever JavaScript is not supported, and the browser info page's meta refresh fires to this
* page. Prior to this, the other constructor should already have been called.
*/
public BrowserInfoPage()
{
initComps();
RequestCycle requestCycle = getRequestCycle();
WebSession session = (WebSession)getSession();
WebClientInfo clientInfo = session.getClientInfo();
if (clientInfo == null)
{
clientInfo = new WebClientInfo(requestCycle);
getSession().setClientInfo(clientInfo);
}
else
{
ClientProperties properties = clientInfo.getProperties();
properties.setJavaEnabled(false);
}
continueToOriginalDestination();
}
@Override
public void renderHead(IHeaderResponse response)
{
super.renderHead(response);
response.render(OnLoadHeaderItem.forScript(
String.format("Wicket.BrowserInfo.submitForm('%s')", browserInfoForm.getFormMarkupId())));
}
@Override
public boolean isVersioned()
{
return false;
}
/**
* Adds components.
*/
private void initComps()
{
WebComponent meta = new WebComponent("meta");
final IModel<String> urlModel = new LoadableDetachableModel<String>()
{
private static final long serialVersionUID = 1L;
@Override
protected String load()
{
CharSequence url = urlFor(BrowserInfoPage.class, null);
return url.toString();
}
};
meta.add(AttributeModifier.replace("content", new AbstractReadOnlyModel<String>()
{
private static final long serialVersionUID = 1L;
@Override
public String getObject()
{
return "0; url=" + urlModel.getObject();
}
}));
add(meta);
WebMarkupContainer link = new WebMarkupContainer("link");
link.add(AttributeModifier.replace("href", urlModel));
add(link);
browserInfoForm = new BrowserInfoForm("postback")
{
private static final long serialVersionUID = 1L;
@Override
protected void afterSubmit()
{
continueToOriginalDestination();
}
};
add(browserInfoForm);
}
}