/**
* 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.wicketstuff.jeeweb.el;
import org.apache.wicket.Page;
import org.apache.wicket.core.util.lang.WicketObjects;
import org.apache.wicket.protocol.http.RequestUtils;
import org.apache.wicket.request.cycle.PageRequestHandlerTracker;
import org.apache.wicket.request.cycle.RequestCycle;
import org.apache.wicket.request.mapper.parameter.PageParameters;
import org.wicketstuff.jeeweb.ajax.JEEWebGlobalAjaxHandler;
/**
* This class is used for JSPs and JSFs to render a URLs with EL expressions:
*
* <pre>
* ${wicket:url('mypackage.MyPage')}
* and
* ${wicket:urlWithQuery('mypackage.MyPage','param1=value1¶m2=value2')}
* </pre>
*
* @author Tobias Soloschenko
*/
public class ELFunctions
{
/**
* Creates a URL based on the given page and the given query
*
* @param page
* the page to be used within the link
* @param query
* the query with all parameters
* @return the url
*/
public static String urlWithQuery(String page, String query)
{
PageParameters pageParameters = new PageParameters();
if (query != null)
{
RequestUtils.decodeParameters(query, pageParameters);
}
Class<Page> resolveClass = WicketObjects.resolveClass(page);
final CharSequence urlFor = RequestCycle.get().urlFor(resolveClass, pageParameters);
return urlFor.toString();
}
/**
* Creates a URL based on the given page
*
* @param page
* the page to be used within the link
* @return the URL
*/
public static String url(String page)
{
PageParameters pageParameters = new PageParameters();
Class<Page> resolveClass = WicketObjects.resolveClass(page);
final CharSequence urlFor = RequestCycle.get().urlFor(resolveClass, pageParameters);
return urlFor.toString();
}
/**
* Gets the plan callback URL to process a request to the current rendered page with pre
* rendered query arguments
*
* @param query
* the query
* @return the plane callback URL
*/
public static String ajaxCallbackUrlWithQuery(String query)
{
PageParameters pageParameters = new PageParameters();
if (query != null)
{
RequestUtils.decodeParameters(query, pageParameters);
}
pageParameters.add("pageId", PageRequestHandlerTracker.getLastHandler(RequestCycle.get())
.getPage().getPageId());
final CharSequence urlFor = RequestCycle.get().urlFor(new JEEWebGlobalAjaxHandler(),
pageParameters);
return urlFor.toString();
}
/**
* Gets the plan callback URL to process a request to the current rendered page
*
* @return the plane callback URL
*/
public static String ajaxCallbackUrl()
{
PageParameters pageParameters = new PageParameters();
pageParameters.add("pageId", PageRequestHandlerTracker.getLastHandler(RequestCycle.get())
.getPage().getPageId());
final CharSequence urlFor = RequestCycle.get().urlFor(new JEEWebGlobalAjaxHandler(),
pageParameters);
return urlFor.toString();
}
/**
* Creates a ajax callback function that processes a request to the current rendered page
*
* @return the callback function
*/
public static String ajaxGet()
{
return "Wicket.Ajax.get({'u':'" + ajaxCallbackUrl() + "'});";
}
/**
* Creates a ajax callback function that processes a request to the current rendered page.
* It takes in input a query string.
*
* @param query
* the query to be send to the function
* @return the callback function
*/
public static String ajaxGetWithQuery(String query)
{
return "Wicket.Ajax.get({'u':'" + ajaxCallbackUrlWithQuery(query) + "'});";
}
/**
* Creates a ajax callback function to send a form via AJAX to the current rendered page.
*
* @param method
* the request method that must be used (GET or POST).
* @return the callback function
*/
public static String ajaxFormSubmit(String method)
{
return "Wicket.Ajax.ajax({'u':'" + ajaxCallbackUrl() + "', 'm':'" + method +"', 'f':this.id});return false;";
}
}