/*
* 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.myfaces.view.facelets.pss.acid.component;
import java.util.Random;
import javax.faces.component.FacesComponent;
import javax.faces.component.UIComponentBase;
import javax.faces.component.UIOutput;
import javax.faces.component.UIViewRoot;
import javax.faces.context.FacesContext;
import javax.faces.event.AbortProcessingException;
import javax.faces.event.PreRenderViewEvent;
import javax.faces.event.SystemEvent;
import javax.faces.event.SystemEventListener;
@FacesComponent(value = "com.myapp.UIDynamicFormComponent")
public class UIDynamicFormComponent extends UIComponentBase implements
SystemEventListener
{
//
// Constructor
//
public UIDynamicFormComponent()
{
setRendererType("testcomponent");
FacesContext context = FacesContext.getCurrentInstance();
UIViewRoot root = context.getViewRoot();
root.subscribeToViewEvent(PreRenderViewEvent.class, this);
}
//
// Public methods
//
@Override
public String getFamily()
{
return "com.myapp";
}
public boolean isListenerForSource(Object source)
{
return (source instanceof UIViewRoot);
}
public void processEvent(SystemEvent event) throws AbortProcessingException
{
// Clear the existing tree.
this.getChildren().clear();
Integer index = (Integer) this.getAttributes().get("index");
if (index == null)
{
index = 1;
}
else
{
index = index + 1;
}
this.getAttributes().put("index", index);
// Start building the new component tree with formRoot as parent.
Random random = new Random() ;
int n = random.nextInt(9)+1;
for(int i = 0; i < n; i++)
{
UIOutput input = new UIOutput();
input.setId("input_"+index+"_"+i);
this.getChildren().add(input);
}
}
}