org.springframework.faces.webflow.FlowPartialViewContext Maven / Gradle / Ivy
/*
* Copyright 2004-2012 the original author or authors.
*
* Licensed 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.springframework.faces.webflow;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import javax.faces.context.PartialViewContext;
import javax.faces.context.PartialViewContextWrapper;
import org.springframework.webflow.execution.RequestContext;
import org.springframework.webflow.execution.RequestContextHolder;
import org.springframework.webflow.execution.View;
/**
* Web Flow {@link PartialViewContext} implementation allowing ids for partial rendering to be specified from the
* server-side. This is done in a flow definition with the <render fragments="..." /> action.
*
* @author Rossen Stoyanchev
*/
public class FlowPartialViewContext extends PartialViewContextWrapper {
private PartialViewContext delegate;
public FlowPartialViewContext(PartialViewContext delegate) {
this.delegate = delegate;
}
@Override
public PartialViewContext getWrapped() {
return delegate;
}
@Override
public void setPartialRequest(boolean isPartialRequest) {
getWrapped().setPartialRequest(isPartialRequest);
}
@Override
public Collection getRenderIds() {
if (JsfUtils.isFlowRequest()) {
RequestContext requestContext = RequestContextHolder.getRequestContext();
String[] fragmentIds = (String[]) requestContext.getFlashScope().get(View.RENDER_FRAGMENTS_ATTRIBUTE);
if (fragmentIds != null && fragmentIds.length > 0) {
return new ArrayList(Arrays.asList(fragmentIds));
}
}
return getWrapped().getRenderIds();
}
}