/*******************************************************************************
* Copyright (c) 2006, 2007 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.help.internal.dynamic;
import org.eclipse.core.expressions.IEvaluationContext;
import org.eclipse.help.UAContentFilter;
import org.eclipse.help.internal.UAElement;
/*
* The handler responsible for filtering elements. Filters can either be
* an attribute of the element to filter, or any number of child filter
* elements.
*/
public class FilterHandler extends ProcessorHandler {
private IEvaluationContext context;
public FilterHandler(IEvaluationContext context) {
this.context = context;
}
public short handle(UAElement element, String id) {
if (UAContentFilter.isFiltered(element, context)) {
UAElement parent = element.getParentElement();
if (parent != null) {
parent.removeChild(element);
}
return HANDLED_SKIP;
}
return UNHANDLED;
}
}