/*******************************************************************************
* Copyright (c) 2007, 2015 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;
import org.eclipse.core.expressions.IEvaluationContext;
/**
* An element in a UA document, which may have conditional enablement (may be
* filtered based on certain conditions) and may have sub-elements, or children.
*
* @since 3.3
*/
public interface IUAElement {
/**
* Returns whether or not this element should be enabled in the given
* context. Elements may be hidden (filtered) if certain conditions are true.
*
* @param context the context in which the element appears
* @return whether or not the element is enabled in the given context
*/
public boolean isEnabled(IEvaluationContext context);
/**
* Returns all sub-elements (children) of this element.
*
* @return the sub-elements of this element
*/
public IUAElement[] getChildren();
}