content: /*******************************************************************************
   * Copyright (c) 2000, 2008 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.wst.jsdt.internal.ui.text;
  
  import org.eclipse.core.runtime.IProgressMonitor;
  import org.eclipse.jface.text.IDocument;
  import org.eclipse.jface.text.IRegion;
  import org.eclipse.jface.text.reconciler.DirtyRegion;
  import org.eclipse.jface.text.reconciler.IReconcilingStrategy;
  import org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension;
  
  /**
   * A reconciling strategy consisting of a sequence of internal reconciling strategies.
   * By default, all requests are passed on to the contained strategies.
   *
   * 
   */
  public class CompositeReconcilingStrategy  implements IReconcilingStrategy, IReconcilingStrategyExtension {
  
  	/** The list of internal reconciling strategies. */
  	private IReconcilingStrategy[] fStrategies;
  
  	/**
  	 * Creates a new, empty composite reconciling strategy.
  	 */
  	public CompositeReconcilingStrategy() {
  	}
  
  	/**
  	 * Sets the reconciling strategies for this composite strategy.
  	 *
  	 * @param strategies the strategies to be set or <code>null</code>
  	 */
  	public void setReconcilingStrategies(IReconcilingStrategy[] strategies) {
  		fStrategies= strategies;
  	}
  
  	/**
  	 * Returns the previously set stratgies or <code>null</code>.
  	 *
  	 * @return the contained strategies or <code>null</code>
  	 */
  	public IReconcilingStrategy[] getReconcilingStrategies() {
  		return fStrategies;
  	}
  
  	/*
  	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#setDocument(org.eclipse.jface.text.IDocument)
  	 */
  	public void setDocument(IDocument document) {
  		if (fStrategies == null)
  			return;
  
  		for (int i= 0; i < fStrategies.length; i++)
  			fStrategies[i].setDocument(document);
  	}
  
  	/*
  	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.reconciler.DirtyRegion, org.eclipse.jface.text.IRegion)
  	 */
  	public void reconcile(DirtyRegion dirtyRegion, IRegion subRegion) {
  		if (fStrategies == null)
  			return;
  
  		for (int i= 0; i < fStrategies.length; i++)
  			fStrategies[i].reconcile(dirtyRegion, subRegion);
  	}
  
  	/*
  	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategy#reconcile(org.eclipse.jface.text.IRegion)
  	 */
  	public void reconcile(IRegion partition) {
  		if (fStrategies == null)
  			return;
  
  		for (int i= 0; i < fStrategies.length; i++)
  			fStrategies[i].reconcile(partition);
  	}
  
  	/*
  	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#setProgressMonitor(org.eclipse.core.runtime.IProgressMonitor)
  	 */
  	public void setProgressMonitor(IProgressMonitor monitor) {
  		if (fStrategies == null)
  			return;
  
  		for (int i=0; i < fStrategies.length; i++) {
  			if (fStrategies[i] instanceof IReconcilingStrategyExtension) {
  				IReconcilingStrategyExtension extension= (IReconcilingStrategyExtension) fStrategies[i];
  				extension.setProgressMonitor(monitor);
  			}
  		}
  	}
  
  	/*
  	 * @see org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension#initialReconcile()
  	 */
  	public void initialReconcile() {
  		if (fStrategies == null)
  			return;
  
  		for (int i=0; i < fStrategies.length; i++) {
  			if (fStrategies[i] instanceof IReconcilingStrategyExtension) {
  				IReconcilingStrategyExtension extension= (IReconcilingStrategyExtension) fStrategies[i];
  				extension.initialReconcile();
  			}
  		}
  	}
  }
  