/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package net.sourceforge.phpeclipse.wiki.editor;

import net.sourceforge.phpeclipse.wiki.editor.model.WikipediaOutlineParser;
import net.sourceforge.phpeclipse.wiki.editor.model.WikipediaSection;

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;
import org.eclipse.swt.widgets.Shell;



public class WikiReconcilingStrategy implements IReconcilingStrategy, IReconcilingStrategyExtension {

	private WikiEditor fEditor;
	private IDocument fDocument;
	private IProgressMonitor fProgressMonitor;
	
	private WikipediaOutlineParser fParser;
	private WikiFoldingStructureProvider fFoldingStructureProvider;

	public WikiReconcilingStrategy(WikiEditor editor) {
		fEditor= editor;
		fParser= new WikipediaOutlineParser();
		fFoldingStructureProvider= new WikiFoldingStructureProvider(editor);
	}

	public void setDocument(IDocument document) {
		fDocument= document;
		fFoldingStructureProvider.setDocument(fDocument);
	}

	public void setProgressMonitor(IProgressMonitor monitor) {
		fProgressMonitor= monitor;
		fFoldingStructureProvider.setProgressMonitor(fProgressMonitor);
	}

	public void reconcile(DirtyRegion dirtyRegion, IRegion subRegion) {
		reconcile();
	}

	public void reconcile(IRegion partition) {
		reconcile();
	}

	public void initialReconcile() {
		reconcile();
	}

	private void reconcile() {
		final WikipediaSection section= fParser.parse(fDocument);
		if (section == null)
			return;
		
		Shell shell= fEditor.getSite().getShell();
		if (shell == null || shell.isDisposed())
			return;
		
		shell.getDisplay().asyncExec(new Runnable() {
			public void run() {
				fEditor.setSection(section);
			}
		});
		fFoldingStructureProvider.updateFoldingRegions(section);
	}
}