/*
 * Copyright, 2009 Koichi Takahashi. All Rights Reserved.
 * 
 * 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 com.nec.exi.editor;

import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.ITextDoubleClickStrategy;
import org.eclipse.jface.text.TextAttribute;
import org.eclipse.jface.text.presentation.IPresentationReconciler;
import org.eclipse.jface.text.presentation.PresentationReconciler;
import org.eclipse.jface.text.rules.DefaultDamagerRepairer;
import org.eclipse.jface.text.rules.Token;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.text.source.SourceViewerConfiguration;

/**
 * @author Koichi Takahashi
 */
public class XMLConfiguration extends SourceViewerConfiguration {
	private XMLDoubleClickStrategy doubleClickStrategy;
	private XMLTagScanner tagScanner;
	private XMLScanner scanner;
	private ColorManager colorManager;

	public XMLConfiguration(ColorManager colorManager) {
		this.colorManager = colorManager;
	}
	public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {
		return new String[] {
			IDocument.DEFAULT_CONTENT_TYPE,
			XMLPartitionScanner.XML_COMMENT,
			XMLPartitionScanner.XML_TAG };
	}
	public ITextDoubleClickStrategy getDoubleClickStrategy(
		ISourceViewer sourceViewer,
		String contentType) {
		if (doubleClickStrategy == null)
			doubleClickStrategy = new XMLDoubleClickStrategy();
		return doubleClickStrategy;
	}

	protected XMLScanner getXMLScanner() {
		if (scanner == null) {
			scanner = new XMLScanner(colorManager);
			scanner.setDefaultReturnToken(
				new Token(
					new TextAttribute(
						colorManager.getColor(IXMLColorConstants.DEFAULT))));
		}
		return scanner;
	}
	protected XMLTagScanner getXMLTagScanner() {
		if (tagScanner == null) {
			tagScanner = new XMLTagScanner(colorManager);
			tagScanner.setDefaultReturnToken(
				new Token(
					new TextAttribute(
						colorManager.getColor(IXMLColorConstants.TAG))));
		}
		return tagScanner;
	}

	public IPresentationReconciler getPresentationReconciler(ISourceViewer sourceViewer) {
		PresentationReconciler reconciler = new PresentationReconciler();

		DefaultDamagerRepairer dr =
			new DefaultDamagerRepairer(getXMLTagScanner());
		reconciler.setDamager(dr, XMLPartitionScanner.XML_TAG);
		reconciler.setRepairer(dr, XMLPartitionScanner.XML_TAG);

		dr = new DefaultDamagerRepairer(getXMLScanner());
		reconciler.setDamager(dr, IDocument.DEFAULT_CONTENT_TYPE);
		reconciler.setRepairer(dr, IDocument.DEFAULT_CONTENT_TYPE);

		NonRuleBasedDamagerRepairer ndr =
			new NonRuleBasedDamagerRepairer(
				new TextAttribute(
					colorManager.getColor(IXMLColorConstants.XML_COMMENT)));
		reconciler.setDamager(ndr, XMLPartitionScanner.XML_COMMENT);
		reconciler.setRepairer(ndr, XMLPartitionScanner.XML_COMMENT);

		return reconciler;
	}

}