/*
 This file belongs to the Servoy development and deployment environment, Copyright (C) 1997-2011 Servoy BV

 This program is free software; you can redistribute it and/or modify it under
 the terms of the GNU Affero General Public License as published by the Free
 Software Foundation; either version 3 of the License, or (at your option) any
 later version.

 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

 You should have received a copy of the GNU Affero General Public License along
 with this program; if not, see http://www.gnu.org/licenses or write to the Free
 Software Foundation,Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
*/

package com.servoy.j2db.util;

import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;

import org.xhtmlrenderer.css.extend.StylesheetFactory;
import org.xhtmlrenderer.css.parser.CSSErrorHandler;
import org.xhtmlrenderer.css.parser.CSSParser;
import org.xhtmlrenderer.css.sheet.Ruleset;
import org.xhtmlrenderer.css.sheet.Stylesheet;
import org.xhtmlrenderer.css.sheet.StylesheetInfo;

public class ServoyStylesheetFactor implements StylesheetFactory
{
	private final CSSParser parser;
	private final CSSErrorHandler errorHandler;
	
	public ServoyStylesheetFactor(CSSErrorHandler errorHandler) {
		this.errorHandler = errorHandler;
		parser = new CSSParser(errorHandler);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.xhtmlrenderer.css.extend.StylesheetFactory#parse(java.io.Reader, org.xhtmlrenderer.css.sheet.StylesheetInfo)
	 */
	public Stylesheet parse(Reader reader, StylesheetInfo info)
	{
		try
		{
			return parser.parseStylesheet(info.getUri(), info.getOrigin(), reader);
		}
		catch (IOException e)
		{
			errorHandler.error(info.getUri(), e.getMessage());
		}
		return null;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.xhtmlrenderer.css.extend.StylesheetFactory#parseStyleDeclaration(int, java.lang.String)
	 */
	public Ruleset parseStyleDeclaration(int author, String style)
	{
		return parser.parseDeclaration(author, style);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.xhtmlrenderer.css.extend.StylesheetFactory#getStylesheet(org.xhtmlrenderer.css.sheet.StylesheetInfo)
	 */
	public Stylesheet getStylesheet(StylesheetInfo si)
	{
		return parse(new StringReader(si.getContent()), si);
	}

}