/*
 * Copyright 2011 by Graz University of Technology, Austria
 * MOCCA has been developed by the E-Government Innovation Center EGIZ, a joint
 * initiative of the Federal Chancellery Austria and Graz University of Technology.
 *
 * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
 * the European Commission - subsequent versions of the EUPL (the "Licence");
 * You may not use this work except in compliance with the Licence.
 * You may obtain a copy of the Licence at:
 * http://www.osor.eu/eupl/
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Licence is distributed on an "AS IS" basis,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Licence for the specific language governing permissions and
 * limitations under the Licence.
 *
 * This product combines work with different licenses. See the "NOTICE" text
 * file for details on the various modules and licenses.
 * The "NOTICE" text file is part of the distribution. Any derivative works
 * that you distribute must include a readable copy of the "NOTICE" text file.
 */


package at.gv.egiz.bku.slxhtml.css;

import org.w3c.css.properties.css1.CssFontCSS2;
import org.w3c.css.properties.css1.CssFontConstantCSS2;
import org.w3c.css.util.ApplContext;
import org.w3c.css.util.InvalidParamException;
import org.w3c.css.values.CssExpression;
import org.w3c.css.values.CssIdent;
import org.w3c.css.values.CssValue;

public class CssFontSLXHTML extends CssFontCSS2 {

  public CssFontSLXHTML() {
  }

  public CssFontSLXHTML(ApplContext ac, CssExpression expression, boolean check)
      throws InvalidParamException {
    super(ac, checkExpression(expression, ac), check);
  }

  public CssFontSLXHTML(ApplContext ac, CssExpression expression)
      throws InvalidParamException {
    this(ac, expression, false);
  }

  protected static CssExpression checkExpression(CssExpression expression,
      ApplContext ac) throws InvalidParamException {
    
    CssValue value = expression.getValue();
    
    if (value instanceof CssIdent) {
      for (String font : CssFontConstantCSS2.FONT) {
        if (font.equalsIgnoreCase(value.toString())) {
          throw new SLXHTMLInvalidParamException("font", value.toString(), ac);
        }
      }
    }
    
    return expression;
    
  }
  
}