w3c.css.properties.css2.CssFontWeight Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of cssvalidator Show documentation
Backend for the W3C CSS Validation Service
There is a newer version: 1.0.8
// $Id$
// Author: Yves Lafon 
//
// (c) COPYRIGHT MIT, ERCIM and Keio University, 2012.
// Please first read the full copyright statement in file COPYRIGHT.html
package org.w3c.css.properties.css2;

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.CssNumber;
import org.w3c.css.values.CssTypes;
import org.w3c.css.values.CssValue;

/**
 * @spec http://www.w3.org/TR/2008/REC-CSS2-20080411/fonts.html#propdef-font-weight
 */
public class CssFontWeight extends org.w3c.css.properties.css.CssFontWeight {

    public static final CssIdent[] allowed_values;
    static final String[] _allowed_values = {"normal", "bold", "bolder", "lighter"};

    static {
        allowed_values = new CssIdent[_allowed_values.length];
        for (int i = 0; i < allowed_values.length; i++) {
            allowed_values[i] = CssIdent.getIdent(_allowed_values[i]);
        }
    }

    public static final CssIdent getAllowedValue(CssIdent ident) {
        for (CssIdent id : allowed_values) {
            if (id.equals(ident)) {
                return id;
            }
        }
        return null;
    }


    /**
     * Create a new CssFontWeight
     */
    public CssFontWeight() {
    }

    /**
     * Creates a new CssFontWeight
     *
     * @param expression The expression for this property
     * @throws org.w3c.css.util.InvalidParamException
     *          Expressions are incorrect
     */
    public CssFontWeight(ApplContext ac, CssExpression expression, boolean check)
            throws InvalidParamException {
        if (check && expression.getCount() > 1) {
            throw new InvalidParamException("unrecognize", ac);
        }
        setByUser();

        CssValue val;
        char op;

        val = expression.getValue();
        op = expression.getOperator();

        switch (val.getType()) {
            case CssTypes.CSS_NUMBER:
                CssNumber num = (CssNumber) val;
                switch (num.getInt()) {
                    case 100:
                    case 200:
                    case 300:
                    case 400:
                    case 500:
                    case 600:
                    case 700:
                    case 800:
                    case 900:
                        value = num;
                        break;
                    default:
                        throw new InvalidParamException("value",
                                val.toString(),
                                getPropertyName(), ac);
                }
                break;
            case CssTypes.CSS_IDENT:
                CssIdent ident = (CssIdent) val;
                if (inherit.equals(ident)) {
                    value = inherit;
                    break;
                }
                value = getAllowedValue(ident);
                if (value == null) {
                    throw new InvalidParamException("value",
                            val.toString(),
                            getPropertyName(), ac);
                }
                break;
            default:
                throw new InvalidParamException("value",
                        expression.getValue().toString(),
                        getPropertyName(), ac);
        }
        expression.next();
    }

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

}