w3c.css.properties.css2.CssPageBreakBefore 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, Keio University, Beihang University 2014.
// 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.CssTypes;
import org.w3c.css.values.CssValue;

/**
 * @spec http://www.w3.org/TR/2008/REC-CSS2-20080411/page.html#propdef-page-break-before
 */
public class CssPageBreakBefore extends org.w3c.css.properties.css.CssPageBreakBefore {

    public static final CssIdent[] allowed_values;

    static {
        String[] _allowed_values = {"auto", "always", "avoid", "left", "right"};
        int i = 0;
        allowed_values = new CssIdent[_allowed_values.length];
        for (String s : _allowed_values) {
            allowed_values[i++] = CssIdent.getIdent(s);
        }
    }

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

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

    /**
     * Creates a new CssPageBreakBefore
     *
     * @param expression The expression for this property
     * @throws org.w3c.css.util.InvalidParamException
     *          Expressions are incorrect
     */
    public CssPageBreakBefore(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();

        if (val.getType() == CssTypes.CSS_IDENT) {
            CssIdent id = (CssIdent) val;
            if (inherit.equals(id)) {
                value = inherit;
            } else {
                value = getAllowedIdent(id);
                if (value == null) {
                    throw new InvalidParamException("value",
                            val.toString(),
                            getPropertyName(), ac);
                }
            }
        } else {
            throw new InvalidParamException("value",
                    val.toString(),
                    getPropertyName(), ac);
        }
        expression.next();
    }

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