w3c.css.properties.css3.CssRest Maven / Gradle / Ivy

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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, 2013.
// Please first read the full copyright statement in file COPYRIGHT.html
package org.w3c.css.properties.css3;

import org.w3c.css.util.ApplContext;
import org.w3c.css.util.InvalidParamException;
import org.w3c.css.values.CssExpression;
import org.w3c.css.values.CssOperator;
import org.w3c.css.values.CssValue;
import org.w3c.css.values.CssValueList;

import java.util.ArrayList;

/**
 * @spec http://www.w3.org/TR/2012/CR-css3-speech-20120320/#rest
 */
public class CssRest extends org.w3c.css.properties.css.CssRest {

    /**
     * Create a new CssRest
     */
    public CssRest() {
        cssRestAfter = new CssRestAfter();
        cssRestBefore = new CssRestBefore();
        value = initial;
    }

    /**
     * Creates a new CssRest
     *
     * @param expression The expression for this property
     * @throws org.w3c.css.util.InvalidParamException
     *          Expressions are incorrect
     */
    public CssRest(ApplContext ac, CssExpression expression, boolean check)
            throws InvalidParamException {
        if (check && expression.getCount() > 2) {
            throw new InvalidParamException("unrecognize", ac);
        }
        setByUser();

        char op;

        cssRestBefore = new CssRestBefore(ac, expression, false);
        if (expression.end()) {
            cssRestAfter = new CssRestAfter();
            cssRestAfter.value = cssRestBefore.value;
            value = cssRestBefore.value;
        } else {
            op = expression.getOperator();
            if (op != CssOperator.SPACE) {
                throw new InvalidParamException("operator",
                        ((new Character(op)).toString()), ac);
            }
            cssRestAfter = new CssRestAfter(ac, expression, false);
            if (cssRestBefore.value == inherit || cssRestAfter.value == inherit) {
                throw new InvalidParamException("value",
                        inherit, getPropertyName(), ac);
            }
            ArrayList values = new ArrayList(2);
            values.add(cssRestBefore.value);
            values.add(cssRestAfter.value);
            value = new CssValueList(values);
        }
    }

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