w3c.css.properties.css3.CssGridRow 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
//
// Author: Yves Lafon 
//
// (c) COPYRIGHT MIT, ERCIM, Keio, Beihang, 2016.
// Please first read the full copyright statement in file COPYRIGHT.html
package org.w3c.css.properties.css3;

import org.w3c.css.parser.CssStyle;
import org.w3c.css.util.ApplContext;
import org.w3c.css.util.InvalidParamException;
import org.w3c.css.values.CssExpression;
import org.w3c.css.values.CssTypes;
import org.w3c.css.values.CssValue;
import org.w3c.css.values.CssValueList;

import java.util.ArrayList;

import static org.w3c.css.values.CssOperator.SPACE;

/**
 * @spec https://www.w3.org/TR/2017/CR-css-grid-1-20170209/#propdef-grid-row
 */
public class CssGridRow extends org.w3c.css.properties.css.CssGridRow {

    private CssGridRowStart _start;
    private CssGridRowEnd _end;

    /**
     * Create a new CssGridRow
     */
    public CssGridRow() {
        value = initial;
        _start = new CssGridRowStart();
        _end = new CssGridRowEnd();
    }

    /**
     * Creates a new CssGridRow
     *
     * @param expression The expression for this property
     * @throws org.w3c.css.util.InvalidParamException
     *          Expressions are incorrect
     */
    public CssGridRow(ApplContext ac, CssExpression expression, boolean check)
            throws InvalidParamException {
        CssExpression exp;

        CssValue val;
        char op;
        exp = new CssExpression();
        int nb_switch = 0;

        _start = new CssGridRowStart();
        _end = new CssGridRowEnd();

        ArrayList values = new ArrayList<>();

        while (!expression.end()) {
            val = expression.getValue();
            op = expression.getOperator();

            if (val.getType() == CssTypes.CSS_SWITCH) {
                if (nb_switch > 0) {
                    throw new InvalidParamException("value", val,
                            getPropertyName(), ac);
                }
                values.add(CssGridRowStart.checkGridLine(ac, exp, check, this));
                values.add(val);
                exp = new CssExpression();
                nb_switch++;
            } else {
                exp.addValue(val);
            }
            if (op != SPACE) {
                throw new InvalidParamException("operator", op,
                        getPropertyName(), ac);
            }
            expression.next();
        }
        values.add(CssGridRowStart.checkGridLine(ac, exp, check, this));

        value = (values.size() == 1) ? values.get(0) : new CssValueList(values);
        _start.value = values.get(0);
        // the following is not entirely true (as we need to check that the value is
        // a custom ident), but we just need to warn for a redefinition here.
        _end.value = (values.size() == 1) ? CssGridRowStart.auto : values.get(2);
    }

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

    /**
     * Add this property to the CssStyle.
     *
     * @param style The CssStyle
     */
    public void addToStyle(ApplContext ac, CssStyle style) {
        super.addToStyle(ac, style);
        _start.addToStyle(ac, style);
        _end.addToStyle(ac, style);
    }
}