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

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//
// 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.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-gap
 */
public class CssGridGap extends org.w3c.css.properties.css.CssGridGap {

    private CssGridColumnGap column;
    private CssGridRowGap row;

    /**
     * Create a new CssGridGap
     */
    public CssGridGap() {
        value = initial;
        column = new CssGridColumnGap();
        row = new CssGridRowGap();
    }

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

        CssValue val;
        // get the separator now in case we need it.
        char op = expression.getOperator();
        // create the values we will fill
        column = new CssGridColumnGap();
        row = new CssGridRowGap();

        val = CssGridRowGap.checkSyntax(ac, expression, false, this);
        row.value = val;
        if (!expression.end()) {
            if (op != SPACE) {
                throw new InvalidParamException("operator",
                        ((new Character(op)).toString()), ac);
            }
            // inherit can only be alone
            if (inherit.equals(val)) {
                throw new InvalidParamException("value", val.toString(),
                        getPropertyName(), ac);
            }
            val = CssGridRowGap.checkSyntax(ac, expression, false, this);
            column.value = val;
            ArrayList v = new ArrayList<>(2);
            v.add(row.value);
            v.add(column.value);
            value = new CssValueList(v);
        } else {
            value = val;
            row.value = val;
        }
    }

    public CssGridGap(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);
        column.addToStyle(ac, style);
        row.addToStyle(ac, style);
    }
}