w3c.css.properties.css3.CssScrollPaddingInline 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, 2017.
// 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.CssIdent;
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/2019/CR-css-scroll-snap-1-20190319/#propdef-scroll-padding-inline
 */
public class CssScrollPaddingInline extends org.w3c.css.properties.css.CssScrollPaddingInline {

    private CssScrollPaddingInlineStart _longhand_start;
    private CssScrollPaddingInlineEnd _longhand_end;

    protected static final CssIdent auto = CssIdent.getIdent("auto");

    /**
     * Create a new CssScrollPaddingInline
     */
    public CssScrollPaddingInline() {
        value = initial;
        _longhand_end = new CssScrollPaddingInlineEnd();
        _longhand_start = new CssScrollPaddingInlineStart();
    }

    /**
     * Creates a new CssScrollPaddingInline
     *
     * @param expression The expression for this property
     * @throws org.w3c.css.util.InvalidParamException
     *          Expressions are incorrect
     */
    public CssScrollPaddingInline(ApplContext ac, CssExpression expression, boolean check)
            throws InvalidParamException {
        setByUser();
        CssValue val = expression.getValue();
        char op = expression.getOperator();

        if (check && expression.getCount() > 2) {
            throw new InvalidParamException("unrecognize", ac);
        }
        ArrayList values = new ArrayList<>();
        _longhand_end = new CssScrollPaddingInlineEnd();
        _longhand_start = new CssScrollPaddingInlineStart();

        switch (val.getType()) {
            case CssTypes.CSS_NUMBER:
                val.getCheckableValue().checkEqualsZero(ac, this);
            case CssTypes.CSS_LENGTH:
            case CssTypes.CSS_PERCENTAGE:
                val.getCheckableValue().checkPositiveness(ac, this);
                values.add(val);
                _longhand_start.value = val;
                break;
            case CssTypes.CSS_IDENT:
                if (inherit.equals(val)) {
                    if (expression.getCount() > 1) {
                        throw new InvalidParamException("value",
                                expression.getValue(),
                                getPropertyName(), ac);
                    }
                    values.add(inherit);
                    _longhand_start.value = inherit;
                    _longhand_end.value = inherit;
                    break;
                }
                if (auto.equals(val)) {
                    values.add(auto);
                    _longhand_start.value = auto;
                    break;
                }
            default:
                throw new InvalidParamException("value",
                        expression.getValue(),
                        getPropertyName(), ac);
        }
        expression.next();
        if (!expression.end()) {
            if (op != SPACE) {
                throw new InvalidParamException("operator", op,
                        getPropertyName(), ac);
            }
            val = expression.getValue();
            switch (val.getType()) {
                case CssTypes.CSS_NUMBER:
                    val.getCheckableValue().checkEqualsZero(ac, this);
                case CssTypes.CSS_LENGTH:
                case CssTypes.CSS_PERCENTAGE:
                    val.getCheckableValue().checkPositiveness(ac, this);
                    values.add(val);
                    _longhand_end.value = val;
                    break;
                case CssTypes.CSS_IDENT:
                    if (auto.equals(val)) {
                        values.add(auto);
                        _longhand_end.value = auto;
                        break;
                    }
                default:
                    throw new InvalidParamException("value",
                            expression.getValue(),
                            getPropertyName(), ac);
            }
            expression.next();
        }
        value = (values.size() == 1) ? values.get(0) : new CssValueList(values);
    }

    public CssScrollPaddingInline(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);
        _longhand_start.addToStyle(ac, style);
        _longhand_end.addToStyle(ac, style);
    }
}