w3c.css.properties.css3.CssTextEmphasisPosition 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 and Keio University, 2012.
// 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.CssIdent;
import org.w3c.css.values.CssOperator;
import org.w3c.css.values.CssTypes;
import org.w3c.css.values.CssValue;
import org.w3c.css.values.CssValueList;

import java.util.ArrayList;

/**
 * @spec http://www.w3.org/TR/2013/WD-css-text-decor-3-20130103/#text-emphasis-position
 */
public class CssTextEmphasisPosition extends org.w3c.css.properties.css.CssTextEmphasisPosition {

    public static final CssIdent[] vertValues;
    public static final CssIdent[] horiValues;

    static {
        String[] _vertValues = {"over", "under"};
        String[] _horiValues = {"right", "left"};

        vertValues = new CssIdent[_vertValues.length];
        int i = 0;
        for (String s : _vertValues) {
            vertValues[i++] = CssIdent.getIdent(s);
        }
        horiValues = new CssIdent[_horiValues.length];
        i = 0;
        for (String s : _horiValues) {
            horiValues[i++] = CssIdent.getIdent(s);
        }
    }

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

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

    public static final CssIdent getAllowedValue(CssIdent ident) {
        CssIdent v = getVerticalValues(ident);
        if (v == null) {
            v = getHorizontalValues(ident);
        }
        return v;
    }

    /**
     * Create a new CssTextEmphasisPosition
     */
    public CssTextEmphasisPosition() {
        value = initial;
    }

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

        CssValue val;
        char op;

        CssIdent vValue = null;
        CssIdent hValue = null;

        val = expression.getValue();
        op = expression.getOperator();

        if (val.getType() != CssTypes.CSS_IDENT) {
            throw new InvalidParamException("value",
                    val.toString(),
                    getPropertyName(), ac);
        }

        CssIdent ident = (CssIdent) val;
        if (inherit.equals(ident)) {
            value = inherit;
            if (check && expression.getCount() != 1) {
                throw new InvalidParamException("value",
                        val.toString(),
                        getPropertyName(), ac);
            }
        } else {
            boolean match = false;
            int nbgot = 0;
            do {
                match = false;
                if (vValue == null) {
                    vValue = getVerticalValues(ident);
                    match = (vValue != null);
                }
                if (!match && hValue == null) {
                    hValue = getHorizontalValues(ident);
                    match = (hValue != null);
                }
                if (!match) {
                    throw new InvalidParamException("value",
                            val.toString(),
                            getPropertyName(), ac);
                }
                nbgot++;
                if (expression.getRemainingCount() == 1 || (!check && nbgot == 2)) {
                    // if we have both, exit
                    // (needed only if check == false...
                    break;
                }
                if (op != CssOperator.SPACE) {
                    throw new InvalidParamException("operator",
                            ((new Character(op)).toString()), ac);
                }
                expression.next();
                val = expression.getValue();
                op = expression.getOperator();
                if (val.getType() != CssTypes.CSS_IDENT) {
                    throw new InvalidParamException("value",
                            val.toString(),
                            getPropertyName(), ac);
                }
                ident = (CssIdent) val;
            } while (!expression.end());
            // now construct the value
            if (hValue != null && vValue != null) {
                ArrayList v = new ArrayList(2);
                v.add(vValue);
                v.add(hValue);
                value = new CssValueList(v);
            } else {
                // TODO FIXME specific error (one value missing)
                throw new InvalidParamException("value",
                        expression.toString(),
                        getPropertyName(), ac);
            }
        }
        expression.next();
    }

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


}