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

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//
// Author: Yves Lafon 
//
// (c) COPYRIGHT MIT, ERCIM, Keio, Beihang, 2015.
// 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.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 http://www.w3.org/TR/2015/CR-css-ui-3-20150707/#propdef-text-overflow
 */
public class CssTextOverflow extends org.w3c.css.properties.css.CssTextOverflow {

    public static final CssIdent[] allowed_values;

    static {
        String[] _allowed_values = {"clip", "ellipsis"};
        allowed_values = new CssIdent[_allowed_values.length];
        int i = 0;
        for (String s : _allowed_values) {
            allowed_values[i++] = CssIdent.getIdent(s);
        }
    }

    public static CssIdent getAllowedIdent(CssIdent ident) {
        for (CssIdent id : allowed_values) {
            if (id.equals(ident)) {
                return id;
            }
        }
        return null;
    }

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

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


        if (check && expression.getCount() > 2) {
            throw new InvalidParamException("unrecognize", ac);
        }

        setByUser();

        CssValue val;
        char op;
        ArrayList values = new ArrayList<>(4);

        while (!expression.end()) {
            val = expression.getValue();
            op = expression.getOperator();
            switch (val.getType()) {
                case CssTypes.CSS_STRING:
                    values.add(val);
                    break;
                case CssTypes.CSS_IDENT:
                    if (inherit.equals(val)) {
                        if (expression.getCount() > 1) {
                            throw new InvalidParamException("value",
                                    inherit.toString(),
                                    getPropertyName(), ac);
                        }
                        values.add(inherit);
                        break;
                    }
                    CssIdent match = getAllowedIdent((CssIdent) val);
                    if (match != null) {
                        values.add(match);
                        break;
                    }
                    // unrecognized, let it fail
                default:
                    throw new InvalidParamException("value",
                            val.toString(),
                            getPropertyName(), ac);
            }
            if (op != SPACE) {
                throw new InvalidParamException("operator",
                        ((new Character(op)).toString()), ac);
            }
            expression.next();

        }
        value = (values.size() == 1) ? values.get(0) : new CssValueList(values);
    }

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