w3c.css.properties.css3.CssVoiceVolume 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, 2013.
// 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/2012/CR-css3-speech-20120320/#voice-volume
 */
public class CssVoiceVolume extends org.w3c.css.properties.css.CssVoiceVolume {

    public static final CssIdent[] allowed_values;
    public static final CssIdent silent;

    static {
        silent = CssIdent.getIdent("silent");

        String[] _allowed_values = {"x-soft", "soft", "medium", "loud", "x-loud"};
        int i = 0;
        allowed_values = new CssIdent[_allowed_values.length];
        for (String s : _allowed_values) {
            allowed_values[i++] = CssIdent.getIdent(s);
        }
    }

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

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

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

        CssValue val;
        char op;

        CssValue dbValue = null;
        CssValue ideValue = null;

        while (!expression.end()) {
            val = expression.getValue();
            op = expression.getOperator();
            switch (val.getType()) {
                case CssTypes.CSS_NUMBER:
                    // only 0 can be a velue
                    val.getCheckableValue().checkEqualsZero(ac, this);
                case CssTypes.CSS_VOLUME:
                    if (dbValue != null) {
                        throw new InvalidParamException("value",
                                val.toString(),
                                getPropertyName(), ac);
                    }
                    dbValue = val;
                    break;
                case CssTypes.CSS_IDENT:
                    CssIdent id = (CssIdent) val;
                    if (inherit.equals(id)) {
                        if (expression.getCount() > 1) {
                            throw new InvalidParamException("value",
                                    inherit,
                                    getPropertyName(), ac);
                        }
                        value = inherit;
                        break;
                    } else if (silent.equals(id)) {
                        if (expression.getCount() > 1) {
                            throw new InvalidParamException("value",
                                    silent,
                                    getPropertyName(), ac);
                        }
                        value = silent;
                        break;
                    } else {
                        if (ideValue == null) {
                            ideValue = getAllowedIdent(id);
                            if (ideValue != null) {
                                break;
                            }
                        }
                    }
                default:
                    throw new InvalidParamException("value",
                            val.toString(),
                            getPropertyName(), ac);
            }
            if (op != SPACE) {
                throw new InvalidParamException("operator",
                        ((new Character(op)).toString()), ac);
            }
            expression.next();
        }
        // now check what we have...
        if (value != inherit && value != silent) {
            ArrayList v = new ArrayList(2);
            if (ideValue != null) {
                v.add(ideValue);
            }
            if (dbValue != null) {
                v.add(dbValue);
            }
            value = (v.size() == 1) ? v.get(0) : new CssValueList(v);
        }
    }

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