cz.vutbr.web.domassign.decode.BorderVariator Maven / Gradle / Ivy

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jStyleParser is a CSS parser written in Java. It has its own application interface that is designed to allow an efficient CSS processing in Java and mapping the values to the Java data types. It parses CSS 2.1 style sheets into structures that can be efficiently assigned to DOM elements. It is intended be the primary CSS parser for the CSSBox library. While handling errors, it is user agent conforming according to the CSS specification.

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/**
 * 
 */
package cz.vutbr.web.domassign.decode;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import cz.vutbr.web.css.CSSProperty;
import cz.vutbr.web.css.Term;
import cz.vutbr.web.css.TermIdent;
import cz.vutbr.web.css.CSSProperty.BorderColor;
import cz.vutbr.web.css.CSSProperty.BorderStyle;
import cz.vutbr.web.css.CSSProperty.BorderWidth;

/**
 * Border variator. Grammar: [  ||  ||
 *  ] | inherit
 * 
 * @author kapy
 * 
 */
public class BorderVariator extends Variator {

    public static final int WIDTH = 0;
    public static final int STYLE = 1;
    public static final int COLOR = 2;

    private List repeaters;

    public BorderVariator() {
        super(3);
        types.add(BorderWidth.class);
        types.add(BorderStyle.class);
        types.add(BorderColor.class);
        repeaters = new ArrayList(variants);
        repeaters.add(new BorderWidthRepeater());
        repeaters.add(new BorderStyleRepeater());
        repeaters.add(new BorderColorRepeater());
    }

    @Override
    protected boolean variant(int variant, IntegerRef iteration,
            Map properties, Map> values) {

        // iteration is not modified in this function
        int i = iteration.get();
        Term term = terms.get(i);
        Repeater r;

        switch (variant) {
        case WIDTH:
            r = repeaters.get(WIDTH);
            r.assignTerms(term, term, term, term);
            return r.repeat(properties, values);
        case STYLE:
            r = repeaters.get(STYLE);
            r.assignTerms(term, term, term, term);
            return r.repeat(properties, values);
        case COLOR:
            r = repeaters.get(COLOR);
            r.assignTerms(term, term, term, term);
            return r.repeat(properties, values);
        default:
            return false;
        }
    }

    /**
     * This method is overriden to use repeaters
     */
    @Override
    protected boolean checkInherit(int variant, Term term,
            Map properties) {

        // check whether term equals inherit
        if (!(term instanceof TermIdent)
                || !CSSProperty.INHERIT_KEYWORD
                        .equalsIgnoreCase(((TermIdent) term).getValue())) {
            return false;
        }

        if (variant == ALL_VARIANTS) {
            for (int i = 0; i < variants; i++) {
                Repeater r = repeaters.get(i);
                r.assignTerms(term, term, term, term);
                r.repeat(properties, null);
            }
            return true;
        }

        Repeater r = repeaters.get(variant);
        r.assignTerms(term, term, term, term);
        r.repeat(properties, null);
        return true;
    }

    @Override
    public void assignDefaults(Map properties, Map> values)
    {
        for (Repeater r : repeaters)
            r.assignDefaults(properties, values);
    }

}