cz.vutbr.web.csskit.fn.RepeatImpl 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.csskit.fn;

import cz.vutbr.web.css.Term;
import cz.vutbr.web.css.TermFunction;
import cz.vutbr.web.css.TermIdent;
import cz.vutbr.web.css.TermInteger;
import cz.vutbr.web.css.TermList;
import cz.vutbr.web.csskit.TermFunctionImpl;
import java.util.List;

/**
 *
 * @author Petr Mikulík
 */
public class RepeatImpl extends TermFunctionImpl implements TermFunction.Repeat {

    private static final String AUTO_FIT = "auto-fit";
    private static final String AUTO_FILL = "auto-fill";

    private Unit _numberOfRepetitions;
    private List> _repeatedTerms;
    
    public RepeatImpl() {
        setValid(false);
    }

    @Override
    public TermList setValue(List> value) {
        super.setValue(value);
        List>> args = getSeparatedArgs(DEFAULT_ARG_SEP);
        if (args != null && args.size() == 2) {
            if (setNumberOfRepetitions(args.get(0)) && setRepeatedTerms(args.get(1))) {
                setValid(true);
            }
        }
        return this;
    }

    @Override
    public Unit getNumberOfRepetitions() {
        return _numberOfRepetitions;
    }

    @Override
    public List> getRepeatedTerms() {
        return _repeatedTerms;
    }

    private boolean setNumberOfRepetitions(List> argTerms) {
        if (argTerms.size() == 1) {
            Term t = argTerms.get(0);
            if (t instanceof TermInteger) {
                int value = ((TermInteger) t).getIntValue();
                if (value > 0) {
                    _numberOfRepetitions = Unit.createWithNRepetitions(value);
                    return true;
                }
            } else if (t instanceof TermIdent) {
                String value = ((TermIdent) t).getValue();
                if (value.equalsIgnoreCase(AUTO_FIT)) {
                    _numberOfRepetitions = Unit.createWithAutoFit();
                    return true;
                } else if (value.equalsIgnoreCase(AUTO_FILL)) {
                    _numberOfRepetitions = Unit.createWithAutoFill();
                    return true;
                }
            }
        }
        return false;
    }

    private boolean setRepeatedTerms(List> argTerms) {
        _repeatedTerms = argTerms;
        return true;
    }

}