com.itextpdf.styledxmlparser.css.selector.item.CssClassSelectorItem Maven / Gradle / Ivy

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Styled XML parser is used by iText modules to parse HTML and XML

There is a newer version: 8.0.4

/*
    This file is part of the iText (R) project.
    Copyright (c) 1998-2024 Apryse Group NV
    Authors: Apryse Software.

    This program is offered under a commercial and under the AGPL license.
    For commercial licensing, contact us at https://itextpdf.com/sales.  For AGPL licensing, see below.

    AGPL licensing:
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU Affero General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Affero General Public License for more details.

    You should have received a copy of the GNU Affero General Public License
    along with this program.  If not, see .
 */
package com.itextpdf.styledxmlparser.css.selector.item;


import com.itextpdf.styledxmlparser.CommonAttributeConstants;
import com.itextpdf.styledxmlparser.node.ICustomElementNode;
import com.itextpdf.styledxmlparser.node.IDocumentNode;
import com.itextpdf.styledxmlparser.node.IElementNode;
import com.itextpdf.styledxmlparser.node.INode;

/**
 * {@link ICssSelectorItem} implementation for class selectors.
 */
public class CssClassSelectorItem implements ICssSelectorItem {

    /** The class name. */
    private String className;

    /**
     * Creates a new {@link CssClassSelectorItem} instance.
     *
     * @param className the class name
     */
    public CssClassSelectorItem(String className) {
        this.className = className;
    }

    /* (non-Javadoc)
     * @see com.itextpdf.styledxmlparser.css.selector.item.ICssSelectorItem#getSpecificity()
     */
    @Override
    public int getSpecificity() {
        return CssSpecificityConstants.CLASS_SPECIFICITY;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return "." + className;
    }

    /* (non-Javadoc)
     * @see com.itextpdf.styledxmlparser.css.selector.item.ICssSelectorItem#matches(com.itextpdf.styledxmlparser.html.node.INode)
     */
    @Override
    public boolean matches(INode node) {
        if (!(node instanceof IElementNode) || node instanceof ICustomElementNode || node instanceof IDocumentNode) {
            return false;
        }
        IElementNode element = (IElementNode) node;
        String classAttr = element.getAttribute(CommonAttributeConstants.CLASS);
        if (classAttr != null && classAttr.length() > 0) {
            String[] classNames = classAttr.split(" ");
            for (String currClassName: classNames)
                if (this.className.equals(currClassName.trim()))
                    return true;
        }
        return false;
    }
}