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Styled XML parser is used by iText modules to parse HTML and XML
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/*
    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.resolve;

import com.itextpdf.styledxmlparser.css.CommonCssConstants;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

/**
 * Helper class that allows you to check if a property is inheritable.
 */
public class CssInheritance implements IStyleInheritance {

    /**
     * Set of inheritable properties
     * in accordance with "http://www.w3schools.com/cssref/"
     * and "https://developer.mozilla.org/en-US/docs/Web/CSS/Reference"
     */
    private static final Set INHERITABLE_PROPERTIES = Collections.unmodifiableSet(new HashSet<>(Arrays.asList(

            // Color Properties
            CommonCssConstants.COLOR,

            // Basic Box Properties
            CommonCssConstants.VISIBILITY,

            // Text Properties
            CommonCssConstants.HANGING_PUNCTUATION,
            CommonCssConstants.HYPHENS,
            CommonCssConstants.LETTER_SPACING,
            CommonCssConstants.LINE_HEIGHT,
            CommonCssConstants.OVERFLOW_WRAP,
            CommonCssConstants.TAB_SIZE,
            CommonCssConstants.TEXT_ALIGN,
            CommonCssConstants.TEXT_ALIGN_LAST,
            CommonCssConstants.TEXT_INDENT,
            CommonCssConstants.TEXT_JUSTIFY,
            CommonCssConstants.TEXT_TRANSFORM,
            CommonCssConstants.WHITE_SPACE,
            CommonCssConstants.WORD_BREAK,
            CommonCssConstants.WORD_SPACING,
            CommonCssConstants.WORDWRAP,

            // Text Decoration Properties
            CommonCssConstants.TEXT_SHADOW,
            CommonCssConstants.TEXT_UNDERLINE_POSITION,

            // Font Properties
            CommonCssConstants.FONT,
            CommonCssConstants.FONT_FAMILY,
            CommonCssConstants.FONT_FEATURE_SETTINGS,
            CommonCssConstants.FONT_KERNING,
            CommonCssConstants.FONT_LANGUAGE_OVERRIDE,
            CommonCssConstants.FONT_SIZE,
            CommonCssConstants.FONT_SIZE_ADJUST,
            CommonCssConstants.FONT_STRETCH,
            CommonCssConstants.FONT_STYLE,
            CommonCssConstants.FONT_SYNTHESIS,
            CommonCssConstants.FONT_VARIANT,
            CommonCssConstants.FONT_VARIANT_ALTERNATES,
            CommonCssConstants.FONT_VARIANT_CAPS,
            CommonCssConstants.FONT_VARIANT_EAST_ASIAN,
            CommonCssConstants.FONT_VARIANT_LIGATURES,
            CommonCssConstants.FONT_VARIANT_NUMERIC,
            CommonCssConstants.FONT_VARIANT_POSITION,
            CommonCssConstants.FONT_WEIGHT,

            // Writing Modes Properties
            CommonCssConstants.DIRECTION,
            CommonCssConstants.TEXT_ORIENTATION,
            CommonCssConstants.TEXT_COMBINE_UPRIGHT,
            CommonCssConstants.UNICODE_BIDI,
            CommonCssConstants.WRITING_MODE,

            // Table Properties
            CommonCssConstants.BORDER_COLLAPSE,
            CommonCssConstants.BORDER_SPACING,
            CommonCssConstants.CAPTION_SIDE,
            CommonCssConstants.EMPTY_CELLS,

            // Lists and Counters Properties
            CommonCssConstants.LIST_STYLE,
            CommonCssConstants.LIST_STYLE_IMAGE,
            CommonCssConstants.LIST_STYLE_POSITION,
            CommonCssConstants.LIST_STYLE_TYPE,

            // Generated Content for Paged Media
            CommonCssConstants.QUOTES,

            CommonCssConstants.ORPHANS,
            CommonCssConstants.WIDOWS
    )));

    /**
     * Checks if a property is inheritable.
     *
     * @param cssProperty the CSS property
     * @return true, if the property is inheritable
     */
    @Override
    public boolean isInheritable(String cssProperty) {
        return INHERITABLE_PROPERTIES.contains(cssProperty);
    }
}