1 files changed, 0 insertions, 196 deletions
diff --git a/ext/js/dom/sandbox/css-style-applier.js b/ext/js/dom/sandbox/css-style-applier.js
deleted file mode 100644
index ea3f1a28..00000000
--- a/ext/js/dom/sandbox/css-style-applier.js
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * Copyright (C) 2023-2024  Yomitan Authors
- * Copyright (C) 2021-2022  Yomichan Authors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-import {readResponseJson} from '../../core/json.js';
-
-/**
- * This class is used to apply CSS styles to elements using a consistent method
- * that is the same across different browsers.
- */
-export class CssStyleApplier {
-    /**
-     * Creates a new instance of the class.
-     * @param {string} styleDataUrl The local URL to the JSON file continaing the style rules.
-     *   The style rules should follow the format of `CssStyleApplierRawStyleData`.
-     */
-    constructor(styleDataUrl) {
-        /** @type {string} */
-        this._styleDataUrl = styleDataUrl;
-        /** @type {import('css-style-applier').CssRule[]} */
-        this._styleData = [];
-        /** @type {Map<string, import('css-style-applier').CssRule[]>} */
-        this._cachedRules = new Map();
-        /** @type {RegExp} */
-        this._patternHtmlWhitespace = /[\t\r\n\f ]+/g;
-        /** @type {RegExp} */
-        this._patternClassNameCharacter = /[0-9a-zA-Z-_]/;
-    }
-
-    /**
-     * Loads the data file for use.
-     */
-    async prepare() {
-        /** @type {import('css-style-applier').RawStyleData} */
-        let rawData = [];
-        try {
-            rawData = await this._fetchJsonAsset(this._styleDataUrl);
-        } catch (e) {
-            // eslint-disable-next-line no-console
-            console.error(e);
-        }
-        const styleData = this._styleData;
-        styleData.length = 0;
-        for (const {selectors, styles} of rawData) {
-            const selectors2 = selectors.join(',');
-            const styles2 = [];
-            for (const [property, value] of styles) {
-                styles2.push({property, value});
-            }
-            styleData.push({
-                selectors: selectors2,
-                styles: styles2
-            });
-        }
-    }
-
-    /**
-     * Applies CSS styles directly to the "style" attribute using the "class" attribute.
-     * This only works for elements with a single class.
-     * @param {Iterable<HTMLElement>} elements An iterable collection of HTMLElement objects.
-     */
-    applyClassStyles(elements) {
-        const elementStyles = [];
-        for (const element of elements) {
-            const className = element.getAttribute('class');
-            if (className === null || className.length === 0) { continue; }
-            let cssTextNew = '';
-            for (const {selectors, styles} of this._getCandidateCssRulesForClass(className)) {
-                if (!element.matches(selectors)) { continue; }
-                cssTextNew += this._getCssText(styles);
-            }
-            cssTextNew += element.style.cssText;
-            elementStyles.push({element, style: cssTextNew});
-        }
-        for (const {element, style} of elementStyles) {
-            element.removeAttribute('class');
-            if (style.length > 0) {
-                element.setAttribute('style', style);
-            } else {
-                element.removeAttribute('style');
-            }
-        }
-    }
-
-    // Private
-
-    /**
-     * Fetches and parses a JSON file.
-     * @template [T=unknown]
-     * @param {string} url The URL to the file.
-     * @returns {Promise<T>} A JSON object.
-     * @throws {Error} An error is thrown if the fetch fails.
-     */
-    async _fetchJsonAsset(url) {
-        const response = await fetch(url, {
-            method: 'GET',
-            mode: 'no-cors',
-            cache: 'default',
-            credentials: 'omit',
-            redirect: 'follow',
-            referrerPolicy: 'no-referrer'
-        });
-        if (!response.ok) {
-            throw new Error(`Failed to fetch ${url}: ${response.status}`);
-        }
-        return await readResponseJson(response);
-    }
-
-    /**
-     * Gets an array of candidate CSS rules which might match a specific class.
-     * @param {string} className A whitespace-separated list of classes.
-     * @returns {import('css-style-applier').CssRule[]} An array of candidate CSS rules.
-     */
-    _getCandidateCssRulesForClass(className) {
-        let rules = this._cachedRules.get(className);
-        if (typeof rules !== 'undefined') { return rules; }
-
-        rules = [];
-        this._cachedRules.set(className, rules);
-
-        const classList = this._getTokens(className);
-        for (const {selectors, styles} of this._styleData) {
-            if (!this._selectorMightMatch(selectors, classList)) { continue; }
-            rules.push({selectors, styles});
-        }
-
-        return rules;
-    }
-
-    /**
-     * Converts an array of CSS rules to a CSS string.
-     * @param {import('css-style-applier').CssDeclaration[]} styles An array of CSS rules.
-     * @returns {string} The CSS string.
-     */
-    _getCssText(styles) {
-        let cssText = '';
-        for (const {property, value} of styles) {
-            cssText += `${property}:${value};`;
-        }
-        return cssText;
-    }
-
-    /**
-     * Checks whether or not a CSS string might match at least one class in a list.
-     * @param {string} selectors A CSS selector string.
-     * @param {string[]} classList An array of CSS classes.
-     * @returns {boolean} `true` if the selector string might match one of the classes in `classList`, false otherwise.
-     */
-    _selectorMightMatch(selectors, classList) {
-        const pattern = this._patternClassNameCharacter;
-        for (const item of classList) {
-            const prefixedItem = `.${item}`;
-            let start = 0;
-            while (true) {
-                const index = selectors.indexOf(prefixedItem, start);
-                if (index < 0) { break; }
-                start = index + prefixedItem.length;
-                if (start >= selectors.length || !pattern.test(selectors[start])) { return true; }
-            }
-        }
-        return false;
-    }
-
-    /**
-     * Gets the whitespace-delimited tokens from a string.
-     * @param {string} tokenListString The string to parse.
-     * @returns {string[]} An array of tokens.
-     */
-    _getTokens(tokenListString) {
-        let start = 0;
-        const pattern = this._patternHtmlWhitespace;
-        pattern.lastIndex = 0;
-        const result = [];
-        while (true) {
-            const match = pattern.exec(tokenListString);
-            const end = match === null ? tokenListString.length : match.index;
-            if (end > start) { result.push(tokenListString.substring(start, end)); }
-            if (match === null) { return result; }
-            start = end + match[0].length;
-        }
-    }
-}