Dynamic RTL/LTR Direction

Dynamically set text direction for Deepseek chat elements based on content
当前为 2025-01-16 提交的版本，查看最新版本。
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// ==UserScript==
// @name          Dynamic RTL/LTR Direction
// @namespace     http://tampermonkey.net/
// @version       V2
// @description   Dynamically set text direction for Deepseek chat elements based on content
// @author        Reda Elsayed
// @match         https://chat.deepseek.com/
// @match         https://chat.deepseek.com/*
// @match         https://chat.deepseek.com/*/chat/*/*
// @icon          https://www.deepseek.com/path/to/icon.png
// @grant         none
// ==/UserScript==

(function () {
    'use strict';

    const targetClass = "dad65929";

    function isRTL(text) {
        // Check if the text contains RTL characters (Arabic, Hebrew, etc.)
        const rtlPattern = /[\u0591-\u07FF\uFB1D-\uFDFD\uFE70-\uFEFC]/;
        return rtlPattern.test(text);
    }

    function updateDirection() {
        const elements = document.getElementsByClassName(targetClass);
        Array.from(elements).forEach(element => {
            const textContent = element.textContent.trim();
            const currentDirection = element.style.direction;
            const newDirection = isRTL(textContent) ? "rtl" : "ltr";

            // Only update if the direction has changed
            if (textContent.length > 0 && currentDirection !== newDirection) {
                element.style.direction = newDirection;
            }
        });
    }

    function startObserving() {
        observer.observe(document.body, { childList: true, subtree: true, characterData: true });
    }

    const observer = new MutationObserver(() => {
        updateDirection();
    });

    // Initial check on elements already present in the DOM
    updateDirection();

    // Start observing the DOM for changes
    startObserving();
})();