Example Greasy Fork Compliant Script

Tự động tô sáng các đoạn văn bản được bôi đen trên trang web.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Example Greasy Fork Compliant Script
// @namespace    https://greasyfork.org/users/your-id
// @version      1.0.0
// @description  Tự động tô sáng các đoạn văn bản được bôi đen trên trang web.
// @author       Your Name
// @license      MIT
// @match        https://example.com/*
// @grant        none
// @run-at       document-end
// ==/UserScript==

/*
 This script highlights selected text on the page by wrapping it in a <mark> tag.
 No tracking, no ads, no external code loading.
*/

(function () {
    'use strict';

    /**
     * Highlight currently selected text
     */
    function highlightSelection() {
        const selection = window.getSelection();
        if (!selection || selection.rangeCount === 0) {
            return;
        }

        const range = selection.getRangeAt(0);
        if (range.collapsed) {
            return;
        }

        const mark = document.createElement('mark');
        mark.style.backgroundColor = 'yellow';

        try {
            range.surroundContents(mark);
            selection.removeAllRanges();
        } catch (error) {
            console.warn('Unable to highlight selection:', error);
        }
    }

    /**
     * Add keyboard shortcut: Ctrl + Shift + H
     */
    document.addEventListener('keydown', function (event) {
        if (event.ctrlKey && event.shiftKey && event.key === 'H') {
            highlightSelection();
        }
    });

})();