Gmail - Hover to show the URL behind a link

Make the href in each link more visible when a mouse hovers over so the user doesn't accidentally click on an unexpected (and potentially spam) link

คุณจะต้องติดตั้งส่วนขยาย เช่น Tampermonkey, Greasemonkey หรือ Violentmonkey เพื่อติดตั้งสคริปต์นี้

คุณจะต้องติดตั้งส่วนขยาย เช่น Tampermonkey หรือ Violentmonkey เพื่อติดตั้งสคริปต์นี้

คุณจะต้องติดตั้งส่วนขยาย เช่น Tampermonkey หรือ Violentmonkey เพื่อติดตั้งสคริปต์นี้

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         Gmail - Hover to show the URL behind a link
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Make the href in each link more visible when a mouse hovers over so the user doesn't accidentally click on an unexpected (and potentially spam) link
// @author       You
// @match        https://mail.google.com/mail/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=gmail.com
// @grant        none
// @license      MIT
// @require http://code.jquery.com/jquery-3.5.1.min.js
// ==/UserScript==
/* globals jQuery, $, waitForKeyElements */



(function() {
    'use strict';

    $(document).ready(function () {
        function isMailOpen() {
            const replyButton = $('div[aria-label="Reply"][data-tooltip="Reply"][role="button"]');
            if(replyButton.length > 0){
                var aTagList = $('div.AO a'); // weird way to identify the mail body but ok...
                $.each(aTagList, function(index, aTag){
                   const originalTitle = $(this).attr('title');
                   const currentTitle = $(this).prop('title');
                   if(!originalTitle && !currentTitle) {
                       const href = $(this).attr('href');
                       $(this).prop('title', href);
                   }

               });
            }
        }

        // check every 3 seconds
        setInterval(isMailOpen, 3000);
    });
})();