Stackexchange TeX copy

Copy TeX code from stackexchange sites by clicking on equations

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 or Violentmonkey 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         Stackexchange TeX copy
// @namespace    http://tampermonkey.net/
// @version      2023-12-26
// @description  Copy TeX code from stackexchange sites by clicking on equations
// @author       joelsleeba
// @match        https://math.stackexchange.com
// @icon         https://www.google.com/s2/favicons?sz=64&domain=stackexchange.com
// @license      AGPL v3
// ==/UserScript==

(function() {
    'use strict';

    // Your code here...
    function handleEquationClick(event) {
  event.stopPropagation();
  const equation = event.target.closest(".math-container")

  if (equation) {
    // Wikipedia nicely packs a single <math> element inside each .mwe-math-element classes
    const mathScript = equation.querySelector("script[type='math/tex']");
    const tex = mathScript.innerText
    console.log(tex);

    // Do something with the joined alt text here, e.g., display it in an alert:
    navigator.clipboard.writeText(tex)
    .then(() => {
      // Copying succeeded
      console.log("TeX copied to clipboard");
    })
    .catch(err => {
      // Copying failed, handle the error
      console.error("Failed to copy TeX :", err);
    });
  } else {
    console.log("Clicked element is not within an .mwe-math-element");
  }
}

// // Attach the event listener to all descendants of .ltx_Math which are not themselves descendants of .ltx_equation
document.querySelectorAll(".math-container *").forEach(element => {
  element.addEventListener("click", handleEquationClick);
});

})();