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Stackexchange TeX copy

Copy TeX code from stackexchange sites by clicking on equations

  1. // ==UserScript==
  2. // @name         Stackexchange TeX copy
  3. // @namespace    http://tampermonkey.net/
  4. // @version      2023-12-26
  5. // @description  Copy TeX code from stackexchange sites by clicking on equations
  6. // @author       joelsleeba
  7. // @match        https://math.stackexchange.com
  8. // @icon         https://www.google.com/s2/favicons?sz=64&domain=stackexchange.com
  9. // @license      AGPL v3
  10. // ==/UserScript==
  11.  
  12. (function() {
  13.     'use strict';
  14.  
  15.     // Your code here...
  16.     function handleEquationClick(event) {
  17.   event.stopPropagation();
  18.   const equation = event.target.closest(".math-container")
  19.  
  20.   if (equation) {
  21.     // Wikipedia nicely packs a single <math> element inside each .mwe-math-element classes
  22.     const mathScript = equation.querySelector("script[type='math/tex']");
  23.     const tex = mathScript.innerText
  24.     console.log(tex);
  25.  
  26.     // Do something with the joined alt text here, e.g., display it in an alert:
  27.     navigator.clipboard.writeText(tex)
  28.     .then(() => {
  29.       // Copying succeeded
  30.       console.log("TeX copied to clipboard");
  31.     })
  32.     .catch(err => {
  33.       // Copying failed, handle the error
  34.       console.error("Failed to copy TeX :", err);
  35.     });
  36.   } else {
  37.     console.log("Clicked element is not within an .mwe-math-element");
  38.   }
  39. }
  40.  
  41. // // Attach the event listener to all descendants of .ltx_Math which are not themselves descendants of .ltx_equation
  42. document.querySelectorAll(".math-container *").forEach(element => {
  43.   element.addEventListener("click", handleEquationClick);
  44. });
  45.  
  46. })();