Brings back visual last edit text in drive apps due to M3 migration by Google.

addBackRevisionVisualText.user.js

// ==UserScript==
// @name         Restore Revision Time Visual Text in Google Apps
// @version      1.2
// @description  Brings back visual last edit text in drive apps due to M3 migration by Google.
// @author       ZachTheDev
// @match        https://docs.google.com/document*
// @match        https://docs.google.com/presentation*
// @match        https://docs.google.com/spreadsheets*
// ==/UserScript==

(function() {
    function addBackRevisionVisualText() {
        const escapeHTMLPolicy = trustedTypes.createPolicy("use-raw-string", {
            createHTML: (string) => string,
        });
        const revisionButtonElement = document.getElementById("docs-revisions-appbarbutton");
        var revisionTextFromButton = revisionButtonElement.getAttribute("data-tooltip");
        const menubarElement = document.getElementById("docs-menubar");
        const revisionVisualTextHTML = "<div id=\"revisionVisualText\" class=\"menu-button goog-control goog-inline-block\" role=\"menuitem\" style=\"background-color: transparent;text-decoration: underline;\" data-tooltip=\"Open version history\"></div>";
        const rangeForRevisionVisualTextHTML = document.createRange();
        const fragmentForRevisionVisualTextHTML = rangeForRevisionVisualTextHTML.createContextualFragment(escapeHTMLPolicy.createHTML(revisionVisualTextHTML));
        menubarElement.appendChild(fragmentForRevisionVisualTextHTML);
        const revisionVisualTextElement = document.getElementById("revisionVisualText");
        const setAttributeWatcher = revisionButtonElement.setAttribute;
        revisionButtonElement.setAttribute = (key, value) => {
            revisionTextFromButton = revisionButtonElement.getAttribute("data-tooltip");
            revisionVisualTextElement.innerHTML = escapeHTMLPolicy.createHTML(revisionTextFromButton);
            setAttributeWatcher.call(revisionButtonElement, key, value);
        };
        revisionVisualTextElement.addEventListener("mousedown", function (event) {
            revisionButtonElement.dispatchEvent(new MouseEvent("mousedown"));
            revisionButtonElement.classList.remove("jfk-button-hover");
            revisionButtonElement.dispatchEvent(new MouseEvent("mouseup"));
            event.stopPropagation(); // fixes bug where menus would open on hover after first click of the revisionVisualTextElement
        });
        revisionButtonElement.addEventListener("mouseenter", (event) => {revisionButtonElement.classList.add("jfk-button-hover");}, false);
    }
    addBackRevisionVisualText();
})();

Details

In March 2023, Google transitioned to Material Design v3 for Google Docs, Slides, and Sheets.
Amongst many things, this change also removed the "Last edit was ______ ago" text in the menubar.
This script replaces it by using DOM manipulation by grabbing the text of the tooltip from the new revisions button.

Installation

Prereq: Install Userscript Extension
Google Chrome: Install Tampermonkey or Violentmonkey.
Mozilla Firefox: Install Greasemonkey, Tampermonkey or Violentmonkey.
Opera: Install this extension first, then you can install Tampermonkey or Violentmonkey from the Chrome extension store.
Microsoft Edge: Install Tampermonkey from the Edge Add-On Repository.

Then do the following:

1. Click here
2. Click "Install this script"
3. Confirm the installation by clicking "Install"

Updated version that works on Firefox (not updated on Chrome).
https://greasyfork.org/en/scripts/462209-restore-revision-time-visual-text-in-google-apps

I thought it'd just be faster to hack a fix than bother you haha.
Thanks for taking the initiative!

Useful script! Worked for awhile but broke because Google changed their CSP. Luckily it is simple to fix. Add this at the top of the function:

const escapeHTMLPolicy = trustedTypes.createPolicy("default", {
    createHTML: (string) => string,
});

Then tweak the two lines that set use HTML strings to use the sanitization function as follows:

const fragmentForRevisionVisualTextHTML = rangeForRevisionVisualTextHTML.createContextualFragment(escapeHTMLPolicy.createHTML(revisionVisualTextHTML));

revisionVisualTextElement.innerHTML = escapeHTMLPolicy.createHTML(revisionTextFromButton);

@tech234a Thank you so much for you contribution! I haven't been in any drive files for a few weeks and did not notice it being broken. I just patched the gist to include your work. Updated my local version and it worked like a charm :)

@tech234a thanks for the heads up, I changed my script as well. I had to make mine more type safe since trustedTypes exists on Chrome but not Firefox. Also, we shouldn't name this policy "default", since it will be used everywhere (not sure if its everywhere in the script or in the entire document). Reference: https://developer.mozilla.org/en-US/docs/Web/API/TrustedTypePolicyFactory/createPolicy

cc @zachthedev

@andersonaddo Good catch about not naming it "default", I was wondering why a policy name had to be provided when creating a policy

@andersonaddo Thanks for catching that. I have updated my version to reflect this.