Active Tab Arrow Display

Display an arrow on the title of the currently active tab

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         Active Tab Arrow Display
// @namespace    ActiveTabArrowDisplay
// @description  Display an arrow on the title of the currently active tab
// @version      1.1
// @author       Kai Krause <[email protected]>
// @include      *
// @run-at       document-end
// ==/UserScript==

var modifier = "➜";

function flashTitle() {
	setTimeout(() => {
		var title = document.title;
		title = title.replace(modifier,"");

		if (document.hasFocus() || !document.hidden) {
			document.title = modifier + " " + title;
		} else if (!document.hasFocus() && document.hidden) {
			document.title = title;
		}
	}, 500);
}

flashTitle();

window.addEventListener("focus", flashTitle, true);
window.addEventListener("blur", flashTitle, true);

var titleSel = document.querySelector('title');
var MutationObserver = window.MutationObserver || window.WebKitMutationObserver;
var MutationObserverConfig={
    childList: true,
    subtree: true,
    characterData: true
};
var titleObserver = new MutationObserver(function(mutations){
	flashTitle();
});
titleObserver.observe(titleSel, MutationObserverConfig);