Preserve focus

When re-focusing page content, return focus to element that was active before blur, instead of root element.

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

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.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name        Preserve focus
// @include        *
// @namespace   myfonj
// @grant       none
// @version     1.0
// @author      myf
// @description When re-focusing page content, return focus to element that was active before blur, instead of root element.
// ==/UserScript==

// https://greasyfork.org/en/scripts/427948/versions/new

var lastFocusedElement = document.activeElement;

window.addEventListener('blur', saveFocus, false);
window.addEventListener('focus', loadFocus, false);

function saveFocus(){
  // console.info('saving active element', {lastFocusedElement});
  lastFocusedElement = document.activeElement;
}

function loadFocus(){
  if(!lastFocusedElement) {
    // console.info('no lastFocusedElement');
    return
  }
  if(lastFocusedElement == document.activeElement) {
    // console.info('focus is already on right element', lastFocusedElement);
    return
  }
  // console.info('focusing', lastFocusedElement);
  lastFocusedElement.focus();
}