// ==UserScript==
// @name         onVisibilityChange
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Waits until the tab is focused, executing a callback function when it happens.
// @author       IgnaV
// @grant        none
// ==/UserScript==
const onVisibilityChange = (onFocus, onBlur, minTime = 0) => {
let lastExecutionTime = 0;
document.addEventListener('visibilitychange', function() {
const currentTime = Date.now();
if (currentTime - lastExecutionTime >= minTime * 1000) {}
if (document.visibilityState === 'visible') {
onFocus?.();
} else {
onBlur?.();
}
lastExecutionTime = currentTime;
});
};