upyterUserscript.js

// ==UserScript==
// @name         JupyterUserscript
// @version      0.1
// @author       Mark Andreev
// ==/UserScript==

(function() {
    'use strict';

    var YOUR_NAME = 'Mark,';
    var LONG_TIME_THRESHOLD = 5000;

    document.addEventListener("DOMContentLoaded", function(){
        function NbContainerWait() {
            if (document.getElementById('notebook-container')) {
                document.getElementById('notebook-container').style.width = '100%';
                document.getElementById('ipython_notebook').style.display = 'None';
                document.getElementById('kernel_logo_widget').style.display = 'None';

                var kernel_was_busy = false;
                var kernel_start_busy_time = null;
                function NbKernelWait(){
                    if (Jupyter.kernelselector.notebook.kernel_busy){
                        if (!kernel_was_busy){
                            kernel_was_busy = true;
                            kernel_start_busy_time = new Date();
                        }
                    }
                    else {
                        if (kernel_was_busy){
                            kernel_was_busy = false;
                            var task_time = new Date() - kernel_start_busy_time;
                            if (task_time > LONG_TIME_THRESHOLD){
                                var notebook_name = document.getElementById('notebook_name').innerText;
                                var msg = YOUR_NAME + 'notebook ' + notebook_name + 'is ready';
                                window.speechSynthesis.speak(new SpeechSynthesisUtterance(msg));
                            }
                        }
                    }
                    setTimeout(NbKernelWait, 10);
                }
                NbKernelWait();
            } else {
                setTimeout(NbContainerWait, 10);
            }
        }
        NbContainerWait();
    }());
})();