js-step_param_poll_not_showing.js

// Add js step before this step which defines
// - GLOBALS.not_showing CSS locator
// - GLOBALS.poll_time to optionally wait a different time than 3 seconds
if (!GLOBALS.not_showing) {
    callback("JS-step GLOBALS.not_showing not set");
}
var locator = GLOBALS.not_showing;

if (!GLOBALS.poll_time) {
    var poll_timeout_seconds = 3;
} else {
    var poll_timeout_seconds = GLOBALS.poll_time;
}

var poll_timeout_seconds = 3;
var poll_frequency_ms = 300;
var counter = 0;
var max_loops = Math.round(poll_timeout_seconds * 1000 / poll_frequency_ms);

var fn = function waitLoop() {
// picture is loaded if it has width
var img_element = document.querySelector(locator);

if (img_element) {
    return callback("Image locator ("+locator+") not found")
}

else {
    if (counter == max_loops) {
       return callback(true);
    }
    counter++;
    return setTimeout(waitLoop, poll_frequency_ms);  
}
}
fn();