<!DOCTYPE html>
<html>
<head>
<script src="../../resources/js-test.js"></script>
<script src="../../resources/ui-helper.js"></script>
</head>
<body>
<input id="testButton" type="button" value="Click me">
<script>
description("Test that we do not crash when timers fire on the worker thread while user gestures are happening.");
jsTestIsAsync = true;

var worker = new Worker('worker-user-gesture.js');

let gestureCount = 0;

function doUserGesture() {
    let inputElement = document.getElementById("testButton");
    let centerX = inputElement.offsetLeft + inputElement.offsetWidth / 2;
    let centerY = inputElement.offsetTop + inputElement.offsetHeight / 2;
    UIHelper.activateAt(centerX, centerY).then(function() {
        if (++gestureCount == 10) {
            finishJSTest();
            return;
        }
        setTimeout(doUserGesture, 0);
    });
}

setTimeout(doUserGesture, 0);
</script>
</body>
</html>