<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>jquery</title>
<style type="text/css">
</style>
<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.js"></script>
<script type="text/javascript">
</script>
</head>
<iframe src="http://code.artcare.com/page/light-pulses/" width="100%" height="100%" scrolling="no" frameborder="0" id="iFrame"></iframe>
<input type="text" id="btn" style="width: 0; height: 0;position: absolute; left: -100000">
<script>
var IframeOnClick = {
resolution: 200,
iframes: [],
interval: null,
Iframe: function () {
this.element = arguments[0];
this.cb = arguments[1];
},
track: function (element, cb) {
this.iframes.push(new this.Iframe(element, cb));
var _this = this;
this.interval = setInterval(function () {
_this.checkClick();
}, this.resolution);
},
checkClick: function () {
if (document.activeElement) {
var activeElement = document.activeElement;
for (var i in this.iframes) {
if (activeElement === this.iframes[i].element) { // user is in this Iframe
this.iframes[i].cb.apply(window, []);
var btn = document.getElementById("btn")
btn.focus()
}
}
}
}
};
IframeOnClick.track(document.getElementById("iFrame"), function () {
console.log(11111);
});
</script>
</html>
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