focus-event-after-switching-iframes-inner.html

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Focus event inner document</title>
</head>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<body>
<h1>Inner</h1>
<script>
let innerlog = "innerlog:";

window.onmessage = function(e) {
  if (e.data == "getlog") {
    parent.postMessage(innerlog, "*");
  } else if (e.data == "focus") {
    test_driver.set_test_context(window.parent);
    test_driver.click(document.body);
  }
};

window.onfocus = function() {
  innerlog += "windowfocus,";
  parent.postMessage("focus", "*");
};

window.onblur = function() {
  innerlog += "windowblur,";
};

window.onload = function() {
  parent.postMessage("ready", "*");
}
</script>
</body>
</html>

chromium/third_party/blink/web_tests/external/wpt/focus/support/focus-event-after-switching-iframes-inner.html