window-active-state.html | Explore in Territory

<!DOCTYPE HTML>
<title>Check active state of windows</title>
<script src="../../../resources/user-gesture-utils.js"></script>
<script src="../../../resources/testharness.js"></script>
<script src="../../../resources/testharnessreport.js"></script>
<script>
  var popupWin = window.open('about:blank');
  async_test((t) => {
    window.addEventListener("blur", t.step_func(() => {
      // Give a time to `popupWin` for activation.
      setTimeout(() => {
        assert_true(popupWin.internals.isActivated(), "Popup window should be activated");
        assert_false(window.internals.isActivated(), "Parent window should be deactivated");
        t.done();
      }, 0);
    }));

    window.addEventListener("load", t.step_func(() => {
      assert_true(window.internals.isActivated(), "Parent window should be activated");
      focusWithUserGesture(popupWin);
    }));
  }, "This test passes if no crash");
</script>

chromium/third_party/blink/web_tests/fast/dom/Window/window-active-state.html