<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1222285
-->
<head>
  <meta charset="utf-8">
  <title>Test for Bug 1222285</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  <script type="application/javascript">

  /** Test for Bug 1222285 */
  SimpleTest.waitForExplicitFinish();

  window.onload = () => {
    SpecialPowers.pushPrefEnv({"set":
      [
        ["privacy.resistFingerprinting", true],
      ],
    }, doTestForSystemEventGroup);
  };

  // This test makes sure that system event group will still get real keyboard event.
  function doTestForSystemEventGroup() {
    SpecialPowers.addSystemEventListener(document, "keydown",
      function eventHandler(aEvent) {
        SpecialPowers.removeSystemEventListener(document,
          "keydown", eventHandler, true);

        is(aEvent.code, "Minus", "The system group event should get real code.");
        is(aEvent.keyCode, 63, "The system group event should get real keyCode.");

        doTestModifiersForSystemEventGroup();
      }, true);

    // Send key event to the system group.
    synthesizeKey("\u00DF", {code: "Minus", keyCode: 63});
  }

  // Test that will system group event still get suppressed modifier keys
  function doTestModifiersForSystemEventGroup() {
    SpecialPowers.addSystemEventListener(document, "keydown",
      function eventHandler(aEvent) {
        SpecialPowers.removeSystemEventListener(document,
          "keydown", eventHandler, true);
        is(aEvent.key, "Alt", "The system group event get the suppressed keyboard event.");

        SimpleTest.finish();
      }, true);

    // Send key event to the system group.
    synthesizeKey("KEY_Alt", {altKey: true});
  }

  </script>
</head>
<body>
</body>
</html>
