<!doctype html>
<title>Coalesced event properties after JS redispatches a trusted event</title>
<meta name="variant" content="?mouse">
<meta name="variant" content="?pen">
<meta name="variant" content="?touch">
<meta name="viewport" content="width=device-width">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="pointerevent_support.js"></script>
<link rel="stylesheet" type="text/css" href="pointerevent_styles.css">
<style>
  div {
    width: 100px;
    height: 100px;
  }
</style>
<div id="target"></div>
<div id="target2"></div>

<script>
  "use strict";
  const pointer_type = location.search.substring(1);
  const target = document.getElementById("target");
  const target2 = document.getElementById("target2");

  let received_num_coalesced;

  function checkListAttributesBeforeRedispatch(event) {
    assert_equals(event.type, "pointermove");
    assert_equals(event.isTrusted, true);
    assert_equals(event.target, target);

    received_num_coalesced = event.getCoalescedEvents().length;
    assert_greater_than_equal(received_num_coalesced, 1,
        "pointermove.getCoalescedEvents() has at least 1 entry");

    for (const coalesced_event of event.getCoalescedEvents()) {
      assert_equals(coalesced_event.isTrusted, true,
        "coalesced_event.isTrusted is true");
      assert_equals(coalesced_event.target, target,
        "coalesced_event.target matches dispatch target");
    }
  }

  // This WPT minimally tests redispatched event attributes.  For trusted
  // event tests, see coalesced_events_attributes.https.html.
  function checkListAttributesAfterRedispatch(event) {
    assert_equals(event.type, "pointermove");
    assert_equals(event.isTrusted, false);
    assert_equals(event.target, target2);

    assert_greater_than_equal(event.getCoalescedEvents().length,
        received_num_coalesced,
        "pointermove.getCoalescedEvents() has the same number of entries");

    for (const coalesced_event of event.getCoalescedEvents()) {
      assert_equals(coalesced_event.isTrusted, true,
        "coalesced_event.isTrusted maintains its original value");
      assert_equals(coalesced_event.target, target,
        "coalesced_event.target maintains its original value");
    }
  }

  promise_test(async () => {
    // We need "touch-action:none" to guarantee pointermove events.
    target.classList.add("touchActionNone");

    let pointermove_promise = getEvent("pointermove", target);
    let pointerup_promise   = getEvent("pointerup",   target);

    await new test_driver.Actions()
        .addPointer("TestPointer", pointer_type)
        .pointerMove(0, 0, {origin: target})
        .pointerDown()
        .pointerMove(20, 20, {origin: target})
        .pointerUp()
        .send();

    let pointermove_event = await pointermove_promise;
    await pointerup_promise;

    checkListAttributesBeforeRedispatch(pointermove_event);

    let pointermove_promise2 = getEvent("pointermove", target2);
    target2.dispatchEvent(pointermove_event);
    let pointermove_event2 = await pointermove_promise2;

    checkListAttributesAfterRedispatch(pointermove_event2);

    target.classList.remove("touchActionNone");
  }, "Coalesced list in pointerdown/move/up events");
</script>