<!doctype html>
<title>Coalesced events count and properties</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="done"></div>

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

  // https://w3c.github.io/pointerevents/#coalesced-events
  function checkListAttributes(event) {
    assert_equals(typeof event.getCoalescedEvents, "function",
        event.type + ".getCoalescedEvents is a function");
    assert_equals(typeof event.getCoalescedEvents(), "object",
        event.type + ".getCoalescedEvents() returns an object");
    if (event.type == "pointermove") {
      assert_greater_than_equal(event.getCoalescedEvents().length, 1,
          event.type + ".getCoalescedEvents() has at least 1 entry");
    } else {
      assert_equals(event.getCoalescedEvents().length, 0,
          event.type + ".getCoalescedEvents() has 0 entry");
    }
  }

  promise_test(async () => {
    const done = document.getElementById("done");

    let pointerover_promise  = getEvent("pointerover",  target);
    let pointerenter_promise = getEvent("pointerenter", target);
    let pointerout_promise   = getEvent("pointerout",   target);
    let pointerleave_promise = getEvent("pointerleave", target);

    await clickInTarget(pointer_type, target);
    await clickInTarget(pointer_type, done);

    checkListAttributes(await pointerover_promise);
    checkListAttributes(await pointerenter_promise);
    checkListAttributes(await pointerout_promise);
    checkListAttributes(await pointerleave_promise);
  }, "Coalesced list in boundary events");

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

    target.addEventListener("pointerdown",
        e => target.setPointerCapture(e.pointerId),
        {once: true});

    target.addEventListener("pointermove",
        e => target.releasePointerCapture(e.pointerId),
        {once: true});

    let gotpointercapture_promise  = getEvent("gotpointercapture",  target);
    let lostpointercapture_promise = getEvent("lostpointercapture", target);

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

    checkListAttributes(await gotpointercapture_promise);
    checkListAttributes(await lostpointercapture_promise);

    target.classList.remove("touchActionNone");
  }, "Coalesced list in pointer-capture events");

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

    let pointerdown_promise = getEvent("pointerdown", target);
    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();

    checkListAttributes(await pointerdown_promise);
    checkListAttributes(await pointermove_promise);
    checkListAttributes(await pointerup_promise);

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

  promise_test(async () => {
    if (pointer_type !== "touch") {
      assert_true(true, "Skipped for " + pointer_type);
      return;
    }

    let pointercancel_promise  = getEvent("pointercancel", target);

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

    checkListAttributes(await pointercancel_promise);
  }, "Coalesced list in pointercancel event");
</script>
