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<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1303957
-->
<head>
  <meta charset="utf-8">
  <title>Test for Bug 1303957</title>
  <script src="/tests/SimpleTest/EventUtils.js"></script>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1303957">Mozilla Bug 1303957</a>
<p id="display"></p>
<div id="target0" style="width: 50px; height: 50px; background: green"></div>
<script type="text/javascript">
/** Test for Bug 1303957 **/
SimpleTest.waitForExplicitFinish();

function runTests() {
  let target0 = window.document.getElementById("target0");
  let utils = SpecialPowers.getDOMWindowUtils(window);
  utils.advanceTimeAndRefresh(0);

  SimpleTest.executeSoon(async () => {
    // Flush all pending mouse events before synthesizing events.

    target0.addEventListener("pointermove", (ev) => {
      let length = ev.getCoalescedEvents().length;
      ok(length >= 1, "Coalesced events should >= 1, got " + length);

      let rect = target0.getBoundingClientRect();
      let prevOffsetX = 0;
      let prevOffsetY = 0;

      for (let i = 0; i < length; ++i) {
        let coalescedEvent = ev.getCoalescedEvents()[i];
        isnot(coalescedEvent.timeStamp, 0, "getCoalescedEvents()[" + i + "].timeStamp");
        is(coalescedEvent.type, "pointermove", "getCoalescedEvents()[" + i + "].type");
        is(coalescedEvent.pointerId, ev.pointerId, "getCoalescedEvents()[" + i + "].pointerId");
        is(coalescedEvent.pointerType, ev.pointerType, "getCoalescedEvents()[" + i + "].pointerType");
        is(coalescedEvent.isPrimary, ev.isPrimary, "getCoalescedEvents()[" + i + "].isPrimary");
        is(coalescedEvent.target, ev.target, "getCoalescedEvents()[" + i + "].target");
        is(coalescedEvent.currentTarget, null, "getCoalescedEvents()[" + i + "].currentTarget");
        is(coalescedEvent.eventPhase, Event.NONE, "getCoalescedEvents()[" + i + "].eventPhase");
        is(coalescedEvent.cancelable, false, "getCoalescedEvents()[" + i + "].cancelable");
        is(coalescedEvent.bubbles, false, "getCoalescedEvents()[" + i + "].bubbles");

        ok(coalescedEvent.offsetX >= prevOffsetX, "getCoalescedEvents()[" + i + "].offsetX = " + coalescedEvent.offsetX);
        ok(coalescedEvent.offsetX == 5 || coalescedEvent.offsetX == 10 ||
           coalescedEvent.offsetX == 15 || coalescedEvent.offsetX == 20, "expected offsetX");

        ok(coalescedEvent.offsetY >= prevOffsetY, "getCoalescedEvents()[" + i + "].offsetY = " + coalescedEvent.offsetY);
        ok(coalescedEvent.offsetY == 5 || coalescedEvent.offsetY == 10 ||
           coalescedEvent.offsetY == 15 || coalescedEvent.offsetY == 20, "expected offsetY");

        prevOffsetX = coalescedEvent.offsetX;
        prevOffsetY = coalescedEvent.offsetY;

        let x = rect.left + prevOffsetX;
        let y = rect.top + prevOffsetY;
        // coordinates may change slightly due to rounding
        ok((coalescedEvent.clientX <= x+2) && (coalescedEvent.clientX >= x-2), "getCoalescedEvents()[" + i + "].clientX");
        ok((coalescedEvent.clientY <= y+2) && (coalescedEvent.clientY >= y-2), "getCoalescedEvents()[" + i + "].clientY");
      }
    }, { once: true });

    target0.addEventListener("pointerup", (ev) => {
      utils.restoreNormalRefresh();
      SimpleTest.finish();
    }, { once: true });

    await promiseNativeMouseEvent({ type: "mousemove", target: target0, offsetX: 5, offsetY: 5 });
    await promiseNativeMouseEvent({ type: "mousemove", target: target0, offsetX: 10, offsetY: 10 });
    await promiseNativeMouseEvent({ type: "mousemove", target: target0, offsetX: 15, offsetY: 15 });
    await promiseNativeMouseEvent({ type: "mousemove", target: target0, offsetX: 20, offsetY: 20 });
    synthesizeNativeMouseEvent({ type: "click", target: target0, offsetX: 20, offsetY: 20 });
  });
}

SimpleTest.waitForFocus(() => {
  SpecialPowers.pushPrefEnv({"set": [["dom.events.coalesce.mousemove", true]]}, runTests);
});

</script>
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