test_getCoalescedEvents_during_button_press.html

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<!DOCTYPE HTML>

<html>

<head>

  <meta charset="utf-8">

	<meta name="viewport" content="width=device-width, initial-scale=1.0">

  <title>Test getCoalescedEvents() while a button is pressed</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>

<!-- DO NOT PUT any text before the test target to avoid fractional coordinates! -->

<div id="target0" style="width: 50px; height: 50px; background: green"></div>

<script>

"use strict";

SimpleTest.waitForExplicitFinish();

SimpleTest.waitForFocus(async () => {

  await SpecialPowers.pushPrefEnv({"set": [

    ["dom.events.coalesce.mousemove", true],

    ["test.events.async.enabled", true],

  ]});

  const target0 = window.document.getElementById("target0");

  const utils = SpecialPowers.getDOMWindowUtils(window);

  utils.advanceTimeAndRefresh(0);

  await new Promise(resolve => SimpleTest.executeSoon(resolve));

  const waitForPointerMove = new Promise(resolve => {

    target0.addEventListener("pointermove", (ev) => {

      let length = ev.getCoalescedEvents().length;

      ok(length >= 1, "Coalesced events should >= 1, got " + length);

      let rect = target0.getBoundingClientRect();

      let prevOffsetX = undefined;

      let prevOffsetY = undefined;

      function isExpectedOffset(aNewOffset, aPrevOffset) {

        if (aPrevOffset === undefined) {

          const roundedOffset = 5 * Math.max(Math.round(aNewOffset / 5), 1);

          return aNewOffset >= roundedOffset - 1 && aNewOffset <= roundedOffset + 1;

        let candidateOffset = aPrevOffset + 5;

        const toleranceError = navigator.userAgent.includes("Android") ? 0.31 : 0.1;

        while (candidateOffset < 25) {

          if (

            aNewOffset >= candidateOffset - toleranceError &&

            aNewOffset <= candidateOffset + toleranceError

) {

            return true;

          candidateOffset += 5;

        return false;

      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");

        is(coalescedEvent.buttons, 1, `getCoalescedEvents()[${i}].buttons should be 1`);

        is(coalescedEvent.pressure, 0.5, `getCoalescedEvents()[${i}].pressure should be 0.5 when buttons is not 0`);

ok(

          isExpectedOffset(coalescedEvent.offsetX, prevOffsetX),

          `getCoalescedEvents()[${i}].offsetX (${

            coalescedEvent.offsetX

          }) should be 5 * n + previous offsetX (${prevOffsetX})`

);

ok(

          isExpectedOffset(coalescedEvent.offsetY, prevOffsetY),

          `getCoalescedEvents()[${i}].offsetY (${

            coalescedEvent.offsetY

          }) should be 5 * n + previous offsetY (${prevOffsetY})`

);

        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");

      resolve();

    }, { once: true });

});

  info(`mozInnerScreen={${SpecialPowers.wrap(window).mozInnerScreenX}, ${SpecialPowers.wrap(window).mozInnerScreenY}}`);

  info(`devicePixelRatio=${window.devicePixelRatio}`);

  try {

    info(`top.mozInnerScreen={${SpecialPowers.wrap(window.top).mozInnerScreenX}, ${SpecialPowers.wrap(window.top).mozInnerScreenY}}`);

    info(`top.getResolution()=${SpecialPowers.wrap(window.top).windowUtils.getResolution()}`);

  } catch (e) {}

  info(`target0.getBoundingClientRect()={${target0.getBoundingClientRect().x}, ${target0.getBoundingClientRect().y}}`);

  info("Synthesizing mouse moves....");

  synthesizeMouse(target0, 5, 5, {type: "mousemove", buttons: 1});

  synthesizeMouse(target0, 10, 10, {type: "mousemove", buttons: 1});

  synthesizeMouse(target0, 15, 15, {type: "mousemove", buttons: 1});

  synthesizeMouse(target0, 20, 20, {type: "mousemove", buttons: 1});

  utils.restoreNormalRefresh();

  await waitForPointerMove;

  target0.addEventListener("pointerup", (ev) => {

    SimpleTest.finish();

  }, { once: true });

  info("Synthesizing a click....");

  synthesizeMouse(target0, 20, 20, {});

});

</script>

</body>

</html>