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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1261673
https://bugzilla.mozilla.org/show_bug.cgi?id=1970030
-->
<head>
<meta charset="utf-8">
<title>Test change number and range input value through wheel event</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/EventUtils.js"></script>
<script src="/tests/SimpleTest/paint_listener.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=1261673">Mozilla Bug 1261673</a>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1970030">Mozilla Bug 1970030</a>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<input id="test_number" type="number" value=5>
<script type="text/javascript">
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(runTests);
function runTests() {
let input = window.document.getElementById("test_number");
// focus: whether the target input element is focused
// deltaY: deltaY of WheelEvent
// deltaMode: deltaMode of WheelEvent
// valueChanged: expected value changes after input element handled the wheel event
let params = [
{focus: true, deltaY: 1.0, deltaMode: WheelEvent.DOM_DELTA_LINE, valueChanged: -1},
{focus: true, deltaY: -1.0, deltaMode: WheelEvent.DOM_DELTA_LINE, valueChanged: 1},
{focus: true, deltaY: 1.0, deltaMode: WheelEvent.DOM_DELTA_PAGE, valueChanged: -1},
{focus: true, deltaY: -1.0, deltaMode: WheelEvent.DOM_DELTA_PAGE, valueChanged: 1},
{focus: true, deltaY: 1.0, deltaMode: WheelEvent.DOM_DELTA_PIXEL, valueChanged: 0},
{focus: true, deltaY: -1.0, deltaMode: WheelEvent.DOM_DELTA_PIXEL, valueChanged: 0},
{focus: false, deltaY: 1.0, deltaMode: WheelEvent.DOM_DELTA_LINE, valueChanged: 0},
{focus: false, deltaY: -1.0, deltaMode: WheelEvent.DOM_DELTA_LINE, valueChanged: 0}
];
let testIdx = 0;
// The expected value of the number field; used in is() check below.
// Initialized to the value that the field starts out with; subtests will
// modify this if they expect to modify the value.
let expectedValue = parseInt(input.value);
// Actual/expected number of mutations to the number field's value:
let actualChangeCount = 0;
let expectedChangeCount = 0;
const prefName = "dom.input.number_and_range_modified_by_mousewheel";
let didFlipPref = false;
let isPrefEnabled = SpecialPowers.getBoolPref(prefName);
is(isPrefEnabled, false, "Expecting pref to be disabled by default");
input.addEventListener("change", () => {
++actualChangeCount;
});
function runNext() {
let p = params[testIdx];
(p.focus) ? input.focus() : input.blur();
if (isPrefEnabled && p.valueChanged != 0) {
expectedChangeCount++;
expectedValue += p.valueChanged;
}
const wheelEventPromise = new Promise(res => {
input.addEventListener("wheel", e => res(e), { passive: true, once: true });
})
sendWheelAndPaint(input, 1, 1, { deltaY: p.deltaY, deltaMode: p.deltaMode },
async () => {
is(parseInt(input.value), expectedValue,
"Handle wheel in number input test-" + testIdx +
" with pref " + (isPrefEnabled ? "en" : "dis") + "abled");
info(`actualChangeCount ${actualChangeCount}, expectedChangeCount ${expectedChangeCount}`);
is(actualChangeCount, expectedChangeCount,
"UA should fire change event when input's value changed");
// Need to wrap event to see if it was default prevented by system
const wheelEvent = SpecialPowers.wrap(await wheelEventPromise);
const shouldScroll = !(isPrefEnabled && p.valueChanged);
if (shouldScroll) {
ok(!wheelEvent.defaultPrevented, "Wheel event should not be default prevented");
} else {
ok(wheelEvent.defaultPrevented, "Wheel event should be default prevented");
}
if (++testIdx < params.length) {
// More subtests remain; kick off the next one.
runNext();
} else if (!didFlipPref) {
// Reached the end of the subtest list. Flip the pref
// and restart our iteration over the subtests.
await SpecialPowers.pushPrefEnv({
set: [[prefName, !isPrefEnabled]],
});
isPrefEnabled = !isPrefEnabled;
didFlipPref = true;
testIdx = actualChangeCount = expectedChangeCount = 0;
runNext();
} else {
// Reached the end of the subtest list, for both pref settings.
// We're done!
SimpleTest.finish();
}
});
}
runNext();
}
</script>
</body>
</html>
|
