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<!doctype html>
<meta charset=utf-8>
<link rel='help' href='https://screen-share.github.io/captured-mouse-events/#captured-mouse-change-event'>
<link rel='help' href='https://screen-share.github.io/captured-mouse-events/#captured-mouse-change-event-init'>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
// See https://webidl.spec.whatwg.org/#idl-long
const maxLongValue = 2147483647;
test(() => {
assert_throws_js(TypeError, () => new CapturedMouseEvent());
}, "type argument is mandatory");
test(() => {
[
{surfaceX: -5, surfaceY: -5}, /* X, Y negative */
{surfaceX: -5, surfaceY: +5}, /* X negative, Y non-negative */
{surfaceX: +5, surfaceY: -5}, /* X non-negative, Y negative */
{surfaceX: -1, surfaceY: +5}, /* X equal to -1, Y non-negative */
{/* surfaceX: -1, */ surfaceY: +5}, /* Same with implicit surfaceX */
{surfaceX: +5, surfaceY: -1}, /* X non-negative, Y equal to -1 */
{surfaceX: +5 /*, surfaceY: -1 */}, /* Same with implicit surfaceY */
{surfaceX: maxLongValue+1, surfaceY: +5}, /* 'long' overflow for X */
{surfaceX: +5, surfaceY: maxLongValue+1}, /* 'long' overflow for Y */
].forEach(init => {
assert_throws_js(RangeError, () => new CapturedMouseEvent("", init),
`eventInitDict=${JSON.stringify(init)}`);
});
}, "Invalid surfaceX/surfaceY options cause a RangeError to be thrown");
test(() => {
[
{surfaceX: +5, surfaceY: +7}, /* Two positive values */
{surfaceX: -1, surfaceY: -1}, /* Valid case with negative values */
{surfaceX: 0, surfaceY: 0}, /* Minimal non-negative values */
{surfaceX: 0, surfaceY: 5}, /* Minimal non-negative X and positive Y */
{surfaceX: 5, surfaceY: 0}, /* Positive X and minimal non-negative Y */
{surfaceX: maxLongValue, surfaceY: maxLongValue}, /* Maximal values */
].forEach(init => {
let event = new CapturedMouseEvent("", init);
assert_equals(event.surfaceX, init.surfaceX,
`surfaceX with eventInitDict=${JSON.stringify(init)}`);
assert_equals(event.surfaceY, init.surfaceY,
`surfaceY with eventInitDict=${JSON.stringify(init)}`);
});
}, "Valid surfaceX/surfaceY options are used as initial values");
test(() => {
let event = new CapturedMouseEvent("");
assert_equals(event.surfaceX, -1,
`surfaceX with implicit eventInitDict={}`);
assert_equals(event.surfaceY, -1,
`surfaceY with implicit eventInitDict={}`);
[
{},
{surfaceX: -1},
{surfaceY: -1},
].forEach(init => {
let event = new CapturedMouseEvent("", init);
assert_equals(event.surfaceX, -1,
`surfaceX with eventInitDict=${JSON.stringify(init)}`);
assert_equals(event.surfaceY, -1,
`surfaceY with eventInitDict=${JSON.stringify(init)}`);
});
}, "surfaceX/surfaceY default to -1");
</script>
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