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<!doctype html>
<meta charset="utf-8" />
<link rel="author" title="Keith Cirkel" href="mailto:keithamus@github.com" >
<link rel="author" title="Luke Warlow" href="mailto:lwarlow@igalia.com" >
<link rel="help" href="https://open-ui.org/components/interest-invokers.explainer/" />
<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="resources/invoker-utils.js"></script>
<div id="div"></div>
<button id="button"></button>
<script>
test(function () {
const event = new InterestEvent("test");
assert_equals(event.source, null);
assert_readonly(event, "source", "readonly attribute value");
}, "source is readonly defaulting to null");
test(function () {
const eventInit = { source: document.body };
const event = new InterestEvent("test", eventInit);
assert_equals(event.source, document.body);
}, "InterestEventInit properties set value (manual event)");
test(function () {
const eventInit = {
source: document.getElementById("div"),
};
const event = new InterestEvent("beforetoggle", eventInit);
assert_equals(event.source, document.getElementById("div"));
}, "InterestEventInit properties set value (beforetoggle event)");
test(function () {
const eventInit = {
source: document.getElementById("button"),
};
const event = new InterestEvent("toggle", eventInit);
assert_equals(event.source, document.getElementById("button"));
}, "InterestEventInit properties set value (toggle event)");
test(function () {
const event = new InterestEvent("test", { source: undefined });
assert_equals(event.source, null);
}, "source set to undefined");
test(function () {
const event = new InterestEvent("test", { source: null });
assert_equals(event.source, null);
}, "source set to null");
test(function () {
assert_throws_js(
TypeError,
function () {
new InterestEvent("test", { source: false });
},
"source is not an object",
);
}, "source set to false");
test(function () {
assert_throws_js(
TypeError,
function () {
const event = new InterestEvent("test", { source: true });
},
"source is not an object",
);
}, "source set to true");
test(function () {
assert_throws_js(
TypeError,
function () {
const event = new InterestEvent("test", { source: {} });
},
"source is not an object",
);
}, "source set to {}");
test(function () {
assert_throws_js(
TypeError,
function () {
const eventInit = { source: new XMLHttpRequest() };
const event = new InterestEvent("toggle", eventInit);
},
"source is not an Element",
);
}, "source set to non-Element EventTarget");
</script>
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