@webcomponents/custom-elements
Version:
HTML Custom Elements Polyfill
58 lines (55 loc) • 2.24 kB
HTML
<title>Custom Elements: adopt node</title>
<link rel="help" href="https://dom.spec.whatwg.org/#concept-node-adopt">
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="resources/custom-elements-helpers.js"></script>
<body>
<script>
// 3.2 For each inclusiveDescendant in node’s shadow-including inclusive descendants that is a custom
// element, enqueue a custom element callback reaction with inclusiveDescendant,
// callback name "adoptedCallback", and an empty argument list.
promise_test((t) => {
return Promise.all([
create_window_in_test(t),
create_window_in_test(t)])
.then(([w1, w2]) => {
let invocations = [];
class X extends w1.HTMLElement {
adoptedCallback() { invocations.push(['adopted', this, arguments]); }
}
w1.customElements.define('a-a', X);
let a = w1.document.createElement('a-a');
w2.document.adoptNode(a);
assert_array_equals_callback_invocations(invocations, [ ['adopted', a, [w1.document, w2.document]] ]);
});
}, 'adopting a custom element to the different document should enqueue an adoptedCallback reaction');
// 3.3 For each inclusiveDescendant in node’s shadow-including inclusive descendants, in
// shadow-including tree order, run the adopting steps with inclusiveDescendant and oldDocument.
promise_test((t) => {
return Promise.all([
create_window_in_test(t),
create_window_in_test(t)])
.then(([w1, w2]) => {
w1.document.body.innerHTML = `
<a-a id="a">
<p>
<a-a id="b"></a-a>
<a-a id="c"></a-a>
</p>
<a-a id="d"></a-a>
</a-a>`;
let invocations = [];
class X extends w1.HTMLElement {
adoptedCallback() { invocations.push(this); }
}
w1.customElements.define('a-a', X);
let a = w1.document.getElementById("a");
w2.document.adoptNode(a);
assert_array_equals(['a', 'b', 'c', 'd'], invocations.map((e) => e.id),
'four elements should have been removed in doc order');
});
}, 'shadow-including inclusive descendants should be adopted in shadow-including tree order');
</script>
</body>