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<!DOCTYPE html>
<html>
<head>
<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
<link rel="help" href="https://github.com/whatwg/html/issues/10854">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id="host">
<template shadowrootmode="open" shadowrootclonable="true" shadowrootcustomelementregistry>
<div>
<some-element></some-element>
<other-element></other-element>
</div>
</template>
</div>
<template id="template">
<some-element>
<template shadowrootmode="closed" shadowrootclonable="true" shadowrootcustomelementregistry>
<div>
<some-element></some-element>
<other-element></other-element>
</div>
</template>
</some-element>
</template>
<div id="root">
<span></span>
</div>
<script>
const scopedRegistry = new CustomElementRegistry();
const emptyRegistry = new CustomElementRegistry();
class GlobalSomeElement extends HTMLElement {
elementInternals;
constructor() {
super();
this.elementInternals = this.attachInternals();
if (this.elementInternals.shadowRoot)
scopedRegistry.initialize(this.elementInternals.shadowRoot);
}
};
class GlobalOtherElement extends HTMLElement {};
class ScopedSomeElement extends HTMLElement {};
customElements.define('some-element', GlobalSomeElement);
customElements.define('other-element', GlobalOtherElement);
scopedRegistry.define('some-element', ScopedSomeElement);
test(() => {
assert_true(document.importNode(document.createElement('some-element')) instanceof GlobalSomeElement);
}, 'importNode should clone using the global regsitry by default');
test(() => {
assert_true(document.importNode(document.createElement('some-element'), {customElementRegistry: scopedRegistry}) instanceof GlobalSomeElement);
}, 'importNode should clone using target\'s registry if non-null');
test(() => {
assert_true(document.importNode(document.implementation.createHTMLDocument().createElement('some-element'), {customElementRegistry: scopedRegistry}) instanceof ScopedSomeElement);
}, 'importNode should clone using the specified registry if target\'s registry is null');
test(() => {
const clone = document.importNode(host, {selfOnly: false, customElementRegistry: scopedRegistry});
assert_equals(clone.shadowRoot.querySelector('some-element').__proto__.constructor.name, 'HTMLElement');
assert_false(clone.shadowRoot.querySelector('some-element') instanceof GlobalSomeElement);
assert_false(clone.shadowRoot.querySelector('some-element') instanceof ScopedSomeElement);
assert_true(clone.shadowRoot.querySelector('other-element') instanceof HTMLElement);
assert_false(clone.shadowRoot.querySelector('other-element') instanceof GlobalOtherElement);
}, 'importNode should preserve null-ness of custom element registry');
test(() => {
const clone = document.importNode(host.shadowRoot.querySelector('div'), {selfOnly: false});
assert_equals(clone.customElementRegistry, window.customElements);
assert_true(clone.querySelector('some-element') instanceof GlobalSomeElement);
assert_true(clone.querySelector('other-element') instanceof GlobalOtherElement);
}, 'importNode should clone a shadow host with a declarative shadow DOM using the global registry by default');
test(() => {
const clone = document.importNode(host.shadowRoot.querySelector('div'), {selfOnly: false, customElementRegistry: scopedRegistry});
assert_equals(clone.customElementRegistry, scopedRegistry);
assert_true(clone.querySelector('some-element') instanceof ScopedSomeElement);
assert_false(clone.querySelector('other-element') instanceof GlobalOtherElement);
}, 'importNode should clone a shadow host with a declarative shadow DOM using a specified scoped registry');
test(() => {
const element = document.createElement('div', {customElementRegistry: emptyRegistry});
element.innerHTML = '<some-element></some-element><other-element></other-element>';
const clone = document.importNode(element, {selfOnly: false, customElementRegistry: scopedRegistry});
assert_equals(clone.customElementRegistry, emptyRegistry);
assert_true(clone.querySelector('some-element') instanceof HTMLElement);
assert_false(clone.querySelector('some-element') instanceof GlobalSomeElement);
assert_false(clone.querySelector('some-element') instanceof ScopedSomeElement);
assert_true(clone.querySelector('other-element') instanceof HTMLElement);
assert_false(clone.querySelector('other-element') instanceof GlobalOtherElement);
}, 'importNode should clone using target\'s registry if non-null, including when it\'s not the global registry');
test(() => {
const template = document.createElement('template');
template.innerHTML = '<div><some-element>hello</some-element><other-element>world</other-element></div>';
assert_equals(template.content.querySelector('some-element').__proto__.constructor.name, 'HTMLElement');
assert_equals(template.content.querySelector('other-element').__proto__.constructor.name, 'HTMLElement');
const clone = document.importNode(template.content, {selfOnly: false});
assert_equals(clone.querySelector('some-element').customElementRegistry, window.customElements);
assert_equals(clone.querySelector('some-element').__proto__.constructor.name, 'GlobalSomeElement');
assert_equals(clone.querySelector('other-element').__proto__.constructor.name, 'GlobalOtherElement');
}, 'importNode should clone a template content using the global registry by default');
test(() => {
const template = document.createElement('template');
template.innerHTML = '<div><some-element>hello</some-element><other-element>world</other-element></div>';
assert_equals(template.content.querySelector('some-element').__proto__.constructor.name, 'HTMLElement');
assert_equals(template.content.querySelector('other-element').__proto__.constructor.name, 'HTMLElement');
const clone = document.importNode(template.content, {selfOnly: false, customElementRegistry: scopedRegistry});
assert_equals(clone.querySelector('some-element').customElementRegistry, scopedRegistry);
assert_equals(clone.querySelector('some-element').__proto__.constructor.name, 'ScopedSomeElement');
assert_equals(clone.querySelector('other-element').__proto__.constructor.name, 'HTMLElement');
}, 'importNode should clone a template content using a specified scoped registry');
test(() => {
const template = document.createElement('template');
template.innerHTML = `
<div>
<some-element>
<template>
<other-element>
hello
</other-element>
</template>
</some-element>
<other-element>
world
</other-element>
</div>`;
assert_equals(template.content.querySelector('some-element').__proto__.constructor.name, 'HTMLElement');
assert_equals(template.content.querySelector('other-element').__proto__.constructor.name, 'HTMLElement');
const clone = document.importNode(template.content, {selfOnly: false});
assert_equals(clone.querySelector('some-element').customElementRegistry, window.customElements);
assert_equals(clone.querySelector('some-element').__proto__.constructor.name, 'GlobalSomeElement');
const otherElementInTemplate = clone.querySelector('template').content.querySelector('other-element');
assert_equals(otherElementInTemplate.__proto__.constructor.name, 'HTMLElement');
assert_equals(clone.querySelector('other-element').__proto__.constructor.name, 'GlobalOtherElement');
}, 'importNode should clone a template content with a nested template element using a scoped registry');
test(() => {
const clone = document.importNode(root);
assert_false(clone.hasChildNodes());
}, "importNode: don't pass options argument");
test(() => {
const clone = document.importNode(root, false);
assert_false(clone.hasChildNodes());
}, "importNode: pass options argument with value false");
test(() => {
const clone = document.importNode(root, true);
assert_true(clone.hasChildNodes());
}, "importNode: pass options argument with value true");
test(() => {
const clone = document.importNode(root, undefined);
assert_false(clone.hasChildNodes());
}, "importNode: pass options argument with value undefined");
test(() => {
const clone = document.importNode(root, { });
assert_true(clone.hasChildNodes());
}, "importNode: pass options argument with value { }");
test(() => {
const clone = document.importNode(root, { selfOnly: false });
assert_true(clone.hasChildNodes());
}, "importNode: pass options argument with value { selfOnly: false }");
test(() => {
const clone = document.importNode(root, { selfOnly: true });
assert_false(clone.hasChildNodes());
}, "importNode: pass options argument with value { selfOnly: true }");
test(() => {
const clone = document.importNode(root, { customElementRegistry: scopedRegistry });
assert_true(clone.hasChildNodes());
}, "importNode: pass options argument with value { customElementRegistry: scopedRegistry }");
test(() => {
assert_throws_js(TypeError, () => document.importNode(root, { customElementRegistry: null }));
}, "importNode: pass options argument with value { customElementRegistry: null }");
</script>
</body>
</html>
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