43 lines
1.9 KiB
HTML
43 lines
1.9 KiB
HTML
<!DOCTYPE html>
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<title>Custom Elements: document.createElementNS should support custom elements</title>
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<link rel="help" content="https://dom.spec.whatwg.org/#concept-create-element">
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<link rel="help" content="https://dom.spec.whatwg.org/#internal-createelementns-steps">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<body>
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<script>
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test(() => {
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class MyBuiltinElement extends HTMLElement {};
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customElements.define('my-builtin', MyBuiltinElement, { extends: 'address' });
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let element = document.createElementNS('http://www.w3.org/1999/xhtml', 'p:address', { is: 'my-builtin'});
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assert_true(element instanceof MyBuiltinElement);
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assert_equals(element.prefix, 'p');
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assert_false(element.hasAttribute('is'));
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}, 'builtin: document.createElementNS should create custom elements with prefixes.');
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test(() => {
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class MyBuiltinElement2 extends HTMLElement {};
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customElements.define('my-builtin2', MyBuiltinElement2, { extends: 'address'});
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let element = document.createElementNS('urn:example', 'address', { is: 'my-builtin2' });
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assert_false(element instanceof MyBuiltinElement2);
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assert_false(element.hasAttribute('is'));
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}, 'builtin: document.createElementNS should check namespaces.');
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test(() => {
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class SuperP extends HTMLParagraphElement {}
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customElements.define("super-p", SuperP, { extends: "p" });
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const superP = document.createElementNS("http://www.w3.org/1999/xhtml", "p", { is: "super-p" });
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assert_true(superP instanceof HTMLParagraphElement);
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assert_true(superP instanceof SuperP);
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assert_equals(superP.localName, "p");
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const notSuperP = document.createElementNS("http://www.w3.org/1999/xhtml", "p", "super-p");
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assert_true(notSuperP instanceof HTMLParagraphElement);
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assert_false(notSuperP instanceof SuperP);
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assert_equals(notSuperP.localName, "p");
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}, "document.createElementNS()'s third argument is to be ignored when it's a string");
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</script>
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</body>
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