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MozReview-Commit-ID: LvpIb2OK2GS --HG-- rename : testing/web-platform/tests/conformance-checkers/html/elements/keygen/challenge-isvalid.html => testing/web-platform/tests/conformance-checkers/html/elements/keygen/challenge-novalid.html rename : testing/web-platform/tests/conformance-checkers/html/elements/keygen/keytype-isvalid.html => testing/web-platform/tests/conformance-checkers/html/elements/keygen/keytype-novalid.html rename : testing/web-platform/tests/conformance-checkers/html/elements/keygen/model-isvalid.html => testing/web-platform/tests/conformance-checkers/html/elements/keygen/model-also-novalid.html rename : testing/web-platform/tests/conformance-checkers/html/elements/keygen/no-attributes-isvalid.html => testing/web-platform/tests/conformance-checkers/html/elements/keygen/no-attributes-novalid.html rename : testing/web-platform/tests/conformance-checkers/xhtml/elements/keygen/054-isvalid.xhtml => testing/web-platform/tests/conformance-checkers/xhtml/elements/keygen/054-also-novalid.xhtml rename : testing/web-platform/tests/conformance-checkers/xhtml/elements/keygen/055-isvalid.xhtml => testing/web-platform/tests/conformance-checkers/xhtml/elements/keygen/055-also-novalid.xhtml rename : testing/web-platform/tests/conformance-checkers/xhtml/elements/keygen/056-isvalid.xhtml => testing/web-platform/tests/conformance-checkers/xhtml/elements/keygen/056-also-novalid.xhtml rename : testing/web-platform/tests/conformance-checkers/xhtml/elements/keygen/057-isvalid.xhtml => testing/web-platform/tests/conformance-checkers/xhtml/elements/keygen/057-also-novalid.xhtml rename : testing/web-platform/tests/conformance-checkers/xhtml/elements/keygen/058-isvalid.xhtml => testing/web-platform/tests/conformance-checkers/xhtml/elements/keygen/058-also-novalid.xhtml rename : testing/web-platform/tests/html-media-capture/capture_fallback_file_upload.html => testing/web-platform/tests/html-media-capture/capture_fallback_file_upload-manual.html rename : testing/web-platform/tests/html/obsolete/requirements-for-implementations/the-marquee-element-0/marquee-start.html => testing/web-platform/tests/html/obsolete/requirements-for-implementations/the-marquee-element-0/marquee-start-manual.html rename : testing/web-platform/tests/html/obsolete/requirements-for-implementations/the-marquee-element-0/marquee-stop.html => testing/web-platform/tests/html/obsolete/requirements-for-implementations/the-marquee-element-0/marquee-stop-manual.html rename : testing/web-platform/tests/service-workers/cache-storage/serviceworker/credentials.html => testing/web-platform/tests/service-workers/cache-storage/serviceworker/credentials.https.html
75 lines
3.5 KiB
HTML
75 lines
3.5 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>Custom Elements: HTML parser must construct a custom element instead of upgrading</title>
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<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org">
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<meta name="assert" content="HTML parser must construct a custom element instead of upgrading">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<link rel="help" href="https://html.spec.whatwg.org/#create-an-element-for-the-token">
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<link rel="help" href="https://dom.spec.whatwg.org/#concept-create-element">
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</head>
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<body>
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<div id="log"></div>
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<script>
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let anotherElementCreatedBeforeSuperCall = undefined;
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let elementCreatedBySuperCall = undefined;
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let shouldCreateElementBeforeSuperCall = true;
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class InstantiatesItselfBeforeSuper extends HTMLElement {
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constructor() {
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if (shouldCreateElementBeforeSuperCall) {
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shouldCreateElementBeforeSuperCall = false;
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anotherElementCreatedBeforeSuperCall = new InstantiatesItselfBeforeSuper();
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}
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super();
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elementCreatedBySuperCall = this;
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}
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};
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customElements.define('instantiates-itself-before-super', InstantiatesItselfBeforeSuper);
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let shouldCreateAnotherInstance = true;
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let anotherInstance = undefined;
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let firstInstance = undefined;
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class ReturnsAnotherInstance extends HTMLElement {
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constructor() {
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super();
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if (shouldCreateAnotherInstance) {
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shouldCreateAnotherInstance = false;
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firstInstance = this;
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anotherInstance = new ReturnsAnotherInstance;
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return anotherInstance;
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} else
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return this;
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}
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};
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customElements.define('returns-another-instance', ReturnsAnotherInstance);
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</script>
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<instantiates-itself-before-super></instantiates-itself-before-super>
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<returns-another-instance></returns-another-instance>
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<script>
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test(function () {
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var instance = document.querySelector('instantiates-itself-before-super');
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assert_true(instance instanceof InstantiatesItselfBeforeSuper, 'HTML parser must insert the synchronously constructed custom element');
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assert_equals(instance, elementCreatedBySuperCall, 'HTML parser must insert the element returned by the custom element constructor');
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assert_not_equals(instance, anotherElementCreatedBeforeSuperCall, 'HTML parser must not insert another instance of the custom element created before super() call');
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assert_equals(anotherElementCreatedBeforeSuperCall.parentNode, null, 'HTML parser must not insert another instance of the custom element created before super() call');
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}, 'HTML parser must use the returned value of the custom element constructor instead of the one created before super() call');
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test(function () {
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var instance = document.querySelector('returns-another-instance');
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assert_true(instance instanceof ReturnsAnotherInstance, 'HTML parser must insert the synchronously constructed custom element');
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assert_equals(instance, anotherInstance, 'HTML parser must insert the element returned by the custom element constructor');
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assert_not_equals(instance, firstInstance, 'HTML parser must not insert the element created by super() call if the constructor returned another element');
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assert_equals(firstInstance.parentNode, null, 'HTML parser must not insert the element created by super() call if the constructor returned another element');
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}, 'HTML parser must use the returned value of the custom element constructor instead using the one created in super() call');
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</script>
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</body>
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</html>
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