| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>Custom Elements: Changes to the HTML parser</title> |
| <meta name="author" title="John Dai" href="mailto:jdai@mozilla.com"> |
| <meta name="assert" content="HTML parser creates a custom element which contains is attribute"> |
| <link rel="help" href="https://html.spec.whatwg.org/#create-an-element-for-the-token"> |
| <link rel="help" href="https://dom.spec.whatwg.org/#concept-create-element"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| </head> |
| <body> |
| <div id="log"></div> |
| <autonomous-custom-element id="instance1" is="is-custom-element"></autonomous-custom-element> |
| <script> |
| |
| class AutonomousCustomElement extends HTMLElement { }; |
| class IsCustomElement extends HTMLElement { }; |
| |
| customElements.define('autonomous-custom-element', AutonomousCustomElement); |
| customElements.define('is-custom-element', IsCustomElement); |
| |
| test(function () { |
| var customElement = document.getElementById('instance1'); |
| |
| assert_true(customElement instanceof HTMLElement, 'A resolved custom element must be an instance of HTMLElement'); |
| assert_false(customElement instanceof HTMLUnknownElement, 'A resolved custom element must NOT be an instance of HTMLUnknownElement'); |
| assert_true(customElement instanceof AutonomousCustomElement, 'A resolved custom element must be an instance of that custom element'); |
| assert_equals(customElement.localName, 'autonomous-custom-element'); |
| assert_equals(customElement.namespaceURI, 'http://www.w3.org/1999/xhtml', 'A custom element HTML must use HTML namespace'); |
| |
| }, 'HTML parser must create a defined autonomous custom element when customElements.define comes after HTML parser creation'); |
| |
| </script> |
| <autonomous-custom-element id="instance2" is="is-custom-element"></autonomous-custom-element> |
| <script> |
| |
| test(function () { |
| var customElement = document.getElementById('instance2'); |
| |
| assert_true(customElement instanceof HTMLElement, 'A resolved custom element must be an instance of HTMLElement'); |
| assert_false(customElement instanceof HTMLUnknownElement, 'A resolved custom element must NOT be an instance of HTMLUnknownElement'); |
| assert_true(customElement instanceof AutonomousCustomElement, 'A resolved custom element must be an instance of that custom element'); |
| assert_equals(customElement.localName, 'autonomous-custom-element'); |
| assert_equals(customElement.namespaceURI, 'http://www.w3.org/1999/xhtml', 'A custom element HTML must use HTML namespace'); |
| |
| }, 'HTML parser must create a defined autonomous custom element when customElements.define comes before HTML parser creation'); |
| |
| </script> |
| </body> |
| </html> |
