Import tests for custom element reactions from WebKit. (#3835)
diff --git a/custom-elements/disconnected-callbacks.html b/custom-elements/disconnected-callbacks.html new file mode 100644 index 0000000..97ea67a --- /dev/null +++ b/custom-elements/disconnected-callbacks.html
@@ -0,0 +1,93 @@ +<!DOCTYPE html> +<html> +<head> +<title>Custom Elements: disconnectedCallback</title> +<meta name="author" title="Ryosuke Niwa" href="mailto:rniwa@webkit.org"> +<meta name="assert" content="disconnectedCallback must be enqueued whenever custom element is removed from a document"> +<link rel="help" href="https://w3c.github.io/webcomponents/spec/custom/#dfn-connected-callback"> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> +<script src="resources/document-types.js"></script> +</head> +<body> +<div id="log"></div> +<script> + +var calls = []; +class MyCustomElement extends HTMLElement { + connectedCallback() { calls.push('connected', this); } + disconnectedCallback() { calls.push('disconnected', this); } +} +customElements.define('my-custom-element', MyCustomElement); + +DocumentTypes.forEach(function (entry) { + var documentName = entry.name; + var getDocument = entry.create; + + promise_test(function () { + return getDocument().then(function (doc) { + var instance = document.createElement('my-custom-element'); + doc.documentElement.appendChild(instance); + calls = []; + doc.documentElement.removeChild(instance); + assert_array_equals(calls, ['disconnected', instance]); + }); + }, 'Removing a custom element from a ' + documentName + ' must enqueue and invoke disconnectedCallback'); + + promise_test(function () { + return getDocument().then(function (doc) { + var instance = document.createElement('my-custom-element'); + var parent = document.createElement('div'); + parent.appendChild(instance); + doc.documentElement.appendChild(parent); + calls = []; + doc.documentElement.removeChild(parent); + assert_array_equals(calls, ['disconnected', instance]); + }); + }, 'Removing an ancestor of custom element from a ' + documentName + ' must enqueue and invoke disconnectedCallback'); + + promise_test(function () { + return getDocument().then(function (doc) { + var instance = document.createElement('my-custom-element'); + var host = doc.createElementNS('http://www.w3.org/1999/xhtml', 'div'); + var shadowRoot = host.attachShadow({mode: 'closed'}); + doc.documentElement.appendChild(host); + shadowRoot.appendChild(instance); + + calls = []; + shadowRoot.removeChild(instance); + assert_array_equals(calls, ['disconnected', instance]); + }); + }, 'Removing a custom element from a shadow tree in a ' + documentName + ' must enqueue and invoke disconnectedCallback'); + + promise_test(function () { + return getDocument().then(function (doc) { + var instance = document.createElement('my-custom-element'); + var host = doc.createElementNS('http://www.w3.org/1999/xhtml', 'div'); + var shadowRoot = host.attachShadow({mode: 'closed'}); + shadowRoot.appendChild(instance); + doc.documentElement.appendChild(host); + + calls = []; + doc.documentElement.removeChild(host); + assert_array_equals(calls, ['disconnected', instance]); + }); + }, 'Removing the shadow host of a custom element from a' + documentName + ' must enqueue and invoke disconnectedCallback'); + + promise_test(function () { + return getDocument().then(function (doc) { + var instance = document.createElement('my-custom-element'); + var host = doc.createElementNS('http://www.w3.org/1999/xhtml', 'div'); + var shadowRoot = host.attachShadow({mode: 'closed'}); + shadowRoot.appendChild(instance); + + calls = []; + shadowRoot.removeChild(instance); + assert_array_equals(calls, []); + }); + }, 'Removing a custom element from a detached shadow tree that belongs to a ' + documentName + ' must not enqueue and invoke disconnectedCallback'); +}); + +</script> +</body> +</html> 