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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/shadow-dom/slotchange-customelements.html
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/shadow-dom/slotchange-customelements.html')
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diff --git a/testing/web-platform/tests/shadow-dom/slotchange-customelements.html b/testing/web-platform/tests/shadow-dom/slotchange-customelements.html
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+<!DOCTYPE html>
+<html>
+<head>
+<title>Shadow DOM: slotchange customelements</title>
+<meta name="author" title="Surma" href="mailto:surma@google.com">
+<link rel="help" href="https://dom.spec.whatwg.org/#signaling-slot-change">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<slots-in-constructor id="constructor-upgrade"><div></div></slots-in-constructor>
+<slots-in-callback id="callback-upgrade"><div></div></slots-in-callback>
+<script>
+var calls = [];
+class SlotsInConstructor extends HTMLElement {
+ constructor() {
+ super();
+ this.attachShadow({mode: 'open'});
+ this.shadowRoot.innerHTML = '<slot></slot>';
+ var slot = this.shadowRoot.children[0];
+ slot.addEventListener('slotchange', function() {
+ calls.push(this.id);
+ }.bind(this));
+ }
+}
+customElements.define('slots-in-constructor', SlotsInConstructor);
+class SlotsInCallback extends HTMLElement {
+ constructor() {
+ super();
+ }
+
+ connectedCallback() {
+ this.attachShadow({mode: 'open'});
+ this.shadowRoot.innerHTML = '<slot></slot>';
+ var slot = this.shadowRoot.children[0];
+ slot.addEventListener('slotchange', function() {
+ calls.push(this.id);
+ }.bind(this));
+ }
+}
+customElements.define('slots-in-callback', SlotsInCallback);
+</script>
+<slots-in-constructor id="constructor-parser"><div></div></slots-in-constructor>
+<slots-in-callback id="callback-parser"><div></div></slots-in-callback>
+<script>
+test(function () {
+ assert_true(calls.includes("constructor-parser"));
+ assert_true(calls.includes("callback-parser"));
+ assert_true(calls.includes("constructor-upgrade"));
+ assert_true(calls.includes("callback-upgrade"));
+}, 'slotchange must fire on initialization of custom elements with slotted children');
+done();
+</script>
+</body>
+</html>