36 lines
1.4 KiB
HTML
36 lines
1.4 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>HTML Test: focus() on shadow host within an iframe with delegatesFocus</title>
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/resources/testdriver.js"></script>
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<script src="/resources/testdriver-vendor.js"></script>
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<body>
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<script>
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test(() => {
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const iframe = document.createElement("iframe");
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document.body.appendChild(iframe);
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iframe.addEventListener("load", () => {
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iframe.contentDocument.body.innerHTML =
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`<div id="host"></div>`;
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const host = iframe.contentDocument.getElementById("host");
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const firstInput = iframe.contentDocument.createElement("input");
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const secondInput = iframe.contentDocument.createElement("input");
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host.attachShadow({mode: 'open', delegatesFocus: true});
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host.shadowRoot.appendChild(firstInput);
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host.shadowRoot.appendChild(secondInput);
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iframe.contentDocument.body.appendChild(host);
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secondInput.focus();
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assert_equals(host.shadowRoot.activeElement, secondInput);
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// host is a shadow-including-ancestor of secondInput, so
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// the focus should remain secondInput.
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host.focus();
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assert_equals(host.shadowRoot.activeElement, secondInput);
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});
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}, "focus delegate step should not be run when the focus target is a shadow-including inclusive ancestor of the current focus.");
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</script>
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</body>
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