31 lines
1.1 KiB
HTML
31 lines
1.1 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>HTML Test: Use tab to navigate the focus to an element inside shadow host 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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<script src="resources/shadow-utils.js"></script>
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<body>
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<div id="host"></div>
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</body>
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<script>
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const host = document.getElementById("host");
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const shadowRoot = host.attachShadow({ mode: "open", delegatesFocus: true });
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const input = document.createElement("input");
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shadowRoot.appendChild(input);
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promise_test(async function() {
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assert_equals(document.activeElement, document.body);
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// Press <tab>
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await navigateFocusForward();
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assert_equals(document.activeElement, host);
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assert_equals(shadowRoot.activeElement, input);
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assert_true(host.matches(':focus'));
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assert_true(input.matches(':focus'));
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assert_true(input.matches(':focus-visible'));
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}, ":focus should be applied to the host and :focus-visible should be applied to the child node when the focus is moved by <tab>");
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</script>
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