| <!DOCTYPE html> |
| <html class="reftest-wait"> |
| <meta charset="utf-8"> |
| <title>Selectors Level 4: focus-within with shadow DOM</title> |
| <link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com"> |
| <link rel="help" href="https://drafts.csswg.org/selectors-4/#focus-within-pseudo"> |
| <link rel="help" href="https://dom.spec.whatwg.org/#shadow-trees"> |
| <link rel="match" href="focus-within-shadow-001-ref.html"> |
| <meta name="flags" content="dom"> |
| <meta name="assert" content="Checks that ':focus-within' is propagated to the flat tree ancestors, even if it comes from a slotted element."> |
| <style> |
| /* Suppress things that cannot be reproduced in the reference file */ |
| :focus { |
| outline: none; |
| } |
| :focus-within { |
| border-color: green; |
| } |
| </style> |
| <p>Test passes if there is a green rectangle below.</p> |
| |
| <div id="log"></div> |
| <script> |
| if (!document.body.attachShadow) |
| document.getElementById("log").innerHTML = "<strong>Skip this test, shadow DOM is not supported.</strong>"; |
| </script> |
| |
| <div id="shadow-host"> |
| <div id="focusme" tabindex="1"></div> |
| </div> |
| |
| <script> |
| var shadowHost = document.getElementById("shadow-host"); |
| shadowHost.attachShadow({ mode: "open"}).innerHTML = |
| "<style>" + |
| " #shadow-div:focus-within { border: solid 15px green; }" + |
| "</style>" + |
| "<div id='shadow-div'>" + |
| " <slot></slot>" + |
| "</div>"; |
| var focusme = document.getElementById("focusme"); |
| focusme.focus(); |
| document.documentElement.classList.remove("reftest-wait"); |
| </script> |
| </html> |
