| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>HTML Test: Blur on shadow host</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/resources/testdriver.js"></script> |
| <script src="/resources/testdriver-vendor.js"></script> |
| |
| <div id="host"> |
| <input id="slotted"> |
| </div> |
| |
| <script> |
| const host = document.getElementById("host"); |
| |
| const shadowRoot = host.attachShadow({ mode: "open", delegatesFocus: true }); |
| |
| shadowRoot.innerHTML = "<input><slot>" |
| |
| test(function() { |
| host.focus(); |
| assert_equals(document.activeElement, host); |
| assert_equals(shadowRoot.activeElement, shadowRoot.querySelector("input")); |
| host.blur(); |
| assert_equals(document.activeElement, document.body); |
| assert_equals(shadowRoot.activeElement, null); |
| }, "Calling blur() on shadow host with delegatesFocus should remove the focus."); |
| |
| test(function() { |
| const slotted = document.getElementById("slotted"); |
| slotted.focus(); |
| assert_equals(document.activeElement, slotted); |
| assert_equals(shadowRoot.activeElement, null) |
| host.blur(); |
| assert_equals(document.activeElement, slotted); |
| assert_equals(shadowRoot.activeElement, null) |
| }, "Calling blur() on shadow host with delegatesFocus when the focus is on a slotted element should not remove the focus."); |
| </script> |