focus-visible-019.html (2581B)
1 <!DOCTYPE html> 2 <meta charset="utf-8" /> 3 <title>CSS Test (Selectors): Script focus on keyboard event handler matches :focus-visible</title> 4 <link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com"> 5 <link rel="help" href="https://drafts.csswg.org/selectors-4/#the-focus-visible-pseudo" /> 6 <script src="/resources/testharness.js"></script> 7 <script src="/resources/testharnessreport.js"></script> 8 <script src="/resources/testdriver.js"></script> 9 <script src="/resources/testdriver-actions.js"></script> 10 <script src="/resources/testdriver-vendor.js"></script> 11 <script src="/css/support/parsing-testcommon.js"></script> 12 <style> 13 #warning { 14 display: none; 15 background: red; 16 } 17 18 @supports not selector(:focus-visible) { 19 #instructions { 20 display: none; 21 } 22 23 #warning { 24 display: block; 25 } 26 } 27 28 :focus-visible { 29 outline: green solid 5px; 30 } 31 32 :focus:not(:focus-visible) { 33 outline: 0; 34 background-color: red; 35 } 36 </style> 37 38 <p>This test checks that changing focus via script on keyboard event handler matches <code>:focus-visible</code>.</p> 39 <ol id="instructions"> 40 <li>Type any letter with the keyboard without having done anything before.</li> 41 <li>If the element that says "Focused" has a red background, then the test result is FAILURE. If the element has a green outline, then the test result is SUCCESS.</li> 42 </ol> 43 <p id="warning">Your user-agent does not support <code>:focus-visible</code> pseudo-class, please SKIP this test.</p> 44 <div id="target" tabindex="0">Focused.</div> 45 <script> 46 // Check that :focus-visible is supported. 47 test_valid_selector(':focus-visible'); 48 49 document.addEventListener("keydown", () => { 50 target.focus(); 51 }); 52 53 async_test(function(t) { 54 test_driver.send_keys(document.body, "a").then(t.step_func_done(function() { 55 assert_equals(getComputedStyle(target).outlineColor, "rgb(0, 128, 0)", `outlineColor for ${target.tagName}#${target.id} should be green`); 56 assert_not_equals(getComputedStyle(target).backgroundColor, "rgb(255, 0, 0)", `backgroundColor for ${target.tagName}#${target.id} should NOT be red`); 57 58 let focusVisiblePseudoAll = document.querySelectorAll(':focus-visible'); 59 assert_equals(focusVisiblePseudoAll.length, 1, "Only 1 element matches ':focus-visible'"); 60 let focusVisiblePseudo = document.querySelector(':focus-visible'); 61 assert_equals(target, focusVisiblePseudo, "${target.tagName}#${target.id} matches ':focus-visible'"); 62 })); 63 }, "Focus via script on keyboard event handler matches ':focus-visible'"); 64 </script>