focus-tabindex-order-shadow-varying-tabindex-2.html (2316B)
1 <!DOCTYPE html> 2 <meta charset="utf-8"> 3 <title>HTML Test: focus - the sequential focus navigation order with shadow dom with varying tabindex values</title> 4 <link rel="help" href="https://html.spec.whatwg.org/multipage/interaction.html#sequential-focus-navigation"> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <script src="/resources/testdriver.js"></script> 8 <script src="/resources/testdriver-vendor.js"></script> 9 <script src="resources/shadow-utils.js"></script> 10 <body> 11 <script> 12 promise_test(async () => { 13 function createButtonInShadowDOM(host) { 14 const root = host.attachShadow({mode: "open"}); 15 root.innerHTML = "<input>"; 16 document.body.appendChild(host); 17 return root; 18 } 19 const host1 = document.createElement("div"); 20 const root1 = createButtonInShadowDOM(host1); 21 22 const forwarder = document.createElement("div"); 23 forwarder.setAttribute("tabindex", 0); 24 document.body.appendChild(forwarder); 25 26 const host2 = document.createElement("div"); 27 host2.setAttribute("tabindex", -1); 28 const root2 = createButtonInShadowDOM(host2); 29 30 const host3 = document.createElement("div"); 31 const root3 = createButtonInShadowDOM(host3); 32 33 root1.querySelector("input").focus(); 34 35 let forwarderFocused = false; 36 forwarder.addEventListener("focus", () => { 37 forwarderFocused = true; 38 root2.querySelector("input").focus(); 39 }); 40 41 // Structure: 42 // <div #host1></div> 43 // #ShadowRoot 44 // <button>Button</button> 45 // <div #forwarder tabindex=0></div> 46 // <div #host2 tabindex=-1></div> 47 // #ShadowRoot 48 // <button>Button</button> 49 // <div #host3></div> 50 // #ShadowRoot 51 // <button>Button</button> 52 assert_equals(document.activeElement, host1); 53 assert_equals(root1.activeElement, root1.querySelector("input")); 54 55 await navigateFocusForward(); 56 assert_true(forwarderFocused); 57 assert_equals(document.activeElement, host2); 58 assert_equals(root2.activeElement, root2.querySelector("input")); 59 60 // In buggy Firefox build, the following focus navigation will 61 // move the focus back to #host1's button. 62 await navigateFocusForward(); 63 assert_equals(document.activeElement, host3); 64 assert_equals(root3.activeElement, root3.querySelector("input")); 65 }, "Order with different tabindex on host") 66 </script>