| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>HTML Test: focus - the sequential focus navigation order with shadow dom that delegates focus and all tabindex=0</title> |
| <link rel="help" href="https://html.spec.whatwg.org/multipage/interaction.html#sequential-focus-navigation"> |
| <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> |
| <script src="resources/shadow-utils.js"></script> |
| <body> |
| <script> |
| // Structure: |
| // <div #aboveHost tabindex=0> |
| // <div #host tabindex=0> |
| // #shadowRoot (delegatesFocus) |
| // <div #aboveSlot tabindex=0> |
| // <slot #slotAbove tabindex=0> |
| // (slotted) <div #slottedAbove tabindex=0> |
| // <slot #slotBelow tabindex=0> |
| // (slotted) <div #slottedBelow tabindex=0> |
| // <div #belowSlot tabindex=0> |
| // <div #belowHost tabindex=0> |
| |
| promise_test(() => { |
| let elementsInFlatTreeOrder; |
| let [aboveHost, host, aboveSlot, slotAbove, slottedAbove, slotBelow, slottedBelow, belowSlot, belowHost] = elementsInFlatTreeOrder = prepareDOM(document.body, true); |
| setTabIndex(elementsInFlatTreeOrder, 0); |
| resetFocus(); |
| // Focus should move in flat tree order since every one of them has tabindex ==0, |
| // but doesn't include slots and #host. |
| return assertFocusOrder([aboveHost, aboveSlot, slottedAbove, slottedBelow, belowSlot, belowHost]); |
| }, "Order when all tabindex=0 is and delegatesFocus = true"); |
| </script> |
| </body> |
