[EuiPageHeader] `rightSideItems` Update DOM to Match Display Order #6753

breehall · 2023-05-03T21:12:37Z

Summary

EuiPageHeader intentionally sets the content of the header to have a flex-direction of row-reverse. This is causing the last element of the within the array of items to catch focus first (via screenreader and keyboard).

This PR takes the responsibility of display order away from flex. Instead, the array is cloned and reversed so that the DOM matches the display order. Now, when accessed by keyboard, the first element in the list catches focus first.

Before & After

Screen.Recording.2023-05-03.at.5.02.13.PM.mov

Screen.Recording.2023-05-03.at.5.02.54.PM.mov

QA

View the Page Header component in the PR preview. Use a keyboard to navigate the examples. For each, the Do Something button should catch focus before the Add Something

General checklist

Checked in Chrome, Safari, Edge, and Firefox
Added or updated jest and cypress tests
Checked for breaking changes and labeled appropriately
Checked for accessibility including keyboard-only and screenreader modes
A changelog entry exists and is marked appropriately

…ghtSideItems. This causes the list to be displayed in one order and show as reversed with CSS, causing screenreaders and keyboards to focus on the last element in the list first. Added a prop to the wrapWithFlex function that will ensure the DOM order matches the display order of rightSideItems.

kibanamachine · 2023-05-03T21:40:33Z

Preview documentation changes for this PR: https://eui.elastic.co/pr_6753/

kibanamachine · 2023-05-04T13:35:49Z

Preview documentation changes for this PR: https://eui.elastic.co/pr_6753/

breehall · 2023-05-04T13:43:16Z

src/components/page/page_header/__snapshots__/page_header.test.tsx.snap

+          class="euiFlexGroup emotion-euiFlexGroup-wrap-l-flexStart-stretch-row"
        >
          <div
            class="euiFlexItem emotion-euiFlexItem-growZero"
          >
            <button>
-              Button 1
+              Button 2
            </button>
          </div>
          <div
            class="euiFlexItem emotion-euiFlexItem-growZero"
          >
            <button>
-              Button 2
+              Button 1
            </button>


This snapshot change is expected. Previously with flex, in the DOM the array would be documented as [1,2], but displayed as [2,1].

Now the DOM order matches the display order.

kibanamachine · 2023-05-04T14:06:58Z

Preview documentation changes for this PR: https://eui.elastic.co/pr_6753/

1Copenut

@breehall I reviewed this in VoiceOver + Safari and on the keyboard in Chrome. Everything behaved correctly for keyboard and screenreader native navigation. No issues in axe browser plugin.

I offered one small code refactor suggestion. It's just that, an opinionated suggestion, so feel free to accept or keep your original implementation. It took me a beat longer to reason about the reverse logic, so I passed reverse through to your if / else block and added the reverse() Array method where appropriate. Unit tests and snapshots passed, so either way.

LMK what you feel is the best implementation and I'll approve. Thank you!

src/components/page/page_header/page_header_content.tsx

cee-chen · 2023-05-04T16:49:36Z

src/components/page/page_header/page_header_content.tsx

+      const reverseRightSideItems = reverse
+        ? rightSideItems.reverse()


.reverse() mutates the array in place. Do not ever call it without shallow cloning the array first, especially on arrays coming from consumers (vs arrays we define/control).

Suggested change

const reverseRightSideItems = reverse

? rightSideItems.reverse()

const reverseRightSideItems = reverse

? [...rightSideItems].reverse()

Do not ever call it without shallow cloning the array first

Thank you for this and duly noted!

To clarify, I was being a little didactic with the initial "do not ever". If we're the ones defining an array and know we want to simply mutate/reverse the array in place, great, mutate away (although some schools of thought in JS would still say don't do this :).

In this case rightSideItems is not an array we define/own and we do not want ever want to mutate consumer data.

upcoming_changelogs/6753.md

src/components/page/page_header/__snapshots__/page_header.test.tsx.snap

Co-authored-by: Cee Chen <549407+cee-chen@users.noreply.github.com>

… on smaller screens

kibanamachine · 2023-05-04T18:26:38Z

Preview documentation changes for this PR: https://eui.elastic.co/pr_6753/

kibanamachine · 2023-05-04T19:00:33Z

Preview documentation changes for this PR: https://eui.elastic.co/pr_6753/

cee-chen

One last code cleanup change request and I think this is good to go!

src/components/page/page_header/page_header_content.tsx

… testing on smaller screens" This reverts commit 12aaaea. Reverting example change that was only intended for testing

Co-authored-by: Cee Chen <549407+cee-chen@users.noreply.github.com>

… into pageheader/right-side Pulling changes that were made in Github UI

cee-chen

LGTM once tests pass!

kibanamachine · 2023-05-04T23:26:56Z

Preview documentation changes for this PR: https://eui.elastic.co/pr_6753/

## Summary `eui@77.2.2` ⏩ `eui@79.0.1` 🦴 The primary changes in this upgrade are around the deprecated `EuiLoadingContent` being removed in favor of `EuiSkeletonText`. - Most instances have been a [direct swap of usage](327626a), but [some replacements were a bit more opinionated](e6ceb36) as I saw them as potential to take advantage of `EuiSkeletonText`'s syntactical sugar and screen reader announcements for when state switches to loaded. --- ## [`79.0.1`](https://github.com/elastic/eui/tree/v79.0.1) **Bug fixes** - Fixed broken push `EuiFlyout` behavior ([#6764](elastic/eui#6764)) ## [`79.0.0`](https://github.com/elastic/eui/tree/v79.0.0) - Updated all `EuiSkeleton` components with new props that allow for more control over screen reader live announcements: `announceLoadingStatus`, `announceLoadedStatus`, and `ariaLiveProps` ([#6752](elastic/eui#6752)) - Improved keyboard accessibility in `EuiPageHeader` by ensuring the right side menu items come into focus from left to right. ([#6753](elastic/eui#6753)) **Breaking changes** - Removed deprecated `EuiLoadingContent`. Use the `EuiSkeleton` components instead. ([#6754](elastic/eui#6754)) ## [`78.0.0`](https://github.com/elastic/eui/tree/v78.0.0) - Improved the contrast ratio of `EuiCheckbox`, `EuiRadio`, and `EuiSwitch` in their unchecked states to meet WCAG AA guidelines. ([#6729](elastic/eui#6729)) - Added React Testing Library `*ByTestSubject` custom commands to `within()`. RTL utilities can be imported from `@elastic/eui/lib/test/rtl`. ([#6737](elastic/eui#6737)) - Updated `EuiAvatar` to support a new letter `casing` prop that allow customizing text capitalization ([#6739](elastic/eui#6739)) - Updated `EuiFocusTrap` to support the `gapMode` prop configuration (now defaults to `padding`) ([#6744](elastic/eui#6744)) **Bug fixes** - Fixed inconsistency in `EuiSearchBar`'s AND/OR semantics between DSL and query string generation ([#6717](elastic/eui#6717)) - Fixed `EuiFieldNumber`'s native browser validity detection causing extra unnecessary rerenders ([#6741](elastic/eui#6741)) - Fixed the `scrollLock` property on `EuiFocusTrap` (and other components using `EuiFocusTrap`, such as `EuiFlyout` and `EuiModal`) to no longer block scrolling on nested portalled content, such as combobox dropdowns ([#6744](elastic/eui#6744)) **Breaking changes** - `EuiAvatar`s with the default `user` type will now default to capitalizing all initials in uppercase ([#6739](elastic/eui#6739)) --------- Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

CHANGELOG

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breehall commented May 4, 2023

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breehall requested a review from 1Copenut May 4, 2023 13:44

breehall marked this pull request as ready for review May 4, 2023 13:44

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breehall and others added 3 commits May 4, 2023 13:51

Update upcoming_changelogs/6753.md

6997308

Co-authored-by: Cee Chen <549407+cee-chen@users.noreply.github.com>

Update src/components/page/page_header/page_header_content.tsx

c34fd38

Co-authored-by: Cee Chen <549407+cee-chen@users.noreply.github.com>

[REVERT ME] Add responsive prop to the base EuiPageHeader for testing…

12aaaea

… on smaller screens

Update snapshots for code changes that occurred in Github UI

8e96212

breehall requested a review from cee-chen May 4, 2023 20:26

cee-chen reviewed May 4, 2023

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breehall and others added 4 commits May 4, 2023 19:02

Revert "[REVERT ME] Add responsive prop to the base EuiPageHeader for…

8de8579

… testing on smaller screens" This reverts commit 12aaaea. Reverting example change that was only intended for testing

Update src/components/page/page_header/page_header_content.tsx

e6ef7a7

Co-authored-by: Cee Chen <549407+cee-chen@users.noreply.github.com>

Update src/components/page/page_header/page_header_content.tsx

9bd93f5

Co-authored-by: Cee Chen <549407+cee-chen@users.noreply.github.com>

Merge branch 'pageheader/right-side' of https://github.com/breehall/eui…

0aa50f1

… into pageheader/right-side Pulling changes that were made in Github UI

cee-chen approved these changes May 4, 2023

View reviewed changes

breehall merged commit b7eb120 into elastic:main May 5, 2023

cee-chen mentioned this pull request May 9, 2023

Upgrade EUI to v79.0.1 elastic/kibana#156925

Merged

JasonStoltz added the accessibility label Jun 29, 2023

breehall deleted the pageheader/right-side branch October 6, 2023 16:04

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[EuiPageHeader] `rightSideItems` Update DOM to Match Display Order #6753

[EuiPageHeader] `rightSideItems` Update DOM to Match Display Order #6753

breehall commented May 3, 2023 •

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kibanamachine commented May 4, 2023

		const reverseRightSideItems = reverse
		? rightSideItems.reverse()

[EuiPageHeader] rightSideItems Update DOM to Match Display Order #6753

[EuiPageHeader] rightSideItems Update DOM to Match Display Order #6753

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breehall commented May 3, 2023 • edited Loading

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kibanamachine commented May 4, 2023

[EuiPageHeader] `rightSideItems` Update DOM to Match Display Order #6753

[EuiPageHeader] `rightSideItems` Update DOM to Match Display Order #6753

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