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Global Styles: add accessible label to Back button #35325

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merged 3 commits into from Oct 5, 2021

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ciampo
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@ciampo ciampo commented Oct 4, 2021

Description

Fixes #35291

Pass an aria-label prop to the back button in ScreenHeader saying 'Navigate to the previous view'

How has this been tested?

  • Clone this PR's branch on your local machine
  • Start docker
  • npm run distclean && npm ci && npm run wp-env start && npm run dev
  • Visit localhost:8888/wp-admin, active the TT1-blocks theme and open the Site Editor
  • Open the Global Styles sidebar and navigate across screens.
  • Using the browser devtools, make sure that the navigations buttons (and in particular the "back" icon button) have accessible labels (which means that Global Styles: the "back" button needs an accessible label #35291 can't be reproduced)

Screenshots

image

Types of changes

Checklist:

  • My code is tested.
  • My code follows the WordPress code style.
  • My code follows the accessibility standards.
  • I've tested my changes with keyboard and screen readers.
  • My code has proper inline documentation.
  • I've included developer documentation if appropriate.
  • N/A I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).

@ciampo ciampo self-assigned this Oct 4, 2021
@ciampo ciampo added [a11y] Labelling [Type] Bug An existing feature does not function as intended Global Styles Anything related to the broader Global Styles efforts, including Styles Engine and theme.json labels Oct 4, 2021
@ciampo ciampo added this to In progress (owned) ⏳ in WordPress Components via automation Oct 4, 2021
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Size Change: +48 B (0%)

Total Size: 1.07 MB

Filename Size Change
build/block-editor/index.min.js 134 kB -9 B (0%)
build/block-library/index.min.js 146 kB +25 B (0%)
build/edit-site/index.min.js 29 kB +32 B (0%)
ℹ️ View Unchanged
Filename Size
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compressed-size-action

<Item onClick={ () => navigator.push( path, { isBack } ) } { ...props }>
<Item
onClick={ () => navigator.push( path, { isBack } ) }
aria-label={ labelProp ?? defaultLabel }
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Should this be label prop like the Button component. I also wonder why it's not taking the "content" as a label like it's supposed to do by default for buttons.

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@ciampo ciampo Oct 4, 2021

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Should this be label prop like the Button component.

The Item component renders a vanilla HTML button (and not a WordPress Button — sorry if I caused any confusion in a previous comment where I stated the opposite).

I also wonder why it's not taking the "content" as a label like it's supposed to do by default for buttons.

I believe it is, but in the case of the back buttons in the Global Styles sidebar, these buttons only have an icon as their content (no human-readable text)

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Got it Thanks, should we use a label prop to align with Button or keep the raw aria-label? I think it's a bit mixed right now in the different components we have and not sure what's the best path forward (maybe a small preference for label in components where it's a generic use-case for compatibility with mobile).

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I agree that it would be nice to have a less mixed approach to how we pass and name props related to labels.

Given the fact that Item renders a HTML button, at the moment we have to pass the aria-label prop to Item (since label is not a standard HTML attribute).
Maybe a way to improve the situation would be to rename the label prop on the NavigationButton component to aria-label? I could also remove the changes from the NavigationButton and pass the aria-label attribute directly from the ScreenHeader component:

diff --git a/packages/edit-site/src/components/global-styles/header.js b/packages/edit-site/src/components/global-styles/header.js
index 1ddd562aa2..1496bb440c 100644
--- a/packages/edit-site/src/components/global-styles/header.js
+++ b/packages/edit-site/src/components/global-styles/header.js
@@ -31,6 +31,7 @@ function ScreenHeader( { back, title, description } ) {
 						}
 						size="small"
 						isBack
+						aria-label={ __( 'Navigate to the previous screen' ) }
 					/>
 				</View>
 				<Spacer>

Separately from this PR, we could consider rendering a WordPress Button instead of a HTML button inside Item, which could help to make our APIs a bit more coherent

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I could also remove the changes from the NavigationButton and pass the aria-label attribute directly from the ScreenHeader component

I went ahead and applied that suggested change in a528e22 (#35325) — which greatly simplifies the code changes in this PR

@ciampo ciampo merged commit ee4fba6 into trunk Oct 5, 2021
WordPress Components automation moved this from In progress (owned) ⏳ to Done 🎉 Oct 5, 2021
@ciampo ciampo deleted the fix/global-styles-back-button-label branch October 5, 2021 08:15
@github-actions github-actions bot added this to the Gutenberg 11.7 milestone Oct 5, 2021
@priethor priethor added [Focus] Accessibility (a11y) Changes that impact accessibility and need corresponding review (e.g. markup changes). and removed [a11y] Labelling labels Jul 24, 2023
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Labels
[Focus] Accessibility (a11y) Changes that impact accessibility and need corresponding review (e.g. markup changes). Global Styles Anything related to the broader Global Styles efforts, including Styles Engine and theme.json [Type] Bug An existing feature does not function as intended
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Global Styles: the "back" button needs an accessible label
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