Fix the navigate regions focus style #45369
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afercia
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[Focus] Accessibility (a11y)
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Rebased on latest trunk after changes for the new theming accent color, see #45289 |
aristath
approved these changes
Nov 15, 2022
jffng
reviewed
Nov 15, 2022
| tabIndex="-1" | ||
| { ...motionProps } | ||
| > | ||
| <div className="interface-navigable-region__stacker"> |
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Noting that this may have caused a regression: #45778
A fix could be to set the display + flex direction on this __stacker class, but I'm not familiar enough with the change to be sure.
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I can confirm this. The same is visible in the post editor if a theme has a non-white background.
This was referenced Nov 16, 2022
youknowriad
reviewed
Nov 17, 2022
| @@ -0,0 +1,38 @@ | |||
| # NavigableRegion | |||
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I wonder if this should be moved to the components package insect it's meant to be used in conjunction with useNavigateRegions from that package.
This was referenced Nov 28, 2022
talldan
reviewed
Jan 10, 2023
| */ | ||
| import { withPluginContext } from '@wordpress/plugins'; | ||
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| export default withPluginContext( ( context, ownProps ) => { |
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Fixes #21717
What?
When navigating through the editor regions via the dedicated keyboard shortcuts, the focused region should show a blue outline as focus indicator. This used to work well in #8554 but it's broken since at least 2 years and a half, see #21717
It appears that new layouts and features introduced over time didn't take into consideration the navigable regions need to have a focus style. There are two main issues that make the focus style not visible:
Screenshot to illustrate the z-index issue:
Screenshot to illustrate the 0 size issue (this is the Publish panel toggle button, see there's no focus style on its wrapper region):
The original purpose of these regions is to allow keyboard navigation through the main parts of the editor and show a focus style. They're now also used for layout purposes, as parts of the 'interface skeleton', which is fine. However, it's very important to keep in mind that:
Why?
A clear focus indicator is a basic accessibility requirement for all sighted keyboard users, as they need to see where focus is.
How?
navigateRegionsCSS as we don't need a fix for IE11 any longer. Note: we can't use a CSS pseudo element as suggested in Regression: the navigate region focus style is broken #21717 because the pseudo element would scroll together wit the content.NavigableRegioncomponent to abstract the markup and features of the ARIA regions.NavigableRegionrenders the focusable ARIA landmark region and a child container.z-index: -1so that any content within the region is positioned in the Z-axis at a lower level than the wrapper.navigateRegionsstylesheet.Testing Instructions
Screenshots or screencast
Animated GIF to illustrates the navigate regions focus style in action in the Post editor.