Intent to Implement and Ship: aria-rowindextext and aria-colindextext

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Daniel Clark

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Jun 12, 2024, 2:35:20 PMJun 12
to blink-dev

Contact emails

dan...@microsoft.com

 

Explainer

No formal explainer but https://github.com/w3c/aria/issues/667 discusses use cases and alternatives.

 

Specification

https://w3c.github.io/aria/#aria-colindextext, https://w3c.github.io/aria/#aria-rowindextext

 

Summary

The `aria-rowindextext` and `aria-colindextext` properties can be used by developers to express semantics about a table or grid to assistive tech. These attributes are applied in addition to `aria-rowindex` or `aria-colindex` in cases where the numeric indices of rows or columns are not meaningful, for example a chessboard or a spreadsheet where the columns are named by letters rather than numbers.

 

These properties are reflected in JavaScript as:

  • `Element.ariaRowIndexText`
  • `Element.ariaColIndexText`
  • `ElementInternals.ariaRowIndexText`
  • `ElementInternals.ariaColIndexText`

 

These are part of the Interop2024 Accessibility focus area: https://wpt.fyi/results/wai-aria/idlharness.window.html?label=master&label=experimental&aligned&view=interop&q=label%3Ainterop-2024-accessibility

 

Blink component

Blink>Accessibility

 

TAG review

These properties were included for WAI-ARIA 1.3 which was reviewed by the TAG at https://github.com/w3ctag/design-reviews/issues/927

 

TAG review status

Resolution: Satisfied

 

Risks

 

 

Interoperability and Compatibility

None

 

 

Gecko: Shipped/Shipping

 

WebKit: No signal (https://bugs.webkit.org/show_bug.cgi?id=257142)

 

Web developers: No direct signals, but this is part of the Interop2024 Accessibility focus area: https://wpt.fyi/results/?label=master&label=experimental&aligned&view=interop&q=label%3Ainterop-2024-accessibility

 

Other signals:

 

Ergonomics

None.

 

 

 

Activation

It isn't possible to polyfill the functionality of delivering the semantics to AT. However the properties can be set on browsers that don't support them yet without causing errors, so gradual adoption should be straightforward.

 

The property reflection behavior could be polyfilled if necessary.

 

 

 

Security

We do not anticipate any security impact from this feature.

 

 

 

WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications?

 

None

 

 

 

Debuggability

The property values can be observed in chrome://accessibility. 

 

Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?

Yes

 

Is this feature fully tested by web-platform-tests?

Yes

https://wpt.fyi/results/wai-aria/idlharness.window.html?label=master&label=experimental&aligned&view=interop&q=label%3Ainterop-2024-accessibility

https://wpt.fyi/results/html/dom/aria-attribute-reflection.html?label=master&label=experimental&aligned&view=interop&q=label%3Ainterop-2024-accessibility

https://wpt.fyi/results/custom-elements/ElementInternals-accessibility.html?label=master&label=experimental&aligned&view=interop&q=%2Fcustom-elements%2F

 

 

 

Flag name on chrome://flags

None

 

Finch feature name

AriaRowColIndexText

 

Requires code in //chrome?

False

 

Estimated milestones

Shipping on desktop 128

 

Anticipated spec changes

None

  

Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5182419585204224

 

This intent message was generated by Chrome Platform Status.

 

Vladimir Levin

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Jun 17, 2024, 4:05:23 PMJun 17
to Daniel Clark, blink-dev
LGTM1, thanks

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Yoav Weiss (@Shopify)

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Jun 18, 2024, 10:24:00 AMJun 18
to Vladimir Levin, Daniel Clark, blink-dev

Alex Russell

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Jun 19, 2024, 11:39:02 AMJun 19
to blink-dev, Yoav Weiss, dan...@microsoft.com, blink-dev, Vladimir Levin
LGTM3

LGTM1, thanks

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