Contact emails
chrom...@keithcirkel.co.uk, lwar...@igalia.com

Explainer
https://open-ui.org/components/invokers.explainer


Specification
https://github.com/whatwg/html/pull/9841


Summary

Adding command and commandfor attributes to <button> elements would allow 
authors to assign behaviour to buttons in a more accessible and declarative 
way, while reducing bugs and simplifying the amount of JavaScript pages are 
required to ship for interactivity. Buttons with commandfor and command 
attributes will - when clicked, touched, or enacted via keypress - dispatch a 
CommandEvent on the element referenced by commandfor, with some default 
behaviours such as opening dialogs and popovers.



Blink component
Blink>DOM


TAG review
https://github.com/w3ctag/design-reviews/issues/920


TAG review status
Issues addressed


Risks




Interoperability and Compatibility

None


Gecko: Positive (https://github.com/mozilla/standards-positions/issues/902)

WebKit: Support (https://github.com/WebKit/standards-positions/issues/264)

Web developers: Positive 
(https://twitter.com/search?q=%22invoketarget%22&src=typed_query&f=top) 
Developers generally supportive.

Other signals:


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

None



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
Extensive Web Platform Tests available: 
https://wpt.fyi/results/html/semantics/the-button-element/command-and-commandfor



Flag name on about://flags
Experimental Web Platform Features


Finch feature name
HTMLCommandAttributes


Requires code in //chrome?
False


Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1490919


Estimated milestones


Shipping on desktop 135

DevTrial on desktop 120

Shipping on Android 135

DevTrial on Android 120

Shipping on WebView 135




Anticipated spec changes

Open questions about a feature may be a source of future web compat or interop 
issues. Please list open issues (eg links to known github issues in the project 
for the feature specification) whose resolution may introduce web 
compat/interop risk (eg, changing to naming or structure of the API in a 
non-backward-compatible way).
None


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5142517058371584?gate=5071846508855296


Links to previous Intent discussions
Intent to Prototype: 
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/54ade4d0-7495-4f4b-92b4-0b967687ef02%40app.fastmail.com



This intent message was generated by Chrome Platform Status.

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