Intent to Ship: Gamepad ongamepadconnected and ongamepaddisconnected event handler attributes

[Chromestatus]

Contact emails

or...@igalia.com

Specification

https://w3c.github.io/gamepad/#extensions-to-the-windoweventhandlers-interface-mixin

Summary

Add ongamepadconnected and ongamepaddisconnected event handlers to the WindowEventHandlers interface mixin. This would enable support for window.ongamepad[dis]connected or document.body.ongamepad[dis]connected event handler attributes.

Blink component

Blink>GamepadAPI

Web Feature ID

gamepad

Motivation

The gamepad[dis]connected events can be subscribed to using window.addEventListener() currently. This adds the ability to use window.ongamepad[dis]connected event handler attributes as well.

Initial public proposal

No information provided

TAG review

No information provided

TAG review status

Not applicable

Risks

Interoperability and Compatibility

No information provided

Gecko: Shipped/Shipping (https://bugzilla.mozilla.org/show_bug.cgi?id=1697093)

WebKit: Shipped/Shipping (https://bugs.webkit.org/show_bug.cgi?id=223860)

Web developers: No signals

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?

No information provided

Debuggability

No information provided

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

No

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

Yes
The wpt test below checks for the presence of the event handler IDL attributes: https://wpt.fyi/results/gamepad/idlharness.window.html?label=experimental&label=master&aligned

Flag name on about://flags

No information provided

Finch feature name

No information provided

Non-finch justification

This feature just adds another way of exposing gamepad connection/disconnection information as per spec.

Rollout plan

Will ship enabled for all users

Requires code in //chrome?

False

Tracking bug

https://issues.chromium.org/issues/40175074

Estimated milestones

No milestones specified

Anticipated spec changes

Open questions about a feature may be a source of future web compat or interop issues. Please list open issues (e.g. links to known github issues in the project for the feature specification) whose resolution may introduce web compat/interop risk (e.g., changing to naming or structure of the API in a non-backward-compatible way).

No information provided

Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5109540852989952?gate=6264903576977408

Links to previous Intent discussions

Intent to Prototype: https://groups.google.com/a/chromium.org/d/msgid/blink-dev/68d72b07.050a0220.1ba43a.0097.GAE%40google.com

This intent message was generated by Chrome Platform Status.

[Alex Russell]

LGTM1

[Rick Byers]

LGTM2

Would be nice to have testdriver.js automation for this (instead of just that the attribute exists), but seems small enough that I'm OK not blocking on this.

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[Vladimir Levin]

LGTM3

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[Philip Jägenstedt]

These are just event handler attributes, but for larger Gamepad API changes it would indeed to be nice to consider device mocking for testing. I think something like this for Bluetooth might be a pattern to follow:

https://github.com/web-platform-tests/wpt/blob/master/infrastructure/testdriver/bidi/bluetooth/simulate_adapter.https.html

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[Orko Garai]

Sorry one clarification: This should be supported on all platforms.