Intent to Implement: Gamepad Touchpad

[steve....@sony.com]

Contact emails

steve....@sony.com aixi...@sony.com kelvi...@sony.com

Explainer

Explainer 

Spec

https://knyg.github.io/gamepad/extensions.html

Summary

The Gamepad specification includes a description of the buttons and axes expected to be present on a standard gamepad. The Gamepad specification will be extended to describe the touchpads available on some gamepads and to add a new API that supports basic touch inputs.

Motivation

Support for gamepads with touchpads enables game developers to create game experiences that are not currently possible with the existing API.  A limited level of support could be provided via extending gamepad buttons and axes, but this solution would create more of a burden on the application side.  Additionally, without a specification, browser implementations can diverge creating inconsistency which creates an even greater burden for the application. Providing a specific touchpad API will ease application implementation while providing greater functionality.

Risks

As this is a new feature, the main risk is lack of adoption. However, this risk is mitigated because touch based gestures are typically a progressive enhancement of the user experience.

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

Yes.

Link to entry on the feature dashboard

https://www.chromestatus.com/feature/4782975812108288

Requesting approval to ship?

No

[Joe Medley]

Steve,

Do you have a tracking bug for this?

Joe Medley | Technical Writer, Chrome DevRel | jme...@google.com | 816-678-7195

If an API's not documented it doesn't exist.

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[Navid Zolghadr]

Is the link to the explainer doc correct? I don't seem to be able to open it due to permission issues and whatnot.

Is the just of the proposal captured in GamepadTouch interface?

I was going to ask whether you have looked at the event based only method for this type of input instead of attaching to the polling use cases in the gamepad? How about just sending the actual touch events to the page or just create a new PointerEvent type for this type of input from Gamepad? I believe if you leverage the existing mechanisms you will get more sites working with these right off the bat without any need for further modification from the developers and at the end it is easier for developers to just say PointerEvents and get all the benefits.

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[Ian Kilpatrick]

Hi,

Please also file a TAG review issue at this time.

https://github.com/w3ctag/design-reviews/issues/

Thanks,

Ian 

To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAB8%3DuKZUxR9e%2BnvjynSix4RAC%2B49-Yb1KWn%3DNTF8TbPwfj9Cyw%40mail.gmail.com.

[william...@sony.com]

Updated the "Intent to Implement" to include a new contact and fixed the link to the Explainer document. I will be filing a TAG review issue shortly.

Contact emails

william...@sony.com steve....@sony.com aixi...@sony.com kelvi...@sony.com

[Joe Medley]

Can someone please add a tracking bug to the Chrome Status entry?

Thanks,

Joe

Joe Medley | Technical Writer, Chrome DevRel | jme...@google.com | 816-678-7195

If an API's not documented it doesn't exist.

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[Fernando Lerner Attia]

Implementation patch (test feature) for this feature has been uploaded and is under review: https://chromium-review.googlesource.com/c/chromium/src/+/1612050

Chrome status entry: 

https://www.chromestatus.com/feature/4782975812108288

thanks,

Fernando