GamePad multitouch extension

Category: Device
Type: New or changed feature
Status: In developer trial (Behind a flag) (Chrome In developer trial (Behind a flag))
Intent stage: Start prototyping

Summary

Extend the Gamepad API to support multitouch surfaces (touchpads). Providing a touchpad API eases application implementation and provides greater functionality browser interoperability.

Motivation

Gamepad Multitouch Extension Provide access to the touch interface available on modern gamepads by allowing developers to receive touch events generated by the gamepad. Modern gamepads support touch functionality, e.g. Sony DualSense®5, Steam deck and Steam Controllers, and Sony DualShock®4. The Standard Gamepad specification should be updated to include touchpad functionality, and the Gamepad API should be extended so that users with touch-enabled gamepads can use touch inputs on the web.

Standards & signals

Specification: https://w3c.github.io/gamepad/extensions.html#gamepadtouch-interface
Firefox: No signal
Safari: No signal — No position yet, but noted concerns on integration, maintenance, and privacy.
Web developers: No signals
Tracking bug: https://crbug.com/1143942

Explainers: https://github.com/bradleyneedham/gamepad/blob/multitouch-explainer/multitouch_explainer.md

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