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Gamepad API Shim

This standardises the use of the Gamepad API across browsers where possible using a Flash fallback.

Browser Support

  • Internet Explorer: 9 or higher
  • Chrome/Opera: latest and previous stable
  • Konqueror: 4.11 or higher
  • Firefox: latest and previous stable, ESR

Other browsers may work, but they will not be supported.

Known Issues

Specification Conformance

  • Calling Object.prototype.toString on a Gamepad, GamepadButton or GamepadEvent button will return an incorrect value

  • new GamepadEvent().gamepad is implemented as a data property on the instance itself, not a getter on GamepadEvent.prototype.gamepad.

  • navigator.getGamepads returns a different object every time

  • If __proto__ and Object.setPrototypeOf are not supported:

    • constructor and toString will be own properties on the instance instead of the prototype
    • The prototype of GamepadEvent instances will be Event.prototype rather than a custom prototype object

Other Issues

  • Y axes are flipped (i.e. -1 is up, 1 is down), not sure if there is a way to fix this
  • Flash IDs do not match those given by native Gamepad API implementations