Unable to support gamepad text input

[whiteboxdev]

I am trying to support Steam Deck full controller support. My game includes text inputs for entering emails, usernames, etc. When entering text with a controller, Steam requires you to open the overlay with an on-screen keyboard using one of these two functions:

• https://partner.steamgames.com/doc/api/ISteamUtils#ShowGamepadTextInput
• https://partner.steamgames.com/doc/api/ISteamUtils#ShowFloatingGamepadTextInput

When the text is submitted and the overlay closes, one of these two messages should be sent to the steamworks listener:

• https://partner.steamgames.com/doc/api/ISteamUtils#GamepadTextInputDismissed_t
• https://partner.steamgames.com/doc/api/ISteamUtils#FloatingGamepadTextInputDismissed_t

The current extension does not support ShowFloatingGamepadTextInput(), which is preferred nowadays over ShowGamepadTextInput(). More importantly though, the current extension does not send GamepadTextInputDismissed_t or FloatingGamepadTextInputDismissed_t to the steamworks listener.

Currently, entering text input with a gampad is unreliable and buggy at best. For example, there is no way to distinguish between the Submit or Cancel buttons because that information is accessed through the steamworks listener messages, which are not sent.