Add mouse support for tvOS

[kevincolten]

Extended mouse callback registration to tvOS 14.0+ in ControllerSupport.m and enabled GCSupportsMouseAndKeyboard in the Moonlight TV Info.plist. Updated Bluetooth usage descriptions to reference Bluetooth mice instead of Citrix X1 mice.

https://developer.apple.com/documentation/gamecontroller/gcmouse

[kevincolten]

@cgutman

[kevincolten]

@cgutman Any additional things needed to get this out?

[andygrundman]

I tested this out and it doesn't seem to work for me. I added some logging to see the GCMouse connection and disconnection events, and it registers all the callbacks, but after that I get no more events from the mouse. I tested using a Logitech MX Vertical bluetooth mouse. I haven't looked at the code or docs much for mouse support so I might be doing something wrong. Should I be getting a mouse cursor in tvOS? I can use the scroll wheel in the settings menu for example, but there is no cursor. I am running the latest tvOS 26 beta.

In addition, I can't find any docs relating to GCSupportsMouseAndKeyboard and this key is also unknown in Xcode (it usually replaces a known key with more descriptive text). Can you link me to some more info?

[bartleman]

I believe there is a controller profile for tracking mouse input (no icon on the screen) https://developer.apple.com/documentation/gamecontroller/gcmouseinput but I believe it's still in GCSupportsControllerUserInteraction. GCMouse.mouseInput I believe gives raw delta movement.

[Kevin-Medzorian]

@cgutman Any info on this? This PR would be really useful and is a very simple change…

@andygrundman I don't think there is supposed to be a visible cursor on tvOS. But since you are getting the scrolling to work, it seems like the mouse events are being registered.

Also I’m pretty sure “GCSupportsMouseAndKeyboard” isn’t necessary…

[yavin113]

Any updates on this? I am desperately waiting for this to be implemented

[enekodr]

Same question, are there any updates? I consider buying a Citrix mouse, but I wouldn't mind waiting for this