Trigger fullscreen from Gamepad on HTML5?

Is this possible, or can FS only be triggered by mouse, keyboard or touch events? I’m not even sure if Gamepads trigger events so this might be a dumb question.

In HTML5 the gamepad connect/disconnect are events (and probably not considered user events) but the rest of the data is done only by polling – so I don’t think it is possible (unfortunately) but it may be worth experimenting

Looks like this is the case, I couldn’t find any kind of gamepad button event in JS.

For those interested, this is the solution I used in my gamepad menu:

Additionally, I might auto-fullscreen on the first click to set focus to the game. Although people may not like that.