Is there a way to tell if the player is currently chatting?

From some experimentation, I was able to make a script that would indicate if a player was typing in ROBLOX's CoreGui Chat. Due to the fact you can not receive the full hierarchy of the Chat Gui, I had to improvise with pcall. Pcall basically means protection call, it will run a function and return two values one being a bool to tell if it ran correctly or not, the other being a string that will report an error. That's why you may see local succ, err = pcall(function() end). I manipulated the script to indicate if a error would be given, if the function could not receive the hierarchy of the Gui object.

Without further ado, here is the script.

game:GetService('UserInputService').TextBoxFocused:connect(function(TextBox)
    local succ = pcall(function() TextBox:GetFullName() end)
    if not succ then print('User is typing.') end
end)

game:GetService('UserInputService').TextBoxFocusReleased:connect(function(TextBox)
    local succ = pcall(function() TextBox:GetFullName() end)
    if not succ then print('User quit typing.') end
end)

In the script, TextBoxFocused and TextBoxFocusReleased events provide a instance value, being the TextBox taking input. With utilization of the first value pcall provides, I was able to tell if the function was successful or not, getting the TextBox's hierarchy. So, if not successful then print user is typing, when a TextBox is being focused, and similar concept to TextBoxFocusReleased.

If you have any questions, feel free to comment below. If this answered your question, hit the accept answer button. If it just helped you, then press the upvote button.