No way to press enter in formspec without closing it

[technomancy]

In this form, I'd like to be able to press enter to trigger the on_receive_fields callback, but every time I press enter, it closes the form.

According to Zeno on the freenode channel, it should only close when button_exit is set, but this appears not to be checked here: https://github.com/minetest/minetest/blob/master/src/guiFormSpecMenu.cpp#L3038

[Zeno-]

I've labeled this as a bug (as well as feature request) because I think that, in essence and in my opinion, not having a way to bypass the enter key closing a formspec is undesirable behaviour

[technomancy]

For what it's worth, my long-term goal is to be able to implement a terminal in Minetest (a la computercraft's) but since that appears to be currently impossible the current engine, so I'm shooting for the next-best thing, line-oriented teletype interaction.

[4aiman]

I just show another formspec to a player in magichet.
I have to update some fields in the current formspec most of the time anyway.

But image_button work well for me - I sort inventory with it and it doesn't close anything.

[technomancy]

@4aiman Could you give me a link to the code where you just show another formspec to make it appear as if enter doesn't close the form? I've tried this in my own code and haven't been able to get it to work.

[4aiman]

@technomancy
There's no link to a code sample at the moment, but I can assure you that the following works:

1. Create a handler for on_recieve_fields()
2. minetest.show_formspec()
3. inside your handler (from the point 1) you should have something like:

if formname == 'bla-bla-bla' then
   if fields.button1 then
      minetest.show_formspec()
   end
end

In case you'll need more info: please, tell me what are you trying to do and if possible show your code that needs "fixing". I'll be able to help you. I won't demand anything from you in turn, so feel at ease about licensing or whatever distribution concerns you may have.

[technomancy]

@4aiman Thanks. What I've got is here: technomancy/calandria@84f3651

I call minetest.show_formspec(...) in on_receive_fields regardless of the value of formname or fields, but it does nothing. If I call the function with no arguments, it crashes the game with a ServerError.

[4aiman]

@technomancy
I've answered in a comment below your code ;)
technomancy/calandria@84f3651#commitcomment-11673753

Please, try the things I've described and tell other people here should you succeed.
(Or tell me in comments in your repo if you won't, so I will be able to help you.)

[technomancy]

Just to follow-up back here re: conversations held elsewhere, there are some workarounds for this, but none of them work for keyboard-initiated form callbacks, which is what I need.

Is there anything I could do to help get this fixed inside Minetest itself?

[tenplus1]

I wouldn't say this is a bug, more down to how the formspec/mod is written... Check out how nametags are done in mobs redo, you can hit enter and it works fine; https://github.com/tenplus1/mobs/blob/master/api.lua#L2662

[ShadowNinja]

#516

[paramat]

#516 was refused btw.

[Ferk]

I think the idea was to make a new formspec element for this, instead of changing the behavior of the current one. That's why it was refused.