M291 issued from a plugin doesn't show anything on the PanelDue

Ant1

I am creating a plugin which intercepts a certain M-code (M1000 in my case), and then performs a bunch of things with the machine. At some point, it needs to open a message box using M291. It does so using CommandConnection.perform_simple_code('M291 ...').

Depending on how the plugin is called, the message box doesn't get showed on the PanelDue. Here is what I have observed:

When I call M1000 from the command console on the PanelDue, which triggers the plugin, the message box is shown, as expected.
If M1000 is wrapped in a macro, which is ran from the PanelDue, the plugin is triggered, but the message box isn't shown on the PanelDue - only in the web interface.

Expected:
M291 should open the message box on the PanelDue in all cases, otherwise it is annoying because I need to open a web interface to run this macro.

Ant1

@Ant1 As a note, this issue happens with DSF 3.5.2. I tried to reproduce it with DSF 3.5.1, but the issue doesn't happen and the message gets shown properly on the PanelDue, so I think that the issue comes from the update.

chrishamm

@Ant1 Please share the code which intercepts M1000 and calls M291. Does M409 K"state" F"d99fn" show a proper messageBox value when it is not displayed on PanelDue?

Ant1

@chrishamm Sorry for the later reply on this, I forgot about it and got no notifications!

Here is a minimal setup that reproduces my issue. In this setup, I use a separate connection to intercept and to send commands. If I use a single intercept connection, the issue still happens, but less often.

Also, note that the message box shows up on the PanelDue in about 50% of the cases when sending M2000. But in the the other cases, the message box only pops up in the web interface. I didn't manage to see if it was correlated to something else, as it seemed pretty random to me.

#!/usr/bin/python3
from dsf.connections import InterceptConnection, InterceptionMode, CommandConnection
from dsf.object_model.messages import MessageType


if __name__ == "__main__":
    try:
        intercept = InterceptConnection(InterceptionMode.PRE, filters=['M2000'])
        command = CommandConnection()
        command.connect()
        intercept.connect()

        while True:
            code = intercept.receive_code()
            try:
                if code.short_str() == 'M2000':
                    command.perform_simple_code('M291 S2 P"Test" X1 Y1 Z1')
                    print(command.perform_simple_code('M409 K"state" F"d99fn"'))
                    intercept.resolve_code(MessageType.Success)
            except Exception as e:
                intercept.resolve_code(MessageType.Error, str(e))
    finally:
        intercept.close()
        command.close()

The output of M409 K"state" F"d99fn" is the following:

{"key":"state","flags":"d99fn","result":{"currentTool":2,"gpOut":[],"laserPwm":null,"msUpTime":646,"status":"idle","time":"2024-10-14T11:27:13","upTime":2238}}

I don't see any messageBox value inside it.