Implementing a single button menu

[thurse93]

Hi Forum!

For my recent project I need to implement a single button selection menu to switch between different states, like a lot of mp3 players used to have. It should work as follows:

-Pressing button -> menu appears which displays current item (= state)
-Pressing button again [multiple times] -> switch to the next [n'th] menu item
-Waiting for a fix amount of time (~ 1 sec)
-Executing a special shell script connected with the menu item
-Menu closes

My trigger is the button of an old gamepad connected via usb and supervised by joyd.

How could this be implemented? Is there even a chance to build a menu like this completely in shellscript (because this is the "language" im used to, i dont know python or C at all....)?

Regards,

thurse

[ghans]

What would BASH scripting be without external programs ?
zenity , dialog and whiptail come to mind.
You could have a look inot raspi-configs source code.


ghans

[thurse93]

Sure, a zenity or xdialog menu would be a nice and simple thing, but how can i control them with just one button?

[ghans]

Hmm ..
xdotool seems to be what you need.

ghans

[thurse93]

Thanks, xdotool was just the right thing. It's kind of a mess, because it involves 4 scripts an 3 temp-files but it works now...

Greetings,

thurse