Add cancel to Update file

ID:2538458
 
Jan 19 2020, 12:30 pm
(See the best response by SpaceManiac.)
Code:
            UpdateServer()//Get your .dmb file ready and choose the file.
                set name = "Update Server"
                set category = "GM"
                var/mob/P = usr
                if(P) P << "Please open the PEntropia.dmb file,'DMB.png'"
                if(!P) return
                var/DMB = input("Please choose the DMB file",,"Cancel") as file
                if(DMB == "Cancel"){return}
                world <<"<b><center><B> Rebooting in 10 seconds." //Tells the world that were rebooting for an update.
                sleep(100) //wait 10 seconds before we reboot.
                fdel("PEntropia.dmb") //Delete your currunt .dmb
                fdel("PEntropia.rsc") //Delete your currunt .rsc
                world <<"<b><center><B>Rebooting Now." //Reboot.
                SaveWorld()
                fcopy(DMB,"PEntropia.dmb") //Copy the file over.
                world.Reboot() //Reboot.


Problem description:
Does anyone know a way to add a cancel button to the file screen in case I click this verb in-game accidentally? Thank you ^^
Jan 19 2020, 12:35 pm
Best response
Changing "as file" to "as file|null" will add a Cancel button to the dialog, which will set DMB to null when selected.
Jan 19 2020, 12:39 pm
sweet thanks! So I just have to set "Cancel" to null and I'm all set? tyvm ^^
Jan 19 2020, 12:39 pm
I mean in addition to what you said
Jan 21 2020, 2:12 am
In response to Kyubikitsune
Yes