// Base class for anything that can show up on home screen
/datum/data/pda
	var/icon = "tasks"
	var/hidden = 0				// program not displayed in main menu
	var/category = "General"	// the category to list it in on the main menu
	var/obj/item/device/pda/pda	// if this is null, and the app is running code, something's gone wrong

/datum/data/pda/Destroy()
	pda = null
	return ..()

/datum/data/pda/proc/start()


// An app has a button on the home screen and its own UI
/datum/data/pda/app
	name = "App"
	size = 3
	var/title = null	// what is displayed in the title bar when this is the current app
	var/template = ""
	var/update = PDA_APP_UPDATE
	var/has_back = 0

/datum/data/pda/app/New()
	if(!title)
		title = name

/datum/data/pda/app/start()
	pda.current_app = src
	return 1

/datum/data/pda/app/proc/update_ui(mob/user as mob, list/data)


// Utilities just have a button on the home screen, but custom code when clicked
/datum/data/pda/utility
	name = "Utility"
	icon = "gear"
	size = 1
	category = "Utilities"


/datum/data/pda/utility/scanmode
	var/base_name
	category = "Scanners"

/datum/data/pda/utility/scanmode/New(obj/item/weapon/cartridge/C)
	..(C)
	name = "Enable [base_name]"

/datum/data/pda/utility/scanmode/start()
	if(pda.scanmode)
		pda.scanmode.name = "Enable [pda.scanmode.base_name]"

	if(pda.scanmode == src)
		pda.scanmode = null
	else
		pda.scanmode = src
		name = "Disable [base_name]"

	pda.update_shortcuts()
	return 1

/datum/data/pda/utility/scanmode/proc/scan_mob(mob/living/C as mob, mob/living/user as mob)

/datum/data/pda/utility/scanmode/proc/scan_atom(atom/A as mob|obj|turf|area, mob/user as mob)