Power Status (was Re: Because LC can't do two things at once.)

[Mark Wieder]

Michael-

Friday, March 6, 2015, 1:33:14 PM, you wrote:

> Let hope this is the final.... kind makes me want to go get a linux 
> laptop.  ;-)

>           return
> caseSwitch(tStatus,"discharging=Battery","charging,unknown,full=AC","*=*")


Getting very close.
If you're going to prefix the functions with "__" then you need to do
it everywhere.

  return __caseSwitch(tStatus, ... etc

...and unfortunately BAT0 isn't a folder or a file... it's a symbolic
link, and LiveCode doesn't recognize it as an OS thing. Checking for
either a folder or a file will fail. What works for me is

      default
         -- Unix, thanks to Richard Gaskin, use-LC list
         constant kBatteryStatus0 = "/sys/class/power_supply/BAT0/status"
         constant kBatteryStatus1 = "/sys/class/power_supply/BAT0/status"
         if there is a file (kBatteryStatus0) then
            open file (kBatteryStatus0) for read
            read from file (kBatteryStatus0) until eof
            put it into tStatus
            close file  (kBatteryStatus0)
         else if there is a file (kBatteryStatus1) then
            open file (kBatteryStatus1) for read
            read from file (kBatteryStatus1) until eof
            put it into tStatus
            close file  (kBatteryStatus1)
         else
            return "AC"
            -- no battery, must be running off external power
         end if
         put word 1 of tStatus into tStatus
         if tStatus = empty then return empty
         return
__caseSwitch(tStatus,"discharging=Battery","charging,unknown,full=AC","*=*")
         -- if tStatus = empty, returns empty --
         --    Unix users please test: should this return some value??
         -- if tStatus is not in "discharging,charging,unknown,full" then
         --    just returns whatever "/sys/class/power_supply/BATx" reports
   end switch

-- 
-Mark Wieder
 ahsoftware at gmail.com

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