Because LC can't do two things at once.

[Peter M. Brigham]

Just closing the loop on this one (the power source of a laptop). (Calling Richard Gaskin re the Linux case...)

-- Peter

Peter M. Brigham
pmbrig at gmail.com
http://home.comcast.net/~pmbrig

---------

function getPowerSource
   -- returns the current power source for a laptop
   --    "AC" or "Battery"
   -- requires caseSwitch()
   switch the platform
      case "MacOS"
         -- thanks to Martin Koob, use-LC list
         put shell ("pmset -g batt") into tSource
         -- returns something like:
         --    Currently drawing from 'AC Power'
         --     -InternalBattery-0	99%; finishing charge; 0:00 remaining
         return char 2 to -1 of word -2 of line 1 of tSource
         break
      case "Win32"
         -- thanks to Bob Sneidar, use-LC list
         -- someone with a Windows machine should test this case
         put shell("WMIC Path Win32_Battery GetAvailability") into tSource
         -- Line 3 will contain 2 if the battery is charging, 3 if running on battery
         put line 3 of tSource into tStatus
         return caseSwitch(tStatus,"3=Battery","*=AC")
         break
      default
         -- Linux awaiting Richard Gaskin...
   end switch
end getPowerSource

function caseSwitch
   -- does a quick inline switch/case
   -- param 1 is checkValue
   -- params 2+ are in the form matchValue(s)>=<returnValue
   --    separate multiple matcheValues with commas
   --    and enclose each matchValue=returnValue pair in quotes
   -- if checkValue matches one or more items in matchValue(s),
   --    returns returnValue
   -- note that checkValue should NOT be enclosed in quotes
   -- use a matchValue of "*" to specify a default value,
   --    to be returned if no matches found in the list
   --    if the default is "*=*" then no match returns the original <checkValue>
   --    if no match and no default value specified, then returns empty
   -- usage:
   --    put caseSwitch(len(tZip),"5=zip","10=zip+4","*=not a zip code") \
      --             into zipCodeType
   -- from Ken Ray, use-LC list, originally named stsSwitch()
   
   put param(1) into tCheckValue
   set the itemDel to "="
   put "" into tDefault
   repeat with x = 2 to the paramCount
      put param(x) into tCheck
      put item 1 of tCheck into tMatch
      put item 2 of tCheck into tRetVal
      replace "," with "=" in tMatch
      if tCheckValue is among the items of tMatch then return tRetVal
      if tMatch = "*" then
         if tRetVal = "*" then
            put tCheckValue into tDefault
         else
            put tRetVal into tDefault
         end if
      end if
   end repeat
   return tDefault
end caseSwitch

----------

On Feb 21, 2015, at 2:59 AM, Richard Gaskin wrote:

> Peter M. Brigham wrote:
> 
>> Just out of curiosity, how *would* you do this via shell call or
>> the equivalent on a Windows laptop?
> 
> Good question.
> 
> Thanks to the beautiful simplicity of the Linux /proc directory I was able to find:
> 
>  cat /proc/acpi/battery/BAT1/state
> 
> The "charging state" field there will contain "charging" or "discharging".
> 
> Now if we can turn up a Win command line solution I'll write a handler for this that'll make it convenient to get this info on all three platforms.
> 
> Martin, thanks for handling the Mac side - nice work.
> 
> 
>> On Feb 20, 2015, at 11:19 AM, Martin Koob wrote:
>> 
>>> Hi Richard
>>> 
>>> I noticed in your bug report was for Mac so till that enhancement gets
>>> implemented you could use this.
>>> 
>>> function powerStatus
>>>  put shell ("pmset -g batt") into tPowerStatus
>>>  put matchtext(tPowerStatus, "'([^']*)",tPowerSource) into tSuccess
>>>  return tPowerSource
>>> end powerStatus
> 
> 
> 
> -- 
> Richard Gaskin
> Fourth World Systems
> Software Design and Development for Desktop, Mobile, and Web
> ____________________________________________________________
> Ambassador at FourthWorld.com        http://www.FourthWorld.com
> 
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