function to switch audio input

[d mg]

hi everybody, 

I wrote the  function below to switch the output audio device using the keyboard. 

It lists the devices and ask the user to chose one by index.

it does work, but I wonder if there a nicer user interface to ask information from the user.

is there a "better" way to ask the user for a string than using textPrompt?

thank for you any suggestions,

--daniel

function obj:select_output_audio_device(name)

   local name = 'unknown'

   local wlist = ''

   local prompt = 'Select number of the device to select'

   for i,v in ipairs(hs.audiodevice.allOutputDevices()) do

      wlist = wlist .. tostring(i) .. " " .. v:name() .. "\n"

   end

   local result,idx = hs.dialog.textPrompt(prompt, 

                                           wlist, 'default', 'ok', 'cancel')

   idx = tonumber(idx)

   if result == 'ok' and idx then

      dev = hs.audiodevice.allOutputDevices()[idx]

      if dev then

         name = hs.audiodevice.allOutputDevices()[idx]:name()

      end

      if not dev or not dev:setDefaultOutputDevice() then

         hs.alert.show("Unable to enable audio output device " .. name)

      else

         hs.alert.show("Audio output device is now: " .. name)

      end

   end

end

[Chris Jones]

I would use hs.chooser

Cheers,

--

Chris Jones

On 21 Jul 2021, at 23:13, d mg <dmge...@gmail.com> wrote:

hi everybody, 

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[dmg]

Thanks a lot for the suggestion. it is now muchhhh better:

local audiochoices = {}

for i,v in ipairs(hs.audiodevice.allOutputDevices()) do

table.insert(audiochoices, {text = v:name(), idx=i})
end

local audioChooser = hs.chooser.new(function(choice)
if not choice then hs.alert.show("Nothing chosen"); return end
obj:print_table0(choice)
local idx = choice["idx"]
local name = choice["text"]
dev = hs.audiodevice.allOutputDevices()[idx]
if not dev:setDefaultOutputDevice() then

hs.alert.show("Unable to enable audio output device " .. name)
else
hs.alert.show("Audio output device is now: " .. name)
end

end)

audioChooser:choices(audiochoices)
hs.hotkey.bind({"cmd", "alt"}, "A", function() audioChooser:show() end)

--
--dmg

---
D M German
http://turingmachine.org

[Bryan Banz]

Thanks for this DMG! I've been looking over the web for this for a while, then remembered I use Hammerspoon, I bet it can do what I want.. and your script worked great. I only received an error on the `obj:print_table0(choice)` line, which I think was just for debugging purposes. Quick comment that out and I was in business!