init.lua

hs.loadSpoon("Lunette")
spoon.Lunette:bindHotkeys()

--[[
- menubar items
- print(hs.inspect(...))
hs.alert.show(string.format("mode: %s x %s", mode.w, mode.h))
--]]

local function sendSystemKey(key)
  hs.eventtap.event.newSystemKeyEvent(key, true):post()
  hs.eventtap.event.newSystemKeyEvent(key, false):post()
end

local volume = {
  up = function() sendSystemKey("SOUND_UP") end,
  down = function() sendSystemKey("SOUND_DOWN") end,
  mute = function() sendSystemKey("MUTE") end
}
hs.hotkey.bind({}, "f10", volume.mute)
hs.hotkey.bind({}, "f11", volume.down, nil, volume.down)
hs.hotkey.bind({}, "f12", volume.up, nil, volume.up)

function setDockAutohide(enabled)
  ok = hs.osascript.applescript(
         [[tell application "System Events" to set the autohide of the dock]] ..
           [[ preferences to ]] .. tostring(enabled))
end

function autoSetDockAutohide()
  -- Disable dock auto-hide when a wide screen is attached.
  local maxWidth = 0
  for _, screen in ipairs(hs.screen.allScreens()) do
    local mode = screen:currentMode()
    maxWidth = math.max(maxWidth, mode.w)
  end
  setDockAutohide(maxWidth <= 1440)
end

autoSetDockAutohide()
local screenWatcher = hs.screen.watcher.newWithActiveScreen(autoSetDockAutohide)
screenWatcher:start()

-- Run every 60 seconds because we sometimes miss events.
hs.timer.new(60, autoSetDockAutohide):start()

--[[ Automatically set USB Audio Device as default audio device on init and on hot plug ]] --

USB_AUDIO_DEVICE = {
  productID = 20,
  productName = "USB Audio Device",
  vendorID = 3468,
  vendorName = "C-Media Electronics Inc."
}

function isUSBAudioDevice(device)
  return device.productID == USB_AUDIO_DEVICE.productID and device.vendorID ==
           USB_AUDIO_DEVICE.vendorID
end

function setDefaultAudioDevice(deviceName)
  local device = nil;
  device = hs.audiodevice.findInputByName(deviceName)
  if device ~= nil then device:setDefaultInputDevice() end
  device = hs.audiodevice.findOutputByName(deviceName)
  if device ~= nil then device:setDefaultOutputDevice() end
end

for _, device in pairs(hs.usb.attachedDevices()) do
  if isUSBAudioDevice(device) then setDefaultAudioDevice("USB Audio Device") end
end

local usbWatcher = hs.usb.watcher.new(function(data)
  if data.eventType == "added" and isUSBAudioDevice(data) then
    setDefaultAudioDevice("USB Audio Device")
  end
end)
usbWatcher:start()