Rico's hammerspoon launcher config

launcher.lua

-- Rico's hammerspoon launcher config
--
-- usage:
-- * press `ctrl-cmd-w` to switch-or-launch Firefox
-- * update the shortcuts below to your liking
--
-- installation:
-- * save as ~/.hammerspoon/mods/launcher.lua
-- * add this to ~/.hammerspoon/init.lua: `require("mods.launcher").setup()`
--
-- ...alternatively just paste all these directly into init.lua (without the `return`) and run setup()

local MODS = { "ctrl", "cmd" }
local SHIFT_MODS = { "shift", "ctrl", "cmd" }

local LAUNCHER_APPS = {
  -- these keys are mostly on the left hand side (qwerty/colemak)
  { key = "v", app = "Visual Studio Code" }, -- "[v]scode"
  { key = "t", app = "Ghostty" }, -- "[t]erminal"
  { key = "w", app = "Firefox" }, -- "[w]eb"
  { key = "m", app = "Microsoft Outlook", label = "Outlook" }, -- "[m]ail"
  { key = "b", app = "Bruno" },
  { key = "s", app = "Slack" },
  { key = "z", app = "zoom.us" },
  { key = "f", app = "Finder" },
  { key = "p", app = "Spotify" }, -- [p]layer
  { key = "a", app = "Obsidian" },
}

local LAUNCHER_APPS_SHIFT = {
  { key = "w", app = "Google Chrome" }, -- "[w]eb"
}

local function activateApp(app)
  local win = hs.window.focusedWindow()
  if win and win:application():name() == app then
    -- If it's already focused, switch to next window
    hs.eventtap.keyStroke({ "cmd" }, "`")
  else
    -- Else, focus it
    hs.application.launchOrFocus(app)
  end
end

local function bindLauncherKeys(apps, options)
  for _, action in ipairs(apps) do
    local label = action.label or action.app
    hs.hotkey.bind(options.mods, action.key, label, function()
      if action.activate then
        action.activate()
      else
        activateApp(action.app)
      end
      if options.onactivate then
        options.onactivate()
      end
    end)
  end
end

local function setup()
  bindLauncherKeys(LAUNCHER_APPS, { mods = MODS })
  bindLauncherKeys(LAUNCHER_APPS_SHIFT, { mods = SHIFT_MODS })
end

return { setup = setup }