From a1f616e01e1140ebed00fa68d27e05c2c5a9ee27 Mon Sep 17 00:00:00 2001
From: Jim Myhrberg <contact@jimeh.me>
Date: Mon, 23 Apr 2018 23:41:19 +0100
Subject: [PATCH] Toggle applications via global hotkeys in Hammerspoon

---
 hammerspoon/app_toggle.lua | 38 ++++++++++++++++++++++++++++++++++++++
 hammerspoon/init.lua       | 36 +++++++++++++++++++++++++++++-------
 2 files changed, 67 insertions(+), 7 deletions(-)
 create mode 100644 hammerspoon/app_toggle.lua

diff --git a/hammerspoon/app_toggle.lua b/hammerspoon/app_toggle.lua
new file mode 100644
index 0000000..d620172
--- /dev/null
+++ b/hammerspoon/app_toggle.lua
@@ -0,0 +1,38 @@
+-- luacheck: read_globals hs
+
+local obj = {}
+
+function obj:bind (mods, key, name, path)
+  hs.hotkey.bind(mods, key, self:toggleFn(name, path))
+end
+
+function obj:toggleFn (name, path)
+  return function ()
+    self:toggle(name, path)
+  end
+end
+
+function obj:toggle (name, path)
+  local app = self.findRunningApp(name, path)
+
+  if app == nil then
+    return hs.application.open(path or name)
+  end
+
+  if app == hs.application.frontmostApplication() then
+    return app:hide()
+  end
+
+  return app:activate()
+end
+
+function obj.findRunningApp (name, path)
+  for _, app in ipairs(hs.application.runningApplications()) do
+    if app:name() == name and (path == nil or path == app:path()) then
+      return app
+    end
+  end
+end
+
+-- the end
+return obj
diff --git a/hammerspoon/init.lua b/hammerspoon/init.lua
index 523a833..d2d46bc 100644
--- a/hammerspoon/init.lua
+++ b/hammerspoon/init.lua
@@ -15,12 +15,6 @@ hs.menuIcon(true)
 hs.console.alpha(0.90)
 hs.console.behaviorAsLabels { 'moveToActiveSpace' }
 
---------------------------------------------------------------------------------
--- Require modules
---------------------------------------------------------------------------------
-
-require('window_management'):init()
-
 --------------------------------------------------------------------------------
 -- Load Spoons
 --------------------------------------------------------------------------------
@@ -34,6 +28,34 @@ hs.loadSpoon('HeadphoneAutoPause')
 spoon.HeadphoneAutoPause.autoResume = false
 spoon.HeadphoneAutoPause:start()
 
+--------------------------------------------------------------------------------
+-- Application toggles
+--------------------------------------------------------------------------------
 
--- the end
+local apptoggle = require('app_toggle')
+
+apptoggle:bind({'cmd', 'alt', 'ctrl'}, 'A', 'Activity Monitor')
+apptoggle:bind({'cmd', 'ctrl'}, '4', 'Skitch')
+apptoggle:bind({'cmd', 'ctrl'}, 'A', 'YakYak')
+apptoggle:bind({'cmd', 'ctrl'}, 'B', 'Postico')
+apptoggle:bind({'cmd', 'ctrl'}, 'C', 'Medis')
+apptoggle:bind({'cmd', 'ctrl'}, 'D', 'Wavebox')
+apptoggle:bind({'cmd', 'ctrl'}, 'E', 'Emacs')
+apptoggle:bind({'cmd', 'ctrl'}, 'F', 'Messenger')
+apptoggle:bind({'cmd', 'ctrl'}, 'G', 'Stride')
+apptoggle:bind({'cmd', 'ctrl'}, 'S', 'Skype')
+apptoggle:bind({'cmd', 'ctrl'}, 'T', 'IRCCloud')
+apptoggle:bind({'cmd', 'ctrl'}, 'W', 'WhatsApp')
+apptoggle:bind({'cmd', 'ctrl'}, 'X', 'Calendar')
+apptoggle:bind({'cmd', 'ctrl'}, 'Z', 'Slack')
+
+--------------------------------------------------------------------------------
+-- Window management
+--------------------------------------------------------------------------------
+
+require('window_management'):init()
+
+--------------------------------------------------------------------------------
+-- The End
+--------------------------------------------------------------------------------
 hs.alert.show('Hammerspoon loaded')