hammerspoon init

init.lua

local mash = {
  split   = {"ctrl", "alt", "cmd"},
  corner  = {"ctrl", "alt", "shift"},
  focus   = {"ctrl", "alt"}
}

-- Resize windows
local function adjust(x, y, w, h)
  return function()
    local win = hs.window.focusedWindow()
    if not win then return end

    local f = win:frame()
    local max = win:screen():frame()

    f.w = math.floor(max.w * w)
    f.h = math.floor(max.h * h)
    f.x = math.floor((max.w * x) + max.x)
    f.y = math.floor((max.h * y) + max.y)

    win:setFrame(f)
  end
end

-- top half
hs.hotkey.bind(mash.split, "I", adjust(0, 0, 1, 0.5))

-- -- right half
hs.hotkey.bind(mash.split, "L", adjust(0.5, 0, 0.5, 1))

-- -- bottom half
hs.hotkey.bind(mash.split, "K", adjust(0, 0.5, 1, 0.5))

-- -- left half
hs.hotkey.bind(mash.split, "J", adjust(0, 0, 0.5, 1))

-- -- top left
hs.hotkey.bind(mash.corner, "I", adjust(0, 0, 0.5, 0.5))

-- -- top right
hs.hotkey.bind(mash.corner, "L", adjust(0.5, 0, 0.5, 0.5))

-- -- bottom right
hs.hotkey.bind(mash.corner, "K", adjust(0.5, 0.5, 0.5, 0.5))

-- -- bottom left
hs.hotkey.bind(mash.corner, "J", adjust(0, 0.5, 0.5, 0.5))

hs.hotkey.bind({"cmd", "alt", "ctrl"}, "R", function()
  hs.reload()
end)
hs.alert.show("Config loaded")

hs.hotkey.bind({"cmd", "alt", "ctrl"}, "M", function()
  local win = hs.window.focusedWindow()
  win:maximize()
end)

-- hs.hotkey.bind({"cmd", "alt", "ctrl"}, "Y", function()
--   hs.execute("open " .. "youtube.com")
-- end)

--Bring focus to next display/screen
hs.hotkey.bind({"alt"}, "`", function ()
  focusScreen(hs.window.focusedWindow():screen():next())
end)

-- hs.hotkey.bind({"alt", "shift"}, "I", function ()
--   focusScreen(hs.window.focusedWindow():screen():toNorth())
-- end)

-- hs.hotkey.bind({"alt", "shift"}, "K", function ()
--     focusScreen(hs.window.focusedWindow():screen():toSouth())
-- end)

-- hs.hotkey.bind({"alt", "shift"}, "J", function ()
--     focusScreen(hs.window.focusedWindow():screen():toWest())
-- end)

-- hs.hotkey.bind({"alt", "shift"}, "L", function ()
--     focusScreen(hs.window.focusedWindow():screen():toEast())
-- end)

--Bring focus to previous display/screen
hs.hotkey.bind({"alt", "shift"}, "`", function()
  focusScreen(hs.window.focusedWindow():screen():previous())
end)

--Predicate that checks if a window belongs to a screen
function isInScreen(screen, win)
  return win:screen() == screen
end

-- Brings focus to the screen by setting focus on the front-most application in it.
-- Also move the mouse cursor to the center of the screen. This is because
-- Mission Control gestures & keyboard shortcuts are anchored, oddly, on where the
-- mouse is focused.
function focusScreen(screen)
  --Get windows within screen, ordered from front to back.
  --If no windows exist, bring focus to desktop. Otherwise, set focus on
  --front-most application window.
  local windows = hs.fnutils.filter(
    hs.window.orderedWindows(),
    hs.fnutils.partial(isInScreen, screen))
  local windowToFocus = #windows > 0 and windows[1] or hs.window.desktop()
  windowToFocus:focus()

  -- Move mouse to center of screen
  local pt = geometry.rectMidPoint(screen:fullFrame())
  mouse.setAbsolutePosition(pt)
end

-- hs.hotkey.bind({"cmd"}, "J", function()
--   local app = hs.application.frontmostApplication()
--   if app:name() == "Mail" then
--     hs.eventtap.keyStroke({}, "down")
--   end
-- end)

hs.hotkey.bind({"cmd"}, "K", function()
  local app = hs.application.frontmostApplication()
  if app:name() == "Mail" then
    hs.eventtap.keyStroke({}, "up")
  end
end)

local function appl(appName)
  return function()
    hs.application.launchOrFocus(appName)
  end
end

hs.hotkey.bind(mash.focus, "H", appl("HipChat"))
hs.hotkey.bind(mash.focus, "C", appl("Google Chrome"))
hs.hotkey.bind(mash.focus, "I", appl("iTerm"))
hs.hotkey.bind(mash.focus, "M", appl("Mail"))

-- hs.hotkey.bind({"cmd", "alt", "ctrl"}, "H", function()
--   local win = hs.window.focusedWindow()
--   local f = win:frame()
--   local screen = win:screen()
--   local max = screen:frame()
--
--   f.x = max.x
--   f.y = max.y
--   f.w = max.w / 2
--   f.h = max.h
--   win:setFrame(f)
-- end)
--
-- hs.hotkey.bind({"cmd", "alt", "ctrl"}, "J", function()
--   local win = hs.window.focusedWindow()
--   local f = win:frame()
--   local screen = win:screen()
--   local max = screen:frame()
--
--   f.x = max.x
--   f.y = max.y + (max.h / 2)
--   f.w = max.w
--   f.h = max.h / 2
--   win:setFrame(f)
-- end)
--
-- hs.hotkey.bind({"cmd", "alt", "ctrl"}, "K", function()
--   local win = hs.window.focusedWindow()
--   local f = win:frame()
--   local screen = win:screen()
--   local max = screen:frame()
--
--   f.x = max.x
--   f.y = max.y
--   f.w = max.w
--   f.h = max.h / 2
--   win:setFrame(f)
-- end)
--
-- hs.hotkey.bind({"cmd", "alt", "ctrl"}, "L", function()
--   local win = hs.window.focusedWindow()
--   local f = win:frame()
--   local screen = win:screen()
--   local max = screen:frame()
--
--   f.x = max.x + (max.w / 2)
--   f.y = max.y
--   f.w = max.w / 2
--   f.h = max.h
--   win:setFrame(f)
-- end)
--
hs.hotkey.bind({"shift", "cmd", "alt", "ctrl"}, "J", function()
  local win = hs.window.focusedWindow()
  local nextScreen = win:screen():previous()
  win:moveToScreen(nextScreen)
end)

hs.hotkey.bind({"shift", "cmd", "alt", "ctrl"}, "L", function()
  local win = hs.window.focusedWindow()
  local nextScreen = win:screen():next()
  win:moveToScreen(nextScreen)
end)

hs.hotkey.bind({"shift", "cmd", "alt", "ctrl"}, "R", function()
  win:rotate(90)
end)