Hammerspoon Config

init.lua

local alert = require "hs.alert"
local application = require "hs.application"
local fnutils = require "hs.fnutils"
local grid = require "hs.grid"
local hotkey = require "hs.hotkey"
local mjomatic = require "hs.mjomatic"
local window = require "hs.window"

grid.MARGINX = 0
grid.MARGINY = 0
grid.GRIDHEIGHT = 13
grid.GRIDWIDTH = 13

local mash = {"cmd", "alt", "ctrl"}
local mashshift = {"cmd", "alt", "ctrl", "shift"}


--
-- replace caffeine
--
local caffeine = hs.menubar.new()
function setCaffeineDisplay(state)
    local result
    if state then
        result = caffeine:setIcon("caffeine-on.pdf")
    else
        result = caffeine:setIcon("caffeine-off.pdf")
    end
end

function caffeineClicked()
    setCaffeineDisplay(hs.caffeinate.toggle("displayIdle"))
end

if caffeine then
    caffeine:setClickCallback(caffeineClicked)
    setCaffeineDisplay(hs.caffeinate.get("displayIdle"))
end

hs.hotkey.bind(mash, "/", function() caffeineClicked() end)
--
-- /replace caffeine
--


--
-- function to adjust window size
--
hs.window.animationDuration = 0
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
--
-- /function to adjust window size
--

--
-- toggle push window to edge and restore to screen
--

-- somewhere to store the original position of moved windows
local origWindowPos = {}

-- cleanup the original position when window restored or closed
local function cleanupWindowPos(_,_,_,id)
  origWindowPos[id] = nil
end

-- function to move a window to edge or back
local function movewin(direction)
  local win = hs.window.focusedWindow()
  local res = hs.screen.mainScreen():frame()
  local id = win:id()

  if not origWindowPos[id] then
    -- move the window to edge if no original position is stored in
    -- origWindowPos for this window id
    local f = win:frame()
    origWindowPos[id] = win:frame()

    -- add a watcher so we can clean the origWindowPos if window is closed
    local watcher = win:newWatcher(cleanupWindowPos, id)
    watcher:start({hs.uielement.watcher.elementDestroyed})

    if direction == "left" then f.x = (res.w - (res.w * 2)) + 10 end
    if direction == "right" then f.x = (res.w + res.w) - 10 end
    if direction == "down" then f.y = (res.h + res.h) - 10 end
    win:setFrame(f)
  else
    -- restore the window if there is a value for origWindowPos
    win:setFrame(origWindowPos[id])
    -- and clear the origWindowPos value
    cleanupWindowPos(_,_,_,id)
  end
end

hs.hotkey.bind(mash, "A", function() movewin("left") end)
hs.hotkey.bind(mash, "D", function() movewin("right") end)
hs.hotkey.bind(mash, "S", function() movewin("down") end)
--
-- /toggle push window to edge and restore to screen
--

-- --
-- -- Open Applications
-- --
-- local function openchrome()
--   application.launchOrFocus("Google Chrome")
-- end

-- local function openff()
--   application.launchOrFocus("FirefoxDeveloperEdition")
-- end

-- local function openmail()
--   application.launchOrFocus("Airmail")
-- end

-- hotkey.bind(mash, 'F', openff)
-- hotkey.bind(mash, 'C', openchrome)
-- hotkey.bind(mash, 'M', openmail)
-- --
-- -- /Open Applications
-- --


-- --
-- -- Window management
-- --
-- --Alter gridsize
-- hotkey.bind(mashshift, '=', function() grid.adjustHeight( 1) end)
-- hotkey.bind(mashshift, '-', function() grid.adjustHeight(-1) end)
-- hotkey.bind(mash, '=', function() grid.adjustWidth( 1) end)
-- hotkey.bind(mash, '-', function() grid.adjustWidth(-1) end)

--Resize windows to specific sizes
hotkey.bind(mash, "J", adjust(0, 0, 0.5, 1))       --1/2 left
hotkey.bind(mash, "U", adjust(0, 0, 0.5, 0.5))     --1/4 top left
hotkey.bind(mash, "I", adjust(0, 0, 1, 0.5))       --1/2 top
hotkey.bind(mash, "O", adjust(0.5, 0, 0.5, 0.5))   --1/4 top right
hotkey.bind(mash, "L", adjust(0.5, 0, 0.5, 1))     --1/2 right
hotkey.bind(mash, ".", adjust(0.5, 0.5, 0.5, 0.5)) --1/4 bottom right
hotkey.bind(mash, ",", adjust(0, 0.5, 1, 0.5))     --1/2 bottom
hotkey.bind(mash, "M", adjust(0, 0.5, 0.5, 0.5))   --1/4 bottom left
hotkey.bind(mash, "K", adjust(0, 0, 1, 1))         --full screen
hotkey.bind(mashshift, "K", adjust(0.25, 0.25, 0.5, 0.5))

--Snap windows
hotkey.bind(mash, ';', function() grid.snap(window.focusedWindow()) end)
hotkey.bind(mash, "'", function() fnutils.map(window.visibleWindows(), grid.snap) end)

-- hotkey.bind(mashshift, 'H', function() window.focusedWindow():focusWindowWest() end)
-- hotkey.bind(mashshift, 'L', function() window.focusedWindow():focusWindowEast() end)
-- hotkey.bind(mashshift, 'K', function() window.focusedWindow():focusWindowNorth() end)
-- hotkey.bind(mashshift, 'J', function() window.focusedWindow():focusWindowSouth() end)

--Move windows
hotkey.bind(mash, 'DOWN', grid.pushWindowDown)
hotkey.bind(mash, 'UP', grid.pushWindowUp)
hotkey.bind(mash, 'LEFT', grid.pushWindowLeft)
hotkey.bind(mash, 'RIGHT', grid.pushWindowRight)

--resize windows
hotkey.bind(mashshift, 'UP', grid.resizeWindowShorter)
hotkey.bind(mashshift, 'DOWN', grid.resizeWindowTaller)
hotkey.bind(mashshift, 'RIGHT', grid.resizeWindowWider)
hotkey.bind(mashshift, 'LEFT', grid.resizeWindowThinner)

hotkey.bind(mash, 'N', grid.pushWindowNextScreen)
hotkey.bind(mash, 'P', grid.pushWindowPrevScreen)

-- hotkey.bind(mashshift, 'M', grid.maximizeWindow)
-- --
-- -- /Window management
-- --


--
-- Screen resolution management
--
local function setres(direction)
    local screen = hs.screen.mainScreen()
    local modes = screen:availableModes()
    local currentMode = screen:currentMode()
    local currentKey = tonumber(currentMode.w .. '.' .. currentMode.h)

    alert.closeAll()

    local modes_rekeyed = {}
    for key, values in pairs(modes) do
        new_key = tonumber(values.w .. '.' .. values.h)
        modes_rekeyed[new_key] = values
    end

    local ordered_keys = {}
    for k in pairs(modes_rekeyed) do
        table.insert(ordered_keys, k)
    end
    table.sort(ordered_keys);
    local last = nil
    for i = 1, #ordered_keys do
        local k, v = ordered_keys[i], modes_rekeyed[ordered_keys[i]]
        if direction == 'up' and currentKey == last then
            screen:setMode(v.w, v.h, v.scale)
            alert.show(v.w .. ' x ' .. v.h)
            break
        elseif direction == 'down' and currentKey == k then
            v = modes_rekeyed[last]
            screen:setMode(v.w, v.h, v.scale)
            alert.show(v.w .. ' x ' .. v.h)
            break
        end
        last = k
    end
end

hotkey.bind(mash, "=", function() setres('up') end)
hotkey.bind(mash, "-", function() setres('down') end)
--
-- /Screen resolution management
--

--
-- Focus Follows Mouse
--
--hs.eventtap.event.types["mouseMoved"]
--hs.window:focus()
--
-- Focus Follows Mouse
--


--
-- Monitor and reload config when required
--
function reload_config(files)
  caffeine:delete()
  hs.reload()
end
hs.pathwatcher.new(os.getenv("HOME") .. "/.hammerspoon/", reload_config):start()
hs.alert.show("Config loaded")
--
-- /Monitor and reload config when required
--