Hammerspoon Config

hammerspoon.lua

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

ext = {}
ext.grid = {}

ext.grid.MARGINX = 5
ext.grid.MARGINY = 5
ext.grid.GRIDWIDTH = 3

local log = hs.logger.new('mymodule','debug')

local function round(num, idp)
  local mult = 10^(idp or 0)
  return math.floor(num * mult + 0.5) / mult
end

function ext.grid.get(win)
  local winframe = win:frame()
  local screenrect = win:screen():frame()
  local thirdscreenwidth = screenrect.w / ext.grid.GRIDWIDTH
  local halfscreenheight = screenrect.h / 2
  return {
    x = round((winframe.x - screenrect.x) / thirdscreenwidth),
    y = round((winframe.y - screenrect.y) / halfscreenheight),
    w = math.max(1, round(winframe.w / thirdscreenwidth)),
    h = math.max(1, round(winframe.h / halfscreenheight)),
  }
end

function ext.grid.set(win, grid, screen)
  local screenrect = win:screen():frame()
  local thirdscreenwidth = screenrect.w / ext.grid.GRIDWIDTH
  local halfscreenheight = screenrect.h / 2
  local newframe = {
    x = (grid.x * thirdscreenwidth) + screenrect.x,
    y = (grid.y * halfscreenheight) + screenrect.y,
    w = grid.w * thirdscreenwidth,
    h = grid.h * halfscreenheight,
  }

  newframe.x = newframe.x + ext.grid.MARGINX
  newframe.y = newframe.y + ext.grid.MARGINY
  newframe.w = newframe.w - (ext.grid.MARGINX * 2)
  newframe.h = newframe.h - (ext.grid.MARGINY * 2)

  win:setFrame(newframe)
end

function ext.grid.snap(win)
  if win:isstandard() then
    ext.grid.set(win, ext.grid.get(win), win:screen())
  end
end

function ext.grid.adjustwidth(by)
  ext.grid.GRIDWIDTH = math.max(1, ext.grid.GRIDWIDTH + by)
  hydra.alert("grid is now " .. tostring(ext.grid.GRIDWIDTH) .. " tiles wide", 1)
  fnutils.map(hs.window.visiblewindows(), ext.grid.snap)
end

function ext.grid.adjust_focused_window(fn)
  local win = hs.window.focusedWindow()
  local f = ext.grid.get(win)
  fn(f)
  ext.grid.set(win, f, win:screen())
end

function ext.grid.maximize_window()
  local win = hs.window.focusedwindow()
  local f = {x = 0, y = 0, w = ext.grid.GRIDWIDTH, h = 2}
  ext.grid.set(win, f, win:screen())
end

function ext.grid.pushwindow_nextscreen()
  local win = hs.window.focusedwindow()
  ext.grid.set(win, ext.grid.get(win), win:screen():next())
end

function ext.grid.pushwindow_prevscreen()
  local win = hs.window.focusedwindow()
  ext.grid.set(win, ext.grid.get(win), win:screen():previous())
end

function ext.grid.pushwindow_left()
  ext.grid.adjust_focused_window(function(f) f.x = math.max(f.x - 1, 0) end)
end

function ext.grid.pushwindow_right()
  ext.grid.adjust_focused_window(function(f) f.x = math.min(f.x + 1, ext.grid.GRIDWIDTH - f.w) end)
end

function ext.grid.resizewindow_wider()
  ext.grid.adjust_focused_window(function(f) f.w = math.min(f.w + 1, ext.grid.GRIDWIDTH - f.x) end)
end

function ext.grid.resizewindow_thinner()
  ext.grid.adjust_focused_window(function(f) f.w = math.max(f.w - 1, 1) end)
end

function ext.grid.pushwindow_down()
  ext.grid.adjust_focused_window(function(f) f.y = 1; f.h = 1 end)
end

function ext.grid.pushwindow_up()
  ext.grid.adjust_focused_window(function(f) f.y = 0; f.h = 1 end)
end

function ext.grid.resizewindow_taller()
  ext.grid.adjust_focused_window(function(f) f.y = 0; f.h = 2 end)
end

hs.hotkey.bind(mash, ';', function() ext.grid.snap(window.focusedwindow()) end)
hs.hotkey.bind(mash, "/", function() fnutils.map(window.visiblewindows(), ext.grid.snap) end)

hs.hotkey.bind(mash, '=', function() ext.grid.adjustwidth( 1) end)
hs.hotkey.bind(mash, '-', function() ext.grid.adjustwidth(-1) end)

hs.hotkey.bind(mashshift, 'H', function() window.focusedwindow():focuswindow_west() end)
hs.hotkey.bind(mashshift, 'L', function() window.focusedwindow():focuswindow_east() end)
hs.hotkey.bind(mashshift, 'K', function() window.focusedwindow():focuswindow_north() end)
hs.hotkey.bind(mashshift, 'J', function() window.focusedwindow():focuswindow_south() end)

hs.hotkey.bind(mash, 'M', ext.grid.maximize_window)

hs.hotkey.bind(mash, 'N', ext.grid.pushwindow_nextscreen)
hs.hotkey.bind(mash, 'P', ext.grid.pushwindow_prevscreen)

hs.hotkey.bind(mash, 'J', ext.grid.pushwindow_down)
hs.hotkey.bind(mash, 'K', ext.grid.pushwindow_up)
hs.hotkey.bind(mash, 'H', ext.grid.pushwindow_left)
hs.hotkey.bind(mash, 'L', ext.grid.pushwindow_right)

hs.hotkey.bind(mash, 'U', ext.grid.resizewindow_taller)
hs.hotkey.bind(mash, 'O', ext.grid.resizewindow_wider)
hs.hotkey.bind(mash, 'I', ext.grid.resizewindow_thinner)