hammerspoon-simple-tilling.lua

local timer=require'hs.timer'
local checkMods=require'hs.eventtap'.checkKeyboardModifiers
local function modsPressed() return checkMods(true)._raw>0 end

local frontWindows = {}
local frontFocusIdx = 0
local modes = {
  full = { 1 },
  half = { 0.5, 0.5 },
  third = { 0.34, 0.33, 0.33 },
}

local winIndex = 0
local windowList = nil

local timerHandle = nil

function stopTimer()
  if timerHandle == nil then
    return
  end
  timerHandle:stop()
  timerHandle = nil
end

function hasValue(tab, val)
  for index, value in pairs(tab) do
    if value == val then
      return true
    end
  end
  return false
end

function renderFront(mode)
  stopTimer()
  local count = #mode
  local filter = hs.window.filter.new():setDefaultFilter{}
  local allWindows = filter:getWindows(hs.window.filter.sortByFocusedLast)
  if #allWindows < 1 then
    return
  end
  local screen = allWindows[1]:screen()
  local max = screen:frame()

  frontWindows = {}
  frontFocusIdx = 0
  local preSum = 0
  for idx, win in pairs(allWindows) do
    table.insert(frontWindows, win)
    local f = win:frame()
    f.x = max.x + preSum
    f.y = max.y
    f.w = max.w * mode[idx]
    f.h = max.h
    preSum = preSum + f.w
    win:setFrame(f)
    if idx == #mode then
      break
    end
  end
end

function focus(dir)
  local win = windowList[winIndex + 1]
  win:setFrame(frontWindows[frontFocusIdx + 1]:frame())
  win:focus()
  frontWindows[frontFocusIdx + 1] = win
  winIndex = (winIndex + dir + #windowList) % #windowList
end

function buildFocus(appName, title)
  return function()
    local filter = hs.window.filter.new(false):setAppFilter(appName,{allowTitles=title})
    local windows = filter:getWindows()
    if #windows == 0 then
      return
    end
    windows[1]:focus()
    windows[1]:setFrame(frontWindows[frontFocusIdx + 1]:frame())
    frontWindows[frontFocusIdx + 1] = windows[1]
  end
end

function buildSwitcher(dir)
  return function()
    if timerHandle ~= nil then
      focus(dir)
      return
    end
  
    local filter = hs.window.filter.new():setDefaultFilter{}
    local allWindows = filter:getWindows(hs.window.filter.sortByFocusedLast)
  
    local currentWin = hs.window.focusedWindow()
    windowList = {}
    table.insert(windowList, currentWin)
    for idx, win in pairs(allWindows) do
      if not hasValue(frontWindows, win) then
        table.insert(windowList, win)
      end
    end
    winIndex = 1
    focus(dir)
    timerHandle = timer.waitWhile(modsPressed, stopTimer, 0.25)
  end
end

function buildFrontSwitcher(dir)
  return function()
    if #frontWindows == 0 then
      return
    end
    stopTimer()
    frontFocusIdx = (frontFocusIdx + dir + #frontWindows) % #frontWindows
    frontWindows[frontFocusIdx + 1]:focus()
  end
end

function buildSwitchFront(dir)
  return function()
    if #frontWindows < 2 then
      return
    end
    stopTimer()
    local aIdx = frontFocusIdx
    frontFocusIdx = (frontFocusIdx + dir + #frontWindows) % #frontWindows
    local bIdx = frontFocusIdx

    local aFrame = frontWindows[aIdx + 1]:frame()
    local bFrame = frontWindows[bIdx + 1]:frame()
    frontWindows[aIdx + 1]:setFrame(bFrame)
    frontWindows[bIdx + 1]:setFrame(aFrame)

    local tmp = frontWindows[aIdx + 1]
    frontWindows[aIdx + 1] = frontWindows[bIdx + 1]
    frontWindows[bIdx + 1] = tmp


    frontWindows[aIdx + 1]:focus() -- bring render attention
    frontWindows[bIdx + 1]:focus()
  end
end

return function (mash, shiftMash)
  hs.hotkey.bind(mash, "f", "Full Screen Mode", function()
    renderFront(modes.full)
  end)
  hs.hotkey.bind(mash, "d", "Half Screen Mode", function()
    renderFront(modes.half)
  end)
  hs.hotkey.bind(mash, "s", "1/3 Screen Mode", function()
    renderFront(modes.third)
  end)
  hs.hotkey.bind(mash, "j", "Next Window", buildSwitcher(1))
  hs.hotkey.bind(mash, "k", "Previous Window", buildSwitcher(-1))
  hs.hotkey.bind(mash, "h", "Focus Left", buildFrontSwitcher(-1))
  hs.hotkey.bind(mash, "l", "Focus Right", buildFrontSwitcher(1))
  hs.hotkey.bind(shiftMash, "h", "Move Left", buildSwitchFront(-1))
  hs.hotkey.bind(shiftMash, "l", "Move Right", buildSwitchFront(1))

  hs.hotkey.bind(mash, "t", "Tubi Chrome", buildFocus("Google Chrome", "(@tubi)"))
  hs.hotkey.bind(mash, "c", "Personal Chrome", buildFocus("Google Chrome", "(winguse)"))
end