Hammerspoon Config: 3 column + 2 row tiling, Apple Music control (stop/play, fwd/back, volume)

init.lua

-- window tiling for 3 col + 2 row

function tile(x_pos, y_pos)
    return function()
      local win = hs.window.focusedWindow()
      local f = win:frame()
      local screen = win:screen()
      local max = screen:frame()
      local new_width = max.w / 3
      local new_height = max.h / 2

      f.x = new_width * x_pos
      f.y = new_height * y_pos + (y_pos > 0 and 26 or 0)
      f.w = new_width
      f.h = new_height
      win:setFrame(f, 0)
    end
end

hs.hotkey.bind({"alt"}, "4", tile(0, 0))
hs.hotkey.bind({"alt"}, "5", tile(1, 0))
hs.hotkey.bind({"alt"}, "6", tile(2, 0))
hs.hotkey.bind({"alt"}, "1", tile(0, 1))
hs.hotkey.bind({"alt"}, "2", tile(1, 1))
hs.hotkey.bind({"alt"}, "3", tile(2, 1))


-- This manually toggles play/pause on Apple Music.app
function apple_music_playback()
    hs.application.launchOrFocus("Music")
    local aapl_music = hs.appfinder.appFromName("Music")

    local str_pause = {"Controls", "Pause"}
    local str_play_and_pause = {"Controls", "Play"}

    local pause = aapl_music:findMenuItem(str_pause)
    local play_and_pause = aapl_music:findMenuItem(str_play_and_pause)

    if (pause) then
        aapl_music:selectMenuItem(str_pause)
    end
    if (play_and_pause) then
        aapl_music:selectMenuItem(str_play_and_pause)
    end
end

hs.hotkey.bind({}, 'f8', apple_music_playback)

-- Volume Control in Apple Music.app
function apple_music_volume(direction)
    return function()
        hs.application.launchOrFocus("Music")
        local aapl_music = hs.appfinder.appFromName("Music")
        aapl_music:selectMenuItem({"Controls", direction})
    end
end

hs.hotkey.bind({"cmd", "ctrl"}, 'up', apple_music_volume("Increase Volume"))
hs.hotkey.bind({"cmd", "ctrl"}, 'down', apple_music_volume("Decrease Volume"))


-- Hotkey to jump to specific chrome work tabs
function jump_work_tab(name, title)
    return function()
        local script = ([[(function() {
      var browser = Application('%s');
      browser.activate();

      for (win of browser.windows()) {
        var tabIndex =
          win.tabs().findIndex(tab => tab.title().match(/%s/));

        if (tabIndex != -1) {
          win.activeTabIndex = (tabIndex + 1);
          win.index = 1;
        }
      }
    })();
  ]]):format(name, title)
        hs.osascript.javascript(script)

    end
end

hs.hotkey.bind({"cmd", "shift"}, "1", jump_work_tab("Chrome", "Mail"))
hs.hotkey.bind({"cmd", "shift"}, "2", jump_work_tab("Chrome", "Calendar"))
hs.hotkey.bind({"cmd", "shift"}, "3", jump_work_tab("Chrome", "Slack"))