www.lua

-- www.lua: Hammerspoon snippet that takes a snapshot and uploads it to imagebin every time you hit "www".
-- 
-- Requirements:
-- * ffmpeg
-- * imagebin API key
--
-- This script is directly inspired by: http://portal.nifty.com/kiji/170321199097_1.htm
--
-- License: BSD-2-Clause (c) Akinori MUSHA
do
  -- git clone https://github.com/knu/hs-knu ~/.hammerspoon/knu
  local knu = require("knu")
  local guard = knu.runtime.guard
  local imagebin_key = "your_api_key"

  local function www()
    hs.alert.show("www")
    hs.execute([[
      . ~/.bash_profile
      set -e
      dir=$(mktemp -dt tmp)
      pic=$dir/pic.jpg
      ffmpeg -f avfoundation -video_size 1280x720 -framerate 30 -i 0 -vframes 1 "$pic" >/dev/null 2>&1
      url=$(curl -F key=]]..imagebin_key..[[ -F file="@$pic" https://imagebin.ca/upload.php | ruby -ne '$_.sub!(/^url:/, "") and print')
      rm -rf "$dir"
      open "$url"
    ]])
  end

  local w = hs.keycodes.map["w"]
  local count = 0

  guard(hs.eventtap.new(
      {hs.eventtap.event.types.keyDown},
      function (e)
        if e:getKeyCode() ~= w or
          hs.fnutils.some(e:getFlags(), function (b) return b end) then
          count = 0
          return false
        end
        count = count + 1
        if count >= 3 then
          count = 0
          hs.timer.doAfter(0.1, www)
        else
          hs.timer.doAfter(0.5, function ()
              count = math.max(count - 1, 0)
          end)
        end
        return false
  end)):start()
end