class Chromium

# File lib/chromium.rb, line 6
def initialize(options = {})
  @tmp_dir  = options.fetch :tmp_dir, "/tmp/.chromium-#{SecureRandom.hex(6)}"
  @display  = options.fetch :display, 0
  @settings = options.fetch :settings, []

  window_size = `DISPLAY=:#{@display} $(which xdotool) getdisplaygeometry`.strip.gsub ' ', ','
  window_size = '7000,7000' unless window_size

  @pid = nil
  @settings = %W(
    --start-maximized
    --incognito
    --no-first-run
    --no-sandbox
    --disable
    --disable-java
    --disable-translate
    --disable-infobars
    --disable-suggestions-service
    --disable-save-password-bubble
    --allow-running-insecure-content
    --ignore-certificate-errors
    --ignore-urlfetcher-cert-requests
    --disable-gpu
    --new-window
    --force-device-scale-factor=1
    --window-position=0,0
    --auto-ssl-client-auth
    --use-fake-ui-for-media-stream
    --kiosk
    --window-size=#{window_size}
    --disk-cache-dir=#{@tmp_dir}/cache/
    --user-data-dir=#{@tmp_dir}/user_data/
  ) | @settings

  dispatch
end

# File lib/chromium.rb, line 44
def navigate_to(url)
  out_pipe, in_pipe = IO.pipe
  @pid = Process.spawn "DISPLAY=:#{@display} $(which chromium) #{@settings.join(' ')} #{url}", err: in_pipe
  raise Headless::Exception.new("Chromium did not launch - something's wrong") unless @pid
  Process.detach @pid
ensure
  in_pipe.close
end

# File lib/chromium.rb, line 59
def quit
  Process.kill 'TERM', @pid
  Process.wait @pid
  FileUtils.rm_rf @tmp_dir, force: true
rescue
  # no such process; assume it's already killed
end

# File lib/chromium.rb, line 53
def running?
  Process.getpgid(@pid) && true
rescue Errno::ESRCH
  false
end

# File lib/chromium.rb, line 69
def dispatch
  FileUtils.mkdir_p %W(#{@tmp_dir}/cache/ #{@tmp_dir}/user_data/), mode: 0777
end