Class: Chromium

Inherits:
Object
  • Object
show all
Defined in:
lib/chromium.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Chromium

Returns a new instance of Chromium.



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# 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

Instance Attribute Details

#display ⇒ Object (readonly)

Returns the value of attribute display.



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# File 'lib/chromium.rb', line 4

def display
  @display
end

#pid ⇒ Object (readonly)

Returns the value of attribute pid.



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# File 'lib/chromium.rb', line 4

def pid
  @pid
end

#settings ⇒ Object (readonly)

Returns the value of attribute settings.



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# File 'lib/chromium.rb', line 4

def settings
  @settings
end

#tmp_dir ⇒ Object (readonly)

Returns the value of attribute tmp_dir.



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# File 'lib/chromium.rb', line 4

def tmp_dir
  @tmp_dir
end

Instance Method Details



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# 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

#quit ⇒ Object 



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# 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

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/chromium.rb', line 53

def running?
  Process.getpgid(@pid) && true
rescue Errno::ESRCH
  false
end