dock to docking station

dock

#!/usr/bin/env ruby

@enabled_outputs = ["eDP1", "DP1-1", "DP1-2", "DP1-3", "HDMI1", "HDMI2", "HDMI3", "VGA1"]
@max_enabled_outputs = 2
@position = '--right-of'

# A connected output looks like this 'HDMI1 connected[...]'
def get_connected_outputs(xrandr_output)
  outputs = []

  xrandr_output.each_line do |line|
    outputs.push line.split(' ')[0] if line.match(' connected')
  end
  
  return outputs
end

# An enabled output looks like this 'HDMI1 (dis)connected 1920x1080+0+0[...]'
def get_enabled_outputs(xrandr_output)
  outputs = []

  xrandr_output.each_line do |line|
    outputs.push line.split(' ')[0] if line.match(/connected (primary )?[0-9]/)
  end

  sorted_outputs = []
  for i in 0..(@enabled_outputs.size - 1)
    sorted_outputs.push(@enabled_outputs[i]) if outputs.include?(@enabled_outputs[i])
  end

  return sorted_outputs
end

def disable_output(name)
  `xrandr --output #{name} --off`
end

def enable_output(name)
  `xrandr --output #{name} --auto`
end

xrandr = `xrandr`

connected_outputs = get_connected_outputs(xrandr)
enabled_outputs = get_enabled_outputs(xrandr)

outputs_to_disable = Array.new(enabled_outputs)
outputs_to_enable = []

@enabled_outputs.each do |output|
  if outputs_to_enable.size < @max_enabled_outputs and connected_outputs.include?(output)
    outputs_to_enable.push output
    outputs_to_disable.delete output
  end
end

outputs_to_disable.map { |output| disable_output(output) }

outputs_to_enable -= enabled_outputs
outputs_to_enable.map { |output| enable_output(output) }

for i in 1..(enabled_outputs.size - 1)
  `xrandr --output #{enabled_outputs[i]} #{@position} #{enabled_outputs[i-1]}`
end

# set wallpaper
`sh ~/.fehbg`