Class: Fusuma::Plugin::Inputs::PointingStickInput

Inherits:
Input
  • Object
show all
Defined in:
lib/fusuma/plugin/inputs/pointing_stick_input.rb

Overview

Read pointing stick events

Instance Method Summary collapse

Constructor Details

#initialize ⇒ PointingStickInput

Returns a new instance of PointingStickInput.



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# File 'lib/fusuma/plugin/inputs/pointing_stick_input.rb', line 20

def initialize
  super
  @device_name_pattern = config_params(:device_name_pattern)
end

Instance Method Details

#config_param_types ⇒ Object 



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# File 'lib/fusuma/plugin/inputs/pointing_stick_input.rb', line 14

def config_param_types
  {
    device_name_pattern: String
  }
end

#io ⇒ Object 



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# File 'lib/fusuma/plugin/inputs/pointing_stick_input.rb', line 25

def io
  @io ||= begin
    reader, writer = IO.pipe
    Thread.new do
      process_device_events(writer)
      writer.close
    end

    reader
  end
end

#process_device_events(writer) ⇒ Object 



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# File 'lib/fusuma/plugin/inputs/pointing_stick_input.rb', line 37

def process_device_events(writer)
  hidraw_device = find_hidraw_device(@device_name_pattern, wait: 3)
  hidraw_parser = select_hidraw_parser(hidraw_device.bustype)

  mouse_state = nil

  hidraw_parser.new(hidraw_device).parse do |new_state|
    next if mouse_state == new_state

    mouse_state = new_state
    writer.puts(mouse_state)
  end
rescue Errno::EIO => e
  MultiLogger.error "#{self.class.name}: #{e}"
  retry
end

#read_from_io ⇒ Object

Override Input#read_from_io



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# File 'lib/fusuma/plugin/inputs/pointing_stick_input.rb', line 55

def read_from_io
  status = io.readline(chomp: true)
  Events::Records::GestureRecord.new(gesture: "touch", status: status, finger: 1, delta: nil)
rescue EOFError => e
  MultiLogger.error "#{self.class.name}: #{e}"
  MultiLogger.error "Shutdown fusuma process..."
  Process.kill("TERM", Process.pid)
end