Module: Remedy::Console

Defined in:
lib/remedy/console.rb,
lib/remedy/console_resize.rb

Defined Under Namespace

Modules: Resize Classes: UnknownConsoleSize

Constant Summary collapse

TIOCGWINSZ = 
case RbConfig::CONFIG['host_os']
when /darwin|mac os/
  0x40087468
when /linux/
  0x5413
else
  0x00
end

Class Method Summary collapse

Class Method Details

.columns ⇒ Object Also known as: width 



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# File 'lib/remedy/console.rb', line 44

def columns
  size.cols
end

.cooked! ⇒ Object 



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# File 'lib/remedy/console.rb', line 39

def cooked!
  input.echo = true
  input.cooked!
end

.input ⇒ Object 



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# File 'lib/remedy/console.rb', line 18

def input
  @input ||= $stdin
end

.interactive? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/remedy/console.rb', line 63

def interactive?
  input.isatty
end

.output ⇒ Object 



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# File 'lib/remedy/console.rb', line 22

def output
  @output ||= $stdout
end

.raw ⇒ Object 



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# File 'lib/remedy/console.rb', line 26

def raw
  raw!
  result = yield
ensure
  cooked!
  return result
end

.raw! ⇒ Object 



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# File 'lib/remedy/console.rb', line 34

def raw!
  input.echo = false
  input.raw!
end

.rows ⇒ Object Also known as: height 



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# File 'lib/remedy/console.rb', line 49

def rows
  size.rows
end

.set_console_resized_hook! ⇒ Object 



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# File 'lib/remedy/console.rb', line 67

def set_console_resized_hook!
  Console::Resize.set_console_resized_hook! do |*args|
    yield *args
  end
end

.size ⇒ Object 



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# File 'lib/remedy/console.rb', line 54

def size
  str = [0, 0, 0, 0].pack('SSSS')
  if input.ioctl(TIOCGWINSZ, str) >= 0 then
    Size.new str.unpack('SSSS').first 2
  else
    raise UnknownConsoleSize, "Unable to get console size"
  end
end