Class: TTY::Terminal::Echo

Inherits:
Object
  • Object
show all
Defined in:
lib/tty/terminal/echo.rb

Overview

A class responsible for toggling echo.

Instance Method Summary collapse

Instance Method Details

#echo(is_on = true, &block) ⇒ Object

Wrap code block inside echo



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# File 'lib/tty/terminal/echo.rb', line 26

def echo(is_on=true, &block)
  value = nil
  begin
    self.off unless is_on
    value = block.call if block_given?
    self.on
    return value
  rescue NoMethodError, Interrupt
    self.on
    exit
  end
end

#off ⇒ Object

Turn echo off



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# File 'lib/tty/terminal/echo.rb', line 19

def off
  %x{stty -echo} if TTY::System.unix?
end

#on ⇒ Object

Turn echo on



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# File 'lib/tty/terminal/echo.rb', line 12

def on
  %x{stty echo} if TTY::System.unix?
end