Class: Lapidarius::Spinner

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

Constant Summary collapse

CHARS = 
%w[| / - \\]

Instance Method Summary collapse

Constructor Details

#initialize(io = STDOUT, fps = 15, delay = 1.0) ⇒ Spinner

Returns a new instance of Spinner.



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# File 'lib/lapidarius/cli.rb', line 68

def initialize(io = STDOUT, fps = 15, delay = 1.0)
  @io = io
  @fps = fps.to_i
  @delay = delay.to_f / @fps
  @iter = 0
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/lapidarius/cli.rb', line 75

def call
   = Thread.new do
    while @iter do
      @io.print CHARS[(@iter+=1) % CHARS.length]
      sleep @delay
      @io.print "\b"
      @io.flush
    end
  end
ensure
  yield.tap do
    @iter = false
    .join
  end
end