Class: CivoCLI::Spinner

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

Constant Summary collapse

SPINNER_SHAPES = 
['|', '/', '-', '\\'].freeze
DELAY = 
0.1

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data = {}, &block) ⇒ Spinner

Returns a new instance of Spinner.



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# File 'lib/spinner.rb', line 12

def initialize(data = {}, &block)
  @quiet = data.delete(:quiet) || false
  @data = data
  @spinner_frame = 0
  @counter = 20
  @total = 3600 / DELAY
  @block = block
  spin
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name) ⇒ Object 



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# File 'lib/spinner.rb', line 22

def method_missing(name)
  @data[name] if @data.keys.include?(name)
end

Instance Attribute Details

#data ⇒ Object

Returns the value of attribute data.



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# File 'lib/spinner.rb', line 6

def data
  @data
end

Class Method Details

.spin(data = {}, &block) ⇒ Object 



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# File 'lib/spinner.rb', line 8

def self.spin(data = {}, &block)
  new(data, &block).spin
end

Instance Method Details

#[](key) ⇒ Object 



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# File 'lib/spinner.rb', line 26

def [](key)
  @data[key] if @data.keys.include?(key)
end

#[]=(key, value) ⇒ Object 



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# File 'lib/spinner.rb', line 30

def []=(key, value)
  @data[key] = value
end

#spin ⇒ Object 



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# File 'lib/spinner.rb', line 34

def spin
  print "\033[?25l" unless @quiet
  while(@total > 0) do
    sleep(DELAY)
    print SPINNER_SHAPES[@spinner_frame] + "\b" unless @quiet
    @spinner_frame += 1
    @spinner_frame = 0 if @spinner_frame == SPINNER_SHAPES.length
    @counter -= 1
    @total -= 1
    next unless @counter == 0

    @counter = 20
    if result = @block.call(self)
      self.data[:result] = result
      print "\033[?25h" unless @quiet
      return self
    end
  end

  print "\033[?25h" unless @quiet
rescue Interrupt
  print "\b\b" + "Exiting.\n"
  exit 1
ensure
  print "\033[?25h" unless @quiet
end