class Chamomile::Stopwatch

Count-up stopwatch with start/stop/reset and tick-based updates.

Attributes

Public Class Methods

Source

# File lib/chamomile/components/stopwatch.rb, line 26
def initialize(interval: 1.0)
  @id = self.class.next_id
  @interval = interval
  @elapsed = 0.0
  @tag = 0
  @running = false
end

next_id ()

Source

# File lib/chamomile/components/stopwatch.rb, line 12
def self.next_id
  @id_mutex.synchronize do
    if Process.pid != @id_pid
      @id_pid = Process.pid
      @next_id = 0
      @id_mutex = Mutex.new
    end
    @next_id += 1
    "#{@id_pid}-sw-#{@next_id}"
  end
end

Public Instance Methods

handle (msg)

Source

# File lib/chamomile/components/stopwatch.rb, line 67
def handle(msg)
  return unless msg.is_a?(StopwatchTickMsg)
  return unless msg.id == @id && msg.tag == @tag

  @elapsed += @interval
  @tag += 1
  tick_cmd
end

Also aliased as: update

reset ()

Source

# File lib/chamomile/components/stopwatch.rb, line 56
def reset
  @elapsed = 0.0
  @running = false
  @tag += 1
  self
end

running? ()

Source

# File lib/chamomile/components/stopwatch.rb, line 63
def running?
  @running
end

start_cmd ()

Source

# File lib/chamomile/components/stopwatch.rb, line 34
def start_cmd
  return nil if @running

  @running = true
  tick_cmd
end

stop ()

Source

# File lib/chamomile/components/stopwatch.rb, line 41
def stop
  @running = false
  @tag += 1
  self
end

toggle ()

Source

# File lib/chamomile/components/stopwatch.rb, line 47
def toggle
  if @running
    stop
    nil
  else
    start_cmd
  end
end

update (msg)

Alias for: handle

view ()

Source

# File lib/chamomile/components/stopwatch.rb, line 78
def view
  total = @elapsed.ceil.to_i
  hours = total / 3600
  minutes = (total % 3600) / 60
  seconds = total % 60

  if hours.positive?
    format("%d:%02d:%02d", hours, minutes, seconds)
  else
    format("%02d:%02d", minutes, seconds)
  end
end