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Contents
module TaliaUtil
# Mix-in for a class that wishes to use decoupled progress meters.
module Progressable
# This is the object that will receive the progress messages
def progressor
@progressor
end
# Set the progressor class. The progress class should simply respond to
# a #run_with_progress(message, size, &block) class
def progressor=(progr)
raise(ArgumentError, "Illegal progressor") unless((progr == nil) || progr.respond_to?(:run_with_progress))
@progressor = progr
end
# Runs some block with a progress meter. The containing block will be
# passed an object on which #inc can be called to increase the meter.
#
# If no progressor object is passed in manually, the one configured
# in the class is used
def run_with_progress(message, size, progr = nil, &block)
if(progr_object = (progr || progressor))
progr_object.run_with_progress(message, size, &block)
else
dummy_prog = Object.new
class << dummy_prog
def inc
end
end
block.call(dummy_prog)
end
end
end
end
Version data entries
27 entries across 27 versions & 1 rubygems