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Contents
module Vedeu
# Classes within the Output namespace handle various aspects of
# rendering content.
#
module Output
# Sends the output to the renderers.
#
class Output
# Writes output to the defined renderers.
#
# @return [Array|NilClass|String]
# @see #initialize
def self.render_output(output)
return nil if output.nil?
new(output).render_output
end
# Return a new instance of Vedeu::Output::Output.
#
# @param output [Array<Array<Vedeu::Views::Char>>]
# @return [Vedeu::Output::Output]
def initialize(output)
@output = output
end
# Send the view to the renderers. If the output is a
# {Vedeu::Models::Escape} object (typical when showing or
# hiding the cursor) then we bypass the
# {Vedeu::Terminal::Buffer} and write directly to the terminal
# because escape sequences only make sense to the terminal and
# not other renderers.
#
# @return [Array|String|NilClass]
def render_output
if escape_sequence?
direct_write!
else
buffer_write!
end
end
protected
# @!attribute [r] output
# @return [Array<Array<Vedeu::Views::Char>>|
# NilClass|Vedeu::Models::Escape]
attr_reader :output
private
# @return [Array]
def buffer_write!
Vedeu::Terminal::Buffer.write(output)
end
# @return [Array<String>]
def direct_write!
Vedeu::Terminal.output(output.to_s)
end
# @return [Boolean]
def escape_sequence?
output.is_a?(Vedeu::Models::Escape)
end
end # Output
end # Output
# Write the given output to the configured or default renderers.
#
# @example
# Vedeu.render_output(output)
#
# @!method render_output
# @return [Array|NilClass]
def_delegators Vedeu::Output::Output, :render_output
end # Vedeu
Version data entries
12 entries across 12 versions & 1 rubygems