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module Vedeu
module Cells
# Provides the character/escape sequence to draw one cell of a
# with a custom value, colour and style.
#
# The Vedeu::Cells::Escape object represents an escape sequence as
# a single character, meaning they will behave dependent on the
# context in which they are used.
#
# (In a terminal, an escape sequence makes sense, when a view is
# being rendered as HTML, the sequence may be meaningless, for
# example; the sequence to show or hide the cursor.)
#
# @api private
#
class Escape < Vedeu::Cells::Empty
include Vedeu::Geometries::Positionable
# @return [Boolean]
def cell?
false
end
# @return [NilClass]
def null
nil
end
alias_method :background, :null
alias_method :colour, :null
alias_method :foreground, :null
alias_method :style, :null
# Return an empty hash as most escape sequences won't make
# sense as JSON.
#
# @return [Hash<void>]
def to_h
{}
end
alias_method :to_hash, :to_h
# Return an empty string as most escape sequences won't make
# sense as HTML.
#
# @param _options [Hash] Ignored.
# @return [String]
def to_html(_options = {})
''.freeze
end
# @return [String]
def to_s
"#{position}#{value}".freeze
end
alias_method :to_str, :to_s
private
# @return [Hash]
def defaults
super.merge!(position: [1, 1], value: '')
end
end # Escape
end # Cells
end # Vedeu
Version data entries
5 entries across 5 versions & 1 rubygems