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# frozen_string_literal: true
require "io/wait"
require_relative "keys"
require_relative "mode"
module TTY
class Reader
class Console
ESC = "\e"
CSI = "\e["
TIMEOUT = 0.1
# Key codes
#
# @return [Hash[Symbol]]
#
# @api public
attr_reader :keys
# Escape codes
#
# @return [Array[Integer]]
#
# @api public
attr_reader :escape_codes
def initialize(input)
@input = input
@mode = Mode.new(input)
@keys = Keys.ctrl_keys.merge(Keys.keys)
@escape_codes = [[ESC.ord], CSI.bytes.to_a]
end
# Get a character from console with echo
#
# @param [Boolean] echo
# whether to echo input back or not, defaults to true
# @param [Boolean] raw
# whether to use raw mode or not, defaults to false
# @param [Boolean] nonblock
# whether to wait for input or not, defaults to false
#
# @return [String]
#
# @api private
def get_char(echo: true, raw: false, nonblock: false)
mode.raw(raw) do
mode.echo(echo) do
if nonblock
input.wait_readable(TIMEOUT) ? input.getc : nil
else
input.getc
end
end
end
end
protected
attr_reader :mode
attr_reader :input
end # Console
end # Reader
end # TTY
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