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Versions: 41
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Contents
require "interact"
module VMC
module Interactive
include ::Interactive::Rewindable
def ask(question, options = {})
if force? and options.key?(:default)
options[:default]
else
super
end
end
def list_choices(choices, options = {})
choices.each_with_index do |o, i|
puts "#{c(i + 1, :number)}: #{show_choice(o, options)}"
end
end
def input_state(options)
if options.key? :default
answer = show_default(options)
end
CFState.new(options, answer)
end
def show_default(options)
case options[:default]
when true
"y"
when false
"n"
when nil
""
else
show_choice(options[:default], options)
end
end
def prompt(question, options)
value = show_default(options)
print "#{question}"
print c("> ", :prompt)
unless value.empty?
print "#{d(value) + "\b" * value.size}"
end
end
def handler(event, state)
ans = state.answer
pos = state.position
exit if event == :eof
if state.default?
if event.is_a?(Array) and event[0] == :key
# initial non-movement keypress clears default answer
clear_input(state)
else
# wipe away any coloring
redraw_input(state)
end
state.clear_default!
# tab with a default accepts it and moves to the end
if event == :tab
state.goto(ans.size)
else
super
end
else
super
end
print "\n" if event == :enter
end
class CFState < ::Interactive::InputState
def initialize(options = {}, answer = nil, position = 0)
@options = options
@answer = answer || ""
@default = options.key? :default
@position = position
@done = false
end
def clear_default!
@default = false
end
def default?
@default
end
end
end
end
Version data entries
41 entries across 41 versions & 1 rubygems