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Contents
# encoding: utf-8
#
# compatibility.rb - Prawn::Icon FontAwesome 4/5 compatibility shim.
#
# Copyright March 2018, Jesse Doyle. All rights reserved.
#
# This is free software. Please see the LICENSE and COPYING files for details.
module Prawn
class Icon
class Compatibility
SHIMS = YAML.load_file(
File.join(
Base::FONTDIR,
'fa4',
'shims.yml'
)
).freeze
attr_accessor :key
def initialize(opts = {})
self.key = opts.fetch(:key)
end
def translate(io = STDERR)
@translate ||= begin
if key.start_with?('fa-')
map.tap { |replaced| warning(replaced, key, io) }
else
key
end
end
end
private
def map
SHIMS.fetch(key) do
# FontAwesome shim metadata assumes "fas" as the default
# font family if not explicity referenced.
"fas-#{key.sub(/fa-/, '')}"
end
end
def warning(new_key, old_key, io)
io.puts <<-DEPRECATION
[Prawn::Icon - DEPRECATION WARNING]
FontAwesome 4 icon was referenced as '#{old_key}'.
Use the FontAwesome 5 icon '#{new_key}' instead.
This compatibility layer will be removed in Prawn::Icon 3.0.0.
DEPRECATION
end
end
end
end
# rubocop:enable Metrics/ClassLength
Version data entries
4 entries across 4 versions & 1 rubygems