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Versions: 10
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Contents
# frozen_string_literal: true
require_dependency "renalware/letters"
module Renalware
module Letters
# Use pandoc to convert the html letter to RTF
class RTFRenderer
pattr_initialize :letter
REGEX_TO_STRIP_IMAGES = %r{(?m)<img\s*.*?"\s*\/>}.freeze
def render
using_temp_html_file do |temp_file|
rtf_content_converted_from(temp_file)
end
end
def filename
"#{letter.pdf_filename}.rtf"
end
def disposition
"attachment; filename=\"#{filename}\""
end
private
def using_temp_html_file
temp_html_file = Tempfile.new("html_to_be_converted_to_rtf")
temp_html_file << html_with_images_stripped
temp_html_file.close
yield(temp_html_file) if block_given?
ensure
temp_html_file.unlink # allows garbage collection and temp file removal
end
# Use windows line endings (CRLF) rather than linux (LF).
# This solves a problem at Barts exporting RTFs to send to GPs
def rtf_content_converted_from(html_temp_file)
rtf_template = File.join(Engine.root, "lib", "pandoc", "templates", "default.rtf")
options = { template: rtf_template }
PandocRuby.html([html_temp_file.path], options, :standalone).to_rtf("--eol=crlf")
end
def html_with_images_stripped
letter.to_html.gsub(REGEX_TO_STRIP_IMAGES, "")
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems