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# frozen_string_literal: true
module RQRCode
module Export
module HTML
#
# Use this module to HTML-ify the QR code if you just want the default HTML
def as_html
["<table>", rows.as_html, "</table>"].join
end
private
def rows
Rows.new(@qrcode)
end
class Rows < Struct.new(:qr)
def as_html
rows.map(&:as_html).join
end
def rows
qr.modules.each_with_index.map { |qr_module, row_index| Row.new(qr, qr_module, row_index) }
end
end
class Row < Struct.new(:qr, :qr_module, :row_index)
def as_html
["<tr>", cells.map(&:as_html).join, "</tr>"].join
end
def cells
qr.modules.each_with_index.map { |qr_module, col_index| Cell.new(qr, col_index, row_index) }
end
end
class Cell < Struct.new(:qr, :col_index, :row_index)
def as_html
"<td class=\"#{html_class}\"></td>"
end
def html_class
qr.checked?(row_index, col_index) ? "black" : "white"
end
end
end
end
end
RQRCode::QRCode.send :include, RQRCode::Export::HTML
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