Class: DraftForge::PdfRenderer

Inherits:
Object
  • Object
show all
Defined in:
app/services/draft_forge/pdf_renderer.rb

Class Method Summary collapse

Class Method Details

.call(raw_html) ⇒ Object 



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# File 'app/services/draft_forge/pdf_renderer.rb', line 7

def self.call(raw_html)
  safe_html = HtmlSanitizer.call(raw_html)
  html = wrap_html(safe_html)

  tempfile = Tempfile.new(["draft_forge", ".pdf"])
  tempfile.binmode
  begin
    Grover.new(html, **DraftForge.pdf_options).to_pdf(path: tempfile.path)
    tempfile.rewind
    tempfile
  rescue
    tempfile.close!
    raise
  end
end

.wrap_html(body) ⇒ Object 



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# File 'app/services/draft_forge/pdf_renderer.rb', line 23

def self.wrap_html(body)
  options = DraftForge.pdf_options
  size = options[:format] || 'A4'
  margin = options[:margin] || {}
  top = margin[:top] || '20mm'
  right = margin[:right] || '15mm'
  bottom = margin[:bottom] || '20mm'
  left = margin[:left] || '15mm'

  <<~HTML
    <!doctype html>
    <html>
      <head>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1" />
        <style>
          @page { size: #{size}; margin: #{top} #{right} #{bottom} #{left}; }
          body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, 'Noto Sans', 'Liberation Sans', sans-serif; font-size: 12px; line-height: 1.45; color: #111; }
          h1, h2, h3 { margin: 0 0 8px; }
          h1 { font-size: 22px; }
          h2 { font-size: 18px; }
          h3 { font-size: 15px; }
          p { margin: 0 0 8px; }
          table { width: 100%; border-collapse: collapse; margin: 8px 0; }
          th, td { border: 1px solid #ccc; padding: 6px 8px; vertical-align: top; }
          img { max-width: 100%; height: auto; }
          .page-break { page-break-after: always; }
          .checklist li { list-style: none; }
        </style>
      </head>
      <body>
        #{body}
      </body>
    </html>
  HTML
end