Class: Bidi2pdfRails::Services::PdfRenderer

Inherits:
Object
  • Object
show all
Defined in:
lib/bidi2pdf_rails/services/pdf_renderer.rb

Overview

PdfRenderer is responsible for rendering a Rails view into a PDF using headless Chrome.

It delegates option parsing and controller-aware defaults to an options handler object, which splits responsibilities across HTML rendering, PDF configuration, and optional URL rendering.

Examples:

Basic usage

options_handler = Bidi2pdfRails::Services::RenderOptionsHandler.new(options, controller)
renderer = Bidi2pdfRails::Services::PdfRenderer.new(options_handler)
renderer.render_pdf

Constant Summary collapse

PDF_OPTIONS = 
%i[
  print_options
  asset_host
  wait_for_network_idle
  wait_for_page_loaded
  wait_for_page_check_script
  html
  callbacks
].freeze
%i[
  url
  auth
  headers
  cookies
].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options_handler) ⇒ PdfRenderer

Returns a new instance of PdfRenderer.



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# File 'lib/bidi2pdf_rails/services/pdf_renderer.rb', line 42

def initialize(options_handler)
  @options_handler = options_handler
end

Instance Attribute Details

#options_handler ⇒ Object (readonly)

Returns the value of attribute options_handler.



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# File 'lib/bidi2pdf_rails/services/pdf_renderer.rb', line 40

def options_handler
  @options_handler
end

Instance Method Details

#render_pdf ⇒ Object 



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# File 'lib/bidi2pdf_rails/services/pdf_renderer.rb', line 46

def render_pdf
  ActiveSupport::Notifications.instrument("handle_printing.bidi2pdf_rails") do
    if options_handler.url.url?
      headers = options_handler.url.headers
      cookies = options_handler.url.cookies
      auth = options_handler.url.auth

      UrlToPdfConverter.new(options_handler.url.url,
                            headers: headers,
                            cookies: cookies,
                            auth: auth,
                            print_options: options_handler.pdf.print_options,
                            wait_for_network_idle: options_handler.pdf.wait_for_network_idle,
                            wait_for_page_loaded: options_handler.pdf.wait_for_page_loaded,
                            wait_for_page_check_script: options_handler.pdf.wait_for_page_check_script,
                            custom_css: options_handler.pdf.custom_css,
                            custom_css_url: options_handler.pdf.custom_css_url,
                            custom_js: options_handler.pdf.custom_js,
                            custom_js_url: options_handler.pdf.custom_js_url,
                            callbacks: options_handler.pdf.callbacks
      ).generate
    else
      HtmlToPdfConverter.new(options_handler.html.html,
                             print_options: options_handler.pdf.print_options,
                             wait_for_network_idle: options_handler.pdf.wait_for_network_idle,
                             wait_for_page_loaded: options_handler.pdf.wait_for_page_loaded,
                             wait_for_page_check_script: options_handler.pdf.wait_for_page_check_script,
                             custom_css: options_handler.pdf.custom_css,
                             custom_css_url: options_handler.pdf.custom_css_url,
                             custom_js: options_handler.pdf.custom_js,
                             custom_js_url: options_handler.pdf.custom_js_url,
                             callbacks: options_handler.pdf.callbacks
      ).generate
    end
  end
end