Class: Prawnto::TemplateHandlers::Renderer

Inherits:
Object
  • Object
show all
Defined in:
lib/prawnto/template_handlers/renderer.rb

Instance Method Summary collapse

Constructor Details

#initialize(view_context, calling_object = nil) ⇒ Renderer

Returns a new instance of Renderer.



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# File 'lib/prawnto/template_handlers/renderer.rb', line 4

def initialize(view_context, calling_object = nil)
  @view_context = view_context
  @calling_object = calling_object
  set_instance_variables
  @pdf = Prawn::Document.new(@prawnto_options[:prawn]);
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(m, *args, &block) ⇒ Object (private)

This method is a little hacky with pushing the instance variables back. I would prefer to use bindings, but wasn’t having much luck.



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# File 'lib/prawnto/template_handlers/renderer.rb', line 43

def method_missing(m, *args, &block)
  begin
    super
  rescue
    if pdf.respond_to?(m.to_s)
      pdf.send(m, *args, &block)
    elsif @calling_object.respond_to?(m.to_s)
      push_instance_variables_to @calling_object
      res = @calling_object.send(m, *args, &block)
      copy_instance_variables_from @calling_object
      res
    elsif @calling_object != @view_context and @view_context.respond_to?(m.to_s)
      push_instance_variables_to @view_context
      res = @view_context.send(m, *args, &block)
      copy_instance_variables_from @view_context
      res
    else
      raise
    end
  end
end

Instance Method Details

#to_pdf(&block) ⇒ Object 



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# File 'lib/prawnto/template_handlers/renderer.rb', line 11

def to_pdf(&block)
  instance_eval(&block)
  @pdf.render.html_safe
end