Module: Deface::TemplateHelper

Included in:
Precompiler, Sources::Partial, Sources::Template
Defined in:
lib/deface/template_helper.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.lookup_context ⇒ Object 



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# File 'lib/deface/template_helper.rb', line 3

def self.lookup_context
  @lookup_context ||= ActionView::LookupContext.new(
    ActionController::Base.view_paths, {:formats => [:html]}
  )
end

Instance Method Details

#element_source(template_source, selector) ⇒ Object

gets source erb for an element



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# File 'lib/deface/template_helper.rb', line 59

def element_source(template_source, selector)
  doc = Deface::Parser.convert(template_source)

  doc.css(selector).inject([]) do |result, match|
    result << Deface::Parser.undo_erb_markup!(match.to_s.dup)
  end
end

#load_template_source(virtual_path, partial, apply_overrides = true, lookup_context: Deface::TemplateHelper.lookup_context) ⇒ Object

used to find source for a partial or template using virtual_path



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# File 'lib/deface/template_helper.rb', line 10

def load_template_source(virtual_path, partial, apply_overrides=true, lookup_context: Deface::TemplateHelper.lookup_context)
  parts = virtual_path.split("/")

  if parts.size == 2
    prefix = nil
    name = virtual_path
  else
    prefix = [parts.shift]
    name = parts.join("/")
  end

  view = lookup_context.disable_cache { lookup_context.find(name, prefix, partial) }

  source =
    if view.handler.to_s == "Haml::Plugin"
      Deface::HamlConverter.new(view.source).result
    elsif view.handler.class.to_s == "Slim::RailsTemplate"
      Deface::SlimConverter.new(view.source).result
    else
      view.source
    end

  if apply_overrides
    begin
      # This needs to be reviewed for production mode, overrides not present
      original_enabled = Rails.application.config.deface.enabled
      Rails.application.config.deface.enabled = apply_overrides

      syntax = Deface::ActionViewExtensions.determine_syntax(view.handler)
      overrides = Deface::Override.find(
        locals: view.instance_variable_get(:@locals),
        format: view.instance_variable_get(:@format),
        variant: view.instance_variable_get(:@variant),
        virtual_path: view.instance_variable_get(:@virtual_path),
      )

      if syntax && overrides.any?
        source = Deface::Override.convert_source(source, syntax: syntax)
        source = Deface::Override.apply_overrides(source, overrides: overrides)
      end
    ensure
      Rails.application.config.deface.enabled = original_enabled
    end
  end

  source
end