Class: Deas::TemplateSource

Inherits:
Object
  • Object
show all
Defined in:
lib/deas/template_source.rb

Direct Known Subclasses

NullTemplateSource

Constant Summary collapse

DISALLOWED_ENGINE_EXTS = 
[ 'rb' ]
DisallowedEngineExtError = 
Class.new(ArgumentError)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path, logger = nil) ⇒ TemplateSource

Returns a new instance of TemplateSource.



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# File 'lib/deas/template_source.rb', line 14

def initialize(path, logger = nil)
  @path = path.to_s
  @default_engine_opts = {
    'source_path'             => @path,
    'logger'                  => logger || Deas::NullLogger.new,
    'default_template_source' => self
  }
  @engines = Hash.new{ |h, k| Deas::NullTemplateEngine.new(@default_engine_opts) }
  @ext_cache = Hash.new do |hash, template_name|
    paths = Dir.glob("#{File.join(@path, template_name.to_s)}.*")
    paths = paths.reject{ |p| !@engines.keys.include?(parse_ext(p)) }
    if !(ext = parse_ext(paths.first.to_s)).nil?
      hash[template_name] = ext
    end
  end
end

Instance Attribute Details

#engines ⇒ Object (readonly)

Returns the value of attribute engines.



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# File 'lib/deas/template_source.rb', line 12

def engines
  @engines
end

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/deas/template_source.rb', line 12

def path
  @path
end

Instance Method Details

#engine(input_ext, engine_class, registered_opts = nil) ⇒ Object 



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# File 'lib/deas/template_source.rb', line 31

def engine(input_ext, engine_class, registered_opts = nil)
  if DISALLOWED_ENGINE_EXTS.include?(input_ext)
    raise DisallowedEngineExtError, "`#{input_ext}` is disallowed as an"\
                                    " engine extension."
  end
  engine_opts = @default_engine_opts.merge(registered_opts || {})
  @engines[input_ext.to_s] = engine_class.new(engine_opts)
end

#engine_for?(ext) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deas/template_source.rb', line 40

def engine_for?(ext)
  @engines.keys.include?(ext)
end

#engine_for_template?(template_name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/deas/template_source.rb', line 44

def engine_for_template?(template_name)
  self.engine_for?(get_template_ext(template_name))
end

#partial(template_name, locals, &content) ⇒ Object 



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# File 'lib/deas/template_source.rb', line 56

def partial(template_name, locals, &content)
  get_engine(template_name).partial(template_name, locals, &content)
end

#render(template_name, view_handler, locals, &content) ⇒ Object 



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# File 'lib/deas/template_source.rb', line 48

def render(template_name, view_handler, locals, &content)
  [ view_handler.layouts,
    template_name
  ].flatten.reverse.inject(content) do |render_proc, name|
    proc{ get_engine(name).render(name, view_handler, locals, &render_proc) }
  end.call
end