Class: Pebblebed::Parts

Inherits:
Object
  • Object
show all
Defined in:
lib/pebblebed/parts.rb

Overview

A class to help consumers of layout parts embed parts

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(connector) ⇒ Parts

Returns a new instance of Parts.



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# File 'lib/pebblebed/parts.rb', line 14

def initialize(connector)
  @composition_strategy = :ssi # <- It's the best! Use Nginx with SSI
  @preloadable = {} # <- A cache to remember which parts are preloadable
  @connector = connector
end

Instance Attribute Details

#composition_strategy ⇒ Object

Returns the value of attribute composition_strategy.



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# File 'lib/pebblebed/parts.rb', line 5

def composition_strategy
  @composition_strategy
end

Class Method Details

.register_composition_strategy(name, &block) ⇒ Object

Register a new composition strategy handler. The block must accept two parameters: |url, params| and is expected to return whatever markup is needed to make it happen.



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# File 'lib/pebblebed/parts.rb', line 58

def self.register_composition_strategy(name, &block)
  @composition_strategies[name.to_sym] = block
end

Instance Method Details

#javascript_urls ⇒ Object 



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# File 'lib/pebblebed/parts.rb', line 50

def javascript_urls
  manifests.keys.map do |service|
    @connector[service].service_url("/parts/assets/parts.js")
  end
end

#manifests ⇒ Object

All part manifests for all configured pebbles as a hash of DeepStructs



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# File 'lib/pebblebed/parts.rb', line 21

def manifests
  @manifests ||= @connector.quorum.get("/parts")
  @manifests.each { |k,v| @manifests.delete(k) if v.is_a?(Pebblebed::HttpError) }
  @manifests
end

#markup(partspec, params = nil) ⇒ Object

Generates the markup for the part according to the composition strategy



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# File 'lib/pebblebed/parts.rb', line 38

def markup(partspec, params = nil)
  ["<div data-pebbles-component=\"#{partspec}\" #{self.class.data_attributes(params || {})}>",
   composition_markup_from_partspec(partspec, params),
   "</div>"].join
end

#reload_manifest ⇒ Object 



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# File 'lib/pebblebed/parts.rb', line 27

def reload_manifest
  @manifests = nil
end

#stylesheet_urls ⇒ Object 



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# File 'lib/pebblebed/parts.rb', line 44

def stylesheet_urls
  manifests.keys.map do |service|
    @connector[service].service_url("/parts/assets/parts.css")
  end
end