Class: ViewComponentReflex::ReflexFactory

Inherits:
Object
  • Object
show all
Defined in:
lib/view_component_reflex/reflex_factory.rb

Instance Method Summary collapse

Constructor Details

#initialize(component) ⇒ ReflexFactory

Returns a new instance of ReflexFactory.



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# File 'lib/view_component_reflex/reflex_factory.rb', line 3

def initialize(component)
  @component = component
  @new = false
  reflex.component_class = component
end

Instance Method Details

#build_reflex_instance ⇒ Object

Beyond just creating the <Component>Reflex class, we need to define all the component methods on the reflex class. This replaces the old method_missing implementation, and passes more strict validation of recent SR versions



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# File 'lib/view_component_reflex/reflex_factory.rb', line 41

def build_reflex_instance
  reflex_methods = @component.instance_methods - ViewComponentReflex::Component.instance_methods - [:call, :"_call_#{@component.name.underscore}"]
  component_allocate = @component.allocate
  Class.new(@component.reflex_base_class).tap do |klass|
    klass.instance_variable_set(:@__method_parameters, {})

    reflex_methods.each do |m|
      klass.instance_variable_get(:@__method_parameters)[m.to_s] = component_allocate.method(m).parameters
      klass.define_method(m) do |*args, &blk|
        delegate_call_to_reflex(m, *args, &blk)
      end
    end

    # SR does validation of incoming arguments against method definitions

    # so we need to fake our method definitions call here

    klass.define_method(:method) do |name|
      method = super(name)
      params = self.class.instance_variable_get(:@__method_parameters)

      if params && params[name]
        method.define_singleton_method(:parameters) do
          params[name]
        end
      end

      method
    end
  end
end

#nested? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/view_component_reflex/reflex_factory.rb', line 9

def nested?
  @nested ||= @component.name.include?("::")
end

#new? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/view_component_reflex/reflex_factory.rb', line 21

def new?
  @new
end

#reflex ⇒ Object 



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# File 'lib/view_component_reflex/reflex_factory.rb', line 25

def reflex
  @reflex ||= if nested?
    reflex_from_nested_component
  else
    reflex_from_component
  end
end

#reflex_from_component ⇒ Object 



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# File 'lib/view_component_reflex/reflex_factory.rb', line 86

def reflex_from_component
  if Object.const_defined?(reflex_name)
    Object.const_get(reflex_name)
  else
    @new = true
    Object.const_set(reflex_name, reflex_instance)
  end
end

#reflex_from_nested_component ⇒ Object 



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# File 'lib/view_component_reflex/reflex_factory.rb', line 71

def reflex_from_nested_component
  parent = if @component.respond_to? :module_parent
    @component.module_parent
  else
    @component.parent
  end

  if parent.const_defined?(reflex_name)
    parent.const_get(reflex_name)
  else
    @new = true
    parent.const_set(reflex_name, reflex_instance)
  end
end

#reflex_instance ⇒ Object 



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# File 'lib/view_component_reflex/reflex_factory.rb', line 33

def reflex_instance
  @reflex_instance ||= build_reflex_instance
end

#reflex_name ⇒ Object 



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# File 'lib/view_component_reflex/reflex_factory.rb', line 13

def reflex_name
  @reflex_name ||= if nested?
    @component.name.split("::").last
  else
    @component.name
  end + "Reflex"
end