Class: Ilex::Context

Inherits:
Arbre::Context
  • Object
show all
Defined in:
lib/ilex/context.rb

Overview

Inject a component’s instance variables into arbre’s default context as well as provide implicit handling of snake-cased component names as tags

Instance Method Summary collapse

Constructor Details

#initialize(component, &blk) ⇒ Context

Returns a new instance of Context.



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# File 'lib/ilex/context.rb', line 10

def initialize(component, &blk)
  @component = component


  # Copy all of the instance variables from the component to the context,
  # so we have access to them when rendering
  @component.instance_variables.each do |iv|
    instance_variable_set(iv, @component.instance_variable_get(iv))
  end

  super({}, component, &blk)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method, *args, &content_block) ⇒ Object 



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# File 'lib/ilex/context.rb', line 59

def method_missing(method, *args, &content_block)
  if @component.respond_to?(method)
    @component.send(method, *args, &content_block)
  elsif component_wardens[method].exists?
    render component_wardens[method].new(*args), &content_block
  else
    super
  end
end

Instance Method Details

#component_wardens ⇒ Object 



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# File 'lib/ilex/context.rb', line 27

def component_wardens
  @component_wardens ||= ComponentWardens.new(@component)
end

#content ⇒ Object 



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# File 'lib/ilex/context.rb', line 23

def content
  @component.send :content
end

#render(*args) ⇒ Object

This is overriding arbre::rails::rendering It performs the same actions, but returns html_safe on a passed block

Not 100% sure this is needed, but view_components won’t render their contents without it, when rendered in an arbre tree



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# File 'lib/ilex/context.rb', line 36

def render(*args)
  rendered = helpers.render(*args) do
    if block_given?
      contents = yield
      if contents.is_a? Array
        contents.join.html_safe
      else
        contents.html_safe
      end
    end
  end
  case rendered
  when Arbre::Context
    current_arbre_element.add_child rendered
  else
    text_node rendered
  end
end

#respond_to_missing?(method, include_all) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ilex/context.rb', line 55

def respond_to_missing?(method, include_all)
  @component.respond_to?(method) || component_wardens[method].exists? || super
end