Class: Glimmer::DSL::Web::ElementExpression

Inherits:
Expression
  • Object
show all
Includes:
GeneralElementExpression
Defined in:
lib/glimmer/dsl/web/element_expression.rb

Constant Summary collapse

REGEXP_ARG_TYPE_STRING = 
/(String)*(Hash)?/

Instance Method Summary collapse

Methods included from GeneralElementExpression

#add_content, #interpret

Instance Method Details

#can_interpret?(parent, keyword, *args, &block) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/dsl/web/element_expression.rb', line 14

def can_interpret?(parent, keyword, *args, &block)
  slot = keyword.to_s.to_sym
  Glimmer::Web::ElementProxy.keyword_supported?(keyword) &&
    (
      (
        args.empty? &&
        (
          parent.nil? ||
          !parent.respond_to?(:slot_elements) ||
          !(parent.slot_elements.keys.include?(slot) || parent.slot_elements.keys.include?(slot.to_s))
        )
      ) ||
      valid_element_args?(args)
    ) &&
    (
      keyword != 'title' ||
      parent.nil? ||
      parent.keyword == 'head'
    ) &&
    ( # ensure SVG keywords only live under SVG element (unless it's the SVG element itself)
      !Glimmer::Web::ElementProxy.svg_keyword_supported?(keyword) ||
      keyword == 'svg' ||
      parent.find_ancestor(include_self: true) { |ancestor| ancestor.keyword == 'svg' }
    )
end

#valid_element_args?(args) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/glimmer/dsl/web/element_expression.rb', line 40

def valid_element_args?(args)
  arg_types = args.map do |arg|
    if arg.is_a?(String)
      'String'
    elsif arg.is_a?(Hash)
      'Hash'
    else
      'Unsupported'
    end
  end
  arg_type_string = arg_types.join
  arg_type_string.match(REGEXP_ARG_TYPE_STRING)
end