Class: Navigator::Menu

Inherits:
Object
  • Object
show all
Defined in:
lib/navigator/menu.rb

Overview

Renders a HTML menu.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(template, tag: "ul", attributes: {}, activator: Navigator::TagActivator.new, &block) ⇒ Menu

Returns a new instance of Menu.



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# File 'lib/navigator/menu.rb', line 10

def initialize template, tag: "ul", attributes: {}, activator: Navigator::TagActivator.new, &block
  @template = template
  @tag = Navigator::Tag.new tag, attributes: attributes, activator: activator
  @menu_activator = activator
  @items = []
  instance_eval(&block) if block_given?
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args, &block) ⇒ Object

rubocop:disable Style/MethodMissing



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# File 'lib/navigator/menu.rb', line 53

def method_missing name, *args, &block
  if method_allowed?(name.to_s)
    add(name, *args, &block)
  else
    template.public_send name, *args
  end
end

Class Method Details

.allowed_methods ⇒ Object 



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# File 'lib/navigator/menu.rb', line 6

def self.allowed_methods
  /^(div|section|header|h[1-6]|nav|ul|li|a|img|b|em|s|small|span|strong|sub|sup|form|label|select|option|input|button)$/
end

Instance Method Details

#add(name, content = nil, attributes: {}, activator: menu_activator, &block) ⇒ Object 



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# File 'lib/navigator/menu.rb', line 18

def add name, content = nil, attributes: {}, activator: menu_activator, &block
  tag = Navigator::Tag.new name, content, attributes: attributes, activator: activator
  return items << tag.render unless block_given?

  items << tag.prefix
  items << tag.content
  instance_eval(&block)
  items << tag.suffix
end

#image(url, alt = nil, attributes: {}, activator: menu_activator) ⇒ Object 



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# File 'lib/navigator/menu.rb', line 32

def image url, alt = nil, attributes: {}, activator: menu_activator
  modified_attributes = attributes.merge src: url, alt: alt
  modified_attributes = modified_attributes.delete_if { |_, value| !value.present? }

  add "img", attributes: modified_attributes, activator: activator
end

#item(content = nil, url, item_attributes: {}, link_attributes: {}, activator: menu_activator, &block) ⇒ Object 



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# File 'lib/navigator/menu.rb', line 39

def item content = nil, url, item_attributes: {}, link_attributes: {}, activator: menu_activator, &block
  modified_item_attributes = item_attributes.clone
  activate_item_attributes! modified_item_attributes, url, activator

  add "li", attributes: modified_item_attributes, activator: activator do
    link content, url, attributes: link_attributes, activator: Navigator::TagActivator.new, &block
  end
end

#link(content = nil, url, attributes: {}, activator: menu_activator, &block) ⇒ Object 



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# File 'lib/navigator/menu.rb', line 28

def link content = nil, url, attributes: {}, activator: menu_activator, &block
  add "a", content, attributes: attributes.merge(href: url), activator: activator, &block
end

#render ⇒ Object 



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# File 'lib/navigator/menu.rb', line 61

def render
  [tag.prefix, tag.content, items.compact.join(""), tag.suffix].compact * ""
end

#respond_to?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/navigator/menu.rb', line 48

def respond_to? name
  method_allowed?(name) || super(name)
end