Class: Navigator::Menu

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

Overview

Renders a HTML menu.

Constant Summary collapse

ALLOWED_ELEMENTS = 
/
  ^(
  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
  )$
/x

Instance Method Summary collapse

Constructor Details

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

Returns a new instance of Menu.



34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/navigator/menu.rb', line 34

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

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *positionals, **keywords) ⇒ Object 



85
86
87
88
89
90
91
 
# File 'lib/navigator/menu.rb', line 85

def method_missing(name, *positionals, **keywords, &)
  if respond_to_missing? name
    add(name, *positionals, **keywords, &)
  else
    template.public_send(name, *positionals, **keywords) || super
  end
end

Instance Method Details

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



46
47
48
49
50
51
52
53
54
 
# File 'lib/navigator/menu.rb', line 46

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

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

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



60
61
62
63
64
65
 
# File 'lib/navigator/menu.rb', line 60

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

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

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



67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
 
# File 'lib/navigator/menu.rb', line 67

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

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



56
57
58
 
# File 'lib/navigator/menu.rb', line 56

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

#render ⇒ Object 



93
 
# File 'lib/navigator/menu.rb', line 93

def render = [tag.prefix, tag.content, items.compact.join, tag.suffix].compact.join