Class: Primer::Beta::Heading

Inherits:
Component
  • Object
show all
Defined in:
app/components/primer/beta/heading.rb

Overview

‘Heading` should be used to communicate page organization and hierarchy.

  • Set tag to one of ‘:h1`, `:h2`, `:h3`, `:h4`, `:h5`, `:h6` based on what is appropriate for the page context.

  • Use ‘Heading` as the title of a section or sub section.

  • Do not use ‘Heading` for styling alone. For simply styling text, consider using <%= link_to_component(Primer::Beta::Text) %> with relevant <%= link_to_typography_docs %> such as `font_size` and `font_weight`.

  • Do not jump heading levels. For instance, do not follow a ‘<h1>` with an `<h3>`. Heading levels should increase by one in ascending order.

Constant Summary collapse

TAG_FALLBACK = 
:h2
TAG_OPTIONS = 
[:h1, TAG_FALLBACK, :h3, :h4, :h5, :h6].freeze

Constants inherited from Component

Component::INVALID_ARIA_LABEL_TAGS

Constants included from Status::Dsl

Status::Dsl::STATUSES

Constants included from ViewHelper

ViewHelper::HELPERS

Constants included from TestSelectorHelper

TestSelectorHelper::TEST_SELECTOR_TAG

Constants included from FetchOrFallbackHelper

FetchOrFallbackHelper::InvalidValueError

Constants included from AttributesHelper

AttributesHelper::PLURAL_ARIA_ATTRIBUTES, AttributesHelper::PLURAL_DATA_ATTRIBUTES

Instance Method Summary collapse

Methods inherited from Component

deprecated?, generate_id

Methods included from JoinStyleArgumentsHelper

#join_style_arguments

Methods included from TestSelectorHelper

#add_test_selector

Methods included from FetchOrFallbackHelper

#fetch_or_fallback, #fetch_or_fallback_boolean, #silence_deprecations?

Methods included from ClassNameHelper

#class_names

Methods included from AttributesHelper

#aria, #data, #merge_aria, #merge_data, #merge_prefixed_attribute_hashes

Constructor Details

#initialize(tag:, **system_arguments) ⇒ Heading

Returns a new instance of Heading.

Parameters:

  • tag (String) —

    <%= one_of(Primer::Beta::Heading::TAG_OPTIONS) %>

  • system_arguments (Hash) —

    <%= link_to_system_arguments_docs %>



28
29
30
31
 
# File 'app/components/primer/beta/heading.rb', line 28

def initialize(tag:, **system_arguments)
  @system_arguments = system_arguments
  @system_arguments[:tag] = fetch_or_fallback(TAG_OPTIONS, tag, TAG_FALLBACK)
end

Instance Method Details

#call ⇒ Object 



33
34
35
 
# File 'app/components/primer/beta/heading.rb', line 33

def call
  render(Primer::BaseComponent.new(**@system_arguments)) { content }
end