Class: Primer::HeadingComponent

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

Overview

‘Heading` can 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. To style text without conveying heading semantics, consider using <%= link_to_component(Primer::TextComponent) %> with relevant <%= link_to_typography_docs %>.

  • 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 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

Instance Method Summary collapse

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

Constructor Details

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

Returns a new instance of HeadingComponent.

Examples:

Default

<%= render(Primer::HeadingComponent.new(tag: :h1)) { "H1 Text" } %>
<%= render(Primer::HeadingComponent.new(tag: :h2)) { "H2 Text" } %>
<%= render(Primer::HeadingComponent.new(tag: :h3)) { "H3 Text" } %>
<%= render(Primer::HeadingComponent.new(tag: :h4)) { "H4 Text" } %>
<%= render(Primer::HeadingComponent.new(tag: :h5)) { "H5 Text" } %>
<%= render(Primer::HeadingComponent.new(tag: :h6)) { "H6 Text" } %>

With ‘font_size`

<%= render(Primer::HeadingComponent.new(tag: :h1, font_size: 6)) { "h1 tag, font_size 6" } %>
<%= render(Primer::HeadingComponent.new(tag: :h2, font_size: 3)) { "h2 tag, font_size 3" } %>
<%= render(Primer::HeadingComponent.new(tag: :h3, font_size: 2)) { "h3 tag, font_size 2" } %>
<%= render(Primer::HeadingComponent.new(tag: :h4, font_size: 0)) { "h4 tag, font_size 0" } %>
<%= render(Primer::HeadingComponent.new(tag: :h5, font_size: 1)) { "h5 tag, font_size 1" } %>
<%= render(Primer::HeadingComponent.new(tag: :h6, font_size: 4)) { "h6 tag, font_size 4" } %>

Parameters:

  • tag (String) —

    <%= one_of(Primer::HeadingComponent::TAG_OPTIONS) %>

  • system_arguments (Hash) —

    <%= link_to_system_arguments_docs %>



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# File 'app/components/primer/heading_component.rb', line 42

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 



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# File 'app/components/primer/heading_component.rb', line 47

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