Class: Primer::IconButton

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

Overview

Use IconButton to render Icon-only buttons without the default button styles.

IconButton will always render with a tooltip unless the tag is :summary.

Constant Summary collapse

DEFAULT_SCHEME = 
:default
SCHEME_MAPPINGS = 
{
  DEFAULT_SCHEME => "",
  :danger => "btn-octicon-danger"
}.freeze
SCHEME_OPTIONS = 
SCHEME_MAPPINGS.keys

Instance Method Summary collapse

Constructor Details

#initialize(icon:, scheme: DEFAULT_SCHEME, box: false, tooltip_direction: Primer::Alpha::Tooltip::DIRECTION_DEFAULT, **system_arguments) ⇒ IconButton

Returns a new instance of IconButton.

Parameters:

  • scheme (Symbol) (defaults to: DEFAULT_SCHEME) —

    <%= one_of(Primer::IconButton::SCHEME_OPTIONS) %>

  • icon (String) —

    Name of <%= link_to_octicons %> to use.

  • tag (Symbol) —

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

  • type (Symbol) —

    <%= one_of(Primer::Beta::BaseButton::TYPE_OPTIONS) %>

  • aria-label (String) —

    String that can be read by assistive technology. A label should be short and concise. See the accessibility section for more information.

  • aria-description (String) —

    String that can be read by assistive technology. A description can be longer as it is intended to provide more context and information. See the accessibility section for more information.

  • tooltip_direction (Symbol) (defaults to: Primer::Alpha::Tooltip::DIRECTION_DEFAULT) —

    (Primer::Alpha::Tooltip::DIRECTION_DEFAULT) <%= one_of(Primer::Alpha::Tooltip::DIRECTION_OPTIONS) %>

  • box (Boolean) (defaults to: false) —

    Whether the button is in a <%= link_to_component(Primer::Beta::BorderBox) %>. If true, the button will have the Box-btn-octicon class.

  • system_arguments (Hash) —

    <%= link_to_system_arguments_docs %>



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# File 'app/components/primer/icon_button.rb', line 33

def initialize(icon:, scheme: DEFAULT_SCHEME, box: false, tooltip_direction: Primer::Alpha::Tooltip::DIRECTION_DEFAULT, **system_arguments)
  @icon = icon

  @system_arguments = system_arguments

  @system_arguments[:id] ||= self.class.generate_id

  @system_arguments[:classes] = class_names(
    "btn-octicon",
    SCHEME_MAPPINGS[fetch_or_fallback(SCHEME_OPTIONS, scheme, DEFAULT_SCHEME)],
    system_arguments[:classes],
    "Box-btn-octicon" => box
  )

  validate_aria_label

  @aria_label = aria("label", @system_arguments)
  @aria_description = aria("description", @system_arguments)

  @tooltip_arguments = {
    for_id: @system_arguments[:id],
    direction: tooltip_direction
  }

  # If we have both an `aria-label` and a `aria-description`, we create a `Tooltip` with the description type and keep the `aria-label` in the button.
  # Otherwise, the `aria-label` is used as the tooltip text, which is the `aria-labelled-by` of the button, so we don't set it in the button.
  if @aria_label.present? && @aria_description.present?
    @system_arguments.delete(:"aria-description")
    @system_arguments[:aria].delete(:description) if @system_arguments.include?(:aria)
    @tooltip_arguments[:text] = @aria_description
    @tooltip_arguments[:type] = :description
  else
    @system_arguments.delete(:"aria-label")
    @system_arguments[:aria].delete(:label) if @system_arguments.include?(:aria)
    @tooltip_arguments[:text] = @aria_label
    @tooltip_arguments[:type] = :label
  end
end