Class: Primer::Forms::Dsl::Input

Inherits:
Object
  • Object
show all
Includes:
ClassNameHelper
Defined in:
app/lib/primer/forms/dsl/input.rb

Overview

:nodoc:

Constant Summary collapse

SPACE_DELIMITED_ARIA_ATTRIBUTES = 
%i[describedby].freeze
DEFAULT_SIZE = 
:medium
SIZE_MAPPINGS = 
{
  :small => "FormControl-small",
  DEFAULT_SIZE => "FormControl-medium",
  :large => "FormControl-large"
}.freeze
SIZE_OPTIONS = 
SIZE_MAPPINGS.keys
DEFAULT_INPUT_WIDTH = 
:auto
INPUT_WIDTH_MAPPINGS = 
{
  DEFAULT_INPUT_WIDTH => "FormControl-input-width--auto",
  :xsmall => "FormControl-input-width--xsmall",
  :small => "FormControl-input-width--small",
  :medium => "FormControl-input-width--medium",
  :large => "FormControl-input-width--large",
  :xlarge => "FormControl-input-width--xlarge",
  :xxlarge => "FormControl-input-width--xxlarge"
}.freeze
INPUT_WIDTH_OPTIONS = 
INPUT_WIDTH_MAPPINGS.keys

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from ClassNameHelper

#class_names

Constructor Details

#initialize(builder:, form:, **system_arguments) ⇒ Input

Returns a new instance of Input.



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# File 'app/lib/primer/forms/dsl/input.rb', line 72

def initialize(builder:, form:, **system_arguments)
  @builder = builder
  @form = form

  @input_arguments = system_arguments
  @input_arguments.delete(:id) unless @input_arguments[:id].present?
  @label_arguments = @input_arguments.delete(:label_arguments) || {}

  @label_arguments[:class] = class_names(
    @label_arguments[:class],
    @input_arguments.fetch(:visually_hide_label, false) ? "sr-only" : nil
  )

  @input_arguments.delete(:visually_hide_label)

  @input_arguments.delete(:class) if @input_arguments[:class].blank?
  @label_arguments.delete(:class) if @label_arguments[:class].blank?

  @caption = @input_arguments.delete(:caption)
  @validation_message = @input_arguments.delete(:validation_message)
  @invalid = @input_arguments.delete(:invalid)
  @full_width = @input_arguments.delete(:full_width) { true }
  @size = @input_arguments.delete(:size)
  @input_width = @input_arguments.delete(:input_width)

  # If scope_name_to_model is false, the name of the input for eg. `my_field`
  # will be `my_field` instead of the Rails default of `model[my_field]`.
  #
  # We achieve this by passing the `name` option to Rails form builder
  # methods. These methods will use the passed name if provided instead
  # of generating a scoped one.
  #
  unless @input_arguments.delete(:scope_name_to_model) { true }
    @input_arguments[:name] = name
  end
  # rubocop:enable Style/IfUnlessModifier

  # If scope_id_to_model is false, the name of the input for eg. `my_field`
  # will be `my_field` instead of the Rails default of `model_my_field`.
  #
  # We achieve this by passing the `id` option to Rails form builder
  # methods. These methods will use the passed id if provided instead
  # of generating a scoped one. The id is the name of the field unless
  # explicitly provided in system_arguments.
  #
  # rubocop:disable Style/IfUnlessModifier
  unless @input_arguments.delete(:scope_id_to_model) { true }
    @input_arguments[:id] = @input_arguments.delete(:id) { name }
  end
  # rubocop:enable Style/IfUnlessModifier

  # Only set `for` when the id is known. Otherwise leave it unset so
  # Rails generates the scoped id for both label and input; passing
  # `for: nil` would suppress that and drop the association.
  @label_arguments[:for] = @input_arguments[:id] if @input_arguments[:id].present?

  # Whether or not to wrap the component in a FormControl, which renders a
  # label above and validation message beneath the input.
  @form_control = @input_arguments.delete(:form_control) { true }

  @input_arguments[:invalid] = "true" if invalid?

  @base_id = SecureRandom.uuid

  @ids = {}.tap do |id_map|
    id_map[:validation] = "validation-#{@base_id}" if supports_validation?
    id_map[:character_limit_caption] = "character_limit-#{@base_id}" if character_limit?
    id_map[:caption] = "caption-#{@base_id}" if caption? || caption_template?
  end

  add_input_aria(:required, true) if required?
  add_input_aria(:invalid, true) if invalid?
  add_input_aria(:describedby, ids.values) if ids.any?

  # avoid browser-native validation, which doesn't match Primer's style
  input_arguments.delete(:required)
end

Instance Attribute Details

#base_id ⇒ Object (readonly)

Returns the value of attribute base_id.



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# File 'app/lib/primer/forms/dsl/input.rb', line 68

def base_id
  @base_id
end

#builder ⇒ Object (readonly)

Returns the value of attribute builder.



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# File 'app/lib/primer/forms/dsl/input.rb', line 68

def builder
  @builder
end

#caption ⇒ Object (readonly)

Returns the value of attribute caption.



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# File 'app/lib/primer/forms/dsl/input.rb', line 68

def caption
  @caption
end

#form ⇒ Object (readonly)

Returns the value of attribute form.



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# File 'app/lib/primer/forms/dsl/input.rb', line 68

def form
  @form
end

#form_control ⇒ Object (readonly) Also known as: form_control?

Returns the value of attribute form_control.



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# File 'app/lib/primer/forms/dsl/input.rb', line 68

def form_control
  @form_control
end

#ids ⇒ Object (readonly)

Returns the value of attribute ids.



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# File 'app/lib/primer/forms/dsl/input.rb', line 68

def ids
  @ids
end

#input_arguments ⇒ Object (readonly)

Returns the value of attribute input_arguments.



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# File 'app/lib/primer/forms/dsl/input.rb', line 68

def input_arguments
  @input_arguments
end

#label_arguments ⇒ Object (readonly)

Returns the value of attribute label_arguments.



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# File 'app/lib/primer/forms/dsl/input.rb', line 68

def label_arguments
  @label_arguments
end

#validation_message ⇒ Object (readonly)

Returns the value of attribute validation_message.



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# File 'app/lib/primer/forms/dsl/input.rb', line 68

def validation_message
  @validation_message
end

Instance Method Details

#add_input_aria(key, value) ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 162

def add_input_aria(key, value)
  @input_arguments[:aria] ||= {}

  @input_arguments[:aria][key] = if space_delimited_aria_attribute?(key)
                                   aria_join(@input_arguments[:aria][key], *Array(value))
                                 else
                                   value
                                 end
end

#add_input_classes(*class_names) ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 150

def add_input_classes(*class_names)
  input_arguments[:class] = class_names(
    input_arguments[:class], *class_names
  )
end

#add_input_data(key, value) ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 172

def add_input_data(key, value)
  input_data[key] = value
end

#add_label_classes(*class_names) ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 156

def add_label_classes(*class_names)
  label_arguments[:class] = class_names(
    label_arguments[:class], *class_names
  )
end

#autofocus! ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 289

def autofocus!
  input_arguments[:autofocus] = true
end

#caption? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 210

def caption?
  caption.present?
end

#caption_id ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 206

def caption_id
  ids[:caption]
end

#caption_template? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 214

def caption_template?
  return false unless form

  form.caption_template?(caption_template_name)
end

#character_limit? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 224

def character_limit?
  false
end

#character_limit_id ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 228

def character_limit_id
  ids[:character_limit_caption]
end

#character_limit_target_prefix ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 232

def character_limit_target_prefix
  case type
  when :text_field
    "primer-text-field"
  when :text_area
    "primer-text-area"
  else
    ""
  end
end

#disabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 262

def disabled?
  !!input_arguments[:disabled]
end

#focusable? ⇒ Boolean

:nocov:

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 320

def focusable?
  false
end

#full_width? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 266

def full_width?
  @full_width
end

#hidden? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 251

def hidden?
  !!input_arguments[:hidden]
end

#id ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 293

def id
  @input_arguments[:id]
end

#input? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 324

def input?
  true
end

#input_width ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 274

def input_width
  @input_width ||= INPUT_WIDTH_MAPPINGS.include?(@input_width) ? @input_width : DEFAULT_INPUT_WIDTH
end

#invalid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 247

def invalid?
  supports_validation? && !valid?
end

#label ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 306

def label
  raise_for_abstract_method!(__method__)
end

#merge_input_arguments!(arguments) ⇒ Object

:nocov:



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# File 'app/lib/primer/forms/dsl/input.rb', line 183

def merge_input_arguments!(arguments)
  arguments.each do |k, v|
    case k
    when :class, :classes, "class", "classes"
      add_input_classes(v)
    when :aria, "aria"
      v.each do |aria_k, aria_v|
        add_input_aria(aria_k, aria_v)
      end
    when :data, "data"
      v.each do |data_k, data_v|
        add_input_data(data_k, data_v)
      end
    else
      @input_arguments[k] = v
    end
  end
end

#name ⇒ Object

:nocov:



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# File 'app/lib/primer/forms/dsl/input.rb', line 302

def name
  raise_for_abstract_method!(__method__)
end

#remove_input_data(key) ⇒ Object

:nocov:



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# File 'app/lib/primer/forms/dsl/input.rb', line 177

def remove_input_data(key)
  input_data.delete(key)
end

#render_caption_template ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 220

def render_caption_template
  form.render_caption_template(caption_template_name)
end

#required? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 255

def required?
  input_arguments[:required] ||
    input_arguments[:aria_required] ||
    input_arguments[:"aria-required"] ||
    input_arguments.dig(:aria, :required)
end

#size ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 270

def size
  @size ||= SIZE_MAPPINGS.include?(@size) ? @size : DEFAULT_SIZE
end

#supports_validation? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 328

def supports_validation?
  true
end

#to_component ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 314

def to_component
  raise_for_abstract_method!(__method__)
end

#type ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 310

def type
  raise_for_abstract_method!(__method__)
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 243

def valid?
  supports_validation? && validation_messages.empty? && !@invalid
end

#validation_arguments ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 332

def validation_arguments
  {
    class: "FormControl-inlineValidation",
    id: validation_id,
    hidden: valid? || validation_messages.empty?
  }
end

#validation_error_icon_target ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 348

def validation_error_icon_target
  ""
end

#validation_id ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 202

def validation_id
  ids[:validation]
end

#validation_message_arguments ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 340

def validation_message_arguments
  {}
end

#validation_messages ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 278

def validation_messages
  @validation_messages ||=
    if validation_message
      [validation_message]
    elsif builder.object.respond_to?(:errors)
      name ? builder.object.errors.full_messages_for(name) : []
    else
      []
    end
end

#validation_success_icon_target ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 344

def validation_success_icon_target
  ""
end

#value ⇒ Object 



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# File 'app/lib/primer/forms/dsl/input.rb', line 297

def value
  @input_arguments[:value]
end

#values_disambiguate_template_names? ⇒ Boolean

Whether or not the value: argument should be used to determine the caption template for a given field. This is useful in especially radio button groups where each option has the same name but a different value. Check box groups where the values are submitted as an array also use this feature, since each check box also has the same name.

Returns:

  • (Boolean) 


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# File 'app/lib/primer/forms/dsl/input.rb', line 356

def values_disambiguate_template_names?
  false
end