mastodon/app/views/about/_registration.html.haml

.simple_form__overlay-area{ class: (closed_registrations? && @instance_presenter.closed_registrations_message.present?) ? 'simple_form__overlay-area__blurred' : '' }
  = simple_form_for(new_user, url: user_registration_path, namespace: 'registration', html: { novalidate: false }) do |f|
    %p.lead= t('about.federation_hint_html', instance: content_tag(:strong, site_hostname))

    .fields-group
      = f.simple_fields_for :account do |account_fields|
        = account_fields.input :username, wrapper: :with_label, label: false, required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.username'), :autocomplete => 'off', placeholder: t('simple_form.labels.defaults.username'), pattern: '[a-zA-Z0-9_]+', maxlength: 30 }, append: "@#{site_hostname}", hint: false, disabled: closed_registrations?

      = f.input :email, placeholder: t('simple_form.labels.defaults.email'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.email'), :autocomplete => 'off' }, hint: false, disabled: closed_registrations?
      = f.input :password, placeholder: t('simple_form.labels.defaults.password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.password'), :autocomplete => 'off', :minlength => User.password_length.first, :maxlength => User.password_length.last }, hint: false, disabled: closed_registrations?
      = f.input :password_confirmation, placeholder: t('simple_form.labels.defaults.confirm_password'), required: true, input_html: { 'aria-label' => t('simple_form.labels.defaults.confirm_password'), :autocomplete => 'off' }, hint: false, disabled: closed_registrations?

    - if approved_registrations?
      .fields-group
        = f.simple_fields_for :invite_request do |invite_request_fields|
          = invite_request_fields.input :text, as: :text, wrapper: :with_block_label, required: false

    .fields-group
      = f.input :agreement, as: :boolean, wrapper: :with_label, label: t('auth.checkbox_agreement_html', rules_path: about_more_path, terms_path: terms_path), required: true, disabled: closed_registrations?

    .actions
      = f.button :button, sign_up_message, type: :submit, class: 'button button-primary', disabled: closed_registrations?

  - if closed_registrations? && @instance_presenter.closed_registrations_message.present?
    .simple_form__overlay-area__overlay
      .simple_form__overlay-area__overlay__content.rich-formatting
        .block-icon= fa_icon 'warning'
        = @instance_presenter.closed_registrations_message.html_safe