discourse/app/assets/javascripts/admin/addon/components/permalink-form.hbs

<div class="permalink-form">
  <div class="inline-form">
    <label>{{i18n "admin.permalink.form.label"}}</label>

    <TextField
      @value={{this.url}}
      @disabled={{this.formSubmitted}}
      @placeholderKey="admin.permalink.url"
      @autocorrect="off"
      @autocapitalize="off"
      class="permalink-url"
    />

    <ComboBox
      @content={{this.permalinkTypes}}
      @value={{this.permalinkType}}
      @onChange={{fn (mut this.permalinkType)}}
      class="permalink-type"
    />

    <TextField
      @value={{this.permalinkTypeValue}}
      @disabled={{this.formSubmitted}}
      @placeholderKey={{this.permalinkTypePlaceholder}}
      @autocorrect="off"
      @autocapitalize="off"
      @keyDown={{this.submitFormOnEnter}}
      class="permalink-destination"
    />

    <DButton
      @action={{this.onSubmit}}
      @disabled={{this.formSubmitted}}
      @label="admin.permalink.form.add"
      class="permalink-add"
    />
  </div>
</div>