Paragon Design System

Technical Documentation

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Form.Control

A form control renders a space for user input (input or select). It can be decorated with leading or trailing elements, and have a floating label.

Prefer to use the Form.Control component inside a Form.Group. The Form.Group provides a context for the control to ensure accessibility requirements for labels and descriptions are met.

Note: extra props added to this component are passed as attributes to the underlying DOM node (input by default). See MDN for documentation on available input attributes or select attributes.

Usage with decorators and floating label

Input types

Validation

Sizes

Theme Variables (SCSS)

$input-padding-y:                       $input-btn-padding-y !default;
$input-padding-x:                       $input-btn-padding-x !default;
$input-font-family:                     $input-btn-font-family !default;
$input-font-size:                       $input-btn-font-size !default;
$input-font-weight:                     $font-weight-base !default;
$input-line-height:                     $input-btn-line-height !default;


$input-padding-y-sm:                    $input-btn-padding-y-sm !default;
$input-padding-x-sm:                    $input-btn-padding-x-sm !default;
$input-font-size-sm:                    $input-btn-font-size-sm !default;
$input-line-height-sm:                  $input-btn-line-height-sm !default;


$input-padding-y-lg:                    $input-btn-padding-y-lg !default;
$input-padding-x-lg:                    $input-btn-padding-x-lg !default;
$input-font-size-lg:                    $input-btn-font-size-lg !default;
$input-line-height-lg:                  $input-btn-line-height-lg !default;


$input-bg:                              $white !default;
$input-disabled-bg:                     theme-color("gray", "background") !default;


$input-color:                           theme-color("gray", "text") !default;
$input-border-color:                    $gray-500 !default;
$input-border-width:                    $input-btn-border-width !default;
$input-box-shadow:                      inset 0 1px 1px rgba($black, .075) !default;


$input-border-radius:                   $border-radius !default;
$input-border-radius-lg:                $border-radius-lg !default;
$input-border-radius-sm:                $border-radius-sm !default;


$input-focus-bg:                        $input-bg !default;
$input-focus-border-color:              $component-active-bg !default;
$input-focus-color:                     $input-color !default;
$input-focus-width:                     1px !default;
$input-focus-box-shadow:                $input-btn-focus-box-shadow !default;


$input-placeholder-color:               theme-color("gray", "light-text") !default;
$input-plaintext-color:                 $body-color !default;


$input-height-border:                   $input-border-width * 2 !default;


$input-height-inner:                    calc(#{$input-line-height * 1em} + #{$input-padding-y * 2}) !default;
$input-height-inner-half:               calc(#{$input-line-height * .5em} + #{$input-padding-y}) !default;
$input-height-inner-quarter:            calc(#{$input-line-height * .25em} + #{$input-padding-y / 2}) !default;


$input-height:                          calc(#{$input-line-height * 1em} + #{$input-padding-y * 2} + #{$input-height-border}) !default;
$input-height-sm:                       calc(#{$input-line-height-sm * 1em} + #{$input-btn-padding-y-sm * 2} + #{$input-height-border}) !default;
$input-height-lg:                       calc(#{$input-line-height-lg * 1em} + #{$input-btn-padding-y-lg * 2} + #{$input-height-border}) !default;


$input-hover-width:                     1px !default;
$input-transition:                      border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;


$form-text-margin-top:                  .25rem !default;


$form-check-input-gutter:               1.25rem !default;
$form-check-input-margin-y:             .3rem !default;
$form-check-input-margin-x:             .25rem !default;


$form-check-inline-margin-x:            .75rem !default;
$form-check-inline-input-margin-x:      .3125rem !default;


$form-grid-gutter-width:                10px !default;
$form-group-margin-bottom:              1rem !default;


$input-group-addon-color:               $input-color !default;
$input-group-addon-bg:                  theme-color("gray", "background") !default;
$input-group-addon-border-color:        $input-border-color !default;


$custom-forms-transition:               background-color .15s ease-in-out, border-color .15s ease-in-out, box-shadow .15s ease-in-out !default;


$custom-control-gutter:                 .5rem !default;
$custom-control-spacer-x:               1rem !default;
$custom-control-cursor:                 null !default;


$custom-control-indicator-size:         1.25rem !default;
$custom-control-indicator-bg:           $input-bg !default;


$custom-control-indicator-bg-size:      100% !default;
$custom-control-indicator-box-shadow:   $input-box-shadow !default;
$custom-control-indicator-border-color: $gray-700 !default;
$custom-control-indicator-border-width: 2px !default;


$custom-control-label-color:            null !default;


$custom-control-indicator-disabled-bg:          $input-disabled-bg !default;
$custom-control-label-disabled-color:           theme-color("gray", "light-text") !default;


$custom-control-indicator-checked-color:        $component-active-bg !default;
$custom-control-indicator-checked-bg:           $component-active-bg !default;
$custom-control-indicator-checked-disabled-bg:  rgba(theme-color("primary"), .5) !default;
$custom-control-indicator-checked-box-shadow:   none !default;
$custom-control-indicator-checked-border-color: $custom-control-indicator-checked-bg !default;


$custom-control-indicator-focus-box-shadow:     0 0 0 4px rgba(0,0,0,.1) !default;
$custom-control-indicator-focus-border-color:   $input-focus-border-color !default;


$custom-control-indicator-active-color:         $component-active-color !default;
$custom-control-indicator-active-bg:            $component-active-bg !default;
$custom-control-indicator-active-box-shadow:    none !default;
$custom-control-indicator-active-border-color:  $custom-control-indicator-active-bg !default;
// <svg width='24' height='24' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'><path d='M19 5V19H5V5H19ZM21 3H3V21H21V3Z' fill='black'/></svg>


$custom-checkbox-indicator-border-radius:       0 !default;
$custom-checkbox-indicator-icon-checked:        str-replace(url("data:image/svg+xml,<svg width='24' height='24' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'><path d='M21 3H3V21H21V3ZM10 17L5 12L6.41 10.59L10 14.17L17.59 6.58L19 8L10 17Z' fill='#{$custom-control-indicator-checked-color}'/></svg>"), "#", "%23") !default;


$custom-checkbox-indicator-indeterminate-bg:           $component-active-bg !default;
$custom-checkbox-indicator-indeterminate-color:        $custom-control-indicator-checked-color !default;
$custom-checkbox-indicator-icon-indeterminate:         str-replace(url("data:image/svg+xml,<svg width='24' height='24' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'><path d='M21 3H3V21H21V3ZM17 13H7V11H17V13Z' fill='#{$custom-checkbox-indicator-indeterminate-color}'/></svg>"), "#", "%23") !default;
$custom-checkbox-indicator-indeterminate-box-shadow:   none !default;
$custom-checkbox-indicator-indeterminate-border-color: $custom-checkbox-indicator-indeterminate-bg !default;


$custom-radio-indicator-border-radius:          50% !default;
$custom-radio-indicator-icon-checked:           str-replace(url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='#{$custom-control-indicator-checked-bg}'/%3e%3c/svg%3e"), "#", "%23") !default;


$custom-switch-indicator-icon-off:              str-replace(url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='#{$custom-control-indicator-checked-bg}'/%3e%3c/svg%3e"), "#", "%23") !default;
$custom-switch-indicator-icon-on:               str-replace(url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='#{$custom-control-indicator-active-color}'/%3e%3c/svg%3e"), "#", "%23") !default;
$custom-switch-width:                           $custom-control-indicator-size * 1.75 !default;
$custom-switch-indicator-border-radius:         $custom-control-indicator-size / 2 !default;
$custom-switch-indicator-size:                  calc(#{$custom-control-indicator-size} - #{$custom-control-indicator-border-width * 4}) !default;
$custom-switch-indicator-checked-bg:            theme-color("success") !default;


$custom-select-padding-y:           $input-padding-y !default;
$custom-select-padding-x:           $input-padding-x !default;
$custom-select-font-family:         $input-font-family !default;
$custom-select-font-size:           $input-font-size !default;
$custom-select-height:              $input-height !default;
$custom-select-indicator-padding:   1rem !default; // Extra padding to account for the presence of the background-image based indicator
$custom-select-font-weight:         $input-font-weight !default;
$custom-select-line-height:         $input-line-height !default;
$custom-select-color:               $input-color !default;
$custom-select-disabled-color:      theme-color("gray", "light-text") !default;
$custom-select-bg:                  $input-bg !default;
$custom-select-disabled-bg:         theme-color("gray", "background") !default;
$custom-select-bg-size:             24px 24px !default; // In pixels because image dimensions
$custom-select-indicator-color:     theme-color("gray", "hover") !default;


$custom-select-indicator:           str-replace(url('data:image/svg+xml,<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M16.59 8.58984L12 13.1698L7.41 8.58984L6 9.99984L12 15.9998L18 9.99984L16.59 8.58984Z" fill="#{$custom-select-indicator-color}"/></svg>'), "#", "%23") !default;
$custom-select-background:          $custom-select-indicator no-repeat right $input-padding-y center / $custom-select-bg-size !default; // Used so we can have multiple background elements (e.g., arrow and feedback icon)


$custom-select-feedback-icon-padding-right: calc((1em + #{2 * $custom-select-padding-y}) * 3 / 4 + #{$custom-select-padding-x + $custom-select-indicator-padding}) !default;
$custom-select-feedback-icon-position:      center right ($custom-select-padding-x + $custom-select-indicator-padding) !default;
$custom-select-feedback-icon-size:          $input-height-inner-half $input-height-inner-half !default;


$custom-select-border-width:        $input-border-width !default;
$custom-select-border-color:        $input-border-color !default;
$custom-select-border-radius:       $border-radius !default;
$custom-select-box-shadow:          inset 0 1px 2px rgba($black, .075) !default;


$custom-select-focus-border-color:  $input-focus-border-color !default;
$custom-select-focus-width:         $input-focus-width !default;
$custom-select-focus-box-shadow:    $input-btn-focus-box-shadow !default;


$custom-select-padding-y-sm:        $input-padding-y-sm !default;
$custom-select-padding-x-sm:        $input-padding-x-sm !default;
$custom-select-font-size-sm:        $input-font-size-sm !default;
$custom-select-height-sm:           $input-height-sm !default;


$custom-select-padding-y-lg:        $input-padding-y-lg !default;
$custom-select-padding-x-lg:        $input-padding-x-lg !default;
$custom-select-font-size-lg:        $input-font-size-lg !default;
$custom-select-height-lg:           $input-height-lg !default;


$custom-range-track-width:          100% !default;
$custom-range-track-height:         .5rem !default;
$custom-range-track-cursor:         pointer !default;
$custom-range-track-bg:             theme-color("gray", "graphic") !default;
$custom-range-track-border-radius:  1rem !default;
$custom-range-track-box-shadow:     inset 0 .25rem .25rem rgba($black, .1) !default;


$custom-range-thumb-width:                   1rem !default;
$custom-range-thumb-height:                  $custom-range-thumb-width !default;
$custom-range-thumb-bg:                      $component-active-bg !default;
$custom-range-thumb-border:                  0 !default;
$custom-range-thumb-border-radius:           1rem !default;
$custom-range-thumb-box-shadow:              0 .1rem .25rem rgba($black, .1) !default;
$custom-range-thumb-focus-box-shadow:        0 0 0 1px $body-bg, $input-focus-box-shadow !default;
$custom-range-thumb-focus-box-shadow-width:  $input-focus-width !default; // For focus box shadow issue in IE/Edge
$custom-range-thumb-active-bg:               lighten($component-active-bg, 35%) !default;
$custom-range-thumb-disabled-bg:             theme-color("gray", "default") !default;


$custom-file-height:                $input-height !default;
$custom-file-height-inner:          $input-height-inner !default;
$custom-file-focus-border-color:    $input-focus-border-color !default;
$custom-file-focus-box-shadow:      $input-focus-box-shadow !default;
$custom-file-disabled-bg:           $input-disabled-bg !default;


$custom-file-padding-y:             $input-padding-y !default;
$custom-file-padding-x:             $input-padding-x !default;
$custom-file-line-height:           $input-line-height !default;
$custom-file-font-family:           $input-font-family !default;
$custom-file-font-weight:           $input-font-weight !default;
$custom-file-color:                 $input-color !default;
$custom-file-bg:                    $input-bg !default;
$custom-file-border-width:          $input-border-width !default;
$custom-file-border-color:          $input-border-color !default;
$custom-file-border-radius:         $input-border-radius !default;
$custom-file-box-shadow:            $input-box-shadow !default;
$custom-file-button-color:          $custom-file-color !default;
$custom-file-button-bg:             $input-group-addon-bg !default;
$custom-file-text: (
  en: "Browse"
) !default;




// Form validation


$form-feedback-margin-top:          $form-text-margin-top !default;
$form-feedback-font-size:           $small-font-size !default;
$form-feedback-valid-color:         theme-color("success") !default;
$form-feedback-invalid-color:       theme-color("danger") !default;


$form-feedback-icon-valid-color:    $form-feedback-valid-color !default;
$form-feedback-icon-valid:          str-replace(url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='#{$form-feedback-icon-valid-color}' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e"), "#", "%23") !default;
$form-feedback-icon-invalid-color:  $form-feedback-invalid-color !default;
$form-feedback-icon-invalid:        str-replace(url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='#{$form-feedback-icon-invalid-color}' viewBox='-2 -2 7 7'%3e%3cpath stroke='#{$form-feedback-icon-invalid-color}' d='M0 0l3 3m0-3L0 3'/%3e%3ccircle r='.5'/%3e%3ccircle cx='3' r='.5'/%3e%3ccircle cy='3' r='.5'/%3e%3ccircle cx='3' cy='3' r='.5'/%3e%3c/svg%3E"), "#", "%23") !default;


$form-validation-states: () !default;
// stylelint-disable-next-line scss/dollar-variable-default
$form-validation-states: map-merge(
  (
    "valid": (
      "color": $form-feedback-valid-color,
      "icon": $form-feedback-icon-valid
    ),
    "invalid": (
      "color": $form-feedback-invalid-color,
      "icon": $form-feedback-icon-invalid
    ),
  ),
  $form-validation-states
);


// Form tooltips must come after regular tooltips
$form-feedback-tooltip-padding-y:     .25rem !default;
$form-feedback-tooltip-padding-x:     .5rem !default;
$form-feedback-tooltip-font-size:     $font-size-sm !default;
$form-feedback-tooltip-line-height:   $line-height-base !default;
$form-feedback-tooltip-opacity:       .9 !default;
$form-feedback-tooltip-border-radius: $border-radius !default;
FormControl Props API
  • className
    string

    Specifies class name to append to the base element.

  • as
    elementType

    Specifies base element for the control component.

    Default'input'
  • defaultValue
    string | number

    Specifies default value of the input component.

  • value
    string | number

    Specifies current value of the input component.

  • id
    string

    Specifies id of the control component.

  • controlClassName
    string

    Specifies class name for the control component.

  • size
    enum'sm' | 'lg'

    Specifies size for the control component.

  • leadingElement
    node

    Specifies leading element to display for the input component.

  • trailingElement
    node

    Specifies trailing element to display for the input component.

  • floatingLabel
    node

    Specifies floating label to display for the input component.

  • plaintext
    bool

    Specifies whether to render input as plain text.

    Defaultfalse
  • isValid
    bool

    Specifies whether to display control in valid state, this affects styling.

  • isInvalid
    bool

    Specifies whether to display control in invalid state, this affects styling.

Guides

Foundations

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