choices.js - bootstrap5 theme

choices.scss

@use "sass:color";

$choices-selector: "choices" !default;
$choices-font-size-lg: $font-size-lg !default;
$choices-font-size-md: $font-size-base !default;
$choices-font-size-sm: $font-size-sm !default;
$choices-border-radius: var(--bs-border-radius) !default;
$choices-border-radius-item: 20px !default;
$choices-bg-color: var(--bs-body-bg) !default;
$choices-bg-color-disabled: #eaeaea !default;
$choices-bg-color-dropdown: #fff !default;
$choices-keyline-color: #ddd !default;
$choices-primary-color: #00bcd4 !default;
$choices-disabled-color: #eaeaea !default;
$choices-highlight-color: $choices-primary-color !default;
$choices-button-dimension: 8px !default;
$choices-button-offset: 8px !default;
$choices-icon-cross: url("data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjEiIGhlaWdodD0iMjEiIHZpZXdCb3g9IjAgMCAyMSAyMSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZyBmaWxsPSIjRkZGIiBmaWxsLXJ1bGU9ImV2ZW5vZGQiPjxwYXRoIGQ9Ik0yLjU5Mi4wNDRsMTguMzY0IDE4LjM2NC0yLjU0OCAyLjU0OEwuMDQ0IDIuNTkyeiIvPjxwYXRoIGQ9Ik0wIDE4LjM2NEwxOC4zNjQgMGwyLjU0OCAyLjU0OEwyLjU0OCAyMC45MTJ6Ii8+PC9nPjwvc3ZnPg==") !default;
$choices-icon-cross-inverse: url("data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjEiIGhlaWdodD0iMjEiIHZpZXdCb3g9IjAgMCAyMSAyMSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZyBmaWxsPSIjMDAwIiBmaWxsLXJ1bGU9ImV2ZW5vZGQiPjxwYXRoIGQ9Ik0yLjU5Mi4wNDRsMTguMzY0IDE4LjM2NC0yLjU0OCAyLjU0OEwuMDQ0IDIuNTkyeiIvPjxwYXRoIGQ9Ik0wIDE4LjM2NEwxOC4zNjQgMGwyLjU0OCAyLjU0OEwyLjU0OCAyMC45MTJ6Ii8+PC9nPjwvc3ZnPg==") !default;
$choices-z-index: 1 !default;

.#{$choices-selector} {
  position: relative;
  overflow: hidden;
  font-size: $choices-font-size-lg;

  &:focus {
    outline: none;
  }

  &:last-child {
    margin-bottom: 0;
  }

  &.is-open {
    overflow: visible;
  }


  &.is-focused:not(.is-open) {
    border-color: $form-select-focus-border-color;
    border-radius: $choices-border-radius;
    outline: 0;
    @if $enable-shadows {
      @include box-shadow($form-select-box-shadow, $form-select-focus-box-shadow);
    } @else {
      // Avoid using mixin so we can pass custom focus shadow properly
      box-shadow: $form-select-focus-box-shadow;
    }

    .#{$choices-selector}__inner {
      border-color: $form-select-focus-border-color;
    }
  }

  &.is-disabled {
    .#{$choices-selector}__inner,
    .#{$choices-selector}__input {
      background-color: $choices-bg-color-disabled;
      cursor: not-allowed;
      user-select: none;
    }
    .#{$choices-selector}__item {
      cursor: not-allowed;
    }
  }

  [hidden] {
    display: none !important;
  }

  .#{$choices-selector}__inner {
    border-radius: $choices-border-radius;
  }
}

.#{$choices-selector}[data-type*='select-one'] {
  cursor: pointer;

  .#{$choices-selector}__input {
    display: block;
    width: 100%;
    border-bottom: 1px solid $choices-keyline-color;
    background-color: #fff;
    margin: 0;
  }
  .#{$choices-selector}__button {
    background-image: $choices-icon-cross-inverse;
    padding: 0;
    background-size: 8px;
    position: absolute;
    top: 50%;
    right: 0;
    margin-top: -10px;
    margin-right: 25px;
    height: 20px;
    width: 20px;
    border-radius: 10em;
    opacity: 0.25;

    &:hover,
    &:focus {
      opacity: 1;
    }

    &:focus {
      box-shadow: 0 0 0 2px $choices-highlight-color;
    }
  }
  .#{$choices-selector}__item[data-value=''] .#{$choices-selector}__button {
    display: none;
  }

  &.is-open::after {
    margin-top: -7.5px;
  }

  &[dir="rtl"] {
    &::after {
      left: 11.5px;
      right: auto;
    }
    .#{$choices-selector}__button {
      right: auto;
      left: 0;
      margin-left: 25px;
      margin-right: 0;
    }
  }
}

.#{$choices-selector}[data-type*='select-multiple'],
.#{$choices-selector}[data-type*='text'] {
  .#{$choices-selector}__inner {
    cursor: text;
  }
  .#{$choices-selector}__button {
    position: relative;
    display: inline-block;
    margin: 0 -$choices-button-offset * 0.5 0 $choices-button-offset;
    padding-left: $choices-button-offset * 2;
    border-left: 1px solid color.adjust($choices-primary-color, $lightness: -10%);
    background-image: $choices-icon-cross;
    background-size: $choices-button-dimension;
    width: $choices-button-dimension;
    line-height: 1;
    opacity: 0.75;
    border-radius: 0;

    &:hover,
    &:focus {
      opacity: 1;
    }
  }
}



.#{$choices-selector}__inner {
  @extend .form-select;

  display: inline-block;
  vertical-align: top;
  width: 100%;
  background-color: $choices-bg-color;
  border: var(--bs-border-width) solid var(--bs-border-color);

  font-size: $choices-font-size-md;
  overflow: hidden;

  .is-open & {
    border-radius: $choices-border-radius $choices-border-radius 0 0;
  }

  .is-flipped.is-open & {
    border-radius: 0 0 $choices-border-radius $choices-border-radius;
  }
}

.#{$choices-selector}__list {
  margin: 0;
  padding-left: 0;
  list-style: none;

  &[aria-expanded] {
    @extend %choices-dropdown;
  }
}

.#{$choices-selector}__list--single {
  display: inline-block;
  width: 100%;

  [dir="rtl"] & {
    padding-right: 4px;
    padding-left: 16px;
  }
  .#{$choices-selector}__item {
    width: 100%;
  }
}

.#{$choices-selector}__list--multiple {
  display: inline;
  .#{$choices-selector}__item {
    display: inline-block;
    vertical-align: middle;
    border-radius: $choices-border-radius-item;
    padding: 4px 10px;
    font-size: $choices-font-size-sm;
    font-weight: 500;
    margin-right: 3.75px;
    margin-bottom: 3.75px;
    background-color: $choices-primary-color;
    border: 1px solid color.adjust($choices-primary-color, $lightness: -5%);
    color: #fff;
    word-break: break-all;
    box-sizing: border-box;

    &[data-deletable] {
      padding-right: 5px;
    }

    [dir="rtl"] & {
      margin-right: 0;
      margin-left: 3.75px;
    }

    &.is-highlighted {
      background-color: color.adjust($choices-primary-color, $lightness: -5%);
      border: 1px solid color.adjust($choices-primary-color, $lightness: -10%);
    }

    .is-disabled & {
      background-color: color.adjust($choices-disabled-color, $lightness: -25%);
      border: 1px solid color.adjust($choices-disabled-color, $lightness: -35%);
    }
  }
}

%choices-dropdown {
  visibility: hidden;
  z-index: $choices-z-index;
  position: absolute;
  width: 100%;
  background-color: $choices-bg-color-dropdown;
  border: 1px solid var(--bs-border-color);
  top: 0; // change to 100% to have it on the bottom of the input field
  margin-top: -1px;
  border-radius: $choices-border-radius;
  overflow: hidden;
  word-break: break-all;
  will-change: visibility;

  [data-type="select-multiple"] & {
    top: 100%;
  }

  &.is-active {
    visibility: visible;
  }

  .is-open & {
    border-color: $form-select-focus-border-color;
    border-top: 0;
    outline: 0;

    @if $enable-shadows {
      @include box-shadow($form-select-box-shadow, $form-select-focus-box-shadow);
    } @else {
      // Avoid using mixin so we can pass custom focus shadow properly
      box-shadow: $form-select-focus-box-shadow;
    }
  }

  .is-flipped & {
    top: auto;
    bottom: 100%;
    margin-top: 0;
    margin-bottom: -1px;
    border-radius: 0.25rem 0.25rem 0 0;
  }
  .#{$choices-selector}__list {
    position: relative;
    max-height: 300px;
    overflow: auto;
    -webkit-overflow-scrolling: touch;
    will-change: scroll-position;
  }
  .#{$choices-selector}__item {
    position: relative;
    padding: 10px;
    font-size: $choices-font-size-md;

    [dir="rtl"] & {
      text-align: right;
    }
  }
  .#{$choices-selector}__item--selectable {
    @media (min-width: 640px) {
      padding-right: 100px;

      &::after {
        content: attr(data-select-text);
        font-size: $choices-font-size-sm;
        opacity: 0;
        position: absolute;
        right: 10px;
        top: 50%;
        transform: translateY(-50%);
      }

      [dir="rtl"] & {
        text-align: right;
        padding-left: 100px;
        padding-right: 10px;

        &::after {
          right: auto;
          left: 10px;
        }
      }
    }

    &.is-highlighted {
      background-color: color.mix(#000, #fff, 5%);

      &::after {
        opacity: 0.5;
      }
    }
  }
}

.#{$choices-selector}__list--dropdown {
  @extend %choices-dropdown;
}

.#{$choices-selector}__item {
  cursor: default;
}

.#{$choices-selector}__item--selectable {
  cursor: pointer;
}

.#{$choices-selector}__item--disabled {
  cursor: not-allowed;
  user-select: none;
  opacity: 0.5;
}

.#{$choices-selector}__heading {
  font-weight: 600;
  //font-size: $choices-font-size-sm;
  padding: 10px;
  border-bottom: 1px solid color.adjust($choices-keyline-color, $lightness: 10%);
  color: color.adjust(#333, $lightness: 30%);
}

.#{$choices-selector}__button {
  text-indent: -9999px;
  appearance: none;
  border: 0;
  background-color: transparent;
  background-repeat: no-repeat;
  background-position: center;
  cursor: pointer;

  &:focus {
    outline: none;
  }
}

.#{$choices-selector}__input {
  display: inline-block;
  vertical-align: baseline;
  background-color: $choices-bg-color;
  font-size: $choices-font-size-md;
  margin-bottom: 5px;
  border: 0;
  border-radius: 0;
  max-width: 100%;
  padding: $form-select-padding-y $form-select-indicator-padding $form-select-padding-y $form-select-padding-x;

  &:focus {
    outline: 0;
  }

  &::-webkit-search-decoration,
  &::-webkit-search-cancel-button,
  &::-webkit-search-results-button,
  &::-webkit-search-results-decoration {
    display: none;
  }

  &::-ms-clear,
  &::-ms-reveal {
    display: none;
    width: 0;
    height: 0;
  }

  [dir="rtl"] & {
    padding-right: 2px;
    padding-left: 0;
  }
}

I realised this scss file for choices integration with bootstrap 5.3.
The file makes use as much as possible of already existing bootstrap mixins and variables.