// The original select2 bootstrap is overriden here to make it work with bootstrap 4 // using this // github.com/angel-vladov/select2-bootstrap-theme/blob/master/src/select2-bootstrap.scss // // We used this gist before: // gist.github.com/DaleMckeown/82995dcc482650f130a708f11a66a2a6

// // Functions // ————————————————–

/**

* We need a clone of bootstrap color-yiq mixin so we can get the same value for color
*/

@function bs4-color-yiq($color) {

$r: red($color);
$g: green($color);
$b: blue($color);

$yiq: (($r * 299) + ($g * 587) + ($b * 114)) / 1000;

@if ($yiq >= 150) {
  @return "#111";
} @else {
  @return "#fff";
}

}

// // Variables // ————————————————–

// Variables directly translating Bootstrap variables // ————————-

$s2bs-enable-shadows: $enable-shadows !default; $s2bs-border-radius-base: $border-radius !default; $s2bs-border-radius-large: $border-radius-lg !default; $s2bs-border-radius-small: $border-radius-sm !default; $s2bs-btn-default-bg: $input-group-addon-bg !default; // or $gray-200 $s2bs-btn-default-border: theme-color(“secondary”) !default; $s2bs-btn-default-color: bs4-color-yiq($s2bs-btn-default-bg) !default; $s2bs-caret-width-base: .25rem !default; // 4px $s2bs-caret-width-large: .3125rem !default; // 5px

$s2bs-cursor-disabled: not-allowed !default; $s2bs-dropdown-header-color: $dropdown-header-color !default; $s2bs-dropdown-link-active-bg: $dropdown-link-active-bg !default; $s2bs-dropdown-link-active-color: $dropdown-link-active-color !default; $s2bs-dropdown-link-disabled-color: $dropdown-link-disabled-color !default; $s2bs-dropdown-link-hover-bg: $dropdown-link-hover-bg !default; $s2bs-dropdown-link-hover-color: $dropdown-link-hover-color !default; $s2bs-font-size-base: $font-size-base !default; $s2bs-font-size-large: $font-size-lg !default; $s2bs-font-size-small: $font-size-sm !default;

@if variable-exists(input-font-size) {

// Added in Bootstrap 4.2
//noinspection SassScssUnresolvedVariable
$s2bs-font-size-base: $input-font-size !default;

}

@if variable-exists(input-font-size-lg) {

// Added in Bootstrap 4.2
//noinspection SassScssUnresolvedVariable
$s2bs-font-size-large: $input-font-size-lg !default;

}

@if variable-exists(input-font-size-sm) {

// Added in Bootstrap 4.2
//noinspection SassScssUnresolvedVariable
$s2bs-font-size-small: $input-font-size-sm !default;

}

$s2bs-padding-base-horizontal: $input-btn-padding-x !default; $s2bs-padding-large-horizontal: $input-btn-padding-x-lg !default; $s2bs-padding-small-horizontal: $input-btn-padding-x-sm !default; $s2bs-padding-base-vertical: $input-btn-padding-y !default; $s2bs-padding-large-vertical: $input-btn-padding-y-lg !default; $s2bs-padding-small-vertical: $input-btn-padding-y-sm !default; $s2bs-line-height-base: $input-btn-line-height !default; $s2bs-line-height-large: $input-btn-line-height !default; $s2bs-line-height-small: $input-btn-line-height !default; $s2bs-input-bg: $input-bg !default; $s2bs-input-bg-disabled: $input-disabled-bg !default; $s2bs-input-color: $input-color !default; $s2bs-input-color-placeholder: $input-placeholder-color !default; $s2bs-input-border: $input-border-color !default; $s2bs-input-border-focus: $input-focus-border-color !default; $s2bs-input-border-radius: $input-border-radius !default; $s2bs-input-height-base: $input-height !default; $s2bs-input-height-large: $input-height-lg !default; $s2bs-input-height-small: $input-height-sm !default; $s2bs-state-warning-text: theme-color(“warning”) !default; $s2bs-state-danger-text: $form-feedback-invalid-color !default; $s2bs-state-success-text: $form-feedback-valid-color !default;

// Theme-specific variables // ————————-

$s2bs-dropdown-arrow-color: $s2bs-input-color-placeholder !default; $s2bs-dropdown-box-shadow: 0 6px 12px rgba(0,0,0,.175) !default; $s2bs-dropdown-box-shadow-above: 0px -6px 12px rgba(0,0,0,.175) !default; $s2bs-clear-selection-color: $s2bs-dropdown-arrow-color !default; $s2bs-clear-selection-hover-color: $s2bs-btn-default-color !default; $s2bs-remove-choice-color: $s2bs-input-color-placeholder !default; $s2bs-remove-choice-hover-color: $s2bs-btn-default-color !default; $s2bs-selection-choice-border-radius: $s2bs-border-radius-base !default; $s2bs-dropdown-header-padding-vertical: $s2bs-padding-base-vertical !default; $s2bs-dropdown-header-font-size: $s2bs-font-size-small !default;

// Form control variables // ————————- $s2bs-form-control-box-shadow: $input-box-shadow !default; $s2bs-form-control-focus-box-shadow: $input-focus-box-shadow !default; $s2bs-form-control-transition: $input-transition !default;

// // Mixins // ————————————————–

// @see github.com/twbs/bootstrap/blob/v4.0.0/scss/_forms.scss#L8 @mixin bootstrap-input-defaults {

@include box-shadow($s2bs-form-control-box-shadow);
@include border-radius($s2bs-input-border-radius);
@include transition($s2bs-form-control-transition);
background-color: $s2bs-input-bg;
border: 1px solid $s2bs-input-border;
color: $s2bs-input-color;
font-size: $s2bs-font-size-base;

}

// @see getbootstrap.com/docs/4.0/components/forms/#validation // @see github.com/twbs/bootstrap-sass/blob/master/assets/stylesheets/bootstrap/_forms.scss#L388 @mixin validation-state-focus($color) {

$shadow: inset 0 1px 1px rgba(0,0,0,.075), 0 0 6px lighten($color, 20%);

.select2-dropdown,
.select2-selection {
  border-color: $color;
}

.select2-container--focus .select2-selection,
.select2-container--open .select2-selection {
  @include box-shadow($shadow);
  border-color: darken($color, 10%);

  &:focus {
    box-shadow: 0 0 0 .2rem rgba($color,.25);
  }
}

&.select2-drop-active {
  border-color: darken($color, 10%);

  &.select2-drop.select2-drop-above {
    border-top-color: darken($color, 10%);
  }
}

}

// dropdown arrow when dropdown is open @mixin dropdown-arrow {

.select2-selection--single {
  /**
   * Make the dropdown arrow point up while the dropdown is visible.
   */

  .select2-selection__arrow b {
    border-color: transparent transparent $s2bs-dropdown-arrow-color transparent;
    border-width: 0 $s2bs-caret-width-large $s2bs-caret-width-large $s2bs-caret-width-large;
  }
}

}

.select2-container–bootstrap {

display: block;

/*------------------------------------*\
    #COMMON STYLES
\*------------------------------------*/

.select2-selection {
  @include bootstrap-input-defaults;
  outline: 0;

  &.form-control {
    @include border-radius($s2bs-border-radius-base);
  }
}

/**
 * Search field in the Select2 dropdown.
 */

.select2-search--dropdown {
  .select2-search__field {
    @include bootstrap-input-defaults;
  }
}

/**
 * No outline for all search fields - in the dropdown
 * and inline in multi Select2s.
 */

.select2-search__field {
  outline: 0;

  &::-webkit-input-placeholder {
    color: $s2bs-input-color-placeholder;
  }

  /* Firefox 18- */
  &:-moz-placeholder {
    color: $s2bs-input-color-placeholder;
  }

  /**
   * Firefox 19+
   *
   * @see http://stackoverflow.com/questions/24236240/color-for-styled-placeholder-text-is-muted-in-firefox
   */
  &::-moz-placeholder {
    color: $s2bs-input-color-placeholder;
    opacity: 1;
  }

  &:-ms-input-placeholder {
    color: $s2bs-input-color-placeholder;
  }
}

/**
 * Adjust Select2's choices hover and selected styles to match
 * Bootstrap 4's default dropdown styles.
 *
 * @see https://getbootstrap.com/docs/4.0/components/dropdowns/
 */

.select2-results__option {
  padding: $s2bs-padding-base-vertical $s2bs-padding-base-horizontal;

  &[role=group] {
    padding: 0;
  }

  /**
   * Disabled results.
   *
   * @see https://select2.github.io/examples.html#disabled-results
   */

  &[aria-disabled=true] {
    color: $s2bs-dropdown-link-disabled-color;
    cursor: $s2bs-cursor-disabled;
  }

  /**
   * Hover state.
   */

  &[aria-selected=true] {
    background-color: $s2bs-dropdown-link-hover-bg;
    color: $s2bs-dropdown-link-hover-color;
  }

  /**
   * Selected state.
   */

  &--highlighted[aria-selected] {
    background-color: $s2bs-dropdown-link-active-bg;
    color: $s2bs-dropdown-link-active-color;
  }

  .select2-results__option {
    padding: $s2bs-padding-base-vertical $s2bs-padding-base-horizontal;

    .select2-results__group {
      padding-left: 0;
    }

    .select2-results__option {
      margin-left: -$s2bs-padding-base-horizontal;
      padding-left: $s2bs-padding-base-horizontal*2;

      .select2-results__option {
        margin-left: -$s2bs-padding-base-horizontal*2;
        padding-left: $s2bs-padding-base-horizontal*3;

        .select2-results__option {
          margin-left: -$s2bs-padding-base-horizontal*3;
          padding-left: $s2bs-padding-base-horizontal*4;

          .select2-results__option {
            margin-left: -$s2bs-padding-base-horizontal*4;
            padding-left: $s2bs-padding-base-horizontal*5;

            .select2-results__option {
              margin-left: -$s2bs-padding-base-horizontal*5;
              padding-left: $s2bs-padding-base-horizontal*6;
            }
          }
        }
      }
    }
  }
}

.select2-results__group {
  color: $s2bs-dropdown-header-color;
  display: block;
  padding: $s2bs-dropdown-header-padding-vertical $s2bs-padding-base-horizontal;
  font-size: $s2bs-dropdown-header-font-size;
  line-height: $s2bs-line-height-base;
  white-space: nowrap;
}

&.select2-container--focus,
&.select2-container--open {
  .select2-selection {
    border-color: $s2bs-input-border-focus;

    @if $s2bs-enable-shadows {
      box-shadow: $s2bs-form-control-box-shadow, $s2bs-form-control-focus-box-shadow;
    } @else {
      box-shadow: $s2bs-form-control-focus-box-shadow;
    }
  }
}

&.select2-container--open {
  /**
   * Make the dropdown arrow point up while the dropdown is visible.
   */

  .select2-selection .select2-selection__arrow b {
    border-color: transparent transparent $s2bs-dropdown-arrow-color transparent;
    border-width: 0 $s2bs-caret-width-base $s2bs-caret-width-base $s2bs-caret-width-base;
  }

  /**
   * Handle border radii of the container when the dropdown is showing.
   */

  &.select2-container--below {
    .select2-selection {
      @include border-bottom-radius(0);
      border-bottom-color: transparent;
      box-shadow: none;
    }
  }

  &.select2-container--above {
    .select2-selection {
      @include border-top-radius(0);
      border-top-color: transparent;
      box-shadow: none;
    }
  }
}

/**
 * Clear the selection.
 */

.select2-selection__clear {
  color: $s2bs-clear-selection-color;
  cursor: pointer;
  float: right;
  font-weight: bold;
  margin-right: 10px;

  &:hover {
    color: $s2bs-clear-selection-hover-color;
  }
}

/**
 * Address disabled Select2 styles.
 *
 * @see https://select2.github.io/examples.html#disabled
 * @see hhttps://getbootstrap.com/docs/4.0/components/forms/#disabled-forms
 */

&.select2-container--disabled {
  .select2-selection {
    border-color: $s2bs-input-border;
    @include box-shadow(none);
  }

  .select2-selection,
  .select2-search__field {
    cursor: $s2bs-cursor-disabled;
  }

  .select2-selection,
  .select2-selection--multiple .select2-selection__choice {
    background-color: $s2bs-input-bg-disabled;
  }

  .select2-selection__clear,
  .select2-selection--multiple .select2-selection__choice__remove {
    display: none;
  }
}

/*------------------------------------*\
    #DROPDOWN
\*------------------------------------*/

/**
 * Dropdown border color and box-shadow.
 */

.select2-dropdown {
  @include box-shadow($s2bs-dropdown-box-shadow);
  border-color: $s2bs-input-border-focus;
  overflow-x: hidden;
  margin-top: -1px;

  &--above {
    @include box-shadow($s2bs-dropdown-box-shadow-above);
    margin-top: 1px;
  }
}

/**
 * Limit the dropdown height.
 */

.select2-results > .select2-results__options {
  max-height: 200px;
  overflow-y: auto;
}

/*------------------------------------*\
    #SINGLE SELECT2
\*------------------------------------*/

.select2-selection--single {
  height: $s2bs-input-height-base;
  line-height: $s2bs-line-height-base;
  padding: $s2bs-padding-base-vertical ($s2bs-padding-base-horizontal + $s2bs-caret-width-base*3) $s2bs-padding-base-vertical $s2bs-padding-base-horizontal;

  /**
   * Adjust the single Select2's dropdown arrow button appearance.
   */

  .select2-selection__arrow {
    position: absolute;
    bottom: 0;
    right: $s2bs-padding-base-horizontal / 2;
    top: 0;
    width: $s2bs-caret-width-base;

    b {
      border-color: $s2bs-dropdown-arrow-color transparent transparent transparent;
      border-style: solid;
      border-width: $s2bs-caret-width-base $s2bs-caret-width-base 0 $s2bs-caret-width-base;
      height: 0;
      left: 0;
      margin-left: -$s2bs-caret-width-base;
      margin-top: -$s2bs-caret-width-base/2;
      position: absolute;
      top: 50%;
      width: 0;
    }
  }

  .select2-selection__rendered {
    color: $s2bs-input-color;
    padding: 0;
  }

  .select2-selection__placeholder {
    color: $s2bs-input-color-placeholder;
  }
}

/*------------------------------------*\
  #MULTIPLE SELECT2
\*------------------------------------*/

.select2-selection--multiple {
  min-height: $s2bs-input-height-base;
  padding: 0;
  height: auto;

  .select2-selection__rendered {
    box-sizing: border-box;
    display: block;
    line-height: $s2bs-line-height-base;
    list-style: none;
    margin: 0;
    overflow: hidden;
    padding: 0;
    width: 100%;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .select2-selection__placeholder {
    color: $s2bs-input-color-placeholder;
    float: left;
    margin-top: 5px;
  }

  /**
   * Make Multi Select2's choices match Bootstrap 4's default button styles.
   */

  .select2-selection__choice {
    color: $s2bs-input-color;
    background: $s2bs-btn-default-bg;
    border: 1px solid $s2bs-btn-default-border;
    border-radius: $s2bs-selection-choice-border-radius;
    cursor: default;
    float: left;
    margin: calc(#{$s2bs-padding-base-vertical} - 1px) 0 0 $s2bs-padding-base-horizontal/2;
    padding: 0 $s2bs-padding-base-vertical;
  }

  /**
   * Minus 2px borders.
   */

  .select2-search--inline {
    .select2-search__field {
      background: transparent;
      padding: 0 $s2bs-padding-base-horizontal;
      height: $s2bs-input-height-base;
      line-height: $s2bs-line-height-base;
      margin: -$border-width 0; // Compensate for input borders included in height
      min-width: 5em;
    }
  }

  .select2-selection__choice__remove {
    color: $s2bs-remove-choice-color;
    cursor: pointer;
    display: inline-block;
    font-weight: bold;
    margin-right: $s2bs-padding-base-vertical / 2;

    &:hover {
      color: $s2bs-remove-choice-hover-color;
    }
  }

  /**
   * Clear the selection.
   */

  .select2-selection__clear {
    margin-top: $s2bs-padding-base-vertical;
  }
}

/**
 * Address Bootstrap control sizing classes
 *
 * 1. Reset Bootstrap defaults.
 * 2. Adjust the dropdown arrow button icon position.
 *
 * @see https://getbootstrap.com/docs/4.0/components/forms/#sizing
 */

/* 1 */
.select2-selection--single.form-control-sm,
.input-group-sm & .select2-selection--single,
.form-group-sm & .select2-selection--single {
  @include border-radius($s2bs-border-radius-small);
  font-size: $s2bs-font-size-small;
  height: $s2bs-input-height-small;
  line-height: $s2bs-line-height-small;
  padding: $s2bs-padding-small-vertical $s2bs-padding-small-horizontal + $s2bs-caret-width-base*3 $s2bs-padding-small-vertical $s2bs-padding-small-horizontal;

  /* 2 */
  .select2-selection__arrow b {
    margin-left: -$s2bs-padding-small-vertical;
  }
}

.select2-selection--multiple.form-control-sm,
.input-group-sm & .select2-selection--multiple,
.form-group-sm & .select2-selection--multiple {
  @include border-radius($s2bs-border-radius-small);
  min-height: $s2bs-input-height-small;

  .select2-selection__choice {
    font-size: $s2bs-font-size-small;
    line-height: $s2bs-line-height-small;
    margin: calc(#{$s2bs-padding-small-vertical} - 1px) 0 0 $s2bs-padding-small-horizontal/2;
    padding: 0 $s2bs-padding-small-vertical;
  }

  .select2-search--inline .select2-search__field {
    padding: 0 $s2bs-padding-small-horizontal;
    font-size: $s2bs-font-size-small;
    height: $s2bs-input-height-small;
    line-height: $s2bs-line-height-small;
  }

  .select2-selection__clear {
    margin-top: $s2bs-padding-small-vertical;
  }
}

.select2-selection--single.form-control-lg,
.input-group-lg & .select2-selection--single,
.form-group-lg & .select2-selection--single {
  @include border-radius($s2bs-border-radius-large);
  font-size: $s2bs-font-size-large;
  height: $s2bs-input-height-large;
  line-height: $s2bs-line-height-large;
  padding: $s2bs-padding-large-vertical $s2bs-padding-large-horizontal + $s2bs-caret-width-large*3 $s2bs-padding-large-vertical $s2bs-padding-large-horizontal;

  /* 1 */
  .select2-selection__arrow {
    width: $s2bs-caret-width-large;

    b {
      border-width: $s2bs-caret-width-large $s2bs-caret-width-large 0 $s2bs-caret-width-large;
      margin-left: -$s2bs-caret-width-large;
      margin-left: -$s2bs-padding-large-vertical;
      margin-top: -$s2bs-caret-width-large/2;
    }
  }
}

.select2-selection--multiple.form-control-lg,
.input-group-lg & .select2-selection--multiple,
.form-group-lg & .select2-selection--multiple {
  min-height: $s2bs-input-height-large;
  border-radius: $s2bs-border-radius-large;

  .select2-selection__choice {
    font-size: $s2bs-font-size-large;
    line-height: $s2bs-line-height-large;
    border-radius: $s2bs-selection-choice-border-radius;
    margin: calc(#{$s2bs-padding-large-vertical} - 1px) 0 0 $s2bs-padding-large-horizontal/2;
    padding: 0 $s2bs-padding-large-vertical;
  }

  .select2-search--inline .select2-search__field {
    padding: 0 $s2bs-padding-large-horizontal;
    font-size: $s2bs-font-size-large;
    height: $s2bs-input-height-large;
    line-height: $s2bs-line-height-large;
  }

  .select2-selection__clear {
    margin-top: $s2bs-padding-large-vertical;
  }
}

.select2-selection.form-control-lg.select2-container--open {
  @include dropdown-arrow;
}

.input-group-lg & .select2-selection {
  &.select2-container--open {
    @include dropdown-arrow;
  }
}

/*------------------------------------*\
  #RTL SUPPORT
\*------------------------------------*/

&[dir="rtl"] {

  /**
   * Single Select2
   *
   * 1. Makes sure that .select2-selection__placeholder is positioned
   *    correctly.
   */

  .select2-selection--single {
    padding-left: $s2bs-padding-base-horizontal + $s2bs-caret-width-base*3;
    padding-right: $s2bs-padding-base-horizontal;

    .select2-selection__rendered {
      padding-right: 0;
      padding-left: 0;
      text-align: right; /* 1 */
    }

    .select2-selection__clear {
      float: left;
    }

    .select2-selection__arrow {
      left: $s2bs-padding-base-horizontal;
      right: auto;

      b {
        margin-left: 0;
      }
    }
  }

  /**
   * Multiple Select2
   */

  .select2-selection--multiple {
    .select2-selection__choice,
    .select2-selection__placeholder,
    .select2-search--inline {
      float: right;
    }

    .select2-selection__choice {
      margin-left: 0;
      margin-right: $s2bs-padding-base-horizontal/2;
    }

    .select2-selection__choice__remove {
      margin-left: 2px;
      margin-right: auto;
    }
  }
}

.select2-dropdown[dir="rtl"] {
  .select2-results__options {
    text-align: right;
  }
}

}

/————————————\

#ADDITIONAL GOODIES

*————————————*/

/**

* Address Bootstrap's validation states
*
* If a Select2 widget parent has one of Bootstrap's validation state modifier
* classes, adjust Select2's border colors and focus states accordingly.
* You may apply said classes to the Select2 dropdown (body > .select2-container)
* via JavaScript match Bootstraps' to make its styles match.
*
* @see https://getbootstrap.com/docs/4.0/components/forms/#validation
*/

.is-valid {

@include validation-state-focus($s2bs-state-success-text);

}

.is-invalid {

@include validation-state-focus($s2bs-state-danger-text);

}

/* Validation classes on parent element. Preserved Bootstrap 3 validation classes */

.has-warning {

@include validation-state-focus($s2bs-state-warning-text);

}

.has-error {

@include validation-state-focus($s2bs-state-danger-text);

}

.has-success {

@include validation-state-focus($s2bs-state-success-text);

}

/**

* Select2 widgets in Bootstrap Input Groups
*
* @see https://getbootstrap.com/docs/4.0/components/input-group/
* @see https://github.com/twbs/bootstrap/blob/v4.0.0-beta.2/scss/_input-group.scss
*/

/**

* Reset rounded corners
*/

.input-group > .select2-hidden-accessible {

&:first-child + .select2-container--bootstrap > .selection > .select2-selection,
&:first-child + .select2-container--bootstrap > .selection > .select2-selection.form-control {
  @include border-right-radius(0);
}

&:not(:first-child) + .select2-container--bootstrap:not(:last-child) > .selection > .select2-selection,
&:not(:first-child) + .select2-container--bootstrap:not(:last-child) > .selection > .select2-selection.form-control {
  border-radius: 0;
}

&:not(:first-child):not(:last-child) + .select2-container--bootstrap:last-child > .selection > .select2-selection,
&:not(:first-child):not(:last-child) + .select2-container--bootstrap:last-child > .selection > .select2-selection.form-control {
  @include border-left-radius(0);
}

}

.input-group > .select2-container–bootstrap {

flex: 1 1 auto;
position: relative;
z-index: 2;
width: 1%;
margin-bottom: 0;

> .selection {
  display: flex;
  flex: 1 1 auto;

  > .select2-selection.form-control {
    float: none;
  }
}

/**
 * Adjust z-index like Bootstrap does to show the focus-box-shadow
 * above appended buttons in .input-group and .form-group.
 */

&.select2-container--open, /* .form-group */
&.select2-container--focus /* .input-group */ {
  z-index: 3;
}

/**
 * Adjust alignment of Bootstrap buttons in Bootstrap Input Groups to address
 * Multi Select2's height which - depending on how many elements have been selected -
 * may grow taller than its initial size.
 *
 * @see https://github.com/twbs/bootstrap/blob/v4.0.0-beta.2/scss/_input-group.scss
 */

&,
.input-group-append,
.input-group-prepend,
.input-group-append .btn,
.input-group-prepend .btn {
  vertical-align: top;
}

}

/**

* Temporary fix for https://github.com/select2/select2-bootstrap-theme/issues/9
*
* Provides `!important` for certain properties of the class applied to the
* original `<select>` element to hide it.
*
* @see https://github.com/select2/select2/pull/3301
* @see https://github.com/fk/select2/commit/31830c7b32cb3d8e1b12d5b434dee40a6e753ada
*/

.form-control.select2-hidden-accessible {

position: absolute !important;
width: 1px !important;

}

/**

* Display override for inline forms
*/

.form-inline .select2-container–bootstrap {

@include media-breakpoint-up(sm) {
  display: inline-block;
}

}