.dropdown {
  position: relative;

  // Once the new design (https://gitlab.com/gitlab-org/gitlab-foss/-/issues/63499/designs)
  // for Snippets is introduced and Clone button is relocated, we won't
  // need this style.
  // Issue for the refactoring: https://gitlab.com/gitlab-org/gitlab/-/issues/213327
  &.gl-dropdown button.dropdown-toggle {
    @include gl-display-inline-flex;
  }

  .btn-link {
    &:hover {
      cursor: pointer;
    }
  }
}

@mixin set-visible {
  transform: translateY(0);
  display: block;
}

@mixin set-invisible {
  transform: translateY(-10px);
  display: none;
}

.show.dropdown {
  .dropdown-menu {
    @include set-visible;
    min-height: $dropdown-min-height;
    // Prevents double scrollbar on dropdowns that also
    // have max-height set on an inner scrollable element
    max-height: $dropdown-max-height-lg;
    overflow-y: auto;

    &.dropdown-extended-height {
      $extended-max-height: 400px;

      max-height: $extended-max-height;

      // See comment below for explanation
      .gl-dropdown-inner {
        max-height: $extended-max-height - 2px;
      }
    }

    &.dropdown-reduced-height {
      max-height: $dropdown-max-height;
    }

    @include media-breakpoint-down(xs) {
      width: 100%;
    }

    // `GlDropdown` specifies the `max-height` of `.gl-dropdown-inner`
    // as `$dropdown-max-height`, but the `max-height` rule above forces
    // the parent `.dropdown-menu` to be _slightly_ too small because of
    // the 1px borders. The workaround below overrides the @gitlab/ui style
    // to avoid a double scroll bar.
    .gl-dropdown-inner {
      max-height: $dropdown-max-height - 2px;
    }
  }

  .dropdown-toggle,
  .dropdown-menu-toggle {
    border-color: $gray-darkest;
  }

  [data-toggle='dropdown'] {
    outline: 0;
  }
}

.dropdown-toggle,
.dropdown-menu-toggle,
.dropdown-menu-close {
  &:active,
  &:focus {
    @include gl-focus;
  }
}

// Get search dropdown to line up with other nav dropdowns
.search-input-container .dropdown-menu {
  margin-top: 11px;
}

.dropdown-toggle,
.dropdown-menu-toggle,
.confidential-merge-request-fork-group .dropdown-toggle {
  padding: 6px 8px 6px 10px;
  background-color: $white;
  color: $gl-text-color;
  font-size: 14px;
  text-align: left;
  border: 1px solid $gray-200;
  border-radius: $border-radius-base;
  white-space: nowrap;

  &:disabled.read-only {
    color: $gl-text-color !important;
  }

  &.no-outline {
    outline: 0;
  }

  &.large {
    width: 200px;
  }

  &.wide {
    width: 100%;

    + .dropdown-select {
      width: 100%;
    }
  }

  // Allows dynamic-width text in the dropdown toggle.
  // Resizes to allow long text without overflowing the container.
  &.dynamic {
    width: auto;
    min-width: 160px;
    max-width: 100%;
    padding-right: 25px;
  }

  &:hover {
    border-color: $gray-darkest;
  }

  &:focus:active {
    border-color: $dropdown-toggle-active-border-color;
    outline: 0;
  }
}

// This is double classed to solve a specificity issue with the gitlab ui buttons
.dropdown-menu-toggle.dropdown-menu-toggle {
  justify-content: flex-start;
  overflow: hidden;
  padding-top: #{$gl-padding-8 - 1};
  padding-bottom: #{$gl-padding-8 - 1};
  padding-right: 25px;
  position: relative;
  text-overflow: ellipsis;
  line-height: $gl-line-height;
  width: 160px;

  &:hover {
    @include gl-inset-border-1-gray-400;
  }

  &:hover,
  &:focus {
    background-color: $gray-50;
    border-color: $gray-400;
  }

  .gl-spinner {
    position: absolute;
    top: 9px;
    right: 8px;
  }

  .dropdown-menu-toggle-icon {
    position: absolute;
    right: $gl-padding-8;
    color: $gray-500;
  }
}

.labels {
  // Prevent double scroll-bars for labels dropdown.
  .dropdown-menu-toggle.wide + .dropdown-select {
    max-height: unset;
  }
}

.gl-dropdown .dropdown-menu-toggle {
  padding-right: $gl-padding-8;

  .gl-dropdown-toggle-text {
    min-height: $gl-line-height-20;
  }
}

@mixin dropdown-item-hover {
  background-color: $gray-darker;
  color: $gl-text-color;
  outline: 0;
}

@mixin dropdown-link {
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  display: block;
  font-weight: $gl-font-weight-normal;
  position: relative;
  padding: $dropdown-item-padding-y $dropdown-item-padding-x;
  color: $gl-text-color;
  line-height: $gl-btn-line-height;
  white-space: normal;
  overflow: hidden;
  text-align: left;
  width: 100%;

  &.disable-hover {
    text-decoration: none;
  }

  &:not(.disable-hover):hover,
  &:active,
  &:focus,
  &.is-focused {
    @include dropdown-item-hover;

    text-decoration: none;
  }

  &:active,
  &:focus,
  &:focus:active,
  &.is-focused {
    @include gl-focus($inset: true);
  }

  &.dropdown-menu-user-link {
    line-height: 16px;
    padding-top: 10px;
    padding-bottom: 7px;
    white-space: nowrap;

    .dropdown-menu-user-username {
      display: block;
    }
  }

  .icon-play {
    fill: $gl-text-color-secondary;
    margin-right: 6px;
    height: 12px;
    width: 11px;
  }
}

.dropdown-menu {
  display: none;
  position: absolute;
  width: auto;
  top: 100%;
  z-index: $zindex-dropdown-menu;
  min-width: 240px;
  max-width: 500px;
  margin-top: $dropdown-vertical-offset;
  margin-bottom: 24px;
  font-size: 0.875rem;
  font-weight: $gl-font-weight-normal;
  padding: 8px 0;
  background-color: $white;
  border: 1px solid $border-color;
  border-radius: $border-radius-base;
  box-shadow: 0 2px 4px $dropdown-shadow-color;

  &.dropdown-open-top {
    margin-bottom: $dropdown-vertical-offset;
  }

  &.dropdown-open-left {
    right: 0;
    left: auto;
  }

  &.is-loading {
    .dropdown-content {
      display: none;
    }

    .dropdown-loading {
      display: block;
    }
  }

  ul {
    margin: 0;
    padding: 0;
  }

  li {
    display: block;
    text-align: left;
    list-style: none;

    > a,
    > button,
    .gl-button.btn-link,
    .menu-item {
      @include dropdown-link;
    }
  }

  .divider {
    height: 1px;
    margin: #{$grid-size / 2} 0;
    padding: 0;
    background-color: $dropdown-divider-bg;

    &:hover {
      background-color: $dropdown-divider-bg;
    }
  }

  .separator {
    width: 100%;
    height: 1px;
    margin-top: 8px;
    margin-bottom: 8px;
    background-color: $dropdown-divider-bg;
  }

  .dropdown-menu-empty-item a {
    &:hover,
    &:focus {
      background-color: transparent;
    }
  }

  .dropdown-header {
    color: $black;
    font-size: 13px;
    font-weight: $gl-font-weight-bold;
    line-height: $gl-line-height;
    padding: $dropdown-item-padding-y $dropdown-item-padding-x;
  }

  &.capitalize-header .dropdown-header {
    text-transform: capitalize;
  }

  .dropdown-bold-header {
    font-weight: $gl-font-weight-bold;
    line-height: $gl-line-height;
    padding: $dropdown-item-padding-y $dropdown-item-padding-x;
  }

  .unclickable {
    cursor: not-allowed;
    padding: 5px 8px;
    color: $gl-text-color-secondary;
  }

  .badge.badge-pill + span:not(.badge):not(.badge-pill) {
    // Expects up to 3 digits on the badge
    margin-right: 40px;
  }

  .dropdown-menu-content {
    padding: $dropdown-item-padding-y $dropdown-item-padding-x;
  }
}

.dropdown-item {
  @include dropdown-link;
}

.droplab-dropdown {
  .dropdown-toggle > i,
  .dropdown-toggle > svg {
    pointer-events: none;
  }

  .dropdown-menu {
    display: none;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);

    li {
      cursor: pointer;

      &.droplab-item-active button {
        @include dropdown-item-hover;
      }

      > a,
      > button,
      > .gl-button {
        display: flex;
        justify-content: flex-start;
        margin: 0;
        text-align: left;
        text-overflow: inherit;
      }

      > button.dropdown-epic-button {
        flex-direction: column;

        .reference {
          color: $gray-300;
          margin-top: $gl-padding-4;
        }
      }

      &.droplab-item-selected i,
      &.droplab-item-selected svg {
        visibility: visible;
      }

      .icon {
        visibility: hidden;
      }

      .description {
        display: inline-block;
        white-space: normal;
        margin-left: 5px;

        p {
          margin-bottom: 0;
        }
      }
    }
  }

  .icon {
    display: inline-block;
    vertical-align: top;
    padding-top: 2px;
  }
}

.comment-type-dropdown.show .dropdown-menu {
  display: block;
}

.filtered-search-box-input-container {
  .dropdown-menu {
    max-width: 280px;
  }
}

.dropdown-menu-large {
  width: 340px;
}

.dropdown-menu-full-width {
  width: 100%;
}

.dropdown-menu-paging {
  .dropdown-page-two,
  .dropdown-menu-back {
    display: none;
  }

  &.is-page-two {
    .dropdown-page-one {
      display: none;
    }

    .dropdown-page-two,
    .dropdown-menu-back {
      display: block;
    }

    .dropdown-content {
      padding: 0 10px;
    }
  }
}

.dropdown-menu-user {
  .avatar {
    float: left;
    width: 2 * $gl-padding;
    height: 2 * $gl-padding;
    margin: 0 10px 0 0;
  }

  .sidebar-participant {
    .merge-icon {
      top: calc(50% + 5px);
      left: 3rem;
    }
  }
}

.dropdown-menu-user-full-name {
  display: block;
  font-weight: $gl-font-weight-normal;
  line-height: 16px;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}

.dropdown-menu-user-username {
  display: block;
  line-height: 16px;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}

.dropdown-select {
  width: $dropdown-width;

  @include media-breakpoint-down(sm) {
    width: 100%;
  }
}

.dropdown-menu-selectable {
  li {
    a,
    button,
    .dropdown-item:not(.open-with-link) {
      padding: 8px 40px;
      position: relative;

      &.is-indeterminate,
      &.is-active {
        color: $gl-text-color;

        &.dropdown-menu-user-link::before {
          top: 50%;
          transform: translateY(-50%);
        }
      }

      &.is-indeterminate::before {
        position: absolute;
        left: 16px;
        top: 16px;
        transform: translateY(-50%);
        font-style: normal;
        font-size: inherit;
        text-rendering: auto;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        content: '—';
      }

      &.is-active {
        position: relative;

        &::before {
          content: '';
          display: block;
          position: absolute;
          top: 0.5rem;
          left: 1rem;
          width: 1rem;
          height: 1rem;
          mask-image: asset_url('icons-stacked.svg#check');
          mask-repeat: no-repeat;
          mask-size: cover;
          mask-position: center center;
          background: $black-normal;
        }
      }
    }
  }
}

.dropdown-title {
  position: relative;
  padding: $dropdown-item-padding-y $dropdown-item-padding-x;
  padding-bottom: #{2 * $dropdown-item-padding-y};
  margin-bottom: $dropdown-item-padding-y;
  font-weight: $gl-font-weight-bold;
  line-height: 1;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
  border-bottom: 1px solid $dropdown-divider-bg;
  overflow: hidden;
}

.dropdown-title-button {
  padding: 0;
  color: $dropdown-title-btn-color;
  border: 0;
  background: none;
  outline: 0;

  &:hover {
    color: darken($dropdown-title-btn-color, 15%);
  }
}

.dropdown-menu-back {
  left: 10px;
  top: $gl-padding-8;
}

.dropdown-input {
  position: relative;
  margin-bottom: 10px;
  padding: 0 10px;

  .input-icon,
  .dropdown-input-clear,
  .dropdown-input-search {
    position: absolute;
    top: $gl-padding-8;
    right: 20px;
    color: $gray-500;
    font-size: 12px;
    pointer-events: none;
  }

  .dropdown-input-clear {
    display: none;
    cursor: pointer;
    pointer-events: all;
    top: $gl-padding-8;
    font-size: 14px;

    &:not(.gl-icon) {
      right: 22px;
    }
  }

  &.has-value {
    .dropdown-input-clear {
      display: block;
    }

    .dropdown-input-search {
      display: none;
    }
  }
}

.dropdown-input-field,
.default-dropdown-input {
  background-color: $input-bg;
  display: block;
  width: 100%;
  min-height: 30px;
  @include gl-py-0;
  @include gl-px-3;
  color: $gray-700;
  line-height: 30px;
  border: 1px solid $gray-400;
  @include gl-rounded-base;
  outline: 0;

  &:focus {
    @include gl-focus;
  }

  &:hover {
    ~ .dropdown-input-clear {
      color: $gray-700;
    }
  }
}

.dropdown-content {
  max-height: 252px;
  overflow-y: auto;
}

.dropdown-info-note {
  color: $gl-text-color-secondary;
  text-align: center;
}

.dropdown-footer {
  padding-top: 10px;
  margin-top: 10px;
  font-size: 13px;
  border-top: 1px solid $dropdown-divider-bg;
}

.dropdown-footer-content {
  padding-left: 10px;
  padding-right: 10px;
}

.dropdown-footer-list {
  font-size: 14px;

  a {
    cursor: pointer;
    padding-left: 10px;
  }
}

.dropdown-create-new-item-button {
  @include dropdown-link;

  width: 100%;
  background-color: transparent;
  border: 0;
  text-align: left;
  text-overflow: ellipsis;
}

.dropdown-loading {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  display: none;
  z-index: 9;
  background-color: $dropdown-loading-bg;
  font-size: 28px;
}

.dropdown-label-box {
  margin-right: $gl-spacing-scale-3;
  margin-top: $gl-spacing-scale-2;
  display: inline-block;
  width: $gl-spacing-scale-5;
  height: $gl-spacing-scale-3;
  border-radius: $border-radius-base;
  border: 1px solid var(--white, $white);
}

.git-revision-dropdown {
  .dropdown-content {
    max-height: 215px;
  }
}

.sidebar-move-issue-dropdown {
  .dropdown-content {
    max-height: 160px;
  }
}

.dropdown-menu-author {
  .dropdown-content {
    max-height: 215px;
  }
}

.dropdown-menu-labels {
  .dropdown-content {
    max-height: 128px;
  }
}

.dropdown-menu-inner-title {
  display: block;
  color: $gl-text-color;
  font-weight: $gl-font-weight-bold;
}

.dropdown-menu-inner-content {
  display: block;
  color: $gl-text-color-secondary;
}

.dropdown-toggle-text {
  &.is-default {
    color: $gl-text-color-secondary;
  }
}

.pika-single.animate-picker.is-bound,
.pika-single.animate-picker.is-bound.is-hidden {
  /*
   * Having `!important` is not recommended but
   * since `pikaday` sets positioning inline
   * there's no way it can be gracefully overridden
   * using config options.
   */
  position: absolute !important;
  display: block;
}

.pika-single.animate-picker.is-bound {
  @include set-visible;

  &.is-hidden {
    @include set-invisible;
    overflow: hidden;
  }
}

@include media-breakpoint-down(xs) {
  .navbar-gitlab {
    li.dropdown {
      position: static;

      &.user-counter {
        margin-left: 8px !important;

        > a {
          padding: 0 4px !important;
        }
      }
    }
  }

  header.navbar-gitlab .dropdown {
    .dropdown-menu {
      width: 100%;
      min-width: 100%;
    }
  }

  header.navbar-gitlab-new .header-content .dropdown {
    .dropdown-menu {
      left: 0;
      min-width: 100%;
    }
  }
}

.frequent-items-dropdown-container {
  display: flex;
  flex-direction: row;
  height: $grid-size * 40;

  .frequent-items-dropdown-content {
    @include gl-pt-3;
  }

  .loading-animation {
    color: $almost-black;
  }

  .frequent-items-dropdown-content {
    position: relative;
    width: 70%;
  }

  .section-header,
  .frequent-items-list-container li.section-empty {
    color: $gl-text-color-secondary;
    font-size: $gl-font-size;
  }

  .frequent-items-list-container {
    padding: 8px 0;
    overflow-y: auto;

    li.section-empty.section-failure {
      color: $red-700;
    }

    .frequent-items-list-item-container .gl-button {
      &:active,
      &:focus,
      &:focus:active,
      &.is-focused {
        @include gl-focus($inset: true);
      }
    }
  }

  .section-header {
    font-weight: 700;
    margin-top: 8px;
  }
}

.frequent-items-list-item-container {
  .frequent-items-item-metadata-container {
    display: flex;
    flex-shrink: 0;
    flex-direction: column;
    justify-content: center;
  }

  .frequent-items-item-title,
  .frequent-items-item-namespace {
    max-width: 220px;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
  }

  .frequent-items-item-title {
    font-size: $gl-font-size;
    font-weight: 400;
    line-height: 16px;
  }

  .frequent-items-item-namespace {
    margin-top: 4px;
    font-size: 12px;
    line-height: 12px;
    color: $gl-text-color-secondary;
  }

  @include media-breakpoint-down(xs) {
    .frequent-items-item-metadata-container {
      float: none;
    }

    .frequent-items-item-title,
    .frequent-items-item-namespace {
      max-width: 250px;
    }
  }
}

.dropdown-content-faded-mask {
  position: relative;

  .dropdown-list {
    max-height: $dropdown-max-height;
    overflow-y: auto;
    position: relative;
  }

  &::after {
    height: $dropdown-fade-mask-height;
    width: 100%;
    position: absolute;
    bottom: 0;
    background: linear-gradient(to top, $white 0, rgba($white, 0));
    transition: opacity $fade-mask-transition-duration $fade-mask-transition-curve;
    content: '';
    pointer-events: none;
  }

  &.fade-out::after {
    opacity: 0;
  }
}

.labels-select-wrapper {
  &.is-standalone {
    min-width: $input-md-width;

    .labels-select-dropdown-contents {
      max-height: 350px;

      .dropdown-content {
        height: 250px;
      }
    }
  }

  li {
    &:hover,
    &.is-focused {
      .label-item {
        @include dropdown-item-hover;

        text-decoration: none;
      }
    }
  }

  .labels-select-dropdown-button {
    .gl-button-text {
      width: 100%;
    }
  }

  .labels-select-dropdown-contents {
    min-height: $dropdown-min-height;
    max-height: 330px;
    background-color: $white;
    border: 1px solid $border-color;
    box-shadow: 0 2px 4px $dropdown-shadow-color;
    z-index: 2;

    .dropdown-content {
      height: 135px;
    }
  }

  .labels-fetch-loading {
    top: 0;
    left: 0;
    opacity: 0.5;
    background-color: $white;
    z-index: 1;
  }

  .dropdown-header-button {
    .gl-icon {
      color: $dropdown-title-btn-color;

      &:hover {
        color: $gray-300;
      }
    }
  }

  .label-item {
    padding: 8px 20px;
  }
}

.bulk-update {
  .dropdown-toggle-text {
    &.is-default {
      color: $gl-text-color;
    }
  }
}

// This class won't be needed once we can directly add utility classes to the child
// https://github.com/bootstrap-vue/bootstrap-vue/issues/5669
.gl-dropdown-text-py-0 {
  .b-dropdown-text {
    padding-top: 0;
    padding-bottom: 0;
  }
}

// This class won't be needed once we can directly add utility classes to the child
// https://github.com/bootstrap-vue/bootstrap-vue/issues/5669
.gl-dropdown-text-block {
  .b-dropdown-text {
    display: block;
  }
}

// This class won't be needed once we can add a prop for this in the GitLab UI component
// https://gitlab.com/gitlab-org/gitlab-ui/-/issues/966
.gl-dropdown {
  .gl-dropdown-menu-wide {
    width: $gl-dropdown-width-wide;
  }
}

// This class won't be needed once we can add a prop for this in the GitLab UI component
// https://gitlab.com/gitlab-org/gitlab-ui/-/issues/966
.gl-dropdown.gl-dropdown-menu-full-width {
  .dropdown-menu {
    width: 100%;
  }
}
