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   1  // Notes on the classes:
   2  //
   3  // 1. .carousel.pointer-event should ideally be pan-y (to allow for users to scroll vertically)
   4  //    even when their scroll action started on a carousel, but for compatibility (with Firefox)
   5  //    we're preventing all actions instead
   6  // 2. The .carousel-item-start and .carousel-item-end is used to indicate where
   7  //    the active slide is heading.
   8  // 3. .active.carousel-item is the current slide.
   9  // 4. .active.carousel-item-start and .active.carousel-item-end is the current
  10  //    slide in its in-transition state. Only one of these occurs at a time.
  11  // 5. .carousel-item-next.carousel-item-start and .carousel-item-prev.carousel-item-end
  12  //    is the upcoming slide in transition.
  13  
  14  .carousel {
  15    position: relative;
  16  }
  17  
  18  .carousel.pointer-event {
  19    touch-action: pan-y;
  20  }
  21  
  22  .carousel-inner {
  23    position: relative;
  24    width: 100%;
  25    overflow: hidden;
  26    @include clearfix();
  27  }
  28  
  29  .carousel-item {
  30    position: relative;
  31    display: none;
  32    float: left;
  33    width: 100%;
  34    margin-right: -100%;
  35    backface-visibility: hidden;
  36    @include transition($carousel-transition);
  37  }
  38  
  39  .carousel-item.active,
  40  .carousel-item-next,
  41  .carousel-item-prev {
  42    display: block;
  43  }
  44  
  45  /* rtl:begin:ignore */
  46  .carousel-item-next:not(.carousel-item-start),
  47  .active.carousel-item-end {
  48    transform: translateX(100%);
  49  }
  50  
  51  .carousel-item-prev:not(.carousel-item-end),
  52  .active.carousel-item-start {
  53    transform: translateX(-100%);
  54  }
  55  
  56  /* rtl:end:ignore */
  57  
  58  
  59  //
  60  // Alternate transitions
  61  //
  62  
  63  .carousel-fade {
  64    .carousel-item {
  65      opacity: 0;
  66      transition-property: opacity;
  67      transform: none;
  68    }
  69  
  70    .carousel-item.active,
  71    .carousel-item-next.carousel-item-start,
  72    .carousel-item-prev.carousel-item-end {
  73      z-index: 1;
  74      opacity: 1;
  75    }
  76  
  77    .active.carousel-item-start,
  78    .active.carousel-item-end {
  79      z-index: 0;
  80      opacity: 0;
  81      @include transition(opacity 0s $carousel-transition-duration);
  82    }
  83  }
  84  
  85  
  86  //
  87  // Left/right controls for nav
  88  //
  89  
  90  .carousel-control-prev,
  91  .carousel-control-next {
  92    position: absolute;
  93    top: 0;
  94    bottom: 0;
  95    z-index: 1;
  96    // Use flex for alignment (1-3)
  97    display: flex; // 1. allow flex styles
  98    align-items: center; // 2. vertically center contents
  99    justify-content: center; // 3. horizontally center contents
 100    width: $carousel-control-width;
 101    padding: 0;
 102    color: $carousel-control-color;
 103    text-align: center;
 104    background: none;
 105    border: 0;
 106    opacity: $carousel-control-opacity;
 107    @include transition($carousel-control-transition);
 108  
 109    // Hover/focus state
 110    &:hover,
 111    &:focus {
 112      color: $carousel-control-color;
 113      text-decoration: none;
 114      outline: 0;
 115      opacity: $carousel-control-hover-opacity;
 116    }
 117  }
 118  .carousel-control-prev {
 119    left: 0;
 120    background-image: if($enable-gradients, linear-gradient(90deg, rgba($black, .25), rgba($black, .001)), null);
 121  }
 122  .carousel-control-next {
 123    right: 0;
 124    background-image: if($enable-gradients, linear-gradient(270deg, rgba($black, .25), rgba($black, .001)), null);
 125  }
 126  
 127  // Icons for within
 128  .carousel-control-prev-icon,
 129  .carousel-control-next-icon {
 130    display: inline-block;
 131    width: $carousel-control-icon-width;
 132    height: $carousel-control-icon-width;
 133    background-repeat: no-repeat;
 134    background-position: 50%;
 135    background-size: 100% 100%;
 136  }
 137  
 138  /* rtl:options: {
 139    "autoRename": true,
 140    "stringMap":[ {
 141      "name"    : "prev-next",
 142      "search"  : "prev",
 143      "replace" : "next"
 144    } ]
 145  } */
 146  .carousel-control-prev-icon {
 147    background-image: escape-svg($carousel-control-prev-icon-bg);
 148  }
 149  .carousel-control-next-icon {
 150    background-image: escape-svg($carousel-control-next-icon-bg);
 151  }
 152  
 153  // Optional indicator pips/controls
 154  //
 155  // Add a container (such as a list) with the following class and add an item (ideally a focusable control,
 156  // like a button) with data-bs-target for each slide your carousel holds.
 157  
 158  .carousel-indicators {
 159    position: absolute;
 160    right: 0;
 161    bottom: 0;
 162    left: 0;
 163    z-index: 2;
 164    display: flex;
 165    justify-content: center;
 166    padding: 0;
 167    // Use the .carousel-control's width as margin so we don't overlay those
 168    margin-right: $carousel-control-width;
 169    margin-bottom: 1rem;
 170    margin-left: $carousel-control-width;
 171    list-style: none;
 172  
 173    [data-bs-target] {
 174      box-sizing: content-box;
 175      flex: 0 1 auto;
 176      width: $carousel-indicator-width;
 177      height: $carousel-indicator-height;
 178      padding: 0;
 179      margin-right: $carousel-indicator-spacer;
 180      margin-left: $carousel-indicator-spacer;
 181      text-indent: -999px;
 182      cursor: pointer;
 183      background-color: $carousel-indicator-active-bg;
 184      background-clip: padding-box;
 185      border: 0;
 186      // Use transparent borders to increase the hit area by 10px on top and bottom.
 187      border-top: $carousel-indicator-hit-area-height solid transparent;
 188      border-bottom: $carousel-indicator-hit-area-height solid transparent;
 189      opacity: $carousel-indicator-opacity;
 190      @include transition($carousel-indicator-transition);
 191    }
 192  
 193    .active {
 194      opacity: $carousel-indicator-active-opacity;
 195    }
 196  }
 197  
 198  
 199  // Optional captions
 200  //
 201  //
 202  
 203  .carousel-caption {
 204    position: absolute;
 205    right: (100% - $carousel-caption-width) * .5;
 206    bottom: $carousel-caption-spacer;
 207    left: (100% - $carousel-caption-width) * .5;
 208    padding-top: $carousel-caption-padding-y;
 209    padding-bottom: $carousel-caption-padding-y;
 210    color: $carousel-caption-color;
 211    text-align: center;
 212  }
 213  
 214  // Dark mode carousel
 215  
 216  .carousel-dark {
 217    .carousel-control-prev-icon,
 218    .carousel-control-next-icon {
 219      filter: $carousel-dark-control-icon-filter;
 220    }
 221  
 222    .carousel-indicators [data-bs-target] {
 223      background-color: $carousel-dark-indicator-active-bg;
 224    }
 225  
 226    .carousel-caption {
 227      color: $carousel-dark-caption-color;
 228    }
 229  }