naive-ui/styles/Transfer.scss

@import './mixins/mixins.scss';

@keyframes transfer-slide-in-from-left {
  0% {
    transform: translateX(-150%);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes transfer-slide-out-to-right {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(150%);
  }
}

@keyframes transfer-slide-in-from-right {
  0% {
    transform: translateX(150%);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes transfer-slide-out-to-left {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-150%);
  }
}

@mixin transfer-animation-mixin($size) {
  @keyframes transfer-height-collapse--#{$size} {
    0% {
      max-height: map-get($--n-height, $size);
    }
    100% {
      max-height: 0;
    }
  }
  
  @keyframes transfer-height-expand--#{$size} {
    0% {
      max-height: 0;
    }
    100% {
      max-height: map-get($--n-height, $size);
    }
  }
}

@mixin transfer-size-mixin($size) {
  @include m($size + '-size') {
    @include m(filterable) {
      @include b(transfer-list) {
        @include b(transfer-list-body) {
          height: map-get($--n-height, $size) * 5.6 + 45px;
        }
      }
    }
    @include b(transfer-list) {
      @include b(transfer-list-header) {
        font-size: map-get($--n-font-size, $size);
        height: map-get($--n-height, $size) + 6px;
      }
      @include b(empty) {
        font-size: map-get($--n-font-size, $size);
      }
      @include b(transfer-list-body) {
        height: map-get($--n-height, $size) * 5.6;
        @include b(transfer-list-item) {
          font-size: map-get($--n-font-size, $size);
          height: map-get($--n-height, $size);
          max-height: map-get($--n-height, $size);
          @include m(source) {
            @include m(enter) {
              animation-name: transfer-height-expand--#{$size}, transfer-slide-in-from-right;
            }
            @include m(leave) {
              animation-name: transfer-height-collapse--#{$size}, transfer-slide-out-to-right;
            }
          }
          @include m(target) {
            @include m(enter) {
              animation-name: transfer-height-expand--#{$size}, transfer-slide-in-from-left;
            }
            @include m(leave) {
              animation-name: transfer-height-collapse--#{$size}, transfer-slide-out-to-left;
            }
          }
        }
      }
    }
  }
}

@include transfer-animation-mixin('small');
@include transfer-animation-mixin('medium');
@include transfer-animation-mixin('large');

@include themes-mixin {
  @include b(transfer) {
    @include once {
      display: flex;
      width: 444px;
      @include transfer-size-mixin('small');
      @include transfer-size-mixin('medium');
      @include transfer-size-mixin('large');
    }
    @include b(transfer-list) {
      @include once {
        background-clip: padding-box;
        width: calc(50% - 36px);
        position: relative;
        transition: background-color .3s $--n-ease-in-out-cubic-bezier;
        border-radius: $--n-transfer-border-radius;
        @include b(virtual-scroller) {
          height: 100%;
          scrollbar-width: none;
          -moz-scrollbar-width: none;
          &::-webkit-scrollbar {
            width: 0;
            height: 0;
          }
        }
        @include e(border-mask) {
          transition: border-color .3s $--n-ease-in-out-cubic-bezier;
          position: absolute;
          left: 0;
          right: 0;
          top: 0;
          bottom: 0;
          border-radius: $--n-transfer-border-radius;
        }
      }
      @include e(border-mask) {
        border: 1px solid $--transfer-border-color;
        pointer-events: $--transfer-list-border-mask-pointer-events;
      }
      background-color: map-get($--transfer-list-background-color, 'default');
      @include b(transfer-list-header) {
        @include once {
          box-sizing: border-box;
          transition: background-color .3s $--n-ease-in-out-cubic-bezier, border-color .3s $--n-ease-in-out-cubic-bezier;
          display: flex;
          border-radius: $--n-transfer-border-radius $--n-transfer-border-radius 0 0;
          align-items: center;
          background-clip: padding-box;
          @include e(checkbox) {
            position: relative;
            padding: 0 9px 0 14px;
            @include b(checkbox) {
              display: block;
            }
          }
        }
        background-color: map-get($--transfer-list-header-background-color, 'default');
        @include e(header) {
          @include once {
            flex: 1;
            line-height: 1;
            font-weight: $--n-strong-weight;
            transition: color .3s $--n-ease-in-out-cubic-bezier;
          }
          color: map-get($--transfer-list-header-text-color, 'default');
          @include m(disabled) {
            color: map-get($--transfer-list-header-text-color, 'disabled');
          }
        }
        @include e(extra) {
          @include once {
            transition: color .3s $--n-ease-in-out-cubic-bezier;
            font-size: 12px;
            justify-self: flex-end;
            margin-right: 14px;
            white-space: nowrap;
          }
          color: map-get($--transfer-list-header-extra-text-color, 'default');
        }
      }
      @include b(transfer-list-body) {
        @include b(transfer-filter) {
          border-bottom: 1px solid $--transfer-filter-border-color;
        }
        @include once {
          box-sizing: border-box;
          overflow: hidden;
          position: relative;
          height: 272px;
          display: flex;
          flex-direction: column;
          border-bottom-right-radius: $--n-transfer-border-radius;
          border-bottom-left-radius: $--n-transfer-border-radius;
          @include b(transfer-list-flex-container) {
            flex: 1;
            position: relative;
            @include b(scrollbar) {
              position: absolute;
              left: 0;
              right: 0;
              top: 0;
              bottom: 0;
              height: unset;
              @include b(scrollbar-content) {
                width: 100%;
              }
            }
            @include b(empty) {
              @include fade-in-transition;
              position: absolute;
              left: 50%;
              top: 50%;
              transform: translateY(-50%) translateX(-50%);
            }
          }
          @include b(transfer-filter) {
            padding: 8px 8px;
            box-sizing: border-box;
            transition: border-color .3s $--n-ease-in-out-cubic-bezier;
          }
        }
        @include b(transfer-list-content) {
          @include once {
            padding: 0;
            margin: 0;
            position: relative;
            @include m(animation-disabled) {
              @include b(transfer-list-item) {
                animation: none !important;
              }
            }
          }
          @include b(transfer-list-item) {
            @include once {
              transition: color .3s $--n-ease-in-out-cubic-bezier;
              position: relative;
              cursor: pointer;
              display: flex;
              align-items: center;
              @include e(extra) {
                text-overflow: ellipsis;
                overflow: hidden;
                white-space: nowrap;
                padding-right: 4px;
              }
              @include m(source) {
                animation-fill-mode: forwards;
                @include m(enter) {
                  transform: translateX(150%);
                  animation-duration: .25s, .25s;
                  animation-timing-function: $--n-ease-in-out-cubic-bezier, $--n-ease-out-cubic-bezier;
                  animation-delay: 0s, .25s;
                }
                @include m(leave) {
                  transform: translateX(-150%);
                  animation-duration: .25s, .25s;
                  animation-timing-function: $--n-ease-in-out-cubic-bezier, $--n-ease-in-cubic-bezier;
                  animation-delay: .25s, 0s;
                }
              }
              @include m(target) {
                animation-fill-mode: forwards;
                @include m(enter) {
                  transform: translateX(-150%);
                  animation-duration: .25s, .25s;
                  animation-timing-function: $--n-ease-in-out-cubic-bezier, $--n-ease-out-cubic-bezier;
                  animation-delay: 0s, .25s;
                }
                @include m(leave) {
                  transform: translateX(150%);
                  animation-duration: .25s, .25s;
                  animation-timing-function: $--n-ease-in-out-cubic-bezier, $--n-ease-in-cubic-bezier;
                  animation-delay: .25s, 0s;
                }
              }
            }
            color: map-get($--transfer-item-text-color, 'default');
            @include e(checkbox) {
              @include once {
                position: relative;
                padding: 0 9px 0 14px;
                @include b(checkbox) {
                  display: block;
                }
              }
              padding-left: 14px;
            }
            @include m(disabled) {
              @include once {
                cursor: not-allowed;
              }
              color: map-get($--transfer-item-text-color, 'disabled');
            }
          }
        }
      }
    }
    @include b(transfer-gap) {
      @include once {
        width: 72px;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
      }
      @include b(transfer-button) {
        @include once {
          width: 36px;
          height: 36px;
          border-radius: 18px;
          cursor: pointer;
          &:first-child {
            margin-bottom: 12px;
          }
          @include m(to) {
            transform: rotate(180deg);
          }
        }
        @include e(icon) {
          @include once {
            pointer-events: none;
            transition: fill .3s $--n-ease-in-out-cubic-bezier;
          }
          fill: map-get($--transfer-gap-button-background-color, 'default');
        }
        &:hover {
          @include e(icon) {
            fill: map-get($--transfer-gap-button-background-color, 'hover');
          }
        }
        &:active {
          @include e(icon) {
            fill: map-get($--transfer-gap-button-background-color, 'active');
          }
        }
        @include m(disabled) {
          @include once {
            cursor: not-allowed;
          }
          @include e(icon) {
            fill: map-get($--transfer-gap-button-background-color, 'disabled') !important;
          }
        }
      }
    }
  }
}