naive-ui/styles/Radio.scss

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

@mixin radio-group-size-mixin ($size) {
  @include m($size + '-size') {
    @include m(button-group) {
      line-height: map-get($--n-height, $size);
      height: map-get($--n-height, $size);
    }
    @include b(radio-button) {
      line-height: map-get($--n-height, $size);
      height: map-get($--n-height, $size);
      font-size: map-get($--n-font-size, $size);
    }
    @include e(splitor) {
      height: map-get($--n-height, $size);
    }
  }
}

@mixin radio-size-mixin ($size) {
  @include m($size + '-size') {
    font-size: map-get($--n-font-size, $size);
    @include e(control) {
      height: map-get($--n-radio-size, $size);
      width: map-get($--n-radio-size, $size);
    }
  }
}

@include themes-mixin {
  @include b(radio) {
    @include once {
      @include radio-size-mixin('small');
      @include radio-size-mixin('medium');
      @include radio-size-mixin('large');
      line-height: 1.25;
      outline: none;
      position: relative;
      user-select: none;
      display: inline-flex;
      vertical-align: middle;
      align-items: center;
      @include e(radio-input) {
        width: 0;
        height: 0;
        opacity: 0;
        margin: 0;
      }
    }
    @include e(control) {
      @include once {
        transition:
          background-color .3s $--n-ease-in-out-cubic-bezier,
          box-shadow .3s $--n-ease-in-out-cubic-bezier;
        margin-right: 9px;
        position: relative;
        border-radius: 50%;
      }
      background-color: map-get($--radio-background-color, 'default');
      box-shadow: map-get($--radio-box-shadow, 'default');
      &::before {
        @include once {
          content: "";
          opacity: 0;
          position: absolute;
          left: 4px;
          top: 4px;
          height: calc(100% - 8px);
          width: calc(100% - 8px);
          border-radius: 50%;
          transform: scale(.8);
          transition: 
            opacity .3s $--n-ease-in-out-cubic-bezier,
            background-color .3s $--n-ease-in-out-cubic-bezier,
            transform .3s $--n-ease-in-out-cubic-bezier;
        }
        background-color: map-get($--radio-control-background-color, 'active');
      }
      @include m(checked) {
        box-shadow: map-get($--radio-box-shadow, 'active');
        @include once {
          &::before {
            opacity: 1;
            transform: scale(1);
          }
        }
      }
    }
    @include e(label) {
      @include once {
        display: inline-block;
        white-space: nowrap;
        transition: color .3s $--n-ease-in-out-cubic-bezier;
      }
      color: map-get($--radio-label-text-color, 'default');
    }
    @include not-m(disabled) {
      @include once {
        cursor: pointer;
      }
      &:hover {
        @include e(control) {
          box-shadow: map-get($--radio-box-shadow, 'hover');
        }
      }
      @include m(focus) {
        &:not(:active) {
          @include e(control) {
            box-shadow: map-get($--radio-box-shadow, 'focus');
          }
        }
      }
    }
    @include m(disabled) {
      @include once {
        cursor: not-allowed;
      }
      @include e(control) {
        box-shadow: map-get($--radio-box-shadow, 'disabled');
        background-color: map-get($--radio-background-color, 'disabled');
        &::before {
          background-color: map-get($--radio-control-background-color, 'disabled');
        }
        @include once {
          @include m(checked) {
            transform: scale(1);
            opacity: 1;
          }
        }
      }
      @include e(label) {
        color: map-get($--radio-label-text-color, 'disabled');
      }
    }
  }
}

@include themes-mixin {
  @include b(radio-group) {
    @include once {
      @include radio-group-size-mixin('small');
      @include radio-group-size-mixin('medium');
      @include radio-group-size-mixin('large');
      display: inline-block;
      @include b(radio) {
        margin-right: 18px;
      }
      @include m(button-group) {
        white-space: nowrap;
        height: 28px;
        line-height: 28px;
      }
      @include m(transition-disabled) {
        @include b(radio-button) {
          transition: none !important;
        }
      }
    }
    @include b(radio-button) {
      @include once {
        vertical-align: bottom;
        outline: none;
        position: relative;
        user-select: none;
        display: inline-block;
        height: 28px;
        line-height: 28px;
        box-sizing: border-box;
        padding-left: 14px;
        padding-right: 14px;
        white-space: nowrap;
        transition: background-color .3s $--n-ease-in-out-cubic-bezier, opacity .3s $--n-ease-in-out-cubic-bezier, border-color .3s $--n-ease-in-out-cubic-bezier, color .3s $--n-ease-in-out-cubic-bezier;
        @include e(radio-input) {
          width: 0;
          height: 0;
          opacity: 0;
          margin: 0;
        }
        @include e(border-mask) {
          pointer-events: none;
          position: absolute;
          box-shadow: inset 0 0 0 $--radio-border-mask-width transparent;
          transition: box-shadow .3s $--n-ease-in-out-cubic-bezier;
          left: -1px;
          bottom: -1px;
          right: -1px;
          top: -1px;
        }
      }
      color: map-get($--radio-button-label-color, 'default');
      border-top: 1px solid map-get($--radio-button-border-color, 'default');
      border-bottom: 1px solid map-get($--radio-button-border-color, 'default');
      
      &:first-child {
        @include once {
          border-top-left-radius: $--n-radio-button-border-radius;
          border-bottom-left-radius: $--n-radio-button-border-radius;
          @include e(border-mask) {
            border-top-left-radius: $--n-radio-button-border-radius;
            border-bottom-left-radius: $--n-radio-button-border-radius;
          }
        }
        border-left: 1px solid map-get($--radio-button-border-color, 'default');
      }
      &:last-child {
        @include once {
          border-top-right-radius: $--n-radio-button-border-radius;
          border-bottom-right-radius: $--n-radio-button-border-radius;
          @include e(border-mask) {
            border-top-right-radius: $--n-radio-button-border-radius;
            border-bottom-right-radius: $--n-radio-button-border-radius;
          }
        }
        border-right: 1px solid map-get($--radio-button-border-color, 'default');        
      }
      @include not-m(disabled) {
        @include once {
          cursor: pointer;
        }
        &:hover {
          @include e(border-mask) {
            box-shadow: map-get($--radio-button-box-shadow, 'hover');
            @include once {
              transition: box-shadow .3s $--n-ease-in-out-cubic-bezier;
            }
          }
          @include not-m(checked) {
            color: map-get($--radio-button-label-color, 'hover');
          }
        }
        @include m(focus) {
          &:not(:active) {
            @include e(border-mask) {
              box-shadow: map-get($--radio-button-box-shadow, 'focus')
            }
          }
        }
      }
      @include m(checked) {
        background-color: map-get($--radio-button-background-color, 'active');
        color: map-get($--radio-button-label-color, 'active');
        border-color:  map-get($--radio-button-border-color, 'active');
      }
      @include m(disabled) {
        @include once {
          cursor: not-allowed;
        }
        opacity: $--radio-disabled-opacity;
      }
    }
    @include e(splitor) {
      @include once {
        display: inline-block;
        vertical-align: bottom;
        height: 28px;
        width: 1px;
        transition: background-color .3s $--n-ease-in-out-cubic-bezier, opacity .3s $--n-ease-in-out-cubic-bezier;
      }
      background-color: map-get($--radio-button-border-color, 'default');
      @include m(checked) {
        background-color: map-get($--radio-button-border-color, 'active');
      }
      @include m(disabled) {
        opacity: $--radio-disabled-opacity;
      }
    }
  }
}