ant-design/components/input/style/mixin.less

@import "../../style/themes/default";
@import "../../style/mixins/index";

@input-presuffix-width: 17;

// size mixins for input
.input-lg() {
  padding: @input-padding-vertical-lg @input-padding-horizontal;
  height: @input-height-lg;
}

.input-sm() {
  padding: @input-padding-vertical-sm @input-padding-horizontal;
  height: @input-height-sm;
  border-radius: @border-radius-sm;
}

// input status
// == when focus or actived
.active(@color: @outline-color) {
  border-color: ~`colorPalette("@{color}", 5)`;
  outline: 0;
  box-shadow: 0 0 @outline-blur-size @outline-width fade(@color, 20%);
}

// == when hoverd
.hover(@color: @input-hover-border-color) {
  border-color: ~`colorPalette("@{color}", 5)`;
}

.disabled() {
  background-color: @input-disabled-bg;
  opacity: 1;
  cursor: not-allowed;
  color: @disabled-color;
  &:hover {
    .hover(@input-border-color);
  }
}

// Basic style for input
.input() {
  position: relative;
  display: inline-block;
  padding: @input-padding-vertical-base @input-padding-horizontal;
  width: 100%;
  height: @input-height-base;
  cursor: text;
  font-size: @font-size-base;
  line-height: @line-height-base;
  color: @input-color;
  background-color: @input-bg;
  background-image: none;
  border: 1px solid @input-border-color;
  border-radius: @border-radius-base;
  .placeholder(); // Reset placeholder
  transition: all .3s;

  &:hover {
    .hover();
  }

  &:focus {
    .active();
  }

  &[disabled] {
    .disabled();
  }

  // Reset height for `textarea`s
  textarea& {
    max-width: 100%; // prevent textearea resize from coming out of its container
    height: auto;
    vertical-align: bottom;
  }

  // Size
  &-lg {
    .input-lg();
  }

  &-sm {
    .input-sm();
  }
}

// label input
.input-group(@inputClass) {
  position: relative;
  display: table;
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;

  // Undo padding and float of grid classes
  &[class*="col-"] {
    float: none;
    padding-left: 0;
    padding-right: 0;
  }

  > [class*="col-"] {
    padding-right: 8px;
  }

  &-addon,
  &-wrap,
  > .@{inputClass} {
    display: table-cell;

    &:not(:first-child):not(:last-child) {
      border-radius: 0;
    }
  }

  &-addon,
  &-wrap {
    width: 1px; // To make addon/wrap as small as possible
    white-space: nowrap;
    vertical-align: middle;
  }

  &-wrap > * {
    display: block !important;
  }

  .@{inputClass} {
    position: relative;
    z-index: 2;
    float: left;
    width: 100%;
    margin-bottom: 0;
  }

  &-addon {
    padding: @input-padding-vertical-base @input-padding-horizontal;
    font-size: @font-size-base;
    font-weight: normal;
    line-height: 1;
    color: @input-color;
    text-align: center;
    background-color: #eee;
    border: 1px solid @input-border-color;
    border-radius: @border-radius-base;
    position: relative;
    transition: all .3s;

    // Reset Select's style in addon
    .@{ant-prefix}-select {
      margin: -(@input-padding-vertical-base + 1) (-@input-padding-horizontal);  // lesshint spaceAroundOperator: false

      .@{ant-prefix}-select-selection {
        background-color: inherit;
        margin: -1px;
        border: 1px solid transparent;
        box-shadow: none;
      }

      &-open,
      &-focused {
        .@{ant-prefix}-select-selection {
          color: @primary-color;
        }
      }
    }

    // Expand addon icon click area
    // https://github.com/ant-design/ant-design/issues/3714
    > i:only-child:after {
      position: absolute;
      content: '';
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
    }
  }

  // Reset rounded corners
  > span > .@{inputClass}:first-child,
  > .@{inputClass}:first-child,
  &-addon:first-child {
    border-bottom-right-radius: 0;
    border-top-right-radius: 0;

    // Reset Select's style in addon
    .@{ant-prefix}-select .@{ant-prefix}-select-selection {
      border-bottom-right-radius: 0;
      border-top-right-radius: 0;
    }
  }

  > .@{inputClass}-preSuffix-wrapper {
    &:not(:first-child) .@{inputClass} {
      border-bottom-left-radius: 0;
      border-top-left-radius: 0;
    }

    &:not(:last-child) .@{inputClass} {
      border-bottom-right-radius: 0;
      border-top-right-radius: 0;
    }
  }

  &-addon:first-child {
    border-right: 0;
  }
  &-addon:last-child {
    border-left: 0;
  }

  > .@{inputClass}:last-child,
  &-addon:last-child {
    border-bottom-left-radius: 0;
    border-top-left-radius: 0;

    // Reset Select's style in addon
    .@{ant-prefix}-select .@{ant-prefix}-select-selection {
      border-bottom-left-radius: 0;
      border-top-left-radius: 0;
    }
  }

  // Sizing options
  &-lg .@{inputClass},
  &-lg > &-addon {
    .input-lg();
  }

  &-sm .@{inputClass},
  &-sm > &-addon {
    .input-sm();
  }

  .@{inputClass}-preSuffix-wrapper {
    display: table-cell;
    width: 100%;
    float: left;
  }

  &&-compact {
    & > * {
      border-radius: 0;
      border-right-width: 0;
    }

    // Undo float for .ant-input-group .ant-input
    .@{inputClass} {
      float: none;
      z-index: auto;
    }

    // reset border for Select, datePicker
    & > .@{ant-prefix}-select > .@{ant-prefix}-select-selection,
    & > .@{ant-prefix}-calendar-picker .@{ant-prefix}-input {
      border-radius: 0;
      border-right-width: 0;
    }

    & > *:first-child,
    & > .@{ant-prefix}-select:first-child > .@{ant-prefix}-select-selection,
    & > .@{ant-prefix}-calendar-picker:first-child .@{ant-prefix}-input {
      border-top-left-radius: @border-radius-base;
      border-bottom-left-radius: @border-radius-base;
    }

    & > *:last-child,
    & > .@{ant-prefix}-select:last-child > .@{ant-prefix}-select-selection,
    & > .@{ant-prefix}-calendar-picker:last-child .@{ant-prefix}-input {
      border-top-right-radius: @border-radius-base;
      border-bottom-right-radius: @border-radius-base;
      border-right-width: 1px;
    }
  }
}

.input-preSuffix-wrapper(@inputClass) {
  position: relative;
  display: inline-block;
  width: 100%;

  .@{inputClass} {
    z-index: 1;
  }

  &:hover .@{inputClass} {
    .hover();
  }

  .@{inputClass}-prefix,
  .@{inputClass}-suffix {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    line-height: 1.2;
  }

  .@{inputClass}-prefix {
    left: @input-padding-horizontal;
  }

  .@{inputClass}-suffix {
    right: @input-padding-horizontal;
  }

  .@{inputClass}:not(:first-child) {
    padding-left: @input-padding-horizontal + @input-presuffix-width;
  }

  .@{inputClass}:not(:last-child) {
    padding-right: @input-padding-horizontal + @input-presuffix-width;
  }
}