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   1  // stylelint-disable selector-no-qualifying-type
   2  
   3  //
   4  // Base styles
   5  //
   6  
   7  .input-group {
   8    position: relative;
   9    display: flex;
  10    flex-wrap: wrap; // For form validation feedback
  11    align-items: stretch;
  12    width: 100%;
  13  
  14    > .form-control,
  15    > .form-control-plaintext,
  16    > .custom-select,
  17    > .custom-file {
  18      position: relative; // For focus state's z-index
  19      flex: 1 1 auto;
  20      width: 1%;
  21      min-width: 0; // https://stackoverflow.com/questions/36247140/why-dont-flex-items-shrink-past-content-size
  22      margin-bottom: 0;
  23  
  24      + .form-control,
  25      + .custom-select,
  26      + .custom-file {
  27        margin-left: -$input-border-width;
  28      }
  29    }
  30  
  31    // Bring the "active" form control to the top of surrounding elements
  32    > .form-control:focus,
  33    > .custom-select:focus,
  34    > .custom-file .custom-file-input:focus ~ .custom-file-label {
  35      z-index: 3;
  36    }
  37  
  38    // Bring the custom file input above the label
  39    > .custom-file .custom-file-input:focus {
  40      z-index: 4;
  41    }
  42  
  43    > .form-control,
  44    > .custom-select {
  45      &:not(:last-child) { @include border-right-radius(0); }
  46      &:not(:first-child) { @include border-left-radius(0); }
  47    }
  48  
  49    // Custom file inputs have more complex markup, thus requiring different
  50    // border-radius overrides.
  51    > .custom-file {
  52      display: flex;
  53      align-items: center;
  54  
  55      &:not(:last-child) .custom-file-label,
  56      &:not(:last-child) .custom-file-label::after { @include border-right-radius(0); }
  57      &:not(:first-child) .custom-file-label { @include border-left-radius(0); }
  58    }
  59  }
  60  
  61  
  62  // Prepend and append
  63  //
  64  // While it requires one extra layer of HTML for each, dedicated prepend and
  65  // append elements allow us to 1) be less clever, 2) simplify our selectors, and
  66  // 3) support HTML5 form validation.
  67  
  68  .input-group-prepend,
  69  .input-group-append {
  70    display: flex;
  71  
  72    // Ensure buttons are always above inputs for more visually pleasing borders.
  73    // This isn't needed for `.input-group-text` since it shares the same border-color
  74    // as our inputs.
  75    .btn {
  76      position: relative;
  77      z-index: 2;
  78  
  79      &:focus {
  80        z-index: 3;
  81      }
  82    }
  83  
  84    .btn + .btn,
  85    .btn + .input-group-text,
  86    .input-group-text + .input-group-text,
  87    .input-group-text + .btn {
  88      margin-left: -$input-border-width;
  89    }
  90  }
  91  
  92  .input-group-prepend { margin-right: -$input-border-width; }
  93  .input-group-append { margin-left: -$input-border-width; }
  94  
  95  
  96  // Textual addons
  97  //
  98  // Serves as a catch-all element for any text or radio/checkbox input you wish
  99  // to prepend or append to an input.
 100  
 101  .input-group-text {
 102    display: flex;
 103    align-items: center;
 104    padding: $input-padding-y $input-padding-x;
 105    margin-bottom: 0; // Allow use of <label> elements by overriding our default margin-bottom
 106    @include font-size($input-font-size); // Match inputs
 107    font-weight: $font-weight-normal;
 108    line-height: $input-line-height;
 109    color: $input-group-addon-color;
 110    text-align: center;
 111    white-space: nowrap;
 112    background-color: $input-group-addon-bg;
 113    border: $input-border-width solid $input-group-addon-border-color;
 114    @include border-radius($input-border-radius);
 115  
 116    // Nuke default margins from checkboxes and radios to vertically center within.
 117    input[type="radio"],
 118    input[type="checkbox"] {
 119      margin-top: 0;
 120    }
 121  }
 122  
 123  
 124  // Sizing
 125  //
 126  // Remix the default form control sizing classes into new ones for easier
 127  // manipulation.
 128  
 129  .input-group-lg > .form-control:not(textarea),
 130  .input-group-lg > .custom-select {
 131    height: $input-height-lg;
 132  }
 133  
 134  .input-group-lg > .form-control,
 135  .input-group-lg > .custom-select,
 136  .input-group-lg > .input-group-prepend > .input-group-text,
 137  .input-group-lg > .input-group-append > .input-group-text,
 138  .input-group-lg > .input-group-prepend > .btn,
 139  .input-group-lg > .input-group-append > .btn {
 140    padding: $input-padding-y-lg $input-padding-x-lg;
 141    @include font-size($input-font-size-lg);
 142    line-height: $input-line-height-lg;
 143    @include border-radius($input-border-radius-lg);
 144  }
 145  
 146  .input-group-sm > .form-control:not(textarea),
 147  .input-group-sm > .custom-select {
 148    height: $input-height-sm;
 149  }
 150  
 151  .input-group-sm > .form-control,
 152  .input-group-sm > .custom-select,
 153  .input-group-sm > .input-group-prepend > .input-group-text,
 154  .input-group-sm > .input-group-append > .input-group-text,
 155  .input-group-sm > .input-group-prepend > .btn,
 156  .input-group-sm > .input-group-append > .btn {
 157    padding: $input-padding-y-sm $input-padding-x-sm;
 158    @include font-size($input-font-size-sm);
 159    line-height: $input-line-height-sm;
 160    @include border-radius($input-border-radius-sm);
 161  }
 162  
 163  .input-group-lg > .custom-select,
 164  .input-group-sm > .custom-select {
 165    padding-right: $custom-select-padding-x + $custom-select-indicator-padding;
 166  }
 167  
 168  
 169  // Prepend and append rounded corners
 170  //
 171  // These rulesets must come after the sizing ones to properly override sm and lg
 172  // border-radius values when extending. They're more specific than we'd like
 173  // with the `.input-group >` part, but without it, we cannot override the sizing.
 174  
 175  
 176  .input-group > .input-group-prepend > .btn,
 177  .input-group > .input-group-prepend > .input-group-text,
 178  .input-group > .input-group-append:not(:last-child) > .btn,
 179  .input-group > .input-group-append:not(:last-child) > .input-group-text,
 180  .input-group > .input-group-append:last-child > .btn:not(:last-child):not(.dropdown-toggle),
 181  .input-group > .input-group-append:last-child > .input-group-text:not(:last-child) {
 182    @include border-right-radius(0);
 183  }
 184  
 185  .input-group > .input-group-append > .btn,
 186  .input-group > .input-group-append > .input-group-text,
 187  .input-group > .input-group-prepend:not(:first-child) > .btn,
 188  .input-group > .input-group-prepend:not(:first-child) > .input-group-text,
 189  .input-group > .input-group-prepend:first-child > .btn:not(:first-child),
 190  .input-group > .input-group-prepend:first-child > .input-group-text:not(:first-child) {
 191    @include border-left-radius(0);
 192  }