src/scss/bootstrap-4.0.0-alpha.6/scss/_button-group.scss

   1 // scss-lint:disable QualifyingElement
   2
   3 // Make the div behave like a button
   4 .btn-group,
   5 .btn-group-vertical {
   6   position: relative;
   7   display: inline-flex;
   8   vertical-align: middle; // match .btn alignment given font-size hack above
   9
  10   > .btn {
  11     position: relative;
  12     flex: 0 1 auto;
  13
  14     // Bring the hover, focused, and "active" buttons to the fron to overlay
  15     // the borders properly
  16     @include hover {
  17       z-index: 2;
  18     }
  19     &:focus,
  20     &:active,
  21     &.active {
  22       z-index: 2;
  23     }
  24   }
  25
  26   // Prevent double borders when buttons are next to each other
  27   .btn + .btn,
  28   .btn + .btn-group,
  29   .btn-group + .btn,
  30   .btn-group + .btn-group {
  31     margin-left: -$input-btn-border-width;
  32   }
  33 }
  34
  35 // Optional: Group multiple button groups together for a toolbar
  36 .btn-toolbar {
  37   display: flex;
  38   justify-content: flex-start;
  39
  40   .input-group {
  41     width: auto;
  42   }
  43 }
  44
  45 .btn-group > .btn:not(:first-child):not(:last-child):not(.dropdown-toggle) {
  46   border-radius: 0;
  47 }
  48
  49 // Set corners individual because sometimes a single button can be in a .btn-group and we need :first-child and :last-child to both match
  50 .btn-group > .btn:first-child {
  51   margin-left: 0;
  52
  53   &:not(:last-child):not(.dropdown-toggle) {
  54     @include border-right-radius(0);
  55   }
  56 }
  57 // Need .dropdown-toggle since :last-child doesn't apply given a .dropdown-menu immediately after it
  58 .btn-group > .btn:last-child:not(:first-child),
  59 .btn-group > .dropdown-toggle:not(:first-child) {
  60   @include border-left-radius(0);
  61 }
  62
  63 // Custom edits for including btn-groups within btn-groups (useful for including dropdown buttons within a btn-group)
  64 .btn-group > .btn-group {
  65   float: left;
  66 }
  67 .btn-group > .btn-group:not(:first-child):not(:last-child) > .btn {
  68   border-radius: 0;
  69 }
  70 .btn-group > .btn-group:first-child:not(:last-child) {
  71   > .btn:last-child,
  72   > .dropdown-toggle {
  73     @include border-right-radius(0);
  74   }
  75 }
  76 .btn-group > .btn-group:last-child:not(:first-child) > .btn:first-child {
  77   @include border-left-radius(0);
  78 }
  79
  80 // On active and open, don't show outline
  81 .btn-group .dropdown-toggle:active,
  82 .btn-group.open .dropdown-toggle {
  83   outline: 0;
  84 }
  85
  86
  87 // Sizing
  88 //
  89 // Remix the default button sizing classes into new ones for easier manipulation.
  90
  91 .btn-group-sm > .btn { @extend .btn-sm; }
  92 .btn-group-lg > .btn { @extend .btn-lg; }
  93
  94
  95 //
  96 // Split button dropdowns
  97 //
  98
  99 .btn + .dropdown-toggle-split {
 100   padding-right: $btn-padding-x * .75;
 101   padding-left: $btn-padding-x * .75;
 102
 103   &::after {
 104     margin-left: 0;
 105   }
 106 }
 107
 108 .btn-sm + .dropdown-toggle-split {
 109   padding-right: $btn-padding-x-sm * .75;
 110   padding-left: $btn-padding-x-sm * .75;
 111 }
 112
 113 .btn-lg + .dropdown-toggle-split {
 114   padding-right: $btn-padding-x-lg * .75;
 115   padding-left: $btn-padding-x-lg * .75;
 116 }
 117
 118
 119 // The clickable button for toggling the menu
 120 // Remove the gradient and set the same inset shadow as the :active state
 121 .btn-group.open .dropdown-toggle {
 122   @include box-shadow($btn-active-box-shadow);
 123
 124   // Show no shadow for `.btn-link` since it has no other button styles.
 125   &.btn-link {
 126     @include box-shadow(none);
 127   }
 128 }
 129
 130
 131 //
 132 // Vertical button groups
 133 //
 134
 135 .btn-group-vertical {
 136   display: inline-flex;
 137   flex-direction: column;
 138   align-items: flex-start;
 139   justify-content: center;
 140
 141   .btn,
 142   .btn-group {
 143     width: 100%;
 144   }
 145
 146   > .btn + .btn,
 147   > .btn + .btn-group,
 148   > .btn-group + .btn,
 149   > .btn-group + .btn-group {
 150     margin-top: -$input-btn-border-width;
 151     margin-left: 0;
 152   }
 153 }
 154
 155 .btn-group-vertical > .btn {
 156   &:not(:first-child):not(:last-child) {
 157     border-radius: 0;
 158   }
 159   &:first-child:not(:last-child) {
 160     @include border-bottom-radius(0);
 161   }
 162   &:last-child:not(:first-child) {
 163     @include border-top-radius(0);
 164   }
 165 }
 166 .btn-group-vertical > .btn-group:not(:first-child):not(:last-child) > .btn {
 167   border-radius: 0;
 168 }
 169 .btn-group-vertical > .btn-group:first-child:not(:last-child) {
 170   > .btn:last-child,
 171   > .dropdown-toggle {
 172     @include border-bottom-radius(0);
 173   }
 174 }
 175 .btn-group-vertical > .btn-group:last-child:not(:first-child) > .btn:first-child {
 176   @include border-top-radius(0);
 177 }
 178
 179
 180 // Checkbox and radio options
 181 //
 182 // In order to support the browser's form validation feedback, powered by the
 183 // `required` attribute, we have to "hide" the inputs via `clip`. We cannot use
 184 // `display: none;` or `visibility: hidden;` as that also hides the popover.
 185 // Simply visually hiding the inputs via `opacity` would leave them clickable in
 186 // certain cases which is prevented by using `clip` and `pointer-events`.
 187 // This way, we ensure a DOM element is visible to position the popover from.
 188 //
 189 // See https://github.com/twbs/bootstrap/pull/12794 and
 190 // https://github.com/twbs/bootstrap/pull/14559 for more information.
 191
 192 [data-toggle="buttons"] {
 193   > .btn,
 194   > .btn-group > .btn {
 195     input[type="radio"],
 196     input[type="checkbox"] {
 197       position: absolute;
 198       clip: rect(0,0,0,0);
 199       pointer-events: none;
 200     }
 201   }
 202 }