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//
// Button groups
// --------------------------------------------------
// Make the div behave like a button
.btn-group,
.btn-group-vertical {
position: relative;
display: inline-block;
vertical-align: middle; // match .btn alignment given font-size hack above
> .btn {
position: relative;
float: left;
// Bring the "active" button to the front
&:hover,
&:focus,
&:active,
&.active {
z-index: 2;
}
}
}
// Prevent double borders when buttons are next to each other
.btn-group {
.btn + .btn,
.btn + .btn-group,
.btn-group + .btn,
.btn-group + .btn-group {
margin-left: -1px;
}
}
// Optional: Group multiple button groups together for a toolbar
.btn-toolbar {
margin-left: -5px; // Offset the first child's margin
&:extend(.clearfix all);
.btn,
.btn-group,
.input-group {
float: left;
}
> .btn,
> .btn-group,
> .input-group {
margin-left: 5px;
}
}
.btn-group > .btn:not(:first-child):not(:last-child):not(.dropdown-toggle) {
border-radius: 0;
}
// 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
.btn-group > .btn:first-child {
margin-left: 0;
&:not(:last-child):not(.dropdown-toggle) {
.border-right-radius(0);
}
}
// Need .dropdown-toggle since :last-child doesn't apply given a .dropdown-menu immediately after it
.btn-group > .btn:last-child:not(:first-child),
.btn-group > .dropdown-toggle:not(:first-child) {
.border-left-radius(0);
}
// Custom edits for including btn-groups within btn-groups (useful for including dropdown buttons within a btn-group)
.btn-group > .btn-group {
float: left;
}
.btn-group > .btn-group:not(:first-child):not(:last-child) > .btn {
border-radius: 0;
}
.btn-group > .btn-group:first-child:not(:last-child) {
> .btn:last-child,
> .dropdown-toggle {
.border-right-radius(0);
}
}
.btn-group > .btn-group:last-child:not(:first-child) > .btn:first-child {
.border-left-radius(0);
}
// On active and open, don't show outline
.btn-group .dropdown-toggle:active,
.btn-group.open .dropdown-toggle {
outline: 0;
}
// Sizing
//
// Remix the default button sizing classes into new ones for easier manipulation.
.btn-group-xs > .btn { &:extend(.btn-xs); }
.btn-group-sm > .btn { &:extend(.btn-sm); }
.btn-group-lg > .btn { &:extend(.btn-lg); }
// Split button dropdowns
// ----------------------
// Give the line between buttons some depth
.btn-group > .btn + .dropdown-toggle {
padding-left: 8px;
padding-right: 8px;
}
.btn-group > .btn-lg + .dropdown-toggle {
padding-left: 12px;
padding-right: 12px;
}
// The clickable button for toggling the menu
// Remove the gradient and set the same inset shadow as the :active state
.btn-group.open .dropdown-toggle {
.box-shadow(inset 0 3px 5px rgba(0,0,0,.125));
// Show no shadow for `.btn-link` since it has no other button styles.
&.btn-link {
.box-shadow(none);
}
}
// Reposition the caret
.btn .caret {
margin-left: 0;
}
// Carets in other button sizes
.btn-lg .caret {
border-width: @caret-width-large @caret-width-large 0;
border-bottom-width: 0;
}
// Upside down carets for .dropup
.dropup .btn-lg .caret {
border-width: 0 @caret-width-large @caret-width-large;
}
// Vertical button groups
// ----------------------
.btn-group-vertical {
> .btn,
> .btn-group,
> .btn-group > .btn {
display: block;
float: none;
width: 100%;
max-width: 100%;
}
// Clear floats so dropdown menus can be properly placed
> .btn-group {
&:extend(.clearfix all);
> .btn {
float: none;
}
}
> .btn + .btn,
> .btn + .btn-group,
> .btn-group + .btn,
> .btn-group + .btn-group {
margin-top: -1px;
margin-left: 0;
}
}
.btn-group-vertical > .btn {
&:not(:first-child):not(:last-child) {
border-radius: 0;
}
&:first-child:not(:last-child) {
.border-top-radius(@btn-border-radius-base);
.border-bottom-radius(0);
}
&:last-child:not(:first-child) {
.border-top-radius(0);
.border-bottom-radius(@btn-border-radius-base);
}
}
.btn-group-vertical > .btn-group:not(:first-child):not(:last-child) > .btn {
border-radius: 0;
}
.btn-group-vertical > .btn-group:first-child:not(:last-child) {
> .btn:last-child,
> .dropdown-toggle {
.border-bottom-radius(0);
}
}
.btn-group-vertical > .btn-group:last-child:not(:first-child) > .btn:first-child {
.border-top-radius(0);
}
// Justified button groups
// ----------------------
.btn-group-justified {
display: table;
width: 100%;
table-layout: fixed;
border-collapse: separate;
> .btn,
> .btn-group {
float: none;
display: table-cell;
width: 1%;
}
> .btn-group .btn {
width: 100%;
}
> .btn-group .dropdown-menu {
left: auto;
}
}
// Checkbox and radio options
//
// In order to support the browser's form validation feedback, powered by the
// `required` attribute, we have to "hide" the inputs via `clip`. We cannot use
// `display: none;` or `visibility: hidden;` as that also hides the popover.
// Simply visually hiding the inputs via `opacity` would leave them clickable in
// certain cases which is prevented by using `clip` and `pointer-events`.
// This way, we ensure a DOM element is visible to position the popover from.
//
// See https://github.com/twbs/bootstrap/pull/12794 and
// https://github.com/twbs/bootstrap/pull/14559 for more information.
[data-toggle="buttons"] {
> .btn,
> .btn-group > .btn {
input[type="radio"],
input[type="checkbox"] {
position: absolute;
clip: rect(0,0,0,0);
pointer-events: none;
}
}
}
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