//
// Button groups
// --------------------------------------------------

// Make the div behave like a button
.btn-group
  position: relative
  display: inline-block
  +ie7-inline-block
  font-size: 0
  // remove as part 1 of font-size inline-block hack
  vertical-align: middle
  // match .btn alignment given font-size hack above
  white-space: nowrap
  // prevent buttons from wrapping when in tight spaces (e.g., the table on the tests page)
  +ie7-restore-left-whitespace

// Space out series of button groups
.btn-group + .btn-group
  margin-left: 5px

// Optional: Group multiple button groups together for a toolbar
.btn-toolbar
  font-size: 0
  // Hack to remove whitespace that results from using inline-block
  margin-top: $baseLineHeight / 2
  margin-bottom: $baseLineHeight / 2
  .btn + .btn,
  .btn-group + .btn,
  .btn + .btn-group
    margin-left: 5px

// Float them, remove border radius, then re-add to first and last elements
.btn-group > .btn
  position: relative
  +border-radius(0)

.btn-group > .btn + .btn
  margin-left: -1px

.btn-group > .btn,
.btn-group > .dropdown-menu
  font-size: $baseFontSize
  // redeclare as part 2 of font-size inline-block hack

// Reset fonts for other sizes
.btn-group > .btn-mini
  font-size: 11px

.btn-group > .btn-small
  font-size: 12px

.btn-group > .btn-large
  font-size: 16px

// 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
  -webkit-border-top-left-radius: 4px
  -moz-border-radius-topleft: 4px
  border-top-left-radius: 4px
  -webkit-border-bottom-left-radius: 4px
  -moz-border-radius-bottomleft: 4px
  border-bottom-left-radius: 4px

// Need .dropdown-toggle since :last-child doesn't apply given a .dropdown-menu immediately after it

.btn-group > .btn:last-child,
.btn-group > .dropdown-toggle
  -webkit-border-top-right-radius: 4px
  -moz-border-radius-topright: 4px
  border-top-right-radius: 4px
  -webkit-border-bottom-right-radius: 4px
  -moz-border-radius-bottomright: 4px
  border-bottom-right-radius: 4px

// Reset corners for large buttons
.btn-group > .btn.large:first-child
  margin-left: 0
  -webkit-border-top-left-radius: 6px
  -moz-border-radius-topleft: 6px
  border-top-left-radius: 6px
  -webkit-border-bottom-left-radius: 6px
  -moz-border-radius-bottomleft: 6px
  border-bottom-left-radius: 6px

.btn-group > .btn.large:last-child,
.btn-group > .large.dropdown-toggle
  -webkit-border-top-right-radius: 6px
  -moz-border-radius-topright: 6px
  border-top-right-radius: 6px
  -webkit-border-bottom-right-radius: 6px
  -moz-border-radius-bottomright: 6px
  border-bottom-right-radius: 6px

// On hover/focus/active, bring the proper btn to front

.btn-group > .btn:hover,
.btn-group > .btn:focus,
.btn-group > .btn:active,
.btn-group > .btn.active
  z-index: 2

// On active and open, don't show outline

.btn-group .dropdown-toggle:active,
.btn-group.open .dropdown-toggle
  outline: 0

// Split button dropdowns
// ----------------------

// Give the line between buttons some depth
.btn-group > .btn + .dropdown-toggle
  padding-left: 8px
  padding-right: 8px
  +box-shadow(inset 1px 0 0 rgba(255, 255, 255, 0.125), inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05))
  *padding-top: 5px
  *padding-bottom: 5px

.btn-group > .btn-mini + .dropdown-toggle
  padding-left: 5px
  padding-right: 5px
  *padding-top: 2px
  *padding-bottom: 2px

.btn-group > .btn-small + .dropdown-toggle
  *padding-top: 5px
  *padding-bottom: 4px

.btn-group > .btn-large + .dropdown-toggle
  padding-left: 12px
  padding-right: 12px
  *padding-top: 7px
  *padding-bottom: 7px

.btn-group.open
  // The clickable button for toggling the menu
  // Remove the gradient and set the same inset shadow as the :active state
  .dropdown-toggle
    background-image: none
    +box-shadow(inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05))
  // Keep the hover's background when dropdown is open
  .btn.dropdown-toggle
    background-color: $btnBackgroundHighlight
  .btn-primary.dropdown-toggle
    background-color: $btnPrimaryBackgroundHighlight
  .btn-warning.dropdown-toggle
    background-color: $btnWarningBackgroundHighlight
  .btn-danger.dropdown-toggle
    background-color: $btnDangerBackgroundHighlight
  .btn-success.dropdown-toggle
    background-color: $btnSuccessBackgroundHighlight
  .btn-info.dropdown-toggle
    background-color: $btnInfoBackgroundHighlight
  .btn-inverse.dropdown-toggle
    background-color: $btnInverseBackgroundHighlight

// Reposition the caret
.btn .caret
  margin-top: 8px
  margin-left: 0

// Carets in other button sizes

.btn-mini .caret,
.btn-small .caret,
.btn-large .caret
  margin-top: 6px

.btn-large .caret
  border-left-width: 5px
  border-right-width: 5px
  border-top-width: 5px

// Upside down carets for .dropup
.dropup .btn-large .caret
  border-bottom-width: 5px

// Account for other colors

.btn-primary,
.btn-warning,
.btn-danger,
.btn-info,
.btn-success,
.btn-inverse
  .caret
    border-top-color: $white
    border-bottom-color: $white

// Vertical button groups
// ----------------------

.btn-group-vertical
  display: inline-block
  // makes buttons only take up the width they need
  +ie7-inline-block

.btn-group-vertical .btn
  display: block
  float: none
  width: 100%
  +border-radius(0)

.btn-group-vertical .btn + .btn
  margin-left: 0
  margin-top: -1px

.btn-group-vertical .btn:first-child
  +border-radius(4px 4px 0 0)

.btn-group-vertical .btn:last-child
  +border-radius(0 0 4px 4px)

.btn-group-vertical .btn-large:first-child
  +border-radius(6px 6px 0 0)

.btn-group-vertical .btn-large:last-child
  +border-radius(0 0 6px 6px)