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

// Button carets
//
// Match the button text color to the arrow/caret for indicating dropdown-ness.

.uv {
  .caret {
    .btn-default & {
      border-top-color: @btn-default-color;
    }
    .btn-primary &,
    .btn-success &,
    .btn-warning &,
    .btn-danger &,
    .btn-info & {
      border-top-color: #fff;
    }
  }
  .dropup {
    & .btn-default .caret {
      border-bottom-color: @btn-default-color;
    }
    .btn-primary,
    .btn-success,
    .btn-warning,
    .btn-danger,
    .btn-info {
      .caret {
        border-bottom-color: #fff;
      }
    }
  }

  // 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;
      }
      &:focus {
        // Remove focus outline when dropdown JS adds it after closing the menu
        outline: none;
      }
    }
  }

  // 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 {
    .clearfix();

    .btn-group {
      float: left;
    }
    // Space out series of button groups
    > .btn,
    > .btn-group {
      + .btn,
      + .btn-group {
        margin-left: 5px;
      }
    }
  }

  .btn-group > .btn:not(:first-child, :last-child, .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, .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, :last-child) > .btn {
    border-radius: 0;
  }
  .btn-group > .btn-group:first-child {
    > .btn:last-child,
    > .dropdown-toggle {
      .border-right-radius(0);
    }
  }
  .btn-group > .btn-group:last-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 {
    .uv .btn-xs();
  }
  .btn-group-sm > .btn {
    .uv .btn-sm();
  }
  .btn-group-lg > .btn {
    .uv .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(0,0,0,0.125));
  }

  // 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 {
      display: block;
      float: none;
      width: 100%;
      max-width: 100%;
    }

    // Clear floats so dropdown menus can be properly placed
    > .btn-group {
      .clearfix();
      > .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, :last-child) {
      border-radius: 0;
    }
    &:first-child:not(:last-child) {
      border-top-right-radius: @border-radius-base;
      .border-bottom-radius(0);
    }
    &:last-child:not(:first-child) {
      border-bottom-left-radius: @border-radius-base;
      .border-top-radius(0);
    }
  }
  .btn-group-vertical > .btn-group:not(:first-child, :last-child) > .btn {
    border-radius: 0;
  }
  .btn-group-vertical > .btn-group:first-child {
    > .btn:last-child,
    > .dropdown-toggle {
      .border-bottom-radius(0);
    }
  }
  .btn-group-vertical > .btn-group:last-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 {
      float: none;
      display: table-cell;
      width: 1%;
    }
  }

  // Checkbox and radio options
  [data-toggle="buttons"] > .btn > input[type="radio"],
  [data-toggle="buttons"] > .btn > input[type="checkbox"] {
    display: none;
  }
}