//
// 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):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 {
        > .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,.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):not(: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):not(: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;
    }

}