@import (reference) "../variables/legacy-variables.less";
@import (reference) "./mixins/_logical-properties.less";
@import (reference) "./mixins/_border-radius.less";
@import (reference) "./mixins/_clearfix.less";
@import (reference) "./mixins/_tab-focus.less";
@import (reference) "./core/_typography.less";

// Make the div behave like a button
.btn-group,
.btn-group-vertical {
  position: relative;
  display: inline-block;
  vertical-align: middle;

  > .btn {
    position: relative;
    .float(left);
  }
}

// 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);
  }
}

.expand-toolbar() {
  margin-left: -4px; // Offset the first child's margin
  margin-right: -4px; // Offset the first child's margin
  .btn,
  .btn-group,
  .input-group {
    width: auto;
    margin-bottom: 0;
    .float(left);

    margin-left: 4px;
    margin-right: 4px;
  }
}

// Optional: Group multiple button groups together for a toolbar
.btn-toolbar {
  .clearfix();

  .btn,
  .btn-group,
  .input-group {
    width: 100%;
    margin-bottom: 16px;
  }

  .btn-group .btn,
  .input-group .btn {
    width: auto;
    margin: 0;
    .margin(left, -1px);
  }

  @media (min-width: @screen-lg-min) {
    &:not(.btn-toolbar-xl) {
      // Default behaviour collapses on lg, over-ruled by modifiers
      .expand-toolbar();
    }
  }

  &.btn-toolbar-xs {
    .expand-toolbar();
  }

  @media (min-width: @screen-sm-min) {
    &.btn-toolbar-sm {
      .expand-toolbar();
    }
  }

  @media (min-width: @screen-md-min) {
    &.btn-toolbar-md {
      .expand-toolbar();
    }
  }

  @media (min-width: @screen-lg-min) {
    &.btn-toolbar-lg {
      .expand-toolbar();
    }
  }

  @media (min-width: @screen-xl-min) {
    &.btn-toolbar-xl {
      .expand-toolbar();
    }
  }
}

.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-radius(right, 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-radius(left, 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-radius(right, 0);
  }
}

.btn-group > .btn-group:last-child:not(:first-child) > .btn:first-child {
  .border-radius(left, 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, 12px);

  .padding(right, 12px);
}

.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: none;

  // Show no shadow for `.btn-link` since it has no other button styles.
  &.btn-link {
    box-shadow: none;
  }
}

// Carets in other button sizes
.btn-lg .caret {
  border-width: @caret-width-large @caret-width-large 0;
  border-bottom-width: 0;
}

.btn-sm .caret,
.input-group-sm .btn .caret {
  top: 8px !important;
}

.btn-lg .caret,
.input-group-lg .btn .caret {
  top: 27px !important;
}
// Upside down carets for .dropup
.dropup .btn-lg .caret {
  border-width: 0 @caret-width-large @caret-width-large;
}

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

// @TODO Deprecate / Remove
.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-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: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
// ----------------------

// @TODO Deprecate / Remove
.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;
    }
  }
}

.btn-group .btn {
  + .btn-success {
    .border(left, 1px, solid, var(--color-content-positive));
  }

  + .btn-primary {
    .border(left, 1px, solid, var(--color-content-accent));
  }
}

.btn-group.btn-block {
  display: inline-flex;
  .clearfix();

  .btn {
    display: block;
    width: 100%;
  }

  .btn-input.btn {
    .text-align(left);

    .caret {
      position: absolute;
      .right(16px);

      top: 16px;
    }

    &.btn-sm .caret {
      .right(8px);
    }

    &.dropdown-toggle {
      .padding(right, 40px, 16px);

      overflow: hidden;
      text-overflow: ellipsis;

      @media (min-width: @screen-sm-min) {
        .padding(right, 48px, 16px);
      }
    }

    &.btn-sm.dropdown-toggle {
      .padding(right, 33px);
    }
  }

  .btn + .dropdown-toggle {
    flex: 0;

    .caret {
      position: relative;
      top: 0;
      .right(0);
    }
  }
}

.btn-block {
  .dropdown-menu {
    width: 100%;

    > li > a {
      overflow: hidden;
      width: 100%;
      text-overflow: ellipsis;
    }
  }
}

.btn-group {
  .dropdown-menu {
    max-height: 90vh;
    max-height: 90svh;
    overflow: auto;
  }

  // allow select input options to wrap into multiple lines
  .btn-input + .dropdown-menu {
    > li > a {
      white-space: normal;
    }
  }

  .np-text-body-default,
  .body-2,
  .small {
    color: var(--color-content-secondary);
  }
}

@media (min-height: 592px) {
  .btn-group .dropdown-menu {
    max-height: 592px; // (12 * 48) + 16 = 592
  }
}

.btn-group .secondary {
  .np-text-body-default;

  color: var(--color-content-secondary);
}
