bigbluebutton-Github/bigbluebutton-html5/imports/ui/components/button/styles.scss

@import "../../stylesheets/variables/_all";

$btn-default-color: $color-gray;
$btn-default-bg: $color-white;
$btn-default-border: $color-white;

$btn-primary-color: $color-white;
$btn-primary-bg: $color-primary;
$btn-primary-border: $color-primary;

$btn-success-color: $color-white;
$btn-success-bg: $color-success;
$btn-success-border: $color-success;

$btn-danger-color: $color-white;
$btn-danger-bg: $color-danger;
$btn-danger-border: $color-danger;

$btn-border-size: $border-size;
$btn-border-radius: $border-radius;
$btn-font-weight: 600;
$btn-spacing: .35rem;

$btn-sm-font-size: $font-size-small * .85;
$btn-sm-padding: $sm-padding-y $sm-padding-x;

$btn-md-font-size: $font-size-base * .85;
$btn-md-padding: $md-padding-y $md-padding-x;

$btn-lg-font-size: $font-size-large * .85;
$btn-lg-padding: $lg-padding-y $lg-padding-x;

$btn-jumbo-font-size: 3rem;
$btn-jumbo-padding: $jumbo-padding-y $jumbo-padding-x;

/* Base
 * ==========
 */
.button {
  border: $btn-border-size solid transparent;
  border-radius: $btn-border-radius;
  font-weight: $btn-font-weight;
  display: inline-block;
  border-style: solid;
  line-height: 1.5;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  transition: all .2s ease-in-out;
  //box-shadow: inset 0 1px 0 rgba(255, 255, 255, .15), 0 1px 1px rgba(0, 0, 0, .075);

  &,
  &:active {
    &:focus {
      outline: thin dotted;
      outline: 5px auto -webkit-focus-ring-color;
      outline-offset: -2px;
    }
  }

  &:hover,
  &:focus {
    text-decoration: none;
  }

  &:active {
    background-image: none;
    outline: 0;
    //box-shadow: inset 0 3px 5px rgba(0, 0, 0, .125);
  }

  &[aria-disabled="true"] {
    cursor: not-allowed;
    opacity: .65;
    box-shadow: none;
    pointer-events: none;
  }
}

.buttonWrapper {
  display: inline-block;
  line-height: 1.5;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  background: none;
  border: 0;
  padding: 0 !important;

  &:active {
    &:focus {
      outline: thin dotted;
      outline: 5px auto -webkit-focus-ring-color;
      outline-offset: -2px;
    }
  }
}

.label {
  .buttonWrapper & {
    opacity: .85;
    display: block;
    margin-top: $btn-spacing;
    font-size: 90%;
    color: #fff;
    font-weight: normal;
    line-height: 1.5;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
  }

  .buttonWrapper.sm & {
    display: inline-block;
    margin-top: 0;
    margin-left: $btn-spacing;
  }

  & + .icon,
  & + .button  {
    margin-left: $btn-spacing;
  }
}

.hideLabel {
  font-size: 0;
  height: 0;
  width: 0;
  margin: 0 !important;
  padding: 0 !important;
  overflow: hidden;
  display: block;
}

.icon {
  width: 1.28571429em;
  text-align: center;
  color: #fff;

  .buttonWrapper & {
    font-size: 125%;
  }

  & + .label {
    margin-left: $btn-spacing;
  }
}

/* Colors
 * ==========
 */

@mixin button-variant($color, $background, $border) {
  $active-background: darken($background, 10%);
  $active-border: darken($border, 12%);

  color: $color;
  background-color: $background;
  border-color: $border;

  &:hover,
  &:focus,
  .buttonWrapper:hover &,
  .buttonWrapper:focus & {
    color: $color;
    background-color: $active-background;
    border-color: $active-border;
  }

  &:active,
  .buttonWrapper:active & {
    color: $color;
    background-color: $active-background;
    border-color: $active-border;
    background-image: none;

    &:hover,
    &:focus {
      color: $color;
      background-color: darken($background, 17%);
      border-color: darken($border, 25%);
    }
  }
}

@mixin button-ghost-variant($color, $variant) {
  color: $color;
  background-image: none;
  background-color: transparent;
  border-color: $color;

  &:focus,
  &:hover,
  .buttonWrapper:hover &,
  .buttonWrapper:focus & {
    color: $variant;
    background-color: $color;
    border-color: $color;
  }

  &:active,
  .buttonWrapper:active & {
    color: $variant;
    background-color: $color;
    border-color: $color;

    &:hover,
    &:focus {
      color: $variant;
      background-color: darken($color, 17%);
      border-color: darken($color, 25%);
    }
  }
}

.default {
  @include button-variant($btn-default-color, $btn-default-bg, $btn-default-border);
}

.primary {
  @include button-variant($btn-primary-color, $btn-primary-bg, $btn-primary-border);
}

.success {
  @include button-variant($btn-success-color, $btn-success-bg, $btn-success-border);
}

.danger {
  @include button-variant($btn-danger-color, $btn-danger-bg, $btn-danger-border);
}


/* Styles
 * ==========
 */

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

.ghost {
  &.default {
    @include button-ghost-variant($btn-default-bg, $btn-default-color);
  }

  &.primary {
    @include button-ghost-variant($btn-primary-bg, $btn-primary-color);
  }

  &.success {
    @include button-ghost-variant($btn-success-bg, $btn-success-color);
  }

  &.danger {
    @include button-ghost-variant($btn-danger-bg, $btn-danger-color);
  }
}

.circle {
  $btn-sm-padding-x: nth($btn-sm-padding, 2) / 2.75;
  $btn-md-padding-x: nth($btn-md-padding, 2) / 2.75;
  $btn-lg-padding-x: nth($btn-lg-padding, 2) / 2.75;
  $btn-jumbo-padding-x: nth($btn-jumbo-padding, 2) / 2.75;

  border-radius: 50%;

  &.sm {
    padding-right: $btn-sm-padding-x;
    padding-left: $btn-sm-padding-x;
  }

  &.md {
    padding-right: $btn-md-padding-x;
    padding-left: $btn-md-padding-x;
  }

  &.lg {
    padding-right: $btn-lg-padding-x;
    padding-left: $btn-lg-padding-x;
  }

  &.jumbo {
    padding-right: $btn-jumbo-padding-x;
    padding-left: $btn-jumbo-padding-x;
  }
}

/* Sizes
 * ==========
 */

.sm {
  font-size: $btn-sm-font-size;
  padding: $btn-sm-padding;
}

.md {
  font-size: $btn-md-font-size;
  padding: $btn-md-padding;
}

.lg {
  font-size: $btn-lg-font-size;
  padding: $btn-lg-padding;
}

.jumbo {
  font-size: $btn-jumbo-font-size;
  padding: $btn-jumbo-padding;
}