_mixins.scss

@mixin margin-selectors($before:1em, $after:1em, $start:0px, $end:0px) {
  -webkit-margin-before: $before;
  -webkit-margin-after: $after;
  -webkit-margin-start: $start;
  -webkit-margin-end: $end;
}

@mixin not-selectable($value:none) {
  -webkit-touch-callout: $value;
  -webkit-user-select: $value;
  -khtml-user-select: $value;
  -moz-user-select: $value;
  -ms-user-select: $value;
  user-select: $value;
}

@mixin input-placeholder-color($color) {
  &::-webkit-input-placeholder,
  &::-moz-placeholder, /* Firefox 19+ */
  &:-moz-placeholder, /* Firefox 18- */
  &:-ms-input-placeholder {
    color: $color;
  }
}

@mixin pie-clearfix {
  &:after {
    content: '';
    display: table;
    clear: both;
  }
}

@function map-to-string($map) {
  $map-str: '{';
  $keys: map-keys($map);
  $len: length($keys);
  @for $i from 1 through $len {
    $key: nth($keys, $i);
    $value: map-get($map, $key);
    $map-str: $map-str + '_' + $key + '_: _' + map-get($map, $key) + '_';
    @if $i != $len {
      $map-str: $map-str + ',';
    }
  }
  @return $map-str + '}';
}


/* mixin definition ; sets LTR and RTL within the same style call */
@mixin rtl($prop, $value, $rtl-value) {
  #{$prop}: $value;
  html[dir=rtl] & {
    #{$prop}: $rtl-value;
  }
}