// Return vendor-prefixed property names if appropriate
// Example: transition-property-names((transform, color, background), moz) -> -moz-transform, color, background
//************************************************************************//
@function transition-property-names($props, $vendor: false) {
  @if $output-bourbon-deprecation-warnings == true {
    @warn "[Bourbon] [Deprecation] `transition-property-names` is deprecated " +
    "and will be removed in 5.0.0.";
  }

  $user-deprecation-warnings-setting: $output-bourbon-deprecation-warnings;
  $output-bourbon-deprecation-warnings: false !global;

  $new-props: ();

  @each $prop in $props {
    $new-props: append($new-props, transition-property-name($prop, $vendor), comma);
  }

  $output-bourbon-deprecation-warnings: $user-deprecation-warnings-setting !global;

  @return $new-props;
}

@function transition-property-name($prop, $vendor: false) {
  @if $output-bourbon-deprecation-warnings == true {
    @warn "[Bourbon] [Deprecation] `transition-property-name` is deprecated " +
    "and will be removed in 5.0.0.";
  }

  // put other properties that need to be prefixed here aswell
  @if $vendor and $prop == transform {
    @return unquote('-'+$vendor+'-'+$prop);
  }
  @else {
    @return $prop;
  }
}