// Variable settings for /addons/prefixer.scss
$prefix-for-webkit:    true !default;
$prefix-for-mozilla:   true !default;
$prefix-for-microsoft: true !default;
$prefix-for-opera:     true !default;
$prefix-for-spec:      true !default; // required for keyframe mixin

//************************************************************************//
// Example: @include prefixer(border-radius, $radii, webkit ms spec);
//************************************************************************//
// Variables located in /settings/_prefixer.scss

@mixin prefixer ($property, $value, $prefixes) {
  @each $prefix in $prefixes {
    @if $prefix == webkit {
      @if $prefix-for-webkit {
        -webkit-#{$property}: $value;
      }
    }
    @else if $prefix == moz {
      @if $prefix-for-mozilla {
        -moz-#{$property}: $value;
      }
    }
    @else if $prefix == ms {
      @if $prefix-for-microsoft {
        -ms-#{$property}: $value;
      }
    }
    @else if $prefix == o {
      @if $prefix-for-opera {
        -o-#{$property}: $value;
      }
    }
    @else if $prefix == spec {
      @if $prefix-for-spec {
        #{$property}: $value;
      }
    }
    @else  {
      @warn "Unrecognized prefix: #{$prefix}";
    }
  }
}

@mixin disable-prefix-for-all() {
  $prefix-for-webkit:    false !global;
  $prefix-for-mozilla:   false !global;
  $prefix-for-microsoft: false !global;
  $prefix-for-opera:     false !global;
  $prefix-for-spec:      false !global;
}

@mixin transform($property: none) {
  //  none | <transform-function>
  @include prefixer(transform, $property, webkit moz ms o spec);
}

@mixin transform-origin($axes: 50%) {
  // x-axis - left | center | right  | length | %
  // y-axis - top  | center | bottom | length | %
  // z-axis -                          length
  @include prefixer(transform-origin, $axes, webkit moz ms o spec);
}

@mixin transform-style ($style: flat) {
  @include prefixer(transform-style, $style, webkit moz ms o spec);
}

// Shorthand mixin. Supports multiple parentheses-deliminated values for each variable.
// Example: @include transition (all 2s ease-in-out);
//          @include transition (opacity 1s ease-in 2s, width 2s ease-out);
//          @include transition-property (transform, opacity);

@mixin transition ($properties...) {
  // Fix for vendor-prefix transform property
  $needs-prefixes: false;
  $webkit: ();
  $moz: ();
  $spec: ();

  // Create lists for vendor-prefixed transform
  @each $list in $properties {
    @if nth($list, 1) == "transform" {
      $needs-prefixes: true;
      $list1: -webkit-transform;
      $list2: -moz-transform;
      $list3: ();

      @each $var in $list {
        $list3: join($list3, $var);

        @if $var != "transform" {
          $list1: join($list1, $var);
          $list2: join($list2, $var);
        }
      }

      $webkit: append($webkit, $list1);
      $moz: append($moz,    $list2);
      $spec: append($spec,   $list3);
    }

    // Create lists for non-prefixed transition properties
    @else {
      $webkit:  append($webkit, $list, comma);
      $moz:     append($moz,    $list, comma);
      $spec:    append($spec,   $list, comma);
    }
  }

  @if $needs-prefixes {
    -webkit-transition: $webkit;
    -moz-transition: $moz;
    transition: $spec;
  }
  @else {
    @if length($properties) >= 1 {
      @include prefixer(transition, $properties, webkit moz spec);
    }

    @else {
      $properties: all 0.15s ease-out 0s;
      @include prefixer(transition, $properties, webkit moz spec);
    }
  }
}

@mixin transition-property ($properties...) {
  -webkit-transition-property: transition-property-names($properties, 'webkit');
  -moz-transition-property: transition-property-names($properties, 'moz');
  transition-property: transition-property-names($properties, false);
}

@mixin transition-duration ($times...) {
  @include prefixer(transition-duration, $times, webkit moz spec);
}

@mixin transition-timing-function ($motions...) {
  // ease | linear | ease-in | ease-out | ease-in-out | cubic-bezier()
  @include prefixer(transition-timing-function, $motions, webkit moz spec);
}

@mixin transition-delay ($times...) {
  @include prefixer(transition-delay, $times, webkit moz spec);
}