@import "compass/css3/shared";

$legacy-support-for-ie6: true !default;
$legacy-support-for-ie7: true !default;

$box-sizing-extend: true !default;
$toolkit-box-sizing: true;

//////////////////////////////
// Updated Box Sizing mixin, allowing for behavior support
//////////////////////////////
@mixin box-sizing($bs, $extend: $box-sizing-extend) {
  @if $extend and $bs == 'border-box' {
    @extend %border-box;
  }
  @else if $extend and $bs == 'content-box' {
    @extend %content-box;
  }
  @else {
    $bs: unquote($bs);
    @include experimental(box-sizing, $bs,
      -moz, -webkit, not -o, not -ms, not -khtml, official
    );

    @if $bs == 'border-box' {
      @if $legacy-support-for-ie6 or $legacy-support-for-ie7 {
        *behavior: stylesheet-url("../behaviors/box-sizing/boxsizing.php");
      }
    }
    @else {
      *behavior: none;
    }
  }
}

%border-box {
  @include box-sizing('border-box', false);
}

%content-box {
  @include box-sizing('content-box', false);
}