SnapKit/_sass/bourbon/helpers/_directional-values.scss

97 lines
2.6 KiB
SCSS

@charset "UTF-8";
/// Directional-property mixins are shorthands for writing properties like the following
///
/// @ignore You can also use `false` instead of `null`.
///
/// @param {List} $vals
/// List of directional values
///
/// @example scss - Usage
/// .element {
/// @include border-style(dotted null);
/// @include margin(null 0 10px);
/// }
///
/// @example css - CSS Output
/// .element {
/// border-bottom-style: dotted;
/// border-top-style: dotted;
/// margin-bottom: 10px;
/// margin-left: 0;
/// margin-right: 0;
/// }
///
/// @require {function} contains-falsy
///
/// @return {List}
@function collapse-directionals($vals) {
$output: null;
$a: nth($vals, 1);
$b: if(length($vals) < 2, $a, nth($vals, 2));
$c: if(length($vals) < 3, $a, nth($vals, 3));
$d: if(length($vals) < 2, $a, nth($vals, if(length($vals) < 4, 2, 4)));
@if $a == 0 { $a: 0; }
@if $b == 0 { $b: 0; }
@if $c == 0 { $c: 0; }
@if $d == 0 { $d: 0; }
@if $a == $b and $a == $c and $a == $d { $output: $a; }
@else if $a == $c and $b == $d { $output: $a $b; }
@else if $b == $d { $output: $a $b $c; }
@else { $output: $a $b $c $d; }
@return $output;
}
/// Output directional properties, for instance `margin`.
///
/// @access private
///
/// @param {String} $pre
/// Prefix to use
/// @param {String} $suf
/// Suffix to use
/// @param {List} $vals
/// List of values
///
/// @require {function} collapse-directionals
/// @require {function} contains-falsy
@mixin directional-property($pre, $suf, $vals) {
// Property Names
$top: $pre + "-top" + if($suf, "-#{$suf}", "");
$bottom: $pre + "-bottom" + if($suf, "-#{$suf}", "");
$left: $pre + "-left" + if($suf, "-#{$suf}", "");
$right: $pre + "-right" + if($suf, "-#{$suf}", "");
$all: $pre + if($suf, "-#{$suf}", "");
$vals: collapse-directionals($vals);
@if contains-falsy($vals) {
@if nth($vals, 1) { #{$top}: nth($vals, 1); }
@if length($vals) == 1 {
@if nth($vals, 1) { #{$right}: nth($vals, 1); }
} @else {
@if nth($vals, 2) { #{$right}: nth($vals, 2); }
}
@if length($vals) == 2 {
@if nth($vals, 1) { #{$bottom}: nth($vals, 1); }
@if nth($vals, 2) { #{$left}: nth($vals, 2); }
} @else if length($vals) == 3 {
@if nth($vals, 3) { #{$bottom}: nth($vals, 3); }
@if nth($vals, 2) { #{$left}: nth($vals, 2); }
} @else if length($vals) == 4 {
@if nth($vals, 3) { #{$bottom}: nth($vals, 3); }
@if nth($vals, 4) { #{$left}: nth($vals, 4); }
}
} @else {
#{$all}: $vals;
}
}