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// breakpoints.scss v1.0 | @ajlkn | MIT licensed */
// Vars.
/// Breakpoints.
/// @var {list}
$breakpoints: () !global;
// Mixins.
/// Sets breakpoints.
/// @param {map} $x Breakpoints.
@mixin breakpoints($x: ()) {
$breakpoints: $x !global;
}
/// Wraps @content in a @media block targeting a specific orientation.
/// @param {string} $orientation Orientation.
@mixin orientation($orientation) {
@media screen and (orientation: #{$orientation}) {
@content;
}
}
/// Wraps @content in a @media block using a given query.
/// @param {string} $query Query.
@mixin breakpoint($query: null) {
$breakpoint: null;
$op: null;
$media: null;
// Determine operator, breakpoint.
// Greater than or equal.
@if (str-slice($query, 0, 2) == '>=') {
$op: 'gte';
$breakpoint: str-slice($query, 3);
}
// Less than or equal.
@elseif (str-slice($query, 0, 2) == '<=') {
$op: 'lte';
$breakpoint: str-slice($query, 3);
}
// Greater than.
@elseif (str-slice($query, 0, 1) == '>') {
$op: 'gt';
$breakpoint: str-slice($query, 2);
}
// Less than.
@elseif (str-slice($query, 0, 1) == '<') {
$op: 'lt';
$breakpoint: str-slice($query, 2);
}
// Not.
@elseif (str-slice($query, 0, 1) == '!') {
$op: 'not';
$breakpoint: str-slice($query, 2);
}
// Equal.
@else {
$op: 'eq';
$breakpoint: $query;
}
// Build media.
@if ($breakpoint and map-has-key($breakpoints, $breakpoint)) {
$a: map-get($breakpoints, $breakpoint);
// Range.
@if (type-of($a) == 'list') {
$x: nth($a, 1);
$y: nth($a, 2);
// Max only.
@if ($x == null) {
// Greater than or equal (>= 0 / anything)
@if ($op == 'gte') {
$media: 'screen';
}
// Less than or equal (<= y)
@elseif ($op == 'lte') {
$media: 'screen and (max-width: ' + $y + ')';
}
// Greater than (> y)
@elseif ($op == 'gt') {
$media: 'screen and (min-width: ' + ($y + 1) + ')';
}
// Less than (< 0 / invalid)
@elseif ($op == 'lt') {
$media: 'screen and (max-width: -1px)';
}
// Not (> y)
@elseif ($op == 'not') {
$media: 'screen and (min-width: ' + ($y + 1) + ')';
}
// Equal (<= y)
@else {
$media: 'screen and (max-width: ' + $y + ')';
}
}
// Min only.
@else if ($y == null) {
// Greater than or equal (>= x)
@if ($op == 'gte') {
$media: 'screen and (min-width: ' + $x + ')';
}
// Less than or equal (<= inf / anything)
@elseif ($op == 'lte') {
$media: 'screen';
}
// Greater than (> inf / invalid)
@elseif ($op == 'gt') {
$media: 'screen and (max-width: -1px)';
}
// Less than (< x)
@elseif ($op == 'lt') {
$media: 'screen and (max-width: ' + ($x - 1) + ')';
}
// Not (< x)
@elseif ($op == 'not') {
$media: 'screen and (max-width: ' + ($x - 1) + ')';
}
// Equal (>= x)
@else {
$media: 'screen and (min-width: ' + $x + ')';
}
}
// Min and max.
@else {
// Greater than or equal (>= x)
@if ($op == 'gte') {
$media: 'screen and (min-width: ' + $x + ')';
}
// Less than or equal (<= y)
@elseif ($op == 'lte') {
$media: 'screen and (max-width: ' + $y + ')';
}
// Greater than (> y)
@elseif ($op == 'gt') {
$media: 'screen and (min-width: ' + ($y + 1) + ')';
}
// Less than (< x)
@elseif ($op == 'lt') {
$media: 'screen and (max-width: ' + ($x - 1) + ')';
}
// Not (< x and > y)
@elseif ($op == 'not') {
$media: 'screen and (max-width: ' + ($x - 1) + '), screen and (min-width: ' + ($y + 1) + ')';
}
// Equal (>= x and <= y)
@else {
$media: 'screen and (min-width: ' + $x + ') and (max-width: ' + $y + ')';
}
}
}
// String.
@else {
// Missing a media type? Prefix with "screen".
@if (str-slice($a, 0, 1) == '(') {
$media: 'screen and ' + $a;
}
// Otherwise, use as-is.
@else {
$media: $a;
}
}
}
// Output.
@media #{$media} {
@content;
}
}