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