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95 lines
3.3 KiB
95 lines
3.3 KiB
// Breakpoint viewport sizes and media queries.
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//
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// Breakpoints are defined as a map of (name: minimum width), order from small to large:
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//
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// (xs: 0, sm: 576px, md: 768px)
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//
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// The map defined in the `$grid-breakpoints` global variable is used as the `$breakpoints` argument by default.
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// Name of the next breakpoint, or null for the last breakpoint.
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//
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// >> breakpoint-next(sm)
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// md
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// >> breakpoint-next(sm, (xs: 0, sm: 576px, md: 768px))
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// md
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// >> breakpoint-next(sm, $breakpoint-names: (xs sm md))
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// md
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@function breakpoint-next($name, $breakpoints: $grid-breakpoints, $breakpoint-names: map-keys($breakpoints)) {
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$n: index($breakpoint-names, $name);
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@return if($n < length($breakpoint-names), nth($breakpoint-names, $n + 1), null);
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}
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// Minimum breakpoint width. Null for the smallest (first) breakpoint.
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//
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// >> breakpoint-min(sm, (xs: 0, sm: 576px, md: 768px))
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// 576px
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@function breakpoint-min($name, $breakpoints: $grid-breakpoints) {
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$min: map-get($breakpoints, $name);
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@return if($min != 0, $min, null);
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}
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// Maximum breakpoint width. Null for the largest (last) breakpoint.
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// The maximum value is calculated as the minimum of the next one less 0.1.
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//
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// >> breakpoint-max(sm, (xs: 0, sm: 576px, md: 768px))
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// 767px
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@function breakpoint-max($name, $breakpoints: $grid-breakpoints) {
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$next: breakpoint-next($name, $breakpoints);
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@return if($next, breakpoint-min($next, $breakpoints) - 1px, null);
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}
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// Returns a blank string if smallest breakpoint, otherwise returns the name with a dash infront.
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// Useful for making responsive utilities.
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//
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// >> breakpoint-infix(xs, (xs: 0, sm: 576px, md: 768px))
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// "" (Returns a blank string)
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// >> breakpoint-infix(sm, (xs: 0, sm: 576px, md: 768px))
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// "-sm"
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@function breakpoint-infix($name, $breakpoints: $grid-breakpoints) {
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@return if(breakpoint-min($name, $breakpoints) == null, "", "-#{$name}");
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}
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// Media of at least the minimum breakpoint width. No query for the smallest breakpoint.
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// Makes the @content apply to the given breakpoint and wider.
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@mixin media-breakpoint-up($name, $breakpoints: $grid-breakpoints) {
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$min: breakpoint-min($name, $breakpoints);
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@if $min {
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@media (min-width: $min) {
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@content;
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}
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} @else {
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@content;
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}
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}
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// Media of at most the maximum breakpoint width. No query for the largest breakpoint.
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// Makes the @content apply to the given breakpoint and narrower.
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@mixin media-breakpoint-down($name, $breakpoints: $grid-breakpoints) {
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$max: breakpoint-max($name, $breakpoints);
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@if $max {
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@media (max-width: $max) {
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@content;
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}
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} @else {
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@content;
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}
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}
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// Media that spans multiple breakpoint widths.
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// Makes the @content apply between the min and max breakpoints
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@mixin media-breakpoint-between($lower, $upper, $breakpoints: $grid-breakpoints) {
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@include media-breakpoint-up($lower, $breakpoints) {
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@include media-breakpoint-down($upper, $breakpoints) {
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@content;
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}
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}
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}
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// Media between the breakpoint's minimum and maximum widths.
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// No minimum for the smallest breakpoint, and no maximum for the largest one.
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// Makes the @content apply only to the given breakpoint, not viewports any wider or narrower.
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@mixin media-breakpoint-only($name, $breakpoints: $grid-breakpoints) {
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@include media-breakpoint-between($name, $name, $breakpoints) {
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@content;
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}
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}
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