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Diffstat (limited to 'assets/stylesheets/bootstrap/mixins/_breakpoints.scss')
-rw-r--r-- | assets/stylesheets/bootstrap/mixins/_breakpoints.scss | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/assets/stylesheets/bootstrap/mixins/_breakpoints.scss b/assets/stylesheets/bootstrap/mixins/_breakpoints.scss new file mode 100644 index 0000000..790bb73 --- /dev/null +++ b/assets/stylesheets/bootstrap/mixins/_breakpoints.scss @@ -0,0 +1,76 @@ +// Breakpoint viewport sizes and media queries. +// +// Breakpoints are defined as a map of (name: minimum width), order from small to large: +// +// (xs: 0, sm: 34rem, md: 45rem) +// +// The map defined in the `$grid-breakpoints` global variable is used as the `$breakpoints` argument by default. + +// Name of the next breakpoint, or null for the last breakpoint. +// +// >> breakpoint-next(sm) +// md +// >> breakpoint-next(sm, $breakpoints: (xs: 0, sm: 34rem, md: 45rem)) +// md +// >> breakpoint-next(sm, $breakpoint-names: (xs sm md)) +// md +@function breakpoint-next($name, $breakpoints: $grid-breakpoints, $breakpoint-names: map-keys($breakpoints)) { + $n: index($breakpoint-names, $name); + @return if($n < length($breakpoint-names), nth($breakpoint-names, $n + 1), null); +} + +// Minimum breakpoint width. Null for the smallest (first) breakpoint. +// +// >> breakpoint-min(sm, (xs: 0, sm: 34rem, md: 45rem)) +// 34rem +@function breakpoint-min($name, $breakpoints: $grid-breakpoints) { + $min: map-get($breakpoints, $name); + @return if($min != 0, $min, null); +} + +// Maximum breakpoint width. Null for the largest (last) breakpoint. +// The maximum value is calculated as the minimum of the next one less 0.1. +// +// >> breakpoint-max(sm, (xs: 0, sm: 34rem, md: 45rem)) +// 44.9rem +@function breakpoint-max($name, $breakpoints: $grid-breakpoints) { + $next: breakpoint-next($name, $breakpoints); + @return if($next, breakpoint-min($next, $breakpoints) - 0.1, null); +} + +// Media of at least the minimum breakpoint width. No query for the smallest breakpoint. +// Makes the @content apply to the given breakpoint and wider. +@mixin media-breakpoint-up($name, $breakpoints: $grid-breakpoints) { + $min: breakpoint-min($name, $breakpoints); + @if $min { + @media (min-width: $min) { + @content; + } + } @else { + @content; + } +} + +// Media of at most the maximum breakpoint width. No query for the largest breakpoint. +// Makes the @content apply to the given breakpoint and narrower. +@mixin media-breakpoint-down($name, $breakpoints: $grid-breakpoints) { + $max: breakpoint-max($name, $breakpoints); + @if $max { + @media (max-width: $max) { + @content; + } + } @else { + @content; + } +} + +// Media between the breakpoint's minimum and maximum widths. +// No minimum for the smallest breakpoint, and no maximum for the largest one. +// Makes the @content apply only to the given breakpoint, not viewports any wider or narrower. +@mixin media-breakpoint-only($name, $breakpoints: $grid-breakpoints) { + @include media-breakpoint-up($name, $breakpoints) { + @include media-breakpoint-down($name, $breakpoints) { + @content; + } + } +} |