diff options
Diffstat (limited to 'themes/hugo-whisper-theme/assets/scss/bootstrap/vendor')
| -rwxr-xr-x | themes/hugo-whisper-theme/assets/scss/bootstrap/vendor/_rfs.scss | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/themes/hugo-whisper-theme/assets/scss/bootstrap/vendor/_rfs.scss b/themes/hugo-whisper-theme/assets/scss/bootstrap/vendor/_rfs.scss new file mode 100755 index 0000000..497e07e --- /dev/null +++ b/themes/hugo-whisper-theme/assets/scss/bootstrap/vendor/_rfs.scss @@ -0,0 +1,204 @@ +// stylelint-disable property-blacklist, scss/dollar-variable-default + +// SCSS RFS mixin +// +// Automated font-resizing +// +// See https://github.com/twbs/rfs + +// Configuration + +// Base font size +$rfs-base-font-size: 1.25rem !default; +$rfs-font-size-unit: rem !default; + +// Breakpoint at where font-size starts decreasing if screen width is smaller +$rfs-breakpoint: 1200px !default; +$rfs-breakpoint-unit: px !default; + +// Resize font-size based on screen height and width +$rfs-two-dimensional: false !default; + +// Factor of decrease +$rfs-factor: 10 !default; + +@if type-of($rfs-factor) != "number" or $rfs-factor <= 1 { + @error "`#{$rfs-factor}` is not a valid $rfs-factor, it must be greater than 1."; +} + +// Generate enable or disable classes. Possibilities: false, "enable" or "disable" +$rfs-class: false !default; + +// 1 rem = $rfs-rem-value px +$rfs-rem-value: 16 !default; + +// Safari iframe resize bug: https://github.com/twbs/rfs/issues/14 +$rfs-safari-iframe-resize-bug-fix: false !default; + +// Disable RFS by setting $enable-responsive-font-sizes to false +$enable-responsive-font-sizes: true !default; + +// Cache $rfs-base-font-size unit +$rfs-base-font-size-unit: unit($rfs-base-font-size); + +// Remove px-unit from $rfs-base-font-size for calculations +@if $rfs-base-font-size-unit == "px" { + $rfs-base-font-size: $rfs-base-font-size / ($rfs-base-font-size * 0 + 1); +} +@else if $rfs-base-font-size-unit == "rem" { + $rfs-base-font-size: $rfs-base-font-size / ($rfs-base-font-size * 0 + 1 / $rfs-rem-value); +} + +// Cache $rfs-breakpoint unit to prevent multiple calls +$rfs-breakpoint-unit-cache: unit($rfs-breakpoint); + +// Remove unit from $rfs-breakpoint for calculations +@if $rfs-breakpoint-unit-cache == "px" { + $rfs-breakpoint: $rfs-breakpoint / ($rfs-breakpoint * 0 + 1); +} +@else if $rfs-breakpoint-unit-cache == "rem" or $rfs-breakpoint-unit-cache == "em" { + $rfs-breakpoint: $rfs-breakpoint / ($rfs-breakpoint * 0 + 1 / $rfs-rem-value); +} + +// Responsive font-size mixin +@mixin rfs($fs, $important: false) { + // Cache $fs unit + $fs-unit: if(type-of($fs) == "number", unit($fs), false); + + // Add !important suffix if needed + $rfs-suffix: if($important, " !important", ""); + + // If $fs isn't a number (like inherit) or $fs has a unit (not px or rem, like 1.5em) or $ is 0, just print the value + @if not $fs-unit or $fs-unit != "" and $fs-unit != "px" and $fs-unit != "rem" or $fs == 0 { + font-size: #{$fs}#{$rfs-suffix}; + } + @else { + // Variables for storing static and fluid rescaling + $rfs-static: null; + $rfs-fluid: null; + + // Remove px-unit from $fs for calculations + @if $fs-unit == "px" { + $fs: $fs / ($fs * 0 + 1); + } + @else if $fs-unit == "rem" { + $fs: $fs / ($fs * 0 + 1 / $rfs-rem-value); + } + + // Set default font-size + @if $rfs-font-size-unit == rem { + $rfs-static: #{$fs / $rfs-rem-value}rem#{$rfs-suffix}; + } + @else if $rfs-font-size-unit == px { + $rfs-static: #{$fs}px#{$rfs-suffix}; + } + @else { + @error "`#{$rfs-font-size-unit}` is not a valid unit for $rfs-font-size-unit. Use `px` or `rem`."; + } + + // Only add media query if font-size is bigger as the minimum font-size + // If $rfs-factor == 1, no rescaling will take place + @if $fs > $rfs-base-font-size and $enable-responsive-font-sizes { + $min-width: null; + $variable-unit: null; + + // Calculate minimum font-size for given font-size + $fs-min: $rfs-base-font-size + ($fs - $rfs-base-font-size) / $rfs-factor; + + // Calculate difference between given font-size and minimum font-size for given font-size + $fs-diff: $fs - $fs-min; + + // Base font-size formatting + // No need to check if the unit is valid, because we did that before + $min-width: if($rfs-font-size-unit == rem, #{$fs-min / $rfs-rem-value}rem, #{$fs-min}px); + + // If two-dimensional, use smallest of screen width and height + $variable-unit: if($rfs-two-dimensional, vmin, vw); + + // Calculate the variable width between 0 and $rfs-breakpoint + $variable-width: #{$fs-diff * 100 / $rfs-breakpoint}#{$variable-unit}; + + // Set the calculated font-size. + $rfs-fluid: calc(#{$min-width} + #{$variable-width}) #{$rfs-suffix}; + } + + // Rendering + @if $rfs-fluid == null { + // Only render static font-size if no fluid font-size is available + font-size: $rfs-static; + } + @else { + $mq-value: null; + + // RFS breakpoint formatting + @if $rfs-breakpoint-unit == em or $rfs-breakpoint-unit == rem { + $mq-value: #{$rfs-breakpoint / $rfs-rem-value}#{$rfs-breakpoint-unit}; + } + @else if $rfs-breakpoint-unit == px { + $mq-value: #{$rfs-breakpoint}px; + } + @else { + @error "`#{$rfs-breakpoint-unit}` is not a valid unit for $rfs-breakpoint-unit. Use `px`, `em` or `rem`."; + } + + @if $rfs-class == "disable" { + // Adding an extra class increases specificity, + // which prevents the media query to override the font size + &, + .disable-responsive-font-size &, + &.disable-responsive-font-size { + font-size: $rfs-static; + } + } + @else { + font-size: $rfs-static; + } + + @if $rfs-two-dimensional { + @media (max-width: #{$mq-value}), (max-height: #{$mq-value}) { + @if $rfs-class == "enable" { + .enable-responsive-font-size &, + &.enable-responsive-font-size { + font-size: $rfs-fluid; + } + } + @else { + font-size: $rfs-fluid; + } + + @if $rfs-safari-iframe-resize-bug-fix { + // stylelint-disable-next-line length-zero-no-unit + min-width: 0vw; + } + } + } + @else { + @media (max-width: #{$mq-value}) { + @if $rfs-class == "enable" { + .enable-responsive-font-size &, + &.enable-responsive-font-size { + font-size: $rfs-fluid; + } + } + @else { + font-size: $rfs-fluid; + } + + @if $rfs-safari-iframe-resize-bug-fix { + // stylelint-disable-next-line length-zero-no-unit + min-width: 0vw; + } + } + } + } + } +} + +// The font-size & responsive-font-size mixin uses RFS to rescale font sizes +@mixin font-size($fs, $important: false) { + @include rfs($fs, $important); +} + +@mixin responsive-font-size($fs, $important: false) { + @include rfs($fs, $important); +} |