--- /dev/null
+// 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);
+}
projects / roojs1 / blobdiff