Update RFS to v8.1.0
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XhmikosR
parent
8dec3d0a34
commit
94b310dc6f
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@ -2,9 +2,9 @@
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// SCSS RFS mixin
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//
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// Automated font-resizing
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// Automated responsive font sizes
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//
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// See https://github.com/twbs/rfs
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// Licensed under MIT (https://github.com/twbs/rfs/blob/v8.x/LICENSE)
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// Configuration
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@ -12,11 +12,19 @@
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$rfs-base-font-size: 1.25rem !default;
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$rfs-font-size-unit: rem !default;
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@if $rfs-font-size-unit != rem and $rfs-font-size-unit != px {
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@error "`#{$rfs-font-size-unit}` is not a valid unit for $rfs-font-size-unit. Use `px` or `rem`.";
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}
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// Breakpoint at where font-size starts decreasing if screen width is smaller
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$rfs-breakpoint: 1200px !default;
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$rfs-breakpoint-unit: px !default;
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// Resize font-size based on screen height and width
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@if $rfs-breakpoint-unit != px and $rfs-breakpoint-unit != em and $rfs-breakpoint-unit != rem {
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@error "`#{$rfs-breakpoint-unit}` is not a valid unit for $rfs-breakpoint-unit. Use `px`, `em` or `rem`.";
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}
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// Resize font size based on screen height and width
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$rfs-two-dimensional: false !default;
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// Factor of decrease
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@ -41,12 +49,54 @@ $enable-responsive-font-sizes: true !default;
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// Cache $rfs-base-font-size unit
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$rfs-base-font-size-unit: unit($rfs-base-font-size);
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@function divide($dividend, $divisor, $precision: 10) {
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$sign: if($dividend > 0 and $divisor > 0 or $dividend < 0 and $divisor < 0, 1, -1);
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$dividend: abs($dividend);
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$divisor: abs($divisor);
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@if $dividend == 0 {
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@return 0;
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}
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@if $divisor == 0 {
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@error "Cannot divide by 0";
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}
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$remainder: $dividend;
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$result: 0;
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$factor: 10;
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@while ($remainder > 0 and $precision >= 0) {
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$quotient: 0;
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@while ($remainder >= $divisor) {
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$remainder: $remainder - $divisor;
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$quotient: $quotient + 1;
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}
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$result: $result * 10 + $quotient;
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$factor: $factor * .1;
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$remainder: $remainder * 10;
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$precision: $precision - 1;
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@if ($precision < 0 and $remainder >= $divisor * 5) {
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$result: $result + 1;
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}
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}
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$result: $result * $factor * $sign;
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$dividend-unit: unit($dividend);
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$divisor-unit: unit($divisor);
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$unit-map: (
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"px": 1px,
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"rem": 1rem,
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"em": 1em,
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"%": 1%
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);
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@if ($dividend-unit != $divisor-unit and map-has-key($unit-map, $dividend-unit)) {
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$result: $result * map-get($unit-map, $dividend-unit);
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}
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@return $result;
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}
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// Remove px-unit from $rfs-base-font-size for calculations
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@if $rfs-base-font-size-unit == "px" {
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$rfs-base-font-size: $rfs-base-font-size / ($rfs-base-font-size * 0 + 1);
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$rfs-base-font-size: divide($rfs-base-font-size, $rfs-base-font-size * 0 + 1);
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}
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@else if $rfs-base-font-size-unit == "rem" {
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$rfs-base-font-size: $rfs-base-font-size / ($rfs-base-font-size * 0 + 1 / $rfs-rem-value);
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$rfs-base-font-size: divide($rfs-base-font-size, divide($rfs-base-font-size * 0 + 1, $rfs-rem-value));
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}
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// Cache $rfs-breakpoint unit to prevent multiple calls
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@ -54,13 +104,55 @@ $rfs-breakpoint-unit-cache: unit($rfs-breakpoint);
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// Remove unit from $rfs-breakpoint for calculations
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@if $rfs-breakpoint-unit-cache == "px" {
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$rfs-breakpoint: $rfs-breakpoint / ($rfs-breakpoint * 0 + 1);
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$rfs-breakpoint: divide($rfs-breakpoint, $rfs-breakpoint * 0 + 1);
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}
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@else if $rfs-breakpoint-unit-cache == "rem" or $rfs-breakpoint-unit-cache == "em" {
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$rfs-breakpoint: $rfs-breakpoint / ($rfs-breakpoint * 0 + 1 / $rfs-rem-value);
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$rfs-breakpoint: divide($rfs-breakpoint, divide($rfs-breakpoint * 0 + 1, $rfs-rem-value));
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}
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// Responsive font-size mixin
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// Internal mixin that adds disable classes to the selector if needed.
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@mixin _rfs-disable-class {
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@if $rfs-class == "disable" {
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// Adding an extra class increases specificity, which prevents the media query to override the font size
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&,
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.disable-responsive-font-size &,
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&.disable-responsive-font-size {
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@content;
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}
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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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// Internal mixin that adds enable classes to the selector if needed.
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@mixin _rfs-enable-class {
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@if $rfs-class == "enable" {
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.enable-responsive-font-size &,
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&.enable-responsive-font-size {
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@content;
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}
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}
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@else {
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@content;
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}
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}
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// Internal mixin used to determine which media query needs to be used
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@mixin _rfs-media-query($mq-value) {
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@if $rfs-two-dimensional {
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@media (max-width: #{$mq-value}), (max-height: #{$mq-value}) {
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@content;
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}
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}
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@else {
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@media (max-width: #{$mq-value}) {
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@content;
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}
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}
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}
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// Responsive font size mixin
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@mixin rfs($fs, $important: false) {
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// Cache $fs unit
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$fs-unit: if(type-of($fs) == "number", unit($fs), false);
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@ -73,128 +165,60 @@ $rfs-breakpoint-unit-cache: unit($rfs-breakpoint);
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font-size: #{$fs}#{$rfs-suffix};
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}
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@else {
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// Variables for storing static and fluid rescaling
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$rfs-static: null;
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$rfs-fluid: null;
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// Remove px-unit from $fs for calculations
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// Remove unit from $fs for calculations
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@if $fs-unit == "px" {
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$fs: $fs / ($fs * 0 + 1);
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$fs: divide($fs, $fs * 0 + 1);
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}
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@else if $fs-unit == "rem" {
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$fs: $fs / ($fs * 0 + 1 / $rfs-rem-value);
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$fs: divide($fs, divide($fs * 0 + 1, $rfs-rem-value));
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}
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// Set default font-size
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@if $rfs-font-size-unit == rem {
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$rfs-static: #{$fs / $rfs-rem-value}rem#{$rfs-suffix};
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}
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@else if $rfs-font-size-unit == px {
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$rfs-static: #{$fs}px#{$rfs-suffix};
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// Set default font size
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$rfs-static: if($rfs-font-size-unit == rem, #{divide($fs, $rfs-rem-value)}rem, #{$fs}px);
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// Only add the media query if the font size is bigger than the minimum font size
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@if $fs <= $rfs-base-font-size or not $enable-responsive-font-sizes {
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font-size: #{$rfs-static}#{$rfs-suffix};
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}
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@else {
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@error "`#{$rfs-font-size-unit}` is not a valid unit for $rfs-font-size-unit. Use `px` or `rem`.";
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}
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// Calculate the minimum font size for $fs
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$fs-min: $rfs-base-font-size + divide($fs - $rfs-base-font-size, $rfs-factor);
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// Only add media query if font-size is bigger as the minimum font-size
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// If $rfs-factor == 1, no rescaling will take place
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@if $fs > $rfs-base-font-size and $enable-responsive-font-sizes {
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$min-width: null;
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$variable-unit: null;
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// Calculate minimum font-size for given font-size
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$fs-min: $rfs-base-font-size + ($fs - $rfs-base-font-size) / $rfs-factor;
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// Calculate difference between given font-size and minimum font-size for given font-size
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// Calculate difference between $fs and the minimum font size
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$fs-diff: $fs - $fs-min;
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// Base font-size formatting
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// No need to check if the unit is valid, because we did that before
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$min-width: if($rfs-font-size-unit == rem, #{$fs-min / $rfs-rem-value}rem, #{$fs-min}px);
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$min-width: if($rfs-font-size-unit == rem, #{divide($fs-min, $rfs-rem-value)}rem, #{$fs-min}px);
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// If two-dimensional, use smallest of screen width and height
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// Use `vmin` if two-dimensional is enabled
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$variable-unit: if($rfs-two-dimensional, vmin, vw);
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// Calculate the variable width between 0 and $rfs-breakpoint
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$variable-width: #{$fs-diff * 100 / $rfs-breakpoint}#{$variable-unit};
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$variable-width: #{divide($fs-diff * 100, $rfs-breakpoint)}#{$variable-unit};
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// Set the calculated font-size.
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// Set the calculated font-size
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$rfs-fluid: calc(#{$min-width} + #{$variable-width}) #{$rfs-suffix};
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}
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// Rendering
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@if $rfs-fluid == null {
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// Only render static font-size if no fluid font-size is available
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font-size: $rfs-static;
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}
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@else {
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$mq-value: null;
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// Breakpoint formatting
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$mq-value: if($rfs-breakpoint-unit == px, #{$rfs-breakpoint}px, #{divide($rfs-breakpoint, $rfs-rem-value)}#{$rfs-breakpoint-unit});
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// RFS breakpoint formatting
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@if $rfs-breakpoint-unit == em or $rfs-breakpoint-unit == rem {
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$mq-value: #{$rfs-breakpoint / $rfs-rem-value}#{$rfs-breakpoint-unit};
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}
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@else if $rfs-breakpoint-unit == px {
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$mq-value: #{$rfs-breakpoint}px;
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}
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@else {
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@error "`#{$rfs-breakpoint-unit}` is not a valid unit for $rfs-breakpoint-unit. Use `px`, `em` or `rem`.";
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@include _rfs-disable-class {
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font-size: #{$rfs-static}#{$rfs-suffix};
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}
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@if $rfs-class == "disable" {
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// Adding an extra class increases specificity,
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// which prevents the media query to override the font size
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&,
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.disable-responsive-font-size &,
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&.disable-responsive-font-size {
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font-size: $rfs-static;
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@include _rfs-media-query($mq-value) {
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@include _rfs-enable-class {
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font-size: $rfs-fluid;
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}
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}
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@else {
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font-size: $rfs-static;
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}
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@if $rfs-two-dimensional {
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@media (max-width: #{$mq-value}), (max-height: #{$mq-value}) {
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@if $rfs-class == "enable" {
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.enable-responsive-font-size &,
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&.enable-responsive-font-size {
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font-size: $rfs-fluid;
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}
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}
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@else {
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font-size: $rfs-fluid;
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}
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@if $rfs-safari-iframe-resize-bug-fix {
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// stylelint-disable-next-line length-zero-no-unit
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min-width: 0vw;
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}
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}
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}
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@else {
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@media (max-width: #{$mq-value}) {
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@if $rfs-class == "enable" {
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.enable-responsive-font-size &,
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&.enable-responsive-font-size {
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font-size: $rfs-fluid;
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}
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}
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@else {
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font-size: $rfs-fluid;
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}
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@if $rfs-safari-iframe-resize-bug-fix {
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// stylelint-disable-next-line length-zero-no-unit
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min-width: 0vw;
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}
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}
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// Include safari iframe resize fix if needed
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min-width: if($rfs-safari-iframe-resize-bug-fix, (0 * 1vw), null);
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}
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}
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}
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}
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// The font-size & responsive-font-size mixin uses RFS to rescale font sizes
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// The font-size & responsive-font-size mixins use RFS to rescale the font size
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@mixin font-size($fs, $important: false) {
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@include rfs($fs, $important);
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}
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