diff options
Diffstat (limited to 'assets/stylesheets/bootstrap/vendor/_rfs.scss')
-rw-r--r-- | assets/stylesheets/bootstrap/vendor/_rfs.scss | 360 |
1 files changed, 234 insertions, 126 deletions
diff --git a/assets/stylesheets/bootstrap/vendor/_rfs.scss b/assets/stylesheets/bootstrap/vendor/_rfs.scss index 497e07e..798753e 100644 --- a/assets/stylesheets/bootstrap/vendor/_rfs.scss +++ b/assets/stylesheets/bootstrap/vendor/_rfs.scss @@ -2,30 +2,41 @@ // SCSS RFS mixin // -// Automated font-resizing +// Automated responsive values for font sizes, paddings, margins and much more // -// See https://github.com/twbs/rfs +// Licensed under MIT (https://github.com/twbs/rfs/blob/master/LICENSE) // Configuration -// Base font size -$rfs-base-font-size: 1.25rem !default; -$rfs-font-size-unit: rem !default; +// Base value +$rfs-base-value: 1.25rem !default; +$rfs-unit: rem !default; -// Breakpoint at where font-size starts decreasing if screen width is smaller +@if $rfs-unit != rem and $rfs-unit != px { + @error "`#{$rfs-unit}` is not a valid unit for $rfs-unit. Use `px` or `rem`."; +} + +// Breakpoint at where values start decreasing if screen width is smaller $rfs-breakpoint: 1200px !default; $rfs-breakpoint-unit: px !default; -// Resize font-size based on screen height and width +@if $rfs-breakpoint-unit != px and $rfs-breakpoint-unit != em and $rfs-breakpoint-unit != rem { + @error "`#{$rfs-breakpoint-unit}` is not a valid unit for $rfs-breakpoint-unit. Use `px`, `em` or `rem`."; +} + +// Resize values 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 $rfs-factor <= 1 { +@if type-of($rfs-factor) != number or $rfs-factor <= 1 { @error "`#{$rfs-factor}` is not a valid $rfs-factor, it must be greater than 1."; } +// Mode. Possibilities: "min-media-query", "max-media-query" +$rfs-mode: min-media-query !default; + // Generate enable or disable classes. Possibilities: false, "enable" or "disable" $rfs-class: false !default; @@ -35,170 +46,267 @@ $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; +// Disable RFS by setting $enable-rfs to false +$enable-rfs: true !default; -// Cache $rfs-base-font-size unit -$rfs-base-font-size-unit: unit($rfs-base-font-size); +// Cache $rfs-base-value unit +$rfs-base-value-unit: unit($rfs-base-value); -// 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); +// Remove px-unit from $rfs-base-value for calculations +@if $rfs-base-value-unit == px { + $rfs-base-value: $rfs-base-value / ($rfs-base-value * 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); +@else if $rfs-base-value-unit == rem { + $rfs-base-value: $rfs-base-value / ($rfs-base-value * 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" { +@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" { +@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}#{$rfs-suffix}; +// Calculate the media query value +$rfs-mq-value: if($rfs-breakpoint-unit == px, #{$rfs-breakpoint}px, #{$rfs-breakpoint / $rfs-rem-value}#{$rfs-breakpoint-unit}); +$rfs-mq-property-width: if($rfs-mode == max-media-query, max-width, min-width); +$rfs-mq-property-height: if($rfs-mode == max-media-query, max-height, min-height); + +// Internal mixin used to determine which media query needs to be used +@mixin _rfs-media-query { + @if $rfs-two-dimensional { + @if $rfs-mode == max-media-query { + @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}), (#{$rfs-mq-property-height}: #{$rfs-mq-value}) { + @content; + } + } + @else { + @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) and (#{$rfs-mq-property-height}: #{$rfs-mq-value}) { + @content; + } + } } @else { - // Variables for storing static and fluid rescaling - $rfs-static: null; - $rfs-fluid: null; + @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) { + @content; + } + } +} - // Remove px-unit from $fs for calculations - @if $fs-unit == "px" { - $fs: $fs / ($fs * 0 + 1); +// Internal mixin that adds disable classes to the selector if needed. +@mixin _rfs-rule { + @if $rfs-class == disable and $rfs-mode == max-media-query { + // Adding an extra class increases specificity, which prevents the media query to override the property + &, + .disable-rfs &, + &.disable-rfs { + @content; + } + } + @else if $rfs-class == enable and $rfs-mode == min-media-query { + .enable-rfs &, + &.enable-rfs { + @content; } - @else if $fs-unit == "rem" { - $fs: $fs / ($fs * 0 + 1 / $rfs-rem-value); + } + @else { + @content; + } +} + +// Internal mixin that adds enable classes to the selector if needed. +@mixin _rfs-media-query-rule { + + @if $rfs-class == enable { + @if $rfs-mode == min-media-query { + @content; } - // Set default font-size - @if $rfs-font-size-unit == rem { - $rfs-static: #{$fs / $rfs-rem-value}rem#{$rfs-suffix}; + @include _rfs-media-query { + .enable-rfs &, + &.enable-rfs { + @content; + } } - @else if $rfs-font-size-unit == px { - $rfs-static: #{$fs}px#{$rfs-suffix}; + } + @else { + @if $rfs-class == disable and $rfs-mode == min-media-query { + .disable-rfs &, + &.disable-rfs { + @content; + } } - @else { - @error "`#{$rfs-font-size-unit}` is not a valid unit for $rfs-font-size-unit. Use `px` or `rem`."; + @include _rfs-media-query { + @content; } + } +} - // 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; - $variable-unit: null; +// Helper function to get the formatted non-responsive value +@function rfs-value($values) { + // Convert to list + $values: if(type-of($values) != list, ($values,), $values); - // Calculate minimum font-size for given font-size - $fs-min: $rfs-base-font-size + ($fs - $rfs-base-font-size) / $rfs-factor; + $val: ''; - // Calculate difference between given font-size and minimum font-size for given font-size - $fs-diff: $fs - $fs-min; + // Loop over each value and calculate value + @each $value in $values { + @if $value == 0 { + $val: $val + ' 0'; + } + @else { + // Cache $value unit + $unit: if(type-of($value) == "number", unit($value), false); - // 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 $unit == px { + // Convert to rem if needed + $val: $val + ' ' + if($rfs-unit == rem, #{$value / ($value * 0 + $rfs-rem-value)}rem, $value); + } + @else if $unit == rem { + // Convert to px if needed + $val: $val + ' ' + if($rfs-unit == px, #{$value / ($value * 0 + 1) * $rfs-rem-value}px, $value); + } + @else { + // If $value isn't a number (like inherit) or $value has a unit (not px or rem, like 1.5em) or $ is 0, just print the value + $val: $val + ' ' + $value; + } + } + } - // If two-dimensional, use smallest of screen width and height - $variable-unit: if($rfs-two-dimensional, vmin, vw); + // Remove first space + @return unquote(str-slice($val, 2)); +} - // Calculate the variable width between 0 and $rfs-breakpoint - $variable-width: #{$fs-diff * 100 / $rfs-breakpoint}#{$variable-unit}; +// Helper function to get the responsive value calculated by RFS +@function rfs-fluid-value($values) { + // Convert to list + $values: if(type-of($values) != list, ($values,), $values); - // Set the calculated font-size. - $rfs-fluid: calc(#{$min-width} + #{$variable-width}) #{$rfs-suffix}; - } + $val: ''; - // Rendering - @if $rfs-fluid == null { - // Only render static font-size if no fluid font-size is available - font-size: $rfs-static; + // Loop over each value and calculate value + @each $value in $values { + @if $value == 0 { + $val: $val + ' 0'; } + @else { - $mq-value: null; + // Cache $value unit + $unit: if(type-of($value) == "number", unit($value), false); - // 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; + // If $value isn't a number (like inherit) or $value has a unit (not px or rem, like 1.5em) or $ is 0, just print the value + @if not $unit or $unit != px and $unit != rem { + $val: $val + ' ' + $value; } + @else { - @error "`#{$rfs-breakpoint-unit}` is not a valid unit for $rfs-breakpoint-unit. Use `px`, `em` or `rem`."; - } + // Remove unit from $value for calculations + $value: $value / ($value * 0 + if($unit == px, 1, 1 / $rfs-rem-value)); - @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: $rfs-static; + // Only add the media query if the value is greater than the minimum value + @if abs($value) <= $rfs-base-value or not $enable-rfs { + $val: $val + ' ' + if($rfs-unit == rem, #{$value / $rfs-rem-value}rem, #{$value}px); } - } - @else { - font-size: $rfs-static; - } + @else { + // Calculate the minimum value + $value-min: $rfs-base-value + (abs($value) - $rfs-base-value) / $rfs-factor; + + // Calculate difference between $value and the minimum value + $value-diff: abs($value) - $value-min; - @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; - } + // Base value formatting + $min-width: if($rfs-unit == rem, #{$value-min / $rfs-rem-value}rem, #{$value-min}px); + + // Use negative value if needed + $min-width: if($value < 0, -$min-width, $min-width); + + // Use `vmin` if two-dimensional is enabled + $variable-unit: if($rfs-two-dimensional, vmin, vw); + + // Calculate the variable width between 0 and $rfs-breakpoint + $variable-width: #{$value-diff * 100 / $rfs-breakpoint}#{$variable-unit}; + + // Return the calculated value + $val: $val + ' calc(' + $min-width + if($value < 0, ' - ', ' + ') + $variable-width + ')'; } } - @else { - @media (max-width: #{$mq-value}) { - @if $rfs-class == "enable" { - .enable-responsive-font-size &, - &.enable-responsive-font-size { - font-size: $rfs-fluid; - } - } - @else { - font-size: $rfs-fluid; - } - - @if $rfs-safari-iframe-resize-bug-fix { - // stylelint-disable-next-line length-zero-no-unit - min-width: 0vw; - } - } + } + } + + // Remove first space + @return unquote(str-slice($val, 2)); +} + +// RFS mixin +@mixin rfs($values, $property: font-size) { + @if $values != null { + $val: rfs-value($values); + $fluidVal: rfs-fluid-value($values); + + // Do not print the media query if responsive & non-responsive values are the same + @if $val == $fluidVal { + #{$property}: $val; + } + @else { + @include _rfs-rule { + #{$property}: if($rfs-mode == max-media-query, $val, $fluidVal); + + // Include safari iframe resize fix if needed + min-width: if($rfs-safari-iframe-resize-bug-fix, (0 * 1vw), null); + } + + @include _rfs-media-query-rule { + #{$property}: if($rfs-mode == max-media-query, $fluidVal, $val); } } } } -// The font-size & responsive-font-size mixin uses RFS to rescale font sizes -@mixin font-size($fs, $important: false) { - @include rfs($fs, $important); +// Shorthand helper mixins +@mixin font-size($value) { + @include rfs($value); +} + +@mixin padding($value) { + @include rfs($value, padding); +} + +@mixin padding-top($value) { + @include rfs($value, padding-top); +} + +@mixin padding-right($value) { + @include rfs($value, padding-right); +} + +@mixin padding-bottom($value) { + @include rfs($value, padding-bottom); +} + +@mixin padding-left($value) { + @include rfs($value, padding-left); +} + +@mixin margin($value) { + @include rfs($value, margin); +} + +@mixin margin-top($value) { + @include rfs($value, margin-top); +} + +@mixin margin-right($value) { + @include rfs($value, margin-right); +} + +@mixin margin-bottom($value) { + @include rfs($value, margin-bottom); } -@mixin responsive-font-size($fs, $important: false) { - @include rfs($fs, $important); +@mixin margin-left($value) { + @include rfs($value, margin-left); } |