META-INF.resources._unstyled.css.clay.mixins._rfs.scss Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of com.liferay.frontend.theme.unstyled
Show all versions of com.liferay.frontend.theme.unstyled
Liferay Frontend Theme Unstyled
The newest version!
// 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: clay-div(
$rfs-base-font-size,
($rfs-base-font-size * 0 + 1)
);
} @else if $rfs-base-font-size-unit == 'rem' {
$rfs-base-font-size: clay-div(
$rfs-base-font-size,
($rfs-base-font-size * 0 + clay-div(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' {
$rfs-breakpoint: clay-div($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 + clay-div(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' {
$fs: clay-div($fs, ($fs * 0 + 1));
} @else if $fs-unit == 'rem' {
$fs: clay-div($fs, ($fs * 0 + clay-div(1, $rfs-rem-value)));
}
// Set default font-size
@if $rfs-font-size-unit == rem {
$rfs-static: #{clay-div($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(
$rfs-font-size-unit == rem,
#{clay-div($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 $rfs-safari-iframe-resize-bug-fix {
min-width: 0vw;
}
}
} @else {
@media (max-width: #{$mq-value}) {
@if $rfs-class == 'enable' {
.enable-responsive-font-size &,
&.enable-responsive-font-size {
font-size: $rfs-fluid;
}
} @else {
font-size: $rfs-fluid;
}
@if $rfs-safari-iframe-resize-bug-fix {
min-width: 0vw;
}
}
}
}
}
}
@mixin font-size($fs, $important: false) {
@include rfs($fs, $important);
}
@mixin responsive-font-size($fs, $important: false) {
@include rfs($fs, $important);
}