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/// Makes an element's :before pseudoelement a FontAwesome icon.
/// @param {string} $content Optional content value to use.
/// @param {string} $where Optional pseudoelement to target (before or after).
@mixin icon($content: false, $where: before) {
text-decoration: none;
&:#{$where} {
@if $content {
content: $content;
}
-moz-osx-font-smoothing: grayscale;
-webkit-font-smoothing: antialiased;
font-family: FontAwesome;
font-style: normal;
font-weight: normal;
text-transform: none !important;
}
}
/// Applies padding to an element, taking the current element-margin value into account.
/// @param {mixed} $tb Top/bottom padding.
/// @param {mixed} $lr Left/right padding.
/// @param {list} $pad Optional extra padding (in the following order top, right, bottom, left)
/// @param {bool} $important If true, adds !important.
@mixin padding($tb, $lr, $pad: (0,0,0,0), $important: null) {
@if $important {
$important: '!important';
}
$x: 0.1em;
@if unit(_size(element-margin)) == 'rem' {
$x: 0.1rem;
}
padding: ($tb + nth($pad,1)) ($lr + nth($pad,2)) max($x, $tb - _size(element-margin) + nth($pad,3)) ($lr + nth($pad,4)) #{$important};
}
/// Encodes a SVG data URL so IE doesn't choke (via codepen.io/jakob-e/pen/YXXBrp).
/// @param {string} $svg SVG data URL.
/// @return {string} Encoded SVG data URL.
@function svg-url($svg) {
$svg: str-replace($svg, '"', '\'');
$svg: str-replace($svg, '%', '%25');
$svg: str-replace($svg, '<', '%3C');
$svg: str-replace($svg, '>', '%3E');
$svg: str-replace($svg, '&', '%26');
$svg: str-replace($svg, '#', '%23');
$svg: str-replace($svg, '{', '%7B');
$svg: str-replace($svg, '}', '%7D');
$svg: str-replace($svg, ';', '%3B');
@return url("data:image/svg+xml;charset=utf8,#{$svg}");
}
/// Initializes base flexgrid classes.
/// @param {string} $vertical-align Vertical alignment of cells.
/// @param {string} $horizontal-align Horizontal alignment of cells.
@mixin flexgrid-base($vertical-align: null, $horizontal-align: null) {
// Grid.
@include vendor('display', 'flex');
@include vendor('flex-wrap', 'wrap');
// Vertical alignment.
@if ($vertical-align == top) {
@include vendor('align-items', 'flex-start');
}
@else if ($vertical-align == bottom) {
@include vendor('align-items', 'flex-end');
}
@else if ($vertical-align == center) {
@include vendor('align-items', 'center');
}
@else {
@include vendor('align-items', 'stretch');
}
// Horizontal alignment.
@if ($horizontal-align != null) {
text-align: $horizontal-align;
}
// Cells.
> * {
@include vendor('flex-shrink', '1');
@include vendor('flex-grow', '0');
}
}
/// Sets up flexgrid columns.
/// @param {integer} $columns Columns.
@mixin flexgrid-columns($columns) {
> * {
$cell-width: 100% / $columns;
width: #{$cell-width};
}
}
/// Sets up flexgrid gutters.
/// @param {integer} $columns Columns.
/// @param {number} $gutters Gutters.
@mixin flexgrid-gutters($columns, $gutters) {
// Apply padding.
> * {
$cell-width: 100% / $columns;
padding: ($gutters * 0.5);
width: $cell-width;
}
}
/// Sets up flexgrid gutters (flush).
/// @param {integer} $columns Columns.
/// @param {number} $gutters Gutters.
@mixin flexgrid-gutters-flush($columns, $gutters) {
// Apply padding.
> * {
$cell-width: 100% / $columns;
$cell-width-pad: $gutters / $columns;
padding: ($gutters * 0.5);
width: calc(#{$cell-width} + #{$cell-width-pad});
}
// Clear top/bottom gutters.
> :nth-child(-n + #{$columns}) {
padding-top: 0;
}
> :nth-last-child(-n + #{$columns}) {
padding-bottom: 0;
}
// Clear left/right gutters.
> :nth-child(#{$columns}n + 1) {
padding-left: 0;
}
> :nth-child(#{$columns}n) {
padding-right: 0;
}
// Adjust widths of leftmost and rightmost cells.
> :nth-child(#{$columns}n + 1),
> :nth-child(#{$columns}n) {
$cell-width: 100% / $columns;
$cell-width-pad: ($gutters / $columns) - ($gutters / 2);
width: calc(#{$cell-width} + #{$cell-width-pad});
}
}
/// Reset flexgrid gutters (flush only).
/// Used to override a previous set of flexgrid gutter classes.
/// @param {integer} $columns Columns.
/// @param {number} $gutters Gutters.
/// @param {integer} $prev-columns Previous columns.
@mixin flexgrid-gutters-flush-reset($columns, $gutters, $prev-columns) {
// Apply padding.
> * {
$cell-width: 100% / $prev-columns;
$cell-width-pad: $gutters / $prev-columns;
padding: ($gutters * 0.5);
width: calc(#{$cell-width} + #{$cell-width-pad});
}
// Clear top/bottom gutters.
> :nth-child(-n + #{$prev-columns}) {
padding-top: ($gutters * 0.5);
}
> :nth-last-child(-n + #{$prev-columns}) {
padding-bottom: ($gutters * 0.5);
}
// Clear left/right gutters.
> :nth-child(#{$prev-columns}n + 1) {
padding-left: ($gutters * 0.5);
}
> :nth-child(#{$prev-columns}n) {
padding-right: ($gutters * 0.5);
}
// Adjust widths of leftmost and rightmost cells.
> :nth-child(#{$prev-columns}n + 1),
> :nth-child(#{$prev-columns}n) {
$cell-width: 100% / $columns;
$cell-width-pad: $gutters / $columns;
padding: ($gutters * 0.5);
width: calc(#{$cell-width} + #{$cell-width-pad});
}
}
/// Adds debug styles to current flexgrid element.
@mixin flexgrid-debug() {
box-shadow: 0 0 0 1px red;
> * {
box-shadow: inset 0 0 0 1px blue;
position: relative;
> * {
position: relative;
box-shadow: inset 0 0 0 1px green;
}
}
}
/// Initializes the current element as a flexgrid.
/// @param {integer} $columns Columns (optional).
/// @param {number} $gutters Gutters (optional).
/// @param {bool} $flush If true, clears padding around the very edge of the grid.
@mixin flexgrid($settings: ()) {
// Settings.
// Debug.
$debug: false;
@if (map-has-key($settings, 'debug')) {
$debug: map-get($settings, 'debug');
}
// Vertical align.
$vertical-align: null;
@if (map-has-key($settings, 'vertical-align')) {
$vertical-align: map-get($settings, 'vertical-align');
}
// Horizontal align.
$horizontal-align: null;
@if (map-has-key($settings, 'horizontal-align')) {
$horizontal-align: map-get($settings, 'horizontal-align');
}
// Columns.
$columns: null;
@if (map-has-key($settings, 'columns')) {
$columns: map-get($settings, 'columns');
}
// Gutters.
$gutters: 0;
@if (map-has-key($settings, 'gutters')) {
$gutters: map-get($settings, 'gutters');
}
// Flush.
$flush: true;
@if (map-has-key($settings, 'flush')) {
$flush: map-get($settings, 'flush');
}
// Initialize base grid.
@include flexgrid-base($vertical-align, $horizontal-align);
// Debug?
@if ($debug) {
@include flexgrid-debug;
}
// Columns specified?
@if ($columns != null) {
// Initialize columns.
@include flexgrid-columns($columns);
// Gutters specified?
@if ($gutters > 0) {
// Flush gutters?
@if ($flush) {
// Initialize gutters (flush).
@include flexgrid-gutters-flush($columns, $gutters);
}
// Otherwise ...
@else {
// Initialize gutters.
@include flexgrid-gutters($columns, $gutters);
}
}
}
}
/// Resizes a previously-initialized grid.
/// @param {integer} $columns Columns.
/// @param {number} $gutters Gutters (optional).
/// @param {list} $reset A list of previously-initialized grid columns (only if $flush is true).
/// @param {bool} $flush If true, clears padding around the very edge of the grid.
@mixin flexgrid-resize($settings: ()) {
// Settings.
// Columns.
$columns: 1;
@if (map-has-key($settings, 'columns')) {
$columns: map-get($settings, 'columns');
}
// Gutters.
$gutters: 0;
@if (map-has-key($settings, 'gutters')) {
$gutters: map-get($settings, 'gutters');
}
// Previous columns.
$prev-columns: false;
@if (map-has-key($settings, 'prev-columns')) {
$prev-columns: map-get($settings, 'prev-columns');
}
// Flush.
$flush: true;
@if (map-has-key($settings, 'flush')) {
$flush: map-get($settings, 'flush');
}
// Resize columns.
@include flexgrid-columns($columns);
// Gutters specified?
@if ($gutters > 0) {
// Flush gutters?
@if ($flush) {
// Previous columns specified?
@if ($prev-columns) {
// Convert to list if it isn't one already.
@if (type-of($prev-columns) != list) {
$prev-columns: ($prev-columns);
}
// Step through list of previous columns and reset them.
@each $x in $prev-columns {
@include flexgrid-gutters-flush-reset($columns, $gutters, $x);
}
}
// Resize gutters (flush).
@include flexgrid-gutters-flush($columns, $gutters);
}
// Otherwise ...
@else {
// Resize gutters.
@include flexgrid-gutters($columns, $gutters);
}
}
}