/instantMessage/node_modules/bootstrap/scss/_functions.scss |
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// Bootstrap functions |
// |
// Utility mixins and functions for evaluating source code across our variables, maps, and mixins. |
|
// Ascending |
// Used to evaluate Sass maps like our grid breakpoints. |
@mixin _assert-ascending($map, $map-name) { |
$prev-key: null; |
$prev-num: null; |
@each $key, $num in $map { |
@if $prev-num == null { |
// Do nothing |
} @else if not comparable($prev-num, $num) { |
@warn "Potentially invalid value for #{$map-name}: This map must be in ascending order, but key '#{$key}' has value #{$num} whose unit makes it incomparable to #{$prev-num}, the value of the previous key '#{$prev-key}' !"; |
} @else if $prev-num >= $num { |
@warn "Invalid value for #{$map-name}: This map must be in ascending order, but key '#{$key}' has value #{$num} which isn't greater than #{$prev-num}, the value of the previous key '#{$prev-key}' !"; |
} |
$prev-key: $key; |
$prev-num: $num; |
} |
} |
|
// Starts at zero |
// Another grid mixin that ensures the min-width of the lowest breakpoint starts at 0. |
@mixin _assert-starts-at-zero($map) { |
$values: map-values($map); |
$first-value: nth($values, 1); |
@if $first-value != 0 { |
@warn "First breakpoint in `$grid-breakpoints` must start at 0, but starts at #{$first-value}."; |
} |
} |
|
// Replace `$search` with `$replace` in `$string` |
// Used on our SVG icon backgrounds for custom forms. |
// |
// @author Hugo Giraudel |
// @param {String} $string - Initial string |
// @param {String} $search - Substring to replace |
// @param {String} $replace ('') - New value |
// @return {String} - Updated string |
@function str-replace($string, $search, $replace: "") { |
$index: str-index($string, $search); |
|
@if $index { |
@return str-slice($string, 1, $index - 1) + $replace + str-replace(str-slice($string, $index + str-length($search)), $search, $replace); |
} |
|
@return $string; |
} |
|
// Color contrast |
@function color-yiq($color) { |
$r: red($color); |
$g: green($color); |
$b: blue($color); |
|
$yiq: (($r * 299) + ($g * 587) + ($b * 114)) / 1000; |
|
@if ($yiq >= $yiq-contrasted-threshold) { |
@return $yiq-text-dark; |
} @else { |
@return $yiq-text-light; |
} |
} |
|
// Retrieve color Sass maps |
@function color($key: "blue") { |
@return map-get($colors, $key); |
} |
|
@function theme-color($key: "primary") { |
@return map-get($theme-colors, $key); |
} |
|
@function gray($key: "100") { |
@return map-get($grays, $key); |
} |
|
// Request a theme color level |
@function theme-color-level($color-name: "primary", $level: 0) { |
$color: theme-color($color-name); |
$color-base: if($level > 0, $black, $white); |
$level: abs($level); |
|
@return mix($color-base, $color, $level * $theme-color-interval); |
} |