diff options
Diffstat (limited to 'scss/_functions.scss')
| -rw-r--r-- | scss/_functions.scss | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/scss/_functions.scss b/scss/_functions.scss index f92355f422..2d3478bfad 100644 --- a/scss/_functions.scss +++ b/scss/_functions.scss @@ -95,7 +95,7 @@ // Color contrast // See https://github.com/twbs/bootstrap/pull/30168 -// A list of pre-calculated numbers of pow(($value / 255 + .055) / 1.055, 2.4). (from 0 to 255) +// A list of pre-calculated numbers of pow(divide((divide($value, 255) + .055), 1.055), 2.4). (from 0 to 255) // stylelint-disable-next-line scss/dollar-variable-default, scss/dollar-variable-pattern $_luminance-list: .0008 .001 .0011 .0013 .0015 .0017 .002 .0022 .0025 .0027 .003 .0033 .0037 .004 .0044 .0048 .0052 .0056 .006 .0065 .007 .0075 .008 .0086 .0091 .0097 .0103 .011 .0116 .0123 .013 .0137 .0144 .0152 .016 .0168 .0176 .0185 .0194 .0203 .0212 .0222 .0232 .0242 .0252 .0262 .0273 .0284 .0296 .0307 .0319 .0331 .0343 .0356 .0369 .0382 .0395 .0409 .0423 .0437 .0452 .0467 .0482 .0497 .0513 .0529 .0545 .0561 .0578 .0595 .0612 .063 .0648 .0666 .0685 .0704 .0723 .0742 .0762 .0782 .0802 .0823 .0844 .0865 .0887 .0908 .0931 .0953 .0976 .0999 .1022 .1046 .107 .1095 .1119 .1144 .117 .1195 .1221 .1248 .1274 .1301 .1329 .1356 .1384 .1413 .1441 .147 .15 .1529 .1559 .159 .162 .1651 .1683 .1714 .1746 .1779 .1812 .1845 .1878 .1912 .1946 .1981 .2016 .2051 .2086 .2122 .2159 .2195 .2232 .227 .2307 .2346 .2384 .2423 .2462 .2502 .2542 .2582 .2623 .2664 .2705 .2747 .2789 .2831 .2874 .2918 .2961 .3005 .305 .3095 .314 .3185 .3231 .3278 .3325 .3372 .3419 .3467 .3515 .3564 .3613 .3663 .3712 .3763 .3813 .3864 .3916 .3968 .402 .4072 .4125 .4179 .4233 .4287 .4342 .4397 .4452 .4508 .4564 .4621 .4678 .4735 .4793 .4851 .491 .4969 .5029 .5089 .5149 .521 .5271 .5333 .5395 .5457 .552 .5583 .5647 .5711 .5776 .5841 .5906 .5972 .6038 .6105 .6172 .624 .6308 .6376 .6445 .6514 .6584 .6654 .6724 .6795 .6867 .6939 .7011 .7084 .7157 .7231 .7305 .7379 .7454 .7529 .7605 .7682 .7758 .7835 .7913 .7991 .807 .8148 .8228 .8308 .8388 .8469 .855 .8632 .8714 .8796 .8879 .8963 .9047 .9131 .9216 .9301 .9387 .9473 .956 .9647 .9734 .9823 .9911 1; @@ -123,7 +123,7 @@ $_luminance-list: .0008 .001 .0011 .0013 .0015 .0017 .002 .0022 .0025 .0027 .003 $l1: luminance($background); $l2: luminance(opaque($background, $foreground)); - @return if($l1 > $l2, ($l1 + .05) / ($l2 + .05), ($l2 + .05) / ($l1 + .05)); + @return if($l1 > $l2, divide($l1 + .05, $l2 + .05), divide($l2 + .05, $l1 + .05)); } // Return WCAG2.0 relative luminance @@ -137,7 +137,7 @@ $_luminance-list: .0008 .001 .0011 .0013 .0015 .0017 .002 .0022 .0025 .0027 .003 ); @each $name, $value in $rgb { - $value: if($value / 255 < .03928, $value / 255 / 12.92, nth($_luminance-list, $value + 1)); + $value: if(divide($value, 255) < .03928, divide(divide($value, 255), 12.92), nth($_luminance-list, $value + 1)); $rgb: map-merge($rgb, ($name: $value)); } @@ -219,3 +219,28 @@ $_luminance-list: .0008 .001 .0011 .0013 .0015 .0017 .002 .0022 .0025 .0027 .003 @return if($return-calc == true, calc(#{$value1} - #{$value2}), $value1 + unquote(" - ") + $value2); } + +@function divide($dividend, $divisor, $precision: 10) { + $sign: if($dividend > 0 and $divisor > 0, 1, -1); + $dividend: abs($dividend); + $divisor: abs($divisor); + $quotient: 0; + $remainder: $dividend; + @if $dividend == 0 { + @return 0; + } + @if $divisor == 0 { + @error "Cannot divide by 0"; + } + @if $divisor == 1 { + @return $dividend; + } + @while $remainder >= $divisor { + $quotient: $quotient + 1; + $remainder: $remainder - $divisor; + } + @if $remainder > 0 and $precision > 0 { + $remainder: divide($remainder * 10, $divisor, $precision - 1) * .1; + } + @return ($quotient + $remainder) * $sign; +} |