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7 | @mixin _assert-ascending($map, $map-name) {
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8 | $prev-key: null;
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9 | $prev-num: null;
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10 | @each $key, $num in $map {
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11 | @if $prev-num == null or unit($num) == "%" or unit($prev-num) == "%" {
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12 |
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13 | } @else if not comparable($prev-num, $num) {
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14 | @warn "Potentially invalid value for #{$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}' !";
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15 | } @else if $prev-num >= $num {
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16 | @warn "Invalid value for #{$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}' !";
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17 | }
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18 | $prev-key: $key;
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19 | $prev-num: $num;
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20 | }
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21 | }
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22 |
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23 |
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24 |
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25 | @mixin _assert-starts-at-zero($map, $map-name: "$grid-breakpoints") {
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26 | @if length($map) > 0 {
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27 | $values: map-values($map);
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28 | $first-value: nth($values, 1);
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29 | @if $first-value != 0 {
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30 | @warn "First breakpoint in #{$map-name} must start at 0, but starts at #{$first-value}.";
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31 | }
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32 | }
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33 | }
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34 |
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35 |
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36 |
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37 |
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38 |
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39 |
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40 |
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41 |
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42 |
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43 | @function str-replace($string, $search, $replace: "") {
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44 | $index: str-index($string, $search);
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45 |
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46 | @if $index {
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47 | @return str-slice($string, 1, $index - 1) + $replace + str-replace(str-slice($string, $index + str-length($search)), $search, $replace);
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48 | }
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49 |
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50 | @return $string;
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51 | }
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52 |
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53 |
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54 | @function escape-svg($string) {
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55 | @if str-index($string, "data:image/svg+xml") {
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56 | @each $char, $encoded in $escaped-characters {
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57 |
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58 | @if str-index($string, "url(") == 1 {
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59 | $string: url("#{str-replace(str-slice($string, 6, -3), $char, $encoded)}");
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60 | } @else {
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61 | $string: str-replace($string, $char, $encoded);
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62 | }
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63 | }
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64 | }
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65 |
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66 | @return $string;
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67 | }
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68 |
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69 |
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70 | @function color-yiq($color, $dark: $yiq-text-dark, $light: $yiq-text-light) {
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71 | $r: red($color);
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72 | $g: green($color);
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73 | $b: blue($color);
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74 |
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75 | $yiq: (($r * 299) + ($g * 587) + ($b * 114)) / 1000;
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76 |
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77 | @if ($yiq >= $yiq-contrasted-threshold) {
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78 | @return $dark;
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79 | } @else {
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80 | @return $light;
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81 | }
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82 | }
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83 |
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84 |
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85 | @function color($key: "blue") {
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86 | @return map-get($colors, $key);
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87 | }
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88 |
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89 | @function theme-color($key: "primary") {
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90 | @return map-get($theme-colors, $key);
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91 | }
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92 |
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93 | @function gray($key: "100") {
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94 | @return map-get($grays, $key);
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95 | }
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96 |
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97 |
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98 | @function theme-color-level($color-name: "primary", $level: 0) {
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99 | $color: theme-color($color-name);
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100 | $color-base: if($level > 0, $black, $white);
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101 | $level: abs($level);
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102 |
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103 | @return mix($color-base, $color, $level * $theme-color-interval);
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104 | }
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105 |
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106 |
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107 | @function add($value1, $value2, $return-calc: true) {
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108 | @if $value1 == null {
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109 | @return $value2;
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110 | }
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111 |
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112 | @if $value2 == null {
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113 | @return $value1;
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114 | }
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115 |
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116 | @if type-of($value1) == number and type-of($value2) == number and comparable($value1, $value2) {
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117 | @return $value1 + $value2;
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118 | }
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119 |
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120 | @return if($return-calc == true, calc(#{$value1} + #{$value2}), $value1 + unquote(" + ") + $value2);
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121 | }
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122 |
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123 | @function subtract($value1, $value2, $return-calc: true) {
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124 | @if $value1 == null and $value2 == null {
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125 | @return null;
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126 | }
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127 |
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128 | @if $value1 == null {
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129 | @return -$value2;
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130 | }
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131 |
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132 | @if $value2 == null {
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133 | @return $value1;
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134 | }
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135 |
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136 | @if type-of($value1) == number and type-of($value2) == number and comparable($value1, $value2) {
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137 | @return $value1 - $value2;
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138 | }
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139 |
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140 | @return if($return-calc == true, calc(#{$value1} - #{$value2}), $value1 + unquote(" - ") + $value2);
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141 | }
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