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154 lines
3.7 KiB
154 lines
3.7 KiB
// #ifdef VUE3
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@use "sass:math";
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// #endif
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@function div($dividend, $divisor) {
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// #ifdef VUE3
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@return math.div($dividend, $divisor);
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// #endif
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// #ifndef VUE3
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@return $dividend / $divisor;
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// #endif
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}
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@function to-number($string) {
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$result: 0;
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$is-negative: str-slice($string, 1, 1) == '-';
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$length: str-length($string);
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@if $is-negative {
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$string: str-slice($string, 2);
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$length: $length - 1;
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}
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$decimal-index: str-index($string, '.');
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@if $decimal-index {
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$decimal-str: str-slice($string, $decimal-index + 1);
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$decimal-length: str-length($decimal-str);
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$length: $length - $decimal-length - 1;
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$string: str-slice($string, 1, $decimal-index - 1);
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$result: to-number($decimal-str) * pow(10, $decimal-length * -1);
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}
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$numbers:(
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'0': 0,
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'1': 1,
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'2': 2,
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'3': 3,
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'4': 4,
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'5': 5,
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'6': 6,
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'7': 7,
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'8': 8,
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'9': 9,
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);
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@for $i from 1 through $length {
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$key: str-slice($string, $i, $i);
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$number: map-get($numbers, $key);
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$digit: if($number == 0, 0, if($length - $i > 0, pow(10, $length - $i), 0));
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$result: $result + $digit * $number + if($length - $i == 0, $number, 0);
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}
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@return if($is-negative, $result * -1, $result) ;
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}
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// 由于vue2 h5和app不支持动态rpx 故转成px
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@function rpx-to-px($rpx-string) {
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@if type-of($rpx-string) == list {
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$new-list: ();
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@each $value in $rpx-string {
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$v: $value + '';
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$start: str-index($v, 'rpx');
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@if $start {
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$new-list: append($new-list, rpx-to-px($v));
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} @else {
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$new-list: append($new-list, $value);
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}
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}
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@return $new-list;
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}
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@if type-of($rpx-string) == number and comparable($rpx-string, 1rpx) {
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@return rpx-to-px($rpx-string + '');
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}
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@if type-of($rpx-string) != string {
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@return $rpx-string;
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}
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$start: str-index($rpx-string, 'rpx');
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$number-map: (
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'-': 1,
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'0': 1,
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'1': 1,
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'2': 1,
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'3': 1,
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'4': 1,
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'5': 1,
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'6': 1,
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'7': 1,
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'8': 1,
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'9': 1,
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);
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@if not $start {
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@return $rpx-string;
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}
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$result: '';
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@while $start {
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// 获取 'rpx' 前的数字
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$number-end: $start - 1;
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$number-start: $number-end;
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@while $number-start > 0 and map-get($number-map, str-slice($rpx-string, $number-start, $number-start)) ==1 {
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$number-start: $number-start - 1;
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}
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// 提取数字部分
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$number: to-number(str-slice($rpx-string, $number-start + 1, $number-end));
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// 转换 'rpx' 到 'px'
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// $px-value: ($number / 2) + 'px';
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$px-value: div($number, 2) + 'px';
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$result: $result + str-slice($rpx-string, 0, $number-start) + $px-value;
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// 更新字符串和起始位置
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$rpx-string: str-slice($rpx-string, $start + 3);
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$start: str-index($rpx-string, 'rpx');
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}
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@return $result + $rpx-string;
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}
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@function create-var($name, $values...) {
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// 将不定数量的参数转换为列表
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$value-list: $values;
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$css-value: null;
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@if length($value-list) == 0 {
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@warn "The list must have at least 1 values.";
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} @else {
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// 初始化CSS变量的值为列表中的第一个值
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/* #ifdef VUE2 */
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$css-value: rpx-to-px(nth($value-list, 1));
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/* #endif */
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/* #ifndef VUE2 */
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$css-value: nth($value-list, 1);
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/* #endif */
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}
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// 检查列表长度是否大于等于2
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@if length($value-list) >= 2 {
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// 使用@for循环遍历剩余的值，并构建CSS变量的完整值
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@for $i from 2 through length($value-list) {
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/* #ifdef VUE2 */
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$css-value: $css-value + ", " + rpx-to-px(nth($value-list, $i));
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/* #endif */
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/* #ifndef VUE2 */
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$css-value: $css-value + ", " + nth($value-list, $i);
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/* #endif */
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}
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}
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/* #ifndef APP-NVUE || APP-ANDROID || APP-IOS */
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@return var(--l-#{$name}, #{$css-value});
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/* #endif */
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/* #ifdef APP-NVUE || APP-ANDROID || APP-IOS */
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@return $css-value;
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/* #endif */
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}
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