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Convert spinners to CSS variables (#35960)

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* Convert spinners to CSS variables

* bundlewatch
This commit is contained in:
Mark Otto 2022-03-17 13:49:57 -07:00 committed by GitHub
parent 8182fd9430
commit 71582eabff
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3 changed files with 58 additions and 24 deletions
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4
.bundlewatch.config.json
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@ -26,11 +26,11 @@
},
{
"path": "./dist/css/bootstrap.css",
"maxSize": "26.6 kB"
"maxSize": "26.65 kB"
},
{
"path": "./dist/css/bootstrap.min.css",
"maxSize": "24.65 kB"
"maxSize": "24.75 kB"
},
{
"path": "./dist/js/bootstrap.bundle.js",

58
scss/_spinners.scss
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@ -2,6 +2,17 @@
// Rotating border
//
.spinner-grow,
.spinner-border {
display: inline-block;
width: var(--#{$prefix}spinner-width);
height: var(--#{$prefix}spinner-height);
vertical-align: var(--#{$prefix}spinner-vertical-align);
// stylelint-disable-next-line property-disallowed-list
border-radius: 50%;
animation: var(--#{$prefix}spinner-animation-speed) linear infinite var(--#{$prefix}spinner-animation-name);
}
// scss-docs-start spinner-border-keyframes
@keyframes spinner-border {
to { transform: rotate(360deg) #{"/* rtl:ignore */"}; }
@ -9,21 +20,25 @@
// scss-docs-end spinner-border-keyframes
.spinner-border {
display: inline-block;
width: $spinner-width;
height: $spinner-height;
vertical-align: $spinner-vertical-align;
border: $spinner-border-width solid currentColor;
// scss-docs-start spinner-border-css-vars
--#{$prefix}spinner-width: #{$spinner-width};
--#{$prefix}spinner-height: #{$spinner-height};
--#{$prefix}spinner-vertical-align: #{$spinner-vertical-align};
--#{$prefix}spinner-border-width: #{$spinner-border-width};
--#{$prefix}spinner-animation-speed: #{$spinner-animation-speed};
--#{$prefix}spinner-animation-name: spinner-border;
// scss-docs-end spinner-border-css-vars
border: var(--#{$prefix}spinner-border-width) solid currentColor;
border-right-color: transparent;
// stylelint-disable-next-line property-disallowed-list
border-radius: 50%;
animation: $spinner-animation-speed linear infinite spinner-border;
}
.spinner-border-sm {
width: $spinner-width-sm;
height: $spinner-height-sm;
border-width: $spinner-border-width-sm;
// scss-docs-start spinner-border-sm-css-vars
--#{$prefix}spinner-width: #{$spinner-width-sm};
--#{$prefix}spinner-height: #{$spinner-height-sm};
--#{$prefix}spinner-border-width: #{$spinner-border-width-sm};
// scss-docs-end spinner-border-sm-css-vars
}
//
@ -43,27 +58,28 @@
// scss-docs-end spinner-grow-keyframes
.spinner-grow {
display: inline-block;
width: $spinner-width;
height: $spinner-height;
vertical-align: $spinner-vertical-align;
// scss-docs-start spinner-grow-css-vars
--#{$prefix}spinner-width: #{$spinner-width};
--#{$prefix}spinner-height: #{$spinner-height};
--#{$prefix}spinner-vertical-align: #{$spinner-vertical-align};
--#{$prefix}spinner-animation-speed: #{$spinner-animation-speed};
--#{$prefix}spinner-animation-name: spinner-grow;
// scss-docs-end spinner-grow-css-vars
background-color: currentColor;
// stylelint-disable-next-line property-disallowed-list
border-radius: 50%;
opacity: 0;
animation: $spinner-animation-speed linear infinite spinner-grow;
}
.spinner-grow-sm {
width: $spinner-width-sm;
height: $spinner-height-sm;
--#{$prefix}spinner-width: #{$spinner-width-sm};
--#{$prefix}spinner-height: #{$spinner-height-sm};
}
@if $enable-reduced-motion {
@media (prefers-reduced-motion: reduce) {
.spinner-border,
.spinner-grow {
animation-duration: $spinner-animation-speed * 2;
--#{$prefix}spinner-animation-speed: #{$spinner-animation-speed * 2};
}
}
}

20
site/content/docs/5.1/components/spinners.md
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@ -171,10 +171,28 @@ Use spinners within buttons to indicate an action is currently processing or tak
</button>
{{< /example >}}
## Sass
## CSS
### Variables
{{< added-in "5.2.0" >}}
As part of Bootstrap's evolving CSS variables approach, spinners now use local CSS variables on `.spinner-border` and `.spinner-grow` for enhanced real-time customization. Values for the CSS variables are set via Sass, so Sass customization is still supported, too.
Border spinner variables:
{{< scss-docs name="spinner-border-css-vars" file="scss/_spinners.scss" >}}
Growing spinner variables:
{{< scss-docs name="spinner-grow-css-vars" file="scss/_spinners.scss" >}}
For both spinners, small spinner modifier classes are used to update the values of these CSS variables as needed. For example, the `.spinner-border-sm` class does the following:
{{< scss-docs name="spinner-border-sm-css-vars" file="scss/_spinners.scss" >}}
### Sass variables
{{< scss-docs name="spinner-variables" file="scss/_variables.scss" >}}
### Keyframes