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// Grid system
//
// Generate semantic grid columns with these mixins.
@mixin make-row($gutter: $grid-gutter-width) { --#{$prefix}gutter-x: #{$gutter}; --#{$prefix}gutter-y: 0; display: flex; flex-wrap: wrap; // TODO: Revisit calc order after https://github.com/react-bootstrap/react-bootstrap/issues/6039 is fixed
margin-top: calc(-1 * var(--#{$prefix}gutter-y)); // stylelint-disable-line function-disallowed-list
margin-right: calc(-.5 * var(--#{$prefix}gutter-x)); // stylelint-disable-line function-disallowed-list
margin-left: calc(-.5 * var(--#{$prefix}gutter-x)); // stylelint-disable-line function-disallowed-list
}
@mixin make-col-ready() { // Add box sizing if only the grid is loaded
box-sizing: if(variable-exists(include-column-box-sizing) and $include-column-box-sizing, border-box, null); // Prevent columns from becoming too narrow when at smaller grid tiers by
// always setting `width: 100%;`. This works because we set the width
// later on to override this initial width.
flex-shrink: 0; width: 100%; max-width: 100%; // Prevent `.col-auto`, `.col` (& responsive variants) from breaking out the grid
padding-right: calc(var(--#{$prefix}gutter-x) * .5); // stylelint-disable-line function-disallowed-list
padding-left: calc(var(--#{$prefix}gutter-x) * .5); // stylelint-disable-line function-disallowed-list
margin-top: var(--#{$prefix}gutter-y); }
@mixin make-col($size: false, $columns: $grid-columns) { @if $size { flex: 0 0 auto; width: percentage(divide($size, $columns));
} @else { flex: 1 1 0; max-width: 100%; } }
@mixin make-col-auto() { flex: 0 0 auto; width: auto; }
@mixin make-col-offset($size, $columns: $grid-columns) { $num: divide($size, $columns); margin-left: if($num == 0, 0, percentage($num)); }
// Row columns
//
// Specify on a parent element(e.g., .row) to force immediate children into NN
// number of columns. Supports wrapping to new lines, but does not do a Masonry
// style grid.
@mixin row-cols($count) { > * { flex: 0 0 auto; width: percentage(divide(1, $count)); } }
// Framework grid generation
//
// Used only by Bootstrap to generate the correct number of grid classes given
// any value of `$grid-columns`.
@mixin make-grid-columns($columns: $grid-columns, $gutter: $grid-gutter-width, $breakpoints: $grid-breakpoints) { @each $breakpoint in map-keys($breakpoints) { $infix: breakpoint-infix($breakpoint, $breakpoints);
@include media-breakpoint-up($breakpoint, $breakpoints) { // Provide basic `.col-{bp}` classes for equal-width flexbox columns
.col#{$infix} { flex: 1 0 0%; // Flexbugs #4: https://github.com/philipwalton/flexbugs#flexbug-4
}
.row-cols#{$infix}-auto > * { @include make-col-auto(); }
@if $grid-row-columns > 0 { @for $i from 1 through $grid-row-columns { .row-cols#{$infix}-#{$i} { @include row-cols($i); } } }
.col#{$infix}-auto { @include make-col-auto(); }
@if $columns > 0 { @for $i from 1 through $columns { .col#{$infix}-#{$i} { @include make-col($i, $columns); } }
// `$columns - 1` because offsetting by the width of an entire row isn't possible
@for $i from 0 through ($columns - 1) { @if not ($infix == "" and $i == 0) { // Avoid emitting useless .offset-0
.offset#{$infix}-#{$i} { @include make-col-offset($i, $columns); } } } }
// Gutters
//
// Make use of `.g-*`, `.gx-*` or `.gy-*` utilities to change spacing between the columns.
@each $key, $value in $gutters { .g#{$infix}-#{$key}, .gx#{$infix}-#{$key} { --#{$prefix}gutter-x: #{$value}; }
.g#{$infix}-#{$key}, .gy#{$infix}-#{$key} { --#{$prefix}gutter-y: #{$value}; } } } } }
@mixin make-cssgrid($columns: $grid-columns, $breakpoints: $grid-breakpoints) { @each $breakpoint in map-keys($breakpoints) { $infix: breakpoint-infix($breakpoint, $breakpoints);
@include media-breakpoint-up($breakpoint, $breakpoints) { @if $columns > 0 { @for $i from 1 through $columns { .g-col#{$infix}-#{$i} { grid-column: auto / span $i; } }
// Start with `1` because `0` is an invalid value.
// Ends with `$columns - 1` because offsetting by the width of an entire row isn't possible.
@for $i from 1 through ($columns - 1) { .g-start#{$infix}-#{$i} { grid-column-start: $i; } } } } } }
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