bootstrap-less-port/less/mixins/_grid-framework.less

A Less port of Bootstrap v4

// 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) {
//  // Common properties for all breakpoints
//  %grid-column {
//    position: relative;
//    width: 100%;
//    padding-right: $gutter / 2;
//    padding-left: $gutter / 2;
//  }
//
//  @each $breakpoint in map-keys($breakpoints) {
//    $infix: breakpoint-infix($breakpoint, $breakpoints);
//
//    @if $columns > 0 {
//      // Allow columns to stretch full width below their breakpoints
//      @for $i from 1 through $columns {
//        .col#{$infix}-#{$i} {
//          @extend %grid-column;
//        }
//      }
//    }
//
//    .col#{$infix},
//    .col#{$infix}-auto {
//      @extend %grid-column;
//    }
//
//    @include media-breakpoint-up($breakpoint, $breakpoints) {
//      // Provide basic `.col-{bp}` classes for equal-width flexbox columns
//      .col#{$infix} {
//        flex-basis: 0;
//        flex-grow: 1;
//        min-width: 0; // See https://github.com/twbs/bootstrap/issues/25410
//        max-width: 100%;
//      }
//
//      @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, $columns);
//          }
//        }
//      }
//
//      .order#{$infix}-first { order: -1; }
//
//      .order#{$infix}-last { order: $columns + 1; }
//
//      @for $i from 0 through $columns {
//        .order#{$infix}-#{$i} { order: $i; }
//      }
//
//      @if $columns > 0 {
//        // `$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);
//            }
//          }
//        }
//      }
//    }
//  }
//}
#make-grid-columns(@columns: @grid-columns, @gutter: @grid-gutter-width, @breakpoints: @grid-breakpoints) {
	// Common properties for all breakpoints
	// LESS PORT: Unfortunately we have to use an actual selector here in order to be able to
	// `:extend()` it later. This means that the selector is output in the compiled CSS, creating a
	// small disparity between the Less and Sass versions.
	\%grid-column {
		position: relative;
		width: 100%;
		padding-right: (@gutter / 2);
		padding-left: (@gutter / 2);
	};

	each(map-keys(@breakpoints), #(@breakpoint) {
		@infix: breakpoint-infix(@breakpoint, @breakpoints);

		& when (@columns > 0) {
			// Allow columns to stretch full width below their breakpoints
			each(range(@columns), #(@i) {
				.col@{infix}-@{i} {
					&:extend(\%grid-column);
				}
			});
		}

		.col@{infix},
		.col@{infix}-auto {
			&:extend(\%grid-column);
		}

		#media-breakpoint-up(@breakpoint, {
			// Provide basic `.col-{bp}` classes for equal-width flexbox columns
			.col@{infix} {
				flex-basis: 0;
				flex-grow: 1;
				min-width: 0; // See https://github.com/twbs/bootstrap/issues/25410
				max-width: 100%;
			}

			& when (@grid-row-columns > 0) {
				each(range(@grid-row-columns), #(@i) {
					.row-cols@{infix}-@{i} {
						#row-cols(@i);
					}
				});
			}

			.col@{infix}-auto {
				#make-col-auto();
			}

			& when (@columns > 0) {
				each(range(@columns), #(@i) {
					.col@{infix}-@{i} {
						#make-col(@i, @columns);
					}
				});
			}

			.order@{infix}-first { order: -1; }

			.order@{infix}-last { order: (@columns + 1); }

			each(range(0, @columns), #(@i) {
				.order@{infix}-@{i} { order: @i; }
			});

			& when (@columns > 0) {
				// `@columns - 1` because offsetting by the width of an entire row isn't possible
				each(range(0, (@columns - 1)), #(@i) {
					& when not (@i = 0),
					(@i = 0) and not (@infix = ~"") {
						.offset@{infix}-@{i} {
							#make-col-offset(@i, @columns);
						}
					}
				});
			}
		});
	});
}