// ==========================================================================
// Breakpoint Mixin
// See https://wpcalypso.wordpress.com/devdocs/docs/coding-guidelines/css.md#media-queries
// ==========================================================================
$breakpoints: 480px, 660px, 960px, 1040px; // Think very carefully before adding a new breakpoint
@mixin breakpoint( $size ){
@if type-of($size) == string {
$approved-value: 0;
@each $breakpoint in $breakpoints {
$and-larger: ">" + $breakpoint;
$and-smaller: "<" + $breakpoint;
@if $size == $and-smaller {
$approved-value: 1;
@media ( max-width: $breakpoint ) {
@content;
}
}
@else {
@if $size == $and-larger {
$approved-value: 2;
@media ( min-width: $breakpoint + 1 ) {
@content;
}
}
@else {
@each $breakpoint-end in $breakpoints {
$range: $breakpoint + "-" + $breakpoint-end;
@if $size == $range {
$approved-value: 3;
@media ( min-width: $breakpoint + 1 ) and ( max-width: $breakpoint-end ) {
@content;
}
}
}
}
}
}
@if $approved-value == 0 {
$sizes: "";
@each $breakpoint in $breakpoints {
$sizes: $sizes + " " + $breakpoint;
}
// TODO - change this to use @error, when it is supported by node-sass
@warn "ERROR in breakpoint( #{ $size } ): You can only use these sizes[ #{$sizes} ] using the following syntax [ <#{ nth( $breakpoints, 1 ) } >#{ nth( $breakpoints, 1 ) } #{ nth( $breakpoints, 1 ) }-#{ nth( $breakpoints, 2 ) } ]";
}
}
@else {
$sizes: "";
@each $breakpoint in $breakpoints {
$sizes: $sizes + " " + $breakpoint;
}
// TODO - change this to use @error, when it is supported by node-sass
@warn "ERROR in breakpoint( #{ $size } ): Please wrap the breakpoint $size in parenthesis. You can use these sizes[ #{$sizes} ] using the following syntax [ <#{ nth( $breakpoints, 1 ) } >#{ nth( $breakpoints, 1 ) } #{ nth( $breakpoints, 1 ) }-#{ nth( $breakpoints, 2 ) } ]";
}
}