Updated Breakpoint Sass 1.3.0 => 2.0.6

This commit is contained in:
John O'Nolan 2013-10-27 16:25:26 +01:00
parent 589cfc98df
commit ca224ecda4
17 changed files with 913 additions and 496 deletions

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@ -1,6 +1,6 @@
/* /*
* Breakpoint Sass 1.3.0 * Breakpoint Sass 2.0.6
* Last updated: 2012-08-28 * Last updated: July 2013
* Copyright: Mason Wendell 2012 - MIT Licensed * Copyright: Mason Wendell 2012 - MIT Licensed
* Source: https://github.com/canarymason/breakpoint * Source: https://github.com/canarymason/breakpoint
*/ */
@ -8,302 +8,137 @@
////////////////////////////// //////////////////////////////
// Default Variables // Default Variables
////////////////////////////// //////////////////////////////
$breakpoint-default-feature: 'min-width' !default; // Default Features
$breakpoint-default-media: 'all' !default; $breakpoint-default-media: all !default;
$breakpoint-force-media-all: false !default; $breakpoint-default-feature: min-width !default;
$breakpoint-default-pair: 'width' !default; $breakpoint-default-pair: width !default;
$breakpoint-to-ems: false !default;
$breakpoint-prefixes: 'webkit' 'moz' !default;
$breakpoint-prefixed-queries: 'device-pixel-ratio' 'min-device-pixel-ratio' 'max-device-pixel-ratio' !default;
$breakpoint-no-queries: false !default; // Default Transforms
$breakpoint-no-query-wrappers: false !default; $breakpoint-force-media-all: false !default;
$breakpoint-to-ems: false !default;
$breakpoint-resolutions: true !default;
$breakpoint-base-font-size: false; // Default No Query Options
$breakpoint-no-queries: false !default;
$breakpoint-no-query-fallbacks: false !default;
// Deftault Base Font Size
$breakpoint-base-font-size: 16px !default;
// Legacy Syntax Support
$breakpoint-legacy-syntax: false !default;
////////////////////////////// //////////////////////////////
// Converts the input value to Base EMs // Imports
////////////////////////////// //////////////////////////////
@function breakpoint-to-base-em($value, $base-font-size: false) { @import 'breakpoint/context';
$value-unit: unit($value); @import 'breakpoint/helpers';
@import 'breakpoint/parsers';
@import 'breakpoint/no-query';
// Will convert relative EMs into root EMs. @import 'breakpoint/respond-to';
@if $base-font-size and type-of($base-font-size) == 'number' and $value-unit == 'em' {
$base-unit: unit($base-font-size);
@if $base-unit == 'px' or $base-unit == '%' or $base-unit == 'em' or $base-unit == 'pt' {
@return base-conversion($value) / base-conversion($base-font-size) * 1em;
}
@else {
@warn '#{$base-font-size} is not set in valid units for font size!';
@return false;
}
}
@else {
@return base-conversion($value);
}
}
@function base-conversion($value) {
$unit: unit($value);
@if $unit == 'px' {
@return $value / 16px * 1em;
}
@else if $unit == '%' {
@return $value / 100% * 1em;
}
@else if $unit == 'em' {
@return $value;
}
@else if $unit == 'pt' {
@return $value / 12pt * 1em;
}
@else {
@return $value;
// @warn 'Everything is terrible! What have you done?!';
}
}
//////////////////////////////
// Returns whether the feature can have a min/max pair
//////////////////////////////
@function breakpoint-min-max($feature) {
@if $feature == 'color' or $feature == 'color-index' or $feature == 'aspect-ratio' or $feature == 'device-height' or $feature == 'device-width' or $feature == 'height' or $feature == 'monochrome' or $feature == 'resolution' or $feature == 'width' or $feature == 'device-pixel-ratio' {
@return true;
}
@else {
@return false;
}
}
//////////////////////////////
// Returns whether the feature can have a string value
//////////////////////////////
@function breakpoint-string-value($feature) {
@if $feature == 'orientation' or $feature == 'scan' or $feature == 'color' or $feature == 'resolution' or $feature == 'min-resolution' or $feature == 'max-resolution' {
@return true;
}
@else {
@return false;
}
}
//////////////////////////////
// Experimental Media Queries
//////////////////////////////
@function breakpoint-experimental($property, $prefix) {
@if $property == 'min-device-pixel-ratio' {
@if $prefix == 'webkit' {
@return '-#{$prefix}-#{$property}';
}
@else if $prefix == 'moz' {
@return 'min--#{$prefix}-device-pixel-ratio';
}
@else {
@warn '#{$property} is not fully supported in -#{prefix}';
@return 'ERROR';
}
}
@else if $property == 'max-device-pixel-ratio' {
@if $prefix == 'webkit' {
@return '-#{$prefix}-#{$property}';
}
@else if $prefix == 'moz' {
@return 'max--#{$prefix}-device-pixel-ratio';
}
@else {
@warn '#{$property} is not fully supported in -#{prefix}';
@return 'ERROR';
}
}
@else {
@return '-#{$prefix}-#{$property}';
}
}
//////////////////////////////
// Private Breakpoint Variables
//////////////////////////////
$TXkgdmFyaWFibGUhIEdvIGF3YXkh: () !default;
//////////////////////////////
// Breakpoint Get Context
// $feature: Input feature to get it's current MQ context. Returns false if no context
//////////////////////////////
@function breakpoint-get-context($feature) {
@each $context in $TXkgdmFyaWFibGUhIEdvIGF3YXkh {
@if $feature == nth($context, 1) {
@return nth($context, 2);
}
}
@return false;
}
//////////////////////////////
// Private function to set context
//////////////////////////////
@function U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh($feature, $value) {
@if $value == 'monochrome' {
$feature: 'monochrome';
}
$append: $feature;
$append: join($append, $value, space);
$TXkgdmFyaWFibGUhIEdvIGF3YXkh: append($TXkgdmFyaWFibGUhIEdvIGF3YXkh, $append, comma);
@return true;
}
//////////////////////////////
// Private function to reset context
//////////////////////////////
@mixin TXkgcmVzZXQhIEdvIGF3YXkh {
$TXkgdmFyaWFibGUhIEdvIGF3YXkh: ();
}
////////////////////////////// //////////////////////////////
// Breakpoint Mixin // Breakpoint Mixin
////////////////////////////// //////////////////////////////
@mixin breakpoint($breakpoint, $media: $breakpoint-default-media, $no-query: false, $base-font-size: $breakpoint-base-font-size) {
// Query and Media String Defaults
$query: false !default;
$query-holder: false !default;
$media-string: false !default;
$do-prefix: false !default;
$webkit: false !default; @mixin breakpoint($query, $no-query: false) {
$webkit-first: true !default; // Internal Variables
$moz: false !default; $query-string: '';
$moz-first: true !default;
$o: false !default;
$o-first: true !default;
$ms: false !default;
$ms-first: true !default;
// Holder for Count // Reset contexts
$first: true !default; @include private-breakpoint-reset-contexts();
// Reset Context // Test to see if it's a comma-separated list
@include TXkgcmVzZXQhIEdvIGF3YXkh; $or-list: is-breakpoint-list($query);
$query-fallback: false;
// Set Media Context
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh('media', $media);
// Initialize Query String @if ($or-list != false and $breakpoint-legacy-syntax == false) {
@if $media != 'all' or $breakpoint-force-media-all { $length: length($query);
$media-string: "#{$media} ";
}
@else {
$media-string: "";
}
// If we have a single query, let's just work with that. $last: nth($query, $length);
@if is_breakpoint_list($breakpoint) == false { $query-fallback: breakpoint-no-query($last);
@each $prefix-query in $breakpoint-prefixed-queries {
@if $do-prefix == false { @if ($query-fallback != false) {
$do-prefix: featureExists($prefix-query, $breakpoint); $length: $length - 1;
}
} }
@if $do-prefix {
@each $prfx in $breakpoint-prefixes {
@if $prfx == 'webkit' {
$webkit: breakpoint-switch($breakpoint, $media-string, true, $prfx, $base-font-size: $base-font-size);
}
@if $prfx == 'moz' {
$moz: breakpoint-switch($breakpoint, $media-string, true, $prfx, $base-font-size: $base-font-size);
}
@if $prfx == 'o' { @for $i from 1 through $length {
$o: breakpoint-switch($breakpoint, $media-string, true, $prfx, $base-font-size: $base-font-size); @if $i == 1 {
} $query-string: breakpoint-parse(nth($query, $i));
}
@if $prfx == 'ms' { @else {
$ms: breakpoint-switch($breakpoint, $media-string, true, $prfx, $base-font-size: $base-font-size); $query-string: $query-string + ', ' + breakpoint-parse(nth($query, $i));
}
} }
}
@else {
$query: breakpoint-switch($breakpoint, $media-string, true, $base-font-size: $base-font-size);
} }
} }
@else { @else {
// See if Prefix Query exists @if ($breakpoint-legacy-syntax == true) {
@each $prefix-query in $breakpoint-prefixed-queries { $length: length($query);
@if $do-prefix == false {
$do-prefix: featureExists($prefix-query, $breakpoint); $last: nth($query, $length);
$query-fallback: breakpoint-no-query($last);
@if ($query-fallback != false) {
$length: $length - 1;
} }
}
@if $do-prefix { $mq: ();
@each $prfx in $breakpoint-prefixes {
@each $bkpt in $breakpoint {
@if $prfx == 'webkit' {
@if $webkit-first {
$webkit: breakpoint-switch($bkpt, $media-string, true, $prfx, $base-font-size: $base-font-size);
$webkit-first: false;
}
@else {
$webkit: join($webkit, breakpoint-switch($bkpt, $media-string, $prefix: $prfx, $base-font-size: $base-font-size));
}
}
@if $prfx == 'moz' { @for $i from 1 through $length {
@if $moz-first { $mq: append($mq, nth($query, $i), comma);
$moz: breakpoint-switch($bkpt, $media-string, true, $prfx, $base-font-size: $base-font-size);
$moz-first: false;
}
@else {
$moz: join($moz, breakpoint-switch($bkpt, $media-string, $prefix: $prfx, $base-font-size: $base-font-size));
}
}
@if $prfx == 'o' {
@if $o-first {
$o: breakpoint-switch($bkpt, $media-string, true, $prfx, $base-font-size: $base-font-size);
$o-first: false;
}
@else {
$o: join($o, breakpoint-switch($bkpt, $media-string, $prefix: $prfx, $base-font-size: $base-font-size));
}
}
@if $prfx == 'ms' {
@if $ms-first {
$ms: breakpoint-switch($bkpt, $media-string, true, $prfx, $base-font-size: $base-font-size);
$ms-first: false;
}
@else {
$ms: join($ms, breakpoint-switch($bkpt, $media-string, $prefix: $prfx, $base-font-size: $base-font-size));
}
}
}
} }
$query-string: breakpoint-parse($mq);
} }
@else { @else {
@each $bkpt in $breakpoint { $query-string: breakpoint-parse($query);
@if $first == true {
$query: breakpoint-switch($bkpt, $media-string, true, $base-font-size: $base-font-size);
$first: false;
}
@else {
$query: join($query, breakpoint-switch($bkpt, $media-string, $base-font-size: $base-font-size));
}
}
} }
} }
@if $breakpoint-no-queries { // Allow for an as-needed override or usage of no query fallback.
@if $no-query { @if $no-query != false {
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh('no queries', true); $query-fallback: $no-query;
@if $breakpoint-no-query-wrappers and type-of($no-query) == string { }
#{$no-query} & {
// Print Out Query String
@if not $breakpoint-no-queries {
@media #{$query-string} {
@content;
}
}
@if $breakpoint-no-query-fallbacks != false {
$type: type-of($breakpoint-no-query-fallbacks);
$print: false;
@if ($type == 'bool') {
$print: true;
}
@else if ($type == 'string') {
@if $query-fallback == $breakpoint-no-query-fallbacks {
$print: true;
}
}
@else if ($type == 'list') {
@each $wrapper in $breakpoint-no-query-fallbacks {
@if $query-fallback == $wrapper {
$print: true;
}
}
}
// Write Fallback
@if ($query-fallback != false) and ($print == true) {
$type-fallback: type-of($query-fallback);
@if ($type-fallback != 'bool') {
#{$query-fallback} & {
@content; @content;
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh('no query wrapper', $no-query);
} }
} }
@else { @else {
@ -311,236 +146,6 @@ $TXkgdmFyaWFibGUhIEdvIGF3YXkh: () !default;
} }
} }
} }
@else {
@if $breakpoint-no-query-wrappers and type-of($no-query) == string {
#{$no-query} & {
@content;
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh('no query wrapper', $no-query);
}
}
@if $query {
@media #{$query} {
@content;
}
}
@else {
$pf-queries: $webkit, $moz, $o, $ms;
$pf-query: ();
@each $pfq in $pf-queries { @include private-breakpoint-reset-contexts();
@if $pfq {
$pf-query: append($pf-query, $pfq, comma);
}
}
@media #{$pf-query} {
@content;
}
}
}
@include TXkgcmVzZXQhIEdvIGF3YXkh;
}
@function breakpoint-switch($breakpoint, $media-string, $first: false, $prefix: false, $base-font-size: $breakpoint-base-font-size) {
// Feature/Value/Length/Query Placehoders:
$feature: false !default;
$min-feature: "min-#{$breakpoint-default-pair}" !default;
$max-feature: "max-#{$breakpoint-default-pair}" !default;
$value: false !default;
$min-value: false !default;
$max-value: false !default;
$length: false !default;
$query: false !default;
$length: length($breakpoint);
// Check to see if there is only one item.
@if $length == 1 {
$value: $breakpoint;
@if type-of($breakpoint) == 'number' {
$feature: $breakpoint-default-feature;
}
// If EM Breakpoints are active, do it!
@if $breakpoint-to-ems and type-of($value) == 'number' {
$value: breakpoint-to-base-em($value, $base-font-size);
}
// Build the Query
$query: breakpoint-generate($media-string, $feature, $value, $first);
// Set Context
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh($feature, $value);
}
@else if $length == 2 {
// If both are numbers, we've got a double!
@if type-of(nth($breakpoint, 1)) == 'number' and type-of(nth($breakpoint, 2)) == 'number' {
// See which is larger.
@if nth($breakpoint, 1) > nth($breakpoint, 2) {
$min-value: nth($breakpoint, 2);
$max-value: nth($breakpoint, 1);
}
@else {
$min-value: nth($breakpoint, 1);
$max-value: nth($breakpoint, 2);
}
// If EM Breakpoints are active, do it!
@if $breakpoint-to-ems and type-of($min-value) == 'number' {
$min-value: breakpoint-to-base-em($min-value, $base-font-size);
}
@if $breakpoint-to-ems and type-of($max-value) == 'number' {
$max-value: breakpoint-to-base-em($max-value, $base-font-size);
}
// Min/Max for given
$query: breakpoint-generate($media-string, $min-feature, $min-value, $first);
$query: join($query, breakpoint-generate($media-string, $max-feature, $max-value));
// Set Context
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh($min-feature, $min-value);
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh($max-feature, $max-value);
}
@else if type-of(nth($breakpoint, 1)) == 'string' and type-of(nth($breakpoint, 2)) == 'string' {
@if breakpoint-string-value(nth($breakpoint, 1)) == true {
$feature: nth($breakpoint, 1);
$value: nth($breakpoint, 2);
}
@else {
$feature: nth($breakpoint, 2);
$value: nth($breakpoint, 1);
}
// If EM Breakpoints are active, do it!
@if $breakpoint-to-ems and type-of($value) == 'number' {
$value: breakpoint-to-base-em($value, $base-font-size);
}
// Build the Query
$query: breakpoint-generate($media-string, $feature, $value, $first);
// Set Context
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh($feature, $value);
}
@else {
// Because we can have either the first or second option be the feature, we switch on it.
@if type-of(nth($breakpoint, 1)) == string {
$feature: nth($breakpoint, 1);
$value: nth($breakpoint, 2);
}
@else if type-of(nth($breakpoint, 2)) == string {
$feature: nth($breakpoint, 2);
$value: nth($breakpoint, 1);
}
@if $feature == 'device-pixel-ratio' or $feature == 'min-device-pixel-ratio' or $feature == 'max-device-pixel-ratio' {
$feature: breakpoint-experimental($feature, $prefix);
//$value: 96 * $value * 1dpi;
// @if $feature == 'device-pixel-ratio' {
// $feature: 'resolution';
// }
// @else if $feature == 'min-device-pixel-ratio' {
// $feature: 'min-resolution';
// }
// @else if $feature == 'max-device-pixel-ratio' {
// $feature: 'max-resolution';
// }
}
// If EM Breakpoints are active, do it!
@if $breakpoint-to-ems and type-of($value) == 'number' {
$value: breakpoint-to-base-em($value, $base-font-size);
}
// Build the Query
$query: breakpoint-generate($media-string, $feature, $value, $first);
// Set Context
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh($feature, $value);
}
}
@else if $length == 3 {
@if type-of(nth($breakpoint, 1)) == 'string' {
$feature: nth($breakpoint, 1);
// See which is larger.
@if nth($breakpoint, 2) > nth($breakpoint, 3) {
$min-value: nth($breakpoint, 3);
$max-value: nth($breakpoint, 2);
}
@else {
$min-value: nth($breakpoint, 2);
$max-value: nth($breakpoint, 3);
}
}
@else {
$feature: nth($breakpoint, 3);
// See which is larger.
@if nth($breakpoint, 1) > nth($breakpoint, 2) {
$min-value: nth($breakpoint, 2);
$max-value: nth($breakpoint, 1);
}
@else {
$min-value: nth($breakpoint, 1);
$max-value: nth($breakpoint, 2);
}
}
// If EM Breakpoints are active, do it!
@if $breakpoint-to-ems and type-of($min-value) == 'number' {
$min-value: breakpoint-to-base-em($min-value, $base-font-size);
}
@if $breakpoint-to-ems and type-of($max-value) == 'number' {
$max-value: breakpoint-to-base-em($max-value, $base-font-size);
}
@if breakpoint-min-max($feature) == true {
@if $feature == 'device-pixel-ratio' {
$min-feature: breakpoint-experimental('min-#{$feature}', $prefix);
$max-feature: breakpoint-experimental('max-#{$feature}', $prefix);
}
@else {
$min-feature: 'min-#{$feature}';
$max-feature: 'max-#{$feature}';
}
// Min/Max for given
$query: breakpoint-generate($media-string, $min-feature, $min-value, $first);
$query: join($query, breakpoint-generate($media-string, $max-feature, $max-value));
// Set Context
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh($min-feature, $min-value);
$context: U2V0IHlvdXIgb3duIGRhbW4gY29udGV4dHMh($max-feature, $max-value);
}
@else {
@warn '#{$feature} cannot have a min/max value!';
}
}
@return $query;
}
@function breakpoint-generate($media, $feature, $value, $first: false) {
// Media Query string to be returned
$new-string: "";
// If it's the first item, it gets special treatment
@if $first == true {
// And Statement
$and: 'and ';
// If $media is blank (i.e. all), remove and statement
@if $media == '' {
$and: '';
}
@if $feature != false {
$new-string: #{$media}unquote("#{$and}(#{$feature}: #{$value})");
}
@else {
$new-string: #{$media}unquote("#{$and}(#{$value})");
}
}
@else {
@if $feature != false {
$new-string: unquote("and (#{$feature}: #{$value})");
}
@else {
$new-string: unquote("and (#{$value})");
}
}
@return $new-string;
} }

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@ -0,0 +1,133 @@
//////////////////////////////
// Private Breakpoint Variables
//////////////////////////////
$private-breakpoint-context-holder: ();
$private-breakpoint-context-placeholder: 0;
//////////////////////////////
// Breakpoint Has Context
// Returns whether or not you are inside a Breakpoint query
//////////////////////////////
@function breakpoint-has-context() {
@if length($private-breakpoint-context-placeholder) {
@return true;
}
@else {
@return false;
}
}
//////////////////////////////
// Breakpoint Get Context
// $feature: Input feature to get it's current MQ context. Returns false if no context
//////////////////////////////
@function breakpoint-get-context($feature) {
@each $context in $private-breakpoint-context-holder {
@if $feature == nth($context, 1) {
// strip feature name
$values: ();
@for $i from 2 through length($context) {
$values: append($values, nth($context, $i), comma);
}
$length: length($values) + 1;
@for $i from $length through $private-breakpoint-context-placeholder {
// Apply the Default Media type if feature is media
@if $feature == 'media' {
$values: append($values, $breakpoint-default-media, comma);
}
@else {
$values: append($values, false, comma);
}
}
@return $values;
}
}
@return false;
}
//////////////////////////////
// Private function to set context
//////////////////////////////
@function private-breakpoint-set-context($feature, $value) {
@if $value == 'monochrome' {
$feature: 'monochrome';
}
$placeholder-plus-one: ($private-breakpoint-context-placeholder + 1);
$holder: ();
@if $private-breakpoint-context-placeholder == 1 {
$holder: ($feature $value);
$private-breakpoint-context-holder: append($private-breakpoint-context-holder, $holder, comma);
@return true;
} @else {
$feature-used: false;
@each $context in $private-breakpoint-context-holder {
@if nth($context, 1) == $feature {
$feature-used: $context;
}
}
@if $feature-used != false {
$holder: $feature;
@for $i from 2 through $placeholder-plus-one {
@if $i <= length($feature-used) {
$holder: append($holder, nth($feature-used, $i), space);
} @elseif $i < $placeholder-plus-one {
$holder: append($holder, false, space);
} @else {
$holder: append($holder, $value, space);
}
}
}
@elseif $feature-used == false {
$holder: $feature;
@for $i from 2 through $placeholder-plus-one {
@if $i < $placeholder-plus-one {
// Apply the Default Media type if feature is media
@if $feature == 'media' {
$holder: append($holder, $breakpoint-default-media, space);
}
@else {
$holder: append($holder, false, space);
}
} @else {
$holder: append($holder, $value, space);
}
}
}
// Rebuild context
$rebuild: ();
@if $feature-used != false {
@each $context in $private-breakpoint-context-holder {
@if nth($context, 1) == nth($holder, 1) {
$rebuild: append($rebuild, $holder, comma);
} @else {
$rebuild: append($rebuild, $context, comma);
}
}
} @else {
$rebuild: append($private-breakpoint-context-holder, $holder, comma);
}
$private-breakpoint-context-holder: $rebuild;
}
@return true;
}
//////////////////////////////
// Private function to reset context
//////////////////////////////
@mixin private-breakpoint-reset-contexts {
$private-breakpoint-context-holder: ();
$private-breakpoint-context-placeholder: 0;
}

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//////////////////////////////
// Converts the input value to Base EMs
//////////////////////////////
@function breakpoint-to-base-em($value) {
$value-unit: unit($value);
// Will convert relative EMs into root EMs.
@if $breakpoint-base-font-size and type-of($breakpoint-base-font-size) == 'number' and $value-unit == 'em' {
$base-unit: unit($breakpoint-base-font-size);
@if $base-unit == 'px' or $base-unit == '%' or $base-unit == 'em' or $base-unit == 'pt' {
@return base-conversion($value) / base-conversion($breakpoint-base-font-size) * 1em;
}
@else {
@warn '#{$breakpoint-base-font-size} is not set in valid units for font size!';
@return false;
}
}
@else {
@return base-conversion($value);
}
}
@function base-conversion($value) {
$unit: unit($value);
@if $unit == 'px' {
@return $value / 16px * 1em;
}
@else if $unit == '%' {
@return $value / 100% * 1em;
}
@else if $unit == 'em' {
@return $value;
}
@else if $unit == 'pt' {
@return $value / 12pt * 1em;
}
@else {
@return $value;
// @warn 'Everything is terrible! What have you done?!';
}
}
//////////////////////////////
// Returns whether the feature can have a min/max pair
//////////////////////////////
$breakpoint-min-max-features: 'color',
'color-index',
'aspect-ratio',
'device-aspect-ratio',
'device-height',
'device-width',
'height',
'monochrome',
'resolution',
'width';
@function breakpoint-min-max($feature) {
@each $item in $breakpoint-min-max-features {
@if $feature == $item {
@return true;
}
}
@return false;
}
//////////////////////////////
// Returns whether the feature can have a string value
//////////////////////////////
$breakpoint-string-features: 'orientation',
'scan',
'color',
'aspect-ratio',
'device-aspect-ratio',
'pointer',
'luminosity';
@function breakpoint-string-value($feature) {
@each $item in $breakpoint-string-features {
@if breakpoint-min-max($item) {
@if $feature == 'min-#{$item}' or $feature == 'max-#{$item}' {
@return true;
}
}
@else if $feature == $item {
@return true;
}
}
@return false;
}
//////////////////////////////
// Returns whether the feature is a media type
//////////////////////////////
$breakpoint-media-types: 'all',
'braille',
'embossed',
'handheld',
'print',
'projection',
'screen',
'speech',
'tty',
'tv';
@function breakpoint-is-media($feature) {
@each $media in $breakpoint-media-types {
@if ($feature == $media) or ($feature == 'not #{$media}') or ($feature == 'only #{$media}') {
@return true;
}
}
@return false;
}
//////////////////////////////
// Returns whether the feature can stand alone
//////////////////////////////
$breakpoint-single-string-features: 'color',
'color-index',
'grid',
'monochrome';
@function breakpoint-single-string($feature) {
@each $item in $breakpoint-single-string-features {
@if $feature == $item {
@return true;
}
}
@return false;
}
//////////////////////////////
// Returns whether the feature
//////////////////////////////
@function breakpoint-is-resolution($feature) {
$resolutions: 'device-pixel-ratio', 'dpr';
@if $breakpoint-resolutions {
$resolutions: append($resolutions, 'resolution');
}
@each $reso in $resolutions {
@if index($feature, $reso) or index($feature, 'min-#{$reso}') or index($feature, 'max-#{$reso}') {
@return true;
}
}
@return false;
}

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@function breakpoint-no-query($query) {
@if type-of($query) == 'list' {
$keyword: nth($query, 1);
@if type-of($keyword) == 'string' and ($keyword == 'no-query' or $keyword == 'no query' or $keyword == 'fallback') {
@return nth($query, 2);
}
@else {
@return false;
}
}
@else {
@return false;
}
}

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//////////////////////////////
// Import Parser Pieces
//////////////////////////////
@import "parsers/query";
@import "parsers/single";
@import "parsers/double";
@import "parsers/triple";
@import "parsers/resolution";
//////////////////////////////
// General Breakpoint Parser
//////////////////////////////
@function breakpoint-parse($query) {
$private-breakpoint-context-placeholder: $private-breakpoint-context-placeholder + 1;
// Set up Media Type
$query-print: '';
$force-all: (($breakpoint-force-media-all == true) and ($breakpoint-default-media == 'all'));
$empty-media: true;
@if ($force-all == true) or ($breakpoint-default-media != 'all') {
// Force the print of the default media type if (force all is true and default media type is all) or (default media type is not all)
$query-print: $breakpoint-default-media;
$empty-media: false;
}
$query-resolution: false;
$query-holder: breakpoint-parse-query($query);
// Loop over each parsed out query and write it to $query-print
$first: true;
@each $feature in $query-holder {
$length: length($feature);
// Parse a single feature
@if ($length == 1) {
// Feature is currenty a list, grab the actual value
$feature: nth($feature, 1);
// Media Type must by convention be the first item, so it's safe to flat override $query-print, which right now should only be the default media type
@if (breakpoint-is-media($feature)) {
@if ($force-all == true) or ($feature != 'all') {
// Force the print of the default media type if (force all is true and default media type is all) or (default media type is not all)
$query-print: $feature;
$empty-media: false;
// Set Context
$context-setter: private-breakpoint-set-context(media, $query-print);
}
}
@else {
$parsed: breakpoint-parse-single($feature, $empty-media, $first);
$query-print: '#{$query-print} #{$parsed}';
$first: false;
}
}
// Parse a double feature
@else if ($length == 2) {
@if (breakpoint-is-resolution($feature) != false) {
$query-resolution: $feature;
}
@else {
$parsed: null;
// If it's a string/number pair,
// we check to see if one is a single-string value,
// then we parse it as a normal double
$alpha: nth($feature, 1);
$beta: nth($feature, 2);
@if breakpoint-single-string($alpha) or breakpoint-single-string($beta) {
$parsed: breakpoint-parse-single($alpha, $empty-media, $first);
$query-print: '#{$query-print} #{$parsed}';
$first: false;
$parsed: breakpoint-parse-single($beta, $empty-media, $first);
$query-print: '#{$query-print} #{$parsed}';
}
@else {
$parsed: breakpoint-parse-double($feature, $empty-media, $first);
$query-print: '#{$query-print} #{$parsed}';
$first: false;
}
}
}
// Parse a triple feature
@else if ($length == 3) {
$parsed: breakpoint-parse-triple($feature, $empty-media, $first);
$query-print: '#{$query-print} #{$parsed}';
$first: false;
}
}
@if ($query-resolution != false) {
$query-print: breakpoint-build-resolution($query-print, $query-resolution, $empty-media, $first);
}
// @return 'all';
@return $query-print;
}

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////////////////////////
// Default the Breakpoints variable
////////////////////////
$breakpoints: () !default;
////////////////////////
// Respond-to API Mixin
////////////////////////
@mixin respond-to($context, $no-query: false) {
@if type-of($breakpoints) != 'list' {
// Just in case someone writes gibberish to the $breakpoints variable.
@warn "Your breakpoints aren't a list! See https://github.com/snugug/respond-to#api if you'd like a reminder on how to use Respond-to";
}
@if length($breakpoints) != 0 {
// If there's only one breakpoint, SASS will think it's a space separated list :P
@if length($breakpoints) == 2 and type-of(nth($breakpoints, 1)) != 'list' {
$breakpoints: append((), (nth($breakpoints, 1), nth($breakpoints, 2)));
}
@each $bkpt in $breakpoints {
@if $context == nth($bkpt, 1) {
$length: length($bkpt);
$mq: false !default;
@for $i from 2 through $length {
// If it's the first item, override $mq
@if $i == 2 {
$mq: nth($bkpt, $i);
}
// Else, join $mq
@else {
$mq: join($mq, nth($bkpt, $i));
}
}
@include breakpoint($mq, $no-query) {
@content;
}
}
}
}
@else {
@warn "You haven't created any breakpoints yet! Make some already! See https://github.com/snugug/respond-to#api if you'd like a reminder on how to use Respond-to";
@content;
}
}
//////////////////////////////
// Add Breakpoint to Breakpoints
//////////////////////////////
@function add-breakpoint($name, $bkpt) {
$bkpt: $name $bkpt;
$output: append($breakpoints, $bkpt, 'comma');
@return $output;
}

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//////////////////////////////
// Import Pieces
//////////////////////////////
@import "double/default-pair";
@import "double/double-string";
@import "double/default";
@function breakpoint-parse-double($feature, $empty-media, $first) {
$parsed: '';
$leader: '';
// If we're forcing
@if not ($empty-media) or not ($first) {
$leader: 'and ';
}
$first: nth($feature, 1);
$second: nth($feature, 2);
// If we've got two numbers, we know we need to use the default pair because there are no media queries that has a media feature that is a number
@if type-of($first) == 'number' and type-of($second) == 'number' {
$parsed: breakpoint-parse-default-pair($first, $second);
}
// If they are both strings, we send it through the string parser
@else if type-of($first) == 'string' and type-of($second) == 'string' {
$parsed: breakpoint-parse-double-string($first, $second);
}
// If it's a string/number pair, we parse it as a normal double
@else {
$parsed: breakpoint-parse-double-default($first, $second);
}
@return $leader + $parsed;
}

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@function breakpoint-parse-query($query) {
// Parse features out of an individual query
$feature-holder: ();
$query-holder: ();
$length: length($query);
@if $length == 2 {
// If we've got a string/number, number/string, check to see if it's a valid string/number pair or two singles
@if (type-of(nth($query, 1)) == 'string' and type-of(nth($query, 2)) == 'number') or (type-of(nth($query, 1)) == 'number' and type-of(nth($query, 2)) == 'string') {
$number: '';
$value: '';
@if type-of(nth($query, 1)) == 'string' {
$number: nth($query, 2);
$value: nth($query, 1);
}
@else {
$number: nth($query, 1);
$value: nth($query, 2);
}
// If the string value can be a single value, check to see if the number passed in is a valid input for said single value. Fortunately, all current single-value options only accept unitless numbers, so this check is easy.
@if breakpoint-single-string($value) {
@if unitless($number) {
$feature-holder: append($value, $number, space);
$query-holder: append($query-holder, $feature-holder, comma);
@return $query-holder;
}
}
// If the string is a media type, split the query
@if breakpoint-is-media($value) {
$query-holder: append($query-holder, nth($query, 1));
$query-holder: append($query-holder, nth($query, 2));
@return $query-holder;
}
// If it's not a single feature, we're just going to assume it's a proper string/value pair, and roll with it.
@else {
$feature-holder: append($value, $number, space);
$query-holder: append($query-holder, $feature-holder, comma);
@return $query-holder;
}
}
// If they're both numbers, we assume it's a double and roll with that
@else if (type-of(nth($query, 1)) == 'number' and type-of(nth($query, 2)) == 'number') {
$feature-holder: append(nth($query, 1), nth($query, 2), space);
$query-holder: append($query-holder, $feature-holder, comma);
@return $query-holder;
}
// If they're both strings and neither are singles, we roll with that.
@else if (type-of(nth($query, 1)) == 'string' and type-of(nth($query, 2)) == 'string') {
@if not breakpoint-single-string(nth($query, 1)) and not breakpoint-single-string(nth($query, 2)) {
$feature-holder: append(nth($query, 1), nth($query, 2), space);
$query-holder: append($query-holder, $feature-holder, comma);
@return $query-holder;
}
}
}
@else if $length == 3 {
// If we've got three items and none is a list, we check to see
@if type-of(nth($query, 1)) != 'list' and type-of(nth($query, 2)) != 'list' and type-of(nth($query, 3)) != 'list' {
// If none of the items are single string values and none of the values are media values, we're good.
@if (not breakpoint-single-string(nth($query, 1)) and not breakpoint-single-string(nth($query, 2)) and not breakpoint-single-string(nth($query, 3))) and ((not breakpoint-is-media(nth($query, 1)) and not breakpoint-is-media(nth($query, 2)) and not breakpoint-is-media(nth($query, 3)))) {
$feature-holder: append(nth($query, 1), nth($query, 2), space);
$feature-holder: append($feature-holder, nth($query, 3), space);
$query-holder: append($query-holder, $feature-holder, comma);
@return $query-holder;
}
}
}
// If it's a single item, or if it's not a special case double or tripple, we can simply return the query.
@return $query;
}

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@import "resolution/resolution";
@function breakpoint-build-resolution($query-print, $query-resolution, $empty-media, $first) {
$leader: '';
// If we're forcing
@if not ($empty-media) or not ($first) {
$leader: 'and ';
}
@if $breakpoint-resolutions and $query-resolution {
$resolutions: breakpoint-make-resolutions($query-resolution);
$length: length($resolutions);
$query-holder: '';
@for $i from 1 through $length {
$query: '#{$query-print} #{$leader}#{nth($resolutions, $i)}';
@if $i == 1 {
$query-holder: $query;
}
@else {
$query-holder: '#{$query-holder}, #{$query}';
}
}
@return $query-holder;
}
@else {
// Return with attached resolution
@return $query-print;
}
}

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//////////////////////////////
// Import Pieces
//////////////////////////////
@import "single/default";
@function breakpoint-parse-single($feature, $empty-media, $first) {
$parsed: '';
$leader: '';
// If we're forcing
@if not ($empty-media) or not ($first) {
$leader: 'and ';
}
// If it's a single feature that can stand alone, we let it
@if (breakpoint-single-string($feature)) {
$parsed: $feature;
// Set Context
$context-setter: private-breakpoint-set-context($feature, $feature);
}
// If it's not a stand alone feature, we pass it off to the default handler.
@else {
$parsed: breakpoint-parse-default($feature);
}
@return $leader + '(' + $parsed + ')';
}

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//////////////////////////////
// Import Pieces
//////////////////////////////
@import "triple/default";
@function breakpoint-parse-triple($feature, $empty-media, $first) {
$parsed: '';
$leader: '';
// If we're forcing
@if not ($empty-media) or not ($first) {
$leader: 'and ';
}
// separate the string features from the value numbers
$string: null;
$numbers: null;
@each $val in $feature {
@if type-of($val) == string {
$string: $val;
}
@else {
@if type-of($numbers) == 'null' {
$numbers: $val;
}
@else {
$numbers: append($numbers, $val);
}
}
}
$parsed: breakpoint-parse-triple-default($string, nth($numbers, 1), nth($numbers, 2));
@return $leader + $parsed;
}

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@function breakpoint-parse-default-pair($first, $second) {
$default: $breakpoint-default-pair;
$min: '';
$max: '';
// Sort into min and max
$min: min($first, $second);
$max: max($first, $second);
// Set Context
$context-setter: private-breakpoint-set-context(min-#{$default}, $min);
$context-setter: private-breakpoint-set-context(max-#{$default}, $max);
// Make them EMs if need be
@if ($breakpoint-to-ems == true) {
$min: breakpoint-to-base-em($min);
$max: breakpoint-to-base-em($max);
}
@return '(min-#{$default}: #{$min}) and (max-#{$default}: #{$max})';
}

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@function breakpoint-parse-double-default($first, $second) {
$feature: '';
$value: '';
@if type-of($first) == 'string' {
$feature: $first;
$value: $second;
}
@else {
$feature: $second;
$value: $first;
}
// Set Context
$context-setter: private-breakpoint-set-context($feature, $value);
@if ($breakpoint-to-ems == true) {
$value: breakpoint-to-base-em($value);
}
@return '(#{$feature}: #{$value})'
}

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@function breakpoint-parse-double-string($first, $second) {
$feature: '';
$value: '';
// Test to see which is the feature and which is the value
@if (breakpoint-string-value($first) == true) {
$feature: $first;
$value: $second;
}
@else {
$feature: $second;
$value: $first;
}
// Set Context
$context-setter: private-breakpoint-set-context($feature, $value);
@return '(#{$feature}: #{$value})';
}

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@function breakpoint-make-resolutions($resolution) {
$length: length($resolution);
$output: ();
@if $length == 2 {
$feature: '';
$value: '';
// Find which is number
@if type-of(nth($resolution, 1)) == 'number' {
$value: nth($resolution, 1);
}
@else {
$value: nth($resolution, 2);
}
// Determine min/max/standard
@if index($resolution, 'min-resolution') {
$feature: 'min-';
}
@else if index($resolution, 'max-resolution') {
$feature: 'max-';
}
$standard: '(#{$feature}resolution: #{$value})';
// If we're not dealing with dppx,
@if unit($value) != 'dppx' {
$base: 96dpi;
@if unit($value) == 'dpcm' {
$base: 243.84dpcm;
}
// Write out feature tests
$webkit: '';
$moz: '';
$webkit: '(-webkit-#{$feature}device-pixel-ratio: #{$value / $base})';
$moz: '(#{$feature}-moz-device-pixel-ratio: #{$value / $base})';
// Append to output
$output: append($output, $standard, space);
$output: append($output, $webkit, space);
$output: append($output, $moz, space);
}
@else {
$webkit: '';
$moz: '';
$webkit: '(-webkit-#{$feature}device-pixel-ratio: #{$value / 1dppx})';
$moz: '(#{$feature}-moz-device-pixel-ratio: #{$value / 1dppx})';
$fallback: '(#{$feature}resolution: #{$value / 1dppx * 96dpi})';
// Append to output
$output: append($output, $standard, space);
$output: append($output, $webkit, space);
$output: append($output, $moz, space);
$output: append($output, $fallback, space);
}
}
@return $output;
}

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@function breakpoint-parse-default($feature) {
$default: $breakpoint-default-feature;
// Set Context
$context-setter: private-breakpoint-set-context($default, $feature);
@if ($breakpoint-to-ems == true) and (type-of($feature) == 'number') {
@return '#{$default}: #{breakpoint-to-base-em($feature)}';
}
@else {
@return '#{$default}: #{$feature}';
}
}

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@function breakpoint-parse-triple-default($feature, $first, $second) {
// Sort into min and max
$min: min($first, $second);
$max: max($first, $second);
// Set Context
$context-setter: private-breakpoint-set-context(min-#{$feature}, $min);
$context-setter: private-breakpoint-set-context(max-#{$feature}, $max);
// Make them EMs if need be
@if ($breakpoint-to-ems == true) {
$min: breakpoint-to-base-em($min);
$max: breakpoint-to-base-em($max);
}
@return '(min-#{$feature}: #{$min}) and (max-#{$feature}: #{$max})';
}