corrade-http-templates – Blame information for rev 61

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61 office 1 // Breakpoint viewport sizes and media queries.
2 //
3 // Breakpoints are defined as a map of (name: minimum width), order from small to large:
4 //
5 // (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px)
6 //
7 // The map defined in the `$grid-breakpoints` global variable is used as the `$breakpoints` argument by default.
8  
9 // Name of the next breakpoint, or null for the last breakpoint.
10 //
11 // >> breakpoint-next(sm)
12 // md
13 // >> breakpoint-next(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
14 // md
15 // >> breakpoint-next(sm, $breakpoint-names: (xs sm md lg xl))
16 // md
17 @function breakpoint-next($name, $breakpoints: $grid-breakpoints, $breakpoint-names: map-keys($breakpoints)) {
18 $n: index($breakpoint-names, $name);
19 @return if($n < length($breakpoint-names), nth($breakpoint-names, $n + 1), null);
20 }
21  
22 // Minimum breakpoint width. Null for the smallest (first) breakpoint.
23 //
24 // >> breakpoint-min(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
25 // 576px
26 @function breakpoint-min($name, $breakpoints: $grid-breakpoints) {
27 $min: map-get($breakpoints, $name);
28 @return if($min != 0, $min, null);
29 }
30  
31 // Maximum breakpoint width. Null for the largest (last) breakpoint.
32 // The maximum value is calculated as the minimum of the next one less 0.02px
33 // to work around the limitations of `min-` and `max-` prefixes and viewports with fractional widths.
34 // See https://www.w3.org/TR/mediaqueries-4/#mq-min-max
35 // Uses 0.02px rather than 0.01px to work around a current rounding bug in Safari.
36 // See https://bugs.webkit.org/show_bug.cgi?id=178261
37 //
38 // >> breakpoint-max(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
39 // 767.98px
40 @function breakpoint-max($name, $breakpoints: $grid-breakpoints) {
41 $next: breakpoint-next($name, $breakpoints);
42 @return if($next, breakpoint-min($next, $breakpoints) - .02px, null);
43 }
44  
45 // Returns a blank string if smallest breakpoint, otherwise returns the name with a dash in front.
46 // Useful for making responsive utilities.
47 //
48 // >> breakpoint-infix(xs, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
49 // "" (Returns a blank string)
50 // >> breakpoint-infix(sm, (xs: 0, sm: 576px, md: 768px, lg: 992px, xl: 1200px))
51 // "-sm"
52 @function breakpoint-infix($name, $breakpoints: $grid-breakpoints) {
53 @return if(breakpoint-min($name, $breakpoints) == null, "", "-#{$name}");
54 }
55  
56 // Media of at least the minimum breakpoint width. No query for the smallest breakpoint.
57 // Makes the @content apply to the given breakpoint and wider.
58 @mixin media-breakpoint-up($name, $breakpoints: $grid-breakpoints) {
59 $min: breakpoint-min($name, $breakpoints);
60 @if $min {
61 @media (min-width: $min) {
62 @content;
63 }
64 } @else {
65 @content;
66 }
67 }
68  
69 // Media of at most the maximum breakpoint width. No query for the largest breakpoint.
70 // Makes the @content apply to the given breakpoint and narrower.
71 @mixin media-breakpoint-down($name, $breakpoints: $grid-breakpoints) {
72 $max: breakpoint-max($name, $breakpoints);
73 @if $max {
74 @media (max-width: $max) {
75 @content;
76 }
77 } @else {
78 @content;
79 }
80 }
81  
82 // Media that spans multiple breakpoint widths.
83 // Makes the @content apply between the min and max breakpoints
84 @mixin media-breakpoint-between($lower, $upper, $breakpoints: $grid-breakpoints) {
85 $min: breakpoint-min($lower, $breakpoints);
86 $max: breakpoint-max($upper, $breakpoints);
87  
88 @if $min != null and $max != null {
89 @media (min-width: $min) and (max-width: $max) {
90 @content;
91 }
92 } @else if $max == null {
93 @include media-breakpoint-up($lower, $breakpoints) {
94 @content;
95 }
96 } @else if $min == null {
97 @include media-breakpoint-down($upper, $breakpoints) {
98 @content;
99 }
100 }
101 }
102  
103 // Media between the breakpoint's minimum and maximum widths.
104 // No minimum for the smallest breakpoint, and no maximum for the largest one.
105 // Makes the @content apply only to the given breakpoint, not viewports any wider or narrower.
106 @mixin media-breakpoint-only($name, $breakpoints: $grid-breakpoints) {
107 $min: breakpoint-min($name, $breakpoints);
108 $max: breakpoint-max($name, $breakpoints);
109  
110 @if $min != null and $max != null {
111 @media (min-width: $min) and (max-width: $max) {
112 @content;
113 }
114 } @else if $max == null {
115 @include media-breakpoint-up($name, $breakpoints) {
116 @content;
117 }
118 } @else if $min == null {
119 @include media-breakpoint-down($name, $breakpoints) {
120 @content;
121 }
122 }
123 }