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sass/inuitcss/generic/_mixins.scss

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+@charset "UTF-8";
+/*------------------------------------*\
+    $MIXINS
+\*------------------------------------*/
+/**
+ * Create a fully formed type style (sizing and vertical rhythm) by passing in a
+ * single value, e.g.:
+ *
+   `@include font-size(10px);`
+ *
+ * Thanks to @redclov3r for the `line-height` Sass:
+ * twitter.com/redclov3r/status/250301539321798657
+ */
+@mixin font-size($font-size, $line-height:true){
+    font-size:$font-size;
+    font-size:($font-size / $base-font-size)*1rem;
+    @if $line-height == true{
+        line-height:ceil($font-size / $base-line-height) * ($base-line-height / $font-size);
+    }
+}
+
+
+/**
+ * Style any number of headings in one fell swoop, e.g.:
+ *
+   .foo{
+       @include headings(1, 3){
+           color:#BADA55;
+       }
+    }
+ *
+ * With thanks to @lar_zzz, @paranoida, @rowanmanning and ultimately
+ * @thierrylemoulec for refining and improving my initial mixin.
+ */
+@mixin headings($from: 1, $to: 6){
+    %base-heading {
+        @content
+    }
+
+    @if $from >= 1 and $to <= 6{
+        @for $i from $from through $to{
+            h#{$i}{
+                @extend %base-heading;
+            }
+        }
+    }
+}
+
+
+/**
+ * Create vendor-prefixed CSS in one go, e.g.
+ *
+   `@include vendor(border-radius, 4px);`
+ *
+ */
+@mixin vendor($property, $value...){
+    -webkit-#{$property}:$value;
+       -moz-#{$property}:$value;
+        -ms-#{$property}:$value;
+         -o-#{$property}:$value;
+            #{$property}:$value;
+}
+
+
+/**
+ * Create CSS keyframe animations for all vendors in one go, e.g.:
+ *
+   .foo{
+       @include vendor(animation, shrink 3s);
+   }
+
+   @include keyframe(shrink){
+       from{
+           font-size:5em;
+       }
+   }
+ *
+ * Courtesy of @integralist: twitter.com/integralist/status/260484115315437569
+ */
+@mixin keyframe ($animation-name){
+    @-webkit-keyframes $animation-name{
+        @content;
+    }
+
+    @-moz-keyframes $animation-name{
+        @content;
+    }
+
+    @-ms-keyframes $animation-name{
+        @content;
+    }
+
+    @-o-keyframes $animation-name{
+        @content;
+    }
+
+    @keyframes $animation-name{
+        @content;
+    }
+}
+
+
+/**
+ * Force overly long spans of text to truncate, e.g.:
+ *
+   `@include truncate(100%);`
+ *
+ * Where `$truncation-boundary` is a united measurement.
+ */
+@mixin truncate($truncation-boundary){
+    max-width:$truncation-boundary;
+    white-space:nowrap;
+    overflow:hidden;
+    text-overflow:ellipsis;
+}
+
+
+/**
+ * CSS arrows!!! But... before you read on, you might want to grab a coffee...
+ *
+ * This mixin creates a CSS arrow on a given element. We can have the arrow
+ * appear in one of 12 locations, thus:
+ *
+ *       01    02    03
+ *    +------------------+
+ * 12 |                  | 04
+ *    |                  |
+ * 11 |                  | 05
+ *    |                  |
+ * 10 |                  | 06
+ *    +------------------+
+ *       09    08    07
+ *
+ * You pass this position in along with a desired arrow color and optional
+ * border color, for example:
+ *
+ * `@include arrow(top, left, red)`
+ *
+ * for just a single, red arrow, or:
+ *
+ * `@include arrow(bottom, center, red, black)`
+ *
+ * which will create a red triangle with a black border which sits at the bottom
+ * center of the element. Call the mixin thus:
+ *
+   .foo{
+       background-color:#BADA55;
+       border:1px solid #ACE;
+       @include arrow(top, left, #BADA55, #ACE);
+   }
+ *
+ */
+@mixin arrow($arrow-edge, $arrow-location, $arrow-color, $border-color: $arrow-color){
+
+    @if $arrow-edge == top{
+
+        @extend %arrow--top;
+
+        &:before{
+            border-bottom-color:$border-color!important;
+        }
+
+        &:after{
+            border-bottom-color:$arrow-color!important;
+        }
+
+        @if $arrow-location == left{
+            @extend %arrow--left;
+        }
+
+        @if $arrow-location == center{
+            @extend %arrow--center;
+        }
+
+        @if $arrow-location == right{
+            @extend %arrow--right;
+        }
+
+    }
+
+    @if $arrow-edge == right{
+
+        @extend %arrow--far;
+
+        &:before{
+            border-left-color:$border-color!important;
+        }
+
+        &:after{
+            border-left-color:$arrow-color!important;
+        }
+
+        @if $arrow-location == top{
+            @extend %arrow--upper;
+        }
+
+        @if $arrow-location == center{
+            @extend %arrow--middle;
+        }
+
+        @if $arrow-location == bottom{
+            @extend %arrow--lower;
+        }
+
+    }
+
+    @if $arrow-edge == bottom{
+
+        @extend %arrow--bottom;
+
+        &:before{
+            border-top-color:$border-color!important;
+        }
+
+        &:after{
+            border-top-color:$arrow-color!important;
+        }
+
+        @if $arrow-location == left{
+            @extend %arrow--left;
+        }
+
+        @if $arrow-location == center{
+            @extend %arrow--center;
+        }
+
+        @if $arrow-location == right{
+            @extend %arrow--right;
+        }
+
+    }
+
+    @if $arrow-edge == left{
+
+        @extend %arrow--near;
+
+        &:before{
+            border-right-color:$border-color!important;
+        }
+
+        &:after{
+            border-right-color:$arrow-color!important;
+        }
+
+        @if $arrow-location == top{
+            @extend %arrow--upper;
+        }
+
+        @if $arrow-location == center{
+            @extend %arrow--middle;
+        }
+
+        @if $arrow-location == bottom{
+            @extend %arrow--lower;
+        }
+
+    }
+
+}
+
+
+/**
+ * Media query mixin.
+ *
+ * It’s not great practice to define solid breakpoints up-front, preferring to
+ * modify your design when it needs it, rather than assuming you’ll want a
+ * change at ‘mobile’. However, as inuit.css is required to take a hands off
+ * approach to design decisions, this is the closest we can get to baked-in
+ * responsiveness. It’s flexible enough to allow you to set your own breakpoints
+ * but solid enough to be frameworkified.
+ *
+ * We define some broad breakpoints in our vars file that are picked up here
+ * for use in a simple media query mixin. Our options are:
+ *
+ * palm
+ * lap
+ * lap-and-up
+ * portable
+ * desk
+ * desk-wide
+ *
+ * Not using a media query will, naturally, serve styles to all devices.
+ *
+ * `@include media-query(palm){ [styles here] }`
+ *
+ * We work out your end points for you:
+ */
+$palm-end:              $lap-start - 1px;
+$lap-end:               $desk-start - 1px;
+
+@mixin media-query($media-query){
+
+    @if $media-query == palm{
+
+        @media only screen and (max-width:$palm-end) { @content; }
+
+    }
+
+    @if $media-query == lap{
+
+        @media only screen and (min-width:$lap-start) and (max-width:$lap-end) { @content; }
+
+    }
+
+    @if $media-query == lap-and-up{
+
+        @media only screen and (min-width:$lap-start) { @content; }
+
+    }
+
+    @if $media-query == portable{
+
+        @media only screen and (max-width:$lap-end) { @content; }
+
+    }
+
+    @if $media-query == desk{
+
+        @media only screen and (min-width:$desk-start) { @content; }
+
+    }
+
+    @if $media-query == desk-wide{
+
+        @media only screen and (min-width: $desk-wide-start) { @content; }
+
+    }
+
+}