Created
March 10, 2014 13:02
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Triangles SASS mixin
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/* ============================================================================ | |
Triangles SASS mixin | |
v1.1 | |
============================================================================ */ | |
//Creates one triangle or two triangles (arrows) pointed to the opposite sides. | |
//Apply to a parent selector (for example, article, not .tags itself). | |
//Takes width, height, direction (top/left...)/orientation (horizontal, vertical), color, and from none up to two selectors arguments. Do not forget to put selector args in quotes if they contain dots, combinators etc. | |
//Can be used to add triangles as pseudoelements to existing elements. Only works with two horizontal triangles for now. | |
//Cannot be used for creating triangles pointed at an angle (bottom-left etc...). | |
//To create one triangle using pseudoelement (:before): @include triangles(10px, 20px, top, red). The element currently in scope will be used. | |
//To create one triangle using real element: @include triangles(10px, 20px, top|bottom|left|right, red, li) | |
//To create two triangles using pseudoelements: @include triangles(10px, 20px, horizontal|vertical, red, li) | |
//To create two triangles using real elements: @include triangles(10px, 20px, horizontal|vertical, red, ".prev", ".next") | |
@mixin triangles($width, $height, $direction:horizontal, $color:black, $selector1:element, $selector2:"", $positioned:no) { | |
$side1_this:left; | |
$side2_this:right; | |
$side3:top; | |
$side4:bottom; | |
$opposite-single:bottom; | |
$pseudo-before:":before"; | |
$pseudo-after:":after"; | |
$positioned-top:0; | |
$positioned-left:0; | |
$positioned-right:0; | |
@if ($positioned != no and $selector2 == "") { | |
#{$selector1} {position:relative;} | |
#{$selector1}#{$pseudo-before}, #{$selector1}#{$pseudo-after} {position:absolute;} | |
} | |
@if ($direction == vertical or $direction == horizontal) { | |
@if ($direction == vertical) { | |
$side1_this:top; | |
$side2_this:bottom; | |
$side3:left; | |
$side4:right; | |
} | |
@if ($selector2 != "") { | |
$pseudo-before:""; | |
$pseudo-after:""; | |
} | |
@else { | |
$selector2:$selector1; | |
} | |
#{$selector1}#{$pseudo-before}, #{$selector2}#{$pseudo-after} {display:block; content:''; width:0; height:0; border-#{$side3}:$height/2 solid transparent; border-#{$side4}:$height/2 solid transparent; -moz-transform: scale(1.01);} //Added -moz-transform for antialiasing in FF | |
#{$selector1}#{$pseudo-before} {border-#{$side2_this}:$width solid $color;} | |
#{$selector2}#{$pseudo-after} {border-#{$side1_this}:$width solid $color;} | |
@if ($positioned != no and $direction == horizontal) { | |
$positioned-left:-$width; | |
$positioned-right:-$width; | |
#{$selector1}#{$pseudo-before}, #{$selector1}#{$pseudo-after} {top:$positioned-top;} | |
#{$selector1}#{$pseudo-before} {left:$positioned-left;} | |
#{$selector1}#{$pseudo-after} {right:$positioned-right;} | |
} | |
@else if ($positioned != no and $direction == vertical) { | |
$positioned-top:-$height; | |
$positioned-bottom:-$height; | |
#{$selector1}#{$pseudo-before}, #{$selector1}#{$pseudo-after} {left:$positioned-left;} | |
#{$selector1}#{$pseudo-before} {top:$positioned-top;} | |
#{$selector1}#{$pseudo-after} {bottom:$positioned-bottom;} | |
} | |
} | |
@else if ($direction == top or $direction == bottom or $direction == left or $direction == right) { | |
@if ($selector1 != element) { | |
$pseudo-before:""; | |
$pseudo-after:""; | |
} | |
@else { | |
$selector1:"&"; | |
} | |
@if ($direction == top) { | |
$side3:left; | |
$side4:right; | |
} | |
@else if ($direction == bottom) { | |
$opposite-single:top; | |
$side3:left; | |
$side4:right; | |
} | |
@else if ($direction == left) { | |
$opposite-single:right; | |
$side3:top; | |
$side4:bottom; | |
} | |
@else if ($direction == right) { | |
$opposite-single:left; | |
$side3:top; | |
$side4:bottom; | |
} | |
#{$selector1}#{$pseudo-before} {display:block; content:''; width:0; height:0; border-#{$side3}:$height/2 solid transparent; border-#{$side4}:$height/2 solid transparent; border-#{$opposite-single}:$width solid $color; } | |
} | |
} |
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