Created
March 10, 2014 13:02
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Grayscale&sepia filter SASS mixin (SVG filters supported)
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//This mixin is based on this code https://coderwall.com/p/mqk9ea | |
//It allows for a crossbrowser partial applying of both effects | |
//$toggle powers on and off the effect, $mode can be 'grayscale' or 'sepia' | |
@mixin grayscale( $toggle: "on", $mode:"grayscale", $amount: 1 ) { | |
$svg-type: "matrix"; | |
$svg-value-grayscale: "0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0"; | |
$svg-value-sepia: (0.393 + 0.607 * (1 - $amount)) + " " + (0.769 - 0.769 * (1 - $amount)) + " " + (0.189 - 0.189 * (1 - $amount)) + " 0 0 " + (0.349 - 0.349 * (1 - $amount)) + " " + (0.686 + 0.314 * (1 - $amount)) + " " + (0.168 - 0.168 * (1 - $amount)) + " 0 0 " + (0.272 - 0.272 * (1 - $amount)) + " " + (0.534 - 0.534 * (1 - $amount)) + " " + (0.131 + 0.869 * (1 - $amount)) + " 0 0 0 0 0 1 0"; | |
$ie-alpha: alpha(#{"opacity="}round( $amount * 100 ) ); | |
@if $amount != 1 and $mode == "grayscale" { | |
$svg-type: "saturate"; | |
$svg-value-grayscale: $amount; | |
} | |
@if $toggle == "on" { | |
@if $mode == "grayscale" { | |
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'#{$mode}\'><feColorMatrix type=\'#{$svg-type}\' values=\'#{$svg-value-grayscale}\'/></filter></svg>##{$mode}"); // Firefox 10+, Firefox on Android | |
filter: gray $ie-alpha; // IE6-9 | |
-webkit-filter: grayscale( round( $amount * 100% ) ); // Chrome 19+, Safari 6+, Safari 6+ iOS | |
filter: grayscale( round( $amount * 100% ) ); // Catch-all | |
} | |
@else if $mode == "sepia" { | |
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'#{$mode}\'><feColorMatrix type=\'matrix\' values=\'#{$svg-value-sepia}\'/></filter></svg>##{$mode}"); | |
filter: #5E2612 $ie-alpha; | |
-webkit-filter: sepia( round( $amount * 100% ) ); // Chrome 19+, Safari 6+, Safari 6+ iOS | |
filter: sepia( round( $amount * 100% ) ); // Catch-all | |
} | |
@else { | |
$toggle:"off"; | |
} | |
} | |
@if $toggle == "off" { | |
@if $svg-type == "saturate" { | |
filter: none; | |
} | |
@else { | |
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'1 0 0 0 0, 0 1 0 0 0, 0 0 1 0 0, 0 0 0 1 0\'/></filter></svg>#grayscale"); | |
} | |
-webkit-filter: grayscale(0%); | |
filter: grayscale(0); | |
} | |
} |
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