numix-gtk-theme/gtk-3.0/scss/_functions.scss

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$modules: () !default;
@mixin exports($name) {
@if (not index($modules, $name)) {
$modules: append($modules, $name) !global;
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@content;
}
}
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@function alpha($color, $amount) {
@if type-of($color) == "color" {
@return fade-out($color, (1 - $amount));
} @else {
@return unquote("alpha(#{$color},#{$amount})");
}
}
@function shade($color, $amount) {
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@if type-of($color) == "color" {
@if ($amount > 1) {
@return lighten($color, ($amount - 1) * lightness($color))
} @else {
@return darken($color, (1 - $amount) * lightness($color))
}
} @else {
@return unquote("shade(#{$color},#{$amount})");
}
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}
@function mix($color1, $color2, $amount) {
@return unquote("mix(#{$color1},#{$color2},#{$amount})");
}
@function border_normal($color) {
@return shade($color, $contrast);
}
@function border_focus($color) {
@return shade($color, ($contrast - .05));
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}
@function border_active($color) {
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@return shade($color, ($contrast - .1));
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}
@function border_insensitive($color) {
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@return shade($color, ($contrast + .05));
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}
@mixin linear-gradient($color, $direction: to bottom) {
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@if $gradient == 0 {
background-color: $color;
background-image: none;
} @else {
$amount: $gradient / 2;
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background-color: $color;
background-image: linear-gradient($direction,
shade($color, (1 + $amount)),
shade($color, (1 - $amount))
);
}
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}
@mixin border($color) {
border-color: border_normal($color);
&:focus, &:hover { border-color: border_focus($color); }
&:active, &:active:hover,
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&:active:focus, &:active:hover:focus,
&:checked, &:checked:hover,
&:checked:focus, &:checked:hover:focus { border-color: border_active($color); }
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&:insensitive { border-color: border_insensitive($color); }
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&:active:insensitive, &:checked:insensitive { border-color: border_normal($color); }
}