// Vendor Prefixes
//
// All vendor mixins are deprecated as of v3.2.0 due to the introduction of
// Autoprefixer in our Gruntfile. They have been removed in v4.
// - Animations
// - Backface visibility
// - Box shadow
// - Box sizing
// - Content columns
// - Hyphens
// - Placeholder text
// - Transformations
// - Transitions
// - User Select
// Animations
@mixin animation($str) {
    -webkit-animation: #{$str};
    -moz-animation: #{$str};
    -ms-animation: #{$str};
    -o-animation: #{$str};
    animation: #{$str};
}

@mixin animation-name($name) {
    -webkit-animation-name: $name;
    animation-name: $name;
}

@mixin animation-duration($duration) {
    -webkit-animation-duration: $duration;
    animation-duration: $duration;
}

@mixin animation-timing-function($timing-function) {
    -webkit-animation-timing-function: $timing-function;
    animation-timing-function: $timing-function;
}

@mixin animation-delay($delay) {
    -webkit-animation-delay: $delay;
    animation-delay: $delay;
}

@mixin animation-iteration-count($iteration-count) {
    -webkit-animation-iteration-count: $iteration-count;
    animation-iteration-count: $iteration-count;
}

@mixin animation-direction($direction) {
    -webkit-animation-direction: $direction;
    animation-direction: $direction;
}

@mixin animation-fill-mode($fill-mode) {
    -webkit-animation-fill-mode: $fill-mode;
    animation-fill-mode: $fill-mode;
}

// Backface visibility
// Prevent browsers from flickering when using CSS 3D transforms.
// Default value is `visible`, but can be changed to `hidden`
@mixin backface-visibility($visibility) {
    -webkit-backface-visibility: $visibility;
    -moz-backface-visibility: $visibility;
    backface-visibility: $visibility;
}

// Drop shadows
//
// Note: Deprecated `.box-shadow()` as of v3.1.0 since all of Bootstrap's
// supported browsers that have box shadow capabilities now support it.
@mixin box-shadow($shadow...) {
    -webkit-box-shadow: $shadow; // iOS <4.3 & Android <4.1
    box-shadow: $shadow;
}

// Box sizing
@mixin box-sizing($boxmodel) {
    -webkit-box-sizing: $boxmodel;
    -moz-box-sizing: $boxmodel;
    box-sizing: $boxmodel;
}

// CSS3 Content Columns
@mixin content-columns($column-count, $column-gap: $grid-gutter-width) {
    -webkit-column-count: $column-count;
    -moz-column-count: $column-count;
    column-count: $column-count;
    -webkit-column-gap: $column-gap;
    -moz-column-gap: $column-gap;
    column-gap: $column-gap;
}

// Optional hyphenation
@mixin hyphens($mode: auto) {
    word-wrap: break-word;
    -webkit-hyphens: $mode;
    -moz-hyphens: $mode;
    -ms-hyphens: $mode; // IE10+
    -o-hyphens: $mode;
    hyphens: $mode;
}

// Placeholder text
@mixin optional-at-root($sel) {
    @at-root #{if(not &, $sel, selector-append(&, $sel))} {
        @content;
    }
}

@mixin placeholder {
    @include optional-at-root('::-webkit-input-placeholder') {
        @content;
    }
    @include optional-at-root(':-moz-placeholder') {
        @content;
    }
    @include optional-at-root('::-moz-placeholder') {
        @content;
    }
    @include optional-at-root(':-ms-input-placeholder') {
        @content;
    }
}

// Transformations
@mixin scale($ratio...) {
    -webkit-transform: scale($ratio);
    -ms-transform: scale($ratio); // IE9 only
    -o-transform: scale($ratio);
    transform: scale($ratio);
}

@mixin scaleX($ratio) {
    -webkit-transform: scaleX($ratio);
    -ms-transform: scaleX($ratio); // IE9 only
    -o-transform: scaleX($ratio);
    transform: scaleX($ratio);
}

@mixin scaleY($ratio) {
    -webkit-transform: scaleY($ratio);
    -ms-transform: scaleY($ratio); // IE9 only
    -o-transform: scaleY($ratio);
    transform: scaleY($ratio);
}

@mixin skew($x, $y) {
    -webkit-transform: skewX($x) skewY($y);
    -ms-transform: skewX($x) skewY($y); // IE9+
    -o-transform: skewX($x) skewY($y);
    transform: skewX($x) skewY($y);
}

@mixin translate($x, $y) {
    -webkit-transform: translate($x, $y);
    -ms-transform: translate($x, $y); // IE9 only
    -o-transform: translate($x, $y);
    transform: translate($x, $y);
}

@mixin translateY($y) {
    -webkit-transform: translateY($y);
    -ms-transform: translateY($y); // IE9 only
    -o-transform: translateY($y);
    transform: translateY($y);
}

@mixin translateX($x) {
    -webkit-transform: translateX($x);
    -ms-transform: translateX($x); // IE9 only
    -o-transform: translateX($x);
    transform: translateX($x);
}

@mixin translate3d($x, $y, $z) {
    -webkit-transform: translate3d($x, $y, $z);
    transform: translate3d($x, $y, $z);
}

@mixin rotate($degrees) {
    -webkit-transform: rotate($degrees);
    -ms-transform: rotate($degrees); // IE9 only
    -o-transform: rotate($degrees);
    transform: rotate($degrees);
}

@mixin rotateX($degrees) {
    -webkit-transform: rotateX($degrees);
    -ms-transform: rotateX($degrees); // IE9 only
    -o-transform: rotateX($degrees);
    transform: rotateX($degrees);
}

@mixin rotateY($degrees) {
    -webkit-transform: rotateY($degrees);
    -ms-transform: rotateY($degrees); // IE9 only
    -o-transform: rotateY($degrees);
    transform: rotateY($degrees);
}

@mixin perspective($perspective) {
    -webkit-perspective: $perspective;
    -moz-perspective: $perspective;
    perspective: $perspective;
}

@mixin perspective-origin($perspective) {
    -webkit-perspective-origin: $perspective;
    -moz-perspective-origin: $perspective;
    perspective-origin: $perspective;
}

@mixin transform-origin($origin) {
    -webkit-transform-origin: $origin;
    -moz-transform-origin: $origin;
    -ms-transform-origin: $origin; // IE9 only
    transform-origin: $origin;
}

// Transitions
@mixin transition($transition...) {
    -webkit-transition: $transition;
    -o-transition: $transition;
    transition: $transition;
}

@mixin transition-property($transition-property...) {
    -webkit-transition-property: $transition-property;
    transition-property: $transition-property;
}

@mixin transition-delay($transition-delay) {
    -webkit-transition-delay: $transition-delay;
    transition-delay: $transition-delay;
}

@mixin transition-duration($transition-duration...) {
    -webkit-transition-duration: $transition-duration;
    transition-duration: $transition-duration;
}

@mixin transition-timing-function($timing-function) {
    -webkit-transition-timing-function: $timing-function;
    transition-timing-function: $timing-function;
}

@mixin transition-transform($transition...) {
    -webkit-transition: -webkit-transform $transition;
    -moz-transition: -moz-transform $transition;
    -o-transition: -o-transform $transition;
    transition: transform $transition;
}

// User select
// For selecting text on the page
@mixin user-select($select) {
    -webkit-user-select: $select;
    -moz-user-select: $select;
    -ms-user-select: $select; // IE10+
    user-select: $select;
}

@mixin keyframes($name) {
    @-webkit-keyframes #{$name} {
        @content;
    }
    @keyframes #{$name} {
        @content;
    }
}