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// @category Button
// Values default to global values (evaluated when the mixins are called)
$v-button-background-color: null !default;
$v-button-bevel-style: null !default;
$v-button-bevel-depth: null !default;
$v-button-gradient-style: null !default;
$v-button-gradient-depth: null !default;
$v-button-shadow-style: null !default;
$v-button-shadow-depth: null !default;
$v-button-border-radius: $v-border-radius !default;
$v-button-unit-size: null !default;
$v-button-font-weight: max(400, $v-font-weight + 100) !default;
$v-button-cursor: pointer !default;
$v-button-hover-style-enabled: $v-hover-styles-enabled !default;
$v-button-border-width: $v-border-width !default;
$v-button-disabled-opacity: $v-disabled-opacity !default;
// The main mixin for Valo buttons
// @mixin v-valo-button
// @param $primary-stylename {String} the primary stylename to use for the output. Defaults to <code>v-button</code>
@mixin v-valo-button ($primary-stylename: v-button) {
.#{$primary-stylename} {
@include v-valo-button-common-properties;
@include v-valo-button-style;
}
}
@mixin v-valo-button-common-properties {
@include v-valo-tappable;
cursor: $v-button-cursor;
font-weight: $v-button-font-weight;
position: relative;
text-align: center;
white-space: nowrap;
// Generated element for :hover, :focus and :active styles
&:after {
content: "";
position: absolute;
top: -$v-button-border-width;
right: -$v-button-border-width;
bottom: -$v-button-border-width;
left: -$v-button-border-width;
border-radius: inherit;
border: inherit;
border-width: 0;
@if $v-animations-enabled {
@include transition(box-shadow 180ms, border 180ms);
}
}
&.v-disabled {
@include opacity($v-button-disabled-opacity);
&:after {
display: none;
}
}
@include v-valo-button-vertical-centering;
}
@mixin v-valo-button-vertical-centering {
// Vertical centering of icon and caption, independent of the height of the button
@include vertical-align-guide($to-align: div, $pseudo-element: before);
// WebKit handles line-heights and vertical-alignments somewhat differently, so we need to adjust
.v-sa &:before {
height: 110%;
}
// Firefox needs a bit of adjusting as well
.v-ff &:before {
height: 105%;
}
// ...and so does IE. Who knew?
.v-ie &:before {
margin-top: 4px;
}
}
@mixin v-valo-button-size ($unit-size, $border-radius) {
height: $unit-size;
$padding-width: ceil($unit-size/2.4);
$padding-width: $padding-width + ceil($border-radius/3);
padding: 0 $padding-width;
.v-icon {
margin: 0 ceil($padding-width/-5);
}
.v-icon + span:not(:empty) {
margin-left: ceil($padding-width/1.5);
}
}
@function v-valo-button-border-color ($bevel-style: $v-bevel-style, $bevel-depth: $v-bevel-depth,
$background-color: $v-button-background-color) {
$background-color: $background-color or $v-app-background-color;
$border-color: if(color-luminance($background-color) < color-luminance($v-app-background-color), $background-color, $v-app-background-color);
$border-color: blend-darken($border-color, scale-color($border-color, $lightness: max(-50%, -$bevel-depth/2)));
$border-color: scale-color($border-color, $saturation: -$bevel-depth/2);
@if contains($bevel-style, shade, true) {
$border-color: $border-color $border-color blend-multiply(transparentize(#000, max(0.8, 1-$bevel-depth/200%)), $border-color);
}
@return $border-color;
}
@mixin v-valo-button-style ($gradient-style: $v-button-gradient-style, $gradient-depth: $v-button-gradient-depth,
$bevel-style: $v-button-bevel-style, $bevel-depth: $v-button-bevel-depth,
$unit-size: $v-button-unit-size, $border-radius: $v-button-border-radius,
$background-color: $v-button-background-color) {
// Set up variable defaults
$background-color: $background-color or $v-app-background-color;
$gradient-style: $gradient-style or $v-gradient-style;
$gradient-depth: $gradient-depth or $v-gradient-depth;
$bevel-style: $bevel-style or $v-bevel-style;
$bevel-depth: $bevel-depth or $v-bevel-depth;
$unit-size: $unit-size or $v-unit-size;
@include v-valo-button-size($unit-size, $border-radius);
border-radius: $border-radius;
border: $v-button-border-width solid;
border-color: v-valo-button-border-color($bevel-style, $bevel-depth, $background-color);
@include v-valo-gradient($background-color, $gradient-style, $gradient-depth);
color: v-valo-font-color($background-color, 0.9);
box-shadow: v-valo-button-box-shadow($background-color, $bevel-style, $bevel-depth, $gradient-style, $gradient-depth);
text-shadow: v-valo-button-text-shadow($background-color, $bevel-depth);
@if $v-button-hover-style-enabled {
&:hover:after {
@include v-valo-button-hover-style($background-color: $background-color);
}
}
&:focus {
outline: none;
&:after {
@include v-valo-button-focus-style($background-color: $background-color);
}
}
&:active:after,
&.v-pressed:after {
@include v-valo-button-active-style($background-color: $background-color);
}
}
@mixin v-valo-button-focus-style ($background-color: $v-app-background-color, $border-fallback: inherit) {
$focus-color: v-valo-focus-color();
@if color-luminance($focus-color) + 50 < color-luminance($background-color) {
border: $v-button-border-width solid $focus-color;
} @else {
border: $border-fallback or v-valo-button-border-color($background-color: $background-color);
}
box-shadow: v-valo-focus-box-shadow($color: $focus-color);
@if $v-animations-enabled {
@include transition(none);
}
}
@mixin v-valo-button-active-style ($background-color: $v-app-background-color) {
$bg: scale-color($background-color, $lightness: -50%, $saturation: saturation($v-app-background-color));
background-color: rgba($bg, .1);
.v-ie8 & {
background-color: $bg;
filter: alpha(opacity=10);
}
}
@mixin v-valo-button-hover-style ($background-color: $v-app-background-color) {
$bg: lighten($background-color, 15%);
background-color: rgba($bg, .1);
border: inherit;
@if $v-animations-enabled {
@include transition(none);
}
.v-ie8 & {
background-color: $bg;
filter: alpha(opacity=20);
}
}
@mixin v-valo-button-borderless-style {
border: none;
box-shadow: none;
background: transparent;
color: inherit;
}
@mixin v-valo-button-icon-align-right-style ($primary-stylename: v-button) {
.#{$primary-stylename}-wrap {
display: inline-block;
}
.v-icon {
float: right;
$padding-width: ceil($v-unit-size/2.4);
margin-left: $padding-width + ceil($padding-width/-5);
+ span:not(:empty) {
margin-left: 0;
}
}
}
@function v-valo-button-box-shadow($background-color, $bevel-style: $v-bevel-style, $bevel-depth: $v-bevel-depth, $gradient-style: $v-gradient-style, $gradient-depth: $v-gradient-depth) {
@return v-valo-bevel($background-color, $bevel-style, $bevel-depth, $gradient-style, $gradient-depth), v-valo-shadow();
}
@function v-valo-button-text-shadow($background-color, $bevel-depth: $v-bevel-depth) {
@if is-dark-color($background-color) {
@return 0 -1px 0 transparentize(darken($background-color, $bevel-depth), 1-($bevel-depth/100%));
} @else {
@return 0 1px 0 transparentize(lighten($background-color, $bevel-depth), 1-($bevel-depth/100%));
}
}
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