/**
 * Common LESS mixin library for MediaWiki
 *
 * By default the folder containing this file is included in $wgResourceLoaderLESSImportPaths,
 * which makes this file importable by all less files via '@import "mediawiki.mixins";'.
 *
 * The mixins included below are considered a public interface for MediaWiki extensions.
 * The signatures of parametrized mixins should be kept as stable as possible.
 *
 * See <http://lesscss.org/#-mixins> for more information about how to write mixins.
 */

.background-image(@url) when (embeddable(@url)) {
	background-image: embed(@url);
	background-image: url(@url)!ie;
}

.background-image(@url) when not (embeddable(@url)) {
	background-image: url(@url);
}

/* Note gzip compression means that it is okay to embed twice */
.background-image-svg(@svg, @fallback) {
	background-image: url(@fallback);
	/* SVG support using a transparent gradient to guarantee cross-browser
	 * compatibility (browsers able to understand gradient syntax support also SVG) */
	/* @embed */ background-image: -webkit-linear-gradient(transparent, transparent), url(@svg);
	/* @embed */ background-image: linear-gradient(transparent, transparent), url(@svg);
}

/* Caution: Does not support localisable images */
.list-style-image(@url) when (embeddable(@url)) {
	list-style-image: embed(@url);
	list-style-image: url(@url)!ie;
}

.list-style-image(@url) when not (embeddable(@url)) {
	list-style-image: url(@url);
}

.transition(@string) {
	-webkit-transition: @string;
	-moz-transition: @string;
	-o-transition: @string;
	transition: @string;
}