resources/src/mediawiki.less/mediawiki.mixins.less

   1 // Common LESS mixin library for MediaWiki
   2 //
   3 // By default the folder containing this file is included in $wgResourceLoaderLESSImportPaths,
   4 // which makes this file importable by all less files via '@import "mediawiki.mixins";'.
   5 //
   6 // The mixins included below are considered a public interface for MediaWiki extensions.
   7 // The signatures of parametrized mixins should be kept as stable as possible.
   8 //
   9 // See <http://lesscss.org/#-mixins> for more information about how to write mixins.
  10
  11 .background-image(@url) {
  12         background-image: e('/* @embed */') url(@url);
  13 }
  14
  15 .background-size(@width, @height) {
  16         // Vendor prefix for certain older opera browsers e.g. nintendo ds
  17         -o-background-size: @width @height;
  18         // Vendor prefix is added to support Android 2
  19         -webkit-background-size: @width @height;
  20         background-size: @width @height;
  21 }
  22
  23
  24 .vertical-gradient(@startColor: gray, @endColor: white, @startPos: 0, @endPos: 100%) {
  25         background-color: @endColor;
  26         background-image: -moz-linear-gradient( top, @startColor @startPos, @endColor @endPos ); // Firefox 3.6+
  27         background-image: -webkit-gradient( linear, left top, left bottom, color-stop( @startPos, @startColor ), color-stop( @endPos, @endColor ) ); // Safari 4+, Chrome 2+
  28         background-image: -webkit-linear-gradient( top, @startColor @startPos, @endColor @endPos ); // Safari 5.1+, Chrome 10+
  29         background-image: linear-gradient( @startColor @startPos, @endColor @endPos ); // Standard
  30 }
  31
  32 // SVG support using a transparent gradient to guarantee cross-browser
  33 // compatibility (browsers able to understand gradient syntax support also SVG).
  34 // http://pauginer.tumblr.com/post/36614680636/invisible-gradient-technique
  35 //
  36 // We use gzip compression, which means that it is okay to embed twice.
  37 //
  38 // We do not embed the fallback image on the assumption that the gain for old browsers
  39 // is not worth the harm done to modern ones.
  40 .background-image-svg(@svg, @fallback) {
  41         background-image: url(@fallback);
  42         background-image: -webkit-linear-gradient(transparent, transparent), e('/* @embed */') url(@svg);
  43         background-image: linear-gradient(transparent, transparent), e('/* @embed */') url(@svg);
  44         // Do not serve SVG to Opera 12, bad rendering with border-radius or background-size (T87504)
  45         background-image: -o-linear-gradient(transparent, transparent), url(@fallback);
  46 }
  47
  48 .list-style-image(@url) {
  49         list-style-image: e('/* @embed */') url(@url);
  50 }
  51
  52 .list-style-image-svg(@svg, @fallback) {
  53         list-style-image: e('/* @embed */') url(@svg);
  54         /* Fallback to PNG bullet for IE 8 and below using CSS hack */
  55         list-style-image: e('/* @embed */') url(@fallback) e('\9');
  56 }
  57
  58 .transition(@value) {
  59         -webkit-transition: @value; // Safari 3.1-6.0, iOS 3.2-6.1, Android 2.1-4.3
  60         -moz-transition: @value; // Firefox 4-15
  61         -o-transition: @value; // Opera 10.5-12.0
  62         transition: @value; // Chrome 26+, Firefox 16+, IE 10+, Safari 6.1+, Opera 12.1+, iOS 7+, Android 4.4+
  63 }
  64
  65 .box-sizing(@value) {
  66         -webkit-box-sizing: @value; // Safari 3.1-5.0, iOS 3.2-4.3, Android 2.1-3.0
  67         -moz-box-sizing: @value; // Firefox 4-28,
  68         box-sizing: @value; // Chrome 10+, Firefox 29+, IE 8+, Safari 5.1+, Opera 10+, iOS 5+, Android 4+
  69 }
  70
  71 .box-shadow(@value) {
  72         -webkit-box-shadow: @value; // Safari 3.1-5.0, iOS 3.2-4.3, Android 2.1-3.0
  73         box-shadow: @value; // Chrome 10+, Firefox 4+, IE 9+, Safari 5.1+, Opera 11+, iOS 5+, Android 4+
  74 }
  75
  76 .column-count(@value) {
  77         -webkit-column-count: @value;
  78         -moz-column-count: @value;
  79         column-count: @value;
  80 }
  81
  82 .column-width(@value) {
  83         -webkit-column-width: @value;// Chrome Any, Safari 3+, Opera 11.1+
  84         -moz-column-width: @value;// Firefox 1.5+
  85         column-width: @value;// IE 10+
  86 }
  87
  88 .column-break-inside-avoid() {
  89         -webkit-column-break-inside: avoid; // Chrome Any, Safari 3+, Opera 11.1+
  90         page-break-inside: avoid; // Firefox 1.5+
  91         break-inside: avoid-column; // IE 10+
  92 }