From 9326e7459b32b133d54f6899361b21a34d4088b4 Mon Sep 17 00:00:00 2001
From: Moritz Schubotz <wiki@physikerwelt.de>
Date: Mon, 6 Jun 2016 18:03:24 +0200
Subject: [PATCH] Add alt tag for SVG image

We use the checked version of the TeX string and
not the original user input string to ensure that
the layout is the same and no mediawiki specific
macros such as \reals is needed to render the alt
text with a regular LaTeX installation.

Bug: T136915
Change-Id: I40cdf4ec49a4d071773af6943dbe101b8d41ed87
---
 MathMathML.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/MathMathML.php b/MathMathML.php
index 722dfc9..40bc77c 100644
--- a/MathMathML.php
+++ b/MathMathML.php
@@ -403,7 +403,8 @@ class MathMathML extends MathRenderer {
 
 		return Xml::element( 'img', $this->getAttributes( 'span', $attribs, [
 			'aria-hidden' => 'true',
-			'style' => $this->mathoidStyle
+			'style' => $this->mathoidStyle,
+			'alt' => $this->tex
 		] ) );
 	}