first version of mathjax plugin #531

11 years ago · 1748a29ff3
2 changed files with 105 additions and 0 deletions
--- a/examples/math.html
+++ b/examples/math.html
@ -0,0 +1,68 @@
+<!doctype html>
+<html lang="en">
+
+	<head>
+		<meta charset="utf-8">
+
+		<title>reveal.js - The HTML Presentation Framework</title>
+
+		<meta name="description" content="A framework for easily creating beautiful presentations using HTML">
+		<meta name="author" content="Hakim El Hattab">
+
+		<meta name="apple-mobile-web-app-capable" content="yes" />
+		<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
+
+		<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+
+		<link rel="stylesheet" href="../css/reveal.min.css">
+		<link rel="stylesheet" href="../css/theme/default.css" id="theme">
+
+		<!-- For syntax highlighting -->
+		<link rel="stylesheet" href="../lib/css/zenburn.css">
+
+		<!--[if lt IE 9]>
+		<script src="lib/js/html5shiv.js"></script>
+		<![endif]-->
+	</head>
+
+	<body>
+
+		<div class="reveal">
+
+			<div class="slides">
+
+				<section>
+					<h1>Reveal.js Math Plugin</h1>
+				</section>
+
+				<section>
+					\[\begin{aligned}
+					\dot{x} &amp; = \sigma(y-x) \\
+					\dot{y} &amp; = \rho x - y - xz \\
+					\dot{z} &amp; = -\beta z + xy
+					\end{aligned} \]
+				</section>
+
+			</div>
+
+		</div>
+
+		<script src="../lib/js/head.min.js"></script>
+		<script src="../js/reveal.min.js"></script>
+
+		<script>
+
+			Reveal.initialize({
+				dependencies: [
+					{ src: '../lib/js/classList.js', condition: function() { return !document.body.classList; } },
+					{ src: '../plugin/markdown/marked.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
+					{ src: '../plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
+					{ src: '../plugin/highlight/highlight.js', async: true, callback: function() { hljs.initHighlightingOnLoad(); } },
+					{ src: '../plugin/math/math.js', async: true }
+				]
+			});
+
+		</script>
+
+	</body>
+</html>
--- a/plugin/math/math.js
+++ b/plugin/math/math.js
@ -0,0 +1,37 @@
+/**
+ * A plugin which enables rendering of math equations inside
+ * of reveal.js slides. Essentially a thin wrapper for MathJax.
+ *
+ * @author Hakim El Hattab
+ */
+(function(){
+
+	var head = document.querySelector( 'head' );
+	var script = document.createElement( 'script' );
+	script.type = 'text/javascript';
+	script.src = 'http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_SVG-full';
+
+	// Detect when the script has loaded
+	script.onload = onScriptLoad;
+	script.onreadystatechange = function() {
+		if ( this.readyState === 'loaded' ) {
+			onScriptLoad.call();
+		}
+	}
+
+	head.appendChild( script );
+
+	function onScriptLoad() {
+
+		MathJax.Hub.Config({
+			messageStyle: 'none',
+			tex2jax: { inlineMath: [['$','$'],['\\(','\\)']] }
+		});
+
+		Reveal.addEventListener( 'slidechanged', function( event ) {
+			MathJax.Hub.Rerender();
+		} );
+
+	}
+
+})();