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- /**
- * A plugin which enables rendering of math equations inside
- * of reveal.js slides. Essentially a thin wrapper for MathJax.
- *
- * @author Hakim El Hattab
- */
- var RevealMath = window.RevealMath || (function(){
- var options = Reveal.getConfig().math || {};
- options.mathjax = options.mathjax || 'https://cdn.mathjax.org/mathjax/latest/MathJax.js';
- options.config = options.config || 'TeX-AMS_HTML-full';
- loadScript( options.mathjax + '?config=' + options.config, function() {
- MathJax.Hub.Config({
- messageStyle: 'none',
- tex2jax: {
- inlineMath: [['$','$'],['\\(','\\)']] ,
- skipTags: ['script','noscript','style','textarea','pre']
- },
- skipStartupTypeset: true
- });
- // Typeset followed by an immediate reveal.js layout since
- // the typesetting process could affect slide height
- MathJax.Hub.Queue( [ 'Typeset', MathJax.Hub ] );
- MathJax.Hub.Queue( Reveal.layout );
- // Reprocess equations in slides when they turn visible
- Reveal.addEventListener( 'slidechanged', function( event ) {
- MathJax.Hub.Queue( [ 'Typeset', MathJax.Hub, event.currentSlide ] );
- } );
- } );
- function loadScript( url, callback ) {
- var head = document.querySelector( 'head' );
- var script = document.createElement( 'script' );
- script.type = 'text/javascript';
- script.src = url;
- // Wrapper for callback to make sure it only fires once
- var finish = function() {
- if( typeof callback === 'function' ) {
- callback.call();
- callback = null;
- }
- }
- script.onload = finish;
- // IE
- script.onreadystatechange = function() {
- if ( this.readyState === 'loaded' ) {
- finish();
- }
- }
- // Normal browsers
- head.appendChild( script );
- }
- })();
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