diff options
Diffstat (limited to 'static/presentations/2021-11-13/garage/plugin/math')
6 files changed, 279 insertions, 0 deletions
diff --git a/static/presentations/2021-11-13/garage/plugin/math/katex.js b/static/presentations/2021-11-13/garage/plugin/math/katex.js new file mode 100755 index 0000000..a8b47c4 --- /dev/null +++ b/static/presentations/2021-11-13/garage/plugin/math/katex.js @@ -0,0 +1,96 @@ +/** + * A plugin which enables rendering of math equations inside + * of reveal.js slides. Essentially a thin wrapper for KaTeX. + * + * @author Hakim El Hattab + * @author Gerhard Burger + */ +export const KaTeX = () => { + let deck; + + let defaultOptions = { + version: 'latest', + delimiters: [ + {left: '$$', right: '$$', display: true}, // Note: $$ has to come before $ + {left: '$', right: '$', display: false}, + {left: '\\(', right: '\\)', display: false}, + {left: '\\[', right: '\\]', display: true} + ], + ignoredTags: ['script', 'noscript', 'style', 'textarea', 'pre'] + } + + const loadCss = src => { + let link = document.createElement('link'); + link.rel = 'stylesheet'; + link.href = src; + document.head.appendChild(link); + }; + + /** + * Loads a JavaScript file and returns a Promise for when it is loaded + * Credits: https://aaronsmith.online/easily-load-an-external-script-using-javascript/ + */ + const loadScript = src => { + return new Promise((resolve, reject) => { + const script = document.createElement('script') + script.type = 'text/javascript' + script.onload = resolve + script.onerror = reject + script.src = src + document.head.append(script) + }) + }; + + async function loadScripts(urls) { + for(const url of urls) { + await loadScript(url); + } + } + + return { + id: 'katex', + + init: function (reveal) { + + deck = reveal; + + let revealOptions = deck.getConfig().katex || {}; + + let options = {...defaultOptions, ...revealOptions}; + const {local, version, extensions, ...katexOptions} = options; + + let baseUrl = options.local || 'https://cdn.jsdelivr.net/npm/katex'; + let versionString = options.local ? '' : '@' + options.version; + + let cssUrl = baseUrl + versionString + '/dist/katex.min.css'; + let katexUrl = baseUrl + versionString + '/dist/katex.min.js'; + let mhchemUrl = baseUrl + versionString + '/dist/contrib/mhchem.min.js' + let karUrl = baseUrl + versionString + '/dist/contrib/auto-render.min.js'; + + let katexScripts = [katexUrl]; + if(options.extensions && options.extensions.includes("mhchem")) { + katexScripts.push(mhchemUrl); + } + katexScripts.push(karUrl); + + const renderMath = () => { + renderMathInElement(reveal.getSlidesElement(), katexOptions); + deck.layout(); + } + + loadCss(cssUrl); + + // For some reason dynamically loading with defer attribute doesn't result in the expected behavior, the below code does + loadScripts(katexScripts).then(() => { + if( deck.isReady() ) { + renderMath(); + } + else { + deck.on( 'ready', renderMath.bind( this ) ); + } + }); + + } + } + +}; diff --git a/static/presentations/2021-11-13/garage/plugin/math/math.esm.js 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c=ln(a,["local","version","extensions"]),u=a.local||"https://cdn.jsdelivr.net/npm/katex",f=a.local?"":"@"+a.version,s=u+f+"/dist/katex.min.css",l=u+f+"/dist/contrib/mhchem.min.js",p=u+f+"/dist/contrib/auto-render.min.js",h=[u+f+"/dist/katex.min.js"];a.extensions&&a.extensions.includes("mhchem")&&h.push(l),h.push(p);var d,v,y=function(){renderMathInElement(n.getSlidesElement(),c),t.layout()};d=s,(v=document.createElement("link")).rel="stylesheet",v.href=d,document.head.appendChild(v),function(t){return r.apply(this,arguments)}(h).then((function(){t.isReady()?y():t.on("ready",y.bind(o))}))}}},MathJax2:va,MathJax3:function(){var t={tex:{inlineMath:[["$","$"],["\\(","\\)"]]},options:{skipHtmlTags:["script","noscript","style","textarea","pre"]},startup:{ready:function(){MathJax.startup.defaultReady(),MathJax.startup.promise.then((function(){Reveal.layout()}))}}};return{id:"mathjax3",init:function(e){var n=e.getConfig().mathjax3||{},r=cn(cn({},t),n);r.tex=cn(cn({},t.tex),n.tex),r.options=cn(cn({},r.options),t.options),r.startup=cn(cn({},t.startup),n.startup);var o=r.mathjax||"https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js";r.mathjax=null,window.MathJax=r,function(t,e){var n=document.createElement("script");n.type="text/javascript",n.id="MathJax-script",n.src=t,n.async=!0,n.onload=function(){"function"==typeof e&&(e.call(),e=null)},document.head.appendChild(n)}(o,(function(){Reveal.addEventListener("slidechanged",(function(t){MathJax.typeset()}))}))}}}})})); diff --git a/static/presentations/2021-11-13/garage/plugin/math/mathjax2.js b/static/presentations/2021-11-13/garage/plugin/math/mathjax2.js new file mode 100644 index 0000000..daebe7e --- /dev/null +++ b/static/presentations/2021-11-13/garage/plugin/math/mathjax2.js @@ -0,0 +1,89 @@ +/** + * A plugin which enables rendering of math equations inside + * of reveal.js slides. Essentially a thin wrapper for MathJax. + * + * @author Hakim El Hattab + */ +export const MathJax2 = () => { + + // The reveal.js instance this plugin is attached to + let deck; + + let defaultOptions = { + messageStyle: 'none', + tex2jax: { + inlineMath: [ [ '$', '$' ], [ '\\(', '\\)' ] ], + skipTags: [ 'script', 'noscript', 'style', 'textarea', 'pre' ] + }, + skipStartupTypeset: true + }; + + function loadScript( url, callback ) { + + let head = document.querySelector( 'head' ); + let script = document.createElement( 'script' ); + script.type = 'text/javascript'; + script.src = url; + + // Wrapper for callback to make sure it only fires once + let finish = () => { + if( typeof callback === 'function' ) { + callback.call(); + callback = null; + } + } + + script.onload = finish; + + // IE + script.onreadystatechange = () => { + if ( this.readyState === 'loaded' ) { + finish(); + } + } + + // Normal browsers + head.appendChild( script ); + + } + + return { + id: 'mathjax2', + + init: function( reveal ) { + + deck = reveal; + + let revealOptions = deck.getConfig().mathjax2 || deck.getConfig().math || {}; + + let options = { ...defaultOptions, ...revealOptions }; + let mathjax = options.mathjax || 'https://cdn.jsdelivr.net/npm/mathjax@2/MathJax.js'; + let config = options.config || 'TeX-AMS_HTML-full'; + let url = mathjax + '?config=' + config; + + options.tex2jax = { ...defaultOptions.tex2jax, ...revealOptions.tex2jax }; + + options.mathjax = options.config = null; + + loadScript( url, function() { + + MathJax.Hub.Config( options ); + + // Typeset followed by an immediate reveal.js layout since + // the typesetting process could affect slide height + MathJax.Hub.Queue( [ 'Typeset', MathJax.Hub, deck.getRevealElement() ] ); + MathJax.Hub.Queue( deck.layout ); + + // Reprocess equations in slides when they turn visible + deck.on( 'slidechanged', function( event ) { + + MathJax.Hub.Queue( [ 'Typeset', MathJax.Hub, event.currentSlide ] ); + + } ); + + } ); + + } + } + +}; diff --git a/static/presentations/2021-11-13/garage/plugin/math/mathjax3.js b/static/presentations/2021-11-13/garage/plugin/math/mathjax3.js new file mode 100644 index 0000000..38eb4ef --- /dev/null +++ b/static/presentations/2021-11-13/garage/plugin/math/mathjax3.js @@ -0,0 +1,77 @@ +/** + * A plugin which enables rendering of math equations inside + * of reveal.js slides. Essentially a thin wrapper for MathJax 3 + * + * @author Hakim El Hattab + * @author Gerhard Burger + */ +export const MathJax3 = () => { + + // The reveal.js instance this plugin is attached to + let deck; + + let defaultOptions = { + tex: { + inlineMath: [ [ '$', '$' ], [ '\\(', '\\)' ] ] + }, + options: { + skipHtmlTags: [ 'script', 'noscript', 'style', 'textarea', 'pre' ] + }, + startup: { + ready: () => { + MathJax.startup.defaultReady(); + MathJax.startup.promise.then(() => { + Reveal.layout(); + }); + } + } + }; + + function loadScript( url, callback ) { + + let script = document.createElement( 'script' ); + script.type = "text/javascript" + script.id = "MathJax-script" + script.src = url; + script.async = true + + // Wrapper for callback to make sure it only fires once + script.onload = () => { + if (typeof callback === 'function') { + callback.call(); + callback = null; + } + }; + + document.head.appendChild( script ); + + } + + return { + id: 'mathjax3', + init: function(reveal) { + + deck = reveal; + + let revealOptions = deck.getConfig().mathjax3 || {}; + let options = {...defaultOptions, ...revealOptions}; + options.tex = {...defaultOptions.tex, ...revealOptions.tex} + options.options = {...options.options, ...defaultOptions.options} + options.startup = {...defaultOptions.startup, ...revealOptions.startup} + + let url = options.mathjax || 'https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-mml-chtml.js'; + options.mathjax = null; + + window.MathJax = options; + + loadScript( url, function() { + // Reprocess equations in slides when they turn visible + Reveal.addEventListener( 'slidechanged', function( event ) { + MathJax.typeset(); + } ); + } ); + + } + } + +}; diff --git a/static/presentations/2021-11-13/garage/plugin/math/plugin.js b/static/presentations/2021-11-13/garage/plugin/math/plugin.js new file mode 100644 index 0000000..a92ccfb --- /dev/null +++ b/static/presentations/2021-11-13/garage/plugin/math/plugin.js @@ -0,0 +1,15 @@ +import {KaTeX} from "./katex"; +import {MathJax2} from "./mathjax2"; +import {MathJax3} from "./mathjax3"; + +const defaultTypesetter = MathJax2; + +/*! + * This plugin is a wrapper for the MathJax2, + * MathJax3 and KaTeX typesetter plugins. + */ +export default Plugin = Object.assign( defaultTypesetter(), { + KaTeX, + MathJax2, + MathJax3 +} );
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