Added Slides
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+96
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/**
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* A plugin which enables rendering of math equations inside
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* of reveal.js slides. Essentially a thin wrapper for KaTeX.
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*
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* @author Hakim El Hattab
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* @author Gerhard Burger
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*/
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export const KaTeX = () => {
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let deck;
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let defaultOptions = {
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version: 'latest',
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delimiters: [
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{left: '$$', right: '$$', display: true}, // Note: $$ has to come before $
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{left: '$', right: '$', display: false},
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{left: '\\(', right: '\\)', display: false},
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{left: '\\[', right: '\\]', display: true}
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],
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ignoredTags: ['script', 'noscript', 'style', 'textarea', 'pre']
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}
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const loadCss = src => {
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let link = document.createElement('link');
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link.rel = 'stylesheet';
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link.href = src;
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document.head.appendChild(link);
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};
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/**
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* Loads a JavaScript file and returns a Promise for when it is loaded
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* Credits: https://aaronsmith.online/easily-load-an-external-script-using-javascript/
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*/
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const loadScript = src => {
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return new Promise((resolve, reject) => {
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const script = document.createElement('script')
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script.type = 'text/javascript'
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script.onload = resolve
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script.onerror = reject
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script.src = src
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document.head.append(script)
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})
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};
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async function loadScripts(urls) {
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for(const url of urls) {
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await loadScript(url);
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}
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}
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return {
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id: 'katex',
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init: function (reveal) {
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deck = reveal;
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let revealOptions = deck.getConfig().katex || {};
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let options = {...defaultOptions, ...revealOptions};
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const {local, version, extensions, ...katexOptions} = options;
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let baseUrl = options.local || 'https://cdn.jsdelivr.net/npm/katex';
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let versionString = options.local ? '' : '@' + options.version;
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let cssUrl = baseUrl + versionString + '/dist/katex.min.css';
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let katexUrl = baseUrl + versionString + '/dist/katex.min.js';
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let mhchemUrl = baseUrl + versionString + '/dist/contrib/mhchem.min.js'
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let karUrl = baseUrl + versionString + '/dist/contrib/auto-render.min.js';
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let katexScripts = [katexUrl];
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if(options.extensions && options.extensions.includes("mhchem")) {
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katexScripts.push(mhchemUrl);
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}
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katexScripts.push(karUrl);
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const renderMath = () => {
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renderMathInElement(reveal.getSlidesElement(), katexOptions);
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deck.layout();
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}
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loadCss(cssUrl);
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// For some reason dynamically loading with defer attribute doesn't result in the expected behavior, the below code does
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loadScripts(katexScripts).then(() => {
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if( deck.isReady() ) {
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renderMath();
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}
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else {
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deck.on( 'ready', renderMath.bind( this ) );
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}
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});
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}
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}
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};
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@@ -0,0 +1 @@
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o,i=ae(e),a=ce(i.length),c=ue(r,a);if(t&&n!=n){for(;a>c;)if((o=i[c++])!=o)return!0}else for(;a>c;c++)if((t||c in i)&&i[c]===n)return t||c||0;return!t&&-1}},se={includes:fe(!0),indexOf:fe(Line truncated
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@@ -0,0 +1 @@
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!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):(t="undefined"!=typeof globalThis?globalThis:t||self).RevealMath=e()}(this,(function(){"use strict";var t="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{},e=function(t){return t&&t.Math==Math&&t},n=e("object"==typeof globalThis&&globalThis)||e("object"==typeof window&&window)||e("object"==typeof self&&self)||e("object"==typeof t&&t)||function(){return this}()||Function("return this")(),r={},o=function(t){try{return!!t()}catch(t){return!0}},i=!o((function(){return 7!=Object.defineProperty({},1,{get:function(){return 7}})[1]})),a={},c={}.propertyIsEnumerable,u=Object.getOwnPropertyDescriptor,f=u&&!c.call({1:2},1);a.f=f?function(t){var e=u(this,t);return!!e&&e.enumerable}:c;var 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t>0?re(ne(t),9007199254740991):0},ie=ee,ae=Math.max,ce=Math.min,ue=b,fe=oe,se=function(t,e){var n=ie(t);return n<0?ae(n+e,0):ce(n,e)},le=function(t){return funcLine truncated
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@@ -0,0 +1,89 @@
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/**
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* A plugin which enables rendering of math equations inside
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* of reveal.js slides. Essentially a thin wrapper for MathJax.
|
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*
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* @author Hakim El Hattab
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*/
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export const MathJax2 = () => {
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// The reveal.js instance this plugin is attached to
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let deck;
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let defaultOptions = {
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messageStyle: 'none',
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tex2jax: {
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inlineMath: [ [ '$', '$' ], [ '\\(', '\\)' ] ],
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skipTags: [ 'script', 'noscript', 'style', 'textarea', 'pre' ]
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},
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skipStartupTypeset: true
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};
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function loadScript( url, callback ) {
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|
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let head = document.querySelector( 'head' );
|
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let script = document.createElement( 'script' );
|
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script.type = 'text/javascript';
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script.src = url;
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|
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// Wrapper for callback to make sure it only fires once
|
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let finish = () => {
|
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if( typeof callback === 'function' ) {
|
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callback.call();
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callback = null;
|
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}
|
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}
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|
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script.onload = finish;
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||||
|
||||
// IE
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||||
script.onreadystatechange = () => {
|
||||
if ( this.readyState === 'loaded' ) {
|
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finish();
|
||||
}
|
||||
}
|
||||
|
||||
// Normal browsers
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||||
head.appendChild( script );
|
||||
|
||||
}
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||||
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return {
|
||||
id: 'mathjax2',
|
||||
|
||||
init: function( reveal ) {
|
||||
|
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deck = reveal;
|
||||
|
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let revealOptions = deck.getConfig().mathjax2 || deck.getConfig().math || {};
|
||||
|
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let options = { ...defaultOptions, ...revealOptions };
|
||||
let mathjax = options.mathjax || 'https://cdn.jsdelivr.net/npm/mathjax@2/MathJax.js';
|
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let config = options.config || 'TeX-AMS_HTML-full';
|
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let url = mathjax + '?config=' + config;
|
||||
|
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options.tex2jax = { ...defaultOptions.tex2jax, ...revealOptions.tex2jax };
|
||||
|
||||
options.mathjax = options.config = null;
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||||
|
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loadScript( url, function() {
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||||
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MathJax.Hub.Config( options );
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// Typeset followed by an immediate reveal.js layout since
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// the typesetting process could affect slide height
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MathJax.Hub.Queue( [ 'Typeset', MathJax.Hub, deck.getRevealElement() ] );
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MathJax.Hub.Queue( deck.layout );
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||||
// Reprocess equations in slides when they turn visible
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deck.on( 'slidechanged', function( event ) {
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||||
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MathJax.Hub.Queue( [ 'Typeset', MathJax.Hub, event.currentSlide ] );
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||||
|
||||
} );
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||||
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||||
} );
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||||
|
||||
}
|
||||
}
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||||
|
||||
};
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@@ -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 = {...defaultOptions.options, ...revealOptions.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();
|
||||
} );
|
||||
} );
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
};
|
||||
@@ -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
|
||||
} );
|
||||
Reference in new issue
Block a user