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make plugins work with multiple presentations on same page

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This commit is contained in:
Hakim El Hattab
2020-04-23 10:54:48 +02:00
parent 210fbb7646
commit b92d16f48d
9 changed files with 626 additions and 561 deletions
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49
plugin/math/math.js
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@ -4,14 +4,12 @@
*
* @author Hakim El Hattab
*/
let Plugin = (function(){
const Plugin = () => {
var options = Reveal.getConfig().math || {};
var mathjax = options.mathjax || 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js';
var config = options.config || 'TeX-AMS_HTML-full';
var url = mathjax + '?config=' + config;
// The reveal.js instance this plugin is attached to
let deck;
var defaultOptions = {
let defaultOptions = {
messageStyle: 'none',
tex2jax: {
inlineMath: [ [ '$', '$' ], [ '\\(', '\\)' ] ],
@ -20,25 +18,15 @@ let Plugin = (function(){
skipStartupTypeset: true
};
function defaults( options, defaultOptions ) {
for ( var i in defaultOptions ) {
if ( !options.hasOwnProperty( i ) ) {
options[i] = defaultOptions[i];
}
}
}
function loadScript( url, callback ) {
var head = document.querySelector( 'head' );
var script = document.createElement( 'script' );
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
var finish = function() {
let finish = () => {
if( typeof callback === 'function' ) {
callback.call();
callback = null;
@ -48,7 +36,7 @@ let Plugin = (function(){
script.onload = finish;
// IE
script.onreadystatechange = function() {
script.onreadystatechange = () => {
if ( this.readyState === 'loaded' ) {
finish();
}
@ -62,10 +50,19 @@ let Plugin = (function(){
return {
id: 'math',
init: function( deck ) {
init: function( reveal ) {
deck = reveal;
let revealOptions = deck.getConfig().math || {};
let options = { ...defaultOptions, ...revealOptions };
let mathjax = options.mathjax || 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.0/MathJax.js';
let config = options.config || 'TeX-AMS_HTML-full';
let url = mathjax + '?config=' + config;
options.tex2jax = { ...defaultOptions.tex2jax, ...revealOptions.tex2jax };
defaults( options, defaultOptions );
defaults( options.tex2jax, defaultOptions.tex2jax );
options.mathjax = options.config = null;
loadScript( url, function() {
@ -74,7 +71,7 @@ let Plugin = (function(){
// 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( [ 'Typeset', MathJax.Hub, deck.getRevealElement() ] );
MathJax.Hub.Queue( deck.layout );
// Reprocess equations in slides when they turn visible
@ -89,6 +86,6 @@ let Plugin = (function(){
}
}
})();
};
export default () => Plugin;
export default Plugin;