mediawiki-extensions-Math/modules/ext.math.mathjax.enabler.js

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/**
* From https://en.wikipedia.org/wiki/User:Nageh/mathJax.js
*/
/*global mathJax:true, MathJax:true */
( function ( mw, $ ) {
if ( typeof mathJax === 'undefined' ) {
mathJax = {};
}
mathJax.version = '0.2';
mathJax.loaded = false;
mathJax.locale = mw.config.get('wgUserLanguage');
// See http://docs.mathjax.org/en/latest/options/index.html
mathJax.config = $.extend( true, {
root: mw.config.get('wgExtensionAssetsPath') + '/Math/modules/MathJax/unpacked',
'v1.0-compatible': false,
menuSettings: {
zoom: 'Click'
},
'HTML-CSS': {
imageFont: null,
availableFonts: ['TeX'],
mtextFontInherit: true
},
MathMenu: {
showLocale: false
},
jax: ['input/TeX','input/MathML','output/NativeMML','output/HTML-CSS']
}, mathJax.config );
/**
* @param {string} relative path to a MathJax file
* @return {string} MediaWiki module containing the file
*/
mathJax.getModuleNameFromFile = function (file) {
var regexp, module;
// These modules are loaded at startup and thus don't need to be specified:
// - ext.math.mathjax.mathjax in mathJax.Load
// - ext.math.mathjax.localization in mathJax.Init
// - ext.math.mathjax.jax.config in MathJax.Hub.Startup.Jax
// - ext.math.mathjax.extensions in MathJax.Hub.Startup.Extensions
//
module = 'ext.math.mathjax.';
regexp = file.match(/(.*)\/jax\.js/);
if ( regexp ) {
// These are jax.js files of input, element or output modules:
// - ext.math.mathjax.jax.input.MathML
// - ext.math.mathjax.jax.input.TeX
// - ext.math.mathjax.jax.output.HTML-CSS
// - ext.math.mathjax.jax.output.NativeMML
// - ext.math.mathjax.jax.output.HTML-CSS
// - ext.math.mathjax.jax.output.SVG
return module + regexp[1].replace(/\//g,'.');
}
if ( file.match(/jax\/element\/mml\/optable/) ) {
return module + 'jax.element.mml.optable';
}
regexp = file.match(/jax\/output\/(HTML-CSS|SVG)/);
if ( regexp ) {
module += 'jax.output.' + regexp[1] + '.';
if ( file.match(/autoload/) ) {
return module + 'autoload';
}
if ( file.match(/fonts\/TeX\/fontdata/) ) {
return module + 'fonts.TeX.fontdata';
}
if ( file.match(/fonts\/TeX\/.*\/.*\/Main\.js/) ) {
return module + 'fonts.TeX.MainJS';
}
if ( file.match(/fonts\/TeX\/Main/) ) {
return module + 'fonts.TeX.Main';
}
if ( file.match(/fonts\/TeX\/AMS/) ) {
return module + 'fonts.TeX.AMS';
}
if ( file.match(/fonts\/TeX/) ) {
return module + 'fonts.TeX.Extra';
}
}
mw.log( 'MathJax resource not handled by MediaWiki: ' + file );
return null;
};
/**
* Configure MathJax, preload some files and replace MathJax's resource loader
* by our own resource loader.
*/
mathJax.Init = function () {
// Configure MathJax
MathJax.Hub.Config( mathJax.config );
MathJax.OutputJax.fontDir = mw.config.get('wgExtensionAssetsPath') + '/Math/modules/MathJax/fonts';
// Redefine MathJax.Hub.Startup.Jax
MathJax.Hub.Startup.Jax = function () {
var config, jax, i, k, name, queue, callback;
// Save the order of the output jax since they are loading asynchronously
config = MathJax.Hub.config;
jax = MathJax.Hub.outputJax;
for ( i = 0, k = 0; i < config.jax.length; i++ ) {
name = config.jax[i].substr(7);
if ( config.jax[i].substr(0,7) === 'output/' && jax.order[name] === null ) {
jax.order[name] = k;
k++;
}
}
queue = MathJax.Callback.Queue();
callback = MathJax.Callback({});
return queue.Push(
['Post', MathJax.Hub.Startup.signal, 'Begin Jax'],
['using', mw.loader, 'ext.math.mathjax.jax.config', callback],
callback,
['Post', MathJax.Hub.Startup.signal, 'End Jax']
);
};
// Redefine MathJax.Hub.Startup.Extensions
MathJax.Hub.Startup.Extensions = function () {
var queue, callback;
queue = MathJax.Callback.Queue();
callback = MathJax.Callback({});
return queue.Push(
['Post', MathJax.Hub.Startup.signal, 'Begin Extensions'],
['using', mw.loader, 'ext.math.mathjax.extensions', callback],
callback,
['Post', MathJax.Hub.Startup.signal, 'End Extensions']
);
};
// Redefine MathJax.Ajax.Load
MathJax.Ajax.MathJaxLoad = MathJax.Ajax.Load;
MathJax.Ajax.Load = function (file, callback) {
var type, i, module;
callback = MathJax.Callback(callback);
if ( file instanceof Object ) {
for ( i in file ) {
if ( file.hasOwnProperty(i) ) {
type = i.toUpperCase();
file = file[i];
}
}
} else {
type = file.split(/\./).pop().toUpperCase();
}
file = MathJax.Ajax.fileURL(file);
if ( MathJax.Ajax.loading[file] ) {
MathJax.Ajax.addHook(file, callback);
} else {
if ( MathJax.Ajax.loader[type] ) {
module = mathJax.getModuleNameFromFile(file.substring(MathJax.Hub.config.root.length + 1));
if ( module ) {
// Use MediaWiki's resource loader.
MathJax.Ajax.loading[file] = {
callback: callback,
timeout: -1,
status: this.STATUS.OK,
script: null
};
// Add this to the structure above after it is created to prevent
// recursion when loading the initial localization file (before
// loading message is available)
MathJax.Ajax.loading[file].message = MathJax.Message.File(file);
mw.loader.load(module);
} else {
// Fallback to MathJax's own loader.
callback = MathJax.Ajax.MathJaxLoad(file, callback);
}
} else {
throw new Error('Can\'t load files of type ' + type);
}
}
return callback;
};
// Register the final action after MathJax processing: hide
// SVG/PNG preview if thas was not done before and show MathJax's output.
MathJax.Hub.Startup.signal.MessageHook( 'End', function () {
mw.loader.load('ext.math.mathml');
});
// Set MathJax's locale and load the localization data.
MathJax.Localization.resetLocale(mathJax.locale);
mathJax.locale = MathJax.Localization.locale;
MathJax.Hub.config.menuSettings.locale = mathJax.locale;
mw.loader.using( 'ext.math.mathjax.localization', function () {
MathJax.Hub.Configured();
} );
};
/**
* Renders all Math TeX inside the given elements.
* @param {function} callback to be executed after text elements have rendered [optional]
*/
$.fn.renderTex = function ( callback ) {
var elem = this.find( '.tex' ).parent().toArray();
if ( !$.isFunction( callback ) ) {
callback = $.noop;
}
function render () {
MathJax.Hub.Queue( ['Typeset', MathJax.Hub, elem, callback] );
}
mw.loader.using( 'ext.math.mathjax.mathjax', function () {
if ( MathJax.isReady ) {
render();
} else {
MathJax.Hub.Startup.signal.MessageHook( 'End', render );
}
} );
return this;
};
mathJax.Load = function () {
if ( this.loaded ) {
return true;
}
// create the global MathJax variable to hook into MathJax startup
MathJax = {
delayStartupUntil: 'configured',
AuthorInit: mathJax.Init
};
// load MathJax.js
mw.loader.load('ext.math.mathjax.mathjax');
this.loaded = true;
return false;
};
$( document ).ready( function () {
mathJax.Load();
} );
}( mediaWiki, jQuery ) );