Stackedit/res/extensions/mathJax.js

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JavaScript
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define([
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"utils",
"classes/Extension",
"text!html/mathJaxSettingsBlock.html",
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"mathjax",
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], function(utils, Extension, mathJaxSettingsBlockHTML) {
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var mathJax = new Extension("mathJax", "MathJax", true);
mathJax.settingsBlock = mathJaxSettingsBlockHTML;
mathJax.defaultConfig = {
tex: "{}",
tex2jax: '{ inlineMath: [["$","$"],["\\\\\\\\(","\\\\\\\\)"]], displayMath: [["$$","$$"],["\\\\[","\\\\]"]], processEscapes: true }'
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};
mathJax.onLoadSettings = function() {
utils.setInputValue("#input-mathjax-config-tex", mathJax.config.tex);
utils.setInputValue("#input-mathjax-config-tex2jax", mathJax.config.tex2jax);
};
mathJax.onSaveSettings = function(newConfig, event) {
newConfig.tex = utils.getInputJsValue("#input-mathjax-config-tex", event);
newConfig.tex2jax = utils.getInputJsValue("#input-mathjax-config-tex2jax", event);
};
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mathJax.onReady = function() {
eval("var tex = " + mathJax.config.tex);
eval("var tex2jax = " + mathJax.config.tex2jax);
MathJax.Hub.Config({
"HTML-CSS": {
preferredFont: "TeX",
availableFonts: [
"STIX",
"TeX"
],
linebreaks: {
automatic: true
},
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EqnChunk: 10,
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imageFont: null
},
tex2jax: tex2jax,
TeX: $.extend({
noUndefined: {
attributes: {
mathcolor: "red",
mathbackground: "#FFEEEE",
mathsize: "90%"
}
},
Safe: {
allow: {
URLs: "safe",
classes: "safe",
cssIDs: "safe",
styles: "safe",
fontsize: "all"
}
}
}, tex),
messageStyle: "none"
});
};
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mathJax.onPagedownConfigure = function(editorObject) {
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t = document.getElementById("preview-contents");
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var converter = editorObject.getConverter();
converter.hooks.chain("preConversion", p);
converter.hooks.chain("postConversion", d);
};
var afterRefreshCallback = undefined;
mathJax.onAsyncPreview = function(callback) {
afterRefreshCallback = callback;
j();
};
// From math.stackexchange.com...
function b(a, f, b) {
var c = k.slice(a, f + 1).join("").replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
for (h.Browser.isMSIE && (c = c.replace(/(%[^\n]*)\n/g, "$1<br/>\n")); f > a; )
k[f] = "", f--;
k[a] = "@@" + m.length + "@@";
b && (c = b(c));
m.push(c);
i = o = l = null
}
function p(a) {
i = o = l = null;
m = [];
var f;
/`/.test(a) ? (a = a.replace(/~/g, "~T").replace(/(^|[^\\])(`+)([^\n]*?[^`\n])\2(?!`)/gm, function(a) {
return a.replace(/\$/g, "~D")
}), f = function(a) {
return a.replace(/~([TD])/g,
function(a, c) {
return {T: "~",D: "$"}[c]
})
}) : f = function(a) {
return a
};
k = r(a.replace(/\r\n?/g, "\n"), u);
for (var a = 1, d = k.length; a < d; a += 2) {
var c = k[a];
"@" === c.charAt(0) ? (k[a] = "@@" + m.length + "@@", m.push(c)) : i ? c === o ? n ? l = a : b(i, a, f) : c.match(/\n.*\n/) ? (l && (a = l, b(i, a, f)), i = o = l = null, n = 0) : "{" === c ? n++ : "}" === c && n && n-- : c === s || "$$" === c ? (i = a, o = c, n = 0) : "begin" === c.substr(1, 5) && (i = a, o = "\\end" + c.substr(6), n = 0)
}
l && b(i, l, f);
return f(k.join(""))
}
function d(a) {
a = a.replace(/@@(\d+)@@/g, function(a, b) {
return m[b]
});
m = null;
return a
}
function e() {
q = !1;
h.cancelTypeset = !1;
h.Queue(["Typeset", h, t])
h.Queue(afterRefreshCallback);
}
function j() {
!q && g && (q = !0, h.Cancel(), h.Queue(e))
}
var g = !1, q = !1, t = null, s = "$", k, i, o, l, n, m, h = MathJax.Hub;
h.Queue(function() {
g = !0;
h.processUpdateTime = 50;
h.Config({"HTML-CSS": {EqnChunk: 10,EqnChunkFactor: 1},SVG: {EqnChunk: 10,EqnChunkFactor: 1}})
});
var u = /(\$\$?|\\(?:begin|end)\{[a-z]*\*?\}|\\[\\{}$]|[{}]|(?:\n\s*)+|@@\d+@@)/i, r;
r = 3 === "aba".split(/(b)/).length ? function(a, f) {
return a.split(f)
} : function(a, f) {
var b = [], c;
if (!f.global) {
c = f.toString();
var d = "";
c = c.replace(/^\/(.*)\/([im]*)$/, function(a, c, b) {
d = b;
return c
});
f = RegExp(c, d + "g")
}
for (var e = f.lastIndex = 0; c = f.exec(a); )
b.push(a.substring(e, c.index)), b.push.apply(b, c.slice(1)), e = c.index + c[0].length;
b.push(a.substring(e));
return b
};
(function() {
var b = MathJax.Hub;
if (!b.Cancel) {
b.cancelTypeset = !1;
b.Register.StartupHook("HTML-CSS Jax Config", function() {
var d = MathJax.OutputJax["HTML-CSS"], e = d.Translate;
d.Augment({Translate: function(j, g) {
if (b.cancelTypeset || g.cancelled)
throw Error("MathJax Canceled");
return e.call(d, j, g)
}})
});
b.Register.StartupHook("SVG Jax Config", function() {
var d = MathJax.OutputJax.SVG, e = d.Translate;
d.Augment({Translate: function(j, g) {
if (b.cancelTypeset || g.cancelled)
throw Error("MathJax Canceled");
return e.call(d,
j, g)
}})
});
b.Register.StartupHook("TeX Jax Config", function() {
var d = MathJax.InputJax.TeX, e = d.Translate;
d.Augment({Translate: function(j, g) {
if (b.cancelTypeset || g.cancelled)
throw Error("MathJax Canceled");
return e.call(d, j, g)
}})
});
var p = b.processError;
b.processError = function(d, e, j) {
if ("MathJax Canceled" !== d.message)
return p.call(b, d, e, j);
MathJax.Message.Clear(0, 0);
e.jaxIDs = [];
e.jax = {};
e.scripts = [];
e.i = e.j = 0;
e.cancelled = !0;
return null
};
b.Cancel = function() {
this.cancelTypeset = !0
}
}
})();
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return mathJax;
});