mediawiki-extensions-Math/modules/MathJax/extensions/TeX/mathchoice.js
Brion Vibber a36b0e04d8 Initial experimental import of MathJax source into Math extension as a client-side rendering supplement to the PNG rendering.
* Pulled in MathJax 1.1 (minus the 112 megabytes of PNG "fonts")
* Pulled in some of <https://en.wikipedia.org/wiki/User:Nageh/mathJax> bits for initialization

This doesn't currently override PNG images, but does replace the text-form if you configure it.
2011-12-06 01:17:35 +00:00

68 lines
2.2 KiB
JavaScript

/*************************************************************
*
* MathJax/extensions/TeX/mathchoice.js
*
* Implements the \mathchoice macro (rarely used)
*
* ---------------------------------------------------------------------
*
* Copyright (c) 2009 Design Science, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
var VERSION = "1.1";
var MML = MathJax.ElementJax.mml;
var TEX = MathJax.InputJax.TeX;
var TEXDEF = TEX.Definitions;
TEXDEF.macros.mathchoice = 'MathChoice';
TEX.Parse.Augment({
MathChoice: function (name) {
var D = this.ParseArg(name),
T = this.ParseArg(name),
S = this.ParseArg(name),
SS = this.ParseArg(name);
this.Push(MML.TeXmathchoice(D,T,S,SS));
}
});
MML.TeXmathchoice = MML.mbase.Subclass({
type: "TeXmathchoice",
choice: function () {
var values = this.getValues("displaystyle","scriptlevel");
if (values.scriptlevel > 0) {return Math.min(3,values.scriptlevel + 1)}
return (values.displaystyle ? 0 : 1);
},
setTeXclass: function (prev) {return this.Core().setTeXclass(prev)},
isSpacelike: function () {return this.Core().isSpacelike()},
isEmbellished: function () {return this.Core().isEmbellished()},
Core: function () {return this.data[this.choice()]},
toHTML: function (span) {
span = this.HTMLcreateSpan(span);
span.bbox = this.Core().toHTML(span).bbox;
return span;
}
});
MathJax.Hub.Startup.signal.Post("TeX mathchoice Ready");
});
MathJax.Ajax.loadComplete("[MathJax]/extensions/TeX/mathchoice.js");