reveal-js-base-theme/plugin/math/mathjax/unpacked/config/MMLorHTML.js

112 lines
3.7 KiB
JavaScript

/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*************************************************************
*
* MathJax/config/MMLorHTML.js
*
* Chooses between the NativeMML and HTML-CSS output jax depending
* on the capabilities of the browser and configuration settings
* of the page.
*
* This file should be added to the config array when configuring
* MathJax. Note that if you include this, you should NOT include
* an output jax in the jax array (it will be added for you by
* this file).
*
* You can specify the preferred output jax on a global or
* browser-by-browser basis. To specify it globally, use
*
* MathJax.Hub.Config({
* MMLorHTML: {prefer: "MML"} // or "HTML"
* });
*
* To specify on a browser-by-borwser basis, use
*
* MathJax.Hub.Config({
* MMLorHTML: {prefer: {
* MSIE: "MML",
* Firefox: "MML",
* Opera: "HTML",
* other: "HTML"
* }}
* });
*
* ---------------------------------------------------------------------
*
* Copyright (c) 2010-2013 The MathJax Consortium
*
* 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.
*/
(function (HUB,BROWSER) {
var VERSION = "2.3";
var CONFIG = MathJax.Hub.CombineConfig("MMLorHTML",{
prefer: {
MSIE:"MML",
Firefox:"HTML",
Opera:"HTML",
Chrome:"HTML",
Safari:"HTML",
other:"HTML"
}
});
var MINBROWSERVERSION = {
Firefox: 3.0,
Opera: 9.52,
MSIE: 6.0,
Chrome: 0.3,
Safari: 2.0,
Konqueror: 4.0
};
var canUseHTML = (BROWSER.version === "0.0" ||
BROWSER.versionAtLeast(MINBROWSERVERSION[BROWSER]||0.0));
var canUseMML = (BROWSER.isFirefox && BROWSER.versionAtLeast("1.5")) ||
(BROWSER.isMSIE && BROWSER.hasMathPlayer) ||
(BROWSER.isSafari && BROWSER.versionAtLeast("5.0")) ||
(BROWSER.isOpera && BROWSER.versionAtLeast("9.52"));
HUB.Register.StartupHook("End Config",function () {
var prefer = (CONFIG.prefer && typeof(CONFIG.prefer) === "object" ?
CONFIG.prefer[MathJax.Hub.Browser]||CONFIG.prefer.other||"HTML" :
CONFIG.prefer);
if (canUseHTML || canUseMML) {
if (canUseMML && (prefer === "MML" || !canUseHTML)) {
if (MathJax.OutputJax.NativeMML) {MathJax.OutputJax.NativeMML.Register("jax/mml")}
else {HUB.config.jax.unshift("output/NativeMML")}
HUB.Startup.signal.Post("NativeMML output selected");
} else {
if (MathJax.OutputJax["HTML-CSS"]) {MathJax.OutputJax["HTML-CSS"].Register("jax/mml")}
else {HUB.config.jax.unshift("output/HTML-CSS")}
HUB.Startup.signal.Post("HTML-CSS output selected");
}
} else {
HUB.PreProcess.disabled = true;
HUB.prepareScripts.disabled = true;
MathJax.Message.Set(
["MathJaxNotSupported","Your browser does not support MathJax"],
null,4000
);
HUB.Startup.signal.Post("MathJax not supported");
}
});
})(MathJax.Hub,MathJax.Hub.Browser);
MathJax.Ajax.loadComplete("[MathJax]/config/MMLorHTML.js");