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Handle loading of CommonHTML jax better (do it when we detect it is not present, rather than trying to hook into the input jax require array).

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This commit is contained in:
Davide P. Cervone 2014-11-08 09:29:47 -05:00
parent d128cfbd5d
commit ff6d6935df
1 changed files with 13 additions and 9 deletions
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22
unpacked/extensions/CHTML-preview.js
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@ -39,7 +39,7 @@
//
config: HUB.CombineConfig("CHTML-preview",{
Chunks: {EqnChunk: 10000, EqnChunkFactor: 1, EqnChunkDelay: 0},
color: "inherit",
color: "inherit!important",
updateTime: 10, updateDelay: 10,
messageStyle: "none",
disabled: false
@ -56,6 +56,7 @@
MathJax.Ajax.Styles({".MathJax_Preview":{color:this.config.color}});
var update, delay, style, done, saved;
var config = this.config;
HUB.Register.MessageHook("Begin Math Output",function () {
if (!done && !config.disabled && SETTINGS.CHTMLpreview &&
SETTINGS.renderer !== "CommonHTML") {
@ -97,25 +98,28 @@
try {
data.math.root.toCommonHTML(preview);
} catch (err) {
//
// Load the CommonHTML jax if it is not already loaded
//
if (!data.math.root.toCommonHTML) {
var queue = MathJax.Callback.Queue();
HUB.RestartAfter(queue.Push(
["Require",MathJax.Ajax,"[MathJax]/jax/output/CommonHTML/config.js"],
["Require",MathJax.Ajax,"[MathJax]/jax/output/CommonHTML/jax.js"]
));
}
if (!err.restart) {throw err} // an actual error
return MathJax.Callback.After(["postFilter",this,preview,data],err.restart);
}
},
//
// Hook into the inut jax postFilter to create the previews as
// Hook into the input jax postFilter to create the previews as
// the input jax are processed.
//
Register: function (name) {
HUB.Register.StartupHook(name+" Jax Require",function () {
var jax = MathJax.InputJax[name];
var delay = HUB.config.delayJaxRegistration;
HUB.config.delayJaxRegistration = true;
HUB.Register.StartupHook(name+" Jax Ready",function () {HUB.config.delayJaxRegistration = delay});
jax.require.push(
"[MathJax]/jax/output/CommonHTML/config.js",
"[MathJax]/jax/output/CommonHTML/jax.js"
);
jax.postfilterHooks.Add(["Preview",MathJax.Extension["CHTML-preview"]],50);
});
}