suzanne.soy/scribble-mathjax
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Have Update() method ask ElementJax to determine if it needs updating (which in turn asks the associated input jax). Make Remove() work for just clearing output (without detaching) if desired.

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Davide P. Cervone 2011-05-01 14:21:01 -04:00
parent 944aed1ac1
commit fa7673e03d
2 changed files with 17 additions and 11 deletions
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2
MathJax.js
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26
unpacked/MathJax.js
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@ -1358,15 +1358,12 @@ MathJax.Hub = {
Process: function (script) {}, Process: function (script) {},
Update: function (script) { Update: function (script) {
var jax = script.MathJax.elementJax; var jax = script.MathJax.elementJax;
// FIXME: Have intputJax determine if things have changed? if (jax && jax.needsUpdate()) {jax.Remove(true); script.MathJax.state = jax.STATE.UPDATE}
if (jax && jax.originalText === (script.text == "" ? script.innerHTML : script.text)) else {script.MathJax.state = jax.STATE.PROCESSED}
{script.MathJax.state = jax.STATE.PROCESSED} else
{MathJax.OutputJax[jax.outputJax].Remove(jax); script.MathJax.state = jax.STATE.UPDATE}
}, },
Reprocess: function (script) { Reprocess: function (script) {
var jax = script.MathJax.elementJax; var jax = script.MathJax.elementJax;
if (jax) if (jax) {jax.Remove(true); script.MathJax.state = jax.STATE.UPDATE}
{MathJax.OutputJax[jax.outputJax].Remove(jax); script.MathJax.state = jax.STATE.UPDATE}
} }
}, },
@ -1856,6 +1853,10 @@ MathJax.Hub.Startup = {
if (jax) {queue.Push(AJAX.Require(jax[0].directory+"/"+this.JAXFILE))} if (jax) {queue.Push(AJAX.Require(jax[0].directory+"/"+this.JAXFILE))}
return queue.Push({}); return queue.Push({});
}, },
needsUpdate: function (jax) {
var script = jax.SourceElement();
return (jax.originalText !== (script.text == "" ? script.innerHTML : script.text));
},
Register: function (mimetype) { Register: function (mimetype) {
if (!HUB.inputJax) {HUB.inputJax = {}} if (!HUB.inputJax) {HUB.inputJax = {}}
HUB.inputJax[mimetype] = this; HUB.inputJax[mimetype] = this;
@ -1917,10 +1918,15 @@ MathJax.Hub.Startup = {
script.MathJax.state = this.STATE.OUTPUT; script.MathJax.state = this.STATE.OUTPUT;
return HUB.Process(script,callback); return HUB.Process(script,callback);
}, },
Remove: function () { Remove: function (keep) {
MathJax.OutputJax[this.outputJax].Remove(this); BASE.OutputJax[this.outputJax].Remove(this);
HUB.signal.Post(["Remove Math",this.inputID]); // wait for this to finish? if (!keep) {
this.Detach(); HUB.signal.Post(["Remove Math",this.inputID]); // wait for this to finish?
this.Detach();
}
},
needsUpdate: function () {
return BASE.InputJax[this.inputJax].needsUpdate(this);
}, },
SourceElement: function () {return document.getElementById(this.inputID)}, SourceElement: function () {return document.getElementById(this.inputID)},