suzanne.soy/scribble-mathjax
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Change the .MathJax_Processing frame to also contain the span used in getScales().

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Also change the call arguments to getScales() from "div,span" to "span,span".
Together these provide a significant performance boost on Webkit browsers.
This commit is contained in:
Sean Hogan 2010-12-09 13:40:17 +11:00
parent 7df8b036f4
commit 960e9a0eda
1 changed files with 10 additions and 7 deletions
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17
unpacked/jax/output/HTML-CSS/jax.js
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@ -369,7 +369,7 @@
var prev = script.previousSibling;
if (prev && String(prev.className).match(/^MathJax(_MathML|_Display)?$/))
{prev.parentNode.removeChild(prev)}
var math = script.MathJax.elementJax.root, span, div;
var math = script.MathJax.elementJax.root, span, div, frame;
span = div = this.Element("span",{
className:"MathJax", oncontextmenu:this.ContextMenu, onmousedown: this.Mousedown,
onmouseover:this.Mouseover, onclick:this.Click, ondblclick:this.DblClick
@ -380,17 +380,20 @@
}
// (screen readers don't know about role="math" yet, so use "textbox" instead)
div.setAttribute("role","textbox"); div.setAttribute("aria-readonly","true");
script.parentNode.insertBefore(div,script); var isHidden;
try {this.getScales(div,span); isHidden = (this.em === 0 || String(this.em) === "NaN")} catch (err) {isHidden = true}
if (isHidden) {this.hiddenDiv.appendChild(div); this.getScales(div,span)}
frame = this.Element("div",{className:"MathJax_Processing"});
frame.appendChild(div);
script.parentNode.insertBefore(frame,script); var isHidden;
try {this.getScales(span,span); isHidden = (this.em === 0 || String(this.em) === "NaN")} catch (err) {isHidden = true}
if (isHidden) {this.hiddenDiv.appendChild(frame); this.getScales(span,span)}
this.initImg(span);
this.initHTML(math,span);
math.setTeXclass();
try {math.toHTML(span,div)} catch (err) {
if (err.restart) {div.parentNode.removeChild(div)}
if (err.restart) {frame.parentNode.removeChild(frame);}
throw err;
}
if (isHidden) {script.parentNode.insertBefore(div,script)}
if (isHidden) {script.parentNode.insertBefore(frame,script);}
frame.parentNode.replaceChild(div,frame);
},
/*
@ -2014,7 +2017,7 @@
MML.math.Augment({
toHTML: function (span,node) {
var alttext = this.Get("alttext"); if (alttext) {node.setAttribute("aria-label",alttext)}
var nobr = HTMLCSS.addElement(span,"nobr",{className:"MathJax_Processing"});
var nobr = HTMLCSS.addElement(span,"nobr");
span = this.HTMLcreateSpan(nobr);
var stack = HTMLCSS.createStack(span), box = HTMLCSS.createBox(stack), math;
// Move font-size from outer span to stack to avoid line separation