suzanne.soy/scribble-mathjax
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Add a check if defaultEm is zero, and retry after a delay if it is. WebKit seems to have this happen sometimes when web fonts are used for the page (though hard to reproduce). Resolves issue #576.

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This commit is contained in:
Davide P. Cervone 2014-02-21 16:21:09 -05:00
parent 2c5ecf6303
commit 2de09d8121
1 changed files with 17 additions and 0 deletions
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17
unpacked/jax/output/HTML-CSS/jax.js
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@ -450,6 +450,23 @@
//
InitializeHTML: function () {
this.PreloadWebFonts();
this.getDefaultExEm();
//
// If the defaultEm size is zero, it might be that a web font hasn't
// arrived yet, so try to wait for it, but don't wait too long.
//
if (this.defaultEm) return;
var ready = MathJax.Callback();
AJAX.timer.start(AJAX,function (check) {
if (check.time(ready)) {HUB.signal.Post("HTML-CSS Jax - no default em size"); return}
HTMLCSS.getDefaultExEm();
if (HTMLCSS.defaultEm) {ready()} else {setTimeout(check,check.delay)}
},this.defaultEmDelay,this.defaultEmTimeout);
return ready;
},
defaultEmDelay: 100, // initial delay when checking for defaultEm
defaultEmTimeout: 1000, // when to stop looking for defaultEm
getDefaultExEm: function () {
//
// Get the default sizes (need styles in place to do this)
//