Separate TypesetDone into two routines so that the processing of the results (in particular the PNG production) isn't part of the restart timer, since that can take a while.

Author: dpvc

lib/mj-single.js

@@ -517,11 +517,12 @@ function StartQueue() {
   timer = setTimeout(RestartMathJax,data.timeout);
   HUB.Queue(
     $$("Typeset",HUB),
+    $$(TypesetDone,result),
     $$(GetMML,result),
     $$(GetSpeech,result),
     $$(GetSVG,result),
     $$(GetPNG,result),
-    $$(TypesetDone,result)
+    $$(ReturnResult,result)
   );
 }
 
@@ -562,9 +563,7 @@ function GetState(state) {
 //
 //  When the expression is typeset,
 //    clear the timeout timer, if any,
-//    update the MathJax state,
-//    return the result object, and
-//    do the next queued expression
+//    and update the MathJax state,
 //  
 function TypesetDone(result) {
   if (timer) {clearTimeout(timer); timer = null}
@@ -582,6 +581,13 @@ function TypesetDone(result) {
     state.n = GLYPH.n;
     state.ID = ID;
   }
+}
+
+//
+//  Return the result object, and
+//  do the next queued expression
+//
+function ReturnResult(result) {
   if (errors.length) {result.errors = errors}
   callback(result);
   serverState = STATE.READY;