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Retypeset if changes while typesetting #1148

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Apr 2, 2015
Merged

Retypeset if changes while typesetting #1148

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22 changes: 14 additions & 8 deletions test/sample-dynamic-2.html
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@

timeout: null, // store setTimout id
mjRunning: false, // true when MathJax is processing
mjPending: false, // true when a typeset has been queued
oldText: null, // used to check if an update is needed

//
Expand Down Expand Up @@ -67,23 +68,28 @@
//
CreatePreview: function () {
Preview.timeout = null;
if (this.mjRunning) return;
if (this.mjPending) return;
var text = document.getElementById("MathInput").value;
if (text === this.oldtext) return;
this.buffer.innerHTML = this.oldtext = text;
this.mjRunning = true;
MathJax.Hub.Queue(
["Typeset",MathJax.Hub,this.buffer],
["PreviewDone",this]
);
if (this.mjRunning) {
this.mjPending = true;
MathJax.Hub.Queue(["CreatePreview",this]);
} else {
this.buffer.innerHTML = this.oldtext = text;
this.mjRunning = true;
MathJax.Hub.Queue(
["Typeset",MathJax.Hub,this.buffer],
["PreviewDone",this]
);
}
},

//
// Indicate that MathJax is no longer running,
// and swap the buffers to show the results.
//
PreviewDone: function () {
this.mjRunning = false;
this.mjRunning = this.mjPending = false;
this.SwapBuffers();
}

Expand Down