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Merge pull request #1148 from jaredwindover/dev_Preview_Patch

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Retypeset if changes while typesetting
This commit is contained in:
Peter Krautzberger 2015-04-02 13:48:15 +02:00
commit 7395bbbb3d
1 changed files with 14 additions and 8 deletions
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10
test/sample-dynamic-2.html
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@ -23,6 +23,7 @@ var Preview = {
timeout: null, // store setTimout id timeout: null, // store setTimout id
mjRunning: false, // true when MathJax is processing 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 oldText: null, // used to check if an update is needed
// //
@ -67,15 +68,20 @@ var Preview = {
// //
CreatePreview: function () { CreatePreview: function () {
Preview.timeout = null; Preview.timeout = null;
if (this.mjRunning) return; if (this.mjPending) return;
var text = document.getElementById("MathInput").value; var text = document.getElementById("MathInput").value;
if (text === this.oldtext) return; if (text === this.oldtext) return;
if (this.mjRunning) {
this.mjPending = true;
MathJax.Hub.Queue(["CreatePreview",this]);
} else {
this.buffer.innerHTML = this.oldtext = text; this.buffer.innerHTML = this.oldtext = text;
this.mjRunning = true; this.mjRunning = true;
MathJax.Hub.Queue( MathJax.Hub.Queue(
["Typeset",MathJax.Hub,this.buffer], ["Typeset",MathJax.Hub,this.buffer],
["PreviewDone",this] ["PreviewDone",this]
); );
}
}, },
// //
@ -83,7 +89,7 @@ var Preview = {
// and swap the buffers to show the results. // and swap the buffers to show the results.
// //
PreviewDone: function () { PreviewDone: function () {
this.mjRunning = false; this.mjRunning = this.mjPending = false;
this.SwapBuffers(); this.SwapBuffers();
} }