From 670f5809f881c283cfdba3d9363d7b9f974a5cc3 Mon Sep 17 00:00:00 2001
From: "Davide P. Cervone" <dpvc@union.edu>
Date: Wed, 20 Aug 2014 14:49:29 -0400
Subject: [PATCH] Use large chunks and reduce processUpdateTime to get browser
 responsiveness.  Remove the processing messages during output, since it will
 now be slower and the math is showing.

---
 unpacked/extensions/CHTML-preview.js | 30 ++++++++++++++++++++++++----
 1 file changed, 26 insertions(+), 4 deletions(-)

diff --git a/unpacked/extensions/CHTML-preview.js b/unpacked/extensions/CHTML-preview.js
index e0805232e..09d78e477 100644
--- a/unpacked/extensions/CHTML-preview.js
+++ b/unpacked/extensions/CHTML-preview.js
@@ -32,12 +32,14 @@
     version: "1.0",
 
     //
-    //  Configuration for the chinking of the main output
-    //  after the previews have been created
+    //  Configuration for the chunking of the main output
+    //  after the previews have been created, and other configuration.
     //
     config: HUB.CombineConfig("CHTML-preview",{
-      Chunks: {EqnChunk: 5, EqnChunkFactor: 1, EqnChunkDelay: 150},
-      color:"inherit"
+      Chunks: {EqnChunk: 10000, EqnChunkFactor: 1, EqnChunkDelay: 0},
+      color: "inherit",
+      updateTime: 10, updateDelay: 50,
+      messageStyle: "none"
     }),
 
     //
@@ -49,6 +51,26 @@
         SVG: this.config.Chunks,
       });
       MathJax.Ajax.Styles({".MathJax_Preview":{color:this.config.color}});
+      var update, delay, style, done;
+      var config = this.config;
+      HUB.Register.MessageHook("Begin Math Output",function () {
+        if (!done) {
+          update = HUB.processUpdateTime; delay = HUB.processUpdateDelay;
+          style = HUB.config.messageStyle;
+          HUB.processUpdateTime = config.updateTime;
+          HUB.processUpdateDelay = config.updateDelay;
+          HUB.Config({messageStyle: config.messageStyle});
+          MathJax.Message.Clear(0,0);
+        }
+      });
+      HUB.Register.MessageHook("End Math Output",function () {
+        if (!done) {
+          HUB.processUpdateTime = update;
+          HUB.processUpdateDelay = delay;
+          HUB.Config({messageStyle: style});
+          done = true;
+        }
+      });
     },
 
     //