From 51a65e5b525e0951143e467501d8fac842643e82 Mon Sep 17 00:00:00 2001
From: "Davide P. Cervone" <dpvc@union.edu>
Date: Sat, 7 Jan 2012 10:24:26 -0500
Subject: [PATCH] Add HTML-CSS extension to handle tagged equations better when
 there are floating elements (without this, they overlap the floats).  This is
 an extension since it misuses display:table-cell, and I'm not certain of all
 the consequences.

---
 extensions/HTML-CSS/handle-floats.js          | 16 ++++
 unpacked/extensions/HTML-CSS/handle-floats.js | 74 +++++++++++++++++++
 2 files changed, 90 insertions(+)
 create mode 100644 extensions/HTML-CSS/handle-floats.js
 create mode 100644 unpacked/extensions/HTML-CSS/handle-floats.js

diff --git a/extensions/HTML-CSS/handle-floats.js b/extensions/HTML-CSS/handle-floats.js
new file mode 100644
index 000000000..6afa0b5a1
--- /dev/null
+++ b/extensions/HTML-CSS/handle-floats.js
@@ -0,0 +1,16 @@
+/*
+ *  /MathJax/extensions/HTML-CSS/handle-floats.js
+ *  
+ *  Copyright (c) 2010 Design Science, Inc.
+ *
+ *  Part of the MathJax library.
+ *  See http://www.mathjax.org for details.
+ * 
+ *  Licensed under the Apache License, Version 2.0;
+ *  you may not use this file except in compliance with the License.
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+MathJax.Hub.Config({"HTML-CSS":{styles:{".MathJax_Display":{display:"table-cell",padding:"1em 0 ! important",width:(MathJax.Hub.Browser.isMSIE&&(document.documentMode||0)<8?"100%":"1000em")}}}});MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready",function(){var a=MathJax.OutputJax["HTML-CSS"],b=a.Translate;a.Augment({Translate:function(c,f){b.call(this,c,f);if(c.MathJax.elementJax.HTMLCSS.display){var e=c.nextSibling;if(!e||e.className!=="MathJax_MSIE_Separator"){var d=a.Element("span",{className:"MathJax_MSIE_Separator"});c.parentNode.insertBefore(d,e)}}}});MathJax.Hub.Startup.signal.Post("HTML-CSS handle-floats Ready")});MathJax.Ajax.loadComplete("[MathJax]/extensions/HTML-CSS/handle-floats.js");
+
diff --git a/unpacked/extensions/HTML-CSS/handle-floats.js b/unpacked/extensions/HTML-CSS/handle-floats.js
new file mode 100644
index 000000000..bb9ddcab6
--- /dev/null
+++ b/unpacked/extensions/HTML-CSS/handle-floats.js
@@ -0,0 +1,74 @@
+/*************************************************************
+ *
+ *  MathJax/extensions/HTML-CSS/handle-floats.js
+ *
+ *  This extension allows HTML-CSS output to deal with floating elements
+ *  better.  In particular, when there are tags or equation numbers, these
+ *  would overlap floating elements, but with this extension, the width of
+ *  the line should properly correspond to the amount of space remaining.
+ *  
+ *  To load it, include
+ *  
+ *      "HTML-CSS": {
+ *        extensions: ["handle-floats.js"]
+ *      }
+ *  
+ *  in your configuration.
+ *
+ *  ---------------------------------------------------------------------
+ *  
+ *  Copyright (c) 2012 Design Science, Inc.
+ * 
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+//
+//  Make the display DIV be a table-cell
+//  Use padding to get the separation, since table cells don't do margin
+//  Make the width large (it will shrink to fit the remaining room)
+//
+MathJax.Hub.Config({
+  "HTML-CSS": {
+    styles: {
+      ".MathJax_Display": {
+        display: "table-cell",
+        padding: "1em 0 ! important",
+        width: (MathJax.Hub.Browser.isMSIE && (document.documentMode||0) < 8 ? "100%" : "1000em")
+      }
+    }
+  }
+});
+
+//
+//  Two consecutive equations would end up side-by-side, so force a separator
+//  (Needed by IE8, IE9, and Firefox, at least).
+//  
+MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready",function () {
+  var HTMLCSS = MathJax.OutputJax["HTML-CSS"],
+      TRANSLATE = HTMLCSS.Translate;
+  HTMLCSS.Augment({
+    Translate: function (script,state) {
+      TRANSLATE.call(this,script,state);
+      if (script.MathJax.elementJax.HTMLCSS.display) {
+        var next = script.nextSibling;
+        if (!next || next.className !== "MathJax_MSIE_Separator") {
+          var span = HTMLCSS.Element("span",{className:"MathJax_MSIE_Separator"});
+          script.parentNode.insertBefore(span,next);
+        }
+      }
+    }
+  });
+  MathJax.Hub.Startup.signal.Post("HTML-CSS handle-floats Ready");
+});
+
+MathJax.Ajax.loadComplete("[MathJax]/extensions/HTML-CSS/handle-floats.js");