Latest build deployed.

2025-12-28 17:55:29 +00:00
commit 7e09fad64e
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+/****************************************************
+ *
+ *  mathjaxknowl.js
+ *  
+ *  Implements \knowl{url}{math} macro for MathJax.  Knowls are
+ *  described at
+ *  
+ *    http://www.aimath.org/knowlepedia/
+ *  
+ *  Be sure to change the loadComplete() address to the URL
+ *  of the location of this file on your server. 
+ *  
+ *  You can load it via the config=file parameter on the script
+ *  tag that loads MathJax.js, or by including it in the extensions
+ *  array in your configuration.
+ *  
+ *  Based on an approach developed by Tom Leathrum.  See
+ *  
+ *    http://groups.google.com/group/mathjax-users/browse_thread/thread/d8a8d081b8e63242
+ *  
+ *  for details.
+ */
+
+MathJax.Extension.Knowl = {
+  version: "1.0",
+
+  //
+  //  Reveal or hide a MathJax knowl
+  //
+  Show: function (url,id) {
+    var oid = "MathJax-knowl-output-"+id,
+        uid = "MathJax-kuid-"+id;
+    if ($("#"+oid).length) {
+      $("#"+uid).slideToggle("fast");
+    } else {
+      var the_content = "<div class='knowl-output' id='"+uid+"'>" +
+          "<div class='knowl'>" +
+             "<div class='knowl-content' id='"+oid+"'>" +
+               "loading '"+url+"'" +
+             "</div>" +
+          "</div>" +
+        "</div>";
+
+      var the_parent = $("#MathJax-knowl-"+id).closest("p, article, .displaymath");
+
+      if(the_parent.length == 0) {
+         the_parent = $("#MathJax-knowl-"+id).closest(".MJXc-display").next();
+         if(the_parent.length == 0) {
+            the_parent = $("#MathJax-knowl-"+id).parent().parent().parent().parent();
+         }
+      }
+
+      the_parent.after(the_content);
+
+      $("#"+oid).load(url,function () {
+        MathJax.Hub.Queue(["Typeset",MathJax.Hub,uid]);
+      });
+      $("#"+uid).slideDown("slow");
+    }
+ },
+
+  //
+  //  Get a unique ID for the knowl
+  //
+  id: 0,
+  GetID: function () {return this.id++}
+};
+
+
+MathJax.Callback.Queue(
+  MathJax.Hub.Register.StartupHook("TeX Jax Ready",function () {
+    var TEX = MathJax.InputJax.TeX,
+        TEXDEF = TEX.Definitions,
+        KNOWL = MathJax.Extension.Knowl;
+
+    TEXDEF.macros.knowl = "Knowl";
+
+    TEX.Parse.Augment({
+      //
+      //  Implements \knowl{url}{math}
+      //
+      Knowl: function (name) {
+        var url = this.GetArgument(name), math = this.ParseArg(name);
+        if (math.inferred && math.data.length == 1)
+          {math = math.data[0]} else {delete math.inferred}
+        var id = KNOWL.GetID();
+        this.Push(math.With({
+          "class": "MathJax_knowl",
+          href: "javascript:MathJax.Extension.Knowl.Show('"+url+"','"+id+"')",
+          id: "MathJax-knowl-"+id,
+          // border and padding will only work properly if given explicitly on the element
+          style: "color:blue; border-bottom: 1px dotted #00A; padding-bottom: 1px"
+        }));
+      }
+    });
+  
+  }),
+  MathJax.Hub.Register.StartupHook("onLoad",function () {
+    MathJax.Ajax.Styles({
+      ".MathJax_knowl:hover": {"background-color": "#DDF"}
+    });
+  }),
+  ["Post",MathJax.Hub.Startup.signal,"TeX knowl ready"]
+);
+
+MathJax.Ajax.loadComplete("http://pretextbook.org/js/lib/mathjaxknowl.js");
+MathJax.Ajax.loadComplete("https://pretextbook.org/js/lib/mathjaxknowl.js");
+
+