only permit maxChildDiffCount when we are not in the top element, related to #67

Author: johanneswilm

diffDOM.js

@@ -437,7 +437,7 @@
                 debug: false,
                 diffcap: 10, // Limit for how many diffs are accepting when debugging. Inactive when debug is false.
                 maxDepth: false, // False or a numeral. If set to a numeral, limits the level of depth that the the diff mechanism looks for differences. If false, goes through the entire tree.
-                maxChildCount: false, // False or a numeral. If set to a numeral, does not try to diff the contents of nodes with more children if there are more than maxChildDiffCount differences among child nodes.
+                maxChildCount: 50, // False or a numeral. If set to a numeral, does not try to diff the contents of nodes with more children if there are more than maxChildDiffCount differences among child nodes.
                 maxChildDiffCount: 3, // Numeral. See maxChildCount.
                 valueDiffing: true, // Whether to take into consideration the values of forms that differ from auto assigned values (when a user fills out a form).
                 // syntax: textDiff: function (node, currentValue, expectedValue, newValue)
@@ -629,7 +629,7 @@
                 ];
             }
 
-            if (this.maxChildCount && t1.childNodes && t2.childNodes && t1.childNodes.length >  this.maxChildCount && t2.childNodes.length > this.maxChildCount) {
+            if (route.length && this.maxChildCount && t1.childNodes && t2.childNodes && t1.childNodes.length >  this.maxChildCount && t2.childNodes.length > this.maxChildCount) {
                 var childNodesLength = t1.childNodes.length < t2.childNodes.length ? t1.childNodes.length : t2.childNodes.length, childDiffCount = 0,  j = 0;
                 while (childDiffCount < this.maxChildDiffCount && j < childNodesLength) {
                     if (!isEqual(t1.childNodes[j], t2.childNodes[j])) {

tests/long-list.html

@@ -34,8 +34,7 @@
     var dd = new diffDOM({
         debug: true,
         diffcap: 1000,
-        valueDiffing: false,
-        maxChildCount: false
+        valueDiffing: false
       }),
       tl = new TraceLogger(dd), elements, first, second, third, fourth, theDiff;