Added logic for not using getElementsByClassName in different failure states. Fixes...

[jquery.git] / src / selector.js

diff --git a/src/selector.js b/src/selector.js
index 5425d94..9fb674e 100644 (file)
--- a/src/selector.js
+++ b/src/selector.js
@@ -741,12 +741,25 @@ if ( document.querySelectorAll ) (function(){
        Sizzle.matches = oldSizzle.matches;
 })();
 
-if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) {
+if ( document.getElementsByClassName && document.documentElement.getElementsByClassName ) (function(){
+       var div = document.createElement("div");
+       div.innerHTML = "<div class='test e'></div><div class='test'></div>";
+
+       // Opera can't find a second classname (in 9.6)
+       if ( div.getElementsByClassName("e").length === 0 )
+               return;
+
+       // Safari caches class attributes, doesn't catch changes (in 3.2)
+       div.lastChild.className = "e";
+
+       if ( div.getElementsByClassName("e").length === 1 )
+               return;
+
        Expr.order.splice(1, 0, "CLASS");
        Expr.find.CLASS = function(match, context) {
                return context.getElementsByClassName(match[1]);
        };
-}
+})();
 
 function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) {
        for ( var i = 0, l = checkSet.length; i < l; i++ ) {