From 86407790d238f74cb4e6858998f467e39d20e846 Mon Sep 17 00:00:00 2001
From: Tobie Langel <tobie.langel@gmail.com>
Date: Thu, 11 Dec 2008 12:07:23 +0100
Subject: [PATCH] Fix issue where certain versions of Safari treat class names
 case-insensitively in Selector/7390 queries. [#390 state:resolved]

---
 CHANGELOG           |  2 ++
 src/dom/selector.js | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/CHANGELOG b/CHANGELOG
index adb377e..fa101e6 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+* Fix issue where certain versions of Safari treat class names case-insensitively in Selector/$$ queries. (Andrew Dupont, kangax, Brice)
+
 * Fix issue where Function#argumentNames returned incorrect results in IE when comments were intermixed with argument names. (Christophe Porteneuve, T.J. Crowder)
 
 * Selector.patterns should be represented as an ordered structure. (ADO, kangax)
diff --git a/src/dom/selector.js b/src/dom/selector.js
index 1561b39..11486c7 100644
--- a/src/dom/selector.js
+++ b/src/dom/selector.js
@@ -38,6 +38,8 @@ var Selector = Class.create({
   
   shouldUseSelectorsAPI: function() {
     if (!Prototype.BrowserFeatures.SelectorsAPI) return false;
+        
+    if (Selector.CASE_INSENSITIVE_CLASS_NAMES) return false;
     
     if (!Selector._div) Selector._div = new Element('div');
 
@@ -180,6 +182,24 @@ var Selector = Class.create({
   }
 });
 
+if (Prototype.BrowserFeatures.SelectorsAPI &&
+ document.compatMode === 'BackCompat') {
+  // Versions of Safari 3 before 3.1.2 treat class names case-insensitively in
+  // quirks mode. If we detect this behavior, we should use a different
+  // approach.
+  Selector.CASE_INSENSITIVE_CLASS_NAMES = (function(){
+    var div = document.createElement('div'),
+     span = document.createElement('span');
+
+    div.id = "prototype_test_id";
+    span.className = 'Test';
+    div.appendChild(span);
+    var isIgnored = (div.querySelector('#prototype_test_id .test') !== null);
+    div = span = null;
+    return isIgnored;
+  })();
+}
+
 Object.extend(Selector, {
   _cache: { },