From 46e3b9a4755c3dea880f6c3aba81d60ee42330ab Mon Sep 17 00:00:00 2001
From: Nicholas Mayne <Jetski5822@gmail.com>
Date: Sun, 31 Aug 2014 18:45:42 +0100
Subject: [PATCH] Adding culture-isrtl to layer filters

---
 .../RuleEngine/CultureRuleProvider.cs              | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/Orchard.Web/Modules/Orchard.Localization/RuleEngine/CultureRuleProvider.cs b/src/Orchard.Web/Modules/Orchard.Localization/RuleEngine/CultureRuleProvider.cs
index d86573380..7f025cb72 100644
--- a/src/Orchard.Web/Modules/Orchard.Localization/RuleEngine/CultureRuleProvider.cs
+++ b/src/Orchard.Web/Modules/Orchard.Localization/RuleEngine/CultureRuleProvider.cs
@@ -23,6 +23,20 @@ namespace Orchard.Localization.RuleEngine {
             if (!String.Equals(ruleContext.FunctionName, "culture-lcid", StringComparison.OrdinalIgnoreCase)) {
                 ProcessCultureId(ruleContext);
             }
+
+            if (!String.Equals(ruleContext.FunctionName, "culture-isrtl", StringComparison.OrdinalIgnoreCase)) {
+                ProcessCurrentCultureIsRtl(ruleContext);
+            }
+        }
+
+        private void ProcessCurrentCultureIsRtl(dynamic ruleContext) {
+            var currentUserCulture = CultureInfo.GetCultureInfo(_workContext.CurrentCulture);
+
+            var isRtl = ((object[]) ruleContext.Arguments)
+                .Cast<bool>()
+                .SingleOrDefault();
+
+            ruleContext.Result = (isRtl == currentUserCulture.TextInfo.IsRightToLeft);
         }
 
         private void ProcessCultureCode(dynamic ruleContext) {