From c417c45e23f93466c40391f50a74550189493bdb Mon Sep 17 00:00:00 2001
From: Artem Khodyush <greenkaa@gmail.com>
Date: Wed, 8 Oct 2014 03:45:21 -0700
Subject: [PATCH] fix core-activate event detail: data and item are null when
 tapping element generated with template nested inside list item

reported in https://groups.google.com/d/msg/polymer-dev/ngUkehsrnUc/DrvPNFibruIJ
---
 core-list.html | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/core-list.html b/core-list.html
index d97d05b..c133020 100644
--- a/core-list.html
+++ b/core-list.html
@@ -373,7 +373,14 @@
           return;
         }
 
-        var model = n.templateInstance && n.templateInstance.model;
+        // in case the tap was on some nested template or element instance,
+        // find an instance generated with this particular element template
+        // using the fact that they all are siblings of this.template
+        while (n && n.parentNode !== this.template.parentNode) {
+            n = n.host ? n.host : n.parentNode;
+        }
+
+        var model = n && n.templateInstance && n.templateInstance.model;
         if (model) {
           var vi = model.index, pi = model.physicalIndex;
           var data = this.data[vi], item = this._physicalItems[pi];