Steve's patch to make findController work in ShadowDOM context: it's …

…no longer generalized, but at least it does what it's supposed to in polyfill, the generic notion of delegate-to-node-with-controller-property will need championing separately

src/g-component.html

@@ -372,7 +372,7 @@
           this[inMethod].apply(this, inArgs);
         }.bind(this), 0);
       };
-
+         
       // decorate HTMLElementElement with toolkit API
 
       HTMLElementElement.prototype.component = function(inUber) {
@@ -469,17 +469,18 @@
       // newer experimental event handler
 
       var findController = function(inNode) {
-        // find the nearest *containing* controller
-        var n = inNode.parentNode;
-        while (n) {
-          if (n.controller) {
-            return n.controller;
+        // find the shadow root that contains inNode
+        var n = inNode.changeling || inNode;
+        while (n.parentNode && n.tagName !== 'SHADOW-ROOT') {
+          n = n.parentNode;
+          if (n.changeling) {
+            n = n.changeling;
           }
-          n = n.parentNode || n.host;
         }
+        return n.host.controller;
       };
 
-      _ = function(inHandlerName) {
+      var _ = function(inHandlerName) {
         var controller = findController(event.currentTarget);
         //console.log(inHandler, owner, event);
         if (controller && controller[inHandlerName]) {