added simple postMessage example

gadget/filebrowser.js

@@ -61,6 +61,7 @@
 
   $(document).ready(function () {
     mapUrl(window.location);
+    window.top.postMessage({"type":"foo", "bar":"hello"}, window.location);
   });
 
 }(document, jQuery));

gadget/filebrowser_and_preview.js

@@ -15,6 +15,11 @@
     return null;
   };
 
+  var handler = function (event) {
+    console.log("hello inside handler");
+    console.log(event);
+  };
+
   var mapUrl = function (url) {
     var searchString = url.href.split("?")[1],
       fileToDisplay;
@@ -50,6 +55,12 @@
 
   $(document).ready(function () {
     mapUrl(window.location);
+
+    if (window.addEventListener){
+      window.addEventListener("message", handler, false)
+    } else {
+      window.attachEvent("onmessage", handler)
+    }
   });
 
 }(document, jQuery));

gadget/preview.js

@@ -10,11 +10,6 @@
 (function (document, $) {
   $(document).ready(function () {
 
-    localStorage.setItem("foo", JSON.stringify("bar"));
-    localStorage.setItem("bar", JSON.stringify("baz"));
-    sessionStorage.setItem("cous", JSON.stringify("cous"));
-    sessionStorage.setItem("deux", JSON.stringify("pommes"));
-
     var mapUrl = function (url) {
       var searchString = url.href.split("?")[1],
         fileToDisplay;