fwd postMessage to preview gadget, digest and display

gadget/filebrowser_and_preview.js

@@ -3,6 +3,23 @@
 "use strict";
 (function (document, $) {
 
+  var myIndexOf = function (path, contains) {
+    var len = path.length;
+    var wordLen = contains.length;
+    for(var i = 0; i < len; i++) {
+      var j = 0;
+      for(j = 0; j < wordLen; j++) {
+        if(path[i+j] != contains[j]) {
+            break;
+        }
+      }
+      if(j == wordLen) {
+        return i;
+      }
+    }
+    return -1;
+  };
+
   var getParameter = function(searchString, paramName) {
     var i, val, params = searchString.split("&");
 
@@ -15,10 +32,19 @@
     return null;
   };
 
+  // this is our "interactor", it only knows one other iFrame
+  // so we post to this one!
   var handler = function (event) {
-    console.log(event.data);
-    console.log("hello inside handler");
-    console.log(event);
+    var frames = document.getElementsByTagName("iframe"), frame, i;
+    for (i = 0; i < frames.length; i += 1) {
+      frame = frames[i];
+      if (myIndexOf(
+        event.source.location.pathname,
+        frame.getAttribute("src").split("?")[0]
+      ) < 0) {
+        frame.contentWindow.postMessage(event.data, window.location.href);
+      }
+    }
   };
 
   var mapUrl = function (url) {

gadget/preview.js

@@ -8,7 +8,32 @@
 /*global document, jQuery */
 "use strict";
 (function (document, $) {
-  $(document).ready(function () {
+
+  var ajaxGet = function (src, cb) {
+    $.ajax({
+      method: 'GET',
+      url: src,
+      context: $('body'),
+      error: function (jqXHR, textStatus, errorThrown) {
+        $(this).text(errorThrown);
+      },
+      success: function (value, textStatus, jqXHR) {
+        cb(value, textStatus, jqXHR);
+      }
+    });
+  };
+
+  var handler = function (event) {
+    ajaxGet(event.data, function(value, status, jqXHR) {
+      ajaxGet(value._links.enclosure.href, function(value, status, jqXHR) {
+        if (value === "") {
+          window.document.body.innerHTML = "file not found";
+        } else {
+          window.document.body.innerHTML = value;
+        }
+      });
+    });
+  }
 
   var mapUrl = function (url) {
     var searchString = url.href.split("?")[1],
@@ -50,7 +75,14 @@
     return null;
   };
 
-  mapUrl(window.location);
+  $(document).ready(function () {  
+    // mapUrl(window.location);
+
+    if (window.addEventListener){
+      window.addEventListener("message", handler, false)
+    } else {
+      window.attachEvent("onmessage", handler)
+    }
   });
 
 }(document, jQuery));
\ No newline at end of file