view-renderer is now a class and a factory to avoid creating renderer…

… objects over and over again. removing viewId argument that is not really relevant for this abstraction.

lib/app/autoload/view-renderer.common.js

@@ -11,19 +11,30 @@
 
 YUI.add('mojito-view-renderer', function(Y) {
 
+
+    var cache = {};
+
+
     /*
      * Mojito's view renderer abstraction. Will plugin in the specified view
-     * plugin to do the rendering, depending on the 'type' specified.
+     * plugin to do the rendering, depending on the 'type' specified. This Class
+     * can also be used as a factory to avoid creating renderer objects, and to
+     * do so, you just need to call `Y.mojito.ViewRenderer('hb', {});` and it will
+     * return the cached engine instead of creating a facade for it.
      * @class ViewRenderer
-     * @namespace Y.mojit
+     * @namespace Y.mojito
      * @constructor
      * @param {String} type view engine addon type to use
-     * @param {String} viewId
-     * @param {Object} options
+     * @param {Object} options View engines configuration.
      */
-    function Renderer(type, viewId, options) {
+    function Renderer(type, options) {
         type = type || 'hb';
-        this._renderer = new (Y.mojito.addons.viewEngines[type])(viewId, options);
+        if (!cache[type]) {
+            this._renderer = cache[type] = new (Y.mojito.addons.viewEngines[type])(options);
+        } else {
+            this._renderer = cache[type];
+        }
+        return cache[type];
     }
 
 
@@ -44,6 +55,7 @@ YUI.add('mojito-view-renderer', function(Y) {
         render: function(data, mojitType, tmpl, adapter, meta, more) {
             this._renderer.render(data, mojitType, tmpl, adapter, meta, more);
         }
+
     };
 
     Y.namespace('mojito').ViewRenderer = Renderer;