Implemented templates feature

components/templatesFeature.js

@@ -0,0 +1,41 @@
+(function(app) {
+
+    function Template(html) {
+        this.html = html;
+    }
+
+    Template.prototype.render = function (model) {
+        return app.get('html').element(this.html, model);
+    };
+
+    app.templates = [];
+    app.template = function (key) {
+        var tpl = this.templates[key];
+        if(tpl == null) {
+            throw  new Error(key + ' template is not found');
+        }
+        return tpl;
+    }
+
+    app.run(function() {
+        readTemplates(app.rootViewElement);
+    })
+
+    function readTemplates(containerEl) {
+        var els = containerEl.querySelectorAll('[data-template]');
+        var store = app.templates;
+
+        Array.prototype.forEach.call(els, function(element) {
+            var key = element.getAttribute('data-template');
+
+            if(store[key] instanceof Template) {
+                console.warn(key + ' templates already registered');
+                return;
+            }
+
+            store[key] = new Template(element.innerHTML);
+        });
+    }
+
+
+})(window.app);