LT-275: Creating measure flow component common section

Packages/ohif-core/client/helpers/blaze.js

@@ -0,0 +1,26 @@
+import { Template } from 'meteor/templating';
+import { Session } from 'meteor/session';
+import { ReactiveVar } from 'meteor/reactive-var';
+
+/**
+ * Global Blaze UI helpers to work with Blaze
+ */
+
+// Return the current template instance
+Template.registerHelper('instance', () => {
+    return Template.instance();
+});
+
+// Return the session value for the given key
+Template.registerHelper('session', key => {
+    return Session.get(key);
+});
+
+// Return the value for given parameter regardless if it's reactive or not
+Template.registerHelper('reactive', parameter => {
+    if (parameter instanceof ReactiveVar) {
+        return parameter.get();
+    }
+
+    return parameter;
+});