Creating header package and dropdown component

Packages/ohif-core/client/ui/dropdown/dropdown.js

@@ -0,0 +1,29 @@
+import { Template } from 'meteor/templating';
+import { Blaze } from 'meteor/blaze';
+import { OHIF } from 'meteor/ohif:core';
+
+OHIF.ui.showDropdown = (items=[], options={}) => {
+    // Prepare the method to destroy the view
+    let view;
+    const destroyView = () => Blaze.remove(view);
+    const templateData = {
+        items,
+        options,
+        destroyView
+    };
+
+    // Render the dialog with the given template and data
+    const parentElement = options.parentElement || document.body;
+    view = Blaze.renderWithData(Template.dropdownForm, templateData, parentElement);
+};
+
+Meteor.startup(() => {
+    OHIF.ui.showDropdown([{
+        text: 'test 1',
+        action: () => console.warn('test1Clicked'),
+        separatorAfter: true
+    }, {
+        text: 'test 2',
+        action: () => console.warn('test2Clicked')
+    }]);
+});