Updates for Timepoint assocation (LT-60) and Conformance Checks (LT-92, LT-93, LT-94)

Packages/viewerbase/lib/helpers/isTouchDevice.js

@@ -0,0 +1,20 @@
+/**
+ * Helper function to determine if the current client devices
+ * is touch-capable. This can be used to modify certain aspects of the UI.
+ *
+ * The check may not work on all devices!
+ *
+ * @returns {boolean} true if the client device is touch-capable, false otherwise
+ */
+isTouchDevice = function() {
+    return (('ontouchstart' in window) ||
+    (navigator.MaxTouchPoints > 0) ||
+    (navigator.msMaxTouchPoints > 0));
+};
+
+/**
+ * Blaze helper for checking if the current device is touch capable
+ *
+ * @returns {boolean} true if the client device is touch-capable, false otherwise
+ */
+UI.registerHelper('isTouchDevice', isTouchDevice);