From b64a31f1a31469e411945ce4f500fc11797c3406 Mon Sep 17 00:00:00 2001
From: Noah Loomans <noahloomans@gmail.com>
Date: Thu, 22 Dec 2016 12:58:46 +0100
Subject: add feature detect

---
 public/javascripts/featureDetect.js | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 public/javascripts/featureDetect.js

(limited to 'public/javascripts/featureDetect.js')

diff --git a/public/javascripts/featureDetect.js b/public/javascripts/featureDetect.js
new file mode 100644
index 0000000..3a072a1
--- /dev/null
+++ b/public/javascripts/featureDetect.js
@@ -0,0 +1,29 @@
+/* global FLAGS */
+
+const self = {}
+
+self._nodes = {
+  input: document.querySelector('input[type="search"]'),
+  overflowButton: document.querySelector('#overflow-button')
+}
+
+self._shouldCheck = function () {
+  return FLAGS.indexOf('NO_FEATURE_DETECT') === -1
+}
+
+self._redirect = function () {
+  window.location.href = 'http://www.meetingpointmco.nl/Roosters-AL/doc/'
+}
+
+self.check = function () {
+  if (!self._shouldCheck()) return
+
+  window.onerror = self._redirect
+
+  if (self._nodes.input.getClientRects()[0].top !==
+      self._nodes.overflowButton.getClientRects()[0].top) {
+    self._redirect()
+  }
+}
+
+module.exports = self
-- 
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