From 079e56f1e109a58f89d47edd2a386fb9450dd9ee Mon Sep 17 00:00:00 2001
From: Pete LePage <pete.lepage@pobox.com>
Date: Tue, 23 Jun 2020 16:34:47 -0400
Subject: [PATCH] Use a dimension to note how the user opened squoosh

---
 src/index.ts | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index dfa2fc12..1e82b289 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -13,11 +13,19 @@ if (!('customElements' in self)) {
 }
 
 if (typeof PRERENDER === 'undefined') {
+  // Determine the current display mode.
+  let displayMode = 'browser';
+  const mqStandAlone = '(display-mode: standalone)';
+  if (navigator.standalone || window.matchMedia(mqStandAlone).matches) {
+    displayMode = 'standalone';
+  }
+  // Setup analytics
   window.ga = window.ga || ((...args) => (ga.q = ga.q || []).push(args));
   ga('create', 'UA-128752250-1', 'auto');
   ga('set', 'transport', 'beacon');
+  ga('set', 'dimensionX', displayMode);
   ga('send', 'pageview');
-    // Load the GA script
+  // Load the GA script
   const s = document.createElement('script');
   s.src = 'https://www.google-analytics.com/analytics.js';
   document.head!.appendChild(s);