Bug 1840315 – added telemetry to the splash screen data fetching

app/metrics.yaml

@@ -637,6 +637,27 @@ events:
       tags:
         - Search
 
+splash_screen:
+  first_launch_extended:
+    type: event
+    description: |
+      The splash screen was shown for an extended period of time, providing more time
+      to download marketing and experiment data.
+    extra_keys:
+      data_fetched:
+        type: boolean
+        description: |
+          If the splash screen was closed due to data being fetched or due to the time running out.
+    bugs:
+      - https://bugzilla.mozilla.org/show_bug.cgi?id=1840315
+    data_reviews:
+      - https://github.com/mozilla-mobile/firefox-android/pull/2616
+    data_sensitivity:
+      - technical
+    notification_emails:
+      - android-probes@mozilla.com
+    expires: 126
+
 onboarding:
   syn_cfr_shown:
     type: event

app/src/main/java/org/mozilla/fenix/HomeActivity.kt

@@ -84,6 +84,7 @@ import mozilla.telemetry.glean.private.NoExtras
 import org.mozilla.experiments.nimbus.initializeTooling
 import org.mozilla.fenix.GleanMetrics.Events
 import org.mozilla.fenix.GleanMetrics.Metrics
+import org.mozilla.fenix.GleanMetrics.SplashScreen
 import org.mozilla.fenix.GleanMetrics.StartOnHome
 import org.mozilla.fenix.addons.AddonDetailsFragmentDirections
 import org.mozilla.fenix.addons.AddonPermissionsDetailsFragmentDirections
@@ -433,7 +434,13 @@ open class HomeActivity : LocaleAwareAppCompatActivity(), NavHostActivity {
             splashScreen.setKeepOnScreenCondition {
                 val dataFetched = components.settings.utmParamsKnown &&
                     components.settings.nimbusExperimentsFetched
-                !maxDurationReached && !dataFetched
+                val keepOnScreen = !maxDurationReached && !dataFetched
+                if (!keepOnScreen) {
+                    SplashScreen.firstLaunchExtended.record(
+                        SplashScreen.FirstLaunchExtendedExtra(dataFetched = dataFetched),
+                    )
+                }
+                keepOnScreen
             }
             MainScope().launch {
                 delay(timeMillis = delay)