for #11830 added new metric for collecting startup method from all startup phases (#11940)

* for #11830 added new metric for collecting startup method

move all source startup telemetry into its own logic and added an UNKOWN state

* switched back to onNewIntent solution

* renamed the metric

app/metrics.yaml

@@ -8,6 +8,32 @@ no_lint:
   - CATEGORY_GENERIC
 
 events:
+  app_received_intent:
+    type: event
+    description: |
+      The system received an Intent for the HomeActivity. An intent
+      is received an external entity wants to the app to display
+      content. Intents can be received when the app is closed – at
+      which point the app will be opened – or when the app is
+      already opened – at which point the already open app will make
+      changes such as loading a url. This can be used loosely as a
+      heuristic for when the user requested to open the app. The
+      HomeActivity encompasses the home screen and browser screen but
+      may include other screens. This differs from the app_opened
+      probe because it measures all startups, not just cold startup.
+    extra_keys:
+      source:
+        description: |
+          The method used to open Fenix. Possible values are `app_icon`,
+          `custom_tab`, `link` or `unknown`
+    bugs:
+      - https://github.com/mozilla-mobile/fenix/issues/11830
+    data_reviews:
+      - https://github.com/mozilla-mobile/fenix/pull/11940/
+    notification_emails:
+      - esmyth@mozilla.com
+      - perf-android-fe@mozilla.com
+    expires: "2020-12-01"
   app_opened:
     type: event
     description: |

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

@@ -174,10 +174,14 @@ open class HomeActivity : LocaleAwareAppCompatActivity() {
             lifecycle.addObserver(BreadcrumbsRecorder(components.analytics.crashReporter,
                 navHost.navController, ::getBreadcrumbMessage))
 
-            intent
-                ?.toSafeIntent()
+            val safeIntent = intent?.toSafeIntent()
+            safeIntent
                 ?.let(::getIntentSource)
                 ?.also { components.analytics.metrics.track(Event.OpenedApp(it)) }
+            // record on cold startup
+            safeIntent
+                ?.let(::getIntentAllSource)
+                ?.also { components.analytics.metrics.track(Event.AppRecievedIntent(it)) }
         }
         supportActionBar?.hide()
 
@@ -250,6 +254,15 @@ open class HomeActivity : LocaleAwareAppCompatActivity() {
                 ?.let { it as? TabTrayDialogFragment }
                 ?.also { it.dismissAllowingStateLoss() }
         }
+
+        // If there is a warm or hot startup, onNewIntent method is always called first.
+        // Note: This does not work in case of an user sending an intent with ACTION_VIEW
+        // for example, launch the application, and than use adb to send an intent with
+        // ACTION_VIEW to open a link. In this case, we will get multiple telemetry events.
+        intent
+            .toSafeIntent()
+            .let(::getIntentAllSource)
+            ?.also { components.analytics.metrics.track(Event.AppRecievedIntent(it)) }
     }
 
     /**
@@ -320,6 +333,14 @@ open class HomeActivity : LocaleAwareAppCompatActivity() {
         }
     }
 
+    protected open fun getIntentAllSource(intent: SafeIntent): Event.AppRecievedIntent.Source? {
+        return when {
+            intent.isLauncherIntent -> Event.AppRecievedIntent.Source.APP_ICON
+            intent.action == Intent.ACTION_VIEW -> Event.AppRecievedIntent.Source.LINK
+            else -> Event.AppRecievedIntent.Source.UNKNOWN
+        }
+    }
+
     /**
      * External sources such as 3rd party links and shortcuts use this function to enter
      * private mode directly before the content view is created. Returns the mode set by the intent

app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt

@@ -97,6 +97,10 @@ private val Event.wrapper: EventWrapper<*>?
             { Events.appOpened.record(it) },
             { Events.appOpenedKeys.valueOf(it) }
         )
+        is Event.AppRecievedIntent -> EventWrapper(
+            { Events.appReceivedIntent.record(it) },
+            { Events.appReceivedIntentKeys.valueOf(it) }
+        )
         is Event.SearchBarTapped -> EventWrapper(
             { Events.searchBarTapped.record(it) },
             { Events.searchBarTappedKeys.valueOf(it) }

app/src/main/java/org/mozilla/fenix/components/metrics/Metrics.kt

@@ -309,6 +309,13 @@ sealed class Event {
             get() = hashMapOf(Events.appOpenedKeys.source to source.name)
     }
 
+    data class AppRecievedIntent(val source: Source) : Event() {
+        enum class Source { APP_ICON, LINK, CUSTOM_TAB, UNKNOWN }
+
+        override val extras: Map<Events.appReceivedIntentKeys, String>?
+            get() = hashMapOf(Events.appReceivedIntentKeys.source to source.name)
+    }
+
     data class CollectionSaveButtonPressed(val fromScreen: String) : Event() {
         override val extras: Map<Collections.saveButtonKeys, String>?
             get() = mapOf(Collections.saveButtonKeys.fromScreen to fromScreen)

app/src/main/java/org/mozilla/fenix/customtabs/ExternalAppBrowserActivity.kt

@@ -41,6 +41,8 @@ open class ExternalAppBrowserActivity : HomeActivity() {
 
     final override fun getIntentSource(intent: SafeIntent) = Event.OpenedApp.Source.CUSTOM_TAB
 
+    final override fun getIntentAllSource(intent: SafeIntent) = Event.AppRecievedIntent.Source.CUSTOM_TAB
+
     final override fun getIntentSessionId(intent: SafeIntent) = intent.getSessionId()
 
     override fun getNavDirections(