For #1857: Adds telemetry for QR scanner

app/metrics.yaml

@@ -633,4 +633,50 @@ activation:
     - https://github.com/mozilla-mobile/fenix/pull/1707#issuecomment-486972209
     notification_emails:
     - fenix-core@mozilla.com
-    expires: "2019-10-01"
+    expires: "2019-10-01"
+
+qr_scanner:
+  opened:
+    type: event
+    description: >
+      A user opened the QR scanner
+    bugs:
+    - 1857
+    data_reviews:
+    - https://github.com/mozilla-mobile/fenix/pull/2524#issuecomment-492739967
+    notification_emails:
+    - fenix-core@mozilla.com
+    expires: "2020-03-01"
+  prompt_displayed:
+    type: event
+    description: >
+      A user scanned a QR code, causing a confirmation prompt to display asking if they want to navigate to the page
+    bugs:
+    - 1857
+    data_reviews:
+    - https://github.com/mozilla-mobile/fenix/pull/2524#issuecomment-492739967
+    notification_emails:
+    - fenix-core@mozilla.com
+    expires: "2020-03-01"
+  navigation_allowed:
+    type: event
+    description: >
+      A user tapped "allow" on the prompt, directing the user to the website scanned
+    bugs:
+    - 1857
+    data_reviews:
+    - https://github.com/mozilla-mobile/fenix/pull/2524#issuecomment-492739967
+    notification_emails:
+    - fenix-core@mozilla.com
+    expires: "2020-03-01"
+  navigation_denied:
+    type: event
+    description: >
+      A user tapped "deny" on the prompt, putting the user back to the scanning view
+    bugs:
+    - 1857
+    data_reviews:
+    - https://github.com/mozilla-mobile/fenix/pull/2524#issuecomment-492739967
+    notification_emails:
+    - fenix-core@mozilla.com
+    expires: "2020-03-01"

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

@@ -22,6 +22,7 @@ import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.runBlocking
+import org.mozilla.fenix.GleanMetrics.QrScanner
 
 private class EventWrapper<T : Enum<T>>(
     private val recorder: ((Map<T, String>?) -> Unit),
@@ -158,6 +159,18 @@ private val Event.wrapper
         is Event.UriOpened -> EventWrapper<NoExtraKeys>(
             { Events.totalUriCount.add(1) }
         )
+        is Event.QRScannerOpened -> EventWrapper<NoExtraKeys>(
+            { QrScanner.opened.record(it) }
+        )
+        is Event.QRScannerPromptDisplayed -> EventWrapper<NoExtraKeys>(
+            { QrScanner.promptDisplayed.record(it) }
+        )
+        is Event.QRScannerNavigationAllowed -> EventWrapper<NoExtraKeys>(
+            { QrScanner.navigationAllowed.record(it) }
+        )
+        is Event.QRScannerNavigationDenied -> EventWrapper<NoExtraKeys>(
+            { QrScanner.navigationDenied.record(it) }
+        )
 
         // Don't track other events with Glean
         else -> null

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

@@ -74,6 +74,10 @@ sealed class Event {
     object CustomTabsActionTapped : Event()
     object CustomTabsMenuOpened : Event()
     object UriOpened : Event()
+    object QRScannerOpened : Event()
+    object QRScannerPromptDisplayed : Event()
+    object QRScannerNavigationAllowed : Event()
+    object QRScannerNavigationDenied : Event()
 
     data class PreferenceToggled(val preferenceKey: String, val enabled: Boolean, val context: Context) : Event() {
         private val switchPreferenceTelemetryAllowList = listOf(

app/src/main/java/org/mozilla/fenix/search/SearchFragment.kt

@@ -110,6 +110,7 @@ class SearchFragment : Fragment(), BackHandler {
                     requestPermissions(permissions, REQUEST_CODE_CAMERA_PERMISSIONS)
                 },
                 onScanResult = { result ->
+                    search_scan_button.isChecked = false
                     activity?.let {
                         AlertDialog.Builder(it).apply {
                             val spannable = resources.getSpannable(
@@ -121,20 +122,22 @@ class SearchFragment : Fragment(), BackHandler {
                             )
                             setMessage(spannable)
                             setNegativeButton("DENY") { dialog: DialogInterface, _ ->
+                                requireComponents.analytics.metrics.track(Event.QRScannerNavigationDenied)
                                 dialog.cancel()
                             }
                             setPositiveButton("ALLOW") { dialog: DialogInterface, _ ->
+                                requireComponents.analytics.metrics.track(Event.QRScannerNavigationAllowed)
                                 (activity as HomeActivity)
                                     .openToBrowserAndLoad(
                                         searchTermOrURL = result,
                                         newTab = sessionId == null,
                                         from = BrowserDirection.FromSearch
                                     )
                                 dialog.dismiss()
-                                // TODO add metrics
                             }
                             create()
                         }.show()
+                        requireComponents.analytics.metrics.track(Event.QRScannerPromptDisplayed)
                     }
                 }),
             owner = this,
@@ -143,6 +146,7 @@ class SearchFragment : Fragment(), BackHandler {
 
         view.search_scan_button.setOnClickListener {
             getManagedEmitter<SearchChange>().onNext(SearchChange.ToolbarClearedFocus)
+            requireComponents.analytics.metrics.track(Event.QRScannerOpened)
             qrFeature.get()?.scan(R.id.container)
         }