[fenix] For https://github.com/mozilla-mobile/fenix/issues/26308 - Add feature flag for MR onboarding

.experimenter.yaml

@@ -58,6 +58,14 @@ nimbus-validation:
     settings-title:
       type: string
       description: The title of displayed in the Settings screen and app menu.
+onboarding:
+  description: The onboarding features displayed on homescreen.
+  hasExposure: true
+  exposureDescription: ""
+  variables:
+    sections-enabled:
+      type: json
+      description: This property provides a lookup table of whether or not the given section should be enabled.
 pocket-sponsored-stories:
   description: A feature showing sponsored stories in between the other Pocket recommended stories on homescreen.
   hasExposure: true

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

@@ -23,6 +23,11 @@ object FeatureFlags {
      */
     const val syncAddressesFeature = false
 
+    /**
+     * Enables the on-boarding sync cfr on the home screen.
+     */
+    val showSynCFR = Config.channel.isDebug
+
     /**
      * Enables the "recent" tabs feature in the home screen.
      */

app/src/main/java/org/mozilla/fenix/utils/Settings.kt

@@ -44,6 +44,7 @@ import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.getPreferenceKey
 import org.mozilla.fenix.nimbus.FxNimbus
 import org.mozilla.fenix.nimbus.HomeScreenSection
+import org.mozilla.fenix.nimbus.OnboardingSection
 import org.mozilla.fenix.settings.PhoneFeature
 import org.mozilla.fenix.settings.deletebrowsingdata.DeleteBrowsingDataOnQuitType
 import org.mozilla.fenix.settings.logins.SavedLoginsSortingStrategyMenu
@@ -1200,6 +1201,9 @@ class Settings(private val appContext: Context) : PreferencesHolder {
         default = false
     )
 
+    private val onboardScreenSection: Map<OnboardingSection, Boolean> get() =
+        FxNimbus.features.onboarding.value().sectionsEnabled
+
     private val homescreenSections: Map<HomeScreenSection, Boolean> get() = try {
         FxNimbus.features.homescreen.value().sectionsEnabled
     } catch (e: NimbusFeatureException) {
@@ -1212,6 +1216,16 @@ class Settings(private val appContext: Context) : PreferencesHolder {
         featureFlag = FeatureFlags.historyMetadataUIFeature || isHistoryMetadataEnabled
     )
 
+    /**
+     * Indicates if sync on-boarding CFR should be shown
+     * Returns true if the [FeatureFlags.showSynCFR] and [R.string.pref_key_should_show_sync_cfr] are true.
+     */
+    var showSyncCFR by lazyFeatureFlagPreference(
+        appContext.getPreferenceKey(R.string.pref_key_should_show_sync_cfr),
+        featureFlag = FeatureFlags.showSynCFR,
+        default = { onboardScreenSection[OnboardingSection.SYNC_CFR] == true },
+    )
+
     /**
      * Indicates if the recent tabs functionality should be visible.
      * Returns true if the [FeatureFlags.showRecentTabsFeature] and [R.string.pref_key_recent_tabs] are true.

app/src/main/res/values/preference_keys.xml

@@ -236,6 +236,8 @@
     <string name="pref_key_has_inactive_tabs_auto_close_dialog_dismissed" translatable="false">pref_key_has_inactive_tabs_auto_close_dialog_dismissed</string>
     <!-- A value  of `true` means the jump back in onboarding popup has not been shown yet -->
     <string name="pref_key_should_show_jump_back_in_tabs_popup" translatable="false">pref_key_should_show_jump_back_in_tabs_popup</string>
+    <!-- A value  of `true` means the  on-boarding sync CFR have not been shown yet -->
+    <string name="pref_key_should_show_sync_cfr" translatable="false">pref_key_should_show_sync_cfr</string>
 
     <string name="pref_key_debug_settings" translatable="false">pref_key_debug_settings</string>
 

nimbus.fml.yaml

@@ -33,6 +33,23 @@ features:
             "contile-top-sites": false,
           }
         }
+  onboarding:
+    description: The homescreen that the user goes to when they press home or new tab.
+    variables:
+      sections-enabled:
+        description: "This property provides a lookup table of whether or not the given section should be enabled."
+        type: Map<OnboardingSection, Boolean>
+        default:
+          {
+            "sync-cfr": false
+          }
+    defaults:
+      - channel: nightly
+        value: {
+          "sections-enabled": {
+            "sync-cfr": false
+          }
+        }
   nimbus-validation:
     description: "A feature that does not correspond to an application feature suitable for showing
     that Nimbus is working. This should never be used in production."
@@ -305,4 +322,9 @@ types:
           description: A setting in the settings screen.
         homescreen-banner:
           description: A banner in the homescreen.
+    OnboardingSection:
+      description: The identifiers for the sections of the onboarding.
+      variants:
+        sync-cfr:
+          description: Sync onboarding CFR.