Simplify tab navigation using new extensions

Author: Isira-Seneviratne

app/src/main/java/org/wikipedia/Constants.kt

@@ -25,10 +25,8 @@ object Constants {
     const val INTENT_EXTRA_ACTION = "intentAction"
     const val INTENT_EXTRA_DELETE_READING_LIST = "deleteReadingList"
     const val INTENT_EXTRA_GO_TO_MAIN_TAB = "goToMainTab"
-    const val INTENT_EXTRA_GO_TO_SE_TAB = "goToSETab"
     const val INTENT_EXTRA_HAS_TRANSITION_ANIM = "hasTransitionAnim"
     const val INTENT_EXTRA_INVOKE_SOURCE = "invokeSource"
-    const val INTENT_EXTRA_PREVIEW_SAVED_READING_LISTS = "previewSavedReadingList"
     const val INTENT_EXTRA_NOTIFICATION_ID = "notificationId"
     const val INTENT_EXTRA_NOTIFICATION_SYNC_CANCEL = "syncCancel"
     const val INTENT_EXTRA_NOTIFICATION_SYNC_PAUSE_RESUME = "syncPauseResume"

app/src/main/java/org/wikipedia/main/MainActivity.kt

@@ -15,6 +15,7 @@ import org.wikipedia.activity.SingleFragmentActivity
 import org.wikipedia.analytics.eventplatform.ImageRecommendationsEvent
 import org.wikipedia.databinding.ActivityMainBinding
 import org.wikipedia.dataclient.WikiSite
+import org.wikipedia.extensions.serializableExtra
 import org.wikipedia.navtab.NavTab
 import org.wikipedia.onboarding.InitialOnboardingActivity
 import org.wikipedia.page.PageActivity
@@ -39,8 +40,8 @@ class MainActivity : SingleFragmentActivity<MainFragment>(), MainFragment.Callba
         super.onCreate(savedInstanceState)
 
         setImageZoomHelper()
-        if (Prefs.isInitialOnboardingEnabled && savedInstanceState == null && !intent.hasExtra(
-                Constants.INTENT_EXTRA_PREVIEW_SAVED_READING_LISTS)) {
+        if (Prefs.isInitialOnboardingEnabled && savedInstanceState == null &&
+            intent.serializableExtra<NavTab>(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB) != NavTab.READING_LISTS) {
             // Updating preference so the search multilingual tooltip
             // is not shown again for first time users
             Prefs.isMultilingualSearchTooltipShown = false

app/src/main/java/org/wikipedia/main/MainFragment.kt

@@ -36,6 +36,7 @@ import org.wikipedia.databinding.FragmentMainBinding
 import org.wikipedia.dataclient.WikiSite
 import org.wikipedia.events.ImportReadingListsEvent
 import org.wikipedia.events.LoggedOutInBackgroundEvent
+import org.wikipedia.extensions.serializableExtra
 import org.wikipedia.feed.FeedFragment
 import org.wikipedia.feed.image.FeaturedImage
 import org.wikipedia.feed.image.FeaturedImageCard
@@ -296,16 +297,14 @@ class MainFragment : Fragment(), BackPressedHandler, MenuProvider, FeedFragment.
             startActivity(PageActivity.newIntent(requireActivity()))
         } else if (intent.hasExtra(Constants.INTENT_EXTRA_DELETE_READING_LIST)) {
             goToTab(NavTab.READING_LISTS)
-        } else if (intent.hasExtra(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB) &&
-                !(binding.mainNavTabLayout.selectedItemId == NavTab.EXPLORE.code() &&
-                        intent.getIntExtra(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB, NavTab.EXPLORE.code()) == NavTab.EXPLORE.code())) {
-            goToTab(NavTab.of(intent.getIntExtra(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB, NavTab.EXPLORE.code())))
-        } else if (intent.hasExtra(Constants.INTENT_EXTRA_GO_TO_SE_TAB)) {
-            goToTab(NavTab.of(intent.getIntExtra(Constants.INTENT_EXTRA_GO_TO_SE_TAB, NavTab.EDITS.code())))
-        } else if (intent.hasExtra(Constants.INTENT_EXTRA_PREVIEW_SAVED_READING_LISTS)) {
-            goToTab(NavTab.READING_LISTS)
-        } else if (lastPageViewedWithin(1) && !intent.hasExtra(Constants.INTENT_RETURN_TO_MAIN) && WikipediaApp.instance.tabCount > 0) {
-            startActivity(PageActivity.newIntent(requireContext()))
+        } else {
+            val tab = intent.serializableExtra<NavTab>(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB)
+            if (tab != null && (binding.mainNavTabLayout.selectedItemId != NavTab.EXPLORE.code()
+                        || tab != NavTab.EXPLORE)) {
+                goToTab(tab)
+            } else if (lastPageViewedWithin(1) && !intent.hasExtra(Constants.INTENT_RETURN_TO_MAIN) && WikipediaApp.instance.tabCount > 0) {
+                startActivity(PageActivity.newIntent(requireContext()))
+            }
         }
     }
 

app/src/main/java/org/wikipedia/notifications/NotificationPollBroadcastReceiver.kt

@@ -23,6 +23,7 @@ import org.wikipedia.dataclient.WikiSite
 import org.wikipedia.events.UnreadNotificationsEvent
 import org.wikipedia.extensions.parcelableExtra
 import org.wikipedia.main.MainActivity
+import org.wikipedia.navtab.NavTab
 import org.wikipedia.notifications.db.Notification
 import org.wikipedia.page.PageTitle
 import org.wikipedia.push.WikipediaFirebaseMessagingService
@@ -184,7 +185,9 @@ class NotificationPollBroadcastReceiver : BroadcastReceiver() {
         }
 
         fun showSuggestedEditsLocalNotification(context: Context, @StringRes description: Int) {
-            val intent = NotificationPresenter.addIntentExtras(MainActivity.newIntent(context).putExtra(Constants.INTENT_EXTRA_GO_TO_SE_TAB, true), 0, TYPE_LOCAL)
+            val mainIntent = MainActivity.newIntent(context)
+                .putExtra(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB, NavTab.EDITS)
+            val intent = NotificationPresenter.addIntentExtras(mainIntent, 0, TYPE_LOCAL)
             NotificationPresenter.showNotification(context, NotificationPresenter.getDefaultBuilder(context, 0, TYPE_LOCAL), 0,
                     context.getString(R.string.suggested_edits_reactivation_notification_title),
                     context.getString(description), context.getString(description), null,

app/src/main/java/org/wikipedia/page/PageFragment.kt

@@ -1266,7 +1266,7 @@ class PageFragment : Fragment(), BackPressedHandler, CommunicationBridge.Communi
         startActivity(MainActivity.newIntent(requireContext())
             .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
             .putExtra(Constants.INTENT_RETURN_TO_MAIN, true)
-            .putExtra(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB, NavTab.EXPLORE.code()))
+            .putExtra(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB, NavTab.EXPLORE))
         requireActivity().finish()
     }
 

app/src/main/java/org/wikipedia/page/tabs/TabActivity.kt

@@ -289,7 +289,7 @@ class TabActivity : BaseActivity() {
         startActivity(MainActivity.newIntent(this)
                 .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
                 .putExtra(Constants.INTENT_RETURN_TO_MAIN, true)
-                .putExtra(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB, NavTab.EXPLORE.code()))
+                .putExtra(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB, NavTab.EXPLORE))
         finish()
     }
 

app/src/main/java/org/wikipedia/readinglist/ReadingListFragment.kt

@@ -42,6 +42,7 @@ import org.wikipedia.events.PageDownloadEvent
 import org.wikipedia.history.HistoryEntry
 import org.wikipedia.history.SearchActionModeCallback
 import org.wikipedia.main.MainActivity
+import org.wikipedia.navtab.NavTab
 import org.wikipedia.page.ExclusiveBottomSheetPresenter
 import org.wikipedia.page.PageActivity
 import org.wikipedia.page.PageAvailableOfflineHandler
@@ -467,7 +468,8 @@ class ReadingListFragment : Fragment(), MenuProvider, ReadingListItemActionsDial
                     AppDatabase.instance.readingListPageDao().addPagesToList(it, it.pages, true)
                     Prefs.readingListRecentReceivedId = it.id
                     requireActivity().startActivity(MainActivity.newIntent(requireContext())
-                        .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP).putExtra(Constants.INTENT_EXTRA_PREVIEW_SAVED_READING_LISTS, true))
+                        .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
+                        .putExtra(Constants.INTENT_EXTRA_GO_TO_MAIN_TAB, NavTab.READING_LISTS))
                     requireActivity().finish()
                 }
                 .setNegativeButton(R.string.reading_lists_preview_save_dialog_cancel, null)