Fix back handling between tabs.

app/src/main/java/org/thoughtcrime/securesms/calls/log/CallLogFragment.kt

@@ -6,13 +6,16 @@ import android.view.Menu
 import android.view.MenuInflater
 import android.view.MenuItem
 import android.view.View
+import androidx.activity.OnBackPressedCallback
 import androidx.coordinatorlayout.widget.CoordinatorLayout
 import androidx.core.view.MenuProvider
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.viewModels
+import androidx.recyclerview.widget.LinearLayoutManager
 import com.google.android.material.appbar.AppBarLayout
 import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers
 import io.reactivex.rxjava3.kotlin.Observables
+import io.reactivex.rxjava3.kotlin.subscribeBy
 import org.signal.core.util.DimensionUnit
 import org.thoughtcrime.securesms.R
 import org.thoughtcrime.securesms.components.Material3SearchToolbar
@@ -27,6 +30,8 @@ import org.thoughtcrime.securesms.conversationlist.chatfilter.FilterLerp
 import org.thoughtcrime.securesms.conversationlist.chatfilter.FilterPullState
 import org.thoughtcrime.securesms.databinding.CallLogFragmentBinding
 import org.thoughtcrime.securesms.main.SearchBinder
+import org.thoughtcrime.securesms.stories.tabs.ConversationListTab
+import org.thoughtcrime.securesms.stories.tabs.ConversationListTabsViewModel
 import org.thoughtcrime.securesms.util.LifecycleDisposable
 import org.thoughtcrime.securesms.util.ViewUtil
 import org.thoughtcrime.securesms.util.fragments.requireListener
@@ -38,6 +43,10 @@ import java.util.Objects
 @SuppressLint("DiscouragedApi")
 class CallLogFragment : Fragment(R.layout.call_log_fragment), CallLogAdapter.Callbacks, CallLogContextMenu.Callbacks {
 
+  companion object {
+    private const val LIST_SMOOTH_SCROLL_TO_TOP_THRESHOLD = 25
+  }
+
   private val viewModel: CallLogViewModel by viewModels()
   private val binding: CallLogFragmentBinding by ViewBinderDelegate(CallLogFragmentBinding::bind)
   private val disposables = LifecycleDisposable()
@@ -49,6 +58,8 @@ class CallLogFragment : Fragment(R.layout.call_log_fragment), CallLogAdapter.Cal
     }
   )
 
+  private val tabsViewModel: ConversationListTabsViewModel by viewModels(ownerProducer = { requireActivity() })
+
   private val menuProvider = object : MenuProvider {
     override fun onCreateMenu(menu: Menu, menuInflater: MenuInflater) {
       menuInflater.inflate(R.menu.calls_tab_menu, menu)
@@ -103,6 +114,18 @@ class CallLogFragment : Fragment(R.layout.call_log_fragment), CallLogAdapter.Cal
     binding.recycler.adapter = adapter
 
     initializePullToFilter()
+    initializeTapToScrollToTop()
+
+    requireActivity().onBackPressedDispatcher.addCallback(
+      viewLifecycleOwner,
+      object : OnBackPressedCallback(true) {
+        override fun handleOnBackPressed() {
+          if (!closeSearchIfOpen()) {
+            tabsViewModel.onChatsSelected()
+          }
+        }
+      }
+    )
   }
 
   override fun onResume() {
@@ -110,6 +133,19 @@ class CallLogFragment : Fragment(R.layout.call_log_fragment), CallLogAdapter.Cal
     initializeSearchAction()
   }
 
+  private fun initializeTapToScrollToTop() {
+    disposables += tabsViewModel.tabClickEvents
+      .filter { it == ConversationListTab.CALLS }
+      .subscribeBy(onNext = {
+        val layoutManager = binding.recycler.layoutManager as? LinearLayoutManager ?: return@subscribeBy
+        if (layoutManager.findFirstVisibleItemPosition() <= LIST_SMOOTH_SCROLL_TO_TOP_THRESHOLD) {
+          binding.recycler.smoothScrollToPosition(0)
+        } else {
+          binding.recycler.scrollToPosition(0)
+        }
+      })
+  }
+
   private fun initializeSearchAction() {
     val searchBinder = requireListener<SearchBinder>()
     searchBinder.getSearchAction().setOnClickListener {
@@ -201,6 +237,15 @@ class CallLogFragment : Fragment(R.layout.call_log_fragment), CallLogAdapter.Cal
     return isSearchVisible() || viewModel.hasSearchQuery
   }
 
+  private fun closeSearchIfOpen(): Boolean {
+    if (isSearchOpen()) {
+      requireListener<SearchBinder>().getSearchToolbar().get().collapse()
+      requireListener<SearchBinder>().onSearchClosed()
+      return true
+    }
+    return false
+  }
+
   private fun isSearchVisible(): Boolean {
     return requireListener<SearchBinder>().getSearchToolbar().resolved() &&
       requireListener<SearchBinder>().getSearchToolbar().get().getVisibility() == View.VISIBLE

app/src/main/java/org/thoughtcrime/securesms/main/MainActivityListHostFragment.kt

@@ -142,22 +142,16 @@ class MainActivityListHostFragment : Fragment(R.layout.main_activity_list_host_f
   private fun goToStateFromCalling(state: ConversationListTabsState, navController: NavController) {
     when (state.tab) {
       ConversationListTab.CALLS -> return
-      ConversationListTab.CHATS -> navController.popBackStack()
-      ConversationListTab.STORIES -> {
-        navController.popBackStack()
-        goToStateFromConversationList(state, navController)
-      }
+      ConversationListTab.CHATS -> navController.popBackStack(R.id.conversationListFragment, false)
+      ConversationListTab.STORIES -> navController.navigate(R.id.action_callLogFragment_to_storiesLandingFragment)
     }
   }
 
   private fun goToStateFromStories(state: ConversationListTabsState, navController: NavController) {
     when (state.tab) {
       ConversationListTab.STORIES -> return
-      ConversationListTab.CHATS -> navController.popBackStack()
-      ConversationListTab.CALLS -> {
-        navController.popBackStack()
-        goToStateFromConversationList(state, navController)
-      }
+      ConversationListTab.CHATS -> navController.popBackStack(R.id.conversationListFragment, false)
+      ConversationListTab.CALLS -> navController.navigate(R.id.action_storiesLandingFragment_to_callLogFragment)
     }
   }
 

app/src/main/java/org/thoughtcrime/securesms/stories/tabs/ConversationListTabsFragment.kt

@@ -61,7 +61,18 @@ class ConversationListTabsFragment : Fragment(R.layout.conversation_list_tabs) {
       viewModel.onStoriesSelected()
     }
 
-    binding.callsTabGroup.visible = FeatureFlags.callsTab()
+    if (!FeatureFlags.callsTab()) {
+      listOf(
+        binding.callsPill,
+        binding.callsTabIcon,
+        binding.callsTabContainer,
+        binding.callsTabLabel,
+        binding.callsUnreadIndicator,
+        binding.callsTabTouchPoint
+      ).forEach {
+        it.visible = false
+      }
+    }
 
     viewModel.state.observe(viewLifecycleOwner) {
       update(it, shouldBeImmediate)
@@ -73,8 +84,10 @@ class ConversationListTabsFragment : Fragment(R.layout.conversation_list_tabs) {
     binding.chatsTabIcon.isSelected = state.tab == ConversationListTab.CHATS
     binding.chatsPill.isSelected = state.tab == ConversationListTab.CHATS
 
-    binding.callsTabIcon.isSelected = state.tab == ConversationListTab.CALLS
-    binding.callsPill.isSelected = state.tab == ConversationListTab.CALLS
+    if (FeatureFlags.callsTab()) {
+      binding.callsTabIcon.isSelected = state.tab == ConversationListTab.CALLS
+      binding.callsPill.isSelected = state.tab == ConversationListTab.CALLS
+    }
 
     binding.storiesTabIcon.isSelected = state.tab == ConversationListTab.STORIES
     binding.storiesPill.isSelected = state.tab == ConversationListTab.STORIES
@@ -82,28 +95,39 @@ class ConversationListTabsFragment : Fragment(R.layout.conversation_list_tabs) {
     val hasStateChange = state.tab != state.prevTab
     if (immediate) {
       binding.chatsTabIcon.pauseAnimation()
-      binding.callsTabIcon.pauseAnimation()
       binding.storiesTabIcon.pauseAnimation()
 
       binding.chatsTabIcon.progress = if (state.tab == ConversationListTab.CHATS) 1f else 0f
-      binding.callsTabIcon.progress = if (state.tab == ConversationListTab.CALLS) 1f else 0f
       binding.storiesTabIcon.progress = if (state.tab == ConversationListTab.STORIES) 1f else 0f
 
-      runPillAnimation(0, binding.chatsPill, binding.callsPill, binding.storiesPill)
+      if (FeatureFlags.callsTab()) {
+        binding.callsTabIcon.pauseAnimation()
+        binding.callsTabIcon.progress = if (state.tab == ConversationListTab.CALLS) 1f else 0f
+        runPillAnimation(0, binding.callsPill, binding.chatsPill, binding.storiesPill)
+      } else {
+        runPillAnimation(0, binding.chatsPill, binding.storiesPill)
+      }
     } else if (hasStateChange) {
-      runLottieAnimations(binding.chatsTabIcon, binding.callsTabIcon, binding.storiesTabIcon)
-      runPillAnimation(150, binding.chatsPill, binding.callsPill, binding.storiesPill)
+      if (FeatureFlags.callsTab()) {
+        runLottieAnimations(binding.callsTabIcon, binding.chatsTabIcon, binding.storiesTabIcon)
+        runPillAnimation(150, binding.callsPill, binding.chatsPill, binding.storiesPill)
+      } else {
+        runLottieAnimations(binding.chatsTabIcon, binding.storiesTabIcon)
+        runPillAnimation(150, binding.chatsPill, binding.storiesPill)
+      }
     }
 
-    binding.chatsUnreadIndicator.alpha = if (state.unreadMessagesCount > 0) 1f else 0f
+    binding.chatsUnreadIndicator.visible = state.unreadMessagesCount > 0
     binding.chatsUnreadIndicator.text = formatCount(state.unreadMessagesCount)
 
-    binding.callsUnreadIndicator.alpha = if (state.unreadCallsCount > 0) 1f else 0f
-    binding.callsUnreadIndicator.text = formatCount(state.unreadCallsCount)
-
-    binding.storiesUnreadIndicator.alpha = if (state.unreadStoriesCount > 0) 1f else 0f
+    binding.storiesUnreadIndicator.visible = state.unreadStoriesCount > 0
     binding.storiesUnreadIndicator.text = formatCount(state.unreadStoriesCount)
 
+    if (FeatureFlags.callsTab()) {
+      binding.callsUnreadIndicator.visible = state.unreadCallsCount > 0
+      binding.callsUnreadIndicator.text = formatCount(state.unreadCallsCount)
+    }
+
     requireView().visible = state.visibilityState.isVisible()
   }
 

app/src/main/res/layout/conversation_list_tabs.xml

@@ -230,16 +230,4 @@
         app:layout_constraintTop_toTopOf="parent"
         tools:text="99+" />
 
-    <androidx.constraintlayout.widget.Group
-        android:id="@+id/calls_tab_group"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        app:constraint_referenced_ids="calls_pill,calls_tab_container,calls_tab_icon,calls_tab_label,calls_tab_touch_point,calls_unread_indicator" />
-
-    <androidx.constraintlayout.widget.Group
-        android:id="@+id/stories_tab_group"
-        app:constraint_referenced_ids="stories_pill,stories_tab_container,stories_tab_icon,stories_tab_label,stories_tab_touch_point,stories_unread_indicator"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent" />
-
 </androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/navigation/main_activity_list.xml

@@ -31,11 +31,19 @@
     <fragment
         android:id="@+id/storiesLandingFragment"
         android:name="org.thoughtcrime.securesms.stories.landing.StoriesLandingFragment"
-        android:label="stories_landing_fragment" />
+        android:label="stories_landing_fragment" >
+        <action
+            android:id="@+id/action_storiesLandingFragment_to_callLogFragment"
+            app:destination="@id/callLogFragment" />
+    </fragment>
 
     <fragment
         android:id="@+id/callLogFragment"
         android:name="org.thoughtcrime.securesms.calls.log.CallLogFragment"
-        android:label="call_log_fragment" />
+        android:label="call_log_fragment" >
+        <action
+            android:id="@+id/action_callLogFragment_to_storiesLandingFragment"
+            app:destination="@id/storiesLandingFragment" />
+    </fragment>
 
 </navigation>