Modal changes space children

vector/src/main/java/im/vector/app/features/home/HomeDetailFragment.kt

@@ -137,6 +137,7 @@ class HomeDetailFragment @Inject constructor(
                 }
                 is RoomGroupingMethod.BySpace       -> {
                     onSpaceChange(roomGroupingMethod.spaceSummary)
+                    sharedActionViewModel.space.value = roomGroupingMethod.spaceSummary
                 }
             }
         }

vector/src/main/java/im/vector/app/features/home/HomeSharedActionViewModel.kt

@@ -16,8 +16,13 @@
 
 package im.vector.app.features.home
 
+import androidx.lifecycle.MutableLiveData
 import im.vector.app.core.platform.VectorSharedActionViewModel
 import org.matrix.android.sdk.api.session.Session
+import org.matrix.android.sdk.api.session.room.model.RoomSummary
 import javax.inject.Inject
 
-class HomeSharedActionViewModel @Inject constructor(val session: Session) : VectorSharedActionViewModel<HomeActivitySharedAction>()
+class HomeSharedActionViewModel @Inject constructor(val session: Session) : VectorSharedActionViewModel<HomeActivitySharedAction>() {
+
+    val space = MutableLiveData<RoomSummary>()
+}

vector/src/main/java/im/vector/app/features/home/SpaceListModalFragment.kt

@@ -24,10 +24,14 @@ import androidx.recyclerview.widget.LinearLayoutManager
 import com.airbnb.mvrx.fragmentViewModel
 import com.airbnb.mvrx.withState
 import dagger.hilt.android.AndroidEntryPoint
+import im.vector.app.core.extensions.observeNotNull
 import im.vector.app.core.platform.VectorBaseFragment
 import im.vector.app.databinding.FragmentSpaceListModalBinding
 import im.vector.app.features.spaces.SpaceListAction
 import im.vector.app.features.spaces.SpaceListViewModel
+import org.matrix.android.sdk.api.session.room.model.RoomSummary
+import org.matrix.android.sdk.api.util.MatrixItem
+import org.matrix.android.sdk.api.util.toMatrixItem
 import javax.inject.Inject
 
 @AndroidEntryPoint
@@ -52,6 +56,7 @@ class SpaceListModalFragment : VectorBaseFragment<FragmentSpaceListModalBinding>
         sharedActionViewModel = activityViewModelProvider.get(HomeSharedActionViewModel::class.java)
         setupRecyclerView()
         setupAddSpace()
+        observeSpaceChange()
     }
 
     private fun setupRecyclerView() {
@@ -70,6 +75,10 @@ class SpaceListModalFragment : VectorBaseFragment<FragmentSpaceListModalBinding>
         }
     }
 
+    private fun observeSpaceChange() = sharedActionViewModel.space.observeNotNull(viewLifecycleOwner) {
+        viewModel.setSpace(it)
+    }
+
     override fun invalidate() {
         withState(viewModel) { state ->
             state.rootSpacesOrdered?.let {

vector/src/main/java/im/vector/app/features/spaces/SpaceListViewModel.kt

@@ -17,6 +17,7 @@
 package im.vector.app.features.spaces
 
 import androidx.lifecycle.asFlow
+import com.airbnb.mvrx.Async
 import com.airbnb.mvrx.Loading
 import com.airbnb.mvrx.MavericksViewModelFactory
 import com.airbnb.mvrx.Success
@@ -54,6 +55,7 @@ import org.matrix.android.sdk.api.session.group.groupSummaryQueryParams
 import org.matrix.android.sdk.api.session.room.RoomSortOrder
 import org.matrix.android.sdk.api.session.room.accountdata.RoomAccountDataTypes
 import org.matrix.android.sdk.api.session.room.model.Membership
+import org.matrix.android.sdk.api.session.room.model.RoomSummary
 import org.matrix.android.sdk.api.session.room.roomSummaryQueryParams
 import org.matrix.android.sdk.api.session.room.spaceSummaryQueryParams
 import org.matrix.android.sdk.api.session.room.summary.RoomAggregateNotificationCount
@@ -71,6 +73,8 @@ class SpaceListViewModel @AssistedInject constructor(@Assisted initialState: Spa
                                                      private val analyticsTracker: AnalyticsTracker
 ) : VectorViewModel<SpaceListViewState, SpaceListAction, SpaceListViewEvents>(initialState) {
 
+    private var currentSpace: RoomSummary? = null
+
     @AssistedFactory
     interface Factory : MavericksAssistedViewModelFactory<SpaceListViewModel, SpaceListViewState> {
         override fun create(initialState: SpaceListViewState): SpaceListViewModel
@@ -273,6 +277,8 @@ class SpaceListViewModel @AssistedInject constructor(@Assisted initialState: Spa
         _viewEvents.post(SpaceListViewEvents.AddSpace)
     }
 
+    var asyncSpaceList: Async<List<RoomSummary>>? = null
+
     private fun observeSpaceSummaries() {
         val params = spaceSummaryQueryParams {
             memberships = listOf(Membership.JOIN, Membership.INVITE)
@@ -287,10 +293,12 @@ class SpaceListViewModel @AssistedInject constructor(@Assisted initialState: Spa
                         .asFlow()
         ) { spaces, _ ->
             spaces
-        }
+        }.execute { async ->
-                .execute { async ->
+            asyncSpaceList = async
+            val currentSpaceChildren = currentSpace?.let { space -> async.invoke()?.filter { it.flattenParentIds.contains(space.roomId) } }
             val rootSpaces = async.invoke().orEmpty().filter { it.flattenParentIds.isEmpty() }
-                    val orders = rootSpaces.associate {
+            val displaySpaces = currentSpaceChildren ?: rootSpaces
+            val orders = displaySpaces.associate {
                 it.roomId to session.getRoom(it.roomId)
                         ?.roomAccountDataService()
                         ?.getAccountDataEvent(RoomAccountDataTypes.EVENT_TYPE_SPACE_ORDER)
@@ -299,7 +307,7 @@ class SpaceListViewModel @AssistedInject constructor(@Assisted initialState: Spa
             }
             copy(
                     asyncSpaces = async,
-                            rootSpacesOrdered = rootSpaces.sortedWith(TopLevelSpaceComparator(orders)),
+                    rootSpacesOrdered = displaySpaces.sortedWith(TopLevelSpaceComparator(orders)),
                     spaceOrderInfo = orders
             )
         }
@@ -314,4 +322,29 @@ class SpaceListViewModel @AssistedInject constructor(@Assisted initialState: Spa
                     )
                 }
     }
+
+    private fun emitSpaceViewState() = asyncSpaceList?.let { async ->
+        val currentSpaceChildren = currentSpace?.let { space -> asyncSpaceList?.invoke()?.filter { it.flattenParentIds.contains(space.roomId) } }
+        val rootSpaces = asyncSpaceList?.invoke().orEmpty().filter { it.flattenParentIds.isEmpty() }
+        val displaySpaces = currentSpaceChildren ?: rootSpaces
+        val orders = displaySpaces.associate {
+            it.roomId to session.getRoom(it.roomId)
+                    ?.roomAccountDataService()
+                    ?.getAccountDataEvent(RoomAccountDataTypes.EVENT_TYPE_SPACE_ORDER)
+                    ?.content.toModel<SpaceOrderContent>()
+                    ?.safeOrder()
+        }
+        setState {
+            copy(
+                    asyncSpaces = async,
+                    rootSpacesOrdered = displaySpaces.sortedWith(TopLevelSpaceComparator(orders)),
+                    spaceOrderInfo = orders
+            )
+        }
+    }
+
+    fun setSpace(space: RoomSummary) {
+        this.currentSpace = space
+        emitSpaceViewState()
+    }
 }

vector/src/main/res/drawable/ripple_grey.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ripple xmlns:android="http://schemas.android.com/apk/res/android"
+    android:color="?attr/vctr_content_secondary">
+
+    <!--this creates the mask with the ripple effect-->
+    <item
+        android:id="@+id/mask"
+        android:drawable="@android:color/white" />
+
+</ripple>

vector/src/main/res/layout/fragment_space_list_modal.xml

@@ -50,7 +50,7 @@
         android:id="@+id/add_space_clickbox"
         android:layout_width="match_parent"
         android:layout_height="0dp"
-        android:background="@drawable/ripple_selector_key_pf"
+        android:background="@drawable/ripple_grey"
         app:layout_constraintTop_toBottomOf="@id/bottom_divider"
         app:layout_constraintBottom_toBottomOf="parent" />
 

vector/src/main/res/layout/item_modal_space.xml

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:background="@drawable/ripple_selector_key_pf"
+    android:background="@drawable/ripple_grey"
     android:paddingTop="12dp"
     android:paddingBottom="12dp">