Add empty create room fab button

app/src/main/kotlin/io/element/android/x/node/LoggedInFlowNode.kt

@@ -31,6 +31,7 @@ import com.bumble.appyx.core.node.ParentNode
 import com.bumble.appyx.core.node.node
 import com.bumble.appyx.navmodel.backstack.BackStack
 import com.bumble.appyx.navmodel.backstack.operation.push
+import io.element.android.features.createroom.CreateRoomNode
 import io.element.android.features.preferences.PreferencesFlowNode
 import io.element.android.features.roomlist.RoomListNode
 import io.element.android.libraries.architecture.animation.rememberDefaultTransitionHandler
@@ -86,6 +87,10 @@ class LoggedInFlowNode(
         override fun onSettingsClicked() {
             backstack.push(NavTarget.Settings)
         }
+
+        override fun onCreateRoomClicked() {
+            backstack.push(NavTarget.CreateRoom)
+        }
     }
 
     sealed interface NavTarget : Parcelable {
@@ -97,6 +102,9 @@ class LoggedInFlowNode(
 
         @Parcelize
         object Settings : NavTarget
+
+        @Parcelize
+        object CreateRoom : NavTarget
     }
 
     override fun resolve(navTarget: NavTarget, buildContext: BuildContext): Node {
@@ -120,6 +128,9 @@ class LoggedInFlowNode(
             NavTarget.Settings -> {
                 PreferencesFlowNode(buildContext, onOpenBugReport)
             }
+            NavTarget.CreateRoom -> {
+                CreateRoomNode(buildContext)
+            }
         }
     }
 

features/roomlist/src/main/kotlin/io/element/android/features/roomlist/RoomListNode.kt

@@ -38,6 +38,7 @@ class RoomListNode @AssistedInject constructor(
     interface Callback : Plugin {
         fun onRoomClicked(roomId: RoomId)
         fun onSettingsClicked()
+        fun onCreateRoomClicked()
     }
 
     private fun onRoomClicked(roomId: RoomId) {
@@ -48,6 +49,10 @@ class RoomListNode @AssistedInject constructor(
         plugins<Callback>().forEach { it.onSettingsClicked() }
     }
 
+    private fun onCreateRoomClicked() {
+        plugins<Callback>().forEach { it.onCreateRoomClicked() }
+    }
+
     @Composable
     override fun View(modifier: Modifier) {
         val state = presenter.present()
@@ -55,7 +60,8 @@ class RoomListNode @AssistedInject constructor(
             state = state,
             modifier = modifier,
             onRoomClicked = this::onRoomClicked,
-            onOpenSettings = this::onOpenSettings
+            onOpenSettings = this::onOpenSettings,
+            onCreateRoomClicked = this::onCreateRoomClicked,
         )
     }
 }

features/roomlist/src/main/kotlin/io/element/android/features/roomlist/RoomListView.kt

@@ -22,6 +22,7 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FabPosition
 import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.material3.rememberTopAppBarState
 import androidx.compose.runtime.Composable
@@ -42,6 +43,7 @@ import io.element.android.features.roomlist.model.RoomListState
 import io.element.android.features.roomlist.model.RoomListStateProvider
 import io.element.android.libraries.designsystem.preview.ElementPreviewDark
 import io.element.android.libraries.designsystem.preview.ElementPreviewLight
+import io.element.android.libraries.designsystem.theme.components.FloatingActionButton
 import io.element.android.libraries.designsystem.theme.components.Scaffold
 import io.element.android.libraries.designsystem.utils.LogCompositions
 import io.element.android.libraries.matrix.api.core.RoomId
@@ -54,6 +56,7 @@ fun RoomListView(
     modifier: Modifier = Modifier,
     onRoomClicked: (RoomId) -> Unit = {},
     onOpenSettings: () -> Unit = {},
+    onCreateRoomClicked: () -> Unit = {},
 ) {
     fun onFilterChanged(filter: String) {
         state.eventSink(RoomListEvents.UpdateFilter(filter))
@@ -72,6 +75,7 @@ fun RoomListView(
         onFilterChanged = ::onFilterChanged,
         onOpenSettings = onOpenSettings,
         onScrollOver = ::onVisibleRangedChanged,
+        onCreateRoomClicked = onCreateRoomClicked,
     )
 }
 
@@ -86,6 +90,7 @@ fun RoomListContent(
     onFilterChanged: (String) -> Unit = {},
     onOpenSettings: () -> Unit = {},
     onScrollOver: (IntRange) -> Unit = {},
+    onCreateRoomClicked: () -> Unit = {},
 ) {
     fun onRoomClicked(room: RoomListRoomSummary) {
         onRoomClicked(room.roomId)
@@ -148,7 +153,12 @@ fun RoomListContent(
                     }
                 }
             }
-        }
+        },
+        floatingActionButton = {
+            FloatingActionButton(onClick = onCreateRoomClicked) {
+                
+            }
+        },
     )
 }