Add focused location tracking when opening the map

features/location/api/src/main/kotlin/io/element/android/features/location/api/ShowLocationMode.kt

@@ -24,5 +24,7 @@ sealed interface ShowLocationMode : Parcelable {
     ) : ShowLocationMode
 
     @Parcelize
-    data object Live : ShowLocationMode
+    data class Live(
+        val senderId: UserId
+    ) : ShowLocationMode
 }

features/location/impl/src/main/kotlin/io/element/android/features/location/impl/show/ShowLocationPresenter.kt

@@ -131,8 +131,8 @@ class ShowLocationPresenter(
                     )
                 }
             }
-            ShowLocationMode.Live -> {
-                val liveShares by produceState(persistentListOf()) {
+            is ShowLocationMode.Live -> {
+                produceState(persistentListOf()) {
                     val liveLocationSharesFlow = joinedRoom.subscribeToLiveLocationShares()
                     val membersStateFlow = joinedRoom.membersStateFlow.mapState { it.joinedRoomMembers() }
                     combine(liveLocationSharesFlow, membersStateFlow) { liveShares, members ->
@@ -158,14 +158,19 @@ class ShowLocationPresenter(
                             )
                         }.toPersistentList()
                     }.collect { value = it }
-                }
-                liveShares
+                }.value
             }
         }
 
+        val focusedLocation = when (mode) {
+            is ShowLocationMode.Static -> locationShares.firstOrNull()
+            is ShowLocationMode.Live -> locationShares.firstOrNull { it.userId == mode.senderId }
+        }
+
         return ShowLocationState(
             dialogState = dialogState,
             locationShares = locationShares,
+            focusedLocation = focusedLocation,
             hasLocationPermission = permissionsState.isAnyGranted,
             isTrackMyLocation = isTrackMyLocation,
             isLive = mode is ShowLocationMode.Live,

features/location/impl/src/main/kotlin/io/element/android/features/location/impl/show/ShowLocationState.kt

@@ -9,7 +9,6 @@
 package io.element.android.features.location.impl.show
 
 import io.element.android.features.location.api.Location
-import io.element.android.features.location.api.ShowLocationMode
 import io.element.android.features.location.impl.common.ui.LocationConstraintsDialogState
 import io.element.android.features.location.impl.common.ui.LocationMarkerData
 import io.element.android.libraries.designsystem.components.PinVariant
@@ -22,6 +21,7 @@ data class ShowLocationState(
     val isLive: Boolean,
     val dialogState: LocationConstraintsDialogState,
     val locationShares: ImmutableList<LocationShareItem>,
+    val focusedLocation: LocationShareItem?,
     val hasLocationPermission: Boolean,
     val isTrackMyLocation: Boolean,
     val appName: String,

features/location/impl/src/main/kotlin/io/element/android/features/location/impl/show/ShowLocationStateProvider.kt

@@ -50,6 +50,7 @@ fun aShowLocationState(
     isLive: Boolean = false,
     constraintsDialogState: LocationConstraintsDialogState = LocationConstraintsDialogState.None,
     locationShares: List<LocationShareItem> = listOf(aLocationShareItem(isLive = isLive)),
+    focusedLocation: LocationShareItem? = locationShares.firstOrNull(),
     hasLocationPermission: Boolean = false,
     isTrackMyLocation: Boolean = false,
     appName: String = APP_NAME,
@@ -58,6 +59,7 @@ fun aShowLocationState(
     return ShowLocationState(
         dialogState = constraintsDialogState,
         locationShares = locationShares.toImmutableList(),
+        focusedLocation = focusedLocation,
         hasLocationPermission = hasLocationPermission,
         isTrackMyLocation = isTrackMyLocation,
         appName = appName,

features/location/impl/src/main/kotlin/io/element/android/features/location/impl/show/ShowLocationView.kt

@@ -22,8 +22,11 @@ import androidx.compose.material3.rememberBottomSheetScaffoldState
 import androidx.compose.material3.rememberStandardBottomSheetState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
@@ -67,25 +70,25 @@ fun ShowLocationView(
         onDismiss = { state.eventSink(ShowLocationEvent.DismissDialog) },
     )
 
-    val initialPosition = remember {
-        if (state.locationShares.isEmpty()) {
-            MapDefaults.defaultCameraPosition
-        } else {
-            val firstLocation = state.locationShares.first().location
-            CameraPosition(
-                target = Position(latitude = firstLocation.lat, longitude = firstLocation.lon),
+    val cameraState = rememberCameraState(firstPosition = MapDefaults.defaultCameraPosition)
+    var hasAnimatedToFocusedLocation by remember { mutableStateOf(false) }
+    LaunchedEffect(state.focusedLocation) {
+        if (state.focusedLocation != null && !hasAnimatedToFocusedLocation) {
+            hasAnimatedToFocusedLocation = true
+            val position = CameraPosition(
+                target = Position(latitude = state.focusedLocation.location.lat, longitude = state.focusedLocation.location.lon),
                 zoom = MapDefaults.DEFAULT_ZOOM
             )
+            cameraState.position = position
         }
     }
-    val cameraState = rememberCameraState(firstPosition = initialPosition)
-    val userLocationState = rememberUserLocationState(state.hasLocationPermission)
     LaunchedEffect(cameraState.isCameraMoving) {
         if (cameraState.moveReason == CameraMoveReason.GESTURE) {
             state.eventSink(ShowLocationEvent.TrackMyLocation(false))
         }
     }
 
+    val userLocationState = rememberUserLocationState(state.hasLocationPermission)
     val scaffoldState = rememberBottomSheetScaffoldState(
         bottomSheetState = rememberStandardBottomSheetState(
             initialValue =

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/MessagesFlowNode.kt

@@ -571,7 +571,7 @@ class MessagesFlowNode(
             }
             is TimelineItemLocationContent -> {
                 val mode = when(event.content.mode){
-                    is TimelineItemLocationContent.Mode.Live -> ShowLocationMode.Live
+                    is TimelineItemLocationContent.Mode.Live -> ShowLocationMode.Live(event.senderId)
                     is TimelineItemLocationContent.Mode.Static -> ShowLocationMode.Static(
                         location = event.content.mode.location,
                         senderName = event.safeSenderName,