Updating location target drawable dynamically

vector/src/main/java/im/vector/app/features/location/LocationSharingFragment.kt

@@ -53,7 +53,6 @@ class LocationSharingFragment @Inject constructor(
     private var mapView: WeakReference<MapView>? = null
 
     private var hasRenderedUserAvatar = false
-    private var hasUpdatedPin = false
 
     override fun getBinding(inflater: LayoutInflater, container: ViewGroup?): FragmentLocationSharingBinding {
         return FragmentLocationSharingBinding.inflate(inflater, container, false)
@@ -125,9 +124,8 @@ class LocationSharingFragment @Inject constructor(
     override fun invalidate() = withState(viewModel) { state ->
         updateMap(state)
         updateUserAvatar(state.userItem)
-        if (!hasUpdatedPin && state.pinDrawable != null) {
-            hasUpdatedPin = true
-            updateStaticPin(state.pinDrawable)
+        if (state.locationTargetDrawable != null) {
+            updateLocationTargetPin(state.locationTargetDrawable)
         }
         views.shareLocationGpsLoading.isGone = state.lastKnownUserLocation != null
     }
@@ -145,10 +143,8 @@ class LocationSharingFragment @Inject constructor(
 
     private fun initOptionsPicker() {
         // TODO
-        //  create a useCase to compare 2 locations
-        //  update options menu dynamically
-        //  move pin creation into the Fragment? => need to ask other's opinions
         //  reset map to user location when clicking on reset icon
+        //  unit tests
         //  need changes in the event sent when this is a pin drop location?
         //  need changes in the parsing of events when receiving pin drop location?: should it be shown with user avatar or with pin?
         // set no option at start
@@ -196,7 +192,7 @@ class LocationSharingFragment @Inject constructor(
                 }
     }
 
-    private fun updateStaticPin(drawable: Drawable) {
+    private fun updateLocationTargetPin(drawable: Drawable) {
         views.shareLocationPin.setImageDrawable(drawable)
     }
 }

vector/src/main/java/im/vector/app/features/location/LocationSharingViewModel.kt

@@ -16,6 +16,7 @@
 
 package im.vector.app.features.location
 
+import android.graphics.drawable.Drawable
 import com.airbnb.mvrx.MavericksViewModelFactory
 import dagger.assisted.Assisted
 import dagger.assisted.AssistedFactory
@@ -60,7 +61,7 @@ class LocationSharingViewModel @AssistedInject constructor(
     init {
         locationTracker.start(this)
         setUserItem()
-        createPin()
+        updatePin()
         compareTargetAndUserLocation()
     }
 
@@ -68,13 +69,23 @@ class LocationSharingViewModel @AssistedInject constructor(
         setState { copy(userItem = session.getUser(session.myUserId)?.toMatrixItem()) }
     }
 
-    private fun createPin() {
-        locationPinProvider.create(session.myUserId) {
-            setState {
-                copy(
-                        pinDrawable = it
-                )
+    private fun updatePin(isUserPin: Boolean? = true) {
+        if (isUserPin == true) {
+            locationPinProvider.create(userId = session.myUserId) {
+                updatePinDrawableInState(it)
             }
+        } else {
+            locationPinProvider.create(userId = null) {
+                updatePinDrawableInState(it)
+            }
+        }
+    }
+
+    private fun updatePinDrawableInState(drawable: Drawable) {
+        setState {
+            copy(
+                    locationTargetDrawable = drawable
+            )
         }
     }
 
@@ -83,8 +94,8 @@ class LocationSharingViewModel @AssistedInject constructor(
                 .sample(TARGET_LOCATION_CHANGE_SAMPLING_PERIOD_IN_MS)
                 .map { compareTargetLocation(it) }
                 .distinctUntilChanged()
-                // TODO change the pin dynamically depending on the current chosen location: cf. LocationPinProvider
                 .onEach { setState { copy(areTargetAndUserLocationEqual = it) } }
+                .onEach { updatePin(isUserPin = it) }
                 .launchIn(viewModelScope)
     }
 

vector/src/main/java/im/vector/app/features/location/LocationSharingViewState.kt

@@ -33,8 +33,7 @@ data class LocationSharingViewState(
         val userItem: MatrixItem.UserItem? = null,
         val areTargetAndUserLocationEqual: Boolean? = null,
         val lastKnownUserLocation: LocationData? = null,
-        // TODO move pin drawable creation into the view?
-        val pinDrawable: Drawable? = null
+        val locationTargetDrawable: Drawable? = null
 ) : MavericksState {
 
     constructor(locationSharingArgs: LocationSharingArgs) : this(
@@ -47,5 +46,5 @@ fun LocationSharingViewState.toMapState() = MapState(
         zoomOnlyOnce = true,
         userLocationData = lastKnownUserLocation,
         pinId = DEFAULT_PIN_ID,
-        pinDrawable = pinDrawable
+        pinDrawable = locationTargetDrawable
 )