Adding static pin at the center of the map

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

@@ -123,7 +123,7 @@ class LocationPreviewFragment @Inject constructor(
                 views.mapView.render(
                         MapState(
                                 zoomOnlyOnce = true,
-                                pinLocationData = location,
+                                userLocationData = location,
                                 pinId = args.locationOwnerId ?: DEFAULT_PIN_ID,
                                 pinDrawable = pinDrawable
                         )

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

@@ -16,6 +16,7 @@
 
 package im.vector.app.features.location
 
+import android.graphics.drawable.Drawable
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -52,6 +53,7 @@ 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)
@@ -116,7 +118,11 @@ class LocationSharingFragment @Inject constructor(
     override fun invalidate() = withState(viewModel) { state ->
         updateMap(state)
         updateUserAvatar(state.userItem)
-        views.shareLocationGpsLoading.isGone = state.lastKnownLocation != null
+        if(!hasUpdatedPin && state.pinDrawable != null) {
+            hasUpdatedPin = true
+            updateStaticPin(state.pinDrawable)
+        }
+        views.shareLocationGpsLoading.isGone = state.lastKnownUserLocation != null
     }
 
     private fun handleLocationNotAvailableError() {
@@ -132,10 +138,14 @@ class LocationSharingFragment @Inject constructor(
 
     private fun initOptionsPicker() {
         // TODO
+        //  move pin creation into the Fragment
+        //  create a useCase to compare pinnedLocation and userLocation
         //  change the pin dynamically depending on the current chosen location: cf. LocationPinProvider
-        //  make the pin stay at the center of the map: selected location is the center of the map
+        //  reset map to user location when clicking on reset icon
         //  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
+        views.shareLocationOptionsPicker.render()
         views.shareLocationOptionsPicker.optionPinned.debouncedClicks {
             // TODO
         }
@@ -148,8 +158,10 @@ class LocationSharingFragment @Inject constructor(
     }
 
     private fun updateMap(state: LocationSharingViewState) {
-        // first update the options view
-        if (state.isUserLocation) {
+        // first, update the options view
+        // TODO compute distance between userLocation and location at center of map
+        val isUserLocation = true
+        if (isUserLocation) {
             // TODO activate USER_LIVE option when implemented
             views.shareLocationOptionsPicker.render(
                     LocationSharingOption.USER_CURRENT
@@ -159,10 +171,13 @@ class LocationSharingFragment @Inject constructor(
                     LocationSharingOption.PINNED
             )
         }
-        val mapState = state
-                .toMapState()
-                .copy(logoMarginBottom = views.shareLocationOptionsPicker.height)
-        views.mapView.render(mapState)
+        // then, update the map using the height of the options view after it has been rendered
+        views.shareLocationOptionsPicker.post {
+            val mapState = state
+                    .toMapState()
+                    .copy(logoMarginBottom = views.shareLocationOptionsPicker.height)
+            views.mapView.render(mapState)
+        }
     }
 
     private fun updateUserAvatar(userItem: MatrixItem.UserItem?) {
@@ -174,4 +189,8 @@ class LocationSharingFragment @Inject constructor(
                     views.shareLocationOptionsPicker.optionUserCurrent.setIconBackgroundTint(tintColor)
                 }
     }
+
+    private fun updateStaticPin(drawable: Drawable) {
+        views.shareLocationPin.setImageDrawable(drawable)
+    }
 }

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

@@ -76,7 +76,7 @@ class LocationSharingViewModel @AssistedInject constructor(
     }
 
     private fun handleShareLocation() = withState { state ->
-        state.lastKnownLocation?.let { location ->
+        state.lastKnownUserLocation?.let { location ->
             room.sendLocation(
                     latitude = location.latitude,
                     longitude = location.longitude,
@@ -90,7 +90,7 @@ class LocationSharingViewModel @AssistedInject constructor(
 
     override fun onLocationUpdate(locationData: LocationData) {
         setState {
-            copy(lastKnownLocation = locationData)
+            copy(lastKnownUserLocation = locationData)
         }
     }
 

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

@@ -30,9 +30,9 @@ enum class LocationSharingMode(@StringRes val titleRes: Int) {
 data class LocationSharingViewState(
         val roomId: String,
         val mode: LocationSharingMode,
-        val isUserLocation: Boolean = false,
         val userItem: MatrixItem.UserItem? = null,
-        val lastKnownLocation: LocationData? = null,
+        val lastKnownUserLocation: LocationData? = null,
+        // TODO move pin drawable creation into the view?
         val pinDrawable: Drawable? = null
 ) : MavericksState {
 
@@ -44,7 +44,7 @@ data class LocationSharingViewState(
 
 fun LocationSharingViewState.toMapState() = MapState(
         zoomOnlyOnce = true,
-        pinLocationData = lastKnownLocation,
+        userLocationData = lastKnownUserLocation,
         pinId = DEFAULT_PIN_ID,
         pinDrawable = pinDrawable
 )

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

@@ -21,7 +21,7 @@ import androidx.annotation.Px
 
 data class MapState(
         val zoomOnlyOnce: Boolean,
-        val pinLocationData: LocationData? = null,
+        val userLocationData: LocationData? = null,
         val pinId: String,
         val pinDrawable: Drawable? = null,
         @Px val logoMarginBottom: Int = 0

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

@@ -70,6 +70,9 @@ class MapTilerMapView @JvmOverloads constructor(
 
         safeMapRefs.map.uiSettings.setLogoMargins(0, 0, 0, state.logoMarginBottom)
 
+        // TODO display a dot pin for userLocation instead of pinDrawable
+        // TODO add reset to user location button
+        // TODO check conflict of rendering with preview location in timeline
         state.pinDrawable?.let { pinDrawable ->
             if (!safeMapRefs.style.isFullyLoaded ||
                     safeMapRefs.style.getImage(state.pinId) == null) {
@@ -77,7 +80,7 @@ class MapTilerMapView @JvmOverloads constructor(
             }
         }
 
-        state.pinLocationData?.let { locationData ->
+        state.userLocationData?.let { locationData ->
             if (!initZoomDone || !state.zoomOnlyOnce) {
                 zoomToLocation(locationData.latitude, locationData.longitude)
                 initZoomDone = true
@@ -100,4 +103,13 @@ class MapTilerMapView @JvmOverloads constructor(
                 .zoom(INITIAL_MAP_ZOOM_IN_PREVIEW)
                 .build()
     }
+
+    fun getLocationOfMapCenter(): LocationData? =
+            mapRefs?.map?.cameraPosition?.target?.let { target ->
+                LocationData(
+                        latitude = target.latitude,
+                        longitude = target.longitude,
+                        uncertainty = null
+                )
+            }
 }

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

@@ -10,12 +10,30 @@
         android:layout_width="0dp"
         android:layout_height="0dp"
         app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
         app:mapbox_renderTextureMode="true"
         tools:background="#4F00" />
 
+    <ImageView
+        android:id="@+id/shareLocationPin"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:contentDescription="@string/a11y_location_share_pin_on_map"
+        app:layout_constraintBottom_toTopOf="@id/shareLocationMapCenter"
+        app:layout_constraintEnd_toEndOf="@id/mapView"
+        app:layout_constraintStart_toStartOf="@id/mapView" />
+
+    <ViewStub
+        android:id="@+id/shareLocationMapCenter"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintBottom_toBottomOf="@id/mapView"
+        app:layout_constraintEnd_toEndOf="@id/mapView"
+        app:layout_constraintStart_toStartOf="@id/mapView"
+        app:layout_constraintTop_toTopOf="@id/mapView" />
+
     <im.vector.app.features.location.option.LocationSharingOptionPickerView
         android:id="@+id/shareLocationOptionsPicker"
         android:layout_width="0dp"

vector/src/main/res/values/strings.xml

@@ -2929,6 +2929,7 @@
     <string name="a11y_static_map_image">Map</string>
     <!-- TODO delete -->
     <string name="location_share" tools:ignore="UnusedResources">Share location</string>
+    <string name="a11y_location_share_pin_on_map">Pin of selected location on map</string>
     <string name="location_share_option_user_current">Share my current location</string>
     <string name="a11y_location_share_option_user_current_icon">Share my current location</string>
     <string name="location_share_option_user_live">Share live location</string>