Retrieve map style url from .well-known

changelog.d/5175.feature

@@ -0,0 +1 @@
+Retrieve map style url from .well-known

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

@@ -54,8 +54,11 @@ class LocationPreviewFragment @Inject constructor(
 
         mapView = WeakReference(views.mapView)
         views.mapView.onCreate(savedInstanceState)
-        views.mapView.initialize(urlMapProvider.mapUrl)
-        loadPinDrawable()
+
+        lifecycleScope.launchWhenCreated {
+            views.mapView.initialize(urlMapProvider.getMapUrl())
+            loadPinDrawable()
+        }
     }
 
     override fun onResume() {

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

@@ -21,6 +21,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.core.view.isGone
+import androidx.lifecycle.lifecycleScope
 import com.airbnb.mvrx.fragmentViewModel
 import com.airbnb.mvrx.withState
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
@@ -53,7 +54,10 @@ class LocationSharingFragment @Inject constructor(
 
         mapView = WeakReference(views.mapView)
         views.mapView.onCreate(savedInstanceState)
-        views.mapView.initialize(urlMapProvider.mapUrl)
+
+        lifecycleScope.launchWhenCreated {
+            views.mapView.initialize(urlMapProvider.getMapUrl())
+        }
 
         views.shareLocationContainer.debouncedClicks {
             viewModel.handle(LocationSharingAction.OnShareLocation)

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

@@ -19,19 +19,31 @@ package im.vector.app.features.location
 import im.vector.app.BuildConfig
 import im.vector.app.core.resources.LocaleProvider
 import im.vector.app.core.resources.isRTL
+import im.vector.app.features.raw.wellknown.getElementWellknown
+import org.matrix.android.sdk.api.extensions.tryOrNull
+import org.matrix.android.sdk.api.raw.RawService
+import org.matrix.android.sdk.api.session.Session
 import javax.inject.Inject
 
 class UrlMapProvider @Inject constructor(
-        private val localeProvider: LocaleProvider
+        private val localeProvider: LocaleProvider,
+        private val session: Session,
+        private val rawService: RawService
 ) {
     private val keyParam = "?key=${BuildConfig.mapTilerKey}"
 
-    // This is static so no need for a fun
-    val mapUrl = buildString {
+    private val fallbackMapUrl = buildString {
         append(MAP_BASE_URL)
         append(keyParam)
     }
 
+    suspend fun getMapUrl(): String {
+        val upstreamMapUrl = tryOrNull { rawService.getElementWellknown(session.sessionParams) }
+                ?.mapTileServerConfig
+                ?.mapStyleUrl
+        return upstreamMapUrl ?: fallbackMapUrl
+    }
+
     fun buildStaticMapUrl(locationData: LocationData,
                           zoom: Double,
                           width: Int,

vector/src/main/java/im/vector/app/features/raw/wellknown/ElementWellKnown.kt

@@ -35,7 +35,10 @@ data class ElementWellKnown(
         val elementE2E: E2EWellKnownConfig? = null,
 
         @Json(name = "im.vector.riot.e2ee")
-        val riotE2E: E2EWellKnownConfig? = null
+        val riotE2E: E2EWellKnownConfig? = null,
+
+        @Json(name = "org.matrix.msc3488.tile_server")
+        val mapTileServerConfig: MapTileServerConfig? = null
 )
 
 @JsonClass(generateAdapter = true)
@@ -53,3 +56,9 @@ data class WellKnownPreferredConfig(
         @Json(name = "preferredDomain")
         val preferredDomain: String? = null
 )
+
+@JsonClass(generateAdapter = true)
+data class MapTileServerConfig(
+        @Json(name = "map_style_url")
+        val mapStyleUrl: String? = null
+)