Image map fixes and improvements. Fixed state chart subscription.

@@ -314,7 +314,7 @@ export class DatasourceSubscription {
                       });
                     stateDataReceived = true;
                   } else {
-                    firstStateData = data;
+                    firstStateData = subscriptionUpdate;
                   }
                 } else {
                   if (subsTw.aggregation.stateData && !stateDataReceived) {

@@ -33,6 +33,7 @@ import { filter } from 'rxjs/operators';
 import { Polyline } from './polyline';
 import { Polygon } from './polygon';
 import { createTooltip, safeExecute } from '@home/components/widget/lib/maps/maps-utils';
+import { WidgetContext } from '@home/models/widget-component.models';
 
 export default abstract class LeafletMap {
 
@@ -49,7 +50,9 @@ export default abstract class LeafletMap {
     points: FeatureGroup;
     markersData: FormattedData[] = [];
 
-    protected constructor(public $container: HTMLElement, options: UnitedMapSettings) {
+    protected constructor(public ctx: WidgetContext,
+                          public $container: HTMLElement,
+                          options: UnitedMapSettings) {
         this.options = options;
     }
 
@@ -341,9 +344,6 @@ export default abstract class LeafletMap {
         });
     }
 
-    setImageAlias(alias: Observable<any>) {
-    }
-
     // Polyline
 
     updatePolylines(polyData: FormattedData[][], data?: FormattedData) {

@@ -165,6 +165,12 @@ export interface HistorySelectSettings {
     buttonColor: string;
 }
 
+export interface MapImage {
+    imageUrl: string;
+    aspect: number;
+    update?: boolean;
+}
+
 export type TripAnimationSettings = {
     showPoints: boolean;
     pointColor: string;

@@ -17,26 +17,18 @@
 import { defaultSettings, hereProviders, MapProviders, providerSets, UnitedMapSettings } from './map-models';
 import LeafletMap from './leaflet-map';
 import {
-    commonMapSettingsSchema,
-    mapPolygonSchema,
-    mapProviderSchema,
-    markerClusteringSettingsSchema,
-    markerClusteringSettingsSchemaLeaflet,
-    routeMapSettingsSchema
+  commonMapSettingsSchema,
+  mapPolygonSchema,
+  mapProviderSchema,
+  markerClusteringSettingsSchema,
+  markerClusteringSettingsSchemaLeaflet,
+  routeMapSettingsSchema
 } from './schemes';
 import { MapWidgetInterface, MapWidgetStaticInterface } from './map-widget.interface';
 import { addCondition, addGroupInfo, addToSchema, initSchema, mergeSchemes } from '@core/schema-utils';
-import { of, Subject } from 'rxjs';
 import { WidgetContext } from '@app/modules/home/models/widget-component.models';
 import { getDefCenterPosition, parseArray, parseData, parseFunction, parseWithTranslation } from './maps-utils';
-import {
-    Datasource,
-    DatasourceType,
-    JsonSettingsSchema,
-    WidgetActionDescriptor,
-    widgetType,
-    DatasourceData
-} from '@shared/models/widget.models';
+import { Datasource, DatasourceData, JsonSettingsSchema, WidgetActionDescriptor } from '@shared/models/widget.models';
 import { EntityId } from '@shared/models/id/entity-id';
 import { AttributeScope, DataKeyType, LatestTelemetry } from '@shared/models/telemetry/telemetry.models';
 import { AttributeService } from '@core/http/attribute.service';
@@ -76,8 +68,7 @@ export class MapWidgetController implements MapWidgetInterface {
             return;
         }
         parseWithTranslation.setTranslate(this.translate);
-        this.map = new MapClass($element, this.settings, this.ctx.$injector);
-        this.map.setImageAlias(this.subscribeForImageAttribute());
+        this.map = new MapClass(this.ctx, $element, this.settings, this.ctx.$injector);
         this.map.saveMarkerLocation = this.setMarkerLocation;
         if (this.settings.draggableMarker) {
             this.map.setDataSources(parseData(this.data));
@@ -263,48 +254,6 @@ export class MapWidgetController implements MapWidgetInterface {
         this.map.onResize();
     }
 
-    subscribeForImageAttribute() {
-        const imageEntityAlias = this.settings.imageEntityAlias;
-        const imageUrlAttribute = this.settings.imageUrlAttribute;
-        if (!imageEntityAlias || !imageUrlAttribute) {
-            return of(false);
-        }
-        const entityAliasId = this.ctx.aliasController.getEntityAliasId(imageEntityAlias);
-        if (!entityAliasId) {
-            return of(false);
-        }
-        const datasources = [
-            {
-                type: DatasourceType.entity,
-                name: imageEntityAlias,
-                aliasName: imageEntityAlias,
-                entityAliasId,
-                dataKeys: [
-                    {
-                        type: DataKeyType.attribute,
-                        name: imageUrlAttribute,
-                        label: imageUrlAttribute,
-                        settings: {},
-                        _hash: Math.random()
-                    }
-                ]
-            }
-        ];
-        const result = new Subject();
-        const imageUrlSubscriptionOptions = {
-            datasources,
-            useDashboardTimewindow: false,
-            type: widgetType.latest,
-            callbacks: {
-                onDataUpdated: (subscription) => {
-                    result.next(subscription?.data[0]?.data[0]);
-                }
-            }
-        };
-        this.ctx.subscriptionApi.createSubscription(imageUrlSubscriptionOptions, true).subscribe(() => { });
-        return result;
-    }
-
     onDestroy() {
     }
 }

@@ -21,6 +21,7 @@ import { UnitedMapSettings } from '../map-models';
 import 'leaflet.gridlayer.googlemutant';
 import { ResourcesService } from '@core/services/resources.service';
 import { Injector } from '@angular/core';
+import { WidgetContext } from '@home/models/widget-component.models';
 
 const gmGlobals: GmGlobal = {};
 
@@ -31,8 +32,8 @@ interface GmGlobal {
 export class GoogleMap extends LeafletMap {
   private resource: ResourcesService;
 
-  constructor($container, options: UnitedMapSettings, private injector: Injector) {
-    super($container, options);
+  constructor(ctx: WidgetContext, $container, options: UnitedMapSettings, private injector: Injector) {
+    super(ctx, $container, options);
     this.resource = injector.get(ResourcesService);
     this.loadGoogle(() => {
       const map = L.map($container, {attributionControl: false}).setView(options?.defaultCenterPosition, options?.defaultZoomLevel);

@@ -17,10 +17,11 @@
 import L from 'leaflet';
 import LeafletMap from '../leaflet-map';
 import { UnitedMapSettings } from '../map-models';
+import { WidgetContext } from '@home/models/widget-component.models';
 
 export class HEREMap extends LeafletMap {
-    constructor($container, options: UnitedMapSettings) {
-        super($container, options);
+    constructor(ctx: WidgetContext, $container, options: UnitedMapSettings) {
+        super(ctx, $container, options);
         const map = L.map($container).setView(options?.defaultCenterPosition, options?.defaultZoomLevel);
         const tileLayer = (L.tileLayer as any).provider(options.mapProviderHere || 'HERE.normalDay', options.credentials);
         tileLayer.addTo(map);

@@ -14,12 +14,16 @@
 /// limitations under the License.
 ///
 
-import L, { LatLngLiteral, LatLngBounds, LatLngTuple } from 'leaflet';
+import L, { LatLngBounds, LatLngLiteral, LatLngTuple } from 'leaflet';
 import LeafletMap from '../leaflet-map';
-import { UnitedMapSettings, PosFuncton } from '../map-models';
-import { Observable } from 'rxjs';
-import { map, filter, switchMap } from 'rxjs/operators';
+import { MapImage, PosFuncton, UnitedMapSettings } from '../map-models';
+import { Observable, ReplaySubject } from 'rxjs';
+import { filter, map, mergeMap } from 'rxjs/operators';
 import { aspectCache, calculateNewPointCoordinate, parseFunction } from '@home/components/widget/lib/maps/maps-utils';
+import { WidgetContext } from '@home/models/widget-component.models';
+import { DataSet, DatasourceType, widgetType } from '@shared/models/widget.models';
+import { DataKeyType } from '@shared/models/telemetry/telemetry.models';
+import { WidgetSubscriptionOptions } from '@core/api/widget-api.models';
 
 const maxZoom = 4;// ?
 
@@ -32,26 +36,96 @@ export class ImageMap extends LeafletMap {
     imageUrl: string;
     posFunction: PosFuncton;
 
-    constructor($container: HTMLElement, options: UnitedMapSettings) {
-        super($container, options);
+    constructor(ctx: WidgetContext, $container: HTMLElement, options: UnitedMapSettings) {
+        super(ctx, $container, options);
         this.posFunction = parseFunction(options.posFunction, ['origXPos', 'origYPos']) as PosFuncton;
-        this.imageUrl = options.mapUrl;
-        aspectCache(this.imageUrl).subscribe(aspect => {
-            this.aspect = aspect;
+        this.mapImage(options).subscribe((mapImage) => {
+          this.imageUrl = mapImage.imageUrl;
+          this.aspect = mapImage.aspect;
+          if (mapImage.update) {
+            this.onResize(true);
+          } else {
             this.onResize();
             super.setMap(this.map);
             super.initSettings(options);
+          }
         });
     }
 
-    setImageAlias(alias: Observable<any>) {
-        alias.pipe(filter(result => result), map(el => el[1]), switchMap(res => {
-            this.imageUrl = res;
-            return aspectCache(res);
-        })).subscribe(aspect => {
-            this.aspect = aspect;
-            this.onResize(true);
-        });
+    private mapImage(options: UnitedMapSettings): Observable<MapImage> {
+      const imageEntityAlias = options.imageEntityAlias;
+      const imageUrlAttribute = options.imageUrlAttribute;
+      if (!imageEntityAlias || !imageUrlAttribute) {
+        return this.imageFromUrl(options.mapUrl);
+      }
+      const entityAliasId = this.ctx.aliasController.getEntityAliasId(imageEntityAlias);
+      if (!entityAliasId) {
+        return this.imageFromUrl(options.mapUrl);
+      }
+      const datasources = [
+        {
+          type: DatasourceType.entity,
+          name: imageEntityAlias,
+          aliasName: imageEntityAlias,
+          entityAliasId,
+          dataKeys: [
+            {
+              type: DataKeyType.attribute,
+              name: imageUrlAttribute,
+              label: imageUrlAttribute,
+              settings: {},
+              _hash: Math.random()
+            }
+          ]
+        }
+      ];
+      const result = new ReplaySubject<[DataSet, boolean]>();
+      let isUpdate = false;
+      const imageUrlSubscriptionOptions: WidgetSubscriptionOptions = {
+        datasources,
+        useDashboardTimewindow: false,
+        type: widgetType.latest,
+        callbacks: {
+          onDataUpdated: (subscription) => {
+            result.next([subscription.data[0]?.data, isUpdate]);
+            isUpdate = true;
+          }
+        }
+      };
+      this.ctx.subscriptionApi.createSubscription(imageUrlSubscriptionOptions, true).subscribe(() => { });
+      return this.imageFromAlias(result);
+    }
+
+    private imageFromUrl(url: string): Observable<MapImage> {
+      return aspectCache(url).pipe(
+        map( aspect => {
+            const mapImage: MapImage = {
+              imageUrl: url,
+              aspect,
+              update: false
+            };
+            return mapImage;
+          }
+        ));
+    }
+
+    private imageFromAlias(alias: Observable<[DataSet, boolean]>): Observable<MapImage> {
+      return alias.pipe(
+        filter(result => result[0].length > 0),
+        mergeMap(res => {
+          const mapImage: MapImage = {
+            imageUrl: res[0][0][1],
+            aspect: null,
+            update: res[1]
+          };
+          return aspectCache(mapImage.imageUrl).pipe(
+            map((aspect) => {
+                mapImage.aspect = aspect;
+                return mapImage;
+              }
+            ));
+        })
+      );
     }
 
     updateBounds(updateImage?: boolean, lastCenterPos?) {

@@ -17,10 +17,11 @@
 import L from 'leaflet';
 import LeafletMap from '../leaflet-map';
 import { UnitedMapSettings } from '../map-models';
+import { WidgetContext } from '@home/models/widget-component.models';
 
 export class OpenStreetMap extends LeafletMap {
-    constructor($container, options: UnitedMapSettings) {
-        super($container, options);
+    constructor(ctx: WidgetContext, $container, options: UnitedMapSettings) {
+        super(ctx, $container, options);
         const map = L.map($container).setView(options?.defaultCenterPosition, options?.defaultZoomLevel);
         let tileLayer;
         if (options.useCustomProvider)

@@ -18,10 +18,11 @@
 import L from 'leaflet';
 import LeafletMap from '../leaflet-map';
 import { UnitedMapSettings } from '../map-models';
+import { WidgetContext } from '@home/models/widget-component.models';
 
 export class TencentMap extends LeafletMap {
-  constructor($container, options: UnitedMapSettings) {
-    super($container, options);
+  constructor(ctx: WidgetContext, $container, options: UnitedMapSettings) {
+    super(ctx, $container, options);
     const txUrl = 'http://rt{s}.map.gtimg.com/realtimerender?z={z}&x={x}&y={y}&type=vector&style=0';
     const map = L.map($container).setView(options?.defaultCenterPosition, options?.defaultZoomLevel);
     const txLayer = L.tileLayer(txUrl, {