Extended map to support geo location entities (#2337)

* initial version of geo location map

* configuring entities not required but source is

* extending existing map instead of adding a new one

* renamed source to geo_location_source; clearer handling of geo location entities vs defined entities

* geo location sources must now be an array

* code cleanup

src/panels/lovelace/cards/hui-map-card.js

@@ -111,8 +111,24 @@ class HuiMapCard extends PolymerElement {
       throw new Error("Error in card configuration.");
     }
 
-    this._configEntities = processConfigEntities(config.entities);
+    if (!config.entities && !config.geo_location_sources) {
+      throw new Error(
+        "Either entities or geo_location_sources must be defined"
+      );
+    }
+    if (config.entities && !Array.isArray(config.entities)) {
+      throw new Error("Entities need to be an array");
+    }
+    if (
+      config.geo_location_sources &&
+      !Array.isArray(config.geo_location_sources)
+    ) {
+      throw new Error("Geo_location_sources needs to be an array");
+    }
+
     this._config = config;
+    this._configGeoLocationSources = config.geo_location_sources;
+    this._configEntities = config.entities;
   }
 
   getCardSize() {
@@ -205,7 +221,24 @@ class HuiMapCard extends PolymerElement {
     }
     const mapItems = (this._mapItems = []);
 
-    this._configEntities.forEach((entity) => {
+    let allEntities = [];
+    if (this._configEntities) {
+      allEntities = allEntities.concat(this._configEntities);
+    }
+    if (this._configGeoLocationSources) {
+      Object.keys(this.hass.states).forEach((entityId) => {
+        const stateObj = this.hass.states[entityId];
+        if (
+          computeStateDomain(stateObj) === "geo_location" &&
+          this._configGeoLocationSources.includes(stateObj.attributes.source)
+        ) {
+          allEntities.push(entityId);
+        }
+      });
+    }
+    allEntities = processConfigEntities(allEntities);
+
+    allEntities.forEach((entity) => {
       const entityId = entity.entity;
       if (!(entityId in hass.states)) {
         return;