ignore layer without geometries listening certain events in Map's GeometryEvents

Author: fuzhenn

src/layer/OverlayLayer.js

@@ -52,6 +52,27 @@ class OverlayLayer extends Layer {
         }
     }
 
+    isGeometryListening(types) {
+        if (!this._geoList) {
+            return false;
+        }
+        if (!Array.isArray(types)) {
+            types = [types];
+        }
+        for (let i = 0, l = this._geoList.length; i < l; i++) {
+            const geometry = this._geoList[i];
+            if (!geometry) {
+                continue;
+            }
+            for (let j = 0; j < types.length; j++) {
+                if (geometry.listens(types[j])) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
     /**
      * Get a geometry by its id
      * @param  {String|Number} id   - id of the geometry

src/map/Map.Topo.js

@@ -106,6 +106,11 @@ Map.include(/** @lends Map.prototype */ {
                 opts.tolerance = opts.tolerance || 0;
                 opts.tolerance += layer.options.geometryEventTolerance;
             }
+            if (layer.isGeometryListening && isMapGeometryEvent && opts.eventTypes.indexOf('mousemove') >= 0) {
+                if (!layer.isGeometryListening(opts.eventTypes)) {
+                    return [];
+                }
+            }
             if (layer.identifyAtPoint) {
                 result = layer.identifyAtPoint(containerPoint, opts);
             } else if (coordinate && layer.identify) {