Pass layer to forEachFeatureAtPixel callback

src/ol/map.js

@@ -457,7 +457,8 @@ ol.Map.prototype.disposeInternal = function() {
 
 /**
  * @param {ol.Pixel} pixel Pixel.
- * @param {function(this: S, ol.Feature): T} callback Feature callback.
+ * @param {function(this: S, ol.Feature, ol.layer.Layer): T} callback Feature
+ *     callback.
  * @param {S=} opt_obj Scope.
  * @return {T|undefined} Callback result.
  * @template S,T

src/ol/renderer/canvas/canvasvectorlayerrenderer.js

@@ -92,6 +92,7 @@ ol.renderer.canvas.VectorLayer.prototype.forEachFeatureAtPixel =
     goog.asserts.assert(!ol.extent.isEmpty(this.renderedExtent_));
     goog.asserts.assert(!isNaN(this.renderedResolution_));
     var coordinate = this.getMap().getCoordinateFromPixel(pixel);
+    var layer = this.getLayer();
     var renderGeometryFunction = this.getRenderGeometryFunction_();
     goog.asserts.assert(goog.isFunction(renderGeometryFunction));
     return this.replayGroup_.forEachGeometryAtCoordinate(this.renderedExtent_,
@@ -103,7 +104,7 @@ ol.renderer.canvas.VectorLayer.prototype.forEachFeatureAtPixel =
         function(geometry, data) {
           var feature = /** @type {ol.Feature} */ (data);
           goog.asserts.assert(goog.isDef(feature));
-          return callback.call(opt_obj, feature);
+          return callback.call(opt_obj, feature, layer);
         });
   }
 };

src/ol/renderer/layerrenderer.js

@@ -44,7 +44,8 @@ goog.inherits(ol.renderer.Layer, goog.Disposable);
 
 /**
  * @param {ol.Pixel} pixel Pixel.
- * @param {function(this: S, ol.Feature): T} callback Feature callback.
+ * @param {function(this: S, ol.Feature, ol.layer.Layer): T} callback Feature
+ *     callback.
  * @param {S=} opt_obj Scope.
  * @return {T|undefined} Callback result.
  * @template S,T

src/ol/renderer/maprenderer.js

@@ -80,7 +80,8 @@ ol.renderer.Map.prototype.disposeInternal = function() {
 
 /**
  * @param {ol.Pixel} pixel Pixel.
- * @param {function(this: S, ol.Feature): T} callback Feature callback.
+ * @param {function(this: S, ol.Feature, ol.layer.Layer): T} callback Feature
+ *     callback.
  * @param {S=} opt_obj Scope.
  * @return {T|undefined} Callback result.
  * @template S,T