Implement ol.renderer.Layer#forEachFeatureAtCoordinate

And remove identical implementation in children classes.

src/ol/renderer/canvas/canvasimagelayerrenderer.js

@@ -52,28 +52,6 @@ ol.renderer.canvas.ImageLayer = function(imageLayer) {
 goog.inherits(ol.renderer.canvas.ImageLayer, ol.renderer.canvas.Layer);
 
 
-/**
- * @inheritDoc
- */
-ol.renderer.canvas.ImageLayer.prototype.forEachFeatureAtCoordinate =
-    function(coordinate, frameState, callback, thisArg) {
-  var layer = this.getLayer();
-  var source = layer.getSource();
-  var resolution = frameState.viewState.resolution;
-  var rotation = frameState.viewState.rotation;
-  var skippedFeatureUids = frameState.skippedFeatureUids;
-  return source.forEachFeatureAtCoordinate(
-      coordinate, resolution, rotation, skippedFeatureUids,
-      /**
-       * @param {ol.Feature} feature Feature.
-       * @return {?} Callback result.
-       */
-      function(feature) {
-        return callback.call(thisArg, feature, layer);
-      });
-};
-
-
 /**
  * @inheritDoc
  */

src/ol/renderer/dom/domimagelayerrenderer.js

@@ -43,28 +43,6 @@ ol.renderer.dom.ImageLayer = function(imageLayer) {
 goog.inherits(ol.renderer.dom.ImageLayer, ol.renderer.dom.Layer);
 
 
-/**
- * @inheritDoc
- */
-ol.renderer.dom.ImageLayer.prototype.forEachFeatureAtCoordinate =
-    function(coordinate, frameState, callback, thisArg) {
-  var layer = this.getLayer();
-  var source = layer.getSource();
-  var resolution = frameState.viewState.resolution;
-  var rotation = frameState.viewState.rotation;
-  var skippedFeatureUids = frameState.skippedFeatureUids;
-  return source.forEachFeatureAtCoordinate(
-      coordinate, resolution, rotation, skippedFeatureUids,
-      /**
-       * @param {ol.Feature} feature Feature.
-       * @return {?} Callback result.
-       */
-      function(feature) {
-        return callback.call(thisArg, feature, layer);
-      });
-};
-
-
 /**
  * @inheritDoc
  */

src/ol/renderer/layerrenderer.js

@@ -48,7 +48,24 @@ goog.inherits(ol.renderer.Layer, ol.Observable);
  * @return {T|undefined} Callback result.
  * @template S,T
  */
-ol.renderer.Layer.prototype.forEachFeatureAtCoordinate = goog.nullFunction;
+ol.renderer.Layer.prototype.forEachFeatureAtCoordinate =
+    function(coordinate, frameState, callback, thisArg) {
+  var layer = this.getLayer();
+  var source = layer.getSource();
+  var resolution = frameState.viewState.resolution;
+  var rotation = frameState.viewState.rotation;
+  var skippedFeatureUids = frameState.skippedFeatureUids;
+  return source.forEachFeatureAtCoordinate(
+      coordinate, resolution, rotation, skippedFeatureUids,
+
+      /**
+       * @param {ol.Feature} feature Feature.
+       * @return {?} Callback result.
+       */
+      function(feature) {
+        return callback.call(thisArg, feature, layer);
+      });
+};
 
 
 /**

src/ol/renderer/webgl/webglimagelayerrenderer.js

@@ -71,29 +71,6 @@ ol.renderer.webgl.ImageLayer.prototype.createTexture_ = function(image) {
 };
 
 
-/**
- * @inheritDoc
- */
-ol.renderer.webgl.ImageLayer.prototype.forEachFeatureAtCoordinate =
-    function(coordinate, frameState, callback, thisArg) {
-  var layer = this.getLayer();
-  var source = layer.getSource();
-  var resolution = frameState.viewState.resolution;
-  var rotation = frameState.viewState.rotation;
-  var skippedFeatureUids = frameState.skippedFeatureUids;
-  return source.forEachFeatureAtCoordinate(
-      coordinate, resolution, rotation, skippedFeatureUids,
-
-      /**
-       * @param {ol.Feature} feature Feature.
-       * @return {?} Callback result.
-       */
-      function(feature) {
-        return callback.call(thisArg, feature, layer);
-      });
-};
-
-
 /**
  * @inheritDoc
  */