add a click handler

src/ol/Map.js

@@ -7,6 +7,7 @@ goog.require('ol.control.Control');
 goog.require('ol.renderer.MapRenderer');
 goog.require('ol.handler.Drag');
 goog.require('ol.handler.MouseWheel');
+goog.require('ol.handler.Click');
 
 goog.require('goog.dom');
 goog.require('goog.math');
@@ -23,6 +24,11 @@ ol.ENABLE_DRAG_HANDLER = true;
  */
 ol.ENABLE_MOUSEWHEEL_HANDLER = true;
 
+/**
+ * @define {boolean} Whether to enable the click handler.
+ */
+ol.ENABLE_CLICK_HANDLER = true;
+
 /**
  * @export
  * @constructor
@@ -529,6 +535,10 @@ ol.Map.prototype.initHandlers = function() {
         handler = new ol.handler.MouseWheel(this, this.viewport_, states);
         this.registerDisposable(handler);
     }
+    if (ol.ENABLE_CLICK_HANDLER) {
+        handler = new ol.handler.Click(this, this.viewport_, states);
+        this.registerDisposable(handler);
+    }
 };
 
 ol.Map.prototype.createRenderer = function() {