Add findElementAt method to domElement

lib/configuration/structure/domElement.js

@@ -218,6 +218,41 @@ var DomElement = Base.extend(
 			} else {
 				return result;
 			}
+		},
+
+		/**
+		 * Finds a DOM-element at an absolute coordinate
+		 *
+		 * @method findElementAt
+		 * @param {int} x X-coordinate
+		 * @param {int} y Y-coordinate
+		 */
+		findElementAt: function (x, y) {
+
+			var nodes,
+				result,
+				i;
+
+			if (this.getRect().inBounds(x, y)) {
+				return this;
+
+			} else {
+				nodes = this.getNodes();
+
+				if (nodes) {
+
+					// Travers from the back so that overlapping elements will be selected first
+					for (i = nodes.length; i >= 0; i--) {
+						result = nodes[i].findElementAt(x, y);
+
+						if (result) {
+							return result;
+						}
+					}
+				}
+
+				return null;
+			}
 		}
 	},
 
@@ -227,6 +262,6 @@ var DomElement = Base.extend(
 		 * @type {string}
 		 * @static
 		 */
-		TYPE: 'CONFIGURATION_STRUCTURE_DOMELEMENT'
+		TYPE: 'CONFIGURATION_STRUCTURE_DOM_ELEMENT'
 	}
 );