From 39498e4b252280fe7f8d3a1ad2bc45b0c830371a Mon Sep 17 00:00:00 2001
From: Pavel Reznikov <pashka.reznikov@gmail.com>
Date: Sun, 8 Mar 2015 22:43:02 -0700
Subject: [PATCH] update gridstack

---
 gridstack.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/gridstack.js b/gridstack.js
index 66dcfc6..59b0c78 100644
--- a/gridstack.js
+++ b/gridstack.js
@@ -107,6 +107,14 @@
         }
     };
 
+    GridStackEngine.prototype.is_area_empty = function (x, y, width, height) {
+        var nn = {x: x || 0, y: y || 0, width: width || 1, height: height || 1};
+        var collision_node = _.find(this.nodes, function (n) {
+            return Utils.is_intercepted(n, nn);
+        }, this);
+        return collision_node == null;
+    };
+
     GridStackEngine.prototype._sort_nodes = function (dir) {
         this.nodes = Utils.sort(this.nodes, dir, this.width);
     };
@@ -831,6 +839,10 @@
         this._update_container_height()
     };
 
+    GridStack.prototype.is_area_empty = function (x, y, width, height) {
+        return this.grid.is_area_empty(x, y, width, height);
+    };
+
     scope.GridStackUI = GridStack;
 
     scope.GridStackUI.Utils = Utils;