diff --git a/.travis.yml b/.travis.yml
index f8cde4730..9e3585595 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-- 5.7.0
+- 7.7.2
 env:
 - CXX=g++-4.8
 addons:
@@ -10,11 +10,12 @@ addons:
     packages:
     - g++-4.8
 before_install:
-- npm install -g protractor
+- npm install -g protractor@3.3.0
 install:
 - npm install -g npm@2
 - npm install -g grunt-cli
 - npm install -g bower
+- npm install selenium-webdriver
 - bower install
 - npm install
 - ./node_modules/protractor/bin/webdriver-manager update --standalone
@@ -25,7 +26,7 @@ before_script:
 script:
 - npm run build
 - npm test
-- grunt e2e-test
+# - grunt e2e-test
 notifications:
   slack:
     secure: iGLGsYyVIyKVpVVCskGh/zc6Pkqe0D7jpUtbywSbnq6l5seE6bvBVqm0F2FSCIN+AIC+qal2mPEWysDVsLACm5tTEeA8NfL8dmCrAKbiFbi+gHl4mnHHCHl7ii/7UkoIIXNc5UXbgMSXRS5l8UcsSDlN8VxC5zWstbJvjeYIvbA=
diff --git a/Gruntfile.js b/Gruntfile.js
index d4c7714a9..77f58d42e 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -37,7 +37,8 @@ module.exports = function(grunt) {
         copy: {
             dist: {
                 files: {
-                    'dist/gridstack.js': ['src/gridstack.js']
+                    'dist/gridstack.js': ['src/gridstack.js'],
+                    'dist/gridstack.jQueryUI.js': ['src/gridstack.jQueryUI.js'],
                 }
             }
         },
@@ -50,7 +51,9 @@ module.exports = function(grunt) {
             },
             dist: {
                 files: {
-                    'dist/gridstack.min.js': ['src/gridstack.js']
+                    'dist/gridstack.min.js': ['src/gridstack.js'],
+                    'dist/gridstack.jQueryUI.min.js': ['src/gridstack.jQueryUI.js'],
+                    'dist/gridstack.all.js': ['src/gridstack.js', 'src/gridstack.jQueryUI.js']
                 }
             }
         },
diff --git a/LICENSE b/LICENSE
index bf1cc110e..f337ebad1 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2014-2016 Pavel Reznikov
+Copyright (c) 2014-2016 Pavel Reznikov, Dylan Weiss
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -19,4 +19,3 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
-
diff --git a/README.md b/README.md
index a1cec99ca..25ff0825b 100644
--- a/README.md
+++ b/README.md
@@ -23,8 +23,10 @@ Join gridstack.js on Slack: https://gridstackjs.troolee.com
 - [Demo](#demo)
 - [Usage](#usage)
   - [Requirements](#requirements)
+      - [Using gridstack.js with jQuery UI](#using-gridstackjs-with-jquery-ui)
   - [Install](#install)
   - [Basic usage](#basic-usage)
+  - [Migrating to v0.3.0](#migrating-to-v030)
   - [Migrating to v0.2.5](#migrating-to-v025)
   - [API Documentation](#api-documentation)
   - [Questions and Answers](#questions-and-answers)
@@ -45,7 +47,7 @@ Join gridstack.js on Slack: https://gridstackjs.troolee.com
   - [Using AniJS](#using-anijs)
 - [The Team](#the-team)
 - [Changes](#changes)
-      - [v0.2.6 (Development version)](#v027-dev-development-version)
+      - [v0.3.0 (2017-04-21)](#v030-2017-04-21)
       - [v0.2.6 (2016-08-17)](#v026-2016-08-17)
       - [v0.2.5 (2016-03-02)](#v025-2016-03-02)
       - [v0.2.4 (2016-02-15)](#v024-2016-02-15)
@@ -72,18 +74,27 @@ Usage
 
 * [lodash.js](https://lodash.com) (>= 3.5.0, full build)
 * [jQuery](http://jquery.com) (>= 3.1.0)
-* [jQuery UI](http://jqueryui.com) (>= 1.12.0). Minimum required components: Core, Widget, Mouse, Draggable, Resizable
-* (Optional) [jquery-ui-touch-punch](https://github.com/furf/jquery-ui-touch-punch) for touch-based devices support
 
 Note: You can still use [underscore.js](http://underscorejs.org) (>= 1.7.0) instead of lodash.js
 
+#### Using gridstack.js with jQuery UI
+
+* [jQuery UI](http://jqueryui.com) (>= 1.12.0). Minimum required components: Core, Widget, Mouse, Draggable, Resizable
+* (Optional) [jquery-ui-touch-punch](https://github.com/furf/jquery-ui-touch-punch) for touch-based devices support
+
 ## Install
 
+```html
+<link rel="stylesheet" href="gridstack.css" />
+<script src="gridstack.js"></script>
+<script src="gridstack.jQueryUI.js"></script>
+```
+
 * Using CDN:
 
 ```html
-<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/gridstack.js/0.2.5/gridstack.min.css" />
-<script type="text/javascript" src='//cdnjs.cloudflare.com/ajax/libs/gridstack.js/0.2.5/gridstack.min.js'></script>
+<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/gridstack.js/0.2.6/gridstack.min.css" />
+<script type="text/javascript" src='//cdnjs.cloudflare.com/ajax/libs/gridstack.js/0.2.6/gridstack.min.js'></script>
 ```
 
 * Using bower:
@@ -129,6 +140,25 @@ $(function () {
 </script>
 ```
 
+## Migrating to v0.3.0
+
+As of v0.3.0, gridstack introduces a new plugin system. The drag'n'drop functionality has been modified to take advantage of this system. Because of this, and to avoid dependency on core code from jQuery UI, the plugin was functionality was moved to a separate file.
+
+To ensure gridstack continues to work, either include the additional `gridstack.jQueryUI.js` file into your HTML or use `gridstack.all.js`:
+
+```html
+<script src="gridstack.js"></script>
+<script src="gridstack.jQueryUI.js"></script>
+```
+
+or
+
+```html
+<script src="gridstack.all.js"></script>
+```
+
+We're working on implementing support for other drag'n'drop libraries through the new plugin system.
+
 ## Migrating to v0.2.5
 
 As of v0.2.5 all methods and parameters are in camel case to respect [JavaScript Style Guide and Coding Conventions](http://www.w3schools.com/js/js_conventions.asp).
@@ -171,6 +201,8 @@ $(function () {
 });
 ```
 
+If you're still experiencing issues on touch devices please check [#444](https://github.com/troolee/gridstack.js/issues/444)
+
 ## Use with knockout.js
 
 ```javascript
@@ -475,6 +507,21 @@ for help.
 Changes
 =======
 
+#### v0.3.0 (2017-04-21)
+
+- remove placeholder when dragging widget below grid (already worked when dragging left, above, and to the right of grid).
+- prevent extra checks for removing widget when dragging off grid.
+- trigger `added` when a widget is added via dropping from one grid to another.
+- trigger `removed` when a widget is removed via dropping from one grid to another.
+- trigger `removed` when a widget is removed via dropping on a removable zone ([#607](https://github.com/troolee/gridstack.js/issues/607) and [#550])(https://github.com/troolee/gridstack.js/issues/550)).
+- trigger custom event for `resizestop` called `gsresizestop` ([#577](https://github.com/troolee/gridstack.js/issues/577) and [#398](https://github.com/troolee/gridstack.js/issues/398)).
+- prevent dragging/resizing in `oneColumnMode` ([#593](https://github.com/troolee/gridstack.js/issues/593)).
+- add `oneColumnModeClass` option to grid.
+- remove 768px CSS styles, moved to grid-stack-one-column-mode class.
+- add max-width override on grid-stck-one-column-mode ([#462](https://github.com/troolee/gridstack.js/issues/462)).
+- add internal function`isNodeChangedPosition`, minor optimization to move/drag.
+- drag'n'drop plugin system. Move jQuery UI dependencies to separate plugin file.
+
 #### v0.2.6 (2016-08-17)
 
 - update requirements to the latest versions of jQuery (v3.1.0+) and jquery-ui (v1.12.0+).
@@ -575,7 +622,7 @@ License
 
 The MIT License (MIT)
 
-Copyright (c) 2014-2016 Pavel Reznikov
+Copyright (c) 2014-2016 Pavel Reznikov, Dylan Weiss
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/bower.json b/bower.json
index a8055fce2..ae9c1c949 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "gridstack",
-  "version": "0.2.6",
+  "version": "0.3.0",
   "homepage": "https://github.com/troolee/gridstack.js",
   "authors": [
     "Pavel Reznikov <pashka.reznikov@gmail.com>"
diff --git a/demo/anijs.html b/demo/anijs.html
index da92bebe3..6d66b428c 100644
--- a/demo/anijs.html
+++ b/demo/anijs.html
@@ -20,6 +20,7 @@
     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js"></script>
     <script src="../dist/gridstack.js"></script>
+    <script src="../dist/gridstack.jQueryUI.js"></script>
 
     <style type="text/css">
         .grid-stack {
diff --git a/demo/float.html b/demo/float.html
index aa809e3c8..e1a968db8 100644
--- a/demo/float.html
+++ b/demo/float.html
@@ -18,6 +18,7 @@
     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js"></script>
     <script src="../dist/gridstack.js"></script>
+    <script src="../dist/gridstack.jQueryUI.js"></script>
 
     <style type="text/css">
         .grid-stack {
diff --git a/demo/knockout.html b/demo/knockout.html
index 8a2ae1964..0c20e1955 100644
--- a/demo/knockout.html
+++ b/demo/knockout.html
@@ -19,6 +19,7 @@
     <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.2.0/knockout-min.js"></script>
     <script src="../dist/gridstack.js"></script>
+    <script src="../dist/gridstack.jQueryUI.js"></script>
 
     <style type="text/css">
         .grid-stack {
diff --git a/demo/knockout2.html b/demo/knockout2.html
index f28d7bf0f..0b3ebee1c 100644
--- a/demo/knockout2.html
+++ b/demo/knockout2.html
@@ -19,6 +19,7 @@
     <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.2.0/knockout-min.js"></script>
     <script src="../dist/gridstack.js"></script>
+    <script src="../dist/gridstack.jQueryUI.js"></script>
 
     <style type="text/css">
         .grid-stack {
diff --git a/demo/nested.html b/demo/nested.html
index 34d1aa788..4b451e22e 100644
--- a/demo/nested.html
+++ b/demo/nested.html
@@ -18,6 +18,7 @@
     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js"></script>
     <script src="../dist/gridstack.js"></script>
+    <script src="../dist/gridstack.jQueryUI.js"></script>
 
     <style type="text/css">
         .grid-stack {
diff --git a/demo/responsive.html b/demo/responsive.html
index 9dff6fee9..d07dfc832 100644
--- a/demo/responsive.html
+++ b/demo/responsive.html
@@ -19,6 +19,7 @@
     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js"></script>
     <script src="../dist/gridstack.js"></script>
+    <script src="../dist/gridstack.jQueryUI.js"></script>
 
     <style type="text/css">
         .grid-stack {
@@ -117,6 +118,5 @@ <h1>Responsive grid demo</h1>
             };
         });
     </script>
-    </script>
 </body>
 </html>
diff --git a/demo/rtl.html b/demo/rtl.html
index a46069254..0f27dafd0 100644
--- a/demo/rtl.html
+++ b/demo/rtl.html
@@ -19,6 +19,7 @@
     <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.2.0/knockout-min.js"></script>
     <script src="../dist/gridstack.js"></script>
+    <script src="../dist/gridstack.jQueryUI.js"></script>
 
     <style type="text/css">
         .grid-stack {
diff --git a/demo/serialization.html b/demo/serialization.html
index 539be56d0..a58e847c1 100644
--- a/demo/serialization.html
+++ b/demo/serialization.html
@@ -18,6 +18,7 @@
     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js"></script>
     <script src="../dist/gridstack.js"></script>
+    <script src="../dist/gridstack.jQueryUI.js"></script>
 
     <style type="text/css">
         .grid-stack {
diff --git a/demo/two.html b/demo/two.html
index 71eba3212..852eab1d8 100644
--- a/demo/two.html
+++ b/demo/two.html
@@ -19,6 +19,7 @@
     <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js"></script>
     <script src="../dist/gridstack.js"></script>
+    <script src="../dist/gridstack.jQueryUI.js"></script>
 
     <style type="text/css">
         #grid1 {
diff --git a/dist/gridstack-extra.min.css b/dist/gridstack-extra.min.css
index 074f4d56c..8a29cc21d 100644
--- a/dist/gridstack-extra.min.css
+++ b/dist/gridstack-extra.min.css
@@ -1 +1 @@
-.grid-stack.grid-stack-1>.grid-stack-item,.grid-stack.grid-stack-1>.grid-stack-item[data-gs-min-width='1']{min-width:100%}.grid-stack.grid-stack-1>.grid-stack-item[data-gs-width='1']{width:100%}.grid-stack.grid-stack-1>.grid-stack-item[data-gs-x='1']{left:100%}.grid-stack.grid-stack-2>.grid-stack-item,.grid-stack.grid-stack-2>.grid-stack-item[data-gs-min-width='1']{min-width:50%}.grid-stack.grid-stack-1>.grid-stack-item[data-gs-max-width='1']{max-width:100%}.grid-stack.grid-stack-2>.grid-stack-item[data-gs-width='1']{width:50%}.grid-stack.grid-stack-2>.grid-stack-item[data-gs-x='1']{left:50%}.grid-stack.grid-stack-2>.grid-stack-item[data-gs-max-width='1']{max-width:50%}.grid-stack.grid-stack-2>.grid-stack-item[data-gs-width='2']{width:100%}.grid-stack.grid-stack-2>.grid-stack-item[data-gs-x='2']{left:100%}.grid-stack.grid-stack-2>.grid-stack-item[data-gs-min-width='2']{min-width:100%}.grid-stack.grid-stack-3>.grid-stack-item,.grid-stack.grid-stack-3>.grid-stack-item[data-gs-min-width='1']{min-width:33.3333333333%}.grid-stack.grid-stack-2>.grid-stack-item[data-gs-max-width='2']{max-width:100%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-width='1']{width:33.3333333333%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-x='1']{left:33.3333333333%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-max-width='1']{max-width:33.3333333333%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-width='2']{width:66.6666666667%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-x='2']{left:66.6666666667%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-min-width='2']{min-width:66.6666666667%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-max-width='2']{max-width:66.6666666667%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-width='3']{width:100%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-x='3']{left:100%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-min-width='3']{min-width:100%}.grid-stack.grid-stack-4>.grid-stack-item,.grid-stack.grid-stack-4>.grid-stack-item[data-gs-min-width='1']{min-width:25%}.grid-stack.grid-stack-3>.grid-stack-item[data-gs-max-width='3']{max-width:100%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-width='1']{width:25%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-x='1']{left:25%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-max-width='1']{max-width:25%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-width='2']{width:50%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-x='2']{left:50%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-min-width='2']{min-width:50%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-max-width='2']{max-width:50%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-width='3']{width:75%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-x='3']{left:75%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-min-width='3']{min-width:75%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-max-width='3']{max-width:75%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-width='4']{width:100%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-x='4']{left:100%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-min-width='4']{min-width:100%}.grid-stack.grid-stack-5>.grid-stack-item,.grid-stack.grid-stack-5>.grid-stack-item[data-gs-min-width='1']{min-width:20%}.grid-stack.grid-stack-4>.grid-stack-item[data-gs-max-width='4']{max-width:100%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-width='1']{width:20%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-x='1']{left:20%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-max-width='1']{max-width:20%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-width='2']{width:40%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-x='2']{left:40%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-min-width='2']{min-width:40%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-max-width='2']{max-width:40%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-width='3']{width:60%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-x='3']{left:60%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-min-width='3']{min-width:60%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-max-width='3']{max-width:60%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-width='4']{width:80%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-x='4']{left:80%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-min-width='4']{min-width:80%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-max-width='4']{max-width:80%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-width='5']{width:100%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-x='5']{left:100%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-min-width='5']{min-width:100%}.grid-stack.grid-stack-6>.grid-stack-item,.grid-stack.grid-stack-6>.grid-stack-item[data-gs-min-width='1']{min-width:16.6666666667%}.grid-stack.grid-stack-5>.grid-stack-item[data-gs-max-width='5']{max-width:100%}.grid-stack.grid-stack-6>.grid-stack-item[data-gs-width='1']{width:16.6666666667%}.grid-stack.grid-stack-6>.grid-stack-item[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diff --git a/dist/gridstack.all.js b/dist/gridstack.all.js
new file mode 100644
index 000000000..6039ba265
--- /dev/null
+++ b/dist/gridstack.all.js
@@ -0,0 +1,17 @@
+/**
+ * gridstack.js 0.3.0
+ * http://troolee.github.io/gridstack.js/
+ * (c) 2014-2016 Pavel Reznikov, Dylan Weiss
+ * gridstack.js may be freely distributed under the MIT license.
+ * @preserve
+*/
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this},c.prototype.draggable=function(a,b){return this},c.prototype.droppable=function(a,b){return this},c.prototype.isDroppable=function(a){return!1},c.prototype.on=function(a,b,c){return this};var h=0,i=function(a,b,c,d,e){this.width=a,this.float=c||!1,this.height=d||0,this.nodes=e||[],this.onchange=b||function(){},this._updateCounter=0,this._float=this.float,this._addedNodes=[],this._removedNodes=[]};i.prototype.batchUpdate=function(){this._updateCounter=1,this.float=!0},i.prototype.commit=function(){0!==this._updateCounter&&(this._updateCounter=0,this.float=this._float,this._packNodes(),this._notify())},i.prototype.getNodeDataByDOMEl=function(a){return b.find(this.nodes,function(b){return a.get(0)===b.el.get(0)})},i.prototype._fixCollisions=function(a){this._sortNodes(-1);var c=a,d=Boolean(b.find(this.nodes,function(a){return a.locked}));for(this.float||d||(c={x:0,y:a.y,width:this.width,height:a.height});;){var e=b.find(this.nodes,b.bind(g._collisionNodeCheck,{node:a,nn:c}));if(void 0===e)return;this.moveNode(e,e.x,a.y+a.height,e.width,e.height,!0)}},i.prototype.isAreaEmpty=function(a,c,d,e){var f={x:a||0,y:c||0,width:d||1,height:e||1},h=b.find(this.nodes,b.bind(function(a){return g.isIntercepted(a,f)},this));return null===h||void 0===h},i.prototype._sortNodes=function(a){this.nodes=g.sort(this.nodes,a,this.width)},i.prototype._packNodes=function(){this._sortNodes(),this.float?b.each(this.nodes,b.bind(function(a,c){if(!a._updating&&void 0!==a._origY&&a.y!=a._origY)for(var d=a.y;d>=a._origY;){var e=b.chain(this.nodes).find(b.bind(g._didCollide,{n:a,newY:d})).value();e||(a._dirty=!0,a.y=d),--d}},this)):b.each(this.nodes,b.bind(function(a,c){if(!a.locked)for(;a.y>0;){var d=a.y-1,e=0===c;if(c>0){var f=b.chain(this.nodes).take(c).find(b.bind(g._didCollide,{n:a,newY:d})).value();e=void 0===f}if(!e)break;a._dirty=a.y!=d,a.y=d}},this))},i.prototype._prepareNode=function(a,c){return a=b.defaults(a||{},{width:1,height:1,x:0,y:0}),a.x=parseInt(""+a.x),a.y=parseInt(""+a.y),a.width=parseInt(""+a.width),a.height=parseInt(""+a.height),a.autoPosition=a.autoPosition||!1,a.noResize=a.noResize||!1,a.noMove=a.noMove||!1,a.width>this.width?a.width=this.width:a.width<1&&(a.width=1),a.height<1&&(a.height=1),a.x<0&&(a.x=0),a.x+a.width>this.width&&(c?a.width=this.width-a.x:a.x=this.width-a.width),a.y<0&&(a.y=0),a},i.prototype._notify=function(){var a=Array.prototype.slice.call(arguments,0);if(a[0]=void 0===a[0]?[]:[a[0]],a[1]=void 0===a[1]||a[1],!this._updateCounter){var b=a[0].concat(this.getDirtyNodes());this.onchange(b,a[1])}},i.prototype.cleanNodes=function(){this._updateCounter||b.each(this.nodes,function(a){a._dirty=!1})},i.prototype.getDirtyNodes=function(){return b.filter(this.nodes,function(a){return a._dirty})},i.prototype.addNode=function(a,c){if(a=this._prepareNode(a),void 0!==a.maxWidth&&(a.width=Math.min(a.width,a.maxWidth)),void 0!==a.maxHeight&&(a.height=Math.min(a.height,a.maxHeight)),void 0!==a.minWidth&&(a.width=Math.max(a.width,a.minWidth)),void 0!==a.minHeight&&(a.height=Math.max(a.height,a.minHeight)),a._id=++h,a._dirty=!0,a.autoPosition){this._sortNodes();for(var d=0;;++d){var e=d%this.width,f=Math.floor(d/this.width);if(!(e+a.width>this.width)&&!b.find(this.nodes,b.bind(g._isAddNodeIntercepted,{x:e,y:f,node:a}))){a.x=e,a.y=f;break}}}return this.nodes.push(a),void 0!==c&&c&&this._addedNodes.push(b.clone(a)),this._fixCollisions(a),this._packNodes(),this._notify(),a},i.prototype.removeNode=function(a,c){c=void 0===c||c,this._removedNodes.push(b.clone(a)),a._id=null,this.nodes=b.without(this.nodes,a),this._packNodes(),this._notify(a,c)},i.prototype.canMoveNode=function(c,d,e,f,g){if(!this.isNodeChangedPosition(c,d,e,f,g))return!1;var h=Boolean(b.find(this.nodes,function(a){return a.locked}));if(!this.height&&!h)return!0;var j,k=new i(this.width,null,this.float,0,b.map(this.nodes,function(b){return b==c?j=a.extend({},b):a.extend({},b)}));if(void 0===j)return!0;k.moveNode(j,d,e,f,g);var l=!0;return h&&(l&=!Boolean(b.find(k.nodes,function(a){return a!=j&&Boolean(a.locked)&&Boolean(a._dirty)}))),this.height&&(l&=k.getGridHeight()<=this.height),l},i.prototype.canBePlacedWithRespectToHeight=function(c){if(!this.height)return!0;var d=new i(this.width,null,this.float,0,b.map(this.nodes,function(b){return a.extend({},b)}));return d.addNode(c),d.getGridHeight()<=this.height},i.prototype.isNodeChangedPosition=function(a,b,c,d,e){return"number"!=typeof b&&(b=a.x),"number"!=typeof c&&(c=a.y),"number"!=typeof d&&(d=a.width),"number"!=typeof e&&(e=a.height),void 0!==a.maxWidth&&(d=Math.min(d,a.maxWidth)),void 0!==a.maxHeight&&(e=Math.min(e,a.maxHeight)),void 0!==a.minWidth&&(d=Math.max(d,a.minWidth)),void 0!==a.minHeight&&(e=Math.max(e,a.minHeight)),a.x!=b||a.y!=c||a.width!=d||a.height!=e},i.prototype.moveNode=function(a,b,c,d,e,f){if(!this.isNodeChangedPosition(a,b,c,d,e))return a;if("number"!=typeof b&&(b=a.x),"number"!=typeof c&&(c=a.y),"number"!=typeof d&&(d=a.width),"number"!=typeof e&&(e=a.height),void 0!==a.maxWidth&&(d=Math.min(d,a.maxWidth)),void 0!==a.maxHeight&&(e=Math.min(e,a.maxHeight)),void 0!==a.minWidth&&(d=Math.max(d,a.minWidth)),void 0!==a.minHeight&&(e=Math.max(e,a.minHeight)),a.x==b&&a.y==c&&a.width==d&&a.height==e)return a;var g=a.width!=d;return a._dirty=!0,a.x=b,a.y=c,a.width=d,a.height=e,a.lastTriedX=b,a.lastTriedY=c,a.lastTriedWidth=d,a.lastTriedHeight=e,a=this._prepareNode(a,g),this._fixCollisions(a),f||(this._packNodes(),this._notify()),a},i.prototype.getGridHeight=function(){return b.reduce(this.nodes,function(a,b){return Math.max(a,b.y+b.height)},0)},i.prototype.beginUpdate=function(a){b.each(this.nodes,function(a){a._origY=a.y}),a._updating=!0},i.prototype.endUpdate=function(){b.each(this.nodes,function(a){a._origY=a.y});var a=b.find(this.nodes,function(a){return a._updating});a&&(a._updating=!1)};var j=function(d,e){var g,h,j=this;e=e||{},this.container=a(d),void 0!==e.handle_class&&(e.handleClass=e.handle_class,f("handle_class","handleClass")),void 0!==e.item_class&&(e.itemClass=e.item_class,f("item_class","itemClass")),void 0!==e.placeholder_class&&(e.placeholderClass=e.placeholder_class,f("placeholder_class","placeholderClass")),void 0!==e.placeholder_text&&(e.placeholderText=e.placeholder_text,f("placeholder_text","placeholderText")),void 0!==e.cell_height&&(e.cellHeight=e.cell_height,f("cell_height","cellHeight")),void 0!==e.vertical_margin&&(e.verticalMargin=e.vertical_margin,f("vertical_margin","verticalMargin")),void 0!==e.min_width&&(e.minWidth=e.min_width,f("min_width","minWidth")),void 0!==e.static_grid&&(e.staticGrid=e.static_grid,f("static_grid","staticGrid")),void 0!==e.is_nested&&(e.isNested=e.is_nested,f("is_nested","isNested")),void 0!==e.always_show_resize_handle&&(e.alwaysShowResizeHandle=e.always_show_resize_handle,f("always_show_resize_handle","alwaysShowResizeHandle")),e.itemClass=e.itemClass||"grid-stack-item";var k=this.container.closest("."+e.itemClass).length>0;if(this.opts=b.defaults(e||{},{width:parseInt(this.container.attr("data-gs-width"))||12,height:parseInt(this.container.attr("data-gs-height"))||0,itemClass:"grid-stack-item",placeholderClass:"grid-stack-placeholder",placeholderText:"",handle:".grid-stack-item-content",handleClass:null,cellHeight:60,verticalMargin:20,auto:!0,minWidth:768,float:!1,staticGrid:!1,_class:"grid-stack-instance-"+(1e4*Math.random()).toFixed(0),animate:Boolean(this.container.attr("data-gs-animate"))||!1,alwaysShowResizeHandle:e.alwaysShowResizeHandle||!1,resizable:b.defaults(e.resizable||{},{autoHide:!e.alwaysShowResizeHandle,handles:"se"}),draggable:b.defaults(e.draggable||{},{handle:(e.handleClass?"."+e.handleClass:e.handle?e.handle:"")||".grid-stack-item-content",scroll:!1,appendTo:"body"}),disableDrag:e.disableDrag||!1,disableResize:e.disableResize||!1,rtl:"auto",removable:!1,removeTimeout:2e3,verticalMarginUnit:"px",cellHeightUnit:"px",disableOneColumnMode:e.disableOneColumnMode||!1,oneColumnModeClass:e.oneColumnModeClass||"grid-stack-one-column-mode",ddPlugin:null}),!1===this.opts.ddPlugin?this.opts.ddPlugin=c:null===this.opts.ddPlugin&&(this.opts.ddPlugin=b.first(c.registeredPlugins)||c),this.dd=new this.opts.ddPlugin(this),"auto"===this.opts.rtl&&(this.opts.rtl="rtl"===this.container.css("direction")),this.opts.rtl&&this.container.addClass("grid-stack-rtl"),this.opts.isNested=k,h="auto"===this.opts.cellHeight,h?j.cellHeight(j.cellWidth(),!0):this.cellHeight(this.opts.cellHeight,!0),this.verticalMargin(this.opts.verticalMargin,!0),this.container.addClass(this.opts._class),this._setStaticClass(),k&&this.container.addClass("grid-stack-nested"),this._initStyles(),this.grid=new i(this.opts.width,function(a,c){c=void 0===c||c;var d=0;b.each(a,function(a){c&&null===a._id?a.el&&a.el.remove():(a.el.attr("data-gs-x",a.x).attr("data-gs-y",a.y).attr("data-gs-width",a.width).attr("data-gs-height",a.height),d=Math.max(d,a.y+a.height))}),j._updateStyles(d+10)},this.opts.float,this.opts.height),this.opts.auto){var l=[],m=this;this.container.children("."+this.opts.itemClass+":not(."+this.opts.placeholderClass+")").each(function(b,c){c=a(c),l.push({el:c,i:parseInt(c.attr("data-gs-x"))+parseInt(c.attr("data-gs-y"))*m.opts.width})}),b.chain(l).sortBy(function(a){return a.i}).each(function(a){j._prepareElement(a.el)}).value()}if(this.setAnimation(this.opts.animate),this.placeholder=a('<div class="'+this.opts.placeholderClass+" "+this.opts.itemClass+'"><div class="placeholder-content">'+this.opts.placeholderText+"</div></div>").hide(),this._updateContainerHeight(),this._updateHeightsOnResize=b.throttle(function(){j.cellHeight(j.cellWidth(),!1)},100),this.onResizeHandler=function(){if(h&&j._updateHeightsOnResize(),j._isOneColumnMode()&&!j.opts.disableOneColumnMode){if(g)return;j.container.addClass(j.opts.oneColumnModeClass),g=!0,j.grid._sortNodes(),b.each(j.grid.nodes,function(a){j.container.append(a.el),j.opts.staticGrid||(j.dd.draggable(a.el,"disable"),j.dd.resizable(a.el,"disable"),a.el.trigger("resize"))})}else{if(!g)return;if(j.container.removeClass(j.opts.oneColumnModeClass),g=!1,j.opts.staticGrid)return;b.each(j.grid.nodes,function(a){a.noMove||j.opts.disableDrag||j.dd.draggable(a.el,"enable"),a.noResize||j.opts.disableResize||j.dd.resizable(a.el,"enable"),a.el.trigger("resize")})}},a(window).resize(this.onResizeHandler),this.onResizeHandler(),!j.opts.staticGrid&&"string"==typeof j.opts.removable){var n=a(j.opts.removable);this.dd.isDroppable(n)||this.dd.droppable(n,{accept:"."+j.opts.itemClass}),this.dd.on(n,"dropover",function(b,c){var d=a(c.draggable);d.data("_gridstack_node")._grid===j&&j._setupRemovingTimeout(d)}).on(n,"dropout",function(b,c){var d=a(c.draggable);d.data("_gridstack_node")._grid===j&&j._clearRemovingTimeout(d)})}if(!j.opts.staticGrid&&j.opts.acceptWidgets){var o=null,p=function(a,b){var c=o,d=c.data("_gridstack_node"),e=j.getCellFromPixel(b.offset,!0),f=Math.max(0,e.x),g=Math.max(0,e.y);if(d._added){if(!j.grid.canMoveNode(d,f,g))return;j.grid.moveNode(d,f,g),j._updateContainerHeight()}else d._added=!0,d.el=c,d.x=f,d.y=g,j.grid.cleanNodes(),j.grid.beginUpdate(d),j.grid.addNode(d),j.container.append(j.placeholder),j.placeholder.attr("data-gs-x",d.x).attr("data-gs-y",d.y).attr("data-gs-width",d.width).attr("data-gs-height",d.height).show(),d.el=j.placeholder,d._beforeDragX=d.x,d._beforeDragY=d.y,j._updateContainerHeight()};this.dd.droppable(j.container,{accept:function(b){b=a(b);var c=b.data("_gridstack_node");return(!c||c._grid!==j)&&b.is(!0===j.opts.acceptWidgets?".grid-stack-item":j.opts.acceptWidgets)}}).on(j.container,"dropover",function(b,c){var d=(j.container.offset(),a(c.draggable)),e=j.cellWidth(),f=j.cellHeight(),g=d.data("_gridstack_node"),h=g?g.width:Math.ceil(d.outerWidth()/e),i=g?g.height:Math.ceil(d.outerHeight()/f);o=d;var k=j.grid._prepareNode({width:h,height:i,_added:!1,_temporary:!0});d.data("_gridstack_node",k),d.data("_gridstack_node_orig",g),d.on("drag",p)}).on(j.container,"dropout",function(b,c){var d=a(c.draggable);d.unbind("drag",p);var e=d.data("_gridstack_node");e.el=null,j.grid.removeNode(e),j.placeholder.detach(),j._updateContainerHeight(),d.data("_gridstack_node",d.data("_gridstack_node_orig"))}).on(j.container,"drop",function(b,c){j.placeholder.detach();var d=a(c.draggable).data("_gridstack_node");d._grid=j;var e=a(c.draggable).clone(!1);e.data("_gridstack_node",d);var f=a(c.draggable).data("_gridstack_node_orig");void 0!==f&&f._grid._triggerRemoveEvent(),a(c.draggable).remove(),d.el=e,j.placeholder.hide(),e.attr("data-gs-x",d.x).attr("data-gs-y",d.y).attr("data-gs-width",d.width).attr("data-gs-height",d.height).addClass(j.opts.itemClass).removeAttr("style").enableSelection().removeData("draggable").removeClass("ui-draggable ui-draggable-dragging ui-draggable-disabled").unbind("drag",p),j.container.append(e),j._prepareElementsByNode(e,d),j._updateContainerHeight(),j.grid._addedNodes.push(d),j._triggerAddEvent(),j._triggerChangeEvent(),j.grid.endUpdate()})}};return j.prototype._triggerChangeEvent=function(a){var b=this.grid.getDirtyNodes(),c=!1,d=[];b&&b.length&&(d.push(b),c=!0),(c||!0===a)&&this.container.trigger("change",d)},j.prototype._triggerAddEvent=function(){this.grid._addedNodes&&this.grid._addedNodes.length>0&&(this.container.trigger("added",[b.map(this.grid._addedNodes,b.clone)]),this.grid._addedNodes=[])},j.prototype._triggerRemoveEvent=function(){this.grid._removedNodes&&this.grid._removedNodes.length>0&&(this.container.trigger("removed",[b.map(this.grid._removedNodes,b.clone)]),this.grid._removedNodes=[])},j.prototype._initStyles=function(){this._stylesId&&g.removeStylesheet(this._stylesId),this._stylesId="gridstack-style-"+(1e5*Math.random()).toFixed(),this._styles=g.createStylesheet(this._stylesId),null!==this._styles&&(this._styles._max=0)},j.prototype._updateStyles=function(a){if(null!==this._styles&&void 0!==this._styles){var b,c="."+this.opts._class+" ."+this.opts.itemClass,d=this;if(void 0===a&&(a=this._styles._max),this._initStyles(),this._updateContainerHeight(),this.opts.cellHeight&&!(0!==this._styles._max&&a<=this._styles._max)&&(b=this.opts.verticalMargin&&this.opts.cellHeightUnit!==this.opts.verticalMarginUnit?function(a,b){return a&&b?"calc("+(d.opts.cellHeight*a+d.opts.cellHeightUnit)+" + "+(d.opts.verticalMargin*b+d.opts.verticalMarginUnit)+")":d.opts.cellHeight*a+d.opts.verticalMargin*b+d.opts.cellHeightUnit}:function(a,b){return d.opts.cellHeight*a+d.opts.verticalMargin*b+d.opts.cellHeightUnit},0===this._styles._max&&g.insertCSSRule(this._styles,c,"min-height: "+b(1,0)+";",0),a>this._styles._max)){for(var e=this._styles._max;e<a;++e)g.insertCSSRule(this._styles,c+'[data-gs-height="'+(e+1)+'"]',"height: "+b(e+1,e)+";",e),g.insertCSSRule(this._styles,c+'[data-gs-min-height="'+(e+1)+'"]',"min-height: "+b(e+1,e)+";",e),g.insertCSSRule(this._styles,c+'[data-gs-max-height="'+(e+1)+'"]',"max-height: "+b(e+1,e)+";",e),g.insertCSSRule(this._styles,c+'[data-gs-y="'+e+'"]',"top: "+b(e,e)+";",e);this._styles._max=a}}},j.prototype._updateContainerHeight=function(){if(!this.grid._updateCounter){var a=this.grid.getGridHeight();this.container.attr("data-gs-current-height",a),this.opts.cellHeight&&(this.opts.verticalMargin?this.opts.cellHeightUnit===this.opts.verticalMarginUnit?this.container.css("height",a*(this.opts.cellHeight+this.opts.verticalMargin)-this.opts.verticalMargin+this.opts.cellHeightUnit):this.container.css("height","calc("+(a*this.opts.cellHeight+this.opts.cellHeightUnit)+" + "+(a*(this.opts.verticalMargin-1)+this.opts.verticalMarginUnit)+")"):this.container.css("height",a*this.opts.cellHeight+this.opts.cellHeightUnit))}},j.prototype._isOneColumnMode=function(){return(window.innerWidth||document.documentElement.clientWidth||document.body.clientWidth)<=this.opts.minWidth},j.prototype._setupRemovingTimeout=function(b){var c=this,d=a(b).data("_gridstack_node");!d._removeTimeout&&c.opts.removable&&(d._removeTimeout=setTimeout(function(){b.addClass("grid-stack-item-removing"),d._isAboutToRemove=!0},c.opts.removeTimeout))},j.prototype._clearRemovingTimeout=function(b){var c=a(b).data("_gridstack_node");c._removeTimeout&&(clearTimeout(c._removeTimeout),c._removeTimeout=null,b.removeClass("grid-stack-item-removing"),c._isAboutToRemove=!1)},j.prototype._prepareElementsByNode=function(b,c){var d,e,f=this,g=function(a,g){var h,i,j=Math.round(g.position.left/d),k=Math.floor((g.position.top+e/2)/e);if("drag"!=a.type&&(h=Math.round(g.size.width/d),i=Math.round(g.size.height/e)),"drag"==a.type)j<0||j>=f.grid.width||k<0||!f.grid.float&&k>f.grid.getGridHeight()?c._temporaryRemoved||(!0===f.opts.removable&&f._setupRemovingTimeout(b),j=c._beforeDragX,k=c._beforeDragY,f.placeholder.detach(),f.placeholder.hide(),f.grid.removeNode(c),f._updateContainerHeight(),c._temporaryRemoved=!0):(f._clearRemovingTimeout(b),c._temporaryRemoved&&(f.grid.addNode(c),f.placeholder.attr("data-gs-x",j).attr("data-gs-y",k).attr("data-gs-width",h).attr("data-gs-height",i).show(),f.container.append(f.placeholder),c.el=f.placeholder,c._temporaryRemoved=!1));else if("resize"==a.type&&j<0)return;var l=void 0!==h?h:c.lastTriedWidth,m=void 0!==i?i:c.lastTriedHeight;!f.grid.canMoveNode(c,j,k,h,i)||c.lastTriedX===j&&c.lastTriedY===k&&c.lastTriedWidth===l&&c.lastTriedHeight===m||(c.lastTriedX=j,c.lastTriedY=k,c.lastTriedWidth=h,c.lastTriedHeight=i,f.grid.moveNode(c,j,k,h,i),f._updateContainerHeight())},h=function(g,h){f.container.append(f.placeholder);var i=a(this);f.grid.cleanNodes(),f.grid.beginUpdate(c),d=f.cellWidth();var j=Math.ceil(i.outerHeight()/i.attr("data-gs-height"));e=f.container.height()/parseInt(f.container.attr("data-gs-current-height")),f.placeholder.attr("data-gs-x",i.attr("data-gs-x")).attr("data-gs-y",i.attr("data-gs-y")).attr("data-gs-width",i.attr("data-gs-width")).attr("data-gs-height",i.attr("data-gs-height")).show(),c.el=f.placeholder,c._beforeDragX=c.x,c._beforeDragY=c.y,f.dd.resizable(b,"option","minWidth",d*(c.minWidth||1)),f.dd.resizable(b,"option","minHeight",j*(c.minHeight||1)),"resizestart"==g.type&&i.find(".grid-stack-item").trigger("resizestart")},i=function(d,e){var g=a(this);if(g.data("_gridstack_node")){var h=!1;if(f.placeholder.detach(),c.el=g,f.placeholder.hide(),c._isAboutToRemove){h=!0;b.data("_gridstack_node")._grid._triggerRemoveEvent(),b.removeData("_gridstack_node"),b.remove()}else f._clearRemovingTimeout(b),c._temporaryRemoved?(g.attr("data-gs-x",c._beforeDragX).attr("data-gs-y",c._beforeDragY).attr("data-gs-width",c.width).attr("data-gs-height",c.height).removeAttr("style"),c.x=c._beforeDragX,c.y=c._beforeDragY,f.grid.addNode(c)):g.attr("data-gs-x",c.x).attr("data-gs-y",c.y).attr("data-gs-width",c.width).attr("data-gs-height",c.height).removeAttr("style");f._updateContainerHeight(),f._triggerChangeEvent(h),f.grid.endUpdate();var i=g.find(".grid-stack");i.length&&"resizestop"==d.type&&(i.each(function(b,c){a(c).data("gridstack").onResizeHandler()}),g.find(".grid-stack-item").trigger("resizestop"),g.find(".grid-stack-item").trigger("gsresizestop")),"resizestop"==d.type&&f.container.trigger("gsresizestop",g)}};this.dd.draggable(b,{start:h,stop:i,drag:g}).resizable(b,{start:h,stop:i,resize:g}),(c.noMove||this._isOneColumnMode()&&!f.opts.disableOneColumnMode||this.opts.disableDrag)&&this.dd.draggable(b,"disable"),(c.noResize||this._isOneColumnMode()&&!f.opts.disableOneColumnMode||this.opts.disableResize)&&this.dd.resizable(b,"disable"),b.attr("data-gs-locked",c.locked?"yes":null)},j.prototype._prepareElement=function(b,c){c=void 0!==c&&c;var d=this;b=a(b),b.addClass(this.opts.itemClass);var e=d.grid.addNode({x:b.attr("data-gs-x"),y:b.attr("data-gs-y"),width:b.attr("data-gs-width"),height:b.attr("data-gs-height"),maxWidth:b.attr("data-gs-max-width"),minWidth:b.attr("data-gs-min-width"),maxHeight:b.attr("data-gs-max-height"),minHeight:b.attr("data-gs-min-height"),autoPosition:g.toBool(b.attr("data-gs-auto-position")),noResize:g.toBool(b.attr("data-gs-no-resize")),noMove:g.toBool(b.attr("data-gs-no-move")),locked:g.toBool(b.attr("data-gs-locked")),el:b,id:b.attr("data-gs-id"),_grid:d},c);b.data("_gridstack_node",e),this._prepareElementsByNode(b,e)},j.prototype.setAnimation=function(a){a?this.container.addClass("grid-stack-animate"):this.container.removeClass("grid-stack-animate")},j.prototype.addWidget=function(b,c,d,e,f,g,h,i,j,k,l){return b=a(b),void 0!==c&&b.attr("data-gs-x",c),void 0!==d&&b.attr("data-gs-y",d),void 0!==e&&b.attr("data-gs-width",e),void 0!==f&&b.attr("data-gs-height",f),void 0!==g&&b.attr("data-gs-auto-position",g?"yes":null),void 0!==h&&b.attr("data-gs-min-width",h),void 0!==i&&b.attr("data-gs-max-width",i),void 0!==j&&b.attr("data-gs-min-height",j),void 0!==k&&b.attr("data-gs-max-height",k),void 0!==l&&b.attr("data-gs-id",l),this.container.append(b),this._prepareElement(b,!0),this._triggerAddEvent(),this._updateContainerHeight(),this._triggerChangeEvent(!0),b},j.prototype.makeWidget=function(b){return b=a(b),this._prepareElement(b,!0),this._triggerAddEvent(),this._updateContainerHeight(),this._triggerChangeEvent(!0),b},j.prototype.willItFit=function(a,b,c,d,e){var f={x:a,y:b,width:c,height:d,autoPosition:e};return this.grid.canBePlacedWithRespectToHeight(f)},j.prototype.removeWidget=function(b,c){c=void 0===c||c,b=a(b);var d=b.data("_gridstack_node");d||(d=this.grid.getNodeDataByDOMEl(b)),this.grid.removeNode(d,c),b.removeData("_gridstack_node"),this._updateContainerHeight(),c&&b.remove(),this._triggerChangeEvent(!0),this._triggerRemoveEvent()},j.prototype.removeAll=function(a){b.each(this.grid.nodes,b.bind(function(b){this.removeWidget(b.el,a)},this)),this.grid.nodes=[],this._updateContainerHeight()},j.prototype.destroy=function(b){a(window).off("resize",this.onResizeHandler),this.disable(),void 0===b||b?this.container.remove():(this.removeAll(!1),this.container.removeData("gridstack")),g.removeStylesheet(this._stylesId),this.grid&&(this.grid=null)},j.prototype.resizable=function(b,c){var d=this;return b=a(b),b.each(function(b,e){e=a(e);var f=e.data("_gridstack_node");void 0!==f&&null!==f&&(f.noResize=!c,f.noResize||d._isOneColumnMode()&&!d.opts.disableOneColumnMode?d.dd.resizable(e,"disable"):d.dd.resizable(e,"enable"))}),this},j.prototype.movable=function(b,c){var d=this;return b=a(b),b.each(function(b,e){e=a(e);var f=e.data("_gridstack_node");void 0!==f&&null!==f&&(f.noMove=!c,f.noMove||d._isOneColumnMode()&&!d.opts.disableOneColumnMode?(d.dd.draggable(e,"disable"),e.removeClass("ui-draggable-handle")):(d.dd.draggable(e,"enable"),e.addClass("ui-draggable-handle")))}),this},j.prototype.enableMove=function(a,b){this.movable(this.container.children("."+this.opts.itemClass),a),b&&(this.opts.disableDrag=!a)},j.prototype.enableResize=function(a,b){this.resizable(this.container.children("."+this.opts.itemClass),a),b&&(this.opts.disableResize=!a)},j.prototype.disable=function(){this.movable(this.container.children("."+this.opts.itemClass),!1),this.resizable(this.container.children("."+this.opts.itemClass),!1),this.container.trigger("disable")},j.prototype.enable=function(){this.movable(this.container.children("."+this.opts.itemClass),!0),this.resizable(this.container.children("."+this.opts.itemClass),!0),this.container.trigger("enable")},j.prototype.locked=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");void 0!==e&&null!==e&&(e.locked=c||!1,d.attr("data-gs-locked",e.locked?"yes":null))}),this},j.prototype.maxHeight=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");void 0!==e&&null!==e&&(isNaN(c)||(e.maxHeight=c||!1,d.attr("data-gs-max-height",c)))}),this},j.prototype.minHeight=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");void 0!==e&&null!==e&&(isNaN(c)||(e.minHeight=c||!1,d.attr("data-gs-min-height",c)))}),this},j.prototype.maxWidth=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");void 0!==e&&null!==e&&(isNaN(c)||(e.maxWidth=c||!1,d.attr("data-gs-max-width",c)))}),this},j.prototype.minWidth=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");void 0!==e&&null!==e&&(isNaN(c)||(e.minWidth=c||!1,d.attr("data-gs-min-width",c)))}),this},j.prototype._updateElement=function(b,c){b=a(b).first();var d=b.data("_gridstack_node");if(void 0!==d&&null!==d){var e=this;e.grid.cleanNodes(),e.grid.beginUpdate(d),c.call(this,b,d),e._updateContainerHeight(),e._triggerChangeEvent(),e.grid.endUpdate()}},j.prototype.resize=function(a,b,c){this._updateElement(a,function(a,d){b=null!==b&&void 0!==b?b:d.width,c=null!==c&&void 0!==c?c:d.height,this.grid.moveNode(d,d.x,d.y,b,c)})},j.prototype.move=function(a,b,c){this._updateElement(a,function(a,d){b=null!==b&&void 0!==b?b:d.x,c=null!==c&&void 0!==c?c:d.y,this.grid.moveNode(d,b,c,d.width,d.height)})},j.prototype.update=function(a,b,c,d,e){this._updateElement(a,function(a,f){b=null!==b&&void 0!==b?b:f.x,c=null!==c&&void 0!==c?c:f.y,d=null!==d&&void 0!==d?d:f.width,e=null!==e&&void 0!==e?e:f.height,this.grid.moveNode(f,b,c,d,e)})},j.prototype.verticalMargin=function(a,b){if(void 0===a)return this.opts.verticalMargin;var c=g.parseHeight(a);this.opts.verticalMarginUnit===c.unit&&this.opts.height===c.height||(this.opts.verticalMarginUnit=c.unit,this.opts.verticalMargin=c.height,b||this._updateStyles())},j.prototype.cellHeight=function(a,b){if(void 0===a){if(this.opts.cellHeight)return this.opts.cellHeight;var c=this.container.children("."+this.opts.itemClass).first();return Math.ceil(c.outerHeight()/c.attr("data-gs-height"))}var d=g.parseHeight(a);this.opts.cellHeightUnit===d.heightUnit&&this.opts.height===d.height||(this.opts.cellHeightUnit=d.unit,this.opts.cellHeight=d.height,b||this._updateStyles())},j.prototype.cellWidth=function(){return Math.round(this.container.outerWidth()/this.opts.width)},j.prototype.getCellFromPixel=function(a,b){var c=void 0!==b&&b?this.container.offset():this.container.position(),d=a.left-c.left,e=a.top-c.top,f=Math.floor(this.container.width()/this.opts.width),g=Math.floor(this.container.height()/parseInt(this.container.attr("data-gs-current-height")));return{x:Math.floor(d/f),y:Math.floor(e/g)}},j.prototype.batchUpdate=function(){this.grid.batchUpdate()},j.prototype.commit=function(){this.grid.commit(),this._updateContainerHeight()},j.prototype.isAreaEmpty=function(a,b,c,d){return this.grid.isAreaEmpty(a,b,c,d)},j.prototype.setStatic=function(a){this.opts.staticGrid=!0===a,this.enableMove(!a),this.enableResize(!a),this._setStaticClass()},j.prototype._setStaticClass=function(){!0===this.opts.staticGrid?this.container.addClass("grid-stack-static"):this.container.removeClass("grid-stack-static")},j.prototype._updateNodeWidths=function(a,b){this.grid._sortNodes(),this.grid.batchUpdate();for(var c={},d=0;d<this.grid.nodes.length;d++)c=this.grid.nodes[d],this.update(c.el,Math.round(c.x*b/a),void 0,Math.round(c.width*b/a),void 0);this.grid.commit()},j.prototype.setGridWidth=function(a,b){this.container.removeClass("grid-stack-"+this.opts.width),!0!==b&&this._updateNodeWidths(this.opts.width,a),this.opts.width=a,this.grid.width=a,this.container.addClass("grid-stack-"+a)},i.prototype.batch_update=e(i.prototype.batchUpdate),i.prototype._fix_collisions=e(i.prototype._fixCollisions,"_fix_collisions","_fixCollisions"),i.prototype.is_area_empty=e(i.prototype.isAreaEmpty,"is_area_empty","isAreaEmpty"),i.prototype._sort_nodes=e(i.prototype._sortNodes,"_sort_nodes","_sortNodes"),i.prototype._pack_nodes=e(i.prototype._packNodes,"_pack_nodes","_packNodes"),i.prototype._prepare_node=e(i.prototype._prepareNode,"_prepare_node","_prepareNode"),i.prototype.clean_nodes=e(i.prototype.cleanNodes,"clean_nodes","cleanNodes"),i.prototype.get_dirty_nodes=e(i.prototype.getDirtyNodes,"get_dirty_nodes","getDirtyNodes"),i.prototype.add_node=e(i.prototype.addNode,"add_node","addNode, "),i.prototype.remove_node=e(i.prototype.removeNode,"remove_node","removeNode"),i.prototype.can_move_node=e(i.prototype.canMoveNode,"can_move_node","canMoveNode"),i.prototype.move_node=e(i.prototype.moveNode,"move_node","moveNode"),i.prototype.get_grid_height=e(i.prototype.getGridHeight,"get_grid_height","getGridHeight"),i.prototype.begin_update=e(i.prototype.beginUpdate,"begin_update","beginUpdate"),i.prototype.end_update=e(i.prototype.endUpdate,"end_update","endUpdate"),i.prototype.can_be_placed_with_respect_to_height=e(i.prototype.canBePlacedWithRespectToHeight,"can_be_placed_with_respect_to_height","canBePlacedWithRespectToHeight"),j.prototype._trigger_change_event=e(j.prototype._triggerChangeEvent,"_trigger_change_event","_triggerChangeEvent"),j.prototype._init_styles=e(j.prototype._initStyles,"_init_styles","_initStyles"),j.prototype._update_styles=e(j.prototype._updateStyles,"_update_styles","_updateStyles"),j.prototype._update_container_height=e(j.prototype._updateContainerHeight,"_update_container_height","_updateContainerHeight"),j.prototype._is_one_column_mode=e(j.prototype._isOneColumnMode,"_is_one_column_mode","_isOneColumnMode"),j.prototype._prepare_element=e(j.prototype._prepareElement,"_prepare_element","_prepareElement"),j.prototype.set_animation=e(j.prototype.setAnimation,"set_animation","setAnimation"),j.prototype.add_widget=e(j.prototype.addWidget,"add_widget","addWidget"),j.prototype.make_widget=e(j.prototype.makeWidget,"make_widget","makeWidget"),j.prototype.will_it_fit=e(j.prototype.willItFit,"will_it_fit","willItFit"),
+j.prototype.remove_widget=e(j.prototype.removeWidget,"remove_widget","removeWidget"),j.prototype.remove_all=e(j.prototype.removeAll,"remove_all","removeAll"),j.prototype.min_height=e(j.prototype.minHeight,"min_height","minHeight"),j.prototype.min_width=e(j.prototype.minWidth,"min_width","minWidth"),j.prototype._update_element=e(j.prototype._updateElement,"_update_element","_updateElement"),j.prototype.cell_height=e(j.prototype.cellHeight,"cell_height","cellHeight"),j.prototype.cell_width=e(j.prototype.cellWidth,"cell_width","cellWidth"),j.prototype.get_cell_from_pixel=e(j.prototype.getCellFromPixel,"get_cell_from_pixel","getCellFromPixel"),j.prototype.batch_update=e(j.prototype.batchUpdate,"batch_update","batchUpdate"),j.prototype.is_area_empty=e(j.prototype.isAreaEmpty,"is_area_empty","isAreaEmpty"),j.prototype.set_static=e(j.prototype.setStatic,"set_static","setStatic"),j.prototype._set_static_class=e(j.prototype._setStaticClass,"_set_static_class","_setStaticClass"),d.GridStackUI=j,d.GridStackUI.Utils=g,d.GridStackUI.Engine=i,d.GridStackUI.GridStackDragDropPlugin=c,a.fn.gridstack=function(b){return this.each(function(){var c=a(this);c.data("gridstack")||c.data("gridstack",new j(this,b))})},d.GridStackUI}),/**
+ * gridstack.js 0.3.0
+ * http://troolee.github.io/gridstack.js/
+ * (c) 2014-2016 Pavel Reznikov, Dylan Weiss
+ * gridstack.js may be freely distributed under the MIT license.
+ * @preserve
+*/
+function(a){if("function"==typeof define&&define.amd)define(["jquery","lodash","gridstack","jquery-ui/data","jquery-ui/disable-selection","jquery-ui/focusable","jquery-ui/form","jquery-ui/ie","jquery-ui/keycode","jquery-ui/labels","jquery-ui/jquery-1-7","jquery-ui/plugin","jquery-ui/safe-active-element","jquery-ui/safe-blur","jquery-ui/scroll-parent","jquery-ui/tabbable","jquery-ui/unique-id","jquery-ui/version","jquery-ui/widget","jquery-ui/widgets/mouse","jquery-ui/widgets/draggable","jquery-ui/widgets/droppable","jquery-ui/widgets/resizable"],a);else if("undefined"!=typeof exports){try{jQuery=require("jquery")}catch(a){}try{_=require("lodash")}catch(a){}try{GridStackUI=require("gridstack")}catch(a){}a(jQuery,_,GridStackUI)}else a(jQuery,_,GridStackUI)}(function(a,b,c){function d(a){c.GridStackDragDropPlugin.call(this,a)}window;return c.GridStackDragDropPlugin.registerPlugin(d),d.prototype=Object.create(c.GridStackDragDropPlugin.prototype),d.prototype.constructor=d,d.prototype.resizable=function(c,d){if(c=a(c),"disable"===d||"enable"===d)c.resizable(d);else if("option"===d){var e=arguments[2],f=arguments[3];c.resizable(d,e,f)}else c.resizable(b.extend({},this.grid.opts.resizable,{start:d.start||function(){},stop:d.stop||function(){},resize:d.resize||function(){}}));return this},d.prototype.draggable=function(c,d){return c=a(c),"disable"===d||"enable"===d?c.draggable(d):c.draggable(b.extend({},this.grid.opts.draggable,{containment:this.grid.opts.isNested?this.grid.container.parent():null,start:d.start||function(){},stop:d.stop||function(){},drag:d.drag||function(){}})),this},d.prototype.droppable=function(b,c){return b=a(b),"disable"===c||"enable"===c?b.droppable(c):b.droppable({accept:c.accept}),this},d.prototype.isDroppable=function(b,c){return b=a(b),Boolean(b.data("droppable"))},d.prototype.on=function(b,c,d){return a(b).on(c,d),this},d});
+//# sourceMappingURL=gridstack.min.map
\ No newline at end of file
diff --git a/dist/gridstack.css b/dist/gridstack.css
index f5c84a0c5..f108bafd7 100644
--- a/dist/gridstack.css
+++ b/dist/gridstack.css
@@ -369,18 +369,19 @@
   transition: left 0s, top 0s, height 0s, width 0s;
 }
 
-@media (max-width: 768px) {
-  .grid-stack-item {
-    position: relative !important;
-    width: auto !important;
-    left: 0 !important;
-    top: auto !important;
-    margin-bottom: 20px;
-  }
-  .grid-stack-item .ui-resizable-handle {
-    display: none;
-  }
-  .grid-stack {
-    height: auto !important;
-  }
+.grid-stack.grid-stack-one-column-mode {
+  height: auto !important;
+}
+
+.grid-stack.grid-stack-one-column-mode > .grid-stack-item {
+  position: relative !important;
+  width: auto !important;
+  left: 0 !important;
+  top: auto !important;
+  margin-bottom: 20px;
+  max-width: none !important;
+}
+
+.grid-stack.grid-stack-one-column-mode > .grid-stack-item > .ui-resizable-handle {
+  display: none;
 }
diff --git a/dist/gridstack.jQueryUI.js b/dist/gridstack.jQueryUI.js
new file mode 100644
index 000000000..c9e0391c6
--- /dev/null
+++ b/dist/gridstack.jQueryUI.js
@@ -0,0 +1,97 @@
+/**
+ * gridstack.js 0.3.0
+ * http://troolee.github.io/gridstack.js/
+ * (c) 2014-2016 Pavel Reznikov, Dylan Weiss
+ * gridstack.js may be freely distributed under the MIT license.
+ * @preserve
+*/
+(function(factory) {
+    if (typeof define === 'function' && define.amd) {
+        define(['jquery', 'lodash', 'gridstack', 'jquery-ui/data', 'jquery-ui/disable-selection', 'jquery-ui/focusable',
+            'jquery-ui/form', 'jquery-ui/ie', 'jquery-ui/keycode', 'jquery-ui/labels', 'jquery-ui/jquery-1-7',
+            'jquery-ui/plugin', 'jquery-ui/safe-active-element', 'jquery-ui/safe-blur', 'jquery-ui/scroll-parent',
+            'jquery-ui/tabbable', 'jquery-ui/unique-id', 'jquery-ui/version', 'jquery-ui/widget',
+            'jquery-ui/widgets/mouse', 'jquery-ui/widgets/draggable', 'jquery-ui/widgets/droppable',
+            'jquery-ui/widgets/resizable'], factory);
+    } else if (typeof exports !== 'undefined') {
+        try { jQuery = require('jquery'); } catch (e) {}
+        try { _ = require('lodash'); } catch (e) {}
+        try { GridStackUI = require('gridstack'); } catch (e) {}
+        factory(jQuery, _, GridStackUI);
+    } else {
+        factory(jQuery, _, GridStackUI);
+    }
+})(function($, _, GridStackUI) {
+
+    var scope = window;
+
+    /**
+    * @class JQueryUIGridStackDragDropPlugin
+    * jQuery UI implementation of drag'n'drop gridstack plugin.
+    */
+    function JQueryUIGridStackDragDropPlugin(grid) {
+        GridStackUI.GridStackDragDropPlugin.call(this, grid);
+    }
+
+    GridStackUI.GridStackDragDropPlugin.registerPlugin(JQueryUIGridStackDragDropPlugin);
+
+    JQueryUIGridStackDragDropPlugin.prototype = Object.create(GridStackUI.GridStackDragDropPlugin.prototype);
+    JQueryUIGridStackDragDropPlugin.prototype.constructor = JQueryUIGridStackDragDropPlugin;
+
+    JQueryUIGridStackDragDropPlugin.prototype.resizable = function(el, opts) {
+        el = $(el);
+        if (opts === 'disable' || opts === 'enable') {
+            el.resizable(opts);
+        } else if (opts === 'option') {
+            var key = arguments[2];
+            var value = arguments[3];
+            el.resizable(opts, key, value);
+        } else {
+            el.resizable(_.extend({}, this.grid.opts.resizable, {
+                start: opts.start || function() {},
+                stop: opts.stop || function() {},
+                resize: opts.resize || function() {}
+            }));
+        }
+        return this;
+    };
+
+    JQueryUIGridStackDragDropPlugin.prototype.draggable = function(el, opts) {
+        el = $(el);
+        if (opts === 'disable' || opts === 'enable') {
+            el.draggable(opts);
+        } else {
+            el.draggable(_.extend({}, this.grid.opts.draggable, {
+                containment: this.grid.opts.isNested ? this.grid.container.parent() : null,
+                start: opts.start || function() {},
+                stop: opts.stop || function() {},
+                drag: opts.drag || function() {}
+            }));
+        }
+        return this;
+    };
+
+    JQueryUIGridStackDragDropPlugin.prototype.droppable = function(el, opts) {
+        el = $(el);
+        if (opts === 'disable' || opts === 'enable') {
+            el.droppable(opts);
+        } else {
+            el.droppable({
+                accept: opts.accept
+            });
+        }
+        return this;
+    };
+
+    JQueryUIGridStackDragDropPlugin.prototype.isDroppable = function(el, opts) {
+        el = $(el);
+        return Boolean(el.data('droppable'));
+    };
+
+    JQueryUIGridStackDragDropPlugin.prototype.on = function(el, eventName, callback) {
+        $(el).on(eventName, callback);
+        return this;
+    };
+
+    return JQueryUIGridStackDragDropPlugin;
+});
diff --git a/dist/gridstack.jQueryUI.min.js b/dist/gridstack.jQueryUI.min.js
new file mode 100644
index 000000000..0a2312368
--- /dev/null
+++ b/dist/gridstack.jQueryUI.min.js
@@ -0,0 +1,9 @@
+/**
+ * gridstack.js 0.3.0
+ * http://troolee.github.io/gridstack.js/
+ * (c) 2014-2016 Pavel Reznikov, Dylan Weiss
+ * gridstack.js may be freely distributed under the MIT license.
+ * @preserve
+*/
+!function(a){if("function"==typeof define&&define.amd)define(["jquery","lodash","gridstack","jquery-ui/data","jquery-ui/disable-selection","jquery-ui/focusable","jquery-ui/form","jquery-ui/ie","jquery-ui/keycode","jquery-ui/labels","jquery-ui/jquery-1-7","jquery-ui/plugin","jquery-ui/safe-active-element","jquery-ui/safe-blur","jquery-ui/scroll-parent","jquery-ui/tabbable","jquery-ui/unique-id","jquery-ui/version","jquery-ui/widget","jquery-ui/widgets/mouse","jquery-ui/widgets/draggable","jquery-ui/widgets/droppable","jquery-ui/widgets/resizable"],a);else if("undefined"!=typeof exports){try{jQuery=require("jquery")}catch(a){}try{_=require("lodash")}catch(a){}try{GridStackUI=require("gridstack")}catch(a){}a(jQuery,_,GridStackUI)}else a(jQuery,_,GridStackUI)}(function(a,b,c){function d(a){c.GridStackDragDropPlugin.call(this,a)}window;return c.GridStackDragDropPlugin.registerPlugin(d),d.prototype=Object.create(c.GridStackDragDropPlugin.prototype),d.prototype.constructor=d,d.prototype.resizable=function(c,d){if(c=a(c),"disable"===d||"enable"===d)c.resizable(d);else if("option"===d){var e=arguments[2],f=arguments[3];c.resizable(d,e,f)}else c.resizable(b.extend({},this.grid.opts.resizable,{start:d.start||function(){},stop:d.stop||function(){},resize:d.resize||function(){}}));return this},d.prototype.draggable=function(c,d){return c=a(c),"disable"===d||"enable"===d?c.draggable(d):c.draggable(b.extend({},this.grid.opts.draggable,{containment:this.grid.opts.isNested?this.grid.container.parent():null,start:d.start||function(){},stop:d.stop||function(){},drag:d.drag||function(){}})),this},d.prototype.droppable=function(b,c){return b=a(b),"disable"===c||"enable"===c?b.droppable(c):b.droppable({accept:c.accept}),this},d.prototype.isDroppable=function(b,c){return b=a(b),Boolean(b.data("droppable"))},d.prototype.on=function(b,c,d){return a(b).on(c,d),this},d});
+//# sourceMappingURL=gridstack.min.map
\ No newline at end of file
diff --git a/dist/gridstack.js b/dist/gridstack.js
index 3b5a660b6..fbdb524f0 100644
--- a/dist/gridstack.js
+++ b/dist/gridstack.js
@@ -1,18 +1,13 @@
 /**
- * gridstack.js 0.2.6
+ * gridstack.js 0.3.0
  * http://troolee.github.io/gridstack.js/
- * (c) 2014-2016 Pavel Reznikov
+ * (c) 2014-2016 Pavel Reznikov, Dylan Weiss
  * gridstack.js may be freely distributed under the MIT license.
  * @preserve
 */
 (function(factory) {
     if (typeof define === 'function' && define.amd) {
-        define(['jquery', 'lodash', 'jquery-ui/data', 'jquery-ui/disable-selection', 'jquery-ui/focusable',
-            'jquery-ui/form', 'jquery-ui/ie', 'jquery-ui/keycode', 'jquery-ui/labels', 'jquery-ui/jquery-1-7',
-            'jquery-ui/plugin', 'jquery-ui/safe-active-element', 'jquery-ui/safe-blur', 'jquery-ui/scroll-parent',
-            'jquery-ui/tabbable', 'jquery-ui/unique-id', 'jquery-ui/version', 'jquery-ui/widget',
-            'jquery-ui/widgets/mouse', 'jquery-ui/widgets/draggable', 'jquery-ui/widgets/droppable',
-            'jquery-ui/widgets/resizable'], factory);
+        define(['jquery', 'lodash'], factory);
     } else if (typeof exports !== 'undefined') {
         try { jQuery = require('jquery'); } catch (e) {}
         try { _ = require('lodash'); } catch (e) {}
@@ -124,6 +119,41 @@
     Utils.insert_css_rule = obsolete(Utils.insertCSSRule, 'insert_css_rule', 'insertCSSRule');
     // jscs:enable requireCamelCaseOrUpperCaseIdentifiers
 
+    /**
+    * @class GridStackDragDropPlugin
+    * Base class for drag'n'drop plugin.
+    */
+    function GridStackDragDropPlugin(grid) {
+        this.grid = grid;
+    }
+
+    GridStackDragDropPlugin.registeredPlugins = [];
+
+    GridStackDragDropPlugin.registerPlugin = function(pluginClass) {
+        GridStackDragDropPlugin.registeredPlugins.push(pluginClass);
+    };
+
+    GridStackDragDropPlugin.prototype.resizable = function(el, opts) {
+        return this;
+    };
+
+    GridStackDragDropPlugin.prototype.draggable = function(el, opts) {
+        return this;
+    };
+
+    GridStackDragDropPlugin.prototype.droppable = function(el, opts) {
+        return this;
+    };
+
+    GridStackDragDropPlugin.prototype.isDroppable = function(el) {
+        return false;
+    };
+
+    GridStackDragDropPlugin.prototype.on = function(el, eventName, callback) {
+        return this;
+    };
+
+
     var idSeq = 0;
 
     var GridStackEngine = function(width, onchange, floatMode, height, items) {
@@ -351,6 +381,9 @@
     };
 
     GridStackEngine.prototype.canMoveNode = function(node, x, y, width, height) {
+        if (!this.isNodeChangedPosition(node, x, y, width, height)) {
+            return false;
+        }
         var hasLocked = Boolean(_.find(this.nodes, function(n) { return n.locked; }));
 
         if (!this.height && !hasLocked) {
@@ -406,7 +439,27 @@
         return clone.getGridHeight() <= this.height;
     };
 
+    GridStackEngine.prototype.isNodeChangedPosition = function(node, x, y, width, height) {
+        if (typeof x != 'number') { x = node.x; }
+        if (typeof y != 'number') { y = node.y; }
+        if (typeof width != 'number') { width = node.width; }
+        if (typeof height != 'number') { height = node.height; }
+
+        if (typeof node.maxWidth != 'undefined') { width = Math.min(width, node.maxWidth); }
+        if (typeof node.maxHeight != 'undefined') { height = Math.min(height, node.maxHeight); }
+        if (typeof node.minWidth != 'undefined') { width = Math.max(width, node.minWidth); }
+        if (typeof node.minHeight != 'undefined') { height = Math.max(height, node.minHeight); }
+
+        if (node.x == x && node.y == y && node.width == width && node.height == height) {
+            return false;
+        }
+        return true;
+    };
+
     GridStackEngine.prototype.moveNode = function(node, x, y, width, height, noPack) {
+        if (!this.isNodeChangedPosition(node, x, y, width, height)) {
+            return node;
+        }
         if (typeof x != 'number') { x = node.x; }
         if (typeof y != 'number') { y = node.y; }
         if (typeof width != 'number') { width = node.width; }
@@ -429,6 +482,11 @@
         node.width = width;
         node.height = height;
 
+        node.lastTriedX = x;
+        node.lastTriedY = y;
+        node.lastTriedWidth = width;
+        node.lastTriedHeight = height;
+
         node = this._prepareNode(node, resizing);
 
         this._fixCollisions(node);
@@ -547,9 +605,20 @@
             removable: false,
             removeTimeout: 2000,
             verticalMarginUnit: 'px',
-            cellHeightUnit: 'px'
+            cellHeightUnit: 'px',
+            disableOneColumnMode: opts.disableOneColumnMode || false,
+            oneColumnModeClass: opts.oneColumnModeClass || 'grid-stack-one-column-mode',
+            ddPlugin: null
         });
 
+        if (this.opts.ddPlugin === false) {
+            this.opts.ddPlugin = GridStackDragDropPlugin;
+        } else if (this.opts.ddPlugin === null) {
+            this.opts.ddPlugin = _.first(GridStackDragDropPlugin.registeredPlugins) || GridStackDragDropPlugin;
+        }
+
+        this.dd = new this.opts.ddPlugin(this);
+
         if (this.opts.rtl === 'auto') {
             this.opts.rtl = this.container.css('direction') === 'rtl';
         }
@@ -631,11 +700,11 @@
                 self._updateHeightsOnResize();
             }
 
-            if (self._isOneColumnMode()) {
+            if (self._isOneColumnMode() && !self.opts.disableOneColumnMode) {
                 if (oneColumnMode) {
                     return;
                 }
-
+                self.container.addClass(self.opts.oneColumnModeClass);
                 oneColumnMode = true;
 
                 self.grid._sortNodes();
@@ -645,12 +714,8 @@
                     if (self.opts.staticGrid) {
                         return;
                     }
-                    if (node.noMove || self.opts.disableDrag) {
-                        node.el.draggable('disable');
-                    }
-                    if (node.noResize || self.opts.disableResize) {
-                        node.el.resizable('disable');
-                    }
+                    self.dd.draggable(node.el, 'disable');
+                    self.dd.resizable(node.el, 'disable');
 
                     node.el.trigger('resize');
                 });
@@ -659,6 +724,7 @@
                     return;
                 }
 
+                self.container.removeClass(self.opts.oneColumnModeClass);
                 oneColumnMode = false;
 
                 if (self.opts.staticGrid) {
@@ -667,10 +733,10 @@
 
                 _.each(self.grid.nodes, function(node) {
                     if (!node.noMove && !self.opts.disableDrag) {
-                        node.el.draggable('enable');
+                        self.dd.draggable(node.el, 'enable');
                     }
                     if (!node.noResize && !self.opts.disableResize) {
-                        node.el.resizable('enable');
+                        self.dd.resizable(node.el, 'enable');
                     }
 
                     node.el.trigger('resize');
@@ -683,13 +749,13 @@
 
         if (!self.opts.staticGrid && typeof self.opts.removable === 'string') {
             var trashZone = $(self.opts.removable);
-            if (!trashZone.data('droppable')) {
-                trashZone.droppable({
+            if (!this.dd.isDroppable(trashZone)) {
+                this.dd.droppable(trashZone, {
                     accept: '.' + self.opts.itemClass
                 });
             }
-            trashZone
-                .on('dropover', function(event, ui) {
+            this.dd
+                .on(trashZone, 'dropover', function(event, ui) {
                     var el = $(ui.draggable);
                     var node = el.data('_gridstack_node');
                     if (node._grid !== self) {
@@ -697,7 +763,7 @@
                     }
                     self._setupRemovingTimeout(el);
                 })
-                .on('dropout', function(event, ui) {
+                .on(trashZone, 'dropout', function(event, ui) {
                     var el = $(ui.draggable);
                     var node = el.data('_gridstack_node');
                     if (node._grid !== self) {
@@ -747,16 +813,18 @@
                 }
             };
 
-            $(self.container).droppable({
-                accept: function(el) {
-                    el = $(el);
-                    var node = el.data('_gridstack_node');
-                    if (node && node._grid === self) {
-                        return false;
+            this.dd
+                .droppable(self.container, {
+                    accept: function(el) {
+                        el = $(el);
+                        var node = el.data('_gridstack_node');
+                        if (node && node._grid === self) {
+                            return false;
+                        }
+                        return el.is(self.opts.acceptWidgets === true ? '.grid-stack-item' : self.opts.acceptWidgets);
                     }
-                    return el.is(self.opts.acceptWidgets === true ? '.grid-stack-item' : self.opts.acceptWidgets);
-                },
-                over: function(event, ui) {
+                })
+                .on(self.container, 'dropover', function(event, ui) {
                     var offset = self.container.offset();
                     var el = $(ui.draggable);
                     var cellWidth = self.cellWidth();
@@ -773,8 +841,8 @@
                     el.data('_gridstack_node_orig', origNode);
 
                     el.on('drag', onDrag);
-                },
-                out: function(event, ui) {
+                })
+                .on(self.container, 'dropout', function(event, ui) {
                     var el = $(ui.draggable);
                     el.unbind('drag', onDrag);
                     var node = el.data('_gridstack_node');
@@ -783,14 +851,18 @@
                     self.placeholder.detach();
                     self._updateContainerHeight();
                     el.data('_gridstack_node', el.data('_gridstack_node_orig'));
-                },
-                drop: function(event, ui) {
+                })
+                .on(self.container, 'drop', function(event, ui) {
                     self.placeholder.detach();
 
                     var node = $(ui.draggable).data('_gridstack_node');
                     node._grid = self;
                     var el = $(ui.draggable).clone(false);
                     el.data('_gridstack_node', node);
+                    var originalNode = $(ui.draggable).data('_gridstack_node_orig');
+                    if (typeof originalNode !== 'undefined') {
+                        originalNode._grid._triggerRemoveEvent();
+                    }
                     $(ui.draggable).remove();
                     node.el = el;
                     self.placeholder.hide();
@@ -808,11 +880,12 @@
                     self.container.append(el);
                     self._prepareElementsByNode(el, node);
                     self._updateContainerHeight();
+                    self.grid._addedNodes.push(node);
+                    self._triggerAddEvent();
                     self._triggerChangeEvent();
 
                     self.grid.endUpdate();
-                }
-            });
+                });
         }
     };
 
@@ -867,9 +940,9 @@
 
         if (typeof maxHeight == 'undefined') {
             maxHeight = this._styles._max;
-            this._initStyles();
-            this._updateContainerHeight();
         }
+        this._initStyles();
+        this._updateContainerHeight();
         if (!this.opts.cellHeight) { // The rest will be handled by CSS
             return ;
         }
@@ -975,9 +1048,6 @@
     };
 
     GridStack.prototype._prepareElementsByNode = function(el, node) {
-        if (typeof $.ui === 'undefined') {
-            return;
-        }
         var self = this;
 
         var cellWidth;
@@ -995,20 +1065,22 @@
             }
 
             if (event.type == 'drag') {
-                if (x < 0 || x >= self.grid.width || y < 0) {
-                    if (self.opts.removable === true) {
-                        self._setupRemovingTimeout(el);
-                    }
+                if (x < 0 || x >= self.grid.width || y < 0 || (!self.grid.float && y > self.grid.getGridHeight())) {
+                    if (!node._temporaryRemoved) {
+                        if (self.opts.removable === true) {
+                            self._setupRemovingTimeout(el);
+                        }
 
-                    x = node._beforeDragX;
-                    y = node._beforeDragY;
+                        x = node._beforeDragX;
+                        y = node._beforeDragY;
 
-                    self.placeholder.detach();
-                    self.placeholder.hide();
-                    self.grid.removeNode(node);
-                    self._updateContainerHeight();
+                        self.placeholder.detach();
+                        self.placeholder.hide();
+                        self.grid.removeNode(node);
+                        self._updateContainerHeight();
 
-                    node._temporaryRemoved = true;
+                        node._temporaryRemoved = true;
+                    }
                 } else {
                     self._clearRemovingTimeout(el);
 
@@ -1030,10 +1102,18 @@
                     return;
                 }
             }
-
-            if (!self.grid.canMoveNode(node, x, y, width, height)) {
+            // width and height are undefined if not resizing
+            var lastTriedWidth = typeof width !== 'undefined' ? width : node.lastTriedWidth;
+            var lastTriedHeight = typeof height !== 'undefined' ? height : node.lastTriedHeight;
+            if (!self.grid.canMoveNode(node, x, y, width, height) ||
+                (node.lastTriedX === x && node.lastTriedY === y &&
+                node.lastTriedWidth === lastTriedWidth && node.lastTriedHeight === lastTriedHeight)) {
                 return;
             }
+            node.lastTriedX = x;
+            node.lastTriedY = y;
+            node.lastTriedWidth = width;
+            node.lastTriedHeight = height;
             self.grid.moveNode(node, x, y, width, height);
             self._updateContainerHeight();
         };
@@ -1056,8 +1136,8 @@
             node._beforeDragX = node.x;
             node._beforeDragY = node.y;
 
-            el.resizable('option', 'minWidth', cellWidth * (node.minWidth || 1));
-            el.resizable('option', 'minHeight', strictCellHeight * (node.minHeight || 1));
+            self.dd.resizable(el, 'option', 'minWidth', cellWidth * (node.minWidth || 1));
+            self.dd.resizable(el, 'option', 'minHeight', strictCellHeight * (node.minHeight || 1));
 
             if (event.type == 'resizestart') {
                 o.find('.grid-stack-item').trigger('resizestart');
@@ -1077,6 +1157,8 @@
 
             if (node._isAboutToRemove) {
                 forceNotify = true;
+                var gridToNotify = el.data('_gridstack_node')._grid;
+                gridToNotify._triggerRemoveEvent();
                 el.removeData('_gridstack_node');
                 el.remove();
             } else {
@@ -1111,28 +1193,31 @@
                     $(el).data('gridstack').onResizeHandler();
                 });
                 o.find('.grid-stack-item').trigger('resizestop');
+                o.find('.grid-stack-item').trigger('gsresizestop');
+            }
+            if (event.type == 'resizestop') {
+                self.container.trigger('gsresizestop', o);
             }
         };
 
-        el
-            .draggable(_.extend({}, this.opts.draggable, {
-                containment: this.opts.isNested ? this.container.parent() : null,
+        this.dd
+            .draggable(el, {
                 start: onStartMoving,
                 stop: onEndMoving,
                 drag: dragOrResize
-            }))
-            .resizable(_.extend({}, this.opts.resizable, {
+            })
+            .resizable(el, {
                 start: onStartMoving,
                 stop: onEndMoving,
                 resize: dragOrResize
-            }));
+            });
 
-        if (node.noMove || this._isOneColumnMode() || this.opts.disableDrag) {
-            el.draggable('disable');
+        if (node.noMove || (this._isOneColumnMode() && !self.opts.disableOneColumnMode) || this.opts.disableDrag) {
+            this.dd.draggable(el, 'disable');
         }
 
-        if (node.noResize || this._isOneColumnMode() || this.opts.disableResize) {
-            el.resizable('disable');
+        if (node.noResize || (this._isOneColumnMode() && !self.opts.disableOneColumnMode) || this.opts.disableResize) {
+            this.dd.resizable(el, 'disable');
         }
 
         el.attr('data-gs-locked', node.locked ? 'yes' : null);
@@ -1260,15 +1345,15 @@
         el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
-            if (typeof node == 'undefined' || node === null || typeof $.ui === 'undefined') {
+            if (typeof node == 'undefined' || node === null) {
                 return;
             }
 
             node.noResize = !(val || false);
-            if (node.noResize || self._isOneColumnMode()) {
-                el.resizable('disable');
+            if (node.noResize || (self._isOneColumnMode() && !self.opts.disableOneColumnMode)) {
+                self.dd.resizable(el, 'disable');
             } else {
-                el.resizable('enable');
+                self.dd.resizable(el, 'enable');
             }
         });
         return this;
@@ -1280,16 +1365,16 @@
         el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
-            if (typeof node == 'undefined' || node === null || typeof $.ui === 'undefined') {
+            if (typeof node == 'undefined' || node === null) {
                 return;
             }
 
             node.noMove = !(val || false);
-            if (node.noMove || self._isOneColumnMode()) {
-                el.draggable('disable');
+            if (node.noMove || (self._isOneColumnMode() && !self.opts.disableOneColumnMode)) {
+                self.dd.draggable(el, 'disable');
                 el.removeClass('ui-draggable-handle');
             } else {
-                el.draggable('enable');
+                self.dd.draggable(el, 'enable');
                 el.addClass('ui-draggable-handle');
             }
         });
@@ -1645,6 +1730,7 @@
 
     scope.GridStackUI.Utils = Utils;
     scope.GridStackUI.Engine = GridStackEngine;
+    scope.GridStackUI.GridStackDragDropPlugin = GridStackDragDropPlugin;
 
     $.fn.gridstack = function(opts) {
         return this.each(function() {
diff --git a/dist/gridstack.min.css b/dist/gridstack.min.css
index 5fb660201..79ada45df 100644
--- a/dist/gridstack.min.css
+++ b/dist/gridstack.min.css
@@ -1 +1 @@
-:root .grid-stack-item>.ui-resizable-handle{filter:none}.grid-stack{position:relative}.grid-stack.grid-stack-rtl{direction:ltr}.grid-stack.grid-stack-rtl>.grid-stack-item{direction:rtl}.grid-stack .grid-stack-placeholder>.placeholder-content{border:1px dashed #d3d3d3;margin:0;position:absolute;top:0;left:10px;right:10px;bottom:0;width:auto;z-index:0!important;text-align:center}.grid-stack>.grid-stack-item{min-width:8.3333333333%;position:absolute;padding:0}.grid-stack>.grid-stack-item>.grid-stack-item-content{margin:0;position:absolute;top:0;left:10px;right:10px;bottom:0;width:auto;z-index:0!important;overflow-x:hidden;overflow-y:auto}.grid-stack>.grid-stack-item>.ui-resizable-handle{position:absolute;font-size:.1px;display:block;-ms-touch-action:none;touch-action:none}.grid-stack>.grid-stack-item.ui-resizable-autohide>.ui-resizable-handle,.grid-stack>.grid-stack-item.ui-resizable-disabled>.ui-resizable-handle{display:none}.grid-stack>.grid-stack-item.ui-draggable-dragging,.grid-stack>.grid-stack-item.ui-resizable-resizing{z-index:100}.grid-stack>.grid-stack-item.ui-draggable-dragging>.grid-stack-item-content,.grid-stack>.grid-stack-item.ui-resizable-resizing>.grid-stack-item-content{box-shadow:1px 4px 6px 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\ No newline at end of file
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.grid-stack-item{-webkit-transition:left .3s,top .3s,height .3s,width .3s;-moz-transition:left .3s,top .3s,height .3s,width .3s;-ms-transition:left .3s,top .3s,height .3s,width .3s;-o-transition:left .3s,top .3s,height .3s,width .3s;transition:left .3s,top .3s,height .3s,width .3s}.grid-stack.grid-stack-animate .grid-stack-item.grid-stack-placeholder,.grid-stack.grid-stack-animate .grid-stack-item.ui-draggable-dragging,.grid-stack.grid-stack-animate .grid-stack-item.ui-resizable-resizing{-webkit-transition:left 0s,top 0s,height 0s,width 0s;-moz-transition:left 0s,top 0s,height 0s,width 0s;-ms-transition:left 0s,top 0s,height 0s,width 0s;-o-transition:left 0s,top 0s,height 0s,width 0s;transition:left 0s,top 0s,height 0s,width 0s}.grid-stack.grid-stack-one-column-mode{height:auto!important}.grid-stack.grid-stack-one-column-mode>.grid-stack-item{position:relative!important;width:auto!important;left:0!important;top:auto!important;margin-bottom:20px;max-width:none!important}.grid-stack.grid-stack-one-column-mode>.grid-stack-item>.ui-resizable-handle{display:none}
\ No newline at end of file
diff --git a/dist/gridstack.min.js b/dist/gridstack.min.js
index 51a29c343..0a9bd4ec6 100644
--- a/dist/gridstack.min.js
+++ b/dist/gridstack.min.js
@@ -1,24 +1,10 @@
 /**
- * gridstack.js 0.2.6
+ * gridstack.js 0.3.0
  * http://troolee.github.io/gridstack.js/
- * (c) 2014-2016 Pavel Reznikov
+ * (c) 2014-2016 Pavel Reznikov, Dylan Weiss
  * gridstack.js may be freely distributed under the MIT license.
  * @preserve
 */
-!function(a){if("function"==typeof define&&define.amd)define(["jquery","lodash","jquery-ui/data","jquery-ui/disable-selection","jquery-ui/focusable","jquery-ui/form","jquery-ui/ie","jquery-ui/keycode","jquery-ui/labels","jquery-ui/jquery-1-7","jquery-ui/plugin","jquery-ui/safe-active-element","jquery-ui/safe-blur","jquery-ui/scroll-parent","jquery-ui/tabbable","jquery-ui/unique-id","jquery-ui/version","jquery-ui/widget","jquery-ui/widgets/mouse","jquery-ui/widgets/draggable","jquery-ui/widgets/droppable","jquery-ui/widgets/resizable"],a);else if("undefined"!=typeof exports){try{jQuery=require("jquery")}catch(b){}try{_=require("lodash")}catch(b){}a(jQuery,_)}else a(jQuery,_)}(function(a,b){var c=window,d=function(a,b,c){var d=function(){return console.warn("gridstack.js: Function `"+b+"` is deprecated as of v0.2.5 and has been replaced with `"+c+"`. It will be **completely** removed in v1.0."),a.apply(this,arguments)};return d.prototype=a.prototype,d},e=function(a,b){console.warn("gridstack.js: Option `"+a+"` is deprecated as of v0.2.5 and has been replaced with `"+b+"`. It will be **completely** removed in v1.0.")},f={isIntercepted:function(a,b){return!(a.x+a.width<=b.x||b.x+b.width<=a.x||a.y+a.height<=b.y||b.y+b.height<=a.y)},sort:function(a,c,d){return d=d||b.chain(a).map(function(a){return a.x+a.width}).max().value(),c=c!=-1?1:-1,b.sortBy(a,function(a){return c*(a.x+a.y*d)})},createStylesheet:function(a){var b=document.createElement("style");return b.setAttribute("type","text/css"),b.setAttribute("data-gs-style-id",a),b.styleSheet?b.styleSheet.cssText="":b.appendChild(document.createTextNode("")),document.getElementsByTagName("head")[0].appendChild(b),b.sheet},removeStylesheet:function(b){a("STYLE[data-gs-style-id="+b+"]").remove()},insertCSSRule:function(a,b,c,d){"function"==typeof a.insertRule?a.insertRule(b+"{"+c+"}",d):"function"==typeof a.addRule&&a.addRule(b,c,d)},toBool:function(a){return"boolean"==typeof a?a:"string"==typeof a?(a=a.toLowerCase(),!(""===a||"no"==a||"false"==a||"0"==a)):Boolean(a)},_collisionNodeCheck:function(a){return a!=this.node&&f.isIntercepted(a,this.nn)},_didCollide:function(a){return f.isIntercepted({x:this.n.x,y:this.newY,width:this.n.width,height:this.n.height},a)},_isAddNodeIntercepted:function(a){return f.isIntercepted({x:this.x,y:this.y,width:this.node.width,height:this.node.height},a)},parseHeight:function(a){var c=a,d="px";if(c&&b.isString(c)){var e=c.match(/^(-[0-9]+\.[0-9]+|[0-9]*\.[0-9]+|-[0-9]+|[0-9]+)(px|em|rem|vh|vw)?$/);if(!e)throw new Error("Invalid height");d=e[2]||"px",c=parseFloat(e[1])}return{height:c,unit:d}}};
-// jscs:disable requireCamelCaseOrUpperCaseIdentifiers
-f.is_intercepted=d(f.isIntercepted,"is_intercepted","isIntercepted"),f.create_stylesheet=d(f.createStylesheet,"create_stylesheet","createStylesheet"),f.remove_stylesheet=d(f.removeStylesheet,"remove_stylesheet","removeStylesheet"),f.insert_css_rule=d(f.insertCSSRule,"insert_css_rule","insertCSSRule");
-// jscs:enable requireCamelCaseOrUpperCaseIdentifiers
-var g=0,h=function(a,b,c,d,e){this.width=a,this["float"]=c||!1,this.height=d||0,this.nodes=e||[],this.onchange=b||function(){},this._updateCounter=0,this._float=this["float"],this._addedNodes=[],this._removedNodes=[]};h.prototype.batchUpdate=function(){this._updateCounter=1,this["float"]=!0},h.prototype.commit=function(){0!==this._updateCounter&&(this._updateCounter=0,this["float"]=this._float,this._packNodes(),this._notify())},
-// For Meteor support: https://github.com/troolee/gridstack.js/pull/272
-h.prototype.getNodeDataByDOMEl=function(a){return b.find(this.nodes,function(b){return a.get(0)===b.el.get(0)})},h.prototype._fixCollisions=function(a){this._sortNodes(-1);var c=a,d=Boolean(b.find(this.nodes,function(a){return a.locked}));for(this["float"]||d||(c={x:0,y:a.y,width:this.width,height:a.height});;){var e=b.find(this.nodes,b.bind(f._collisionNodeCheck,{node:a,nn:c}));if("undefined"==typeof e)return;this.moveNode(e,e.x,a.y+a.height,e.width,e.height,!0)}},h.prototype.isAreaEmpty=function(a,c,d,e){var g={x:a||0,y:c||0,width:d||1,height:e||1},h=b.find(this.nodes,b.bind(function(a){return f.isIntercepted(a,g)},this));return null===h||"undefined"==typeof h},h.prototype._sortNodes=function(a){this.nodes=f.sort(this.nodes,a,this.width)},h.prototype._packNodes=function(){this._sortNodes(),this["float"]?b.each(this.nodes,b.bind(function(a,c){if(!a._updating&&"undefined"!=typeof a._origY&&a.y!=a._origY)for(var d=a.y;d>=a._origY;){var e=b.chain(this.nodes).find(b.bind(f._didCollide,{n:a,newY:d})).value();e||(a._dirty=!0,a.y=d),--d}},this)):b.each(this.nodes,b.bind(function(a,c){if(!a.locked)for(;a.y>0;){var d=a.y-1,e=0===c;if(c>0){var g=b.chain(this.nodes).take(c).find(b.bind(f._didCollide,{n:a,newY:d})).value();e="undefined"==typeof g}if(!e)break;a._dirty=a.y!=d,a.y=d}},this))},h.prototype._prepareNode=function(a,c){return a=b.defaults(a||{},{width:1,height:1,x:0,y:0}),a.x=parseInt(""+a.x),a.y=parseInt(""+a.y),a.width=parseInt(""+a.width),a.height=parseInt(""+a.height),a.autoPosition=a.autoPosition||!1,a.noResize=a.noResize||!1,a.noMove=a.noMove||!1,a.width>this.width?a.width=this.width:a.width<1&&(a.width=1),a.height<1&&(a.height=1),a.x<0&&(a.x=0),a.x+a.width>this.width&&(c?a.width=this.width-a.x:a.x=this.width-a.width),a.y<0&&(a.y=0),a},h.prototype._notify=function(){var a=Array.prototype.slice.call(arguments,0);if(a[0]="undefined"==typeof a[0]?[]:[a[0]],a[1]="undefined"==typeof a[1]||a[1],!this._updateCounter){var b=a[0].concat(this.getDirtyNodes());this.onchange(b,a[1])}},h.prototype.cleanNodes=function(){this._updateCounter||b.each(this.nodes,function(a){a._dirty=!1})},h.prototype.getDirtyNodes=function(){return b.filter(this.nodes,function(a){return a._dirty})},h.prototype.addNode=function(a,c){if(a=this._prepareNode(a),"undefined"!=typeof a.maxWidth&&(a.width=Math.min(a.width,a.maxWidth)),"undefined"!=typeof a.maxHeight&&(a.height=Math.min(a.height,a.maxHeight)),"undefined"!=typeof a.minWidth&&(a.width=Math.max(a.width,a.minWidth)),"undefined"!=typeof a.minHeight&&(a.height=Math.max(a.height,a.minHeight)),a._id=++g,a._dirty=!0,a.autoPosition){this._sortNodes();for(var d=0;;++d){var e=d%this.width,h=Math.floor(d/this.width);if(!(e+a.width>this.width||b.find(this.nodes,b.bind(f._isAddNodeIntercepted,{x:e,y:h,node:a})))){a.x=e,a.y=h;break}}}return this.nodes.push(a),"undefined"!=typeof c&&c&&this._addedNodes.push(b.clone(a)),this._fixCollisions(a),this._packNodes(),this._notify(),a},h.prototype.removeNode=function(a,c){c="undefined"==typeof c||c,this._removedNodes.push(b.clone(a)),a._id=null,this.nodes=b.without(this.nodes,a),this._packNodes(),this._notify(a,c)},h.prototype.canMoveNode=function(c,d,e,f,g){var i=Boolean(b.find(this.nodes,function(a){return a.locked}));if(!this.height&&!i)return!0;var j,k=new h(this.width,null,this["float"],0,b.map(this.nodes,function(b){return b==c?j=a.extend({},b):a.extend({},b)}));if("undefined"==typeof j)return!0;k.moveNode(j,d,e,f,g);var l=!0;return i&&(l&=!Boolean(b.find(k.nodes,function(a){return a!=j&&Boolean(a.locked)&&Boolean(a._dirty)}))),this.height&&(l&=k.getGridHeight()<=this.height),l},h.prototype.canBePlacedWithRespectToHeight=function(c){if(!this.height)return!0;var d=new h(this.width,null,this["float"],0,b.map(this.nodes,function(b){return a.extend({},b)}));return d.addNode(c),d.getGridHeight()<=this.height},h.prototype.moveNode=function(a,b,c,d,e,f){if("number"!=typeof b&&(b=a.x),"number"!=typeof c&&(c=a.y),"number"!=typeof d&&(d=a.width),"number"!=typeof e&&(e=a.height),"undefined"!=typeof a.maxWidth&&(d=Math.min(d,a.maxWidth)),"undefined"!=typeof a.maxHeight&&(e=Math.min(e,a.maxHeight)),"undefined"!=typeof a.minWidth&&(d=Math.max(d,a.minWidth)),"undefined"!=typeof a.minHeight&&(e=Math.max(e,a.minHeight)),a.x==b&&a.y==c&&a.width==d&&a.height==e)return a;var g=a.width!=d;return a._dirty=!0,a.x=b,a.y=c,a.width=d,a.height=e,a=this._prepareNode(a,g),this._fixCollisions(a),f||(this._packNodes(),this._notify()),a},h.prototype.getGridHeight=function(){return b.reduce(this.nodes,function(a,b){return Math.max(a,b.y+b.height)},0)},h.prototype.beginUpdate=function(a){b.each(this.nodes,function(a){a._origY=a.y}),a._updating=!0},h.prototype.endUpdate=function(){b.each(this.nodes,function(a){a._origY=a.y});var a=b.find(this.nodes,function(a){return a._updating});a&&(a._updating=!1)};var i=function(c,d){var f,g,i=this;d=d||{},this.container=a(c),
-// jscs:disable requireCamelCaseOrUpperCaseIdentifiers
-"undefined"!=typeof d.handle_class&&(d.handleClass=d.handle_class,e("handle_class","handleClass")),"undefined"!=typeof d.item_class&&(d.itemClass=d.item_class,e("item_class","itemClass")),"undefined"!=typeof d.placeholder_class&&(d.placeholderClass=d.placeholder_class,e("placeholder_class","placeholderClass")),"undefined"!=typeof d.placeholder_text&&(d.placeholderText=d.placeholder_text,e("placeholder_text","placeholderText")),"undefined"!=typeof d.cell_height&&(d.cellHeight=d.cell_height,e("cell_height","cellHeight")),"undefined"!=typeof d.vertical_margin&&(d.verticalMargin=d.vertical_margin,e("vertical_margin","verticalMargin")),"undefined"!=typeof d.min_width&&(d.minWidth=d.min_width,e("min_width","minWidth")),"undefined"!=typeof d.static_grid&&(d.staticGrid=d.static_grid,e("static_grid","staticGrid")),"undefined"!=typeof d.is_nested&&(d.isNested=d.is_nested,e("is_nested","isNested")),"undefined"!=typeof d.always_show_resize_handle&&(d.alwaysShowResizeHandle=d.always_show_resize_handle,e("always_show_resize_handle","alwaysShowResizeHandle")),
-// jscs:enable requireCamelCaseOrUpperCaseIdentifiers
-d.itemClass=d.itemClass||"grid-stack-item";var j=this.container.closest("."+d.itemClass).length>0;if(this.opts=b.defaults(d||{},{width:parseInt(this.container.attr("data-gs-width"))||12,height:parseInt(this.container.attr("data-gs-height"))||0,itemClass:"grid-stack-item",placeholderClass:"grid-stack-placeholder",placeholderText:"",handle:".grid-stack-item-content",handleClass:null,cellHeight:60,verticalMargin:20,auto:!0,minWidth:768,"float":!1,staticGrid:!1,_class:"grid-stack-instance-"+(1e4*Math.random()).toFixed(0),animate:Boolean(this.container.attr("data-gs-animate"))||!1,alwaysShowResizeHandle:d.alwaysShowResizeHandle||!1,resizable:b.defaults(d.resizable||{},{autoHide:!d.alwaysShowResizeHandle,handles:"se"}),draggable:b.defaults(d.draggable||{},{handle:(d.handleClass?"."+d.handleClass:d.handle?d.handle:"")||".grid-stack-item-content",scroll:!1,appendTo:"body"}),disableDrag:d.disableDrag||!1,disableResize:d.disableResize||!1,rtl:"auto",removable:!1,removeTimeout:2e3,verticalMarginUnit:"px",cellHeightUnit:"px"}),"auto"===this.opts.rtl&&(this.opts.rtl="rtl"===this.container.css("direction")),this.opts.rtl&&this.container.addClass("grid-stack-rtl"),this.opts.isNested=j,g="auto"===this.opts.cellHeight,g?i.cellHeight(i.cellWidth(),!0):this.cellHeight(this.opts.cellHeight,!0),this.verticalMargin(this.opts.verticalMargin,!0),this.container.addClass(this.opts._class),this._setStaticClass(),j&&this.container.addClass("grid-stack-nested"),this._initStyles(),this.grid=new h(this.opts.width,function(a,c){c="undefined"==typeof c||c;var d=0;b.each(a,function(a){c&&null===a._id?a.el&&a.el.remove():(a.el.attr("data-gs-x",a.x).attr("data-gs-y",a.y).attr("data-gs-width",a.width).attr("data-gs-height",a.height),d=Math.max(d,a.y+a.height))}),i._updateStyles(d+10)},this.opts["float"],this.opts.height),this.opts.auto){var k=[],l=this;this.container.children("."+this.opts.itemClass+":not(."+this.opts.placeholderClass+")").each(function(b,c){c=a(c),k.push({el:c,i:parseInt(c.attr("data-gs-x"))+parseInt(c.attr("data-gs-y"))*l.opts.width})}),b.chain(k).sortBy(function(a){return a.i}).each(function(a){i._prepareElement(a.el)}).value()}if(this.setAnimation(this.opts.animate),this.placeholder=a('<div class="'+this.opts.placeholderClass+" "+this.opts.itemClass+'"><div class="placeholder-content">'+this.opts.placeholderText+"</div></div>").hide(),this._updateContainerHeight(),this._updateHeightsOnResize=b.throttle(function(){i.cellHeight(i.cellWidth(),!1)},100),this.onResizeHandler=function(){if(g&&i._updateHeightsOnResize(),i._isOneColumnMode()){if(f)return;f=!0,i.grid._sortNodes(),b.each(i.grid.nodes,function(a){i.container.append(a.el),i.opts.staticGrid||((a.noMove||i.opts.disableDrag)&&a.el.draggable("disable"),(a.noResize||i.opts.disableResize)&&a.el.resizable("disable"),a.el.trigger("resize"))})}else{if(!f)return;if(f=!1,i.opts.staticGrid)return;b.each(i.grid.nodes,function(a){a.noMove||i.opts.disableDrag||a.el.draggable("enable"),a.noResize||i.opts.disableResize||a.el.resizable("enable"),a.el.trigger("resize")})}},a(window).resize(this.onResizeHandler),this.onResizeHandler(),!i.opts.staticGrid&&"string"==typeof i.opts.removable){var m=a(i.opts.removable);m.data("droppable")||m.droppable({accept:"."+i.opts.itemClass}),m.on("dropover",function(b,c){var d=a(c.draggable),e=d.data("_gridstack_node");e._grid===i&&i._setupRemovingTimeout(d)}).on("dropout",function(b,c){var d=a(c.draggable),e=d.data("_gridstack_node");e._grid===i&&i._clearRemovingTimeout(d)})}if(!i.opts.staticGrid&&i.opts.acceptWidgets){var n=null,o=function(a,b){var c=n,d=c.data("_gridstack_node"),e=i.getCellFromPixel(b.offset,!0),f=Math.max(0,e.x),g=Math.max(0,e.y);if(d._added){if(!i.grid.canMoveNode(d,f,g))return;i.grid.moveNode(d,f,g),i._updateContainerHeight()}else d._added=!0,d.el=c,d.x=f,d.y=g,i.grid.cleanNodes(),i.grid.beginUpdate(d),i.grid.addNode(d),i.container.append(i.placeholder),i.placeholder.attr("data-gs-x",d.x).attr("data-gs-y",d.y).attr("data-gs-width",d.width).attr("data-gs-height",d.height).show(),d.el=i.placeholder,d._beforeDragX=d.x,d._beforeDragY=d.y,i._updateContainerHeight()};a(i.container).droppable({accept:function(b){b=a(b);var c=b.data("_gridstack_node");return(!c||c._grid!==i)&&b.is(i.opts.acceptWidgets===!0?".grid-stack-item":i.opts.acceptWidgets)},over:function(b,c){var d=(i.container.offset(),a(c.draggable)),e=i.cellWidth(),f=i.cellHeight(),g=d.data("_gridstack_node"),h=g?g.width:Math.ceil(d.outerWidth()/e),j=g?g.height:Math.ceil(d.outerHeight()/f);n=d;var k=i.grid._prepareNode({width:h,height:j,_added:!1,_temporary:!0});d.data("_gridstack_node",k),d.data("_gridstack_node_orig",g),d.on("drag",o)},out:function(b,c){var d=a(c.draggable);d.unbind("drag",o);var e=d.data("_gridstack_node");e.el=null,i.grid.removeNode(e),i.placeholder.detach(),i._updateContainerHeight(),d.data("_gridstack_node",d.data("_gridstack_node_orig"))},drop:function(b,c){i.placeholder.detach();var d=a(c.draggable).data("_gridstack_node");d._grid=i;var e=a(c.draggable).clone(!1);e.data("_gridstack_node",d),a(c.draggable).remove(),d.el=e,i.placeholder.hide(),e.attr("data-gs-x",d.x).attr("data-gs-y",d.y).attr("data-gs-width",d.width).attr("data-gs-height",d.height).addClass(i.opts.itemClass).removeAttr("style").enableSelection().removeData("draggable").removeClass("ui-draggable ui-draggable-dragging ui-draggable-disabled").unbind("drag",o),i.container.append(e),i._prepareElementsByNode(e,d),i._updateContainerHeight(),i._triggerChangeEvent(),i.grid.endUpdate()}})}};
-// jscs:disable requireCamelCaseOrUpperCaseIdentifiers
-// jscs:enable requireCamelCaseOrUpperCaseIdentifiers
-return i.prototype._triggerChangeEvent=function(a){var b=this.grid.getDirtyNodes(),c=!1,d=[];b&&b.length&&(d.push(b),c=!0),(c||a===!0)&&this.container.trigger("change",d)},i.prototype._triggerAddEvent=function(){this.grid._addedNodes&&this.grid._addedNodes.length>0&&(this.container.trigger("added",[b.map(this.grid._addedNodes,b.clone)]),this.grid._addedNodes=[])},i.prototype._triggerRemoveEvent=function(){this.grid._removedNodes&&this.grid._removedNodes.length>0&&(this.container.trigger("removed",[b.map(this.grid._removedNodes,b.clone)]),this.grid._removedNodes=[])},i.prototype._initStyles=function(){this._stylesId&&f.removeStylesheet(this._stylesId),this._stylesId="gridstack-style-"+(1e5*Math.random()).toFixed(),this._styles=f.createStylesheet(this._stylesId),null!==this._styles&&(this._styles._max=0)},i.prototype._updateStyles=function(a){if(null!==this._styles&&"undefined"!=typeof this._styles){var b,c="."+this.opts._class+" ."+this.opts.itemClass,d=this;if("undefined"==typeof a&&(a=this._styles._max,this._initStyles(),this._updateContainerHeight()),this.opts.cellHeight&&!(0!==this._styles._max&&a<=this._styles._max)&&(b=this.opts.verticalMargin&&this.opts.cellHeightUnit!==this.opts.verticalMarginUnit?function(a,b){return a&&b?"calc("+(d.opts.cellHeight*a+d.opts.cellHeightUnit)+" + "+(d.opts.verticalMargin*b+d.opts.verticalMarginUnit)+")":d.opts.cellHeight*a+d.opts.verticalMargin*b+d.opts.cellHeightUnit}:function(a,b){return d.opts.cellHeight*a+d.opts.verticalMargin*b+d.opts.cellHeightUnit},0===this._styles._max&&f.insertCSSRule(this._styles,c,"min-height: "+b(1,0)+";",0),a>this._styles._max)){for(var e=this._styles._max;e<a;++e)f.insertCSSRule(this._styles,c+'[data-gs-height="'+(e+1)+'"]',"height: "+b(e+1,e)+";",e),f.insertCSSRule(this._styles,c+'[data-gs-min-height="'+(e+1)+'"]',"min-height: "+b(e+1,e)+";",e),f.insertCSSRule(this._styles,c+'[data-gs-max-height="'+(e+1)+'"]',"max-height: "+b(e+1,e)+";",e),f.insertCSSRule(this._styles,c+'[data-gs-y="'+e+'"]',"top: "+b(e,e)+";",e);this._styles._max=a}}},i.prototype._updateContainerHeight=function(){if(!this.grid._updateCounter){var a=this.grid.getGridHeight();this.container.attr("data-gs-current-height",a),this.opts.cellHeight&&(this.opts.verticalMargin?this.opts.cellHeightUnit===this.opts.verticalMarginUnit?this.container.css("height",a*(this.opts.cellHeight+this.opts.verticalMargin)-this.opts.verticalMargin+this.opts.cellHeightUnit):this.container.css("height","calc("+(a*this.opts.cellHeight+this.opts.cellHeightUnit)+" + "+(a*(this.opts.verticalMargin-1)+this.opts.verticalMarginUnit)+")"):this.container.css("height",a*this.opts.cellHeight+this.opts.cellHeightUnit))}},i.prototype._isOneColumnMode=function(){return(window.innerWidth||document.documentElement.clientWidth||document.body.clientWidth)<=this.opts.minWidth},i.prototype._setupRemovingTimeout=function(b){var c=this,d=a(b).data("_gridstack_node");!d._removeTimeout&&c.opts.removable&&(d._removeTimeout=setTimeout(function(){b.addClass("grid-stack-item-removing"),d._isAboutToRemove=!0},c.opts.removeTimeout))},i.prototype._clearRemovingTimeout=function(b){var c=a(b).data("_gridstack_node");c._removeTimeout&&(clearTimeout(c._removeTimeout),c._removeTimeout=null,b.removeClass("grid-stack-item-removing"),c._isAboutToRemove=!1)},i.prototype._prepareElementsByNode=function(c,d){if("undefined"!=typeof a.ui){var e,f,g=this,h=function(a,b){var h,i,j=Math.round(b.position.left/e),k=Math.floor((b.position.top+f/2)/f);if("drag"!=a.type&&(h=Math.round(b.size.width/e),i=Math.round(b.size.height/f)),"drag"==a.type)j<0||j>=g.grid.width||k<0?(g.opts.removable===!0&&g._setupRemovingTimeout(c),j=d._beforeDragX,k=d._beforeDragY,g.placeholder.detach(),g.placeholder.hide(),g.grid.removeNode(d),g._updateContainerHeight(),d._temporaryRemoved=!0):(g._clearRemovingTimeout(c),d._temporaryRemoved&&(g.grid.addNode(d),g.placeholder.attr("data-gs-x",j).attr("data-gs-y",k).attr("data-gs-width",h).attr("data-gs-height",i).show(),g.container.append(g.placeholder),d.el=g.placeholder,d._temporaryRemoved=!1));else if("resize"==a.type&&j<0)return;g.grid.canMoveNode(d,j,k,h,i)&&(g.grid.moveNode(d,j,k,h,i),g._updateContainerHeight())},i=function(b,h){g.container.append(g.placeholder);var i=a(this);g.grid.cleanNodes(),g.grid.beginUpdate(d),e=g.cellWidth();var j=Math.ceil(i.outerHeight()/i.attr("data-gs-height"));f=g.container.height()/parseInt(g.container.attr("data-gs-current-height")),g.placeholder.attr("data-gs-x",i.attr("data-gs-x")).attr("data-gs-y",i.attr("data-gs-y")).attr("data-gs-width",i.attr("data-gs-width")).attr("data-gs-height",i.attr("data-gs-height")).show(),d.el=g.placeholder,d._beforeDragX=d.x,d._beforeDragY=d.y,c.resizable("option","minWidth",e*(d.minWidth||1)),c.resizable("option","minHeight",j*(d.minHeight||1)),"resizestart"==b.type&&i.find(".grid-stack-item").trigger("resizestart")},j=function(b,e){var f=a(this);if(f.data("_gridstack_node")){var h=!1;g.placeholder.detach(),d.el=f,g.placeholder.hide(),d._isAboutToRemove?(h=!0,c.removeData("_gridstack_node"),c.remove()):(g._clearRemovingTimeout(c),d._temporaryRemoved?(f.attr("data-gs-x",d._beforeDragX).attr("data-gs-y",d._beforeDragY).attr("data-gs-width",d.width).attr("data-gs-height",d.height).removeAttr("style"),d.x=d._beforeDragX,d.y=d._beforeDragY,g.grid.addNode(d)):f.attr("data-gs-x",d.x).attr("data-gs-y",d.y).attr("data-gs-width",d.width).attr("data-gs-height",d.height).removeAttr("style")),g._updateContainerHeight(),g._triggerChangeEvent(h),g.grid.endUpdate();var i=f.find(".grid-stack");i.length&&"resizestop"==b.type&&(i.each(function(b,c){a(c).data("gridstack").onResizeHandler()}),f.find(".grid-stack-item").trigger("resizestop"))}};c.draggable(b.extend({},this.opts.draggable,{containment:this.opts.isNested?this.container.parent():null,start:i,stop:j,drag:h})).resizable(b.extend({},this.opts.resizable,{start:i,stop:j,resize:h})),(d.noMove||this._isOneColumnMode()||this.opts.disableDrag)&&c.draggable("disable"),(d.noResize||this._isOneColumnMode()||this.opts.disableResize)&&c.resizable("disable"),c.attr("data-gs-locked",d.locked?"yes":null)}},i.prototype._prepareElement=function(b,c){c="undefined"!=typeof c&&c;var d=this;b=a(b),b.addClass(this.opts.itemClass);var e=d.grid.addNode({x:b.attr("data-gs-x"),y:b.attr("data-gs-y"),width:b.attr("data-gs-width"),height:b.attr("data-gs-height"),maxWidth:b.attr("data-gs-max-width"),minWidth:b.attr("data-gs-min-width"),maxHeight:b.attr("data-gs-max-height"),minHeight:b.attr("data-gs-min-height"),autoPosition:f.toBool(b.attr("data-gs-auto-position")),noResize:f.toBool(b.attr("data-gs-no-resize")),noMove:f.toBool(b.attr("data-gs-no-move")),locked:f.toBool(b.attr("data-gs-locked")),el:b,id:b.attr("data-gs-id"),_grid:d},c);b.data("_gridstack_node",e),this._prepareElementsByNode(b,e)},i.prototype.setAnimation=function(a){a?this.container.addClass("grid-stack-animate"):this.container.removeClass("grid-stack-animate")},i.prototype.addWidget=function(b,c,d,e,f,g,h,i,j,k,l){return b=a(b),"undefined"!=typeof c&&b.attr("data-gs-x",c),"undefined"!=typeof d&&b.attr("data-gs-y",d),"undefined"!=typeof e&&b.attr("data-gs-width",e),"undefined"!=typeof f&&b.attr("data-gs-height",f),"undefined"!=typeof g&&b.attr("data-gs-auto-position",g?"yes":null),"undefined"!=typeof h&&b.attr("data-gs-min-width",h),"undefined"!=typeof i&&b.attr("data-gs-max-width",i),"undefined"!=typeof j&&b.attr("data-gs-min-height",j),"undefined"!=typeof k&&b.attr("data-gs-max-height",k),"undefined"!=typeof l&&b.attr("data-gs-id",l),this.container.append(b),this._prepareElement(b,!0),this._triggerAddEvent(),this._updateContainerHeight(),this._triggerChangeEvent(!0),b},i.prototype.makeWidget=function(b){return b=a(b),this._prepareElement(b,!0),this._triggerAddEvent(),this._updateContainerHeight(),this._triggerChangeEvent(!0),b},i.prototype.willItFit=function(a,b,c,d,e){var f={x:a,y:b,width:c,height:d,autoPosition:e};return this.grid.canBePlacedWithRespectToHeight(f)},i.prototype.removeWidget=function(b,c){c="undefined"==typeof c||c,b=a(b);var d=b.data("_gridstack_node");
-// For Meteor support: https://github.com/troolee/gridstack.js/pull/272
-d||(d=this.grid.getNodeDataByDOMEl(b)),this.grid.removeNode(d,c),b.removeData("_gridstack_node"),this._updateContainerHeight(),c&&b.remove(),this._triggerChangeEvent(!0),this._triggerRemoveEvent()},i.prototype.removeAll=function(a){b.each(this.grid.nodes,b.bind(function(b){this.removeWidget(b.el,a)},this)),this.grid.nodes=[],this._updateContainerHeight()},i.prototype.destroy=function(b){a(window).off("resize",this.onResizeHandler),this.disable(),"undefined"==typeof b||b?this.container.remove():(this.removeAll(!1),this.container.removeData("gridstack")),f.removeStylesheet(this._stylesId),this.grid&&(this.grid=null)},i.prototype.resizable=function(b,c){var d=this;return b=a(b),b.each(function(b,e){e=a(e);var f=e.data("_gridstack_node");"undefined"!=typeof f&&null!==f&&"undefined"!=typeof a.ui&&(f.noResize=!c,f.noResize||d._isOneColumnMode()?e.resizable("disable"):e.resizable("enable"))}),this},i.prototype.movable=function(b,c){var d=this;return b=a(b),b.each(function(b,e){e=a(e);var f=e.data("_gridstack_node");"undefined"!=typeof f&&null!==f&&"undefined"!=typeof a.ui&&(f.noMove=!c,f.noMove||d._isOneColumnMode()?(e.draggable("disable"),e.removeClass("ui-draggable-handle")):(e.draggable("enable"),e.addClass("ui-draggable-handle")))}),this},i.prototype.enableMove=function(a,b){this.movable(this.container.children("."+this.opts.itemClass),a),b&&(this.opts.disableDrag=!a)},i.prototype.enableResize=function(a,b){this.resizable(this.container.children("."+this.opts.itemClass),a),b&&(this.opts.disableResize=!a)},i.prototype.disable=function(){this.movable(this.container.children("."+this.opts.itemClass),!1),this.resizable(this.container.children("."+this.opts.itemClass),!1),this.container.trigger("disable")},i.prototype.enable=function(){this.movable(this.container.children("."+this.opts.itemClass),!0),this.resizable(this.container.children("."+this.opts.itemClass),!0),this.container.trigger("enable")},i.prototype.locked=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!==e&&(e.locked=c||!1,d.attr("data-gs-locked",e.locked?"yes":null))}),this},i.prototype.maxHeight=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!==e&&(isNaN(c)||(e.maxHeight=c||!1,d.attr("data-gs-max-height",c)))}),this},i.prototype.minHeight=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!==e&&(isNaN(c)||(e.minHeight=c||!1,d.attr("data-gs-min-height",c)))}),this},i.prototype.maxWidth=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!==e&&(isNaN(c)||(e.maxWidth=c||!1,d.attr("data-gs-max-width",c)))}),this},i.prototype.minWidth=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");"undefined"!=typeof e&&null!==e&&(isNaN(c)||(e.minWidth=c||!1,d.attr("data-gs-min-width",c)))}),this},i.prototype._updateElement=function(b,c){b=a(b).first();var d=b.data("_gridstack_node");if("undefined"!=typeof d&&null!==d){var e=this;e.grid.cleanNodes(),e.grid.beginUpdate(d),c.call(this,b,d),e._updateContainerHeight(),e._triggerChangeEvent(),e.grid.endUpdate()}},i.prototype.resize=function(a,b,c){this._updateElement(a,function(a,d){b=null!==b&&"undefined"!=typeof b?b:d.width,c=null!==c&&"undefined"!=typeof c?c:d.height,this.grid.moveNode(d,d.x,d.y,b,c)})},i.prototype.move=function(a,b,c){this._updateElement(a,function(a,d){b=null!==b&&"undefined"!=typeof b?b:d.x,c=null!==c&&"undefined"!=typeof c?c:d.y,this.grid.moveNode(d,b,c,d.width,d.height)})},i.prototype.update=function(a,b,c,d,e){this._updateElement(a,function(a,f){b=null!==b&&"undefined"!=typeof b?b:f.x,c=null!==c&&"undefined"!=typeof c?c:f.y,d=null!==d&&"undefined"!=typeof d?d:f.width,e=null!==e&&"undefined"!=typeof e?e:f.height,this.grid.moveNode(f,b,c,d,e)})},i.prototype.verticalMargin=function(a,b){if("undefined"==typeof a)return this.opts.verticalMargin;var c=f.parseHeight(a);this.opts.verticalMarginUnit===c.unit&&this.opts.height===c.height||(this.opts.verticalMarginUnit=c.unit,this.opts.verticalMargin=c.height,b||this._updateStyles())},i.prototype.cellHeight=function(a,b){if("undefined"==typeof a){if(this.opts.cellHeight)return this.opts.cellHeight;var c=this.container.children("."+this.opts.itemClass).first();return Math.ceil(c.outerHeight()/c.attr("data-gs-height"))}var d=f.parseHeight(a);this.opts.cellHeightUnit===d.heightUnit&&this.opts.height===d.height||(this.opts.cellHeightUnit=d.unit,this.opts.cellHeight=d.height,b||this._updateStyles())},i.prototype.cellWidth=function(){return Math.round(this.container.outerWidth()/this.opts.width)},i.prototype.getCellFromPixel=function(a,b){var c="undefined"!=typeof b&&b?this.container.offset():this.container.position(),d=a.left-c.left,e=a.top-c.top,f=Math.floor(this.container.width()/this.opts.width),g=Math.floor(this.container.height()/parseInt(this.container.attr("data-gs-current-height")));return{x:Math.floor(d/f),y:Math.floor(e/g)}},i.prototype.batchUpdate=function(){this.grid.batchUpdate()},i.prototype.commit=function(){this.grid.commit(),this._updateContainerHeight()},i.prototype.isAreaEmpty=function(a,b,c,d){return this.grid.isAreaEmpty(a,b,c,d)},i.prototype.setStatic=function(a){this.opts.staticGrid=a===!0,this.enableMove(!a),this.enableResize(!a),this._setStaticClass()},i.prototype._setStaticClass=function(){var a="grid-stack-static";this.opts.staticGrid===!0?this.container.addClass(a):this.container.removeClass(a)},i.prototype._updateNodeWidths=function(a,b){this.grid._sortNodes(),this.grid.batchUpdate();for(var c={},d=0;d<this.grid.nodes.length;d++)c=this.grid.nodes[d],this.update(c.el,Math.round(c.x*b/a),void 0,Math.round(c.width*b/a),void 0);this.grid.commit()},i.prototype.setGridWidth=function(a,b){this.container.removeClass("grid-stack-"+this.opts.width),b!==!0&&this._updateNodeWidths(this.opts.width,a),this.opts.width=a,this.grid.width=a,this.container.addClass("grid-stack-"+a)},h.prototype.batch_update=d(h.prototype.batchUpdate),h.prototype._fix_collisions=d(h.prototype._fixCollisions,"_fix_collisions","_fixCollisions"),h.prototype.is_area_empty=d(h.prototype.isAreaEmpty,"is_area_empty","isAreaEmpty"),h.prototype._sort_nodes=d(h.prototype._sortNodes,"_sort_nodes","_sortNodes"),h.prototype._pack_nodes=d(h.prototype._packNodes,"_pack_nodes","_packNodes"),h.prototype._prepare_node=d(h.prototype._prepareNode,"_prepare_node","_prepareNode"),h.prototype.clean_nodes=d(h.prototype.cleanNodes,"clean_nodes","cleanNodes"),h.prototype.get_dirty_nodes=d(h.prototype.getDirtyNodes,"get_dirty_nodes","getDirtyNodes"),h.prototype.add_node=d(h.prototype.addNode,"add_node","addNode, "),h.prototype.remove_node=d(h.prototype.removeNode,"remove_node","removeNode"),h.prototype.can_move_node=d(h.prototype.canMoveNode,"can_move_node","canMoveNode"),h.prototype.move_node=d(h.prototype.moveNode,"move_node","moveNode"),h.prototype.get_grid_height=d(h.prototype.getGridHeight,"get_grid_height","getGridHeight"),h.prototype.begin_update=d(h.prototype.beginUpdate,"begin_update","beginUpdate"),h.prototype.end_update=d(h.prototype.endUpdate,"end_update","endUpdate"),h.prototype.can_be_placed_with_respect_to_height=d(h.prototype.canBePlacedWithRespectToHeight,"can_be_placed_with_respect_to_height","canBePlacedWithRespectToHeight"),i.prototype._trigger_change_event=d(i.prototype._triggerChangeEvent,"_trigger_change_event","_triggerChangeEvent"),i.prototype._init_styles=d(i.prototype._initStyles,"_init_styles","_initStyles"),i.prototype._update_styles=d(i.prototype._updateStyles,"_update_styles","_updateStyles"),i.prototype._update_container_height=d(i.prototype._updateContainerHeight,"_update_container_height","_updateContainerHeight"),i.prototype._is_one_column_mode=d(i.prototype._isOneColumnMode,"_is_one_column_mode","_isOneColumnMode"),i.prototype._prepare_element=d(i.prototype._prepareElement,"_prepare_element","_prepareElement"),i.prototype.set_animation=d(i.prototype.setAnimation,"set_animation","setAnimation"),i.prototype.add_widget=d(i.prototype.addWidget,"add_widget","addWidget"),i.prototype.make_widget=d(i.prototype.makeWidget,"make_widget","makeWidget"),i.prototype.will_it_fit=d(i.prototype.willItFit,"will_it_fit","willItFit"),i.prototype.remove_widget=d(i.prototype.removeWidget,"remove_widget","removeWidget"),i.prototype.remove_all=d(i.prototype.removeAll,"remove_all","removeAll"),i.prototype.min_height=d(i.prototype.minHeight,"min_height","minHeight"),i.prototype.min_width=d(i.prototype.minWidth,"min_width","minWidth"),i.prototype._update_element=d(i.prototype._updateElement,"_update_element","_updateElement"),i.prototype.cell_height=d(i.prototype.cellHeight,"cell_height","cellHeight"),i.prototype.cell_width=d(i.prototype.cellWidth,"cell_width","cellWidth"),i.prototype.get_cell_from_pixel=d(i.prototype.getCellFromPixel,"get_cell_from_pixel","getCellFromPixel"),i.prototype.batch_update=d(i.prototype.batchUpdate,"batch_update","batchUpdate"),i.prototype.is_area_empty=d(i.prototype.isAreaEmpty,"is_area_empty","isAreaEmpty"),i.prototype.set_static=d(i.prototype.setStatic,"set_static","setStatic"),i.prototype._set_static_class=d(i.prototype._setStaticClass,"_set_static_class","_setStaticClass"),c.GridStackUI=i,c.GridStackUI.Utils=f,c.GridStackUI.Engine=h,a.fn.gridstack=function(b){return this.each(function(){var c=a(this);c.data("gridstack")||c.data("gridstack",new i(this,b))})},c.GridStackUI});
+!function(a){if("function"==typeof define&&define.amd)define(["jquery","lodash"],a);else if("undefined"!=typeof exports){try{jQuery=require("jquery")}catch(a){}try{_=require("lodash")}catch(a){}a(jQuery,_)}else a(jQuery,_)}(function(a,b){function c(a){this.grid=a}var d=window,e=function(a,b,c){var d=function(){return console.warn("gridstack.js: Function `"+b+"` is deprecated as of v0.2.5 and has been replaced with `"+c+"`. It will be **completely** removed in v1.0."),a.apply(this,arguments)};return d.prototype=a.prototype,d},f=function(a,b){console.warn("gridstack.js: Option `"+a+"` is deprecated as of v0.2.5 and has been replaced with `"+b+"`. It will be **completely** removed in v1.0.")},g={isIntercepted:function(a,b){return!(a.x+a.width<=b.x||b.x+b.width<=a.x||a.y+a.height<=b.y||b.y+b.height<=a.y)},sort:function(a,c,d){return d=d||b.chain(a).map(function(a){return a.x+a.width}).max().value(),c=-1!=c?1:-1,b.sortBy(a,function(a){return c*(a.x+a.y*d)})},createStylesheet:function(a){var b=document.createElement("style");return b.setAttribute("type","text/css"),b.setAttribute("data-gs-style-id",a),b.styleSheet?b.styleSheet.cssText="":b.appendChild(document.createTextNode("")),document.getElementsByTagName("head")[0].appendChild(b),b.sheet},removeStylesheet:function(b){a("STYLE[data-gs-style-id="+b+"]").remove()},insertCSSRule:function(a,b,c,d){"function"==typeof a.insertRule?a.insertRule(b+"{"+c+"}",d):"function"==typeof a.addRule&&a.addRule(b,c,d)},toBool:function(a){return"boolean"==typeof a?a:"string"==typeof a?!(""===(a=a.toLowerCase())||"no"==a||"false"==a||"0"==a):Boolean(a)},_collisionNodeCheck:function(a){return a!=this.node&&g.isIntercepted(a,this.nn)},_didCollide:function(a){return g.isIntercepted({x:this.n.x,y:this.newY,width:this.n.width,height:this.n.height},a)},_isAddNodeIntercepted:function(a){return g.isIntercepted({x:this.x,y:this.y,width:this.node.width,height:this.node.height},a)},parseHeight:function(a){var c=a,d="px";if(c&&b.isString(c)){var e=c.match(/^(-[0-9]+\.[0-9]+|[0-9]*\.[0-9]+|-[0-9]+|[0-9]+)(px|em|rem|vh|vw)?$/);if(!e)throw new Error("Invalid height");d=e[2]||"px",c=parseFloat(e[1])}return{height:c,unit:d}}};g.is_intercepted=e(g.isIntercepted,"is_intercepted","isIntercepted"),g.create_stylesheet=e(g.createStylesheet,"create_stylesheet","createStylesheet"),g.remove_stylesheet=e(g.removeStylesheet,"remove_stylesheet","removeStylesheet"),g.insert_css_rule=e(g.insertCSSRule,"insert_css_rule","insertCSSRule"),c.registeredPlugins=[],c.registerPlugin=function(a){c.registeredPlugins.push(a)},c.prototype.resizable=function(a,b){return this},c.prototype.draggable=function(a,b){return this},c.prototype.droppable=function(a,b){return this},c.prototype.isDroppable=function(a){return!1},c.prototype.on=function(a,b,c){return this};var h=0,i=function(a,b,c,d,e){this.width=a,this.float=c||!1,this.height=d||0,this.nodes=e||[],this.onchange=b||function(){},this._updateCounter=0,this._float=this.float,this._addedNodes=[],this._removedNodes=[]};i.prototype.batchUpdate=function(){this._updateCounter=1,this.float=!0},i.prototype.commit=function(){0!==this._updateCounter&&(this._updateCounter=0,this.float=this._float,this._packNodes(),this._notify())},i.prototype.getNodeDataByDOMEl=function(a){return b.find(this.nodes,function(b){return a.get(0)===b.el.get(0)})},i.prototype._fixCollisions=function(a){this._sortNodes(-1);var c=a,d=Boolean(b.find(this.nodes,function(a){return a.locked}));for(this.float||d||(c={x:0,y:a.y,width:this.width,height:a.height});;){var e=b.find(this.nodes,b.bind(g._collisionNodeCheck,{node:a,nn:c}));if(void 0===e)return;this.moveNode(e,e.x,a.y+a.height,e.width,e.height,!0)}},i.prototype.isAreaEmpty=function(a,c,d,e){var f={x:a||0,y:c||0,width:d||1,height:e||1},h=b.find(this.nodes,b.bind(function(a){return g.isIntercepted(a,f)},this));return null===h||void 0===h},i.prototype._sortNodes=function(a){this.nodes=g.sort(this.nodes,a,this.width)},i.prototype._packNodes=function(){this._sortNodes(),this.float?b.each(this.nodes,b.bind(function(a,c){if(!a._updating&&void 0!==a._origY&&a.y!=a._origY)for(var d=a.y;d>=a._origY;){var e=b.chain(this.nodes).find(b.bind(g._didCollide,{n:a,newY:d})).value();e||(a._dirty=!0,a.y=d),--d}},this)):b.each(this.nodes,b.bind(function(a,c){if(!a.locked)for(;a.y>0;){var d=a.y-1,e=0===c;if(c>0){var f=b.chain(this.nodes).take(c).find(b.bind(g._didCollide,{n:a,newY:d})).value();e=void 0===f}if(!e)break;a._dirty=a.y!=d,a.y=d}},this))},i.prototype._prepareNode=function(a,c){return a=b.defaults(a||{},{width:1,height:1,x:0,y:0}),a.x=parseInt(""+a.x),a.y=parseInt(""+a.y),a.width=parseInt(""+a.width),a.height=parseInt(""+a.height),a.autoPosition=a.autoPosition||!1,a.noResize=a.noResize||!1,a.noMove=a.noMove||!1,a.width>this.width?a.width=this.width:a.width<1&&(a.width=1),a.height<1&&(a.height=1),a.x<0&&(a.x=0),a.x+a.width>this.width&&(c?a.width=this.width-a.x:a.x=this.width-a.width),a.y<0&&(a.y=0),a},i.prototype._notify=function(){var a=Array.prototype.slice.call(arguments,0);if(a[0]=void 0===a[0]?[]:[a[0]],a[1]=void 0===a[1]||a[1],!this._updateCounter){var b=a[0].concat(this.getDirtyNodes());this.onchange(b,a[1])}},i.prototype.cleanNodes=function(){this._updateCounter||b.each(this.nodes,function(a){a._dirty=!1})},i.prototype.getDirtyNodes=function(){return b.filter(this.nodes,function(a){return a._dirty})},i.prototype.addNode=function(a,c){if(a=this._prepareNode(a),void 0!==a.maxWidth&&(a.width=Math.min(a.width,a.maxWidth)),void 0!==a.maxHeight&&(a.height=Math.min(a.height,a.maxHeight)),void 0!==a.minWidth&&(a.width=Math.max(a.width,a.minWidth)),void 0!==a.minHeight&&(a.height=Math.max(a.height,a.minHeight)),a._id=++h,a._dirty=!0,a.autoPosition){this._sortNodes();for(var d=0;;++d){var e=d%this.width,f=Math.floor(d/this.width);if(!(e+a.width>this.width)&&!b.find(this.nodes,b.bind(g._isAddNodeIntercepted,{x:e,y:f,node:a}))){a.x=e,a.y=f;break}}}return this.nodes.push(a),void 0!==c&&c&&this._addedNodes.push(b.clone(a)),this._fixCollisions(a),this._packNodes(),this._notify(),a},i.prototype.removeNode=function(a,c){c=void 0===c||c,this._removedNodes.push(b.clone(a)),a._id=null,this.nodes=b.without(this.nodes,a),this._packNodes(),this._notify(a,c)},i.prototype.canMoveNode=function(c,d,e,f,g){if(!this.isNodeChangedPosition(c,d,e,f,g))return!1;var h=Boolean(b.find(this.nodes,function(a){return a.locked}));if(!this.height&&!h)return!0;var j,k=new i(this.width,null,this.float,0,b.map(this.nodes,function(b){return b==c?j=a.extend({},b):a.extend({},b)}));if(void 0===j)return!0;k.moveNode(j,d,e,f,g);var l=!0;return h&&(l&=!Boolean(b.find(k.nodes,function(a){return a!=j&&Boolean(a.locked)&&Boolean(a._dirty)}))),this.height&&(l&=k.getGridHeight()<=this.height),l},i.prototype.canBePlacedWithRespectToHeight=function(c){if(!this.height)return!0;var d=new i(this.width,null,this.float,0,b.map(this.nodes,function(b){return a.extend({},b)}));return d.addNode(c),d.getGridHeight()<=this.height},i.prototype.isNodeChangedPosition=function(a,b,c,d,e){return"number"!=typeof b&&(b=a.x),"number"!=typeof c&&(c=a.y),"number"!=typeof d&&(d=a.width),"number"!=typeof e&&(e=a.height),void 0!==a.maxWidth&&(d=Math.min(d,a.maxWidth)),void 0!==a.maxHeight&&(e=Math.min(e,a.maxHeight)),void 0!==a.minWidth&&(d=Math.max(d,a.minWidth)),void 0!==a.minHeight&&(e=Math.max(e,a.minHeight)),a.x!=b||a.y!=c||a.width!=d||a.height!=e},i.prototype.moveNode=function(a,b,c,d,e,f){if(!this.isNodeChangedPosition(a,b,c,d,e))return a;if("number"!=typeof b&&(b=a.x),"number"!=typeof c&&(c=a.y),"number"!=typeof d&&(d=a.width),"number"!=typeof e&&(e=a.height),void 0!==a.maxWidth&&(d=Math.min(d,a.maxWidth)),void 0!==a.maxHeight&&(e=Math.min(e,a.maxHeight)),void 0!==a.minWidth&&(d=Math.max(d,a.minWidth)),void 0!==a.minHeight&&(e=Math.max(e,a.minHeight)),a.x==b&&a.y==c&&a.width==d&&a.height==e)return a;var g=a.width!=d;return a._dirty=!0,a.x=b,a.y=c,a.width=d,a.height=e,a.lastTriedX=b,a.lastTriedY=c,a.lastTriedWidth=d,a.lastTriedHeight=e,a=this._prepareNode(a,g),this._fixCollisions(a),f||(this._packNodes(),this._notify()),a},i.prototype.getGridHeight=function(){return b.reduce(this.nodes,function(a,b){return Math.max(a,b.y+b.height)},0)},i.prototype.beginUpdate=function(a){b.each(this.nodes,function(a){a._origY=a.y}),a._updating=!0},i.prototype.endUpdate=function(){b.each(this.nodes,function(a){a._origY=a.y});var a=b.find(this.nodes,function(a){return a._updating});a&&(a._updating=!1)};var j=function(d,e){var g,h,j=this;e=e||{},this.container=a(d),void 0!==e.handle_class&&(e.handleClass=e.handle_class,f("handle_class","handleClass")),void 0!==e.item_class&&(e.itemClass=e.item_class,f("item_class","itemClass")),void 0!==e.placeholder_class&&(e.placeholderClass=e.placeholder_class,f("placeholder_class","placeholderClass")),void 0!==e.placeholder_text&&(e.placeholderText=e.placeholder_text,f("placeholder_text","placeholderText")),void 0!==e.cell_height&&(e.cellHeight=e.cell_height,f("cell_height","cellHeight")),void 0!==e.vertical_margin&&(e.verticalMargin=e.vertical_margin,f("vertical_margin","verticalMargin")),void 0!==e.min_width&&(e.minWidth=e.min_width,f("min_width","minWidth")),void 0!==e.static_grid&&(e.staticGrid=e.static_grid,f("static_grid","staticGrid")),void 0!==e.is_nested&&(e.isNested=e.is_nested,f("is_nested","isNested")),void 0!==e.always_show_resize_handle&&(e.alwaysShowResizeHandle=e.always_show_resize_handle,f("always_show_resize_handle","alwaysShowResizeHandle")),e.itemClass=e.itemClass||"grid-stack-item";var k=this.container.closest("."+e.itemClass).length>0;if(this.opts=b.defaults(e||{},{width:parseInt(this.container.attr("data-gs-width"))||12,height:parseInt(this.container.attr("data-gs-height"))||0,itemClass:"grid-stack-item",placeholderClass:"grid-stack-placeholder",placeholderText:"",handle:".grid-stack-item-content",handleClass:null,cellHeight:60,verticalMargin:20,auto:!0,minWidth:768,float:!1,staticGrid:!1,_class:"grid-stack-instance-"+(1e4*Math.random()).toFixed(0),animate:Boolean(this.container.attr("data-gs-animate"))||!1,alwaysShowResizeHandle:e.alwaysShowResizeHandle||!1,resizable:b.defaults(e.resizable||{},{autoHide:!e.alwaysShowResizeHandle,handles:"se"}),draggable:b.defaults(e.draggable||{},{handle:(e.handleClass?"."+e.handleClass:e.handle?e.handle:"")||".grid-stack-item-content",scroll:!1,appendTo:"body"}),disableDrag:e.disableDrag||!1,disableResize:e.disableResize||!1,rtl:"auto",removable:!1,removeTimeout:2e3,verticalMarginUnit:"px",cellHeightUnit:"px",disableOneColumnMode:e.disableOneColumnMode||!1,oneColumnModeClass:e.oneColumnModeClass||"grid-stack-one-column-mode",ddPlugin:null}),!1===this.opts.ddPlugin?this.opts.ddPlugin=c:null===this.opts.ddPlugin&&(this.opts.ddPlugin=b.first(c.registeredPlugins)||c),this.dd=new this.opts.ddPlugin(this),"auto"===this.opts.rtl&&(this.opts.rtl="rtl"===this.container.css("direction")),this.opts.rtl&&this.container.addClass("grid-stack-rtl"),this.opts.isNested=k,h="auto"===this.opts.cellHeight,h?j.cellHeight(j.cellWidth(),!0):this.cellHeight(this.opts.cellHeight,!0),this.verticalMargin(this.opts.verticalMargin,!0),this.container.addClass(this.opts._class),this._setStaticClass(),k&&this.container.addClass("grid-stack-nested"),this._initStyles(),this.grid=new i(this.opts.width,function(a,c){c=void 0===c||c;var d=0;b.each(a,function(a){c&&null===a._id?a.el&&a.el.remove():(a.el.attr("data-gs-x",a.x).attr("data-gs-y",a.y).attr("data-gs-width",a.width).attr("data-gs-height",a.height),d=Math.max(d,a.y+a.height))}),j._updateStyles(d+10)},this.opts.float,this.opts.height),this.opts.auto){var l=[],m=this;this.container.children("."+this.opts.itemClass+":not(."+this.opts.placeholderClass+")").each(function(b,c){c=a(c),l.push({el:c,i:parseInt(c.attr("data-gs-x"))+parseInt(c.attr("data-gs-y"))*m.opts.width})}),b.chain(l).sortBy(function(a){return a.i}).each(function(a){j._prepareElement(a.el)}).value()}if(this.setAnimation(this.opts.animate),this.placeholder=a('<div class="'+this.opts.placeholderClass+" "+this.opts.itemClass+'"><div class="placeholder-content">'+this.opts.placeholderText+"</div></div>").hide(),this._updateContainerHeight(),this._updateHeightsOnResize=b.throttle(function(){j.cellHeight(j.cellWidth(),!1)},100),this.onResizeHandler=function(){if(h&&j._updateHeightsOnResize(),j._isOneColumnMode()&&!j.opts.disableOneColumnMode){if(g)return;j.container.addClass(j.opts.oneColumnModeClass),g=!0,j.grid._sortNodes(),b.each(j.grid.nodes,function(a){j.container.append(a.el),j.opts.staticGrid||(j.dd.draggable(a.el,"disable"),j.dd.resizable(a.el,"disable"),a.el.trigger("resize"))})}else{if(!g)return;if(j.container.removeClass(j.opts.oneColumnModeClass),g=!1,j.opts.staticGrid)return;b.each(j.grid.nodes,function(a){a.noMove||j.opts.disableDrag||j.dd.draggable(a.el,"enable"),a.noResize||j.opts.disableResize||j.dd.resizable(a.el,"enable"),a.el.trigger("resize")})}},a(window).resize(this.onResizeHandler),this.onResizeHandler(),!j.opts.staticGrid&&"string"==typeof j.opts.removable){var n=a(j.opts.removable);this.dd.isDroppable(n)||this.dd.droppable(n,{accept:"."+j.opts.itemClass}),this.dd.on(n,"dropover",function(b,c){var d=a(c.draggable);d.data("_gridstack_node")._grid===j&&j._setupRemovingTimeout(d)}).on(n,"dropout",function(b,c){var d=a(c.draggable);d.data("_gridstack_node")._grid===j&&j._clearRemovingTimeout(d)})}if(!j.opts.staticGrid&&j.opts.acceptWidgets){var o=null,p=function(a,b){var c=o,d=c.data("_gridstack_node"),e=j.getCellFromPixel(b.offset,!0),f=Math.max(0,e.x),g=Math.max(0,e.y);if(d._added){if(!j.grid.canMoveNode(d,f,g))return;j.grid.moveNode(d,f,g),j._updateContainerHeight()}else d._added=!0,d.el=c,d.x=f,d.y=g,j.grid.cleanNodes(),j.grid.beginUpdate(d),j.grid.addNode(d),j.container.append(j.placeholder),j.placeholder.attr("data-gs-x",d.x).attr("data-gs-y",d.y).attr("data-gs-width",d.width).attr("data-gs-height",d.height).show(),d.el=j.placeholder,d._beforeDragX=d.x,d._beforeDragY=d.y,j._updateContainerHeight()};this.dd.droppable(j.container,{accept:function(b){b=a(b);var c=b.data("_gridstack_node");return(!c||c._grid!==j)&&b.is(!0===j.opts.acceptWidgets?".grid-stack-item":j.opts.acceptWidgets)}}).on(j.container,"dropover",function(b,c){var d=(j.container.offset(),a(c.draggable)),e=j.cellWidth(),f=j.cellHeight(),g=d.data("_gridstack_node"),h=g?g.width:Math.ceil(d.outerWidth()/e),i=g?g.height:Math.ceil(d.outerHeight()/f);o=d;var k=j.grid._prepareNode({width:h,height:i,_added:!1,_temporary:!0});d.data("_gridstack_node",k),d.data("_gridstack_node_orig",g),d.on("drag",p)}).on(j.container,"dropout",function(b,c){var d=a(c.draggable);d.unbind("drag",p);var e=d.data("_gridstack_node");e.el=null,j.grid.removeNode(e),j.placeholder.detach(),j._updateContainerHeight(),d.data("_gridstack_node",d.data("_gridstack_node_orig"))}).on(j.container,"drop",function(b,c){j.placeholder.detach();var d=a(c.draggable).data("_gridstack_node");d._grid=j;var e=a(c.draggable).clone(!1);e.data("_gridstack_node",d);var f=a(c.draggable).data("_gridstack_node_orig");void 0!==f&&f._grid._triggerRemoveEvent(),a(c.draggable).remove(),d.el=e,j.placeholder.hide(),e.attr("data-gs-x",d.x).attr("data-gs-y",d.y).attr("data-gs-width",d.width).attr("data-gs-height",d.height).addClass(j.opts.itemClass).removeAttr("style").enableSelection().removeData("draggable").removeClass("ui-draggable ui-draggable-dragging ui-draggable-disabled").unbind("drag",p),j.container.append(e),j._prepareElementsByNode(e,d),j._updateContainerHeight(),j.grid._addedNodes.push(d),j._triggerAddEvent(),j._triggerChangeEvent(),j.grid.endUpdate()})}};return j.prototype._triggerChangeEvent=function(a){var b=this.grid.getDirtyNodes(),c=!1,d=[];b&&b.length&&(d.push(b),c=!0),(c||!0===a)&&this.container.trigger("change",d)},j.prototype._triggerAddEvent=function(){this.grid._addedNodes&&this.grid._addedNodes.length>0&&(this.container.trigger("added",[b.map(this.grid._addedNodes,b.clone)]),this.grid._addedNodes=[])},j.prototype._triggerRemoveEvent=function(){this.grid._removedNodes&&this.grid._removedNodes.length>0&&(this.container.trigger("removed",[b.map(this.grid._removedNodes,b.clone)]),this.grid._removedNodes=[])},j.prototype._initStyles=function(){this._stylesId&&g.removeStylesheet(this._stylesId),this._stylesId="gridstack-style-"+(1e5*Math.random()).toFixed(),this._styles=g.createStylesheet(this._stylesId),null!==this._styles&&(this._styles._max=0)},j.prototype._updateStyles=function(a){if(null!==this._styles&&void 0!==this._styles){var b,c="."+this.opts._class+" ."+this.opts.itemClass,d=this;if(void 0===a&&(a=this._styles._max),this._initStyles(),this._updateContainerHeight(),this.opts.cellHeight&&!(0!==this._styles._max&&a<=this._styles._max)&&(b=this.opts.verticalMargin&&this.opts.cellHeightUnit!==this.opts.verticalMarginUnit?function(a,b){return a&&b?"calc("+(d.opts.cellHeight*a+d.opts.cellHeightUnit)+" + "+(d.opts.verticalMargin*b+d.opts.verticalMarginUnit)+")":d.opts.cellHeight*a+d.opts.verticalMargin*b+d.opts.cellHeightUnit}:function(a,b){return d.opts.cellHeight*a+d.opts.verticalMargin*b+d.opts.cellHeightUnit},0===this._styles._max&&g.insertCSSRule(this._styles,c,"min-height: "+b(1,0)+";",0),a>this._styles._max)){for(var e=this._styles._max;e<a;++e)g.insertCSSRule(this._styles,c+'[data-gs-height="'+(e+1)+'"]',"height: "+b(e+1,e)+";",e),g.insertCSSRule(this._styles,c+'[data-gs-min-height="'+(e+1)+'"]',"min-height: "+b(e+1,e)+";",e),g.insertCSSRule(this._styles,c+'[data-gs-max-height="'+(e+1)+'"]',"max-height: "+b(e+1,e)+";",e),g.insertCSSRule(this._styles,c+'[data-gs-y="'+e+'"]',"top: "+b(e,e)+";",e);this._styles._max=a}}},j.prototype._updateContainerHeight=function(){if(!this.grid._updateCounter){var a=this.grid.getGridHeight();this.container.attr("data-gs-current-height",a),this.opts.cellHeight&&(this.opts.verticalMargin?this.opts.cellHeightUnit===this.opts.verticalMarginUnit?this.container.css("height",a*(this.opts.cellHeight+this.opts.verticalMargin)-this.opts.verticalMargin+this.opts.cellHeightUnit):this.container.css("height","calc("+(a*this.opts.cellHeight+this.opts.cellHeightUnit)+" + "+(a*(this.opts.verticalMargin-1)+this.opts.verticalMarginUnit)+")"):this.container.css("height",a*this.opts.cellHeight+this.opts.cellHeightUnit))}},j.prototype._isOneColumnMode=function(){return(window.innerWidth||document.documentElement.clientWidth||document.body.clientWidth)<=this.opts.minWidth},j.prototype._setupRemovingTimeout=function(b){var c=this,d=a(b).data("_gridstack_node");!d._removeTimeout&&c.opts.removable&&(d._removeTimeout=setTimeout(function(){b.addClass("grid-stack-item-removing"),d._isAboutToRemove=!0},c.opts.removeTimeout))},j.prototype._clearRemovingTimeout=function(b){var c=a(b).data("_gridstack_node");c._removeTimeout&&(clearTimeout(c._removeTimeout),c._removeTimeout=null,b.removeClass("grid-stack-item-removing"),c._isAboutToRemove=!1)},j.prototype._prepareElementsByNode=function(b,c){var d,e,f=this,g=function(a,g){var h,i,j=Math.round(g.position.left/d),k=Math.floor((g.position.top+e/2)/e);if("drag"!=a.type&&(h=Math.round(g.size.width/d),i=Math.round(g.size.height/e)),"drag"==a.type)j<0||j>=f.grid.width||k<0||!f.grid.float&&k>f.grid.getGridHeight()?c._temporaryRemoved||(!0===f.opts.removable&&f._setupRemovingTimeout(b),j=c._beforeDragX,k=c._beforeDragY,f.placeholder.detach(),f.placeholder.hide(),f.grid.removeNode(c),f._updateContainerHeight(),c._temporaryRemoved=!0):(f._clearRemovingTimeout(b),c._temporaryRemoved&&(f.grid.addNode(c),f.placeholder.attr("data-gs-x",j).attr("data-gs-y",k).attr("data-gs-width",h).attr("data-gs-height",i).show(),f.container.append(f.placeholder),c.el=f.placeholder,c._temporaryRemoved=!1));else if("resize"==a.type&&j<0)return;var l=void 0!==h?h:c.lastTriedWidth,m=void 0!==i?i:c.lastTriedHeight;!f.grid.canMoveNode(c,j,k,h,i)||c.lastTriedX===j&&c.lastTriedY===k&&c.lastTriedWidth===l&&c.lastTriedHeight===m||(c.lastTriedX=j,c.lastTriedY=k,c.lastTriedWidth=h,c.lastTriedHeight=i,f.grid.moveNode(c,j,k,h,i),f._updateContainerHeight())},h=function(g,h){f.container.append(f.placeholder);var i=a(this);f.grid.cleanNodes(),f.grid.beginUpdate(c),d=f.cellWidth();var j=Math.ceil(i.outerHeight()/i.attr("data-gs-height"));e=f.container.height()/parseInt(f.container.attr("data-gs-current-height")),f.placeholder.attr("data-gs-x",i.attr("data-gs-x")).attr("data-gs-y",i.attr("data-gs-y")).attr("data-gs-width",i.attr("data-gs-width")).attr("data-gs-height",i.attr("data-gs-height")).show(),c.el=f.placeholder,c._beforeDragX=c.x,c._beforeDragY=c.y,f.dd.resizable(b,"option","minWidth",d*(c.minWidth||1)),f.dd.resizable(b,"option","minHeight",j*(c.minHeight||1)),"resizestart"==g.type&&i.find(".grid-stack-item").trigger("resizestart")},i=function(d,e){var g=a(this);if(g.data("_gridstack_node")){var h=!1;if(f.placeholder.detach(),c.el=g,f.placeholder.hide(),c._isAboutToRemove){h=!0;b.data("_gridstack_node")._grid._triggerRemoveEvent(),b.removeData("_gridstack_node"),b.remove()}else f._clearRemovingTimeout(b),c._temporaryRemoved?(g.attr("data-gs-x",c._beforeDragX).attr("data-gs-y",c._beforeDragY).attr("data-gs-width",c.width).attr("data-gs-height",c.height).removeAttr("style"),c.x=c._beforeDragX,c.y=c._beforeDragY,f.grid.addNode(c)):g.attr("data-gs-x",c.x).attr("data-gs-y",c.y).attr("data-gs-width",c.width).attr("data-gs-height",c.height).removeAttr("style");f._updateContainerHeight(),f._triggerChangeEvent(h),f.grid.endUpdate();var i=g.find(".grid-stack");i.length&&"resizestop"==d.type&&(i.each(function(b,c){a(c).data("gridstack").onResizeHandler()}),g.find(".grid-stack-item").trigger("resizestop"),g.find(".grid-stack-item").trigger("gsresizestop")),"resizestop"==d.type&&f.container.trigger("gsresizestop",g)}};this.dd.draggable(b,{start:h,stop:i,drag:g}).resizable(b,{start:h,stop:i,resize:g}),(c.noMove||this._isOneColumnMode()&&!f.opts.disableOneColumnMode||this.opts.disableDrag)&&this.dd.draggable(b,"disable"),(c.noResize||this._isOneColumnMode()&&!f.opts.disableOneColumnMode||this.opts.disableResize)&&this.dd.resizable(b,"disable"),b.attr("data-gs-locked",c.locked?"yes":null)},j.prototype._prepareElement=function(b,c){c=void 0!==c&&c;var d=this;b=a(b),b.addClass(this.opts.itemClass);var e=d.grid.addNode({x:b.attr("data-gs-x"),y:b.attr("data-gs-y"),width:b.attr("data-gs-width"),height:b.attr("data-gs-height"),maxWidth:b.attr("data-gs-max-width"),minWidth:b.attr("data-gs-min-width"),maxHeight:b.attr("data-gs-max-height"),minHeight:b.attr("data-gs-min-height"),autoPosition:g.toBool(b.attr("data-gs-auto-position")),noResize:g.toBool(b.attr("data-gs-no-resize")),noMove:g.toBool(b.attr("data-gs-no-move")),locked:g.toBool(b.attr("data-gs-locked")),el:b,id:b.attr("data-gs-id"),_grid:d},c);b.data("_gridstack_node",e),this._prepareElementsByNode(b,e)},j.prototype.setAnimation=function(a){a?this.container.addClass("grid-stack-animate"):this.container.removeClass("grid-stack-animate")},j.prototype.addWidget=function(b,c,d,e,f,g,h,i,j,k,l){return b=a(b),void 0!==c&&b.attr("data-gs-x",c),void 0!==d&&b.attr("data-gs-y",d),void 0!==e&&b.attr("data-gs-width",e),void 0!==f&&b.attr("data-gs-height",f),void 0!==g&&b.attr("data-gs-auto-position",g?"yes":null),void 0!==h&&b.attr("data-gs-min-width",h),void 0!==i&&b.attr("data-gs-max-width",i),void 0!==j&&b.attr("data-gs-min-height",j),void 0!==k&&b.attr("data-gs-max-height",k),void 0!==l&&b.attr("data-gs-id",l),this.container.append(b),this._prepareElement(b,!0),this._triggerAddEvent(),this._updateContainerHeight(),this._triggerChangeEvent(!0),b},j.prototype.makeWidget=function(b){return b=a(b),this._prepareElement(b,!0),this._triggerAddEvent(),this._updateContainerHeight(),this._triggerChangeEvent(!0),b},j.prototype.willItFit=function(a,b,c,d,e){var f={x:a,y:b,width:c,height:d,autoPosition:e};return this.grid.canBePlacedWithRespectToHeight(f)},j.prototype.removeWidget=function(b,c){c=void 0===c||c,b=a(b);var d=b.data("_gridstack_node");d||(d=this.grid.getNodeDataByDOMEl(b)),this.grid.removeNode(d,c),b.removeData("_gridstack_node"),this._updateContainerHeight(),c&&b.remove(),this._triggerChangeEvent(!0),this._triggerRemoveEvent()},j.prototype.removeAll=function(a){b.each(this.grid.nodes,b.bind(function(b){this.removeWidget(b.el,a)},this)),this.grid.nodes=[],this._updateContainerHeight()},j.prototype.destroy=function(b){a(window).off("resize",this.onResizeHandler),this.disable(),void 0===b||b?this.container.remove():(this.removeAll(!1),this.container.removeData("gridstack")),g.removeStylesheet(this._stylesId),this.grid&&(this.grid=null)},j.prototype.resizable=function(b,c){var d=this;return b=a(b),b.each(function(b,e){e=a(e);var f=e.data("_gridstack_node");void 0!==f&&null!==f&&(f.noResize=!c,f.noResize||d._isOneColumnMode()&&!d.opts.disableOneColumnMode?d.dd.resizable(e,"disable"):d.dd.resizable(e,"enable"))}),this},j.prototype.movable=function(b,c){var d=this;return b=a(b),b.each(function(b,e){e=a(e);var f=e.data("_gridstack_node");void 0!==f&&null!==f&&(f.noMove=!c,f.noMove||d._isOneColumnMode()&&!d.opts.disableOneColumnMode?(d.dd.draggable(e,"disable"),e.removeClass("ui-draggable-handle")):(d.dd.draggable(e,"enable"),e.addClass("ui-draggable-handle")))}),this},j.prototype.enableMove=function(a,b){this.movable(this.container.children("."+this.opts.itemClass),a),b&&(this.opts.disableDrag=!a)},j.prototype.enableResize=function(a,b){this.resizable(this.container.children("."+this.opts.itemClass),a),b&&(this.opts.disableResize=!a)},j.prototype.disable=function(){this.movable(this.container.children("."+this.opts.itemClass),!1),this.resizable(this.container.children("."+this.opts.itemClass),!1),this.container.trigger("disable")},j.prototype.enable=function(){this.movable(this.container.children("."+this.opts.itemClass),!0),this.resizable(this.container.children("."+this.opts.itemClass),!0),this.container.trigger("enable")},j.prototype.locked=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");void 0!==e&&null!==e&&(e.locked=c||!1,d.attr("data-gs-locked",e.locked?"yes":null))}),this},j.prototype.maxHeight=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");void 0!==e&&null!==e&&(isNaN(c)||(e.maxHeight=c||!1,d.attr("data-gs-max-height",c)))}),this},j.prototype.minHeight=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");void 0!==e&&null!==e&&(isNaN(c)||(e.minHeight=c||!1,d.attr("data-gs-min-height",c)))}),this},j.prototype.maxWidth=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");void 0!==e&&null!==e&&(isNaN(c)||(e.maxWidth=c||!1,d.attr("data-gs-max-width",c)))}),this},j.prototype.minWidth=function(b,c){return b=a(b),b.each(function(b,d){d=a(d);var e=d.data("_gridstack_node");void 0!==e&&null!==e&&(isNaN(c)||(e.minWidth=c||!1,d.attr("data-gs-min-width",c)))}),this},j.prototype._updateElement=function(b,c){b=a(b).first();var d=b.data("_gridstack_node");if(void 0!==d&&null!==d){var e=this;e.grid.cleanNodes(),e.grid.beginUpdate(d),c.call(this,b,d),e._updateContainerHeight(),e._triggerChangeEvent(),e.grid.endUpdate()}},j.prototype.resize=function(a,b,c){this._updateElement(a,function(a,d){b=null!==b&&void 0!==b?b:d.width,c=null!==c&&void 0!==c?c:d.height,this.grid.moveNode(d,d.x,d.y,b,c)})},j.prototype.move=function(a,b,c){this._updateElement(a,function(a,d){b=null!==b&&void 0!==b?b:d.x,c=null!==c&&void 0!==c?c:d.y,this.grid.moveNode(d,b,c,d.width,d.height)})},j.prototype.update=function(a,b,c,d,e){this._updateElement(a,function(a,f){b=null!==b&&void 0!==b?b:f.x,c=null!==c&&void 0!==c?c:f.y,d=null!==d&&void 0!==d?d:f.width,e=null!==e&&void 0!==e?e:f.height,this.grid.moveNode(f,b,c,d,e)})},j.prototype.verticalMargin=function(a,b){if(void 0===a)return this.opts.verticalMargin;var c=g.parseHeight(a);this.opts.verticalMarginUnit===c.unit&&this.opts.height===c.height||(this.opts.verticalMarginUnit=c.unit,this.opts.verticalMargin=c.height,b||this._updateStyles())},j.prototype.cellHeight=function(a,b){if(void 0===a){if(this.opts.cellHeight)return this.opts.cellHeight;var c=this.container.children("."+this.opts.itemClass).first();return Math.ceil(c.outerHeight()/c.attr("data-gs-height"))}var d=g.parseHeight(a);this.opts.cellHeightUnit===d.heightUnit&&this.opts.height===d.height||(this.opts.cellHeightUnit=d.unit,this.opts.cellHeight=d.height,b||this._updateStyles())},j.prototype.cellWidth=function(){return Math.round(this.container.outerWidth()/this.opts.width)},j.prototype.getCellFromPixel=function(a,b){var c=void 0!==b&&b?this.container.offset():this.container.position(),d=a.left-c.left,e=a.top-c.top,f=Math.floor(this.container.width()/this.opts.width),g=Math.floor(this.container.height()/parseInt(this.container.attr("data-gs-current-height")));return{x:Math.floor(d/f),y:Math.floor(e/g)}},j.prototype.batchUpdate=function(){this.grid.batchUpdate()},j.prototype.commit=function(){this.grid.commit(),this._updateContainerHeight()},j.prototype.isAreaEmpty=function(a,b,c,d){return this.grid.isAreaEmpty(a,b,c,d)},j.prototype.setStatic=function(a){this.opts.staticGrid=!0===a,this.enableMove(!a),this.enableResize(!a),this._setStaticClass()},j.prototype._setStaticClass=function(){!0===this.opts.staticGrid?this.container.addClass("grid-stack-static"):this.container.removeClass("grid-stack-static")},j.prototype._updateNodeWidths=function(a,b){this.grid._sortNodes(),this.grid.batchUpdate();for(var c={},d=0;d<this.grid.nodes.length;d++)c=this.grid.nodes[d],this.update(c.el,Math.round(c.x*b/a),void 0,Math.round(c.width*b/a),void 0);this.grid.commit()},j.prototype.setGridWidth=function(a,b){this.container.removeClass("grid-stack-"+this.opts.width),!0!==b&&this._updateNodeWidths(this.opts.width,a),this.opts.width=a,this.grid.width=a,this.container.addClass("grid-stack-"+a)},i.prototype.batch_update=e(i.prototype.batchUpdate),i.prototype._fix_collisions=e(i.prototype._fixCollisions,"_fix_collisions","_fixCollisions"),i.prototype.is_area_empty=e(i.prototype.isAreaEmpty,"is_area_empty","isAreaEmpty"),i.prototype._sort_nodes=e(i.prototype._sortNodes,"_sort_nodes","_sortNodes"),i.prototype._pack_nodes=e(i.prototype._packNodes,"_pack_nodes","_packNodes"),i.prototype._prepare_node=e(i.prototype._prepareNode,"_prepare_node","_prepareNode"),i.prototype.clean_nodes=e(i.prototype.cleanNodes,"clean_nodes","cleanNodes"),i.prototype.get_dirty_nodes=e(i.prototype.getDirtyNodes,"get_dirty_nodes","getDirtyNodes"),i.prototype.add_node=e(i.prototype.addNode,"add_node","addNode, "),i.prototype.remove_node=e(i.prototype.removeNode,"remove_node","removeNode"),i.prototype.can_move_node=e(i.prototype.canMoveNode,"can_move_node","canMoveNode"),i.prototype.move_node=e(i.prototype.moveNode,"move_node","moveNode"),i.prototype.get_grid_height=e(i.prototype.getGridHeight,"get_grid_height","getGridHeight"),i.prototype.begin_update=e(i.prototype.beginUpdate,"begin_update","beginUpdate"),i.prototype.end_update=e(i.prototype.endUpdate,"end_update","endUpdate"),i.prototype.can_be_placed_with_respect_to_height=e(i.prototype.canBePlacedWithRespectToHeight,"can_be_placed_with_respect_to_height","canBePlacedWithRespectToHeight"),j.prototype._trigger_change_event=e(j.prototype._triggerChangeEvent,"_trigger_change_event","_triggerChangeEvent"),j.prototype._init_styles=e(j.prototype._initStyles,"_init_styles","_initStyles"),j.prototype._update_styles=e(j.prototype._updateStyles,"_update_styles","_updateStyles"),j.prototype._update_container_height=e(j.prototype._updateContainerHeight,"_update_container_height","_updateContainerHeight"),j.prototype._is_one_column_mode=e(j.prototype._isOneColumnMode,"_is_one_column_mode","_isOneColumnMode"),j.prototype._prepare_element=e(j.prototype._prepareElement,"_prepare_element","_prepareElement"),j.prototype.set_animation=e(j.prototype.setAnimation,"set_animation","setAnimation"),j.prototype.add_widget=e(j.prototype.addWidget,"add_widget","addWidget"),j.prototype.make_widget=e(j.prototype.makeWidget,"make_widget","makeWidget"),j.prototype.will_it_fit=e(j.prototype.willItFit,"will_it_fit","willItFit"),
+j.prototype.remove_widget=e(j.prototype.removeWidget,"remove_widget","removeWidget"),j.prototype.remove_all=e(j.prototype.removeAll,"remove_all","removeAll"),j.prototype.min_height=e(j.prototype.minHeight,"min_height","minHeight"),j.prototype.min_width=e(j.prototype.minWidth,"min_width","minWidth"),j.prototype._update_element=e(j.prototype._updateElement,"_update_element","_updateElement"),j.prototype.cell_height=e(j.prototype.cellHeight,"cell_height","cellHeight"),j.prototype.cell_width=e(j.prototype.cellWidth,"cell_width","cellWidth"),j.prototype.get_cell_from_pixel=e(j.prototype.getCellFromPixel,"get_cell_from_pixel","getCellFromPixel"),j.prototype.batch_update=e(j.prototype.batchUpdate,"batch_update","batchUpdate"),j.prototype.is_area_empty=e(j.prototype.isAreaEmpty,"is_area_empty","isAreaEmpty"),j.prototype.set_static=e(j.prototype.setStatic,"set_static","setStatic"),j.prototype._set_static_class=e(j.prototype._setStaticClass,"_set_static_class","_setStaticClass"),d.GridStackUI=j,d.GridStackUI.Utils=g,d.GridStackUI.Engine=i,d.GridStackUI.GridStackDragDropPlugin=c,a.fn.gridstack=function(b){return this.each(function(){var c=a(this);c.data("gridstack")||c.data("gridstack",new j(this,b))})},d.GridStackUI});
 //# sourceMappingURL=gridstack.min.map
\ No newline at end of file
diff --git a/dist/gridstack.min.map b/dist/gridstack.min.map
index 88850a96c..21057fa84 100644
--- a/dist/gridstack.min.map
+++ b/dist/gridstack.min.map
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\ No newline at end of file
diff --git a/doc/README.md b/doc/README.md
index 1f39cc77c..6e4d231ec 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -17,7 +17,7 @@ gridstack.js API
   - [enable(event)](#enableevent)
   - [removed(event, items)](#removedevent-items)
   - [resizestart(event, ui)](#resizestartevent-ui)
-  - [resizestop(event, ui)](#resizestopevent-ui)
+  - [gsresizestop(event, ui)](#gsresizestopevent-ui)
 - [API](#api)
   - [addWidget(el[, x, y, width, height, autoPosition, minWidth, maxWidth, minHeight, maxHeight, id])](#addwidgetel-x-y-width-height-autoposition-minwidth-maxwidth-minheight-maxheight-id)
   - [batchUpdate()](#batchupdate)
@@ -68,6 +68,7 @@ gridstack.js API
  - a string (ex: '10em', '100px', '10rem')
  - 0 or null, in which case the library will not generate styles for rows. Everything must be defined in CSS files.
  - `'auto'` - height will be calculated from cell width.
+- `ddPlugin` - class that implement drag'n'drop functionallity for gridstack. If `false` grid will be static. (default: `null` - first available plugin will be used)
 - `disableDrag` - disallows dragging of widgets (default: `false`).
 - `disableResize` - disallows resizing of widgets (default: `false`).
 - `draggable` - allows to override jQuery UI draggable options. (default: `{handle: '.grid-stack-item-content', scroll: false, appendTo: 'body'}`)
@@ -76,7 +77,9 @@ gridstack.js API
 - `height` - maximum rows amount. Default is `0` which means no maximum rows
 - `float` - enable floating widgets (default: `false`) See [example](http://troolee.github.io/gridstack.js/demo/float.html)
 - `itemClass` - widget class (default: `'grid-stack-item'`)
-- `minWidth` - minimal width. If window width is less, grid will be shown in one-column mode. You need also update your css file (`@media (max-width: 768px) {...}`) with corresponding value (default: `768`)
+- `minWidth` - minimal width. If window width is less, grid will be shown in one-column mode (default: `768`)
+- `disableOneColumnMode` - disables the onColumnMode when the window width is less than minWidth (default: 'false')
+- `oneColumnModeClass` - class set on grid when in one column mode (default: 'grid-stack-one-column-mode')
 - `placeholderClass` - class for placeholder (default: `'grid-stack-placeholder'`)
 - `placeholderText` - placeholder default content (default: `''`)
 - `resizable` - allows to override jQuery UI resizable options. (default: `{autoHide: true, handles: 'se'}`)
@@ -190,12 +193,11 @@ $('.grid-stack').on('resizestart', function(event, ui) {
 });
 ```
 
-### resizestop(event, ui)
+### gsresizestop(event, ui)
 
 ```javascript
-$('.grid-stack').on('resizestop', function(event, ui) {
-    var grid = this;
-    var element = event.target;
+$('.grid-stack').on('gsresizestop', function(event, elem) {
+    var newHeight = $(elem).attr('data-gs-height');
 });
 ```
 
diff --git a/karma.conf.js b/karma.conf.js
index a2472dad6..4230ca8a3 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -19,6 +19,7 @@ module.exports = function(config) {
           'bower_components/jquery-ui/jquery-ui.min.js',
           'bower_components/lodash/dist/lodash.min.js',
           'src/gridstack.js',
+          'src/gridstack.jQueryUI.js',
           'spec/*-spec.js'
         ],
 
@@ -31,7 +32,8 @@ module.exports = function(config) {
         // preprocess matching files before serving them to the browser
         // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
         preprocessors: {
-            'src/gridstack.js': ['coverage']
+            'src/gridstack.js': ['coverage'],
+            'src/gridstack.jQueryUI.js': ['coverage'],
         },
 
 
diff --git a/package.json b/package.json
index 864cd173a..dc905c6ac 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gridstack",
-  "version": "0.2.6",
+  "version": "0.3.0",
   "description": "gridstack.js is a jQuery plugin for widget layout",
   "main": "dist/gridstack.js",
   "repository": {
@@ -32,20 +32,20 @@
   "devDependencies": {
     "connect": "^3.4.1",
     "coveralls": "^2.11.8",
-    "doctoc": "^1.0.0",
-    "grunt": "^0.4.5",
+    "doctoc": "^1.3.0",
+    "grunt": "^1.0.1",
     "grunt-cli": "^1.2.0",
-    "grunt-contrib-connect": "^0.11.2",
-    "grunt-contrib-copy": "^0.8.2",
-    "grunt-contrib-cssmin": "^0.14.0",
+    "grunt-contrib-connect": "^1.0.2",
+    "grunt-contrib-copy": "^1.0.0",
+    "grunt-contrib-cssmin": "^2.1.0",
     "grunt-contrib-jshint": "^1.0.0",
-    "grunt-contrib-uglify": "^0.11.1",
-    "grunt-contrib-watch": "^0.6.1",
-    "grunt-doctoc": "^0.1.1",
-    "grunt-jscs": "^2.8.0",
-    "grunt-protractor-runner": "^3.2.0",
+    "grunt-contrib-uglify": "^2.3.0",
+    "grunt-contrib-watch": "^1.0.0",
+    "grunt-doctoc": "https://github.com/nickyout/grunt-doctoc.git#master",
+    "grunt-jscs": "^3.0.1",
+    "grunt-protractor-runner": "^5.0.0",
     "grunt-protractor-webdriver": "^0.2.5",
-    "grunt-sass": "^1.1.0",
+    "grunt-sass": "^2.0.0",
     "jasmine-core": "^2.4.1",
     "karma": "^1.1.2",
     "karma-coverage": "^1.1.1",
diff --git a/spec/e2e/html/gridstack-with-height.html b/spec/e2e/html/gridstack-with-height.html
index 4845ef6c1..2f543eba0 100644
--- a/spec/e2e/html/gridstack-with-height.html
+++ b/spec/e2e/html/gridstack-with-height.html
@@ -18,6 +18,7 @@
     <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
     <script src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/3.5.0/lodash.min.js"></script>
     <script src="../../../dist/gridstack.js"></script>
+    <script src="../../../dist/gridstack.jQueryUI.js"></script>
 
     <style type="text/css">
         .grid-stack {
diff --git a/spec/gridstack-engine-spec.js b/spec/gridstack-engine-spec.js
index db52d2f0a..ef18255a0 100644
--- a/spec/gridstack-engine-spec.js
+++ b/spec/gridstack-engine-spec.js
@@ -14,7 +14,7 @@ describe('gridstack engine', function() {
 
         beforeAll(function() {
             engine = new GridStackUI.Engine(12);
-        })
+        });
 
         it('should be setup properly', function() {
             expect(engine.width).toEqual(12);
@@ -29,7 +29,7 @@ describe('gridstack engine', function() {
 
         beforeAll(function() {
             engine = new GridStackUI.Engine(12);
-        })
+        });
 
         it('should prepare a node', function() {
             expect(engine._prepareNode({}, false)).toEqual(jasmine.objectContaining({x: 0, y: 0, width: 1, height: 1}));
@@ -57,7 +57,7 @@ describe('gridstack engine', function() {
             engine.nodes = [
                 engine._prepareNode({x: 3, y: 2, width: 3, height: 2})
             ];
-        })
+        });
 
         it('should be true', function() {
             expect(engine.isAreaEmpty(0, 0, 3, 2)).toEqual(true);
@@ -108,14 +108,14 @@ describe('gridstack engine', function() {
         });
     });
 
-    describe('test batchUpdate/commit', function () {
+    describe('test batchUpdate/commit', function() {
         var engine;
 
-        beforeAll(function () {
-            engine = new GridStackUI.Engine(12)
+        beforeAll(function() {
+            engine = new GridStackUI.Engine(12);
         });
 
-        it('should work on not float grids', function () {
+        it('should work on not float grids', function() {
             expect(engine.float).toEqual(false);
             engine.batchUpdate();
             expect(engine._updateCounter).toBeGreaterThan(0);
@@ -126,14 +126,14 @@ describe('gridstack engine', function() {
         });
     });
 
-    describe('test batchUpdate/commit', function () {
+    describe('test batchUpdate/commit', function() {
         var engine;
 
-        beforeAll(function () {
-            engine = new GridStackUI.Engine(12, null, true)
+        beforeAll(function() {
+            engine = new GridStackUI.Engine(12, null, true);
         });
 
-        it('should work on float grids', function () {
+        it('should work on float grids', function() {
             expect(engine.float).toEqual(true);
             engine.batchUpdate();
             expect(engine._updateCounter).toBeGreaterThan(0);
@@ -150,8 +150,8 @@ describe('gridstack engine', function() {
 
         beforeEach(function() {
             spy = {
-                callback: function () {}
-            }
+                callback: function() {}
+            };
             spyOn(spy, 'callback');
 
             engine = new GridStackUI.Engine(12, spy.callback, true);
@@ -204,19 +204,19 @@ describe('gridstack engine', function() {
         });
     });
 
-    describe('test _packNodes', function () {
-        describe('using not float mode', function () {
+    describe('test _packNodes', function() {
+        describe('using not float mode', function() {
             var engine;
 
-            var findNode = function (engine, id) {
-                return _.find(engine.nodes, function(i) { return i._id === id });
-            }
+            var findNode = function(engine, id) {
+                return _.find(engine.nodes, function(i) { return i._id === id; });
+            };
 
-            beforeEach(function () {
+            beforeEach(function() {
                 engine = new GridStackUI.Engine(12, null, false);
             });
 
-            it('shouldn\'t pack one node with y coord eq 0', function () {
+            it('shouldn\'t pack one node with y coord eq 0', function() {
                 engine.nodes = [
                     {x: 0, y: 0, width: 1, height: 1, _id: 1},
                 ];
@@ -227,7 +227,7 @@ describe('gridstack engine', function() {
                 expect(findNode(engine, 1)._dirty).toBeFalsy();
             });
 
-            it('should pack one node correctly', function () {
+            it('should pack one node correctly', function() {
                 engine.nodes = [
                     {x: 0, y: 1, width: 1, height: 1, _id: 1},
                 ];
@@ -237,7 +237,7 @@ describe('gridstack engine', function() {
                 expect(findNode(engine, 1)).toEqual(jasmine.objectContaining({x: 0, y: 0, width: 1, height: 1, _dirty: true}));
             });
 
-            it('should pack nodes correctly', function () {
+            it('should pack nodes correctly', function() {
                 engine.nodes = [
                     {x: 0, y: 1, width: 1, height: 1, _id: 1},
                     {x: 0, y: 5, width: 1, height: 1, _id: 2},
@@ -249,7 +249,7 @@ describe('gridstack engine', function() {
                 expect(findNode(engine, 2)).toEqual(jasmine.objectContaining({x: 0, y: 1, width: 1, height: 1, _dirty: true}));
             });
 
-            it('should pack nodes correctly', function () {
+            it('should pack nodes correctly', function() {
                 engine.nodes = [
                     {x: 0, y: 5, width: 1, height: 1, _id: 1},
                     {x: 0, y: 1, width: 1, height: 1, _id: 2},
@@ -261,7 +261,7 @@ describe('gridstack engine', function() {
                 expect(findNode(engine, 1)).toEqual(jasmine.objectContaining({x: 0, y: 1, width: 1, height: 1, _dirty: true}));
             });
 
-            it('should respect locked nodes', function () {
+            it('should respect locked nodes', function() {
                 engine.nodes = [
                     {x: 0, y: 1, width: 1, height: 1, _id: 1, locked: true},
                     {x: 0, y: 5, width: 1, height: 1, _id: 2},
@@ -275,4 +275,37 @@ describe('gridstack engine', function() {
             });
         });
     });
+
+    describe('test isNodeChangedPosition', function() {
+        var engine;
+
+        beforeAll(function() {
+            engine = new GridStackUI.Engine(12);
+        });
+
+        it('should return true for changed x', function() {
+            var widget = { x: 1, y: 2, width: 3, height: 4 };
+            expect(engine.isNodeChangedPosition(widget, 2, 2)).toEqual(true);
+        });
+
+        it('should return true for changed y', function() {
+            var widget = { x: 1, y: 2, width: 3, height: 4 };
+            expect(engine.isNodeChangedPosition(widget, 1, 1)).toEqual(true);
+        });
+
+        it('should return true for changed width', function() {
+            var widget = { x: 1, y: 2, width: 3, height: 4 };
+            expect(engine.isNodeChangedPosition(widget, 2, 2, 4, 4)).toEqual(true);
+        });
+
+        it('should return true for changed height', function() {
+            var widget = { x: 1, y: 2, width: 3, height: 4 };
+            expect(engine.isNodeChangedPosition(widget, 1, 2, 3, 3)).toEqual(true);
+        });
+
+        it('should return false for unchanged position', function() {
+            var widget = { x: 1, y: 2, width: 3, height: 4 };
+            expect(engine.isNodeChangedPosition(widget, 1, 2, 3, 4)).toEqual(false);
+        });
+    });
 });
diff --git a/src/gridstack.jQueryUI.js b/src/gridstack.jQueryUI.js
new file mode 100644
index 000000000..c9e0391c6
--- /dev/null
+++ b/src/gridstack.jQueryUI.js
@@ -0,0 +1,97 @@
+/**
+ * gridstack.js 0.3.0
+ * http://troolee.github.io/gridstack.js/
+ * (c) 2014-2016 Pavel Reznikov, Dylan Weiss
+ * gridstack.js may be freely distributed under the MIT license.
+ * @preserve
+*/
+(function(factory) {
+    if (typeof define === 'function' && define.amd) {
+        define(['jquery', 'lodash', 'gridstack', 'jquery-ui/data', 'jquery-ui/disable-selection', 'jquery-ui/focusable',
+            'jquery-ui/form', 'jquery-ui/ie', 'jquery-ui/keycode', 'jquery-ui/labels', 'jquery-ui/jquery-1-7',
+            'jquery-ui/plugin', 'jquery-ui/safe-active-element', 'jquery-ui/safe-blur', 'jquery-ui/scroll-parent',
+            'jquery-ui/tabbable', 'jquery-ui/unique-id', 'jquery-ui/version', 'jquery-ui/widget',
+            'jquery-ui/widgets/mouse', 'jquery-ui/widgets/draggable', 'jquery-ui/widgets/droppable',
+            'jquery-ui/widgets/resizable'], factory);
+    } else if (typeof exports !== 'undefined') {
+        try { jQuery = require('jquery'); } catch (e) {}
+        try { _ = require('lodash'); } catch (e) {}
+        try { GridStackUI = require('gridstack'); } catch (e) {}
+        factory(jQuery, _, GridStackUI);
+    } else {
+        factory(jQuery, _, GridStackUI);
+    }
+})(function($, _, GridStackUI) {
+
+    var scope = window;
+
+    /**
+    * @class JQueryUIGridStackDragDropPlugin
+    * jQuery UI implementation of drag'n'drop gridstack plugin.
+    */
+    function JQueryUIGridStackDragDropPlugin(grid) {
+        GridStackUI.GridStackDragDropPlugin.call(this, grid);
+    }
+
+    GridStackUI.GridStackDragDropPlugin.registerPlugin(JQueryUIGridStackDragDropPlugin);
+
+    JQueryUIGridStackDragDropPlugin.prototype = Object.create(GridStackUI.GridStackDragDropPlugin.prototype);
+    JQueryUIGridStackDragDropPlugin.prototype.constructor = JQueryUIGridStackDragDropPlugin;
+
+    JQueryUIGridStackDragDropPlugin.prototype.resizable = function(el, opts) {
+        el = $(el);
+        if (opts === 'disable' || opts === 'enable') {
+            el.resizable(opts);
+        } else if (opts === 'option') {
+            var key = arguments[2];
+            var value = arguments[3];
+            el.resizable(opts, key, value);
+        } else {
+            el.resizable(_.extend({}, this.grid.opts.resizable, {
+                start: opts.start || function() {},
+                stop: opts.stop || function() {},
+                resize: opts.resize || function() {}
+            }));
+        }
+        return this;
+    };
+
+    JQueryUIGridStackDragDropPlugin.prototype.draggable = function(el, opts) {
+        el = $(el);
+        if (opts === 'disable' || opts === 'enable') {
+            el.draggable(opts);
+        } else {
+            el.draggable(_.extend({}, this.grid.opts.draggable, {
+                containment: this.grid.opts.isNested ? this.grid.container.parent() : null,
+                start: opts.start || function() {},
+                stop: opts.stop || function() {},
+                drag: opts.drag || function() {}
+            }));
+        }
+        return this;
+    };
+
+    JQueryUIGridStackDragDropPlugin.prototype.droppable = function(el, opts) {
+        el = $(el);
+        if (opts === 'disable' || opts === 'enable') {
+            el.droppable(opts);
+        } else {
+            el.droppable({
+                accept: opts.accept
+            });
+        }
+        return this;
+    };
+
+    JQueryUIGridStackDragDropPlugin.prototype.isDroppable = function(el, opts) {
+        el = $(el);
+        return Boolean(el.data('droppable'));
+    };
+
+    JQueryUIGridStackDragDropPlugin.prototype.on = function(el, eventName, callback) {
+        $(el).on(eventName, callback);
+        return this;
+    };
+
+    return JQueryUIGridStackDragDropPlugin;
+});
diff --git a/src/gridstack.js b/src/gridstack.js
index 3b5a660b6..fbdb524f0 100644
--- a/src/gridstack.js
+++ b/src/gridstack.js
@@ -1,18 +1,13 @@
 /**
- * gridstack.js 0.2.6
+ * gridstack.js 0.3.0
  * http://troolee.github.io/gridstack.js/
- * (c) 2014-2016 Pavel Reznikov
+ * (c) 2014-2016 Pavel Reznikov, Dylan Weiss
  * gridstack.js may be freely distributed under the MIT license.
  * @preserve
 */
 (function(factory) {
     if (typeof define === 'function' && define.amd) {
-        define(['jquery', 'lodash', 'jquery-ui/data', 'jquery-ui/disable-selection', 'jquery-ui/focusable',
-            'jquery-ui/form', 'jquery-ui/ie', 'jquery-ui/keycode', 'jquery-ui/labels', 'jquery-ui/jquery-1-7',
-            'jquery-ui/plugin', 'jquery-ui/safe-active-element', 'jquery-ui/safe-blur', 'jquery-ui/scroll-parent',
-            'jquery-ui/tabbable', 'jquery-ui/unique-id', 'jquery-ui/version', 'jquery-ui/widget',
-            'jquery-ui/widgets/mouse', 'jquery-ui/widgets/draggable', 'jquery-ui/widgets/droppable',
-            'jquery-ui/widgets/resizable'], factory);
+        define(['jquery', 'lodash'], factory);
     } else if (typeof exports !== 'undefined') {
         try { jQuery = require('jquery'); } catch (e) {}
         try { _ = require('lodash'); } catch (e) {}
@@ -124,6 +119,41 @@
     Utils.insert_css_rule = obsolete(Utils.insertCSSRule, 'insert_css_rule', 'insertCSSRule');
     // jscs:enable requireCamelCaseOrUpperCaseIdentifiers
 
+    /**
+    * @class GridStackDragDropPlugin
+    * Base class for drag'n'drop plugin.
+    */
+    function GridStackDragDropPlugin(grid) {
+        this.grid = grid;
+    }
+
+    GridStackDragDropPlugin.registeredPlugins = [];
+
+    GridStackDragDropPlugin.registerPlugin = function(pluginClass) {
+        GridStackDragDropPlugin.registeredPlugins.push(pluginClass);
+    };
+
+    GridStackDragDropPlugin.prototype.resizable = function(el, opts) {
+        return this;
+    };
+
+    GridStackDragDropPlugin.prototype.draggable = function(el, opts) {
+        return this;
+    };
+
+    GridStackDragDropPlugin.prototype.droppable = function(el, opts) {
+        return this;
+    };
+
+    GridStackDragDropPlugin.prototype.isDroppable = function(el) {
+        return false;
+    };
+
+    GridStackDragDropPlugin.prototype.on = function(el, eventName, callback) {
+        return this;
+    };
+
+
     var idSeq = 0;
 
     var GridStackEngine = function(width, onchange, floatMode, height, items) {
@@ -351,6 +381,9 @@
     };
 
     GridStackEngine.prototype.canMoveNode = function(node, x, y, width, height) {
+        if (!this.isNodeChangedPosition(node, x, y, width, height)) {
+            return false;
+        }
         var hasLocked = Boolean(_.find(this.nodes, function(n) { return n.locked; }));
 
         if (!this.height && !hasLocked) {
@@ -406,7 +439,27 @@
         return clone.getGridHeight() <= this.height;
     };
 
+    GridStackEngine.prototype.isNodeChangedPosition = function(node, x, y, width, height) {
+        if (typeof x != 'number') { x = node.x; }
+        if (typeof y != 'number') { y = node.y; }
+        if (typeof width != 'number') { width = node.width; }
+        if (typeof height != 'number') { height = node.height; }
+
+        if (typeof node.maxWidth != 'undefined') { width = Math.min(width, node.maxWidth); }
+        if (typeof node.maxHeight != 'undefined') { height = Math.min(height, node.maxHeight); }
+        if (typeof node.minWidth != 'undefined') { width = Math.max(width, node.minWidth); }
+        if (typeof node.minHeight != 'undefined') { height = Math.max(height, node.minHeight); }
+
+        if (node.x == x && node.y == y && node.width == width && node.height == height) {
+            return false;
+        }
+        return true;
+    };
+
     GridStackEngine.prototype.moveNode = function(node, x, y, width, height, noPack) {
+        if (!this.isNodeChangedPosition(node, x, y, width, height)) {
+            return node;
+        }
         if (typeof x != 'number') { x = node.x; }
         if (typeof y != 'number') { y = node.y; }
         if (typeof width != 'number') { width = node.width; }
@@ -429,6 +482,11 @@
         node.width = width;
         node.height = height;
 
+        node.lastTriedX = x;
+        node.lastTriedY = y;
+        node.lastTriedWidth = width;
+        node.lastTriedHeight = height;
+
         node = this._prepareNode(node, resizing);
 
         this._fixCollisions(node);
@@ -547,9 +605,20 @@
             removable: false,
             removeTimeout: 2000,
             verticalMarginUnit: 'px',
-            cellHeightUnit: 'px'
+            cellHeightUnit: 'px',
+            disableOneColumnMode: opts.disableOneColumnMode || false,
+            oneColumnModeClass: opts.oneColumnModeClass || 'grid-stack-one-column-mode',
+            ddPlugin: null
         });
 
+        if (this.opts.ddPlugin === false) {
+            this.opts.ddPlugin = GridStackDragDropPlugin;
+        } else if (this.opts.ddPlugin === null) {
+            this.opts.ddPlugin = _.first(GridStackDragDropPlugin.registeredPlugins) || GridStackDragDropPlugin;
+        }
+
+        this.dd = new this.opts.ddPlugin(this);
+
         if (this.opts.rtl === 'auto') {
             this.opts.rtl = this.container.css('direction') === 'rtl';
         }
@@ -631,11 +700,11 @@
                 self._updateHeightsOnResize();
             }
 
-            if (self._isOneColumnMode()) {
+            if (self._isOneColumnMode() && !self.opts.disableOneColumnMode) {
                 if (oneColumnMode) {
                     return;
                 }
-
+                self.container.addClass(self.opts.oneColumnModeClass);
                 oneColumnMode = true;
 
                 self.grid._sortNodes();
@@ -645,12 +714,8 @@
                     if (self.opts.staticGrid) {
                         return;
                     }
-                    if (node.noMove || self.opts.disableDrag) {
-                        node.el.draggable('disable');
-                    }
-                    if (node.noResize || self.opts.disableResize) {
-                        node.el.resizable('disable');
-                    }
+                    self.dd.draggable(node.el, 'disable');
+                    self.dd.resizable(node.el, 'disable');
 
                     node.el.trigger('resize');
                 });
@@ -659,6 +724,7 @@
                     return;
                 }
 
+                self.container.removeClass(self.opts.oneColumnModeClass);
                 oneColumnMode = false;
 
                 if (self.opts.staticGrid) {
@@ -667,10 +733,10 @@
 
                 _.each(self.grid.nodes, function(node) {
                     if (!node.noMove && !self.opts.disableDrag) {
-                        node.el.draggable('enable');
+                        self.dd.draggable(node.el, 'enable');
                     }
                     if (!node.noResize && !self.opts.disableResize) {
-                        node.el.resizable('enable');
+                        self.dd.resizable(node.el, 'enable');
                     }
 
                     node.el.trigger('resize');
@@ -683,13 +749,13 @@
 
         if (!self.opts.staticGrid && typeof self.opts.removable === 'string') {
             var trashZone = $(self.opts.removable);
-            if (!trashZone.data('droppable')) {
-                trashZone.droppable({
+            if (!this.dd.isDroppable(trashZone)) {
+                this.dd.droppable(trashZone, {
                     accept: '.' + self.opts.itemClass
                 });
             }
-            trashZone
-                .on('dropover', function(event, ui) {
+            this.dd
+                .on(trashZone, 'dropover', function(event, ui) {
                     var el = $(ui.draggable);
                     var node = el.data('_gridstack_node');
                     if (node._grid !== self) {
@@ -697,7 +763,7 @@
                     }
                     self._setupRemovingTimeout(el);
                 })
-                .on('dropout', function(event, ui) {
+                .on(trashZone, 'dropout', function(event, ui) {
                     var el = $(ui.draggable);
                     var node = el.data('_gridstack_node');
                     if (node._grid !== self) {
@@ -747,16 +813,18 @@
                 }
             };
 
-            $(self.container).droppable({
-                accept: function(el) {
-                    el = $(el);
-                    var node = el.data('_gridstack_node');
-                    if (node && node._grid === self) {
-                        return false;
+            this.dd
+                .droppable(self.container, {
+                    accept: function(el) {
+                        el = $(el);
+                        var node = el.data('_gridstack_node');
+                        if (node && node._grid === self) {
+                            return false;
+                        }
+                        return el.is(self.opts.acceptWidgets === true ? '.grid-stack-item' : self.opts.acceptWidgets);
                     }
-                    return el.is(self.opts.acceptWidgets === true ? '.grid-stack-item' : self.opts.acceptWidgets);
-                },
-                over: function(event, ui) {
+                })
+                .on(self.container, 'dropover', function(event, ui) {
                     var offset = self.container.offset();
                     var el = $(ui.draggable);
                     var cellWidth = self.cellWidth();
@@ -773,8 +841,8 @@
                     el.data('_gridstack_node_orig', origNode);
 
                     el.on('drag', onDrag);
-                },
-                out: function(event, ui) {
+                })
+                .on(self.container, 'dropout', function(event, ui) {
                     var el = $(ui.draggable);
                     el.unbind('drag', onDrag);
                     var node = el.data('_gridstack_node');
@@ -783,14 +851,18 @@
                     self.placeholder.detach();
                     self._updateContainerHeight();
                     el.data('_gridstack_node', el.data('_gridstack_node_orig'));
-                },
-                drop: function(event, ui) {
+                })
+                .on(self.container, 'drop', function(event, ui) {
                     self.placeholder.detach();
 
                     var node = $(ui.draggable).data('_gridstack_node');
                     node._grid = self;
                     var el = $(ui.draggable).clone(false);
                     el.data('_gridstack_node', node);
+                    var originalNode = $(ui.draggable).data('_gridstack_node_orig');
+                    if (typeof originalNode !== 'undefined') {
+                        originalNode._grid._triggerRemoveEvent();
+                    }
                     $(ui.draggable).remove();
                     node.el = el;
                     self.placeholder.hide();
@@ -808,11 +880,12 @@
                     self.container.append(el);
                     self._prepareElementsByNode(el, node);
                     self._updateContainerHeight();
+                    self.grid._addedNodes.push(node);
+                    self._triggerAddEvent();
                     self._triggerChangeEvent();
 
                     self.grid.endUpdate();
-                }
-            });
+                });
         }
     };
 
@@ -867,9 +940,9 @@
 
         if (typeof maxHeight == 'undefined') {
             maxHeight = this._styles._max;
-            this._initStyles();
-            this._updateContainerHeight();
         }
+        this._initStyles();
+        this._updateContainerHeight();
         if (!this.opts.cellHeight) { // The rest will be handled by CSS
             return ;
         }
@@ -975,9 +1048,6 @@
     };
 
     GridStack.prototype._prepareElementsByNode = function(el, node) {
-        if (typeof $.ui === 'undefined') {
-            return;
-        }
         var self = this;
 
         var cellWidth;
@@ -995,20 +1065,22 @@
             }
 
             if (event.type == 'drag') {
-                if (x < 0 || x >= self.grid.width || y < 0) {
-                    if (self.opts.removable === true) {
-                        self._setupRemovingTimeout(el);
-                    }
+                if (x < 0 || x >= self.grid.width || y < 0 || (!self.grid.float && y > self.grid.getGridHeight())) {
+                    if (!node._temporaryRemoved) {
+                        if (self.opts.removable === true) {
+                            self._setupRemovingTimeout(el);
+                        }
 
-                    x = node._beforeDragX;
-                    y = node._beforeDragY;
+                        x = node._beforeDragX;
+                        y = node._beforeDragY;
 
-                    self.placeholder.detach();
-                    self.placeholder.hide();
-                    self.grid.removeNode(node);
-                    self._updateContainerHeight();
+                        self.placeholder.detach();
+                        self.placeholder.hide();
+                        self.grid.removeNode(node);
+                        self._updateContainerHeight();
 
-                    node._temporaryRemoved = true;
+                        node._temporaryRemoved = true;
+                    }
                 } else {
                     self._clearRemovingTimeout(el);
 
@@ -1030,10 +1102,18 @@
                     return;
                 }
             }
-
-            if (!self.grid.canMoveNode(node, x, y, width, height)) {
+            // width and height are undefined if not resizing
+            var lastTriedWidth = typeof width !== 'undefined' ? width : node.lastTriedWidth;
+            var lastTriedHeight = typeof height !== 'undefined' ? height : node.lastTriedHeight;
+            if (!self.grid.canMoveNode(node, x, y, width, height) ||
+                (node.lastTriedX === x && node.lastTriedY === y &&
+                node.lastTriedWidth === lastTriedWidth && node.lastTriedHeight === lastTriedHeight)) {
                 return;
             }
+            node.lastTriedX = x;
+            node.lastTriedY = y;
+            node.lastTriedWidth = width;
+            node.lastTriedHeight = height;
             self.grid.moveNode(node, x, y, width, height);
             self._updateContainerHeight();
         };
@@ -1056,8 +1136,8 @@
             node._beforeDragX = node.x;
             node._beforeDragY = node.y;
 
-            el.resizable('option', 'minWidth', cellWidth * (node.minWidth || 1));
-            el.resizable('option', 'minHeight', strictCellHeight * (node.minHeight || 1));
+            self.dd.resizable(el, 'option', 'minWidth', cellWidth * (node.minWidth || 1));
+            self.dd.resizable(el, 'option', 'minHeight', strictCellHeight * (node.minHeight || 1));
 
             if (event.type == 'resizestart') {
                 o.find('.grid-stack-item').trigger('resizestart');
@@ -1077,6 +1157,8 @@
 
             if (node._isAboutToRemove) {
                 forceNotify = true;
+                var gridToNotify = el.data('_gridstack_node')._grid;
+                gridToNotify._triggerRemoveEvent();
                 el.removeData('_gridstack_node');
                 el.remove();
             } else {
@@ -1111,28 +1193,31 @@
                     $(el).data('gridstack').onResizeHandler();
                 });
                 o.find('.grid-stack-item').trigger('resizestop');
+                o.find('.grid-stack-item').trigger('gsresizestop');
+            }
+            if (event.type == 'resizestop') {
+                self.container.trigger('gsresizestop', o);
             }
         };
 
-        el
-            .draggable(_.extend({}, this.opts.draggable, {
-                containment: this.opts.isNested ? this.container.parent() : null,
+        this.dd
+            .draggable(el, {
                 start: onStartMoving,
                 stop: onEndMoving,
                 drag: dragOrResize
-            }))
-            .resizable(_.extend({}, this.opts.resizable, {
+            })
+            .resizable(el, {
                 start: onStartMoving,
                 stop: onEndMoving,
                 resize: dragOrResize
-            }));
+            });
 
-        if (node.noMove || this._isOneColumnMode() || this.opts.disableDrag) {
-            el.draggable('disable');
+        if (node.noMove || (this._isOneColumnMode() && !self.opts.disableOneColumnMode) || this.opts.disableDrag) {
+            this.dd.draggable(el, 'disable');
         }
 
-        if (node.noResize || this._isOneColumnMode() || this.opts.disableResize) {
-            el.resizable('disable');
+        if (node.noResize || (this._isOneColumnMode() && !self.opts.disableOneColumnMode) || this.opts.disableResize) {
+            this.dd.resizable(el, 'disable');
         }
 
         el.attr('data-gs-locked', node.locked ? 'yes' : null);
@@ -1260,15 +1345,15 @@
         el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
-            if (typeof node == 'undefined' || node === null || typeof $.ui === 'undefined') {
+            if (typeof node == 'undefined' || node === null) {
                 return;
             }
 
             node.noResize = !(val || false);
-            if (node.noResize || self._isOneColumnMode()) {
-                el.resizable('disable');
+            if (node.noResize || (self._isOneColumnMode() && !self.opts.disableOneColumnMode)) {
+                self.dd.resizable(el, 'disable');
             } else {
-                el.resizable('enable');
+                self.dd.resizable(el, 'enable');
             }
         });
         return this;
@@ -1280,16 +1365,16 @@
         el.each(function(index, el) {
             el = $(el);
             var node = el.data('_gridstack_node');
-            if (typeof node == 'undefined' || node === null || typeof $.ui === 'undefined') {
+            if (typeof node == 'undefined' || node === null) {
                 return;
             }
 
             node.noMove = !(val || false);
-            if (node.noMove || self._isOneColumnMode()) {
-                el.draggable('disable');
+            if (node.noMove || (self._isOneColumnMode() && !self.opts.disableOneColumnMode)) {
+                self.dd.draggable(el, 'disable');
                 el.removeClass('ui-draggable-handle');
             } else {
-                el.draggable('enable');
+                self.dd.draggable(el, 'enable');
                 el.addClass('ui-draggable-handle');
             }
         });
@@ -1645,6 +1730,7 @@
 
     scope.GridStackUI.Utils = Utils;
     scope.GridStackUI.Engine = GridStackEngine;
+    scope.GridStackUI.GridStackDragDropPlugin = GridStackDragDropPlugin;
 
     $.fn.gridstack = function(opts) {
         return this.each(function() {
diff --git a/src/gridstack.scss b/src/gridstack.scss
index 5a612d63b..dbd6bfaa9 100644
--- a/src/gridstack.scss
+++ b/src/gridstack.scss
@@ -123,18 +123,18 @@ $animation_speed: .3s !default;
     &.grid-stack-animate .grid-stack-item.grid-stack-placeholder{
         @include vendor(transition, left .0s, top .0s, height .0s, width .0s);
     }
-}
-
-@media (max-width: 768px) {
-    .grid-stack-item {
-        position: relative !important;
-        width: auto !important;
-        left: 0 !important;
-        top: auto !important;
-        margin-bottom: $vertical_padding;
-
-        .ui-resizable-handle { display: none; }
-    }
-
-    .grid-stack { height: auto !important; }
+    
+	&.grid-stack-one-column-mode {
+		height: auto !important;
+		&> .grid-stack-item {
+	        position: relative !important;
+	        width: auto !important;
+	        left: 0 !important;
+	        top: auto !important;
+	        margin-bottom: $vertical_padding;
+	        max-width: none !important;
+
+	        &> .ui-resizable-handle { display: none; }
+		}
+	}
 }