Added `dropdownParent`

`dropdownParent` controls the location of the dropdown when it is
automatically added to the DOM. By default, this is the body
element but it can be modified based on where the user needs it.

dist/js/select2.amd.full.js

@@ -742,7 +742,7 @@ define('select2/selection/base',[
   };
 
   BaseSelection.prototype.destroy = function () {
-    this._detachCloseHandler();
+    this._detachCloseHandler(this.container);
   };
 
   BaseSelection.prototype.update = function (data) {
@@ -2851,6 +2851,8 @@ define('select2/dropdown/attachBody',[
 
 ], function () {
   function AttachBody (decorated, $element, options) {
+    this.$dropdownParent = options.get('dropdownParent') || document.body;
+
     decorated.call(this, $element, options);
   }
 
@@ -2981,7 +2983,7 @@ define('select2/dropdown/attachBody',[
   };
 
   AttachBody.prototype._showDropdown = function (decorated) {
-    this.$dropdownContainer.appendTo(document.body);
+    this.$dropdownContainer.appendTo(this.$dropdownParent);
 
     this._positionDropdown();
   };
@@ -3323,7 +3325,7 @@ define('select2/core',[
 ], function ($, Options, Utils, KEYS) {
   var Select2 = function ($element, options) {
     if ($element.data('select2') != null) {
-      $element.select2('destroy');
+      $element.data('select2').destroy();
     }
 
     this.$element = $element;

dist/js/select2.amd.js

@@ -742,7 +742,7 @@ define('select2/selection/base',[
   };
 
   BaseSelection.prototype.destroy = function () {
-    this._detachCloseHandler();
+    this._detachCloseHandler(this.container);
   };
 
   BaseSelection.prototype.update = function (data) {
@@ -2851,6 +2851,8 @@ define('select2/dropdown/attachBody',[
 
 ], function () {
   function AttachBody (decorated, $element, options) {
+    this.$dropdownParent = options.get('dropdownParent') || document.body;
+
     decorated.call(this, $element, options);
   }
 
@@ -2981,7 +2983,7 @@ define('select2/dropdown/attachBody',[
   };
 
   AttachBody.prototype._showDropdown = function (decorated) {
-    this.$dropdownContainer.appendTo(document.body);
+    this.$dropdownContainer.appendTo(this.$dropdownParent);
 
     this._positionDropdown();
   };
@@ -3323,7 +3325,7 @@ define('select2/core',[
 ], function ($, Options, Utils, KEYS) {
   var Select2 = function ($element, options) {
     if ($element.data('select2') != null) {
-      $element.select2('destroy');
+      $element.data('select2').destroy();
     }
 
     this.$element = $element;

dist/js/select2.full.js

@@ -10277,7 +10277,7 @@ define('select2/selection/base',[
   };
 
   BaseSelection.prototype.destroy = function () {
-    this._detachCloseHandler();
+    this._detachCloseHandler(this.container);
   };
 
   BaseSelection.prototype.update = function (data) {
@@ -12386,6 +12386,8 @@ define('select2/dropdown/attachBody',[
 
 ], function () {
   function AttachBody (decorated, $element, options) {
+    this.$dropdownParent = options.get('dropdownParent') || document.body;
+
     decorated.call(this, $element, options);
   }
 
@@ -12516,7 +12518,7 @@ define('select2/dropdown/attachBody',[
   };
 
   AttachBody.prototype._showDropdown = function (decorated) {
-    this.$dropdownContainer.appendTo(document.body);
+    this.$dropdownContainer.appendTo(this.$dropdownParent);
 
     this._positionDropdown();
   };
@@ -12858,7 +12860,7 @@ define('select2/core',[
 ], function ($, Options, Utils, KEYS) {
   var Select2 = function ($element, options) {
     if ($element.data('select2') != null) {
-      $element.select2('destroy');
+      $element.data('select2').destroy();
     }
 
     this.$element = $element;

dist/js/select2.js

@@ -1170,7 +1170,7 @@ define('select2/selection/base',[
   };
 
   BaseSelection.prototype.destroy = function () {
-    this._detachCloseHandler();
+    this._detachCloseHandler(this.container);
   };
 
   BaseSelection.prototype.update = function (data) {
@@ -3279,6 +3279,8 @@ define('select2/dropdown/attachBody',[
 
 ], function () {
   function AttachBody (decorated, $element, options) {
+    this.$dropdownParent = options.get('dropdownParent') || document.body;
+
     decorated.call(this, $element, options);
   }
 
@@ -3409,7 +3411,7 @@ define('select2/dropdown/attachBody',[
   };
 
   AttachBody.prototype._showDropdown = function (decorated) {
-    this.$dropdownContainer.appendTo(document.body);
+    this.$dropdownContainer.appendTo(this.$dropdownParent);
 
     this._positionDropdown();
   };
@@ -3751,7 +3753,7 @@ define('select2/core',[
 ], function ($, Options, Utils, KEYS) {
   var Select2 = function ($element, options) {
     if ($element.data('select2') != null) {
-      $element.select2('destroy');
+      $element.data('select2').destroy();
     }
 
     this.$element = $element;

docs/options.html

@@ -467,7 +467,7 @@ ajax: {
           <dd><code>dropdownParent</code></dd>
 
           <dt>Value</dt>
-          <dd>jQuery element</dd>
+          <dd>jQuery element or DOM node</dd>
 
           <hr />
 

src/js/select2/core.js

@@ -6,7 +6,7 @@ define([
 ], function ($, Options, Utils, KEYS) {
   var Select2 = function ($element, options) {
     if ($element.data('select2') != null) {
-      $element.select2('destroy');
+      $element.data('select2').destroy();
     }
 
     this.$element = $element;

src/js/select2/dropdown/attachBody.js

@@ -2,6 +2,8 @@ define([
 
 ], function () {
   function AttachBody (decorated, $element, options) {
+    this.$dropdownParent = options.get('dropdownParent') || document.body;
+
     decorated.call(this, $element, options);
   }
 
@@ -132,7 +134,7 @@ define([
   };
 
   AttachBody.prototype._showDropdown = function (decorated) {
-    this.$dropdownContainer.appendTo(document.body);
+    this.$dropdownContainer.appendTo(this.$dropdownParent);
 
     this._positionDropdown();
   };

src/js/select2/selection/base.js

@@ -98,7 +98,7 @@ define([
   };
 
   BaseSelection.prototype.destroy = function () {
-    this._detachCloseHandler();
+    this._detachCloseHandler(this.container);
   };
 
   BaseSelection.prototype.update = function (data) {