Merge pull request #319 from thgreasi/master

fix(sortable): restore support for jquery 1.10

Author: thgreasi

src/sortable.js

@@ -27,6 +27,16 @@ angular.module('ui.sortable', [])
             return first;
           }
 
+          function getSortableWidgetInstance(element) {
+            // this is a fix to support jquery-ui prior to v1.11.x
+            // otherwise we should be using `element.sortable('instance')`
+            var data = element.data('ui-sortable');
+            if (data && typeof data === 'object' && data.widgetFullName === 'ui-sortable') {
+              return data;
+            }
+            return null;
+          }
+
           function hasSortingHelper (element, ui) {
             var helperOption = element.sortable('option','helper');
             return helperOption === 'clone' || (typeof helperOption === 'function' && ui.item.sortable.isCustomHelperUsed());
@@ -76,7 +86,7 @@ angular.module('ui.sortable', [])
               $timeout(function() {
                 // ensure that the jquery-ui-sortable widget instance
                 // is still bound to the directive's element
-                if (!!element.sortable('instance')) {
+                if (!!getSortableWidgetInstance(element)) {
                   element.sortable('refresh');
                 }
               }, 0, false);
@@ -87,7 +97,8 @@ angular.module('ui.sortable', [])
                 // since the drag has started, the element will be
                 // absolutely positioned, so we check its siblings
                 var siblings = ui.item.siblings();
-                angular.element(e.target).sortable('instance').floating = isFloating(siblings);
+                var sortableWidgetInstance = getSortableWidgetInstance(angular.element(e.target));
+                sortableWidgetInstance.floating = isFloating(siblings);
               }
 
               // Save the starting position of dragged item
@@ -263,13 +274,14 @@ angular.module('ui.sortable', [])
             scope.$watch('uiSortable', function(newVal /*, oldVal*/) {
               // ensure that the jquery-ui-sortable widget instance
               // is still bound to the directive's element
-              if (!!element.sortable('instance')) {
+              var sortableWidgetInstance = getSortableWidgetInstance(element);
+              if (!!sortableWidgetInstance) {
                 angular.forEach(newVal, function(value, key) {
                   // if it's a custom option of the directive,
                   // handle it approprietly
                   if (key in directiveOpts) {
                     if (key === 'ui-floating' && (value === false || value === true)) {
-                      element.sortable('instance').floating = value;
+                      sortableWidgetInstance.floating = value;
                     }
 
                     opts[key] = value;