添加Metronic（作为LFS）

frontend/static/assets/admin/pages/scripts/ui-nestable.js

@@ -0,0 +1,51 @@
+var UINestable = function () {
+
+    var updateOutput = function (e) {
+        var list = e.length ? e : $(e.target),
+            output = list.data('output');
+        if (window.JSON) {
+            output.val(window.JSON.stringify(list.nestable('serialize'))); //, null, 2));
+        } else {
+            output.val('JSON browser support required for this demo.');
+        }
+    };
+
+
+    return {
+        //main function to initiate the module
+        init: function () {
+
+            // activate Nestable for list 1
+            $('#nestable_list_1').nestable({
+                group: 1
+            })
+                .on('change', updateOutput);
+
+            // activate Nestable for list 2
+            $('#nestable_list_2').nestable({
+                group: 1
+            })
+                .on('change', updateOutput);
+
+            // output initial serialised data
+            updateOutput($('#nestable_list_1').data('output', $('#nestable_list_1_output')));
+            updateOutput($('#nestable_list_2').data('output', $('#nestable_list_2_output')));
+
+            $('#nestable_list_menu').on('click', function (e) {
+                var target = $(e.target),
+                    action = target.data('action');
+                if (action === 'expand-all') {
+                    $('.dd').nestable('expandAll');
+                }
+                if (action === 'collapse-all') {
+                    $('.dd').nestable('collapseAll');
+                }
+            });
+
+            $('#nestable_list_3').nestable();
+
+        }
+
+    };
+
+}();