1 files changed, 58 insertions, 0 deletions
diff --git a/catalog-ui/app/scripts/utils/functions.ts b/catalog-ui/app/scripts/utils/functions.ts
new file mode 100644
index 0000000000..32bc9243cf
--- /dev/null
+++ b/catalog-ui/app/scripts/utils/functions.ts
@@ -0,0 +1,58 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+/// <reference path="../references"/>
+module Sdc.Utils.Functions {
+
+    export class QueueUtils {
+
+        private executionQueue : any;
+
+        constructor(private $q:ng.IQService){
+            this.executionQueue = this.getDummyPromise();
+        }
+
+
+        private getDummyPromise = (): ng.IPromise<boolean> => {
+            let deferred : ng.IDeferred<boolean>= this.$q.defer();
+            deferred.resolve(true);
+            return deferred.promise;
+        };
+
+
+        private addMethodToQueue = (runMe:Function) : void => {
+            this.executionQueue = this.executionQueue.then(runMe, runMe);
+        };
+
+        addNonBlockingUIAction = (update:Function , releaseUIcallBack:Function) : void => {
+            releaseUIcallBack();
+            this.addMethodToQueue(update);
+        };
+
+        // The Method call is responsible for releasing the UI
+        addBlockingUIAction = ( blockingServerRequest : Function ):void => {
+            this.addMethodToQueue(blockingServerRequest);
+        };
+
+        addBlockingUIActionWithReleaseCallback = ( blockingServerRequest : Function, releaseUIcallBack:Function):void=>{
+            this.addMethodToQueue(blockingServerRequest);
+            this.addMethodToQueue(releaseUIcallBack);
+        };
+    }
+}