adding helper to display busy cursor on requests

src/mesh/services/Request.as

@@ -4,6 +4,8 @@ package mesh.services
 
 	import mesh.core.proxy.DataProxy;
 
+	import mx.managers.CursorManager;
+
 	public dynamic class Request extends DataProxy
 	{
 		private var _block:Function;
@@ -42,19 +44,31 @@ package mesh.services
 		{
 			if (!_isExecuting) {
 				_isExecuting = true;
+
+				showBusyCursor();
 				if (handler != null) {
 					addHandler(handler);
 				}
+
 				executeBlock(_block);
 			}
 			return this;
 		}
 
+		private var _useBusyCursor:Boolean;
+		public function useBusyCursor():Request
+		{
+			_useBusyCursor = true;
+			return this;
+		}
+
 		protected function fault(fault:Object):void
 		{
+			hideBusyCursor();
 			for each (var handler:Object in _handlers) {
 				handler.fault(fault);
 			}
+			_isExecuting = false;
 		}
 
 		protected function result(data:Object):void
@@ -64,6 +78,7 @@ package mesh.services
 
 		protected function success():void
 		{
+			hideBusyCursor();
 			for each (var handler:Object in _handlers) {
 				handler.success();
 			}
@@ -89,6 +104,20 @@ package mesh.services
 		{
 			block.apply(null, blockArgs());
 		}
+
+		private function showBusyCursor():void
+		{
+			if (_useBusyCursor) {
+				CursorManager.setBusyCursor();
+			}
+		}
+
+		private function hideBusyCursor():void
+		{
+			if (_useBusyCursor) {
+				CursorManager.removeBusyCursor();
+			}
+		}
 	}
 }