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diff --git a/catalog-ui/app/scripts/directives/loader/loader-directive.ts b/catalog-ui/app/scripts/directives/loader/loader-directive.ts
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+/*-
+ * ============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.Directives {
+ 'use strict';
+ export interface ILoaderScope extends ng.IScope {
+ display: boolean; // Toggle show || hide scroll
+ size: string; // small || medium || large
+ elementSelector: string; // Jquery selector to hide and scroll inside
+ relative: boolean; // Will use the parent of <loader> element and hide it and scroll inside
+ loaderType: string;
+ }
+
+ export class LoaderDirective implements ng.IDirective {
+
+ constructor(private $templateCache: ng.ITemplateCacheService, private EventListenerService: Services.EventListenerService) {
+ }
+
+ /*
+ * relative is used when inserting the HTML loader inside some div <loader data-display="isLoading" relative="true"></loader>
+ * elementSelector when we want to pass the Jquery selector of the loader.
+ */
+ scope = {
+ display: '=',
+ size: '@?',
+ elementSelector: '@?',
+ relative: '=?',
+ loaderType: '@?'
+ };
+
+ public replace = false;
+ public restrict = 'E';
+ template = (): string => {
+ return this.$templateCache.get('/app/scripts/directives/loader/loader-directive.html');
+ };
+
+ link = (scope: ILoaderScope, element: any) => {
+
+ let interval;
+
+ this.EventListenerService.registerObserverCallback(Utils.Constants.EVENTS.SHOW_LOADER_EVENT, (loaderType)=> {
+ if (scope.loaderType !== loaderType) {
+ return;
+ }
+ scope.display = true;
+ });
+ this.EventListenerService.registerObserverCallback(Utils.Constants.EVENTS.HIDE_LOADER_EVENT, (loaderType)=> {
+ if (scope.loaderType !== loaderType) {
+ return;
+ }
+ scope.display = false;
+ });
+
+ let calculateSizesForFixPosition = (positionStyle: string): void => {
+ // This is problematic, I do not want to change the parent position.
+ // set the loader on all the screen
+ let parentPosition = element.parent().position();
+ let parentWidth = element.parent().width();
+ let parentHeight = element.parent().height();
+ element.css('position', positionStyle);
+ element.css('top', parentPosition.top);
+ element.css('left', parentPosition.left);
+ element.css('width', parentWidth);
+ element.css('height', parentHeight);
+ };
+
+ let setStyle = (positionStyle: string): void => {
+
+ switch (positionStyle) {
+ case 'absolute':
+ case 'fixed':
+ // The parent size is not set yet, still loading, so need to use interval to update the size.
+ interval = window.setInterval(()=> {
+ calculateSizesForFixPosition(positionStyle);
+ }, 2000);
+ break;
+ default:
+ // Can change the parent position to relative without causing style issues.
+ element.parent().css('position', 'relative');
+ break;
+ }
+ };
+
+ // This should be executed after the dom loaded
+ window.setTimeout((): void => {
+
+ element.css('display', 'none');
+
+ if (scope.elementSelector) {
+ let elemParent = angular.element(scope.elementSelector);
+ let positionStyle: string = elemParent.css('position');
+ setStyle(positionStyle);
+ }
+
+ if (scope.relative === true) {
+ let positionStyle: string = element.parent().css('position');
+ setStyle(positionStyle);
+ }
+
+ if (!scope.size) {
+ scope.size = 'large';
+ }
+
+ }, 0);
+
+ if (scope.elementSelector) {
+
+ }
+
+ function cleanUp() {
+ clearInterval(interval);
+ }
+
+ scope.$watch("display", (newVal, oldVal) => {
+ element.css('display', 'none');
+ if (newVal === true) {
+ window.setTimeout((): void => {
+ element.css('display', 'block');
+ }, 500);
+ } else {
+ window.setTimeout((): void => {
+ element.css('display', 'none');
+ }, 0);
+ }
+ });
+
+ scope.$on('$destroy', cleanUp);
+
+ };
+
+ public static factory = ($templateCache: ng.ITemplateCacheService, EventListenerService: Services.EventListenerService)=> {
+ return new LoaderDirective($templateCache, EventListenerService);
+ };
+
+ }
+
+ LoaderDirective.factory.$inject = ['$templateCache', 'EventListenerService'];
+}