'use strict';

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: BI
 * (C) Copyright IBM Corp. 2019
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */

/**
 * This helper is needed to work past inconsistencies in dialog blocker class names between our legacy code
 * and the ba-ui-toolkit dialog blocker which is triggered from some dialogs and interactions
 */
define(['jquery'], function ($) {

	return {
		dialogBlockerClasses: ['dialogBlocker', 'ba-common-dialog__blockerCell'],
		/**
   * Check if any dialog blockers are open
   * @returns {Boolean} checks if the document has any active elements with any dialog blocker class
   */
		isShowingDialogBlocker: function isShowingDialogBlocker() {
			return this.dialogBlockerClasses.some(function (className) {
				return document.getElementsByClassName(className).length > 0;
			});
		},
		/**
   * @returns {DOMElement} blocker
   */
		createBlocker: function createBlocker() {
			var $blocker = document.createElement('div');
			$blocker.classList.add('dialogBlocker');
			$blocker.setAttribute('tabindex', '-1');
			return $blocker;
		},
		/**
   * Same as createBlocker but wraps the returned ele in a jq wrapper for api consistency in core
   * @returns {jqElement}
   */
		getJqBlocker: function getJqBlocker() {
			return this._wrapEleInJq(this.createBlocker());
		},
		/**
   * This is a non declarative convenience function to keep the API in core and its use of jq consistent
   * @param {*} parent jqEle or dom ele
   * @param {*} $blocker (optional) jqEle or dom ele
   * @returns {jqElement} a wrapped blocker element ref
   */
		show: function show(parent, $blocker) {
			if (!$blocker) {
				$blocker = this.createBlocker();
			} else if ($blocker.length > 0) {
				$blocker = $blocker[0];
			}
			parent = parent.length ? parent[0] : parent; // convert jq eles to normal dom eles
			parent.appendChild($blocker);
			return this._wrapEleInJq($blocker);
		},
		_wrapEleInJq: function _wrapEleInJq(domEle) {
			return $(domEle);
		}
	};
});
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