@microsoft/sp-webpart-base/lib/core/classicPages/ClassicPageUtils.js

SharePoint Framework support for building web parts

/**
 * This file contains code for the ClientSideWebPartManager. The webpart host is expected to
 * load and manage webparts through the webpart manager APIs.
 */
import { EnvironmentType, Validate } from '@microsoft/sp-core-library';
/**
 * Utility class to help fixup web part DOM in classic pages to make the behaviour consistent.
 *
 * @internal
 */
var ClassicPageUtils = /** @class */ (function () {
    function ClassicPageUtils() {
    }
    /**
     * Disable all automatic postbacks by button clicks or enter in an input tag.
     */
    ClassicPageUtils.disableAutomaticPostbacks = function (domElement, env) {
        Validate.isNotNullOrUndefined(domElement, 'domElement');
        if (env === EnvironmentType.ClassicSharePoint) {
            /**
             * These are temporary fixes to disable the postbacks in classic pages. This works well with React
             * based web parts because the eventing happens through the React synthetic events and not the
             * browser native events. This may cause problems with non-React based web parts. We may need to
             * revisit this fix and come up with a better fix. . (SPPPLAT VSO#243894) tracks creating a better fix.
             */
            domElement.addEventListener('click', function (event) {
                event.preventDefault ? event.preventDefault() : (event.returnValue = false);
            }, true /* useCapture */);
            domElement.addEventListener('keydown', function (event) {
                if (event.keyCode === 13) {
                    event.preventDefault ? event.preventDefault() : (event.returnValue = false);
                }
            }, true /* useCapture */);
        }
    };
    /**
     * Method to remove the unwanted old fabric styles from the page, which are being injected from the
     * server side. Permanent fix would be remove the server side injection.
     *
     * todo: (VSO SPPPLAT#258820) Remove fabric.min.css and related injections from the server side on the classic page.
     */
    ClassicPageUtils.removeFabricLinks = function () {
        var links = document.getElementsByTagName('link');
        if (links && links.length) {
            for (var i = 0; i < links.length; i++) {
                if (links[i] && links[i].href.indexOf('fabric.min.css') !== -1) {
                    var parentNode = links[i].parentNode;
                    if (parentNode) {
                        parentNode.removeChild(links[i]);
                    }
                }
            }
        }
    };
    return ClassicPageUtils;
}());
export default ClassicPageUtils;
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