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/**
* @license Copyright (c) 2003-2021, CKSource - Frederico Knabben. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
*/
/**
* @module utils/elementreplacer
*/
/**
* Utility class allowing to hide existing HTML elements or replace them with given ones in a way that doesn't remove
* the original elements from the DOM.
*/
export default class ElementReplacer {
constructor() {
/**
* The elements replaced by {@link #replace} and their replacements.
*
* @private
* @member {Array.<Object>}
*/
this._replacedElements = [];
}
/**
* Hides the `element` and, if specified, inserts the the given element next to it.
*
* The effect of this method can be reverted by {@link #restore}.
*
* @param {HTMLElement} element The element to replace.
* @param {HTMLElement} [newElement] The replacement element. If not passed, then the `element` will just be hidden.
*/
replace( element, newElement ) {
this._replacedElements.push( { element, newElement } );
element.style.display = 'none';
if ( newElement ) {
element.parentNode.insertBefore( newElement, element.nextSibling );
}
}
/**
* Restores what {@link #replace} did.
*/
restore() {
this._replacedElements.forEach( ( { element, newElement } ) => {
element.style.display = '';
if ( newElement ) {
newElement.remove();
}
} );
this._replacedElements = [];
}
}