| /* | 
 |  * Copyright (C) 2016 Apple Inc. All Rights Reserved. | 
 |  * | 
 |  * Redistribution and use in source and binary forms, with or without | 
 |  * modification, are permitted provided that the following conditions | 
 |  * are met: | 
 |  * 1. Redistributions of source code must retain the above copyright | 
 |  *    notice, this list of conditions and the following disclaimer. | 
 |  * 2. Redistributions in binary form must reproduce the above copyright | 
 |  *    notice, this list of conditions and the following disclaimer in the | 
 |  *    documentation and/or other materials provided with the distribution. | 
 |  * | 
 |  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | 
 |  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 
 |  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 
 |  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR | 
 |  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 
 |  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 
 |  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 
 |  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 
 |  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 
 |  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 
 |  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 
 |  * | 
 |  */ | 
 |  | 
 | // https://dom.spec.whatwg.org/#documentorshadowroot | 
 | interface mixin DocumentOrShadowRoot { | 
 |     // Extensions from HTML (https://html.spec.whatwg.org/multipage/dom.html#documentorshadowroot) | 
 |     readonly attribute Element? activeElement; | 
 |  | 
 |     // FIXME: getSelection is currently defined only to be on Document in the Selection API spec | 
 |     // https://w3c.github.io/selection-api/#extensions-to-document-interface, but | 
 |     // previously had been defined to be on DocumentOrShadowRoot in the deprecated Shadow DOM spec | 
 |     // https://w3c.github.io/webcomponents/spec/shadow/#extensions-to-the-documentorshadowroot-mixin. | 
 |     // We should get this resolved in the Selection API spec and move this to the correct IDL files. | 
 |     // DOMSelection? getSelection(); | 
 |  | 
 |     // FIXME: These are currently defined only to be on Document in the CSSOM spec | 
 |     // https://drafts.csswg.org/cssom-view/#extensions-to-the-document-interface, but | 
 |     // previously had been defined to be on DocumentOrShadowRoot in the deprecated Shadow DOM spec | 
 |     // https://w3c.github.io/webcomponents/spec/shadow/#extensions-to-the-documentorshadowroot-mixin. | 
 |     // We should get this resolved in the CSSOM spec and move these to the correct IDL files. | 
 |     Element? elementFromPoint(double x, double y); | 
 |     sequence<Element> elementsFromPoint(double x, double y); | 
 |     // CaretPosition? caretPositionFromPoint(double x, double y); // FIXME: Implement this. | 
 | }; |