dom/webidl/AnonymousContent.webidl
author Carsten "Tomcat" Book <cbook@mozilla.com>
Fri, 17 Mar 2017 08:18:53 +0100
changeset 348195 2f9cdacc5359cd680a70abfc6e526292e76f6200
parent 348174 39ee9556d4a065ba77c11980dc6d814fe79865dc
child 348336 f5a5a605ae823a1cce72fecf4b4da4e8380f66b5
permissions -rw-r--r--
Backed out changeset 39ee9556d4a0 (bug 1346623)

/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/.
 */

/*
 * This file declares the AnonymousContent interface which is used to
 * manipulate content that has been inserted into the document's canvasFrame
 * anonymous container.
 * See Document.insertAnonymousContent.
 *
 * This API never returns a reference to the actual inserted DOM node on
 * purpose. This is to make sure the content cannot be randomly changed and the
 * DOM cannot be traversed from the node, so that Gecko can remain in control of
 * the inserted content.
 */

[ChromeOnly]
interface AnonymousContent {
  /**
   * Get the text content of an element inside this custom anonymous content.
   */
  [Throws]
  DOMString getTextContentForElement(DOMString elementId);

  /**
   * Set the text content of an element inside this custom anonymous content.
   */
  [Throws]
  void setTextContentForElement(DOMString elementId, DOMString text);

  /**
   * Get the value of an attribute of an element inside this custom anonymous
   * content.
   */
  [Throws]
  DOMString? getAttributeForElement(DOMString elementId,
                                    DOMString attributeName);

  /**
   * Set the value of an attribute of an element inside this custom anonymous
   * content.
   */
  [Throws]
  void setAttributeForElement(DOMString elementId,
                              DOMString attributeName,
                              DOMString value);

  /**
   * Remove an attribute from an element inside this custom anonymous content.
   */
  [Throws]
  void removeAttributeForElement(DOMString elementId,
                                 DOMString attributeName);

  /**
   * Get the canvas' context for the element specified if it's a <canvas>
   * node, `null` otherwise.
   */
  [Throws]
  nsISupports? getCanvasContext(DOMString elementId,
                                DOMString contextId);

  [Func="nsDocument::IsElementAnimateEnabled", Throws]
  Animation setAnimationForElement(DOMString elementId,
                                   object? keyframes,
                                   optional UnrestrictedDoubleOrKeyframeAnimationOptions
                                     options);

  /**
   * Accepts a list of (possibly overlapping) DOMRects which describe a shape
   * in CSS pixels relative to the element's border box. This shape will be
   * excluded from the element's background color rendering. The element will
   * not render any background images once this method has been called.
   */
  [Throws]
  void setCutoutRectsForElement(DOMString elementId,
                                sequence<DOMRect> rects);
};