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/* 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/. */
#include "nsISupports.idl"
interface nsIDocShell;

/**
 * The nsIWebPageDescriptor interface allows content being displayed in one
 * window to be loaded into another window without refetching it from the
 * network.
 */

[scriptable, uuid(6f30b676-3710-4c2c-80b1-0395fb26516e)]
interface nsIWebPageDescriptor : nsISupports
{
 /**
  * Tells the object to load the page that otherDocShell is currently loading,
  * or has loaded already, as view source, with the url being `aURL`.
  *
  * @throws NS_ERROR_FAILURE - NS_ERROR_INVALID_POINTER
  */
  void loadPageAsViewSource(in nsIDocShell otherDocShell, in AString aURL);


 /**
  * Retrieves the page descriptor for the curent document.
  * @note, currentDescriptor is currently always an nsISHEntry object or null.
  */
  readonly attribute nsISupports currentDescriptor;
};