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/* -*- Mode: IDL; tab-width: 4; 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/. */

#include "nsISupports.idl"
interface nsISHEntry;

[scriptable, uuid(077af5fd-7450-48db-8f03-16617d441141)]
interface nsIDocShellHistory : nsISupports
{
  /**
   * Get the SHEntry associated with a child docshell
   */
  nsISHEntry getChildSHEntry(in long aChildOffset);

  /**
   * Add a Child SHEntry for a frameset page, given the child's loadtype.
   * If aCloneChildren is true, then aCloneReference's children will be
   * cloned onto aHistoryEntry.
   */
  void addChildSHEntry(in nsISHEntry aCloneReference,
                       in nsISHEntry aHistoryEntry,
                       in long aChildOffset,
                       in unsigned long aLoadType,
                       in boolean aCloneChilden);

  /**
   * Whether this docshell should save entries in global history.
   */
  attribute boolean useGlobalHistory;

  /**
   * Removes nsISHEntry objects related to this docshell from session history.
   * Use this only with subdocuments, like iframes.
   */
  void removeFromSessionHistory();

  /**
   * Set when an iframe/frame is added dynamically.
   */
  attribute boolean createdDynamically;

  /**
   * Returns false for mLSHE, true for mOSHE
   */
  boolean getCurrentSHEntry(out nsISHEntry aEntry);
};