author Ehsan Akhgari <>
Thu, 06 Feb 2014 13:28:14 -0500
changeset 172757 20a329b254aed056453d859c65a13639c293d433
parent 150388 69da3bab9facb91f0e845443f90bf611b6b46a53
child 249306 9a2e34bd13e9583259cf649a0c284b9d27870281
permissions -rw-r--r--
Bug 968643 - Part 1: Stop using [PrefControlled]; r=bzbarsky

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 */
#include "nsISupports.idl"

interface nsIBFCacheEntry;
interface nsISHEntry;
interface nsISHistoryListener;
interface nsISHTransaction;
interface nsIDocShell;
interface nsIURI;

{ 0x9c47c121, 0x1c6e, 0x4d8f, \
  { 0xb9, 0x04, 0x3a, 0xc9, 0x68, 0x11, 0x6e, 0x88 } }


#include "nsTArrayForwardDeclare.h"

[ref] native nsDocshellIDArray(nsTArray<uint64_t>);

[scriptable, uuid(f9348014-0239-11e2-b029-3d38e719eb2d)]
interface nsISHistoryInternal: nsISupports
   * Add a new Entry to the History List
   * @param aEntry - The entry to add
   * @param aPersist - If true this specifies that the entry should persist
   * in the list.  If false, this means that when new entries are added
   * this element will not appear in the session history list.
   void  addEntry(in nsISHEntry aEntry, in boolean aPersist);

   * Get the root transaction
   readonly attribute nsISHTransaction rootTransaction;

   * The toplevel docshell object to which this SHistory object belongs to.
   attribute nsIDocShell rootDocShell;

   * Update the index maintained by sessionHistory
   void updateIndex();

   * Replace the nsISHEntry at a particular index
   * @param aIndex - The index at which the entry should be replaced
   * @param aReplaceEntry - The replacement entry for the index.
   void replaceEntry(in long aIndex, in nsISHEntry aReplaceEntry);

   * Notifies all registered session history listeners about an impending
   * reload.
   * @param aReloadURI    The URI of the document to be reloaded.
   * @param aReloadFlags  Flags that indicate how the document is to be
   *                      refreshed. See constants on the nsIWebNavigation
   *                      interface.
   * @return              Whether the operation can proceed.
   boolean notifyOnHistoryReload(in nsIURI aReloadURI, in unsigned long aReloadFlags);

    * Evict content viewers which don't lie in the "safe" range around aIndex.
    * In practice, this should leave us with no more than gHistoryMaxViewers
    * viewers associated with this SHistory object.
    * Also make sure that the total number of content viewers in all windows is
    * not greater than our global max; if it is, evict viewers as appropriate.
    * @param aIndex - The index around which the "safe" range is centered.  In
    *   general, if you just navigated the history, aIndex should be the index
    *   history was navigated to.
   void evictOutOfRangeContentViewers(in long aIndex);
    * Evict the content viewer associated with a bfcache entry
    * that has timed out.
   void evictExpiredContentViewerForEntry(in nsIBFCacheEntry aEntry);

    * Evict all the content viewers in this session history
   void evictAllContentViewers();

    * Removes entries from the history if their docshellID is in
    * aIDs array.
  [noscript, notxpcom] void RemoveEntries(in nsDocshellIDArray aIDs,
                                          in long aStartIndex);