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/* -*- Mode: C++; tab-width: 8; 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/. */
#ifndef nsSHEntryShared_h__
#define nsSHEntryShared_h__
#include "nsCOMPtr.h"
#include "nsAutoPtr.h"
#include "nsCOMArray.h"
#include "nsIBFCacheEntry.h"
#include "nsIMutationObserver.h"
#include "nsISHEntry.h"
#include "nsExpirationTracker.h"
#include "nsRect.h"
#include "nsString.h"
#include "mozilla/Attributes.h"
class nsSHEntry;
class nsISHEntry;
class nsIDocument;
class nsIContentViewer;
class nsIDocShellTreeItem;
class nsILayoutHistoryState;
class nsDocShellEditorData;
class nsIMutableArray;
// A document may have multiple SHEntries, either due to hash navigations or
// calls to history.pushState. SHEntries corresponding to the same document
// share many members; in particular, they share state related to the
// back/forward cache.
//
// nsSHEntryShared is the vehicle for this sharing.
class nsSHEntryShared final
: public nsIBFCacheEntry
, public nsIMutationObserver
{
public:
static void EnsureHistoryTracker();
static void Shutdown();
nsSHEntryShared();
NS_DECL_ISUPPORTS
NS_DECL_NSIMUTATIONOBSERVER
NS_DECL_NSIBFCACHEENTRY
nsExpirationState *GetExpirationState() { return &mExpirationState; }
private:
~nsSHEntryShared();
friend class nsSHEntry;
friend class HistoryTracker;
static already_AddRefed<nsSHEntryShared> Duplicate(nsSHEntryShared* aEntry);
void RemoveFromExpirationTracker();
void Expire();
nsresult SyncPresentationState();
void DropPresentationState();
nsresult SetContentViewer(nsIContentViewer* aViewer);
// See nsISHEntry.idl for an explanation of these members.
// These members are copied by nsSHEntryShared::Duplicate(). If you add a
// member here, be sure to update the Duplicate() implementation.
uint64_t mDocShellID;
nsCOMArray<nsIDocShellTreeItem> mChildShells;
nsCOMPtr<nsIPrincipal> mTriggeringPrincipal;
nsCOMPtr<nsIPrincipal> mPrincipalToInherit;
nsCString mContentType;
bool mIsFrameNavigation;
bool mSaveLayoutState;
bool mSticky;
bool mDynamicallyCreated;
nsCOMPtr<nsISupports> mCacheKey;
uint32_t mLastTouched;
// These members aren't copied by nsSHEntryShared::Duplicate() because
// they're specific to a particular content viewer.
uint64_t mID;
nsCOMPtr<nsIContentViewer> mContentViewer;
nsCOMPtr<nsIDocument> mDocument;
nsCOMPtr<nsILayoutHistoryState> mLayoutHistoryState;
bool mExpired;
nsCOMPtr<nsISupports> mWindowState;
nsIntRect mViewerBounds;
nsCOMPtr<nsIMutableArray> mRefreshURIList;
nsExpirationState mExpirationState;
nsAutoPtr<nsDocShellEditorData> mEditorData;
};
#endif
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