mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
123 lines
3.8 KiB
C++
123 lines
3.8 KiB
C++
/* -*- Mode: C++; 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/. */
|
|
|
|
#ifndef nsSHistory_h
|
|
#define nsSHistory_h
|
|
|
|
// Helper Classes
|
|
#include "nsCOMPtr.h"
|
|
|
|
//Interfaces Needed
|
|
#include "nsISHistory.h"
|
|
#include "nsISHistoryInternal.h"
|
|
#include "nsISHTransaction.h"
|
|
#include "nsIWebNavigation.h"
|
|
#include "nsIWeakReference.h"
|
|
#include "nsISimpleEnumerator.h"
|
|
#include "nsISHistoryListener.h"
|
|
#include "nsIHistoryEntry.h"
|
|
#include "nsIObserver.h"
|
|
|
|
// Needed to maintain global list of all SHistory objects
|
|
#include "prclist.h"
|
|
|
|
class nsIDocShell;
|
|
class nsSHEnumerator;
|
|
class nsSHistoryObserver;
|
|
class nsSHistory: public PRCList,
|
|
public nsISHistory,
|
|
public nsISHistoryInternal,
|
|
public nsIWebNavigation
|
|
{
|
|
public:
|
|
nsSHistory();
|
|
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSISHISTORY
|
|
NS_DECL_NSISHISTORYINTERNAL
|
|
NS_DECL_NSIWEBNAVIGATION
|
|
|
|
// One time initialization method called upon docshell module construction
|
|
static nsresult Startup();
|
|
static void Shutdown();
|
|
static void UpdatePrefs();
|
|
|
|
// Max number of total cached content viewers. If the pref
|
|
// browser.sessionhistory.max_total_viewers is negative, then
|
|
// this value is calculated based on the total amount of memory.
|
|
// Otherwise, it comes straight from the pref.
|
|
static PRUint32 GetMaxTotalViewers() { return sHistoryMaxTotalViewers; }
|
|
|
|
protected:
|
|
virtual ~nsSHistory();
|
|
friend class nsSHEnumerator;
|
|
friend class nsSHistoryObserver;
|
|
|
|
// Could become part of nsIWebNavigation
|
|
NS_IMETHOD GetEntryAtIndex(PRInt32 aIndex, bool aModifyIndex, nsISHEntry** aResult);
|
|
NS_IMETHOD GetTransactionAtIndex(PRInt32 aIndex, nsISHTransaction ** aResult);
|
|
nsresult CompareFrames(nsISHEntry * prevEntry, nsISHEntry * nextEntry, nsIDocShell * rootDocShell, long aLoadType, bool * aIsFrameFound);
|
|
nsresult InitiateLoad(nsISHEntry * aFrameEntry, nsIDocShell * aFrameDS, long aLoadType);
|
|
|
|
NS_IMETHOD LoadEntry(PRInt32 aIndex, long aLoadType, PRUint32 histCmd);
|
|
|
|
#ifdef DEBUG
|
|
nsresult PrintHistory();
|
|
#endif
|
|
|
|
// Evict content viewers in this window which don't lie in the "safe" range
|
|
// around aIndex.
|
|
void EvictOutOfRangeWindowContentViewers(PRInt32 aIndex);
|
|
static void GloballyEvictContentViewers();
|
|
static void GloballyEvictAllContentViewers();
|
|
|
|
// Calculates a max number of total
|
|
// content viewers to cache, based on amount of total memory
|
|
static PRUint32 CalcMaxTotalViewers();
|
|
|
|
void RemoveDynEntries(PRInt32 aOldIndex, PRInt32 aNewIndex);
|
|
|
|
nsresult LoadNextPossibleEntry(PRInt32 aNewIndex, long aLoadType, PRUint32 aHistCmd);
|
|
protected:
|
|
// aIndex is the index of the transaction which may be removed.
|
|
// If aKeepNext is true, aIndex is compared to aIndex + 1,
|
|
// otherwise comparison is done to aIndex - 1.
|
|
bool RemoveDuplicate(PRInt32 aIndex, bool aKeepNext);
|
|
|
|
nsCOMPtr<nsISHTransaction> mListRoot;
|
|
PRInt32 mIndex;
|
|
PRInt32 mLength;
|
|
PRInt32 mRequestedIndex;
|
|
// Session History listener
|
|
nsWeakPtr mListener;
|
|
// Weak reference. Do not refcount this.
|
|
nsIDocShell * mRootDocShell;
|
|
|
|
// Max viewers allowed total, across all SHistory objects
|
|
static PRInt32 sHistoryMaxTotalViewers;
|
|
};
|
|
//*****************************************************************************
|
|
//*** nsSHEnumerator: Object Management
|
|
//*****************************************************************************
|
|
class nsSHEnumerator : public nsISimpleEnumerator
|
|
{
|
|
public:
|
|
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSISIMPLEENUMERATOR
|
|
|
|
nsSHEnumerator(nsSHistory * aHistory);
|
|
|
|
protected:
|
|
friend class nsSHistory;
|
|
virtual ~nsSHEnumerator();
|
|
private:
|
|
PRInt32 mIndex;
|
|
nsSHistory * mSHistory;
|
|
};
|
|
|
|
#endif /* nsSHistory */
|