зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
3.3 KiB
C++
113 строки
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsSHEntryShared_h__
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#define nsSHEntryShared_h__
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#include "nsAutoPtr.h"
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#include "nsCOMArray.h"
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#include "nsCOMPtr.h"
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#include "nsExpirationTracker.h"
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#include "nsIBFCacheEntry.h"
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#include "nsIWeakReferenceUtils.h"
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#include "nsRect.h"
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#include "nsString.h"
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#include "nsStubMutationObserver.h"
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#include "mozilla/Attributes.h"
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class nsSHEntry;
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class nsISHEntry;
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class nsIContentViewer;
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class nsIDocShellTreeItem;
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class nsILayoutHistoryState;
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class nsDocShellEditorData;
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class nsIMutableArray;
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namespace mozilla {
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namespace dom {
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class Document;
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}
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} // namespace mozilla
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// A document may have multiple SHEntries, either due to hash navigations or
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// calls to history.pushState. SHEntries corresponding to the same document
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// share many members; in particular, they share state related to the
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// back/forward cache.
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//
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// nsSHEntryShared is the vehicle for this sharing.
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class nsSHEntryShared final : public nsIBFCacheEntry,
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public nsStubMutationObserver {
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public:
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static void EnsureHistoryTracker();
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static void Shutdown();
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nsSHEntryShared();
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NS_DECL_ISUPPORTS
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NS_DECL_NSIBFCACHEENTRY
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// The nsIMutationObserver bits we actually care about.
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NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED
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NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
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nsExpirationState* GetExpirationState() { return &mExpirationState; }
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private:
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~nsSHEntryShared();
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friend class nsSHEntry;
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static already_AddRefed<nsSHEntryShared> Duplicate(nsSHEntryShared* aEntry);
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void RemoveFromExpirationTracker();
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void SyncPresentationState();
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void DropPresentationState();
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nsresult SetContentViewer(nsIContentViewer* aViewer);
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// See nsISHEntry.idl for an explanation of these members.
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// These members are copied by nsSHEntryShared::Duplicate(). If you add a
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// member here, be sure to update the Duplicate() implementation.
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nsID mDocShellID;
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nsCOMArray<nsIDocShellTreeItem> mChildShells;
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nsCOMPtr<nsIPrincipal> mTriggeringPrincipal;
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nsCOMPtr<nsIPrincipal> mPrincipalToInherit;
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nsCOMPtr<nsIPrincipal> mStoragePrincipalToInherit;
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nsCOMPtr<nsIContentSecurityPolicy> mCsp;
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nsCString mContentType;
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uint32_t mCacheKey;
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uint32_t mLastTouched;
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// These members aren't copied by nsSHEntryShared::Duplicate() because
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// they're specific to a particular content viewer.
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uint64_t mID;
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nsCOMPtr<nsIContentViewer> mContentViewer;
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RefPtr<mozilla::dom::Document> mDocument;
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nsCOMPtr<nsILayoutHistoryState> mLayoutHistoryState;
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nsCOMPtr<nsISupports> mWindowState;
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nsIntRect mViewerBounds;
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nsCOMPtr<nsIMutableArray> mRefreshURIList;
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nsExpirationState mExpirationState;
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nsAutoPtr<nsDocShellEditorData> mEditorData;
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nsWeakPtr mSHistory;
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bool mIsFrameNavigation;
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bool mSaveLayoutState;
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bool mSticky;
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bool mDynamicallyCreated;
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// This flag is about necko cache, not bfcache.
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bool mExpired;
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};
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#endif
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