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108 lines
2.5 KiB
C++
108 lines
2.5 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 mozilla_dom_localstorage_LSDatabase_h
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#define mozilla_dom_localstorage_LSDatabase_h
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#include <cstdint>
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#include "ErrorList.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/StaticPtr.h"
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#include "nsISupports.h"
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#include "nsString.h"
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#include "nsTArrayForwardDeclare.h"
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namespace mozilla {
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namespace dom {
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class LSDatabaseChild;
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class LSNotifyInfo;
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class LSObject;
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class LSSnapshot;
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class LSDatabase final {
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class Observer;
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LSDatabaseChild* mActor;
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LSSnapshot* mSnapshot;
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const nsCString mOrigin;
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bool mAllowedToClose;
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bool mRequestedAllowToClose;
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static StaticRefPtr<Observer> sObserver;
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public:
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explicit LSDatabase(const nsACString& aOrigin);
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static LSDatabase* Get(const nsACString& aOrigin);
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NS_INLINE_DECL_REFCOUNTING(LSDatabase)
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void AssertIsOnOwningThread() const { NS_ASSERT_OWNINGTHREAD(LSDatabase); }
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void SetActor(LSDatabaseChild* aActor);
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void ClearActor() {
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AssertIsOnOwningThread();
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MOZ_ASSERT(mActor);
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mActor = nullptr;
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}
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bool HasActiveSnapshot() const {
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AssertIsOnOwningThread();
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return !!mSnapshot;
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}
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bool IsAllowedToClose() const {
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AssertIsOnOwningThread();
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return mAllowedToClose;
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}
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void RequestAllowToClose();
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void NoteFinishedSnapshot(LSSnapshot* aSnapshot);
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nsresult GetLength(LSObject* aObject, uint32_t* aResult);
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nsresult GetKey(LSObject* aObject, uint32_t aIndex, nsAString& aResult);
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nsresult GetItem(LSObject* aObject, const nsAString& aKey,
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nsAString& aResult);
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nsresult GetKeys(LSObject* aObject, nsTArray<nsString>& aKeys);
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nsresult SetItem(LSObject* aObject, const nsAString& aKey,
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const nsAString& aValue, LSNotifyInfo& aNotifyInfo);
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nsresult RemoveItem(LSObject* aObject, const nsAString& aKey,
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LSNotifyInfo& aNotifyInfo);
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nsresult Clear(LSObject* aObject, LSNotifyInfo& aNotifyInfo);
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nsresult BeginExplicitSnapshot(LSObject* aObject);
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nsresult EndExplicitSnapshot(LSObject* aObject);
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private:
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~LSDatabase();
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nsresult EnsureSnapshot(LSObject* aObject, const nsAString& aKey,
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bool aExplicit = false);
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void AllowToClose();
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_localstorage_LSDatabase_h
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