CacheStorage.h - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 mozilla_dom_cache_CacheStorage_h

#define mozilla_dom_cache_CacheStorage_h

#include "mozilla/UniquePtr.h"

#include "mozilla/dom/cache/Types.h"

#include "mozilla/dom/cache/TypeUtils.h"

#include "nsCOMPtr.h"

#include "nsISupportsImpl.h"

#include "nsTArray.h"

#include "nsWrapperCache.h"

class nsIGlobalObject;

namespace mozilla {

class ErrorResult;

enum UseCounter : int16_t;

enum class UseCounterWorker : int16_t;

namespace ipc {

class PrincipalInfo;

}  // namespace ipc

namespace dom {

enum class CacheStorageNamespace : uint8_t;

class Promise;

class WorkerPrivate;

namespace cache {

class CacheStorageChild;

class CacheWorkerRef;

class CacheStorage final : public nsISupports,

                           public nsWrapperCache,

                           public TypeUtils {

  using PBackgroundChild = mozilla::ipc::PBackgroundChild;

 public:

  static already_AddRefed<CacheStorage> CreateOnMainThread(

      Namespace aNamespace, nsIGlobalObject* aGlobal, nsIPrincipal* aPrincipal,

      bool aForceTrustedOrigin, ErrorResult& aRv);

  static already_AddRefed<CacheStorage> CreateOnWorker(

      Namespace aNamespace, nsIGlobalObject* aGlobal,

      WorkerPrivate* aWorkerPrivate, ErrorResult& aRv);

  static bool DefineCaches(JSContext* aCx, JS::Handle<JSObject*> aGlobal);

  // webidl interface methods

  already_AddRefed<Promise> Match(JSContext* aCx,

                                  const RequestOrUTF8String& aRequest,

                                  const MultiCacheQueryOptions& aOptions,

                                  ErrorResult& aRv);

  already_AddRefed<Promise> Has(const nsAString& aKey, ErrorResult& aRv);

  already_AddRefed<Promise> Open(const nsAString& aKey, ErrorResult& aRv);

  already_AddRefed<Promise> Delete(const nsAString& aKey, ErrorResult& aRv);

  already_AddRefed<Promise> Keys(ErrorResult& aRv);

  // chrome-only webidl interface methods

  static already_AddRefed<CacheStorage> Constructor(

      const GlobalObject& aGlobal, CacheStorageNamespace aNamespace,

      nsIPrincipal* aPrincipal, ErrorResult& aRv);

  // binding methods

  nsISupports* GetParentObject() const;

  virtual JSObject* WrapObject(JSContext* aContext,

                               JS::Handle<JSObject*> aGivenProto) override;

  // Called when CacheStorageChild actor is being destroyed

  void DestroyInternal(CacheStorageChild* aActor);

  // TypeUtils methods

  virtual nsIGlobalObject* GetGlobalObject() const override;

#ifdef DEBUG

  virtual void AssertOwningThread() const override;

#endif

  virtual mozilla::ipc::PBackgroundChild* GetIPCManager() override;

 private:

  CacheStorage(Namespace aNamespace, nsIGlobalObject* aGlobal,

               const mozilla::ipc::PrincipalInfo& aPrincipalInfo,

               SafeRefPtr<CacheWorkerRef> aWorkerRef);

  explicit CacheStorage(nsresult aFailureResult);

  ~CacheStorage();

  struct Entry;

  void RunRequest(UniquePtr<Entry> aEntry);

  OpenMode GetOpenMode() const;

  bool HasStorageAccess(UseCounter aLabel, UseCounterWorker aLabelWorker) const;

  const Namespace mNamespace;

  nsCOMPtr<nsIGlobalObject> mGlobal;

  const UniquePtr<mozilla::ipc::PrincipalInfo> mPrincipalInfo;

  // weak ref cleared in DestroyInternal

  CacheStorageChild* mActor;

  nsresult mStatus;

 public:

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS

  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(CacheStorage)

};

}  // namespace cache

}  // namespace dom

}  // namespace mozilla

#endif  // mozilla_dom_cache_CacheStorage_h