dom/datastore/DataStoreService.h

   1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
   2 /* vim: set ts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_DataStoreService_h
   8 #define mozilla_dom_DataStoreService_h
   9
  10 #include "mozilla/dom/PContent.h"
  11 #include "nsClassHashtable.h"
  12 #include "nsIDataStoreService.h"
  13 #include "nsIObserver.h"
  14 #include "nsRefPtrHashtable.h"
  15
  16 class nsIPrincipal;
  17 class nsIUUIDGenerator;
  18 class nsPIDOMWindow;
  19
  20 namespace mozilla {
  21 namespace dom {
  22
  23 class DataStoreInfo;
  24 class FirstRevisionIdCallback;
  25 class PendingRequest;
  26 class Promise;
  27 class RetrieveRevisionsCounter;
  28 class RevisionAddedEnableStoreCallback;
  29
  30 class DataStoreService MOZ_FINAL : public nsIDataStoreService
  31                                  , public nsIObserver
  32 {
  33   friend class ContentChild;
  34   friend class FirstRevisionIdCallback;
  35   friend class RetrieveRevisionsCounter;
  36   friend class RevisionAddedEnableStoreCallback;
  37
  38 public:
  39   NS_DECL_ISUPPORTS
  40   NS_DECL_NSIOBSERVER
  41   NS_DECL_NSIDATASTORESERVICE
  42
  43   // Returns the DataStoreService singleton. Only to be called from main
  44   // thread.
  45   static already_AddRefed<DataStoreService> GetOrCreate();
  46
  47   static already_AddRefed<DataStoreService> Get();
  48
  49   static void Shutdown();
  50
  51   static bool CheckPermission(nsIPrincipal* principal);
  52
  53   nsresult GenerateUUID(nsAString& aID);
  54
  55   nsresult GetDataStoresFromIPC(const nsAString& aName,
  56                                 const nsAString& aOwner,
  57                                 nsIPrincipal* aPrincipal,
  58                                 nsTArray<DataStoreSetting>* aValue);
  59
  60 private:
  61   DataStoreService();
  62   ~DataStoreService();
  63
  64   nsresult Init();
  65
  66   typedef nsClassHashtable<nsUint32HashKey, DataStoreInfo> HashApp;
  67
  68   nsresult AddPermissions(uint32_t aAppId, const nsAString& aName,
  69                           const nsAString& aOriginURL,
  70                           const nsAString& aManifestURL,
  71                           bool aReadOnly);
  72
  73   nsresult AddAccessPermissions(uint32_t aAppId, const nsAString& aName,
  74                                 const nsAString& aOriginURL,
  75                                 const nsAString& aManifestURL,
  76                                 bool aReadOnly);
  77
  78   nsresult CreateFirstRevisionId(uint32_t aAppId, const nsAString& aName,
  79                                  const nsAString& aManifestURL);
  80
  81   void GetDataStoresCreate(nsPIDOMWindow* aWindow, Promise* aPromise,
  82                            const nsTArray<DataStoreInfo>& aStores);
  83
  84   void GetDataStoresResolve(nsPIDOMWindow* aWindow, Promise* aPromise,
  85                             const nsTArray<DataStoreInfo>& aStores);
  86
  87   nsresult GetDataStoreInfos(const nsAString& aName, const nsAString& aOwner,
  88                              uint32_t aAppId, nsIPrincipal* aPrincipal,
  89                              nsTArray<DataStoreInfo>& aStores);
  90
  91   void DeleteDataStores(uint32_t aAppId);
  92
  93   nsresult EnableDataStore(uint32_t aAppId, const nsAString& aName,
  94                            const nsAString& aManifestURL);
  95
  96   already_AddRefed<RetrieveRevisionsCounter> GetCounter(uint32_t aId) const;
  97
  98   void RemoveCounter(uint32_t aId);
  99
 100   nsClassHashtable<nsStringHashKey, HashApp> mStores;
 101   nsClassHashtable<nsStringHashKey, HashApp> mAccessStores;
 102
 103   typedef nsTArray<PendingRequest> PendingRequests;
 104   nsClassHashtable<nsStringHashKey, PendingRequests> mPendingRequests;
 105
 106   nsRefPtrHashtable<nsUint32HashKey, RetrieveRevisionsCounter> mPendingCounters;
 107
 108   nsCOMPtr<nsIUUIDGenerator> mUUIDGenerator;
 109 };
 110
 111 } // namespace dom
 112 } // namespace mozilla
 113
 114 #endif // mozilla_dom_DataStoreService_h