xpcom/ds/nsHashPropertyBag.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=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
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef nsHashPropertyBag_h___
   8 #define nsHashPropertyBag_h___
   9
  10 #include "nsIVariant.h"
  11 #include "nsIWritablePropertyBag.h"
  12 #include "nsIWritablePropertyBag2.h"
  13
  14 #include "nsCycleCollectionParticipant.h"
  15 #include "nsInterfaceHashtable.h"
  16
  17 class nsHashPropertyBagBase : public nsIWritablePropertyBag,
  18                               public nsIWritablePropertyBag2 {
  19  public:
  20   nsHashPropertyBagBase() = default;
  21
  22   void CopyFrom(const nsHashPropertyBagBase* aOther);
  23   void CopyFrom(nsIPropertyBag* aOther);
  24   static void CopyFrom(nsIWritablePropertyBag* aTo, nsIPropertyBag* aFrom);
  25
  26   NS_DECL_NSIPROPERTYBAG
  27   NS_DECL_NSIPROPERTYBAG2
  28
  29   NS_DECL_NSIWRITABLEPROPERTYBAG
  30   NS_DECL_NSIWRITABLEPROPERTYBAG2
  31
  32  protected:
  33   // a hash table of string -> nsIVariant
  34   nsInterfaceHashtable<nsStringHashKey, nsIVariant> mPropertyHash;
  35 };
  36
  37 class nsHashPropertyBag : public nsHashPropertyBagBase {
  38  public:
  39   nsHashPropertyBag() = default;
  40   NS_DECL_THREADSAFE_ISUPPORTS
  41
  42  protected:
  43   virtual ~nsHashPropertyBag();
  44 };
  45
  46 /* A cycle collected nsHashPropertyBag for main-thread-only use. */
  47 class nsHashPropertyBagCC final : public nsHashPropertyBagBase {
  48  public:
  49   nsHashPropertyBagCC() = default;
  50   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  51   NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsHashPropertyBagCC,
  52                                            nsIWritablePropertyBag)
  53  protected:
  54   virtual ~nsHashPropertyBagCC() = default;
  55 };
  56
  57 inline nsISupports* ToSupports(nsHashPropertyBagBase* aPropertyBag) {
  58   return static_cast<nsIWritablePropertyBag*>(aPropertyBag);
  59 }
  60
  61 #endif /* nsHashPropertyBag_h___ */