dom/ipc/PermissionMessageUtils.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef mozilla_dom_permission_message_utils_h__
   7 #define mozilla_dom_permission_message_utils_h__
   8
   9 #include "ipc/IPCMessageUtils.h"
  10 #include "nsCOMPtr.h"
  11 #include "nsIPrincipal.h"
  12
  13 namespace IPC {
  14
  15 class Principal {
  16   friend struct ParamTraits<Principal>;
  17
  18 public:
  19   Principal() : mPrincipal(nullptr) {}
  20   explicit Principal(nsIPrincipal* aPrincipal) : mPrincipal(aPrincipal) {}
  21   operator nsIPrincipal*() const { return mPrincipal.get(); }
  22
  23 private:
  24   // Unimplemented
  25   Principal& operator=(Principal&);
  26   nsCOMPtr<nsIPrincipal> mPrincipal;
  27 };
  28
  29 template <>
  30 struct ParamTraits<Principal>
  31 {
  32   typedef Principal paramType;
  33   static void Write(Message* aMsg, const paramType& aParam);
  34   static bool Read(const Message* aMsg, void** aIter, paramType* aResult);
  35 };
  36
  37 } // namespace IPC
  38
  39 #endif // mozilla_dom_permission_message_utils_h__
  40