gecko-dev/xpcom/components/nsComponentManagerUtils.cpp

/* -*- 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 nsXPCOM_h__
#  include "nsXPCOM.h"
#endif

#ifndef nsCOMPtr_h__
#  include "nsCOMPtr.h"
#endif

#include "nsComponentManagerUtils.h"
#include "nsServiceManagerUtils.h"

#include "nsIComponentManager.h"

#ifndef MOZILLA_INTERNAL_API

nsresult CallGetService(const nsCID& aCID, const nsIID& aIID, void** aResult) {
  nsCOMPtr<nsIServiceManager> servMgr;
  nsresult status = NS_GetServiceManager(getter_AddRefs(servMgr));
  if (servMgr) {
    status = servMgr->GetService(aCID, aIID, aResult);
  }
  return status;
}

nsresult CallGetService(const char* aContractID, const nsIID& aIID,
                        void** aResult) {
  nsCOMPtr<nsIServiceManager> servMgr;
  nsresult status = NS_GetServiceManager(getter_AddRefs(servMgr));
  if (servMgr) {
    status = servMgr->GetServiceByContractID(aContractID, aIID, aResult);
  }
  return status;
}

#else

#  include "nsComponentManager.h"

nsresult CallGetService(const nsCID& aCID, const nsIID& aIID, void** aResult) {
  nsComponentManagerImpl* compMgr = nsComponentManagerImpl::gComponentManager;
  if (!compMgr) {
    return NS_ERROR_NOT_INITIALIZED;
  }

  return compMgr->nsComponentManagerImpl::GetService(aCID, aIID, aResult);
}

nsresult CallGetService(const char* aContractID, const nsIID& aIID,
                        void** aResult) {
  nsComponentManagerImpl* compMgr = nsComponentManagerImpl::gComponentManager;
  if (!compMgr) {
    return NS_ERROR_NOT_INITIALIZED;
  }

  return compMgr->nsComponentManagerImpl::GetServiceByContractID(aContractID,
                                                                 aIID, aResult);
}

#endif

#ifndef MOZILLA_INTERNAL_API

nsresult CallCreateInstance(const nsCID& aCID, nsISupports* aDelegate,
                            const nsIID& aIID, void** aResult) {
  nsCOMPtr<nsIComponentManager> compMgr;
  nsresult status = NS_GetComponentManager(getter_AddRefs(compMgr));
  if (compMgr) {
    status = compMgr->CreateInstance(aCID, aDelegate, aIID, aResult);
  }
  return status;
}

nsresult CallCreateInstance(const char* aContractID, nsISupports* aDelegate,
                            const nsIID& aIID, void** aResult) {
  nsCOMPtr<nsIComponentManager> compMgr;
  nsresult status = NS_GetComponentManager(getter_AddRefs(compMgr));
  if (compMgr)
    status = compMgr->CreateInstanceByContractID(aContractID, aDelegate, aIID,
                                                 aResult);
  return status;
}

nsresult CallGetClassObject(const nsCID& aCID, const nsIID& aIID,
                            void** aResult) {
  nsCOMPtr<nsIComponentManager> compMgr;
  nsresult status = NS_GetComponentManager(getter_AddRefs(compMgr));
  if (compMgr) {
    status = compMgr->GetClassObject(aCID, aIID, aResult);
  }
  return status;
}

nsresult CallGetClassObject(const char* aContractID, const nsIID& aIID,
                            void** aResult) {
  nsCOMPtr<nsIComponentManager> compMgr;
  nsresult status = NS_GetComponentManager(getter_AddRefs(compMgr));
  if (compMgr)
    status = compMgr->GetClassObjectByContractID(aContractID, aIID, aResult);
  return status;
}

#else

#  include "nsComponentManager.h"

nsresult CallCreateInstance(const nsCID& aCID, nsISupports* aDelegate,
                            const nsIID& aIID, void** aResult) {
  nsComponentManagerImpl* compMgr = nsComponentManagerImpl::gComponentManager;
  if (NS_WARN_IF(!compMgr)) {
    return NS_ERROR_NOT_INITIALIZED;
  }

  return compMgr->nsComponentManagerImpl::CreateInstance(aCID, aDelegate, aIID,
                                                         aResult);
}

nsresult CallCreateInstance(const char* aContractID, nsISupports* aDelegate,
                            const nsIID& aIID, void** aResult) {
  nsComponentManagerImpl* compMgr = nsComponentManagerImpl::gComponentManager;
  if (NS_WARN_IF(!compMgr)) {
    return NS_ERROR_NOT_INITIALIZED;
  }

  return compMgr->nsComponentManagerImpl::CreateInstanceByContractID(
      aContractID, aDelegate, aIID, aResult);
}

nsresult CallGetClassObject(const nsCID& aCID, const nsIID& aIID,
                            void** aResult) {
  nsComponentManagerImpl* compMgr = nsComponentManagerImpl::gComponentManager;
  if (NS_WARN_IF(!compMgr)) {
    return NS_ERROR_NOT_INITIALIZED;
  }

  return compMgr->nsComponentManagerImpl::GetClassObject(aCID, aIID, aResult);
}

nsresult CallGetClassObject(const char* aContractID, const nsIID& aIID,
                            void** aResult) {
  nsComponentManagerImpl* compMgr = nsComponentManagerImpl::gComponentManager;
  if (NS_WARN_IF(!compMgr)) {
    return NS_ERROR_NOT_INITIALIZED;
  }

  return compMgr->nsComponentManagerImpl::GetClassObjectByContractID(
      aContractID, aIID, aResult);
}

#endif

nsresult nsCreateInstanceByCID::operator()(const nsIID& aIID,
                                           void** aInstancePtr) const {
  nsresult status = CallCreateInstance(mCID, nullptr, aIID, aInstancePtr);
  if (NS_FAILED(status)) {
    *aInstancePtr = 0;
  }
  if (mErrorPtr) {
    *mErrorPtr = status;
  }
  return status;
}

nsresult nsCreateInstanceByContractID::operator()(const nsIID& aIID,
                                                  void** aInstancePtr) const {
  nsresult status =
      CallCreateInstance(mContractID, nullptr, aIID, aInstancePtr);
  if (NS_FAILED(status)) {
    *aInstancePtr = 0;
  }
  if (mErrorPtr) {
    *mErrorPtr = status;
  }
  return status;
}

nsresult nsCreateInstanceFromFactory::operator()(const nsIID& aIID,
                                                 void** aInstancePtr) const {
  nsresult status = mFactory->CreateInstance(nullptr, aIID, aInstancePtr);
  if (NS_FAILED(status)) {
    *aInstancePtr = 0;
  }
  if (mErrorPtr) {
    *mErrorPtr = status;
  }
  return status;
}

nsresult nsGetClassObjectByCID::operator()(const nsIID& aIID,
                                           void** aInstancePtr) const {
  nsresult status = CallGetClassObject(mCID, aIID, aInstancePtr);
  if (NS_FAILED(status)) {
    *aInstancePtr = 0;
  }
  if (mErrorPtr) {
    *mErrorPtr = status;
  }
  return status;
}

nsresult nsGetClassObjectByContractID::operator()(const nsIID& aIID,
                                                  void** aInstancePtr) const {
  nsresult status = CallGetClassObject(mContractID, aIID, aInstancePtr);
  if (NS_FAILED(status)) {
    *aInstancePtr = 0;
  }
  if (mErrorPtr) {
    *mErrorPtr = status;
  }
  return status;
}

nsresult nsGetServiceByCID::operator()(const nsIID& aIID,
                                       void** aInstancePtr) const {
  nsresult status = CallGetService(mCID, aIID, aInstancePtr);
  if (NS_FAILED(status)) {
    *aInstancePtr = 0;
  }

  return status;
}

nsresult nsGetServiceByCIDWithError::operator()(const nsIID& aIID,
                                                void** aInstancePtr) const {
  nsresult status = CallGetService(mCID, aIID, aInstancePtr);
  if (NS_FAILED(status)) {
    *aInstancePtr = 0;
  }

  if (mErrorPtr) {
    *mErrorPtr = status;
  }
  return status;
}

nsresult nsGetServiceByContractID::operator()(const nsIID& aIID,
                                              void** aInstancePtr) const {
  nsresult status = CallGetService(mContractID, aIID, aInstancePtr);
  if (NS_FAILED(status)) {
    *aInstancePtr = 0;
  }

  return status;
}

nsresult nsGetServiceByContractIDWithError::operator()(
    const nsIID& aIID, void** aInstancePtr) const {
  nsresult status = CallGetService(mContractID, aIID, aInstancePtr);
  if (NS_FAILED(status)) {
    *aInstancePtr = 0;
  }

  if (mErrorPtr) {
    *mErrorPtr = status;
  }
  return status;
}