dom/base/nsDOMScriptObjectFactory.cpp

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dom/base/nsDOMScriptObjectFactory.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,128 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
     1.5 + * vim: set ts=2 sw=2 et tw=78:
     1.6 + *
     1.7 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/.
    1.10 + *
    1.11 + *
    1.12 + * This Original Code has been modified by IBM Corporation.
    1.13 + * Modifications made by IBM described herein are
    1.14 + * Copyright (c) International Business Machines
    1.15 + * Corporation, 2000
    1.16 + *
    1.17 + * Modifications to Mozilla code or documentation
    1.18 + * identified per MPL Section 3.3
    1.19 + *
    1.20 + * Date         Modified by     Description of modification
    1.21 + * 03/27/2000   IBM Corp.       Added PR_CALLBACK for Optlink
    1.22 + *                               use in OS2
    1.23 + */
    1.24 +
    1.25 +#include "nsDOMScriptObjectFactory.h"
    1.26 +#include "nsScriptNameSpaceManager.h"
    1.27 +#include "nsIObserverService.h"
    1.28 +#include "nsJSEnvironment.h"
    1.29 +#include "nsGlobalWindow.h"
    1.30 +#include "nsCRT.h"
    1.31 +#ifdef MOZ_XUL
    1.32 +#include "nsXULPrototypeCache.h"
    1.33 +#endif
    1.34 +#include "nsThreadUtils.h"
    1.35 +
    1.36 +using mozilla::dom::GetNameSpaceManager;
    1.37 +
    1.38 +nsDOMScriptObjectFactory::nsDOMScriptObjectFactory()
    1.39 +{
    1.40 +  nsCOMPtr<nsIObserverService> observerService =
    1.41 +    mozilla::services::GetObserverService();
    1.42 +  if (observerService) {
    1.43 +    observerService->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, false);
    1.44 +  }
    1.45 +
    1.46 +}
    1.47 +
    1.48 +NS_INTERFACE_MAP_BEGIN(nsDOMScriptObjectFactory)
    1.49 +  NS_INTERFACE_MAP_ENTRY(nsIDOMScriptObjectFactory)
    1.50 +  NS_INTERFACE_MAP_ENTRY(nsIObserver)
    1.51 +  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMScriptObjectFactory)
    1.52 +NS_INTERFACE_MAP_END
    1.53 +
    1.54 +
    1.55 +NS_IMPL_ADDREF(nsDOMScriptObjectFactory)
    1.56 +NS_IMPL_RELEASE(nsDOMScriptObjectFactory)
    1.57 +
    1.58 +NS_IMETHODIMP_(nsISupports *)
    1.59 +nsDOMScriptObjectFactory::GetClassInfoInstance(nsDOMClassInfoID aID)
    1.60 +{
    1.61 +  return NS_GetDOMClassInfoInstance(aID);
    1.62 +}
    1.63 +
    1.64 +NS_IMETHODIMP_(nsISupports *)
    1.65 +nsDOMScriptObjectFactory::GetExternalClassInfoInstance(const nsAString& aName)
    1.66 +{
    1.67 +  nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
    1.68 +  NS_ENSURE_TRUE(nameSpaceManager, nullptr);
    1.69 +
    1.70 +  const nsGlobalNameStruct *globalStruct = nameSpaceManager->LookupName(aName);
    1.71 +  if (globalStruct) {
    1.72 +    if (globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfoCreator) {
    1.73 +      nsresult rv;
    1.74 +      nsCOMPtr<nsIDOMCIExtension> creator(do_CreateInstance(globalStruct->mCID, &rv));
    1.75 +      NS_ENSURE_SUCCESS(rv, nullptr);
    1.76 +
    1.77 +      rv = creator->RegisterDOMCI(NS_ConvertUTF16toUTF8(aName).get(), this);
    1.78 +      NS_ENSURE_SUCCESS(rv, nullptr);
    1.79 +
    1.80 +      globalStruct = nameSpaceManager->LookupName(aName);
    1.81 +      NS_ENSURE_TRUE(globalStruct, nullptr);
    1.82 +
    1.83 +      NS_ASSERTION(globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo,
    1.84 +                   "The classinfo data for this class didn't get registered.");
    1.85 +    }
    1.86 +    if (globalStruct->mType == nsGlobalNameStruct::eTypeExternalClassInfo) {
    1.87 +      return nsDOMClassInfo::GetClassInfoInstance(globalStruct->mData);
    1.88 +    }
    1.89 +  }
    1.90 +  return nullptr;
    1.91 +}
    1.92 +
    1.93 +NS_IMETHODIMP
    1.94 +nsDOMScriptObjectFactory::Observe(nsISupports *aSubject,
    1.95 +                                  const char *aTopic,
    1.96 +                                  const char16_t *someData)
    1.97 +{
    1.98 +  if (!nsCRT::strcmp(aTopic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
    1.99 +#ifdef MOZ_XUL
   1.100 +    // Flush the XUL cache since it holds JS roots, and we're about to
   1.101 +    // start the final GC.
   1.102 +    nsXULPrototypeCache* cache = nsXULPrototypeCache::GetInstance();
   1.103 +
   1.104 +    if (cache)
   1.105 +      cache->Flush();
   1.106 +#endif
   1.107 +  }
   1.108 +
   1.109 +  return NS_OK;
   1.110 +}
   1.111 +
   1.112 +NS_IMETHODIMP
   1.113 +nsDOMScriptObjectFactory::RegisterDOMClassInfo(const char *aName,
   1.114 +					       nsDOMClassInfoExternalConstructorFnc aConstructorFptr,
   1.115 +					       const nsIID *aProtoChainInterface,
   1.116 +					       const nsIID **aInterfaces,
   1.117 +					       uint32_t aScriptableFlags,
   1.118 +					       bool aHasClassInterface,
   1.119 +					       const nsCID *aConstructorCID)
   1.120 +{
   1.121 +  nsScriptNameSpaceManager *nameSpaceManager = GetNameSpaceManager();
   1.122 +  NS_ENSURE_TRUE(nameSpaceManager, NS_ERROR_NOT_INITIALIZED);
   1.123 +
   1.124 +  return nameSpaceManager->RegisterDOMCIData(aName,
   1.125 +                                             aConstructorFptr,
   1.126 +                                             aProtoChainInterface,
   1.127 +                                             aInterfaces,
   1.128 +                                             aScriptableFlags,
   1.129 +                                             aHasClassInterface,
   1.130 +                                             aConstructorCID);
   1.131 +}

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