dom/indexedDB/IDBWrapperCache.h

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/dom/indexedDB/IDBWrapperCache.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,66 @@
     1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* vim: set ts=2 et sw=2 tw=80: */
     1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this file,
     1.8 + * You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.9 +
    1.10 +#ifndef mozilla_dom_indexeddb_idbwrappercache_h__
    1.11 +#define mozilla_dom_indexeddb_idbwrappercache_h__
    1.12 +
    1.13 +#include "mozilla/DOMEventTargetHelper.h"
    1.14 +#include "mozilla/dom/indexedDB/IndexedDatabase.h"
    1.15 +
    1.16 +BEGIN_INDEXEDDB_NAMESPACE
    1.17 +
    1.18 +class IDBWrapperCache : public DOMEventTargetHelper
    1.19 +{
    1.20 +public:
    1.21 +  NS_DECL_ISUPPORTS_INHERITED
    1.22 +  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(
    1.23 +                                                   IDBWrapperCache,
    1.24 +                                                   DOMEventTargetHelper)
    1.25 +
    1.26 +  JSObject* GetScriptOwner() const
    1.27 +  {
    1.28 +    return mScriptOwner;
    1.29 +  }
    1.30 +  void SetScriptOwner(JSObject* aScriptOwner);
    1.31 +
    1.32 +  JSObject* GetParentObject()
    1.33 +  {
    1.34 +    if (mScriptOwner) {
    1.35 +      return mScriptOwner;
    1.36 +    }
    1.37 +
    1.38 +    // Do what nsEventTargetSH::PreCreate does.
    1.39 +    nsCOMPtr<nsIScriptGlobalObject> parent;
    1.40 +    DOMEventTargetHelper::GetParentObject(getter_AddRefs(parent));
    1.41 +
    1.42 +    return parent ? parent->GetGlobalJSObject() : nullptr;
    1.43 +  }
    1.44 +
    1.45 +#ifdef DEBUG
    1.46 +  void AssertIsRooted() const;
    1.47 +#else
    1.48 +  inline void AssertIsRooted() const
    1.49 +  {
    1.50 +  }
    1.51 +#endif
    1.52 +
    1.53 +protected:
    1.54 +  IDBWrapperCache(DOMEventTargetHelper* aOwner)
    1.55 +    : DOMEventTargetHelper(aOwner), mScriptOwner(nullptr)
    1.56 +  { }
    1.57 +  IDBWrapperCache(nsPIDOMWindow* aOwner)
    1.58 +    : DOMEventTargetHelper(aOwner), mScriptOwner(nullptr)
    1.59 +  { }
    1.60 +
    1.61 +  virtual ~IDBWrapperCache();
    1.62 +
    1.63 +private:
    1.64 +  JS::Heap<JSObject*> mScriptOwner;
    1.65 +};
    1.66 +
    1.67 +END_INDEXEDDB_NAMESPACE
    1.68 +
    1.69 +#endif // mozilla_dom_indexeddb_idbwrappercache_h__

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