michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_dom_indexeddb_idbwrappercache_h__
michael@0: #define mozilla_dom_indexeddb_idbwrappercache_h__
michael@0: 
michael@0: #include "mozilla/DOMEventTargetHelper.h"
michael@0: #include "mozilla/dom/indexedDB/IndexedDatabase.h"
michael@0: 
michael@0: BEGIN_INDEXEDDB_NAMESPACE
michael@0: 
michael@0: class IDBWrapperCache : public DOMEventTargetHelper
michael@0: {
michael@0: public:
michael@0:   NS_DECL_ISUPPORTS_INHERITED
michael@0:   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(
michael@0:                                                    IDBWrapperCache,
michael@0:                                                    DOMEventTargetHelper)
michael@0: 
michael@0:   JSObject* GetScriptOwner() const
michael@0:   {
michael@0:     return mScriptOwner;
michael@0:   }
michael@0:   void SetScriptOwner(JSObject* aScriptOwner);
michael@0: 
michael@0:   JSObject* GetParentObject()
michael@0:   {
michael@0:     if (mScriptOwner) {
michael@0:       return mScriptOwner;
michael@0:     }
michael@0: 
michael@0:     // Do what nsEventTargetSH::PreCreate does.
michael@0:     nsCOMPtr<nsIScriptGlobalObject> parent;
michael@0:     DOMEventTargetHelper::GetParentObject(getter_AddRefs(parent));
michael@0: 
michael@0:     return parent ? parent->GetGlobalJSObject() : nullptr;
michael@0:   }
michael@0: 
michael@0: #ifdef DEBUG
michael@0:   void AssertIsRooted() const;
michael@0: #else
michael@0:   inline void AssertIsRooted() const
michael@0:   {
michael@0:   }
michael@0: #endif
michael@0: 
michael@0: protected:
michael@0:   IDBWrapperCache(DOMEventTargetHelper* aOwner)
michael@0:     : DOMEventTargetHelper(aOwner), mScriptOwner(nullptr)
michael@0:   { }
michael@0:   IDBWrapperCache(nsPIDOMWindow* aOwner)
michael@0:     : DOMEventTargetHelper(aOwner), mScriptOwner(nullptr)
michael@0:   { }
michael@0: 
michael@0:   virtual ~IDBWrapperCache();
michael@0: 
michael@0: private:
michael@0:   JS::Heap<JSObject*> mScriptOwner;
michael@0: };
michael@0: 
michael@0: END_INDEXEDDB_NAMESPACE
michael@0: 
michael@0: #endif // mozilla_dom_indexeddb_idbwrappercache_h__