Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim: set ts=8 sts=2 et sw=2 tw=80: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
       5             :  * You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #include "IDBWrapperCache.h"
       8             : 
       9             : #include "mozilla/HoldDropJSObjects.h"
      10             : #include "nsCOMPtr.h"
      11             : #include "nsIScriptGlobalObject.h"
      12             : #include "nsPIDOMWindow.h"
      13             : 
      14             : namespace mozilla {
      15             : namespace dom {
      16             : 
      17             : NS_IMPL_CYCLE_COLLECTION_CLASS(IDBWrapperCache)
      18             : 
      19           0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(IDBWrapperCache,
      20             :                                                   DOMEventTargetHelper)
      21           0 : NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
      22             : 
      23           0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(IDBWrapperCache,
      24             :                                                 DOMEventTargetHelper)
      25           0 :   if (tmp->mScriptOwner) {
      26           0 :     tmp->mScriptOwner = nullptr;
      27           0 :     mozilla::DropJSObjects(tmp);
      28             :   }
      29           0 : NS_IMPL_CYCLE_COLLECTION_UNLINK_END
      30             : 
      31           0 : NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(IDBWrapperCache,
      32             :                                                DOMEventTargetHelper)
      33             :   // Don't need NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER because
      34             :   // DOMEventTargetHelper does it for us.
      35           0 :   NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mScriptOwner)
      36           0 : NS_IMPL_CYCLE_COLLECTION_TRACE_END
      37             : 
      38           0 : NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(IDBWrapperCache)
      39           0 : NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
      40             : 
      41           0 : NS_IMPL_ADDREF_INHERITED(IDBWrapperCache, DOMEventTargetHelper)
      42           0 : NS_IMPL_RELEASE_INHERITED(IDBWrapperCache, DOMEventTargetHelper)
      43             : 
      44           0 : IDBWrapperCache::IDBWrapperCache(DOMEventTargetHelper* aOwner)
      45           0 :   : DOMEventTargetHelper(aOwner), mScriptOwner(nullptr)
      46           0 : { }
      47             : 
      48           0 : IDBWrapperCache::IDBWrapperCache(nsPIDOMWindowInner* aOwner)
      49           0 :   : DOMEventTargetHelper(aOwner), mScriptOwner(nullptr)
      50           0 : { }
      51             : 
      52           0 : IDBWrapperCache::~IDBWrapperCache()
      53             : {
      54           0 :   mScriptOwner = nullptr;
      55           0 :   ReleaseWrapper(this);
      56           0 :   mozilla::DropJSObjects(this);
      57           0 : }
      58             : 
      59             : void
      60           0 : IDBWrapperCache::SetScriptOwner(JSObject* aScriptOwner)
      61             : {
      62           0 :   MOZ_ASSERT(aScriptOwner);
      63             : 
      64           0 :   mScriptOwner = aScriptOwner;
      65           0 :   mozilla::HoldJSObjects(this);
      66           0 : }
      67             : 
      68             : #ifdef DEBUG
      69             : void
      70           0 : IDBWrapperCache::AssertIsRooted() const
      71             : {
      72           0 :   MOZ_ASSERT(IsJSHolder(const_cast<IDBWrapperCache*>(this)),
      73             :              "Why aren't we rooted?!");
      74           0 : }
      75             : #endif
      76             : 
      77             : } // namespace dom
      78             : } // namespace mozilla