dom/base/MessageListenerManager.cpp

   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
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #include "mozilla/dom/MessageListenerManager.h"
   8 #include "mozilla/dom/MessageBroadcaster.h"
   9
  10 namespace mozilla::dom {
  11
  12 MessageListenerManager::MessageListenerManager(
  13     ipc::MessageManagerCallback* aCallback, MessageBroadcaster* aParentManager,
  14     ipc::MessageManagerFlags aFlags)
  15     : nsFrameMessageManager(aCallback, aFlags),
  16       mParentManager(aParentManager) {}
  17
  18 MessageListenerManager::~MessageListenerManager() = default;
  19
  20 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MessageListenerManager)
  21   NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
  22 NS_INTERFACE_MAP_END_INHERITING(nsFrameMessageManager)
  23 NS_IMPL_ADDREF_INHERITED(MessageListenerManager, nsFrameMessageManager)
  24 NS_IMPL_RELEASE_INHERITED(MessageListenerManager, nsFrameMessageManager)
  25
  26 NS_IMPL_CYCLE_COLLECTION_CLASS(MessageListenerManager)
  27 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(MessageListenerManager,
  28                                                   nsFrameMessageManager)
  29   NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mParentManager)
  30 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
  31 NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(MessageListenerManager,
  32                                                nsFrameMessageManager)
  33   NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER
  34 NS_IMPL_CYCLE_COLLECTION_TRACE_END
  35 NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(MessageListenerManager,
  36                                                 nsFrameMessageManager)
  37   NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
  38   NS_IMPL_CYCLE_COLLECTION_UNLINK(mParentManager)
  39 NS_IMPL_CYCLE_COLLECTION_UNLINK_END
  40
  41 void MessageListenerManager::ClearParentManager(bool aRemove) {
  42   if (aRemove && mParentManager) {
  43     mParentManager->RemoveChildManager(this);
  44   }
  45   mParentManager = nullptr;
  46 }
  47
  48 }  // namespace mozilla::dom