dom/debugger/DebuggerNotificationManager.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 "DebuggerNotificationManager.h"
   8
   9 #include "nsIGlobalObject.h"
  10
  11 namespace mozilla::dom {
  12
  13 NS_IMPL_CYCLE_COLLECTION(DebuggerNotificationManager, mDebuggeeGlobal,
  14                          mNotificationObservers)
  15
  16 NS_IMPL_CYCLE_COLLECTING_ADDREF(DebuggerNotificationManager)
  17 NS_IMPL_CYCLE_COLLECTING_RELEASE(DebuggerNotificationManager)
  18
  19 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DebuggerNotificationManager)
  20   NS_INTERFACE_MAP_ENTRY(nsISupports)
  21 NS_INTERFACE_MAP_END
  22
  23 NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(DebuggerNotificationManager)
  24 NS_IMPL_CYCLE_COLLECTION_TRACE_END
  25
  26 bool DebuggerNotificationManager::Attach(
  27     DebuggerNotificationObserver* aObserver) {
  28   RefPtr<DebuggerNotificationObserver> ptr(aObserver);
  29
  30   if (mNotificationObservers.Contains(ptr)) {
  31     return false;
  32   }
  33
  34   mNotificationObservers.AppendElement(ptr);
  35   return true;
  36 }
  37 bool DebuggerNotificationManager::Detach(
  38     DebuggerNotificationObserver* aObserver) {
  39   RefPtr<DebuggerNotificationObserver> ptr(aObserver);
  40
  41   return mNotificationObservers.RemoveElement(ptr);
  42 }
  43
  44 bool DebuggerNotificationManager::HasListeners() {
  45   const auto [begin, end] = mNotificationObservers.NonObservingRange();
  46   return std::any_of(begin, end, [](const auto& observer) {
  47     return observer->HasListeners();
  48   });
  49 }
  50
  51 void DebuggerNotificationManager::NotifyListeners(
  52     DebuggerNotification* aNotification) {
  53   for (RefPtr<DebuggerNotificationObserver> observer :
  54        mNotificationObservers.ForwardRange()) {
  55     observer->NotifyListeners(aNotification);
  56   }
  57 }
  58
  59 }  // namespace mozilla::dom