tor-browser

The Tor Browser
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EventCallbackDebuggerNotification.cpp (2955B)

      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 "EventCallbackDebuggerNotification.h"
      8 
      9 #include "DebuggerNotificationManager.h"
     10 #include "mozilla/CycleCollectedJSContext.h"
     11 #include "mozilla/dom/EventTarget.h"
     12 #include "mozilla/dom/Worker.h"
     13 #include "mozilla/dom/XMLHttpRequestEventTarget.h"
     14 #include "nsIGlobalObject.h"
     15 #include "nsINode.h"
     16 #include "nsQueryObject.h"
     17 
     18 namespace mozilla::dom {
     19 
     20 NS_IMPL_CYCLE_COLLECTION_INHERITED(EventCallbackDebuggerNotification,
     21                                   CallbackDebuggerNotification, mEvent)
     22 
     23 NS_IMPL_ADDREF_INHERITED(EventCallbackDebuggerNotification,
     24                         CallbackDebuggerNotification)
     25 NS_IMPL_RELEASE_INHERITED(EventCallbackDebuggerNotification,
     26                          CallbackDebuggerNotification)
     27 
     28 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(EventCallbackDebuggerNotification)
     29 NS_INTERFACE_MAP_END_INHERITING(CallbackDebuggerNotification)
     30 
     31 JSObject* EventCallbackDebuggerNotification::WrapObject(
     32    JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
     33  return EventCallbackDebuggerNotification_Binding::Wrap(aCx, this,
     34                                                         aGivenProto);
     35 }
     36 
     37 already_AddRefed<DebuggerNotification>
     38 EventCallbackDebuggerNotification::CloneInto(nsIGlobalObject* aNewOwner) const {
     39  RefPtr<EventCallbackDebuggerNotification> notification(
     40      new EventCallbackDebuggerNotification(mDebuggeeGlobal, mType, mEvent,
     41                                            mTargetType, mPhase, aNewOwner));
     42  return notification.forget();
     43 }
     44 
     45 void EventCallbackDebuggerNotificationGuard::DispatchToManager(
     46    const RefPtr<DebuggerNotificationManager>& aManager,
     47    CallbackDebuggerNotificationPhase aPhase) {
     48  if (!mEventTarget) {
     49    MOZ_ASSERT(false, "target should exist");
     50    return;
     51  }
     52 
     53  Maybe<EventCallbackDebuggerNotificationType> notificationType(
     54      mEventTarget->GetDebuggerNotificationType());
     55 
     56  if (notificationType) {
     57 #ifdef MOZ_EXECUTION_TRACING
     58    CycleCollectedJSContext* ccjcx = CycleCollectedJSContext::Get();
     59    if (ccjcx) {
     60      nsAutoString eventType;
     61      mEvent->GetType(eventType);
     62      if (aPhase == CallbackDebuggerNotificationPhase::Pre) {
     63        JS_TracerEnterLabelTwoByte(ccjcx->Context(), eventType.get());
     64      } else {
     65        JS_TracerLeaveLabelTwoByte(ccjcx->Context(), eventType.get());
     66      }
     67    }
     68 #endif
     69    if (MOZ_UNLIKELY(aManager)) {
     70      aManager->Dispatch<EventCallbackDebuggerNotification>(
     71          DebuggerNotificationType::DomEvent,
     72          // The DOM event will always be live during event dispatch.
     73          MOZ_KnownLive(mEvent), *notificationType, aPhase);
     74    }
     75  }
     76 }
     77 
     78 }  // namespace mozilla::dom