dom/events/InvokeEvent.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/InvokeEvent.h"
   8 #include "mozilla/dom/EventTarget.h"
   9 #include "mozilla/dom/InvokeEventBinding.h"
  10 #include "nsContentUtils.h"
  11
  12 namespace mozilla::dom {
  13 NS_IMPL_CYCLE_COLLECTION_INHERITED(InvokeEvent, Event, mInvoker)
  14
  15 NS_IMPL_ADDREF_INHERITED(InvokeEvent, Event)
  16 NS_IMPL_RELEASE_INHERITED(InvokeEvent, Event)
  17
  18 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(InvokeEvent)
  19 NS_INTERFACE_MAP_END_INHERITING(Event)
  20
  21 JSObject* InvokeEvent::WrapObjectInternal(JSContext* aCx,
  22                                           JS::Handle<JSObject*> aGivenProto) {
  23   return InvokeEvent_Binding::Wrap(aCx, this, aGivenProto);
  24 }
  25
  26 already_AddRefed<InvokeEvent> InvokeEvent::Constructor(
  27     mozilla::dom::EventTarget* aOwner, const nsAString& aType,
  28     const InvokeEventInit& aEventInitDict) {
  29   RefPtr<InvokeEvent> e = new InvokeEvent(aOwner);
  30   bool trusted = e->Init(aOwner);
  31   e->InitEvent(aType, aEventInitDict.mBubbles, aEventInitDict.mCancelable);
  32   e->mInvoker = aEventInitDict.mInvoker;
  33   e->mAction = aEventInitDict.mAction;
  34   e->SetTrusted(trusted);
  35   e->SetComposed(aEventInitDict.mComposed);
  36   return e.forget();
  37 }
  38
  39 already_AddRefed<InvokeEvent> InvokeEvent::Constructor(
  40     const GlobalObject& aGlobal, const nsAString& aType,
  41     const InvokeEventInit& aEventInitDict) {
  42   nsCOMPtr<mozilla::dom::EventTarget> owner =
  43       do_QueryInterface(aGlobal.GetAsSupports());
  44   return Constructor(owner, aType, aEventInitDict);
  45 }
  46
  47 Element* InvokeEvent::GetInvoker() {
  48   EventTarget* currentTarget = GetCurrentTarget();
  49   if (currentTarget) {
  50     nsINode* currentTargetNode = currentTarget->GetAsNode();
  51     if (!currentTargetNode) {
  52       return nullptr;
  53     }
  54     nsINode* retargeted = nsContentUtils::Retarget(
  55         static_cast<nsINode*>(mInvoker), currentTargetNode);
  56     return retargeted ? retargeted->AsElement() : nullptr;
  57   }
  58   MOZ_ASSERT(!mEvent->mFlags.mIsBeingDispatched);
  59   return mInvoker;
  60 }
  61
  62 }  // namespace mozilla::dom