CustomEvent.cpp - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "CustomEvent.h"

#include "mozilla/dom/CustomEventBinding.h"

#include "mozilla/dom/BindingUtils.h"

#include "mozilla/HoldDropJSObjects.h"

#include "nsContentUtils.h"

using namespace mozilla;

using namespace mozilla::dom;

CustomEvent::CustomEvent(mozilla::dom::EventTarget* aOwner,

                         nsPresContext* aPresContext,

                         mozilla::WidgetEvent* aEvent)

    : Event(aOwner, aPresContext, aEvent), mDetail(JS::NullValue()) {

  mozilla::HoldJSObjects(this);

CustomEvent::~CustomEvent() { mozilla::DropJSObjects(this); }

NS_IMPL_CYCLE_COLLECTION_CLASS(CustomEvent)

NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(CustomEvent, Event)

  mozilla::DropJSObjects(tmp);

NS_IMPL_CYCLE_COLLECTION_UNLINK_END

NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(CustomEvent, Event)

NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END

NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(CustomEvent, Event)

  NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mDetail)

NS_IMPL_CYCLE_COLLECTION_TRACE_END

NS_IMPL_ADDREF_INHERITED(CustomEvent, Event)

NS_IMPL_RELEASE_INHERITED(CustomEvent, Event)

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CustomEvent)

NS_INTERFACE_MAP_END_INHERITING(Event)

already_AddRefed<CustomEvent> CustomEvent::Constructor(

    const GlobalObject& aGlobal, const nsAString& aType,

    const CustomEventInit& aParam) {

  nsCOMPtr<mozilla::dom::EventTarget> t =

      do_QueryInterface(aGlobal.GetAsSupports());

  RefPtr<CustomEvent> e = new CustomEvent(t, nullptr, nullptr);

  bool trusted = e->Init(t);

  JS::Rooted<JS::Value> detail(aGlobal.Context(), aParam.mDetail);

  e->InitCustomEvent(aGlobal.Context(), aType, aParam.mBubbles,

                     aParam.mCancelable, detail);

  e->SetTrusted(trusted);

  e->SetComposed(aParam.mComposed);

  return e.forget();

JSObject* CustomEvent::WrapObjectInternal(JSContext* aCx,

                                          JS::Handle<JSObject*> aGivenProto) {

  return mozilla::dom::CustomEvent_Binding::Wrap(aCx, this, aGivenProto);

void CustomEvent::InitCustomEvent(JSContext* aCx, const nsAString& aType,

                                  bool aCanBubble, bool aCancelable,

                                  JS::Handle<JS::Value> aDetail) {

  NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched);

  Event::InitEvent(aType, aCanBubble, aCancelable);

  mDetail = aDetail;

void CustomEvent::GetDetail(JSContext* aCx,

                            JS::MutableHandle<JS::Value> aRetval) {

  aRetval.set(mDetail);

already_AddRefed<CustomEvent> NS_NewDOMCustomEvent(

    EventTarget* aOwner, nsPresContext* aPresContext,

    mozilla::WidgetEvent* aEvent) {

  RefPtr<CustomEvent> it = new CustomEvent(aOwner, aPresContext, aEvent);

  return it.forget();