/* -*- 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 "nsContentUtils.h" #include "nsIXPConnect.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) tmp->mDetail.setUndefined(); mozilla::DropJSObjects(this); 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_INHERITED(CustomEvent) NS_INTERFACE_MAP_ENTRY(nsIDOMCustomEvent) NS_INTERFACE_MAP_END_INHERITING(Event) already_AddRefed<CustomEvent> CustomEvent::Constructor(const GlobalObject& aGlobal, const nsAString& aType, const CustomEventInit& aParam, ErrorResult& aRv) { 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, aRv); e->SetTrusted(trusted); e->SetComposed(aParam.mComposed); return e.forget(); } JSObject* CustomEvent::WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) { return mozilla::dom::CustomEventBinding::Wrap(aCx, this, aGivenProto); } NS_IMETHODIMP CustomEvent::InitCustomEvent(const nsAString& aType, bool aCanBubble, bool aCancelable, nsIVariant* aDetail) { NS_ENSURE_TRUE(!mEvent->mFlags.mIsBeingDispatched, NS_OK); AutoJSAPI jsapi; NS_ENSURE_STATE(jsapi.Init(GetParentObject())); JSContext* cx = jsapi.cx(); JS::Rooted<JS::Value> detail(cx); if (!aDetail) { detail = JS::NullValue(); } else if (NS_WARN_IF(!VariantToJsval(cx, aDetail, &detail))) { JS_ClearPendingException(cx); return NS_ERROR_FAILURE; } Event::InitEvent(aType, aCanBubble, aCancelable); mDetail = detail; return NS_OK; } void CustomEvent::InitCustomEvent(JSContext* aCx, const nsAString& aType, bool aCanBubble, bool aCancelable, JS::Handle<JS::Value> aDetail, ErrorResult& aRv) { NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched); Event::InitEvent(aType, aCanBubble, aCancelable); mDetail = aDetail; } NS_IMETHODIMP CustomEvent::GetDetail(nsIVariant** aDetail) { if (mDetail.isNull()) { *aDetail = nullptr; return NS_OK; } AutoJSAPI jsapi; NS_ENSURE_STATE(jsapi.Init(GetParentObject())); JSContext* cx = jsapi.cx(); JS::Rooted<JS::Value> detail(cx, mDetail); nsIXPConnect* xpc = nsContentUtils::XPConnect(); if (NS_WARN_IF(!xpc)) { return NS_ERROR_FAILURE; } return xpc->JSToVariant(cx, detail, 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(); }