gecko-dev/dom/events/CustomEvent.cpp

85 строки
3.0 KiB
C++

/* -*- 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(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();
}