149 lines
4.3 KiB
C++
149 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "CustomEvent.h"
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#include "mozilla/dom/CustomEventBinding.h"
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#include "mozilla/dom/BindingUtils.h"
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#include "nsContentUtils.h"
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#include "nsIXPConnect.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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CustomEvent::CustomEvent(mozilla::dom::EventTarget* aOwner,
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nsPresContext* aPresContext,
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mozilla::WidgetEvent* aEvent)
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: Event(aOwner, aPresContext, aEvent)
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, mDetail(JS::NullValue())
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{
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mozilla::HoldJSObjects(this);
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}
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CustomEvent::~CustomEvent()
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{
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mozilla::DropJSObjects(this);
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(CustomEvent)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(CustomEvent, Event)
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tmp->mDetail.setUndefined();
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mozilla::DropJSObjects(this);
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(CustomEvent, Event)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(CustomEvent, Event)
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NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mDetail)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_IMPL_ADDREF_INHERITED(CustomEvent, Event)
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NS_IMPL_RELEASE_INHERITED(CustomEvent, Event)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(CustomEvent)
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NS_INTERFACE_MAP_ENTRY(nsIDOMCustomEvent)
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NS_INTERFACE_MAP_END_INHERITING(Event)
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already_AddRefed<CustomEvent>
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CustomEvent::Constructor(const GlobalObject& aGlobal,
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const nsAString& aType,
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const CustomEventInit& aParam,
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ErrorResult& aRv)
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{
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nsCOMPtr<mozilla::dom::EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
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RefPtr<CustomEvent> e = new CustomEvent(t, nullptr, nullptr);
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bool trusted = e->Init(t);
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JS::Rooted<JS::Value> detail(aGlobal.Context(), aParam.mDetail);
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e->InitCustomEvent(aGlobal.Context(), aType, aParam.mBubbles, aParam.mCancelable, detail, aRv);
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e->SetTrusted(trusted);
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e->SetComposed(aParam.mComposed);
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return e.forget();
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}
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JSObject*
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CustomEvent::WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return mozilla::dom::CustomEventBinding::Wrap(aCx, this, aGivenProto);
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}
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NS_IMETHODIMP
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CustomEvent::InitCustomEvent(const nsAString& aType,
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bool aCanBubble,
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bool aCancelable,
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nsIVariant* aDetail)
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{
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NS_ENSURE_TRUE(!mEvent->mFlags.mIsBeingDispatched, NS_OK);
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AutoJSAPI jsapi;
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NS_ENSURE_STATE(jsapi.Init(GetParentObject()));
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JSContext* cx = jsapi.cx();
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JS::Rooted<JS::Value> detail(cx);
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if (!aDetail) {
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detail = JS::NullValue();
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} else if (NS_WARN_IF(!VariantToJsval(cx, aDetail, &detail))) {
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JS_ClearPendingException(cx);
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return NS_ERROR_FAILURE;
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}
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Event::InitEvent(aType, aCanBubble, aCancelable);
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mDetail = detail;
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return NS_OK;
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}
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void
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CustomEvent::InitCustomEvent(JSContext* aCx,
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const nsAString& aType,
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bool aCanBubble,
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bool aCancelable,
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JS::Handle<JS::Value> aDetail,
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ErrorResult& aRv)
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{
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NS_ENSURE_TRUE_VOID(!mEvent->mFlags.mIsBeingDispatched);
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Event::InitEvent(aType, aCanBubble, aCancelable);
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mDetail = aDetail;
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}
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NS_IMETHODIMP
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CustomEvent::GetDetail(nsIVariant** aDetail)
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{
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if (mDetail.isNull()) {
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*aDetail = nullptr;
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return NS_OK;
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}
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AutoJSAPI jsapi;
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NS_ENSURE_STATE(jsapi.Init(GetParentObject()));
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JSContext* cx = jsapi.cx();
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JS::Rooted<JS::Value> detail(cx, mDetail);
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nsIXPConnect* xpc = nsContentUtils::XPConnect();
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if (NS_WARN_IF(!xpc)) {
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return NS_ERROR_FAILURE;
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}
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return xpc->JSToVariant(cx, detail, aDetail);
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}
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void
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CustomEvent::GetDetail(JSContext* aCx,
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JS::MutableHandle<JS::Value> aRetval)
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{
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aRetval.set(mDetail);
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}
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already_AddRefed<CustomEvent>
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NS_NewDOMCustomEvent(EventTarget* aOwner,
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nsPresContext* aPresContext,
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mozilla::WidgetEvent* aEvent)
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{
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RefPtr<CustomEvent> it =
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new CustomEvent(aOwner, aPresContext, aEvent);
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return it.forget();
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}
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