1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/events/MessageEvent.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,210 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "mozilla/dom/MessageEvent.h"
1.10 +#include "mozilla/dom/MessageEventBinding.h"
1.11 +#include "mozilla/dom/MessagePort.h"
1.12 +#include "mozilla/dom/MessagePortBinding.h"
1.13 +#include "mozilla/dom/MessagePortList.h"
1.14 +#include "mozilla/dom/UnionTypes.h"
1.15 +
1.16 +#include "mozilla/HoldDropJSObjects.h"
1.17 +#include "jsapi.h"
1.18 +
1.19 +namespace mozilla {
1.20 +namespace dom {
1.21 +
1.22 +NS_IMPL_CYCLE_COLLECTION_CLASS(MessageEvent)
1.23 +
1.24 +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(MessageEvent, Event)
1.25 + tmp->mData = JSVAL_VOID;
1.26 + NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindowSource)
1.27 + NS_IMPL_CYCLE_COLLECTION_UNLINK(mPortSource)
1.28 + NS_IMPL_CYCLE_COLLECTION_UNLINK(mPorts)
1.29 +NS_IMPL_CYCLE_COLLECTION_UNLINK_END
1.30 +
1.31 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(MessageEvent, Event)
1.32 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindowSource)
1.33 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPortSource)
1.34 + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPorts)
1.35 +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
1.36 +
1.37 +NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(MessageEvent, Event)
1.38 + NS_IMPL_CYCLE_COLLECTION_TRACE_JSVAL_MEMBER_CALLBACK(mData)
1.39 +NS_IMPL_CYCLE_COLLECTION_TRACE_END
1.40 +
1.41 +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(MessageEvent)
1.42 + NS_INTERFACE_MAP_ENTRY(nsIDOMMessageEvent)
1.43 +NS_INTERFACE_MAP_END_INHERITING(Event)
1.44 +
1.45 +NS_IMPL_ADDREF_INHERITED(MessageEvent, Event)
1.46 +NS_IMPL_RELEASE_INHERITED(MessageEvent, Event)
1.47 +
1.48 +MessageEvent::MessageEvent(EventTarget* aOwner,
1.49 + nsPresContext* aPresContext,
1.50 + WidgetEvent* aEvent)
1.51 + : Event(aOwner, aPresContext, aEvent)
1.52 + , mData(JSVAL_VOID)
1.53 +{
1.54 +}
1.55 +
1.56 +MessageEvent::~MessageEvent()
1.57 +{
1.58 + mData = JSVAL_VOID;
1.59 + DropJSObjects(this);
1.60 +}
1.61 +
1.62 +JSObject*
1.63 +MessageEvent::WrapObject(JSContext* aCx)
1.64 +{
1.65 + return mozilla::dom::MessageEventBinding::Wrap(aCx, this);
1.66 +}
1.67 +
1.68 +NS_IMETHODIMP
1.69 +MessageEvent::GetData(JSContext* aCx, JS::MutableHandle<JS::Value> aData)
1.70 +{
1.71 + ErrorResult rv;
1.72 + GetData(aCx, aData, rv);
1.73 + return rv.ErrorCode();
1.74 +}
1.75 +
1.76 +void
1.77 +MessageEvent::GetData(JSContext* aCx, JS::MutableHandle<JS::Value> aData,
1.78 + ErrorResult& aRv)
1.79 +{
1.80 + JS::ExposeValueToActiveJS(mData);
1.81 + aData.set(mData);
1.82 + if (!JS_WrapValue(aCx, aData)) {
1.83 + aRv.Throw(NS_ERROR_FAILURE);
1.84 + }
1.85 +}
1.86 +
1.87 +NS_IMETHODIMP
1.88 +MessageEvent::GetOrigin(nsAString& aOrigin)
1.89 +{
1.90 + aOrigin = mOrigin;
1.91 + return NS_OK;
1.92 +}
1.93 +
1.94 +NS_IMETHODIMP
1.95 +MessageEvent::GetLastEventId(nsAString& aLastEventId)
1.96 +{
1.97 + aLastEventId = mLastEventId;
1.98 + return NS_OK;
1.99 +}
1.100 +
1.101 +NS_IMETHODIMP
1.102 +MessageEvent::GetSource(nsIDOMWindow** aSource)
1.103 +{
1.104 + NS_IF_ADDREF(*aSource = mWindowSource);
1.105 + return NS_OK;
1.106 +}
1.107 +
1.108 +void
1.109 +MessageEvent::GetSource(Nullable<OwningWindowProxyOrMessagePort>& aValue) const
1.110 +{
1.111 + if (mWindowSource) {
1.112 + aValue.SetValue().SetAsWindowProxy() = mWindowSource;
1.113 + } else if (mPortSource) {
1.114 + aValue.SetValue().SetAsMessagePort() = mPortSource;
1.115 + }
1.116 +}
1.117 +
1.118 +/* static */ already_AddRefed<MessageEvent>
1.119 +MessageEvent::Constructor(const GlobalObject& aGlobal,
1.120 + JSContext* aCx, const nsAString& aType,
1.121 + const MessageEventInit& aParam,
1.122 + ErrorResult& aRv)
1.123 +{
1.124 + nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports());
1.125 + nsRefPtr<MessageEvent> event = new MessageEvent(t, nullptr, nullptr);
1.126 +
1.127 + aRv = event->InitEvent(aType, aParam.mBubbles, aParam.mCancelable);
1.128 + if (aRv.Failed()) {
1.129 + return nullptr;
1.130 + }
1.131 +
1.132 + bool trusted = event->Init(t);
1.133 + event->SetTrusted(trusted);
1.134 +
1.135 + event->mData = aParam.mData;
1.136 +
1.137 + mozilla::HoldJSObjects(event.get());
1.138 +
1.139 + if (aParam.mOrigin.WasPassed()) {
1.140 + event->mOrigin = aParam.mOrigin.Value();
1.141 + }
1.142 +
1.143 + if (aParam.mLastEventId.WasPassed()) {
1.144 + event->mLastEventId = aParam.mLastEventId.Value();
1.145 + }
1.146 +
1.147 + if (!aParam.mSource.IsNull()) {
1.148 + if (aParam.mSource.Value().IsWindowProxy()) {
1.149 + event->mWindowSource = aParam.mSource.Value().GetAsWindowProxy();
1.150 + } else {
1.151 + event->mPortSource = aParam.mSource.Value().GetAsMessagePort();
1.152 + }
1.153 +
1.154 + MOZ_ASSERT(event->mWindowSource || event->mPortSource);
1.155 + }
1.156 +
1.157 + if (aParam.mPorts.WasPassed() && !aParam.mPorts.Value().IsNull()) {
1.158 + nsTArray<nsRefPtr<MessagePortBase>> ports;
1.159 + for (uint32_t i = 0, len = aParam.mPorts.Value().Value().Length(); i < len; ++i) {
1.160 + ports.AppendElement(aParam.mPorts.Value().Value()[i].get());
1.161 + }
1.162 +
1.163 + event->mPorts = new MessagePortList(static_cast<EventBase*>(event), ports);
1.164 + }
1.165 +
1.166 + return event.forget();
1.167 +}
1.168 +
1.169 +NS_IMETHODIMP
1.170 +MessageEvent::InitMessageEvent(const nsAString& aType,
1.171 + bool aCanBubble,
1.172 + bool aCancelable,
1.173 + JS::Handle<JS::Value> aData,
1.174 + const nsAString& aOrigin,
1.175 + const nsAString& aLastEventId,
1.176 + nsIDOMWindow* aSource)
1.177 +{
1.178 + nsresult rv = Event::InitEvent(aType, aCanBubble, aCancelable);
1.179 + NS_ENSURE_SUCCESS(rv, rv);
1.180 +
1.181 + mData = aData;
1.182 + mozilla::HoldJSObjects(this);
1.183 + mOrigin = aOrigin;
1.184 + mLastEventId = aLastEventId;
1.185 + mWindowSource = aSource;
1.186 +
1.187 + return NS_OK;
1.188 +}
1.189 +
1.190 +void
1.191 +MessageEvent::SetPorts(MessagePortList* aPorts)
1.192 +{
1.193 + MOZ_ASSERT(!mPorts && aPorts);
1.194 + mPorts = aPorts;
1.195 +}
1.196 +
1.197 +} // namespace dom
1.198 +} // namespace mozilla
1.199 +
1.200 +using namespace mozilla;
1.201 +using namespace mozilla::dom;
1.202 +
1.203 +nsresult
1.204 +NS_NewDOMMessageEvent(nsIDOMEvent** aInstancePtrResult,
1.205 + EventTarget* aOwner,
1.206 + nsPresContext* aPresContext,
1.207 + WidgetEvent* aEvent)
1.208 +{
1.209 + MessageEvent* it = new MessageEvent(aOwner, aPresContext, aEvent);
1.210 + NS_ADDREF(it);
1.211 + *aInstancePtrResult = static_cast<Event*>(it);
1.212 + return NS_OK;
1.213 +}
