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comparison: dom/events/MessageEvent.cpp
dom/events/MessageEvent.cpp
- changeset 0
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "mozilla/dom/MessageEvent.h" | |
| 7 #include "mozilla/dom/MessageEventBinding.h" | |
| 8 #include "mozilla/dom/MessagePort.h" | |
| 9 #include "mozilla/dom/MessagePortBinding.h" | |
| 10 #include "mozilla/dom/MessagePortList.h" | |
| 11 #include "mozilla/dom/UnionTypes.h" | |
| 12 | |
| 13 #include "mozilla/HoldDropJSObjects.h" | |
| 14 #include "jsapi.h" | |
| 15 | |
| 16 namespace mozilla { | |
| 17 namespace dom { | |
| 18 | |
| 19 NS_IMPL_CYCLE_COLLECTION_CLASS(MessageEvent) | |
| 20 | |
| 21 NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(MessageEvent, Event) | |
| 22 tmp->mData = JSVAL_VOID; | |
| 23 NS_IMPL_CYCLE_COLLECTION_UNLINK(mWindowSource) | |
| 24 NS_IMPL_CYCLE_COLLECTION_UNLINK(mPortSource) | |
| 25 NS_IMPL_CYCLE_COLLECTION_UNLINK(mPorts) | |
| 26 NS_IMPL_CYCLE_COLLECTION_UNLINK_END | |
| 27 | |
| 28 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(MessageEvent, Event) | |
| 29 NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mWindowSource) | |
| 30 NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPortSource) | |
| 31 NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPorts) | |
| 32 NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END | |
| 33 | |
| 34 NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(MessageEvent, Event) | |
| 35 NS_IMPL_CYCLE_COLLECTION_TRACE_JSVAL_MEMBER_CALLBACK(mData) | |
| 36 NS_IMPL_CYCLE_COLLECTION_TRACE_END | |
| 37 | |
| 38 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(MessageEvent) | |
| 39 NS_INTERFACE_MAP_ENTRY(nsIDOMMessageEvent) | |
| 40 NS_INTERFACE_MAP_END_INHERITING(Event) | |
| 41 | |
| 42 NS_IMPL_ADDREF_INHERITED(MessageEvent, Event) | |
| 43 NS_IMPL_RELEASE_INHERITED(MessageEvent, Event) | |
| 44 | |
| 45 MessageEvent::MessageEvent(EventTarget* aOwner, | |
| 46 nsPresContext* aPresContext, | |
| 47 WidgetEvent* aEvent) | |
| 48 : Event(aOwner, aPresContext, aEvent) | |
| 49 , mData(JSVAL_VOID) | |
| 50 { | |
| 51 } | |
| 52 | |
| 53 MessageEvent::~MessageEvent() | |
| 54 { | |
| 55 mData = JSVAL_VOID; | |
| 56 DropJSObjects(this); | |
| 57 } | |
| 58 | |
| 59 JSObject* | |
| 60 MessageEvent::WrapObject(JSContext* aCx) | |
| 61 { | |
| 62 return mozilla::dom::MessageEventBinding::Wrap(aCx, this); | |
| 63 } | |
| 64 | |
| 65 NS_IMETHODIMP | |
| 66 MessageEvent::GetData(JSContext* aCx, JS::MutableHandle<JS::Value> aData) | |
| 67 { | |
| 68 ErrorResult rv; | |
| 69 GetData(aCx, aData, rv); | |
| 70 return rv.ErrorCode(); | |
| 71 } | |
| 72 | |
| 73 void | |
| 74 MessageEvent::GetData(JSContext* aCx, JS::MutableHandle<JS::Value> aData, | |
| 75 ErrorResult& aRv) | |
| 76 { | |
| 77 JS::ExposeValueToActiveJS(mData); | |
| 78 aData.set(mData); | |
| 79 if (!JS_WrapValue(aCx, aData)) { | |
| 80 aRv.Throw(NS_ERROR_FAILURE); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 NS_IMETHODIMP | |
| 85 MessageEvent::GetOrigin(nsAString& aOrigin) | |
| 86 { | |
| 87 aOrigin = mOrigin; | |
| 88 return NS_OK; | |
| 89 } | |
| 90 | |
| 91 NS_IMETHODIMP | |
| 92 MessageEvent::GetLastEventId(nsAString& aLastEventId) | |
| 93 { | |
| 94 aLastEventId = mLastEventId; | |
| 95 return NS_OK; | |
| 96 } | |
| 97 | |
| 98 NS_IMETHODIMP | |
| 99 MessageEvent::GetSource(nsIDOMWindow** aSource) | |
| 100 { | |
| 101 NS_IF_ADDREF(*aSource = mWindowSource); | |
| 102 return NS_OK; | |
| 103 } | |
| 104 | |
| 105 void | |
| 106 MessageEvent::GetSource(Nullable<OwningWindowProxyOrMessagePort>& aValue) const | |
| 107 { | |
| 108 if (mWindowSource) { | |
| 109 aValue.SetValue().SetAsWindowProxy() = mWindowSource; | |
| 110 } else if (mPortSource) { | |
| 111 aValue.SetValue().SetAsMessagePort() = mPortSource; | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 /* static */ already_AddRefed<MessageEvent> | |
| 116 MessageEvent::Constructor(const GlobalObject& aGlobal, | |
| 117 JSContext* aCx, const nsAString& aType, | |
| 118 const MessageEventInit& aParam, | |
| 119 ErrorResult& aRv) | |
| 120 { | |
| 121 nsCOMPtr<EventTarget> t = do_QueryInterface(aGlobal.GetAsSupports()); | |
| 122 nsRefPtr<MessageEvent> event = new MessageEvent(t, nullptr, nullptr); | |
| 123 | |
| 124 aRv = event->InitEvent(aType, aParam.mBubbles, aParam.mCancelable); | |
| 125 if (aRv.Failed()) { | |
| 126 return nullptr; | |
| 127 } | |
| 128 | |
| 129 bool trusted = event->Init(t); | |
| 130 event->SetTrusted(trusted); | |
| 131 | |
| 132 event->mData = aParam.mData; | |
| 133 | |
| 134 mozilla::HoldJSObjects(event.get()); | |
| 135 | |
| 136 if (aParam.mOrigin.WasPassed()) { | |
| 137 event->mOrigin = aParam.mOrigin.Value(); | |
| 138 } | |
| 139 | |
| 140 if (aParam.mLastEventId.WasPassed()) { | |
| 141 event->mLastEventId = aParam.mLastEventId.Value(); | |
| 142 } | |
| 143 | |
| 144 if (!aParam.mSource.IsNull()) { | |
| 145 if (aParam.mSource.Value().IsWindowProxy()) { | |
| 146 event->mWindowSource = aParam.mSource.Value().GetAsWindowProxy(); | |
| 147 } else { | |
| 148 event->mPortSource = aParam.mSource.Value().GetAsMessagePort(); | |
| 149 } | |
| 150 | |
| 151 MOZ_ASSERT(event->mWindowSource || event->mPortSource); | |
| 152 } | |
| 153 | |
| 154 if (aParam.mPorts.WasPassed() && !aParam.mPorts.Value().IsNull()) { | |
| 155 nsTArray<nsRefPtr<MessagePortBase>> ports; | |
| 156 for (uint32_t i = 0, len = aParam.mPorts.Value().Value().Length(); i < len; ++i) { | |
| 157 ports.AppendElement(aParam.mPorts.Value().Value()[i].get()); | |
| 158 } | |
| 159 | |
| 160 event->mPorts = new MessagePortList(static_cast<EventBase*>(event), ports); | |
| 161 } | |
| 162 | |
| 163 return event.forget(); | |
| 164 } | |
| 165 | |
| 166 NS_IMETHODIMP | |
| 167 MessageEvent::InitMessageEvent(const nsAString& aType, | |
| 168 bool aCanBubble, | |
| 169 bool aCancelable, | |
| 170 JS::Handle<JS::Value> aData, | |
| 171 const nsAString& aOrigin, | |
| 172 const nsAString& aLastEventId, | |
| 173 nsIDOMWindow* aSource) | |
| 174 { | |
| 175 nsresult rv = Event::InitEvent(aType, aCanBubble, aCancelable); | |
| 176 NS_ENSURE_SUCCESS(rv, rv); | |
| 177 | |
| 178 mData = aData; | |
| 179 mozilla::HoldJSObjects(this); | |
| 180 mOrigin = aOrigin; | |
| 181 mLastEventId = aLastEventId; | |
| 182 mWindowSource = aSource; | |
| 183 | |
| 184 return NS_OK; | |
| 185 } | |
| 186 | |
| 187 void | |
| 188 MessageEvent::SetPorts(MessagePortList* aPorts) | |
| 189 { | |
| 190 MOZ_ASSERT(!mPorts && aPorts); | |
| 191 mPorts = aPorts; | |
| 192 } | |
| 193 | |
| 194 } // namespace dom | |
| 195 } // namespace mozilla | |
| 196 | |
| 197 using namespace mozilla; | |
| 198 using namespace mozilla::dom; | |
| 199 | |
| 200 nsresult | |
| 201 NS_NewDOMMessageEvent(nsIDOMEvent** aInstancePtrResult, | |
| 202 EventTarget* aOwner, | |
| 203 nsPresContext* aPresContext, | |
| 204 WidgetEvent* aEvent) | |
| 205 { | |
| 206 MessageEvent* it = new MessageEvent(aOwner, aPresContext, aEvent); | |
| 207 NS_ADDREF(it); | |
| 208 *aInstancePtrResult = static_cast<Event*>(it); | |
| 209 return NS_OK; | |
| 210 } |
