зеркало из https://github.com/mozilla/gecko-dev.git
108 строки
3.5 KiB
C++
108 строки
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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 "mozilla/dom/EventBinding.h"
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#include "mozilla/dom/MIDIMessageEvent.h"
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#include "mozilla/dom/MIDIMessageEventBinding.h"
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#include "js/GCAPI.h"
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#include "jsfriendapi.h"
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#include "mozilla/FloatingPoint.h"
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#include "mozilla/dom/Nullable.h"
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#include "mozilla/dom/PrimitiveConversions.h"
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#include "mozilla/dom/TypedArray.h"
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#include "mozilla/dom/Performance.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_CLASS(MIDIMessageEvent)
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NS_IMPL_ADDREF_INHERITED(MIDIMessageEvent, Event)
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NS_IMPL_RELEASE_INHERITED(MIDIMessageEvent, Event)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(MIDIMessageEvent, Event)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(MIDIMessageEvent, Event)
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NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mData)
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NS_IMPL_CYCLE_COLLECTION_TRACE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(MIDIMessageEvent, Event)
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tmp->mData = nullptr;
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MIDIMessageEvent)
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NS_INTERFACE_MAP_END_INHERITING(Event)
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MIDIMessageEvent::MIDIMessageEvent(mozilla::dom::EventTarget* aOwner)
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: Event(aOwner, nullptr, nullptr) {
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mozilla::HoldJSObjects(this);
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}
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MIDIMessageEvent::~MIDIMessageEvent() {
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mData = nullptr;
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mozilla::DropJSObjects(this);
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}
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JSObject* MIDIMessageEvent::WrapObjectInternal(
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JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
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return MIDIMessageEvent_Binding::Wrap(aCx, this, aGivenProto);
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}
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MIDIMessageEvent* MIDIMessageEvent::AsMIDIMessageEvent() { return this; }
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already_AddRefed<MIDIMessageEvent> MIDIMessageEvent::Constructor(
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EventTarget* aOwner, const class TimeStamp& aReceivedTime,
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const nsTArray<uint8_t>& aData) {
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MOZ_ASSERT(aOwner);
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RefPtr<MIDIMessageEvent> e = new MIDIMessageEvent(aOwner);
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e->InitEvent(u"midimessage"_ns, false, false);
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e->mEvent->mTimeStamp = aReceivedTime;
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e->mRawData = aData.Clone();
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e->SetTrusted(true);
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return e.forget();
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}
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already_AddRefed<MIDIMessageEvent> MIDIMessageEvent::Constructor(
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const GlobalObject& aGlobal, const nsAString& aType,
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const MIDIMessageEventInit& aEventInitDict, ErrorResult& aRv) {
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nsCOMPtr<EventTarget> owner = do_QueryInterface(aGlobal.GetAsSupports());
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RefPtr<MIDIMessageEvent> e = new MIDIMessageEvent(owner);
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bool trusted = e->Init(owner);
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e->InitEvent(aType, aEventInitDict.mBubbles, aEventInitDict.mCancelable);
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// Set data for event. Timestamp will always be set to Now() (default for
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// event) using this constructor.
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const auto& a = aEventInitDict.mData.Value();
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a.ComputeState();
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e->mData = Uint8Array::Create(aGlobal.Context(), owner, a.Length(), a.Data());
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if (NS_WARN_IF(!e->mData)) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return nullptr;
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}
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e->SetTrusted(trusted);
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mozilla::HoldJSObjects(e.get());
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return e.forget();
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}
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void MIDIMessageEvent::GetData(JSContext* cx,
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JS::MutableHandle<JSObject*> aData,
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ErrorResult& aRv) {
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if (!mData) {
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mData =
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Uint8Array::Create(cx, this, mRawData.Length(), mRawData.Elements());
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if (!mData) {
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aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
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return;
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}
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mRawData.Clear();
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}
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aData.set(mData);
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}
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} // namespace dom
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} // namespace mozilla
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