gecko-dev/dom/media/eme/MediaEncryptedEvent.cpp

113 строки
3.9 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 "MediaEncryptedEvent.h"
#include "mozilla/dom/MediaEncryptedEventBinding.h"
#include "nsContentUtils.h"
#include "js/ArrayBuffer.h"
#include "jsfriendapi.h"
#include "nsINode.h"
#include "mozilla/dom/MediaKeys.h"
#include "mozilla/HoldDropJSObjects.h"
namespace mozilla::dom {
NS_IMPL_CYCLE_COLLECTION_CLASS(MediaEncryptedEvent)
NS_IMPL_ADDREF_INHERITED(MediaEncryptedEvent, Event)
NS_IMPL_RELEASE_INHERITED(MediaEncryptedEvent, Event)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(MediaEncryptedEvent, Event)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(MediaEncryptedEvent, Event)
NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mInitData)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(MediaEncryptedEvent, Event)
tmp->mInitData = nullptr;
mozilla::DropJSObjects(this);
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MediaEncryptedEvent)
NS_INTERFACE_MAP_END_INHERITING(Event)
MediaEncryptedEvent::MediaEncryptedEvent(EventTarget* aOwner)
: Event(aOwner, nullptr, nullptr) {
mozilla::HoldJSObjects(this);
}
MediaEncryptedEvent::~MediaEncryptedEvent() {
mInitData = nullptr;
mozilla::DropJSObjects(this);
}
JSObject* MediaEncryptedEvent::WrapObjectInternal(
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
return MediaEncryptedEvent_Binding::Wrap(aCx, this, aGivenProto);
}
already_AddRefed<MediaEncryptedEvent> MediaEncryptedEvent::Constructor(
EventTarget* aOwner) {
RefPtr<MediaEncryptedEvent> e = new MediaEncryptedEvent(aOwner);
e->InitEvent(u"encrypted"_ns, CanBubble::eNo, Cancelable::eNo);
e->SetTrusted(true);
return e.forget();
}
already_AddRefed<MediaEncryptedEvent> MediaEncryptedEvent::Constructor(
EventTarget* aOwner, const nsAString& aInitDataType,
const nsTArray<uint8_t>& aInitData) {
RefPtr<MediaEncryptedEvent> e = new MediaEncryptedEvent(aOwner);
e->InitEvent(u"encrypted"_ns, CanBubble::eNo, Cancelable::eNo);
e->mInitDataType = aInitDataType;
e->mRawInitData = aInitData.Clone();
e->SetTrusted(true);
return e.forget();
}
already_AddRefed<MediaEncryptedEvent> MediaEncryptedEvent::Constructor(
const GlobalObject& aGlobal, const nsAString& aType,
const MediaKeyNeededEventInit& aEventInitDict, ErrorResult& aRv) {
nsCOMPtr<EventTarget> owner = do_QueryInterface(aGlobal.GetAsSupports());
RefPtr<MediaEncryptedEvent> e = new MediaEncryptedEvent(owner);
bool trusted = e->Init(owner);
e->InitEvent(aType, aEventInitDict.mBubbles, aEventInitDict.mCancelable);
e->mInitDataType = aEventInitDict.mInitDataType;
if (!aEventInitDict.mInitData.IsNull()) {
JS::Rooted<JSObject*> buffer(aGlobal.Context(),
aEventInitDict.mInitData.Value().Obj());
e->mInitData = JS::CopyArrayBuffer(aGlobal.Context(), buffer);
if (!e->mInitData) {
aRv.NoteJSContextException(aGlobal.Context());
return nullptr;
}
}
e->SetTrusted(trusted);
return e.forget();
}
void MediaEncryptedEvent::GetInitDataType(nsString& aRetVal) const {
aRetVal = mInitDataType;
}
void MediaEncryptedEvent::GetInitData(JSContext* cx,
JS::MutableHandle<JSObject*> aData,
ErrorResult& aRv) {
if (mRawInitData.Length()) {
mInitData = ArrayBuffer::Create(cx, this, mRawInitData.Length(),
mRawInitData.Elements());
if (!mInitData) {
aRv.NoteJSContextException(cx);
return;
}
mRawInitData.Clear();
}
aData.set(mInitData);
}
} // namespace mozilla::dom