gecko-dev/dom/inputport/InputPort.cpp

120 строки
2.9 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 "MediaStreamGraph.h"
#include "DOMMediaStream.h"
#include "InputPortData.h"
#include "InputPortListeners.h"
#include "mozilla/AsyncEventDispatcher.h"
#include "mozilla/dom/InputPort.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_INHERITED(InputPort, DOMEventTargetHelper,
mStream,
mInputPortListener)
NS_IMPL_ADDREF_INHERITED(InputPort, DOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(InputPort, DOMEventTargetHelper)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(InputPort)
NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
InputPort::InputPort(nsPIDOMWindowInner* aWindow)
: DOMEventTargetHelper(aWindow)
, mIsConnected(false)
{
}
InputPort::~InputPort()
{
}
void
InputPort::Init(nsIInputPortData* aData, nsIInputPortListener* aListener, ErrorResult& aRv)
{
MOZ_ASSERT(aData);
MOZ_ASSERT(aListener);
aRv = aData->GetId(mId);
if (NS_WARN_IF(aRv.Failed())) {
return;
}
if (NS_WARN_IF(mId.IsEmpty())) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
InputPortType type = static_cast<InputPortData*>(aData)->GetType();
if (NS_WARN_IF(type == InputPortType::EndGuard_)) {
aRv.Throw(NS_ERROR_FAILURE);
return;
}
aData->GetConnected(&mIsConnected);
mInputPortListener = static_cast<InputPortListener*>(aListener);
mInputPortListener->RegisterInputPort(this);
MediaStreamGraph* graph =
MediaStreamGraph::GetInstance(MediaStreamGraph::SYSTEM_THREAD_DRIVER,
AudioChannel::Normal);
mStream = DOMMediaStream::CreateSourceStreamAsInput(GetOwner(), graph);
}
void
InputPort::Shutdown()
{
MOZ_ASSERT(mInputPortListener);
if (mInputPortListener) {
mInputPortListener->UnregisterInputPort(this);
mInputPortListener = nullptr;
}
}
/* virtual */ JSObject*
InputPort::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return InputPortBinding::Wrap(aCx, this, aGivenProto);
}
void
InputPort::NotifyConnectionChanged(bool aIsConnected)
{
MOZ_ASSERT(mIsConnected != aIsConnected);
mIsConnected = aIsConnected;
RefPtr<AsyncEventDispatcher> asyncDispatcher =
new AsyncEventDispatcher(this,
aIsConnected ? NS_LITERAL_STRING("connect") :
NS_LITERAL_STRING("disconnect"),
false);
asyncDispatcher->PostDOMEvent();
}
void
InputPort::GetId(nsAString& aId) const
{
aId = mId;
}
DOMMediaStream*
InputPort::Stream() const
{
return mStream;
}
bool
InputPort::Connected() const
{
return mIsConnected;
}
} // namespace dom
} // namespace mozilla