зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
2.5 KiB
C++
83 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 "PresentationTransportBuilderConstructor.h"
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#include "nsComponentManagerUtils.h"
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#include "nsIPresentationControlChannel.h"
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#include "nsIPresentationSessionTransport.h"
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#include "nsXULAppAPI.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_ISUPPORTS(DummyPresentationTransportBuilderConstructor,
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nsIPresentationTransportBuilderConstructor)
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NS_IMETHODIMP
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DummyPresentationTransportBuilderConstructor::CreateTransportBuilder(
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uint8_t aType,
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nsIPresentationSessionTransportBuilder** aRetval)
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{
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MOZ_ASSERT(false, "Unexpected to be invoked.");
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return NS_OK;
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}
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/* static */ already_AddRefed<nsIPresentationTransportBuilderConstructor>
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PresentationTransportBuilderConstructor::Create()
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{
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nsCOMPtr<nsIPresentationTransportBuilderConstructor> constructor;
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if (XRE_IsContentProcess()) {
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constructor = new DummyPresentationTransportBuilderConstructor();
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} else {
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constructor = new PresentationTransportBuilderConstructor();
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}
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return constructor.forget();
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}
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NS_IMETHODIMP
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PresentationTransportBuilderConstructor::CreateTransportBuilder(
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uint8_t aType,
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nsIPresentationSessionTransportBuilder** aRetval)
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{
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if (NS_WARN_IF(!aRetval)) {
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return NS_ERROR_INVALID_ARG;
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}
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*aRetval = nullptr;
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if (NS_WARN_IF(aType != nsIPresentationChannelDescription::TYPE_TCP &&
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aType != nsIPresentationChannelDescription::TYPE_DATACHANNEL)) {
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return NS_ERROR_INVALID_ARG;
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}
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if (XRE_IsContentProcess()) {
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MOZ_ASSERT(false,
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"CreateTransportBuilder can only be invoked in parent process.");
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return NS_ERROR_FAILURE;
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}
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nsCOMPtr<nsIPresentationSessionTransportBuilder> builder;
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if (aType == nsIPresentationChannelDescription::TYPE_TCP) {
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builder =
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do_CreateInstance(PRESENTATION_TCP_SESSION_TRANSPORT_CONTRACTID);
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} else {
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builder =
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do_CreateInstance("@mozilla.org/presentation/datachanneltransportbuilder;1");
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}
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if (NS_WARN_IF(!builder)) {
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return NS_ERROR_DOM_OPERATION_ERR;
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}
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builder.forget(aRetval);
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return NS_OK;
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}
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} // namespace dom
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} // namespace mozilla
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