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Diffstat (limited to '')
-rw-r--r-- | docshell/base/ChildProcessChannelListener.cpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/docshell/base/ChildProcessChannelListener.cpp b/docshell/base/ChildProcessChannelListener.cpp new file mode 100644 index 0000000000..628d75abb1 --- /dev/null +++ b/docshell/base/ChildProcessChannelListener.cpp @@ -0,0 +1,61 @@ +/* -*- 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 "mozilla/dom/ChildProcessChannelListener.h" + +#include "mozilla/ipc/Endpoint.h" +#include "nsDocShellLoadState.h" + +namespace mozilla { +namespace dom { + +static StaticRefPtr<ChildProcessChannelListener> sCPCLSingleton; + +void ChildProcessChannelListener::RegisterCallback(uint64_t aIdentifier, + Callback&& aCallback) { + if (auto args = mChannelArgs.Extract(aIdentifier)) { + nsresult rv = + aCallback(args->mLoadState, std::move(args->mStreamFilterEndpoints), + args->mTiming); + args->mResolver(rv); + } else { + mCallbacks.InsertOrUpdate(aIdentifier, std::move(aCallback)); + } +} + +void ChildProcessChannelListener::OnChannelReady( + nsDocShellLoadState* aLoadState, uint64_t aIdentifier, + nsTArray<Endpoint>&& aStreamFilterEndpoints, nsDOMNavigationTiming* aTiming, + Resolver&& aResolver) { + if (auto callback = mCallbacks.Extract(aIdentifier)) { + nsresult rv = + (*callback)(aLoadState, std::move(aStreamFilterEndpoints), aTiming); + aResolver(rv); + } else { + mChannelArgs.InsertOrUpdate( + aIdentifier, CallbackArgs{aLoadState, std::move(aStreamFilterEndpoints), + aTiming, std::move(aResolver)}); + } +} + +ChildProcessChannelListener::~ChildProcessChannelListener() { + for (const auto& args : mChannelArgs.Values()) { + args.mResolver(NS_ERROR_FAILURE); + } +} + +already_AddRefed<ChildProcessChannelListener> +ChildProcessChannelListener::GetSingleton() { + if (!sCPCLSingleton) { + sCPCLSingleton = new ChildProcessChannelListener(); + ClearOnShutdown(&sCPCLSingleton); + } + RefPtr<ChildProcessChannelListener> cpcl = sCPCLSingleton; + return cpcl.forget(); +} + +} // namespace dom +} // namespace mozilla |