зеркало из https://github.com/mozilla/gecko-dev.git
116 строки
2.9 KiB
C++
116 строки
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "BroadcastChannelParent.h"
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#include "BroadcastChannelService.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/ipc/BlobParent.h"
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#include "mozilla/ipc/BackgroundParent.h"
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#include "mozilla/unused.h"
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namespace mozilla {
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using namespace ipc;
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namespace dom {
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BroadcastChannelParent::BroadcastChannelParent(
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const nsAString& aOrigin,
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const nsAString& aChannel)
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: mService(BroadcastChannelService::GetOrCreate())
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, mOrigin(aOrigin)
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, mChannel(aChannel)
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{
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AssertIsOnBackgroundThread();
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mService->RegisterActor(this);
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}
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BroadcastChannelParent::~BroadcastChannelParent()
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{
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AssertIsOnBackgroundThread();
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}
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bool
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BroadcastChannelParent::RecvPostMessage(const ClonedMessageData& aData)
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{
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AssertIsOnBackgroundThread();
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if (NS_WARN_IF(!mService)) {
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return false;
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}
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mService->PostMessage(this, aData, mOrigin, mChannel);
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return true;
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}
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bool
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BroadcastChannelParent::RecvClose()
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{
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AssertIsOnBackgroundThread();
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if (NS_WARN_IF(!mService)) {
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return false;
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}
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mService->UnregisterActor(this);
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mService = nullptr;
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unused << Send__delete__(this);
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return true;
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}
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void
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BroadcastChannelParent::ActorDestroy(ActorDestroyReason aWhy)
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{
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AssertIsOnBackgroundThread();
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if (mService) {
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// This object is about to be released and with it, also mService will be
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// released too.
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mService->UnregisterActor(this);
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}
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}
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void
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BroadcastChannelParent::CheckAndDeliver(const ClonedMessageData& aData,
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const nsString& aOrigin,
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const nsString& aChannel)
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{
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AssertIsOnBackgroundThread();
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if (aOrigin == mOrigin && aChannel == mChannel) {
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// We need to duplicate data only if we have blobs or if the manager of
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// them is different than the manager of this parent actor.
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if (aData.blobsParent().IsEmpty() ||
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static_cast<BlobParent*>(aData.blobsParent()[0])->GetBackgroundManager() == Manager()) {
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unused << SendNotify(aData);
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return;
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}
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// Duplicate the data for this parent.
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ClonedMessageData newData(aData);
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// Ricreate the BlobParent for this new message.
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for (uint32_t i = 0, len = newData.blobsParent().Length(); i < len; ++i) {
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nsRefPtr<FileImpl> impl =
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static_cast<BlobParent*>(newData.blobsParent()[i])->GetBlobImpl();
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PBlobParent* blobParent =
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BackgroundParent::GetOrCreateActorForBlobImpl(Manager(), impl);
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if (!blobParent) {
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return;
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}
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newData.blobsParent()[i] = blobParent;
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}
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unused << SendNotify(newData);
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}
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}
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} // dom namespace
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} // mozilla namespace
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