gecko-dev/dom/broadcastchannel/BroadcastChannelParent.cpp

103 строки
2.5 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 "BroadcastChannelParent.h"
#include "BroadcastChannelService.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/ipc/BlobParent.h"
#include "mozilla/ipc/BackgroundParent.h"
#include "mozilla/Unused.h"
#include "nsIScriptSecurityManager.h"
namespace mozilla {
using namespace ipc;
namespace dom {
BroadcastChannelParent::BroadcastChannelParent(const nsAString& aOriginChannelKey)
: mService(BroadcastChannelService::GetOrCreate())
, mOriginChannelKey(aOriginChannelKey)
{
AssertIsOnBackgroundThread();
mService->RegisterActor(this, mOriginChannelKey);
}
BroadcastChannelParent::~BroadcastChannelParent()
{
AssertIsOnBackgroundThread();
}
mozilla::ipc::IPCResult
BroadcastChannelParent::RecvPostMessage(const ClonedMessageData& aData)
{
AssertIsOnBackgroundThread();
if (NS_WARN_IF(!mService)) {
return IPC_FAIL_NO_REASON(this);
}
mService->PostMessage(this, aData, mOriginChannelKey);
return IPC_OK();
}
mozilla::ipc::IPCResult
BroadcastChannelParent::RecvClose()
{
AssertIsOnBackgroundThread();
if (NS_WARN_IF(!mService)) {
return IPC_FAIL_NO_REASON(this);
}
mService->UnregisterActor(this, mOriginChannelKey);
mService = nullptr;
Unused << Send__delete__(this);
return IPC_OK();
}
void
BroadcastChannelParent::ActorDestroy(ActorDestroyReason aWhy)
{
AssertIsOnBackgroundThread();
if (mService) {
// This object is about to be released and with it, also mService will be
// released too.
mService->UnregisterActor(this, mOriginChannelKey);
}
}
void
BroadcastChannelParent::Deliver(const ClonedMessageData& aData)
{
AssertIsOnBackgroundThread();
// Duplicate the data for this parent.
ClonedMessageData newData(aData);
// Create new BlobParent objects for this message.
for (uint32_t i = 0, len = newData.blobsParent().Length(); i < len; ++i) {
RefPtr<BlobImpl> impl =
static_cast<BlobParent*>(newData.blobsParent()[i])->GetBlobImpl();
PBlobParent* blobParent =
BackgroundParent::GetOrCreateActorForBlobImpl(Manager(), impl);
if (!blobParent) {
return;
}
newData.blobsParent()[i] = blobParent;
}
Unused << SendNotify(newData);
}
} // namespace dom
} // namespace mozilla