gecko/dom/ipc/ContentBridgeChild.cpp

196 lines
6.6 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 "mozilla/dom/ContentBridgeChild.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/StructuredCloneUtils.h"
#include "mozilla/dom/TabChild.h"
#include "mozilla/dom/ipc/BlobChild.h"
#include "mozilla/jsipc/CrossProcessObjectWrappers.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "nsIObserverService.h"
using namespace mozilla::ipc;
using namespace mozilla::jsipc;
namespace mozilla {
namespace dom {
NS_IMPL_ISUPPORTS(ContentBridgeChild,
nsIContentChild,
nsIObserver)
ContentBridgeChild::ContentBridgeChild(Transport* aTransport)
: mTransport(aTransport)
{}
ContentBridgeChild::~ContentBridgeChild()
{
XRE_GetIOMessageLoop()->PostTask(FROM_HERE, new DeleteTask<Transport>(mTransport));
}
void
ContentBridgeChild::ActorDestroy(ActorDestroyReason aWhy)
{
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (os) {
os->RemoveObserver(this, "content-child-shutdown");
}
MessageLoop::current()->PostTask(
FROM_HERE,
NewRunnableMethod(this, &ContentBridgeChild::DeferredDestroy));
}
/*static*/ ContentBridgeChild*
ContentBridgeChild::Create(Transport* aTransport, ProcessId aOtherPid)
{
nsRefPtr<ContentBridgeChild> bridge =
new ContentBridgeChild(aTransport);
bridge->mSelfRef = bridge;
DebugOnly<bool> ok = bridge->Open(aTransport, aOtherPid, XRE_GetIOMessageLoop());
MOZ_ASSERT(ok);
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
if (os) {
os->AddObserver(bridge, "content-child-shutdown", false);
}
return bridge;
}
void
ContentBridgeChild::DeferredDestroy()
{
mSelfRef = nullptr;
// |this| was just destroyed, hands off
}
bool
ContentBridgeChild::RecvAsyncMessage(const nsString& aMsg,
const ClonedMessageData& aData,
InfallibleTArray<jsipc::CpowEntry>&& aCpows,
const IPC::Principal& aPrincipal)
{
return nsIContentChild::RecvAsyncMessage(aMsg, aData, Move(aCpows), aPrincipal);
}
PBlobChild*
ContentBridgeChild::SendPBlobConstructor(PBlobChild* actor,
const BlobConstructorParams& params)
{
return PContentBridgeChild::SendPBlobConstructor(actor, params);
}
bool
ContentBridgeChild::SendPBrowserConstructor(PBrowserChild* aActor,
const TabId& aTabId,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpID,
const bool& aIsForApp,
const bool& aIsForBrowser)
{
return PContentBridgeChild::SendPBrowserConstructor(aActor,
aTabId,
aContext,
aChromeFlags,
aCpID,
aIsForApp,
aIsForBrowser);
}
// This implementation is identical to ContentChild::GetCPOWManager but we can't
// move it to nsIContentChild because it calls ManagedPJavaScriptChild() which
// only exists in PContentChild and PContentBridgeChild.
jsipc::CPOWManager*
ContentBridgeChild::GetCPOWManager()
{
if (ManagedPJavaScriptChild().Length()) {
return CPOWManagerFor(ManagedPJavaScriptChild()[0]);
}
return CPOWManagerFor(SendPJavaScriptConstructor());
}
mozilla::jsipc::PJavaScriptChild *
ContentBridgeChild::AllocPJavaScriptChild()
{
return nsIContentChild::AllocPJavaScriptChild();
}
bool
ContentBridgeChild::DeallocPJavaScriptChild(PJavaScriptChild *child)
{
return nsIContentChild::DeallocPJavaScriptChild(child);
}
PBrowserChild*
ContentBridgeChild::AllocPBrowserChild(const TabId& aTabId,
const IPCTabContext &aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpID,
const bool& aIsForApp,
const bool& aIsForBrowser)
{
return nsIContentChild::AllocPBrowserChild(aTabId,
aContext,
aChromeFlags,
aCpID,
aIsForApp,
aIsForBrowser);
}
bool
ContentBridgeChild::DeallocPBrowserChild(PBrowserChild* aChild)
{
return nsIContentChild::DeallocPBrowserChild(aChild);
}
bool
ContentBridgeChild::RecvPBrowserConstructor(PBrowserChild* aActor,
const TabId& aTabId,
const IPCTabContext& aContext,
const uint32_t& aChromeFlags,
const ContentParentId& aCpID,
const bool& aIsForApp,
const bool& aIsForBrowser)
{
return ContentChild::GetSingleton()->RecvPBrowserConstructor(aActor,
aTabId,
aContext,
aChromeFlags,
aCpID,
aIsForApp,
aIsForBrowser);
}
PBlobChild*
ContentBridgeChild::AllocPBlobChild(const BlobConstructorParams& aParams)
{
return nsIContentChild::AllocPBlobChild(aParams);
}
bool
ContentBridgeChild::DeallocPBlobChild(PBlobChild* aActor)
{
return nsIContentChild::DeallocPBlobChild(aActor);
}
NS_IMETHODIMP
ContentBridgeChild::Observe(nsISupports* aSubject,
const char* aTopic,
const char16_t* aData)
{
if (!strcmp(aTopic, "content-child-shutdown")) {
Close();
}
return NS_OK;
}
} // namespace dom
} // namespace mozilla