gecko-dev/dom/presentation/ipc/PresentationIPCService.cpp

296 строки
8.6 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 ts=8 et ft=cpp : */
/* 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/ContentChild.h"
#include "mozilla/dom/PPresentation.h"
#include "mozilla/ipc/InputStreamUtils.h"
#include "mozilla/ipc/URIUtils.h"
#include "nsIPresentationListener.h"
#include "PresentationCallbacks.h"
#include "PresentationChild.h"
#include "PresentationIPCService.h"
using namespace mozilla;
using namespace mozilla::dom;
using namespace mozilla::ipc;
namespace {
PresentationChild* sPresentationChild;
} // anonymous
NS_IMPL_ISUPPORTS(PresentationIPCService, nsIPresentationService)
PresentationIPCService::PresentationIPCService()
{
ContentChild* contentChild = ContentChild::GetSingleton();
if (NS_WARN_IF(!contentChild)) {
return;
}
sPresentationChild = new PresentationChild(this);
NS_WARN_IF(!contentChild->SendPPresentationConstructor(sPresentationChild));
}
/* virtual */
PresentationIPCService::~PresentationIPCService()
{
mAvailabilityListeners.Clear();
mSessionListeners.Clear();
mRespondingSessionIds.Clear();
mRespondingWindowIds.Clear();
sPresentationChild = nullptr;
}
NS_IMETHODIMP
PresentationIPCService::StartSession(const nsAString& aUrl,
const nsAString& aSessionId,
const nsAString& aOrigin,
const nsAString& aDeviceId,
nsIPresentationServiceCallback* aCallback)
{
return SendRequest(aCallback, StartSessionRequest(nsAutoString(aUrl),
nsAutoString(aSessionId),
nsAutoString(aOrigin),
nsAutoString(aDeviceId)));
}
NS_IMETHODIMP
PresentationIPCService::SendSessionMessage(const nsAString& aSessionId,
nsIInputStream* aStream)
{
MOZ_ASSERT(!aSessionId.IsEmpty());
MOZ_ASSERT(aStream);
mozilla::ipc::OptionalInputStreamParams stream;
nsTArray<mozilla::ipc::FileDescriptor> fds;
SerializeInputStream(aStream, stream, fds);
MOZ_ASSERT(fds.IsEmpty());
return SendRequest(nullptr, SendSessionMessageRequest(nsAutoString(aSessionId), stream));
}
NS_IMETHODIMP
PresentationIPCService::CloseSession(const nsAString& aSessionId)
{
MOZ_ASSERT(!aSessionId.IsEmpty());
return SendRequest(nullptr, CloseSessionRequest(nsAutoString(aSessionId)));
}
NS_IMETHODIMP
PresentationIPCService::TerminateSession(const nsAString& aSessionId)
{
MOZ_ASSERT(!aSessionId.IsEmpty());
return SendRequest(nullptr, TerminateSessionRequest(nsAutoString(aSessionId)));
}
nsresult
PresentationIPCService::SendRequest(nsIPresentationServiceCallback* aCallback,
const PresentationIPCRequest& aRequest)
{
if (sPresentationChild) {
PresentationRequestChild* actor = new PresentationRequestChild(aCallback);
NS_WARN_IF(!sPresentationChild->SendPPresentationRequestConstructor(actor, aRequest));
}
return NS_OK;
}
NS_IMETHODIMP
PresentationIPCService::RegisterAvailabilityListener(nsIPresentationAvailabilityListener* aListener)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aListener);
mAvailabilityListeners.AppendElement(aListener);
if (sPresentationChild) {
NS_WARN_IF(!sPresentationChild->SendRegisterAvailabilityHandler());
}
return NS_OK;
}
NS_IMETHODIMP
PresentationIPCService::UnregisterAvailabilityListener(nsIPresentationAvailabilityListener* aListener)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aListener);
mAvailabilityListeners.RemoveElement(aListener);
if (sPresentationChild) {
NS_WARN_IF(!sPresentationChild->SendUnregisterAvailabilityHandler());
}
return NS_OK;
}
NS_IMETHODIMP
PresentationIPCService::RegisterSessionListener(const nsAString& aSessionId,
nsIPresentationSessionListener* aListener)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aListener);
mSessionListeners.Put(aSessionId, aListener);
if (sPresentationChild) {
NS_WARN_IF(!sPresentationChild->SendRegisterSessionHandler(nsAutoString(aSessionId)));
}
return NS_OK;
}
NS_IMETHODIMP
PresentationIPCService::UnregisterSessionListener(const nsAString& aSessionId)
{
MOZ_ASSERT(NS_IsMainThread());
UntrackSessionInfo(aSessionId);
mSessionListeners.Remove(aSessionId);
if (sPresentationChild) {
NS_WARN_IF(!sPresentationChild->SendUnregisterSessionHandler(nsAutoString(aSessionId)));
}
return NS_OK;
}
NS_IMETHODIMP
PresentationIPCService::RegisterRespondingListener(uint64_t aWindowId,
nsIPresentationRespondingListener* aListener)
{
MOZ_ASSERT(NS_IsMainThread());
mRespondingListeners.Put(aWindowId, aListener);
if (sPresentationChild) {
NS_WARN_IF(!sPresentationChild->SendRegisterRespondingHandler(aWindowId));
}
return NS_OK;
}
NS_IMETHODIMP
PresentationIPCService::UnregisterRespondingListener(uint64_t aWindowId)
{
MOZ_ASSERT(NS_IsMainThread());
mRespondingListeners.Remove(aWindowId);
if (sPresentationChild) {
NS_WARN_IF(!sPresentationChild->SendUnregisterRespondingHandler(aWindowId));
}
return NS_OK;
}
nsresult
PresentationIPCService::NotifySessionStateChange(const nsAString& aSessionId,
uint16_t aState)
{
nsCOMPtr<nsIPresentationSessionListener> listener;
if (NS_WARN_IF(!mSessionListeners.Get(aSessionId, getter_AddRefs(listener)))) {
return NS_OK;
}
return listener->NotifyStateChange(aSessionId, aState);
}
nsresult
PresentationIPCService::NotifyMessage(const nsAString& aSessionId,
const nsACString& aData)
{
nsCOMPtr<nsIPresentationSessionListener> listener;
if (NS_WARN_IF(!mSessionListeners.Get(aSessionId, getter_AddRefs(listener)))) {
return NS_OK;
}
return listener->NotifyMessage(aSessionId, aData);
}
nsresult
PresentationIPCService::NotifySessionConnect(uint64_t aWindowId,
const nsAString& aSessionId)
{
nsCOMPtr<nsIPresentationRespondingListener> listener;
if (NS_WARN_IF(!mRespondingListeners.Get(aWindowId, getter_AddRefs(listener)))) {
return NS_OK;
}
return listener->NotifySessionConnect(aWindowId, aSessionId);
}
nsresult
PresentationIPCService::NotifyAvailableChange(bool aAvailable)
{
nsTObserverArray<nsCOMPtr<nsIPresentationAvailabilityListener>>::ForwardIterator iter(mAvailabilityListeners);
while (iter.HasMore()) {
nsIPresentationAvailabilityListener* listener = iter.GetNext();
NS_WARN_IF(NS_FAILED(listener->NotifyAvailableChange(aAvailable)));
}
return NS_OK;
}
NS_IMETHODIMP
PresentationIPCService::GetExistentSessionIdAtLaunch(uint64_t aWindowId,
nsAString& aSessionId)
{
MOZ_ASSERT(NS_IsMainThread());
nsString* sessionId = mRespondingSessionIds.Get(aWindowId);
if (sessionId) {
aSessionId.Assign(*sessionId);
} else {
aSessionId.Truncate();
}
return NS_OK;
}
NS_IMETHODIMP
PresentationIPCService::NotifyReceiverReady(const nsAString& aSessionId,
uint64_t aWindowId)
{
MOZ_ASSERT(NS_IsMainThread());
// No actual window uses 0 as its ID.
if (NS_WARN_IF(aWindowId == 0)) {
return NS_ERROR_NOT_AVAILABLE;
}
// Track the responding info for an OOP receiver page.
mRespondingSessionIds.Put(aWindowId, new nsAutoString(aSessionId));
mRespondingWindowIds.Put(aSessionId, aWindowId);
NS_WARN_IF(!sPresentationChild->SendNotifyReceiverReady(nsAutoString(aSessionId)));
// Release mCallback after using aSessionId
// because aSessionId is held by mCallback.
mCallback = nullptr;
return NS_OK;
}
NS_IMETHODIMP
PresentationIPCService::UntrackSessionInfo(const nsAString& aSessionId)
{
// Remove the OOP responding info (if it has never been used).
uint64_t windowId = 0;
if(mRespondingWindowIds.Get(aSessionId, &windowId)) {
mRespondingWindowIds.Remove(aSessionId);
mRespondingSessionIds.Remove(windowId);
}
return NS_OK;
}
void
PresentationIPCService::NotifyPresentationChildDestroyed()
{
sPresentationChild = nullptr;
}
nsresult
PresentationIPCService::MonitorResponderLoading(const nsAString& aSessionId,
nsIDocShell* aDocShell)
{
MOZ_ASSERT(NS_IsMainThread());
mCallback = new PresentationResponderLoadingCallback(aSessionId);
return mCallback->Init(aDocShell);
}