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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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/JSWindowActorBinding.h"
#include "mozilla/dom/JSWindowActorParent.h"
#include "mozilla/dom/BrowserParent.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/dom/WindowGlobalChild.h"
#include "mozilla/dom/WindowGlobalParent.h"
#include "mozilla/dom/MessageManagerBinding.h"
namespace mozilla::dom {
JSWindowActorParent::~JSWindowActorParent() { MOZ_ASSERT(!mManager); }
JSObject* JSWindowActorParent::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return JSWindowActorParent_Binding::Wrap(aCx, this, aGivenProto);
}
WindowGlobalParent* JSWindowActorParent::GetManager() const { return mManager; }
void JSWindowActorParent::Init(const nsACString& aName,
WindowGlobalParent* aManager) {
MOZ_ASSERT(!mManager, "Cannot Init() a JSWindowActorParent twice!");
SetName(aName);
mManager = aManager;
InvokeCallback(CallbackFunction::ActorCreated);
}
void JSWindowActorParent::SendRawMessage(
const JSActorMessageMeta& aMeta, Maybe<ipc::StructuredCloneData>&& aData,
Maybe<ipc::StructuredCloneData>&& aStack, ErrorResult& aRv) {
if (NS_WARN_IF(!CanSend() || !mManager || !mManager->CanSend())) {
aRv.ThrowInvalidStateError("JSWindowActorParent cannot send at the moment");
return;
}
if (mManager->IsInProcess()) {
SendRawMessageInProcess(
aMeta, std::move(aData), std::move(aStack),
[manager{mManager}]() { return manager->GetChildActor(); });
return;
}
size_t length = 0;
if (aData) {
length += aData->DataLength();
}
if (aStack) {
length += aStack->DataLength();
}
if (NS_WARN_IF(!AllowMessage(aMeta, length))) {
aRv.ThrowDataCloneError(
nsPrintfCString("JSWindowActorParent serialization error: data too "
"large, in actor '%s'",
PromiseFlatCString(aMeta.actorName()).get()));
return;
}
// Cross-process case - send data over WindowGlobalParent to other side.
RefPtr<BrowserParent> browserParent = mManager->GetBrowserParent();
ContentParent* cp = browserParent->Manager();
Maybe<ClonedMessageData> msgData;
if (aData) {
msgData.emplace();
if (NS_WARN_IF(!aData->BuildClonedMessageDataForParent(cp, *msgData))) {
aRv.ThrowDataCloneError(
nsPrintfCString("JSWindowActorParent serialization error: cannot "
"clone, in actor '%s'",
PromiseFlatCString(aMeta.actorName()).get()));
return;
}
}
Maybe<ClonedMessageData> stackData;
if (aStack) {
stackData.emplace();
if (!aStack->BuildClonedMessageDataForParent(cp, *stackData)) {
stackData.reset();
}
}
if (NS_WARN_IF(!mManager->SendRawMessage(aMeta, msgData, stackData))) {
aRv.ThrowOperationError(
nsPrintfCString("JSWindowActorParent send error in actor '%s'",
PromiseFlatCString(aMeta.actorName()).get()));
return;
}
}
CanonicalBrowsingContext* JSWindowActorParent::GetBrowsingContext(
ErrorResult& aRv) {
if (!mManager) {
aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
return nullptr;
}
return mManager->BrowsingContext();
}
void JSWindowActorParent::ClearManager() { mManager = nullptr; }
NS_IMPL_CYCLE_COLLECTION_INHERITED(JSWindowActorParent, JSActor, mManager)
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(JSWindowActorParent, JSActor)
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(JSWindowActorParent)
NS_INTERFACE_MAP_END_INHERITING(JSActor)
NS_IMPL_ADDREF_INHERITED(JSWindowActorParent, JSActor)
NS_IMPL_RELEASE_INHERITED(JSWindowActorParent, JSActor)
} // namespace mozilla::dom
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