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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
#include "mozilla/dom/JSWindowActorBinding.h"
#include "mozilla/dom/JSWindowActorChild.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/WindowGlobalChild.h"
#include "mozilla/dom/WindowGlobalParent.h"
#include "mozilla/dom/WindowProxyHolder.h"
#include "mozilla/dom/MessageManagerBinding.h"
#include "mozilla/dom/BrowsingContext.h"
#include "nsGlobalWindowInner.h"
namespace mozilla::dom {
JSWindowActorChild::~JSWindowActorChild() { MOZ_ASSERT(!mManager); }
JSObject* JSWindowActorChild::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return JSWindowActorChild_Binding::Wrap(aCx, this, aGivenProto);
}
WindowGlobalChild* JSWindowActorChild::GetManager() const { return mManager; }
WindowContext* JSWindowActorChild::GetWindowContext() const {
return mManager ? mManager->WindowContext() : nullptr;
}
void JSWindowActorChild::Init(const nsACString& aName,
WindowGlobalChild* aManager) {
MOZ_ASSERT(!mManager, "Cannot Init() a JSWindowActorChild twice!");
SetName(aName);
mManager = aManager;
InvokeCallback(CallbackFunction::ActorCreated);
}
#ifdef DEBUG
# define DEBUG_WARN_MESSAGE_UNSENT(aMeta, aWarning) \
NS_DebugBreak( \
NS_DEBUG_WARNING, \
nsPrintfCString( \
"JSWindowActorChild::SendRawMessage (%s, %s) not sent: %s", \
(aMeta).actorName().get(), \
NS_LossyConvertUTF16toASCII((aMeta).messageName()).get(), \
(aWarning)) \
.get(), \
nullptr, __FILE__, __LINE__)
#else
# define DEBUG_WARN_MESSAGE_UNSENT(aMeta, aWarning)
#endif
void JSWindowActorChild::SendRawMessage(
const JSActorMessageMeta& aMeta, Maybe<ipc::StructuredCloneData>&& aData,
Maybe<ipc::StructuredCloneData>&& aStack, ErrorResult& aRv) {
if (!CanSend() || !mManager || !mManager->CanSend()) {
DEBUG_WARN_MESSAGE_UNSENT(
aMeta, "!CanSend() || !mManager || !mManager->CanSend()");
aRv.ThrowInvalidStateError("JSWindowActorChild cannot send at the moment");
return;
}
if (mManager->IsInProcess()) {
SendRawMessageInProcess(
aMeta, std::move(aData), std::move(aStack),
[manager{mManager}]() { return manager->GetParentActor(); });
return;
}
// Cross-process case - send data over WindowGlobalChild to other side.
Maybe<ClonedMessageData> msgData;
if (aData) {
msgData.emplace();
if (!aData->BuildClonedMessageData(*msgData)) {
DEBUG_WARN_MESSAGE_UNSENT(aMeta,
"!aData->BuildClonedMessageData(*msgData)");
aRv.ThrowDataCloneError(
nsPrintfCString("JSWindowActorChild serialization error: cannot "
"clone, in actor '%s'",
PromiseFlatCString(aMeta.actorName()).get()));
return;
}
}
Maybe<ClonedMessageData> stackData;
if (aStack) {
stackData.emplace();
if (!aStack->BuildClonedMessageData(*stackData)) {
stackData.reset();
}
}
if (!mManager->SendRawMessage(aMeta, msgData, stackData)) {
DEBUG_WARN_MESSAGE_UNSENT(
aMeta, "!mManager->SendRawMessage(aMeta, msgData, stackData)");
aRv.ThrowOperationError(
nsPrintfCString("JSWindowActorChild send error in actor '%s'",
PromiseFlatCString(aMeta.actorName()).get()));
return;
}
}
Document* JSWindowActorChild::GetDocument(ErrorResult& aRv) {
if (!mManager) {
ThrowStateErrorForGetter("document", aRv);
return nullptr;
}
nsGlobalWindowInner* window = mManager->GetWindowGlobal();
return window ? window->GetDocument() : nullptr;
}
BrowsingContext* JSWindowActorChild::GetBrowsingContext(ErrorResult& aRv) {
if (!mManager) {
ThrowStateErrorForGetter("browsingContext", aRv);
return nullptr;
}
return mManager->BrowsingContext();
}
nsIDocShell* JSWindowActorChild::GetDocShell(ErrorResult& aRv) {
if (!mManager) {
ThrowStateErrorForGetter("docShell", aRv);
return nullptr;
}
return mManager->BrowsingContext()->GetDocShell();
}
Nullable<WindowProxyHolder> JSWindowActorChild::GetContentWindow(
ErrorResult& aRv) {
if (!mManager) {
ThrowStateErrorForGetter("contentWindow", aRv);
return nullptr;
}
if (nsGlobalWindowInner* window = mManager->GetWindowGlobal()) {
if (window->IsCurrentInnerWindow()) {
return WindowProxyHolder(window->GetBrowsingContext());
}
}
return nullptr;
}
void JSWindowActorChild::ClearManager() { mManager = nullptr; }
NS_IMPL_CYCLE_COLLECTION_INHERITED(JSWindowActorChild, JSActor, mManager)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(JSWindowActorChild)
NS_INTERFACE_MAP_END_INHERITING(JSActor)
NS_IMPL_ADDREF_INHERITED(JSWindowActorChild, JSActor)
NS_IMPL_RELEASE_INHERITED(JSWindowActorChild, JSActor)
} // namespace mozilla::dom